/* =============================================================================
 * ProtocolAgent — stylesheet
 * Analog lab notebook × scientific zine.
 *
 * TOP-LEVEL CLASS GROUPS (navigate this file with your editor's outline view)
 *   0. @import — Google Fonts (Fraunces, Newsreader, JetBrains Mono, Caveat)
 *   1. Tokens (:root)  ................ colors, fonts, shadows, hand-drawn assets
 *   2. Reset + base type .............. h1..h6, p, a, body paper texture
 *   3. Layout chrome .................. .topbar, .brand*, .crumb*, .topbar-actions
 *   4. View shells .................... .view, .view-dashboard/setup/run/protocol/memory
 *   5. Display headings ............... .display, .lede, .hand-annot, .label-hand
 *   6. Buttons ........................ .btn, .btn-primary/ghost/sm/xs/lg/toggle
 *   7. Inputs ......................... .input, .input.ruled, .input.mono, .input.caveat
 *   8. Cards + tilt ................... .card, .card-sub, .fade-in
 *   9. Dashboard ...................... .dash-grid, .project-card, .pc-*,
 *                                        .new-project-tile, .np-*, status dots
 *  10. Setup ......................... .zone-row, .dropzone, .dropzone-<role>,
 *                                        .dz-*, .ref-file*, .constraints*, .goal-card,
 *                                        .row-end, .sticky-launch
 *  11. Run view ...................... .run-grid, .run-left/right, .agents-panel,
 *                                        .agents-svg, .agents-fallback, .agent-tile,
 *                                        .agent-blob, .agent-label, phase-strip,
 *                                        .progress-bar, .score-tile, .log-pane
 *  12. Protocol view ................. .protocol-top, .proto-*, .gate-chips,
 *                                        .flow-strip, .flow-arrows, .block, .block-*,
 *                                        .drawer, .drawer-*, .reagents-rail,
 *                                        .reagent-index, .reagent-index-controls,
 *                                        .reagent-search, .reagent-cats, .cat-chip,
 *                                        .reagent-view-toggle, .reagent-index-groups,
 *                                        .reagent-cat-group, .cat-header, .cat-count,
 *                                        .reagent-card-grid, .reagent-card, .reagent-card::before,
 *                                        .reagent-card-head, .reagent-name, .reagent-cat-chip,
 *                                        .reagent-card-body, .reagent-oligo-strip,
 *                                        .reagent-volume-hint, .reagent-notes-hint,
 *                                        .reagent-card-usedin, .reagent-usedin-label,
 *                                        .reagent-usedin-pill, .reagent-empty
 *  13. Comments ...................... .comment*, .comment-composer, .caveat
 *  14. Memory ........................ .timeline, .sparkline*, .session-row,
 *                                        .session-*
 *  15. Chips + badges ................ .chip, .chip-ink/acid/outline/fern/terracotta,
 *                                        .chip-mark, .chip-owner-*, .score-badge
 *  16. Toasts + modals ............... .pa-toasts, .toast, .toast-*, .pa-modal*,
 *                                        .pdf-overlay, .pdf-modal, .pdf-iframe
 *  17. Login + 404 ................... .login-wrap, .login-card, .login-*, .notfound
 *  18. Utilities ..................... .mono, .hand, .muted, .small, .hidden,
 *                                        .sr-only, .ok, .warn, .active, .expanded,
 *                                        .blink, .acid-dot
 *  19. Animations .................... fadeUp, bob, pulse, ink-blot,
 *                                        typewriter-line, dash-scroll, sway, spin
 *  20. Responsive .................... breakpoints at 1180, 900, 560
 *  21. Print
 * =========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Caveat:wght@400;600&family=Fraunces:ital,opsz,wght@0,9..144,300..900;1,9..144,300..900&family=JetBrains+Mono:wght@400;500;700&family=Newsreader:ital,opsz,wght@0,6..72,300..800;1,6..72,300..800&display=swap');

/* -----------------------------------------------------------------------------
 * 1. Tokens
 * -------------------------------------------------------------------------- */
:root {
  /* palette */
  --paper:            #f2ecdc;
  --paper-shadow:     #e4dcc4;
  --paper-deep:       #d9d0b2;
  --ink:              #0b1e3a;
  --ink-soft:         #1c2f4d;
  --acid:             #d4ff3a;
  --acid-glow:        rgba(212,255,58,0.55);
  --terracotta:       #c9502b;
  --terracotta-soft:  #e0876a;
  --fern:             #4c6a52;
  --rust:             #9c5d2a;
  --muted:            #6b6b6b;
  --grid:             rgba(11,30,58,0.06);
  --rule:             rgba(11,30,58,0.14);

  /* typefaces */
  --f-display: 'Fraunces', 'Iowan Old Style', Georgia, serif;
  --f-body:    'Newsreader', Georgia, serif;
  --f-mono:    'JetBrains Mono', 'Menlo', 'Consolas', monospace;
  --f-hand:    'Caveat', 'Bradley Hand', cursive;

  /* shadow presets */
  --shadow-soft: 0 1px 0 rgba(11,30,58,0.06), 0 8px 20px rgba(11,30,58,0.09);
  --shadow-lift: 0 2px 0 rgba(11,30,58,0.08), 0 14px 34px rgba(11,30,58,0.14);
  --shadow-inset-page: inset 0 0 120px rgba(11,30,58,0.06),
                      inset 0 0 24px rgba(11,30,58,0.05);

  /* re-usable hand-drawn dashed border for dropzones. Inline SVG data URI so
     the dashes look slightly uneven — not the machine-perfect CSS `dashed`. */
  --dashed-ink: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='100%25' height='100%25'><rect x='3' y='3' width='calc(100%25 - 6)' height='calc(100%25 - 6)' fill='none' stroke='%230b1e3a' stroke-width='1.6' stroke-dasharray='9 5 3 6 11 4' stroke-linecap='round'/></svg>");
  --dashed-acid: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='100%25' height='100%25'><rect x='3' y='3' width='calc(100%25 - 6)' height='calc(100%25 - 6)' fill='none' stroke='%23c9502b' stroke-width='2' stroke-dasharray='10 4 4 5 12 3' stroke-linecap='round'/></svg>");

  /* margin scribble arrow */
  --scribble-arrow: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 40 20'><path d='M2 10 C 10 4, 20 16, 34 10' fill='none' stroke='%23c9502b' stroke-width='1.5' stroke-linecap='round'/><path d='M32 6 L 36 10 L 32 14' fill='none' stroke='%23c9502b' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/></svg>");
}

/* -----------------------------------------------------------------------------
 * 2. Reset + base type
 * -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
h1, h2, h3, h4, h5, h6, p, ul, ol, figure, blockquote { margin: 0; padding: 0; }
ul, ol { list-style: none; }
img, svg, video { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; background: transparent; border: 0; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--acid); outline-offset: 3px; }
::selection { background: var(--acid); color: var(--ink); }

html { font-size: 16px; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
body {
  min-height: 100vh;
  font-family: var(--f-body);
  font-size: 1.04rem;
  line-height: 1.55;
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    /* faint horizontal ruling like a lab notebook */
    repeating-linear-gradient(to bottom,
      transparent 0, transparent 31px,
      var(--rule) 31px, var(--rule) 32px),
    /* speckle */
    radial-gradient(1px 1px at 25% 40%, rgba(11,30,58,0.10) 50%, transparent 51%),
    radial-gradient(1px 1px at 70% 65%, rgba(11,30,58,0.08) 50%, transparent 51%),
    radial-gradient(1px 1px at 40% 85%, rgba(11,30,58,0.07) 50%, transparent 51%),
    /* corner wash */
    radial-gradient(circle at 12% 8%,  rgba(11,30,58,0.05)  0, transparent 45%),
    radial-gradient(circle at 88% 92%, rgba(156,93,42,0.07) 0, transparent 50%);
  background-attachment: fixed;
  box-shadow: var(--shadow-inset-page);
}

h1, h2, h3 {
  font-family: var(--f-display);
  font-weight: 500;
  font-style: italic;
  color: var(--ink);
  letter-spacing: -0.012em;
  line-height: 1.06;
  font-variation-settings: 'opsz' 96;
}
h1 { font-size: clamp(2.2rem, 3.6vw, 3.4rem); }
h2 { font-size: clamp(1.55rem, 2.4vw, 2.15rem); font-variation-settings: 'opsz' 48; }
h3 { font-size: 1.25rem; font-variation-settings: 'opsz' 24; font-weight: 600; }
h4 { font-family: var(--f-display); font-weight: 600; font-size: 1.02rem; letter-spacing: 0.02em; }
h5, h6 { font-family: var(--f-mono); font-weight: 500; font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-soft); }

p { margin-bottom: 0.7rem; }
p + p { margin-top: 0; }

hr {
  border: 0; height: 1px; background: var(--rule);
  margin: 1.5rem 0;
}
code, kbd, samp {
  font-family: var(--f-mono);
  font-size: 0.9em;
  background: rgba(11,30,58,0.07);
  padding: 0.05em 0.35em;
  border-radius: 2px;
}

/* -----------------------------------------------------------------------------
 * 3. Layout chrome — topbar / brand / breadcrumbs
 * -------------------------------------------------------------------------- */
.topbar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.75rem clamp(1rem, 3vw, 2.25rem);
  border-bottom: 1px solid var(--ink);
  background:
    linear-gradient(to bottom, rgba(217,208,178,0.55), rgba(242,236,220,0.75));
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(3px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  border-bottom: 0;
  font-family: var(--f-display);
  font-style: italic;
  font-weight: 600;
  font-size: 1.35rem;
  color: var(--ink);
  padding-right: 1.1rem;
  border-right: 1px solid var(--rule);
}
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 34px; height: 34px;
  font-family: var(--f-mono);
  font-style: normal;
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--ink);
  background: var(--acid);
  border: 1px solid var(--ink);
  transform: rotate(-4deg);
  box-shadow: 2px 2px 0 var(--ink), 0 0 14px var(--acid-glow);
}
.brand-name {
  font-family: var(--f-display);
  font-style: italic;
}

.crumbs {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  font-family: var(--f-mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.crumb {
  padding: 0.15rem 0.15rem;
  border-bottom: 0;
  color: var(--ink-soft);
  transition: color .15s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 22ch;
}
.crumb + .crumb::before {
  content: '/';
  margin-right: 0.55rem;
  color: var(--muted);
  opacity: 0.55;
}
a.crumb:hover { color: var(--terracotta); }
.crumb-current { color: var(--terracotta); }

.topbar-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

/* -----------------------------------------------------------------------------
 * 4. View shells
 * -------------------------------------------------------------------------- */
.view {
  display: block;
  padding: 2.25rem clamp(1.15rem, 4vw, 3rem) 4rem;
  max-width: 1440px;
  margin: 0 auto;
  animation: fadeUp .45s ease both;
}

.view-dashboard { }
.view-setup     { }
.view-run       { }
.view-protocol  { }
.view-memory    { }

/* -----------------------------------------------------------------------------
 * 5. Display headings + editorial marginalia
 * -------------------------------------------------------------------------- */
.display {
  font-family: var(--f-display);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  line-height: 1.02;
  letter-spacing: -0.018em;
  color: var(--ink);
  font-variation-settings: 'opsz' 144;
  margin-bottom: 0.6rem;
}
.lede {
  font-family: var(--f-body);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: 62ch;
  margin-bottom: 1.6rem;
}

/* hand-drawn margin annotation ("← click any card to open") */
.hand-annot {
  font-family: var(--f-hand);
  font-weight: 600;
  font-style: normal;
  font-size: 1.5rem;
  color: var(--terracotta);
  line-height: 1.05;
  margin-left: 0.5rem;
  transform: rotate(-2.5deg);
  display: inline-block;
  vertical-align: middle;
}

/* Little handwritten label used inside cards ("motivation", "overview", "reagents") */
.label-hand {
  font-family: var(--f-hand);
  font-weight: 600;
  font-size: 1.4rem;
  color: var(--terracotta);
  line-height: 1;
  margin-bottom: 0.55rem;
  transform: rotate(-1.5deg);
  display: inline-block;
  position: relative;
  padding-left: 0.15rem;
}
.section-label { margin: 0.5rem 0 0.75rem; }
.section-h {
  font-family: var(--f-display);
  font-style: italic;
  font-size: 1.55rem;
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

/* -----------------------------------------------------------------------------
 * 6. Buttons
 * -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  font-family: var(--f-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: lowercase;
  padding: 0.65rem 1.05rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: 0;
  box-shadow: 3px 3px 0 rgba(11,30,58,0.15);
  transition:
    transform .18s ease,
    box-shadow .18s ease,
    background .18s ease,
    color .18s ease;
  position: relative;
  overflow: visible;
}
.btn:hover {
  transform: translate(-1px, -1px) rotate(-0.4deg);
  box-shadow: 5px 5px 0 rgba(11,30,58,0.18);
}
.btn:hover::after {
  /* ink-blot splat behind the button on hover */
  content: '';
  position: absolute;
  inset: -6px;
  background: radial-gradient(circle at 30% 30%, rgba(212,255,58,0.35) 0%, transparent 60%);
  z-index: -1;
  animation: ink-blot .3s ease both;
  pointer-events: none;
}
.btn:active {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0 rgba(11,30,58,0.15);
}

.btn-primary {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  box-shadow: 3px 3px 0 var(--acid);
}
.btn-primary:hover {
  color: var(--acid);
  box-shadow: 5px 5px 0 var(--acid), 0 0 14px var(--acid-glow);
}

.btn-ghost {
  color: var(--ink-soft);
  border-color: var(--rule);
  box-shadow: none;
  background: transparent;
}
.btn-ghost:hover {
  background: rgba(11,30,58,0.05);
  color: var(--ink);
  box-shadow: 3px 3px 0 rgba(11,30,58,0.10);
}

/* Toggle pair used by the feedback accept/reject */
.btn-toggle {
  padding: 0.5rem 0.9rem;
  background: var(--paper);
  border: 1px solid var(--ink);
  color: var(--ink-soft);
  box-shadow: none;
  letter-spacing: 0.1em;
}
.btn-toggle.active {
  background: var(--ink);
  color: var(--acid);
  box-shadow: 3px 3px 0 var(--acid);
}

.btn-sm  { padding: 0.4rem 0.75rem; font-size: 0.72rem; letter-spacing: 0.12em; }
.btn-xs  { padding: 0.28rem 0.55rem; font-size: 0.66rem; letter-spacing: 0.10em; box-shadow: 2px 2px 0 rgba(11,30,58,0.15); }
.btn-lg  { padding: 0.85rem 1.4rem; font-size: 0.86rem; letter-spacing: 0.16em; }

.btn[disabled], .btn:disabled { opacity: 0.45; pointer-events: none; }

/* -----------------------------------------------------------------------------
 * 7. Inputs
 * -------------------------------------------------------------------------- */
.input {
  display: block;
  width: 100%;
  font-family: var(--f-body);
  font-size: 1rem;
  padding: 0.7rem 0.85rem;
  background: var(--paper);
  border: 1px solid var(--ink);
  color: var(--ink);
  box-shadow: inset 0 1px 0 rgba(11,30,58,0.05);
  transition: border-color .15s, box-shadow .15s;
}
.input:focus {
  border-color: var(--terracotta);
  box-shadow: inset 0 1px 0 rgba(11,30,58,0.05),
              0 0 0 3px rgba(201,80,43,0.18);
  outline: none;
}
.input.mono {
  font-family: var(--f-mono);
  font-size: 0.9rem;
  letter-spacing: 0.02em;
}
/* .input.ruled — textarea with faint horizontal lines (lab notebook feel) */
.input.ruled {
  min-height: 140px;
  resize: vertical;
  line-height: 1.75;
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0, transparent 27px,
    var(--rule) 27px, var(--rule) 28px
  );
  background-attachment: local;
  background-position: 0 0.35rem;
}
/* .input.caveat — used in the drawer comment composer */
.input.caveat {
  font-family: var(--f-hand);
  font-size: 1.35rem;
  line-height: 1.25;
  padding: 0.5rem 0.7rem;
  border-style: dashed;
  color: var(--ink);
}
.input.caveat::placeholder { color: var(--muted); font-style: italic; }

/* Screen-reader-only file input (dropzones use a hidden <input>) */
.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* -----------------------------------------------------------------------------
 * 8. Cards (universal pinned-paper look) + fade-in stagger
 * -------------------------------------------------------------------------- */
.card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--ink);
  padding: 1.4rem 1.6rem;
  box-shadow: var(--shadow-soft);
  transition: transform .2s ease, box-shadow .2s ease;
}
.card::before {
  /* inner rule line — the "second stroke" of a notebook card */
  content: '';
  position: absolute;
  inset: 4px;
  border: 1px solid var(--rule);
  pointer-events: none;
}
.card-sub {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 0.9rem 1.05rem;
  position: relative;
}

.fade-in {
  animation: fadeUp .5s ease both;
  animation-fill-mode: both;
}

/* Utility row / stack helpers */
.row-end { display: flex; justify-content: flex-end; gap: 0.6rem; margin-top: 0.9rem; }

/* -----------------------------------------------------------------------------
 * 9. Dashboard
 * -------------------------------------------------------------------------- */
.dash-head { margin-bottom: 1.8rem; }
.dash-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.75rem;
}

.project-card {
  background: var(--paper);
  border: 1px solid var(--ink);
  padding: 1.4rem 1.5rem 1.3rem;
  box-shadow: var(--shadow-soft);
  position: relative;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: transform .2s ease, box-shadow .2s ease;
  cursor: default;
}
.project-card:hover {
  transform: translateY(-4px) rotate(0deg) !important;
  box-shadow: var(--shadow-lift);
}
.project-card::before {
  /* red-tape header stripe — feels like a lab folder */
  content: '';
  position: absolute;
  top: -8px; left: 20px;
  width: 46px; height: 12px;
  background: rgba(201,80,43,0.72);
  transform: rotate(-6deg);
  box-shadow: 0 3px 6px rgba(11,30,58,0.25);
}
.pc-head {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--muted);
  text-transform: uppercase;
}
.pc-updated { margin-left: auto; }
.pc-name {
  font-family: var(--f-display);
  font-style: italic;
  font-weight: 600;
  font-size: 1.55rem;
  line-height: 1.1;
  color: var(--ink);
  padding-right: 2rem;
}
.pc-desc {
  color: var(--ink-soft);
  font-size: 0.98rem;
  flex: 1;
}
.pc-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--rule);
}

/* status dots */
.status-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--muted);
  display: inline-block;
  border: 1px solid var(--ink);
  flex-shrink: 0;
}
.status-running,
.status-dot.status-running {
  background: var(--acid);
  box-shadow: 0 0 0 2px var(--ink), 0 0 12px var(--acid-glow);
  animation: pulse 1.4s ease-in-out infinite;
}
.status-ready,
.status-dot.status-ready         { background: var(--fern); }
.status-draft,
.status-dot.status-draft         { background: var(--paper-deep); }
.status-accepted,
.status-dot.status-accepted      { background: var(--terracotta); }
.status-champion_ready,
.status-dot.status-champion_ready { background: var(--acid); box-shadow: 0 0 0 2px var(--ink); }
.status-failed,
.status-dot.status-failed        { background: var(--terracotta); }

/* the "+ new project" tile */
.new-project-tile {
  border: 0;
  background: transparent;
  padding: 0;
  min-height: 220px;
  box-shadow: none;
  display: flex;
  flex-direction: column;
}
.new-project-tile::before { display: none; }
.new-project-tile .np-cta {
  flex: 1;
  border: 0;
  background: transparent;
  background-image: var(--dashed-ink);
  padding: 1.4rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
  text-align: left;
  font-family: var(--f-display);
  font-style: italic;
  color: var(--ink);
  transition: background-color .18s;
}
.new-project-tile .np-cta:hover { background-color: rgba(212,255,58,0.14); }
.np-plus {
  font-family: var(--f-mono);
  font-style: normal;
  font-size: 1.8rem;
  color: var(--terracotta);
  line-height: 1;
}
.np-label {
  font-family: var(--f-display);
  font-style: italic;
  font-size: 1.55rem;
  color: var(--ink);
}
.new-project-tile .np-form {
  display: none;
  padding: 1.2rem 1.4rem;
  flex-direction: column;
  gap: 0.6rem;
  background: var(--paper);
  border: 1px solid var(--ink);
  box-shadow: var(--shadow-soft);
}
.new-project-tile.expanded .np-cta  { display: none; }
.new-project-tile.expanded .np-form { display: flex; }
.np-form label {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 0.35rem;
}

/* -----------------------------------------------------------------------------
 * 10. Setup view
 * -------------------------------------------------------------------------- */
.zone-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.6rem;
  margin-top: 1.25rem;
  margin-bottom: 1.6rem;
}

.dropzone {
  position: relative;
  padding: 1.4rem 1.5rem 1.5rem;
  background: var(--paper);
  border: 1px solid transparent;              /* real border invisible; image supplies dashes */
  background-image: var(--dashed-ink);
  background-repeat: no-repeat;
  background-size: 100% 100%;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  transition: transform .18s ease, background-color .18s ease;
}
.dropzone::before { display: none; }           /* override .card inner rule */
.dropzone.drag-over {
  background-image: var(--dashed-acid);
  background-color: rgba(212,255,58,0.14);
  transform: scale(1.005);
}
.dropzone-backbone { }
.dropzone-newtech  { }

.dz-head {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}
.dz-head h3 {
  font-family: var(--f-display);
  font-style: italic;
  font-size: 1.35rem;
  color: var(--ink);
  letter-spacing: 0.01em;
  text-transform: none;
}
.dz-cta {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding-top: 0.7rem;
  border-top: 1px dashed var(--rule);
}
.dz-drop-hint {
  font-family: var(--f-hand);
  font-size: 1.2rem;
  color: var(--terracotta);
  transform: rotate(-1deg);
}

/* per-file card inside a dropzone list */
.ref-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.ref-file {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--rule);
  background: var(--paper-shadow);
  box-shadow: 1px 2px 0 rgba(11,30,58,0.06);
  transform: rotate(-0.3deg);
}
.ref-file:nth-child(2n) { transform: rotate(0.25deg); }
.ref-file-icon {
  width: 34px; height: 42px;
  display: grid; place-items: center;
  font-family: var(--f-mono);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--paper);
  background: var(--terracotta);
  border: 1px solid var(--ink);
  box-shadow: 2px 2px 0 var(--ink);
  transform: rotate(-3deg);
  flex-shrink: 0;
}
.ref-file-info { flex: 1; min-width: 0; }
.ref-file-name {
  font-family: var(--f-mono);
  font-size: 0.86rem;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ref-file-meta {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.06em;
}
.ref-file-actions { display: flex; gap: 0.35rem; }

.upload-progress {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
  padding: 0.4rem 0.6rem;
  border: 1px dashed var(--terracotta-soft);
  background: rgba(212,255,58,0.15);
}

/* goal card + constraints */
.goal-card {
  padding: 1.5rem 1.65rem;
  margin-bottom: 1.5rem;
}
.goal-area { min-height: 140px; }
.constraints { padding: 1.2rem 1.4rem; margin-bottom: 1.5rem; }
.constraints summary {
  cursor: pointer;
  font-family: var(--f-display);
  font-style: italic;
  font-size: 1.2rem;
  color: var(--ink);
  list-style: none;
  padding: 0.15rem 0 0.6rem;
  border-bottom: 1px dashed var(--rule);
  margin-bottom: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.constraints summary::-webkit-details-marker { display: none; }
.constraints summary::before {
  content: '+';
  font-family: var(--f-mono);
  color: var(--terracotta);
  font-size: 1.2rem;
}
.constraints[open] summary::before { content: '−'; }
.constraints-body {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.constraints-body label {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.sticky-launch {
  position: sticky;
  bottom: 1rem;
  padding-top: 1rem;
  margin-top: 1.5rem;
  z-index: 5;
}

/* -----------------------------------------------------------------------------
 * 10b. Oligo Inventory (setup-time master list of chemistry ingredients)
 *
 * The oligo bank is the "ingredients" block at the top of a lab notebook page:
 * a card containing an inline list of paper sub-cards, each one an editable
 * oligo. Each sub-card carries a left-edge color bar keyed to its role, a
 * slight alternating tilt, and a motif-strip visualization slot beneath the
 * raw sequence input.
 * -------------------------------------------------------------------------- */
.oligo-bank {
  padding: 1.4rem 1.6rem 1.5rem;
  margin-bottom: 1.5rem;
}
.oligo-bank-head { margin-bottom: 1rem; }
.oligo-bank-head h2 {
  font-family: var(--f-display);
  font-style: italic;
  font-size: 1.55rem;
  color: var(--ink);
  margin: 0 0 0.3rem;
  line-height: 1.1;
}
.oligo-bank-head .margin-note { margin: 0; max-width: 62ch; }

.oligo-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1rem;
}
.oligo-empty {
  padding: 1rem 0.75rem;
  text-align: center;
  color: var(--muted);
}

/* --- single row (paper sub-card) --------------------------------------- */
.oligo-row {
  position: relative;
  padding: 0.85rem 1rem 1rem 1.35rem;   /* extra left pad for the color bar */
  background: var(--paper);
  border: 1px solid var(--rule);
  box-shadow: 1px 2px 0 rgba(11,30,58,0.06);
  transition: transform .18s ease, box-shadow .18s ease;
}
.oligo-row::before {
  /* Left-edge color bar — role-keyed via [data-role]. Default = muted. */
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 6px;
  background: var(--muted);
}
.oligo-row[data-role="capture"]::before        { background: var(--acid); }
.oligo-row[data-role="cycling-primer"]::before { background: var(--terracotta); }
.oligo-row[data-role="barcode-donor"]::before  { background: var(--rust); }
.oligo-row[data-role="helper"]::before         { background: var(--fern); }
.oligo-row[data-role="splint"]::before         { background: var(--ink-soft); }
.oligo-row[data-role="index"]::before          { background: var(--terracotta-soft); }
.oligo-row[data-role="other"]::before          { background: var(--muted); }

.oligo-row:hover {
  transform: rotate(0deg) translateY(-1px);
  box-shadow: 2px 4px 0 rgba(11,30,58,0.10);
}

.oligo-row-head {
  display: grid;
  grid-template-columns: 1.6fr 1fr auto;
  gap: 0.6rem;
  align-items: center;
  margin-bottom: 0.55rem;
}
.oligo-row-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}
.oligo-row-body {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.oligo-row-viz {
  min-height: 44px;
  padding: 0.35rem 0;
  border-top: 1px dashed var(--rule);
  padding-top: 0.55rem;
}

/* --- field styling ---------------------------------------------------- */
.oligo-name {
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: 0.98rem;
  letter-spacing: 0.01em;
  color: var(--ink);
  background: transparent;
  border: none;
  border-bottom: 1px dashed var(--rule);
  padding: 0.25rem 0.15rem;
  border-radius: 0;
}
.oligo-name:focus {
  outline: none;
  border-bottom-color: var(--terracotta);
  background: rgba(212,255,58,0.08);
}
.oligo-role {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.35rem 0.55rem;
  background: var(--paper-shadow);
  border: 1px solid var(--rule);
  color: var(--ink-soft);
}
.oligo-purpose {
  font-family: var(--f-serif, 'Newsreader', Georgia, serif);
  font-style: italic;
  font-size: 0.95rem;
  line-height: 1.35;
  color: var(--ink-soft);
  background: transparent;
  border: none;
  border-left: 2px solid var(--rule);
  padding: 0.15rem 0.6rem;
  resize: none;
  min-height: 1.4rem;
  overflow: hidden;
}
.oligo-purpose:focus {
  outline: none;
  border-left-color: var(--terracotta);
  background: rgba(212,255,58,0.06);
}
.oligo-sequence {
  font-family: var(--f-mono);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink);
  background: var(--paper-shadow);
  border: 1px solid var(--rule);
  padding: 0.5rem 0.6rem;
  word-break: break-all;
}
.oligo-sequence:focus {
  outline: none;
  border-color: var(--terracotta);
  box-shadow: 0 0 0 2px rgba(201,80,43,0.15);
}

/* --- actions ---------------------------------------------------------- */
.btn-del-oligo {
  width: 26px; height: 26px;
  display: grid; place-items: center;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--muted);
  font-family: var(--f-mono);
  font-size: 1.15rem;
  line-height: 1;
  cursor: pointer;
  transition: color .15s ease, background .15s ease, border-color .15s ease, transform .15s ease;
}
.btn-del-oligo:hover {
  color: var(--paper);
  background: var(--terracotta);
  border-color: var(--terracotta);
  transform: rotate(6deg);
}
.oligo-actions {
  display: flex;
  justify-content: flex-start;
  padding-top: 0.4rem;
  border-top: 1px dashed var(--rule);
}
.btn-add-oligo {
  font-family: var(--f-mono);
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  text-transform: lowercase;
}

@media (max-width: 720px) {
  .oligo-row-head {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }
  .oligo-row-actions { justify-content: flex-end; }
}

/* PDF preview modal */
.pdf-overlay { padding: 3rem 1rem; }
.pdf-modal {
  width: min(94vw, 900px);
  height: min(88vh, 900px);
  padding: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.pdf-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.9rem;
  border-bottom: 1px solid var(--ink);
  background: var(--paper-shadow);
}
.pdf-iframe { flex: 1; border: 0; background: white; }

/* -----------------------------------------------------------------------------
 * 11. Run view — agents + phase strip + progress + log
 * -------------------------------------------------------------------------- */
.run-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1.15fr);
  gap: 1.6rem;
  margin-top: 1rem;
  align-items: flex-start;
}
.run-left, .run-right {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.run-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.4rem;
}
.run-head-actions { display: flex; gap: 0.5rem; align-items: center; }
.btn-stop {
  background: transparent;
  color: var(--terracotta);
  border: 1.4px solid var(--terracotta);
  padding: 0.35rem 0.9rem;
}
.btn-stop:hover:not(:disabled) { background: var(--terracotta); color: var(--paper); }
.btn-restart { padding: 0.35rem 0.9rem; }
.btn-stop:disabled, .btn-restart:disabled { opacity: 0.35; cursor: not-allowed; }
.is-primary-glow {
  box-shadow: 0 0 0 3px var(--acid-glow);
  animation: pa-pulse 1.4s ease-in-out infinite;
}
@keyframes pa-pulse {
  0%, 100% { box-shadow: 0 0 0 3px var(--acid-glow); }
  50%      { box-shadow: 0 0 0 6px var(--acid-glow); }
}
.agents-title { margin-bottom: 0.15rem; }

/* Agents panel container. Holds either the <object class="agents-svg"> or the
 * .agents-fallback grid if the SVG asset is missing. */
.agents-panel {
  padding: 1.2rem;
  min-height: 380px;
  position: relative;
  background:
    radial-gradient(circle at 50% 40%, rgba(212,255,58,0.05) 0%, transparent 60%),
    var(--paper);
}
.agents-svg {
  width: 100%;
  height: auto;
  min-height: 320px;
  display: block;
}

/* Fallback tile grid — one card per agent when SVG doesn't load. */
.agents-fallback {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem;
  padding: 0.4rem 0.2rem;
}
.agent-tile {
  padding: 0.75rem 0.6rem 0.6rem;
  border: 1px solid var(--ink);
  background: var(--paper-shadow);
  text-align: center;
  transition: opacity .3s, transform .3s, filter .3s;
  opacity: 0.5;
  transform: rotate(-0.5deg);
  position: relative;
}
.agent-tile:nth-child(2n) { transform: rotate(0.5deg); }
.agent-blob {
  width: 42px; height: 42px;
  margin: 0 auto 0.4rem;
  border-radius: 46% 54% 44% 56% / 52% 44% 56% 48%;
  background: var(--paper);
  border: 1.5px solid var(--ink);
  box-shadow: inset -3px -4px 0 rgba(11,30,58,0.1);
}
.agent-label {
  font-family: var(--f-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  line-height: 1.2;
}

/* per-state visuals shared by fallback tiles AND (via classList) by <g> nodes
   inside the loaded agents.svg. Note: styles on classes inside the loaded SVG
   only take effect if the SVG file has its own stylesheet; we still name the
   selectors for parity. */
.agent-tile.idle, .agents-svg [class~="idle"]        { opacity: 0.45; }
.agent-tile.active, .agents-svg [class~="active"] {
  opacity: 1;
  filter: drop-shadow(0 0 12px var(--acid-glow));
  animation: bob 2.2s ease-in-out infinite;
}
.agent-tile.done, .agents-svg [class~="done"] {
  opacity: 0.9;
  filter: drop-shadow(0 0 4px rgba(76,106,82,0.45));
}
.agent-tile.done .agent-blob { background: var(--fern); border-color: var(--fern); }
.agent-tile.active .agent-blob {
  background: var(--acid);
  box-shadow: 0 0 0 2px var(--ink), 0 0 14px var(--acid-glow);
}
.agent-tile.skipped, .agents-svg [class~="skipped"] {
  opacity: 0.2;
  filter: grayscale(1);
}
.agent-tile.skipped::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top right,
    transparent 47%, var(--terracotta) 48%, var(--terracotta) 52%, transparent 53%);
  pointer-events: none;
}

/* Explicit SVG selectors — see report */
object.agents-svg { background: transparent; }

/* Phase strip */
.phase-strip {
  position: relative;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.35rem;
  padding: 0.85rem 0.5rem 0.4rem;
  margin-top: 0.25rem;
}
.phase-strip::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 8%; right: 8%;
  height: 1px;
  background: var(--ink);
}
.phase-dot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--f-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  position: relative;
  z-index: 1;
}
.phase-mark {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--paper);
  border: 1.5px solid var(--ink);
}
.phase-label { text-align: center; }
.phase-dot.past { color: var(--ink); }
.phase-dot.past .phase-mark { background: var(--fern); }
.phase-dot.current { color: var(--ink); font-weight: 700; }
.phase-dot.current .phase-mark {
  background: var(--acid);
  box-shadow: 0 0 0 3px var(--paper), 0 0 12px var(--acid-glow);
  animation: pulse 1.4s ease-in-out infinite;
}

/* Progress bar */
.progress-bar {
  position: relative;
  height: 22px;
  background: var(--paper-shadow);
  border: 1px solid var(--ink);
  overflow: hidden;
  box-shadow: inset 0 2px 0 rgba(11,30,58,0.08);
}
.progress-fill {
  height: 100%;
  width: 0%;
  background:
    repeating-linear-gradient(-38deg,
      var(--acid) 0 8px, #b7e02f 8px 16px);
  transition: width .5s ease;
  box-shadow: 0 0 12px var(--acid-glow);
}
.progress-bar::after {
  /* quarter-tick marks */
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(to right,
      transparent 0, transparent calc(25% - 1px), var(--ink) calc(25% - 1px), var(--ink) 25%, transparent 25%,
      transparent calc(50% - 1px), var(--ink) calc(50% - 1px), var(--ink) 50%, transparent 50%,
      transparent calc(75% - 1px), var(--ink) calc(75% - 1px), var(--ink) 75%, transparent 75%);
  opacity: 0.35;
}

/* Score tile */
.score-tile {
  padding: 0.9rem 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  transform: rotate(-0.5deg);
}
.score-title { margin: 0; }
.score-value {
  font-family: var(--f-display);
  font-style: italic;
  font-weight: 600;
  font-size: 2.2rem;
  color: var(--ink);
  line-height: 1;
}
.score-gate {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.score-gate.ok   { color: var(--fern); }
.score-gate.warn { color: var(--terracotta); }

/* Log pane */
.log-wrap {
  border: 1px solid var(--ink);
  background: var(--ink);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}
.log-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.4rem 0.9rem;
  background: rgba(0,0,0,0.25);
  border-bottom: 1px solid rgba(212,255,58,0.25);
  color: var(--acid);
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.log-pane {
  min-height: 260px;
  max-height: 460px;
  overflow-y: auto;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: #d9e2f3;
  font-family: var(--f-mono);
  font-size: 0.78rem;
  line-height: 1.55;
}
.log-line {
  display: flex;
  gap: 0.55rem;
  padding: 0.1rem 0;
  animation: typewriter-line .3s ease both;
}
.log-bullet { color: var(--acid); flex-shrink: 0; }
.log-ts     { color: rgba(217,226,243,0.45); flex-shrink: 0; font-size: 0.72rem; }
.log-msg    { flex: 1; word-break: break-word; }
.log-info   .log-bullet { color: var(--acid); }
.log-warn   .log-bullet { color: var(--terracotta-soft); }
.log-warn   .log-msg    { color: var(--terracotta-soft); }
.log-error  .log-bullet { color: #ff7c66; }
.log-error  .log-msg    { color: #ff7c66; }

/* Friendly mode: warmer typeface + a touch more air between lines so the
 * distilled events read like lab-notebook margin notes, not a debug feed. */
.log-pane.friendly {
  font-family: var(--f-body, var(--f-mono));
  font-size: 0.82rem;
  line-height: 1.65;
}
.log-pane.friendly .log-line { padding: 0.18rem 0; }

/* "raw" dev-mode toggle sits in the log header, opt-in by default. */
.log-dev-toggle {
  background: transparent;
  border: 1px solid rgba(212,255,58,0.3);
  color: var(--acid);
  font-family: var(--f-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 0.12rem 0.5rem;
  border-radius: 2px;
  cursor: pointer;
  margin-left: 0.6rem;
  transition: background 120ms, color 120ms;
}
.log-dev-toggle:hover {
  background: rgba(212,255,58,0.12);
}

/* live blinking dot in log header */
.blink { animation: pulse 1.6s ease-in-out infinite; }
.acid-dot {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--acid);
  box-shadow: 0 0 8px var(--acid-glow);
}

/* -----------------------------------------------------------------------------
 * 12. Protocol view — flowchart + drawer
 * -------------------------------------------------------------------------- */
.protocol-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem;
  padding: 0.9rem 1.15rem;
  margin: 0.75rem 0 1.2rem;
}
.proto-top-l {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.proto-session {
  font-family: var(--f-mono);
  font-size: 0.82rem;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--rule);
  background: var(--paper-shadow);
  color: var(--ink);
}
.gate-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-left: auto;
}

.proto-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.4rem;
}
.motivation, .overview {
  padding: 1.2rem 1.4rem;
}
.motivation p, .overview p {
  font-family: var(--f-body);
  font-style: italic;
  color: var(--ink-soft);
}
.motivation { border-left: 3px solid var(--terracotta); }
.overview   { border-left: 3px solid var(--fern); }

/* Flowchart strip — horizontal scroll */
.flow-wrap { margin-bottom: 1.4rem; }
.flow-strip {
  position: relative;
  padding: 1.4rem 0.75rem 1.8rem;
  overflow-x: auto;
  background:
    linear-gradient(var(--grid) 1px, transparent 1px) 0 0 / 32px 32px,
    linear-gradient(90deg, var(--grid) 1px, transparent 1px) 0 0 / 32px 32px,
    var(--paper-shadow);
  border: 1px solid var(--ink);
  box-shadow: var(--shadow-soft);
  display: flex;
  gap: 2.5rem;
  align-items: stretch;
  min-height: 220px;
}
.flow-arrows {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  animation: dash-scroll 12s linear infinite;
}
.flow-arrows path { animation: none; }

/* Block card — the pinned-notecard of one protocol step */
.block {
  position: relative;
  z-index: 2;
  width: 260px;
  min-height: 190px;
  padding: 1rem 1.05rem 0.9rem 1.3rem;
  background: var(--paper);
  border: 1px solid var(--ink);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  transition: transform .18s ease, box-shadow .18s ease;
  flex-shrink: 0;
}
.block::before {
  content: '';
  position: absolute;
  top: 0; bottom: 0; left: 0;
  width: 7px;
  background: var(--ink);
}
.block:nth-child(3n+1) { transform: rotate(-0.6deg); }
.block:nth-child(3n+2) { transform: rotate(0.4deg); }
.block:nth-child(3n)   { transform: rotate(-0.15deg); }
.block:hover {
  transform: translateY(-4px) rotate(0deg);
  box-shadow: var(--shadow-lift);
}
.block-risky::before      { background: var(--terracotta); }
.block-infeasible::before { background: var(--rust); }
.block-infeasible {
  background: rgba(201,80,43,0.06);
}

.block-head {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.block-num {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  padding: 0.18rem 0.4rem;
  background: var(--ink);
  color: var(--acid);
  letter-spacing: 0.1em;
}
.block-title {
  font-family: var(--f-display);
  font-style: italic;
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--ink);
  line-height: 1.15;
  letter-spacing: 0;
  text-transform: none;
}
.block-preview {
  font-family: var(--f-body);
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.block-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding-top: 0.55rem;
  border-top: 1px dashed var(--rule);
}
.block-open {
  font-family: var(--f-hand);
  color: var(--terracotta);
  font-size: 1.15rem;
  transform: rotate(-1.5deg);
}
.block-comments {
  cursor: default;
}

/* Reagents rail */
.reagents-rail {
  padding: 1.1rem 1.35rem;
  margin-bottom: 1.4rem;
}
.reagent-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px,1fr));
  gap: 0.35rem 0.9rem;
  font-family: var(--f-mono);
  font-size: 0.82rem;
  color: var(--ink-soft);
}
.reagent-list li {
  padding: 0.15rem 0 0.15rem 1rem;
  position: relative;
}
.reagent-list li::before {
  content: '·';
  position: absolute; left: 0;
  color: var(--terracotta);
  font-weight: 700;
}

/* -----------------------------------------------------------------------------
 * Reagent index — per-reagent paper cards, grouped by category, with a sticky
 * search / filter / view-mode control strip. Replaces the flat .reagent-list
 * bulk-rail above. Owned by renderReagentIndex() in app.js.
 *
 * Class map:
 *   .reagent-index                  outer <section>
 *   .reagent-index-controls         sticky search + chips + toggle bar
 *   .reagent-search                 text filter input (paper w/ ruled bottom)
 *   .reagent-cats                   row of .cat-chip toggles
 *   .cat-chip / .cat-chip.is-active category filter chip
 *   .reagent-view-toggle            two-button "by reagent | by step" toggle
 *   .reagent-index-groups           grid of category sections
 *   .reagent-cat-group              one category block (header + grid)
 *   .cat-header                     Fraunces italic + hand-annot ×N count
 *   .reagent-card-grid              auto-fill minmax(280px,1fr) card grid
 *   .reagent-card                   one reagent as its own paper card
 *   .reagent-card.is-hidden         filtered out
 *   .reagent-card ::before          left color bar keyed to category
 *   .reagent-name / .reagent-cat-chip / .reagent-card-body
 *   .reagent-oligo-strip            wraps OligoViz.renderOligoStrip
 *   .reagent-volume-hint / .reagent-notes-hint
 *   .reagent-card-usedin            "used in" pill row
 *   .reagent-usedin-label / .reagent-usedin-pill (.is-drawer-open)
 *   .reagent-empty                  Caveat-hand "nothing matches" placeholder
 * -------------------------------------------------------------------------- */
.reagent-index {
  padding: 0;
  margin-bottom: 1.4rem;
  overflow: hidden; /* the color bars on cards must not spill the paper */
}
.reagent-index-controls {
  position: sticky;
  top: 0;
  z-index: 4;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  padding: 0.85rem 1.2rem;
  background: color-mix(in srgb, var(--paper) 92%, var(--paper-shadow) 8%);
  backdrop-filter: blur(6px);
  border-bottom: 1.5px solid var(--ink);
  box-shadow: 0 3px 8px -6px rgba(11,30,58,0.35);
}
.reagent-controls-l {
  display: inline-flex;
  align-items: baseline;
  gap: 0.55rem;
  margin-right: 0.4rem;
}
.reagent-search {
  flex: 1 1 220px;
  min-width: 180px;
  background: transparent;
  border: 0;
  border-bottom: 1.25px solid var(--rule);
  padding: 0.4rem 0.2rem 0.35rem 0.2rem;
  font-family: var(--f-mono);
  font-size: 0.85rem;
  color: var(--ink);
  outline: none;
  transition: border-color .18s ease;
}
.reagent-search:focus { border-bottom-color: var(--ink); }
.reagent-search::placeholder {
  color: var(--muted);
  font-family: var(--f-mono);
  letter-spacing: 0.02em;
}

.reagent-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 0.4rem;
}
.cat-chip {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: color-mix(in srgb, var(--paper) 85%, transparent);
  color: var(--ink-soft);
  cursor: pointer;
  transition: background .15s ease, border-color .15s ease, transform .15s ease;
}
.cat-chip:hover { transform: translateY(-1px); border-color: var(--ink); }
.cat-chip.is-active {
  border-color: var(--ink);
  color: var(--ink);
  box-shadow: inset 0 0 0 1.5px var(--ink);
}
/* Category tints — subtle background per SPEC color map. */
.cat-chip.cat-oligo   { background: color-mix(in srgb, var(--acid)          22%, var(--paper) 78%); color: var(--ink); }
.cat-chip.cat-probe   { background: color-mix(in srgb, var(--fern)          22%, var(--paper) 78%); }
.cat-chip.cat-enzyme  { background: color-mix(in srgb, var(--terracotta)    22%, var(--paper) 78%); }
.cat-chip.cat-buffer  { background: color-mix(in srgb, var(--ink-soft)      14%, var(--paper) 86%); }
.cat-chip.cat-spri    { background: color-mix(in srgb, var(--rust)          22%, var(--paper) 78%); }
.cat-chip.cat-stain   { background: color-mix(in srgb, var(--terracotta-soft) 28%, var(--paper) 72%); }
.cat-chip.cat-mix     { background: color-mix(in srgb, var(--muted)         18%, var(--paper) 82%); }
.cat-chip.cat-other   { background: color-mix(in srgb, var(--rule)          40%, var(--paper) 60%); }

.reagent-view-toggle {
  display: inline-flex;
  border: 1px solid var(--ink);
  border-radius: 999px;
  overflow: hidden;
  margin-left: auto;
}
.reagent-view-toggle button {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.25rem 0.7rem;
  background: transparent;
  color: var(--ink-soft);
  border: 0;
  cursor: pointer;
  transition: background .15s ease, color .15s ease;
}
.reagent-view-toggle button + button { border-left: 1px solid var(--ink); }
.reagent-view-toggle button:hover { background: color-mix(in srgb, var(--ink) 10%, transparent); }
.reagent-view-toggle button.is-active {
  background: var(--ink);
  color: var(--paper);
}

.reagent-index-groups {
  padding: 1rem 1.2rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 1.3rem;
}
.reagent-cat-group.is-hidden { display: none; }
.cat-header {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px dashed var(--rule);
  margin-bottom: 0.6rem;
}
.cat-header .cat-header-name {
  font-family: var(--f-display);
  font-style: italic;
  font-weight: 500;
  font-size: 1.35rem;
  color: var(--ink);
  letter-spacing: -0.005em;
}
.cat-header .cat-count {
  display: inline-block;
  font-family: var(--f-hand);
  font-size: 1.15rem;
  color: var(--terracotta);
  transform: rotate(-2deg);
}

.reagent-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 0.9rem;
}

.reagent-card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 0.75rem 0.85rem 0.7rem 1.1rem;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: transform .18s ease, box-shadow .18s ease;
  overflow: hidden;
}
.reagent-card::before {
  /* physical dye-strip along the left edge */
  content: '';
  position: absolute;
  top: 0; bottom: 0; left: 0;
  width: 6px;
  background: var(--rule);
}
.reagent-card:hover {
  transform: rotate(0.4deg) translateY(-1px);
  box-shadow: var(--shadow-lift);
}
.reagent-card.is-hidden { display: none; }

/* Left-bar color tint per category. */
.reagent-card.cat-oligo::before  { background: var(--acid); box-shadow: 0 0 12px var(--acid-glow); }
.reagent-card.cat-probe::before  { background: var(--fern); }
.reagent-card.cat-enzyme::before { background: var(--terracotta); }
.reagent-card.cat-buffer::before { background: var(--ink-soft); }
.reagent-card.cat-spri::before   { background: var(--rust); }
.reagent-card.cat-stain::before  { background: var(--terracotta-soft); }
.reagent-card.cat-mix::before    { background: var(--muted); }
.reagent-card.cat-other::before  { background: var(--rule); }

.reagent-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.6rem;
}
.reagent-name {
  font-family: var(--f-display);
  font-style: italic;
  font-weight: 500;
  font-size: 1.02rem;
  color: var(--ink);
  line-height: 1.2;
  flex: 1 1 auto;
  word-break: break-word;
}
.reagent-cat-chip {
  flex: 0 0 auto;
  font-family: var(--f-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.12rem 0.45rem;
  border-radius: 999px;
  border: 1px solid var(--rule);
  color: var(--ink);
  background: var(--paper);
  white-space: nowrap;
}
.reagent-cat-chip.cat-oligo   { background: color-mix(in srgb, var(--acid)          25%, var(--paper) 75%); }
.reagent-cat-chip.cat-probe   { background: color-mix(in srgb, var(--fern)          22%, var(--paper) 78%); color: var(--paper); background-color: var(--fern); }
.reagent-cat-chip.cat-enzyme  { background: var(--terracotta); color: var(--paper); }
.reagent-cat-chip.cat-buffer  { background: color-mix(in srgb, var(--ink-soft)      18%, var(--paper) 82%); }
.reagent-cat-chip.cat-spri    { background: var(--rust); color: var(--paper); }
.reagent-cat-chip.cat-stain   { background: var(--terracotta-soft); color: var(--paper); }
.reagent-cat-chip.cat-mix     { background: color-mix(in srgb, var(--muted)         22%, var(--paper) 78%); }
.reagent-cat-chip.cat-other   { background: color-mix(in srgb, var(--rule)          40%, var(--paper) 60%); }

.reagent-card-body {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.reagent-oligo-strip {
  position: relative;
  overflow-x: auto;
  padding: 0.15rem 0.05rem;
  /* subtle shadow hint on the right edge if the strip overflows */
  background:
    linear-gradient(to right, var(--paper) 0%, transparent 6%,
                    transparent 94%, var(--paper) 100%);
}
.reagent-oligo-strip .oligo-strip {
  width: 100%;
  min-width: 0;
}
.reagent-oligo-strip::-webkit-scrollbar { height: 6px; }
.reagent-oligo-strip::-webkit-scrollbar-thumb {
  background: var(--rule);
  border-radius: 3px;
}
.reagent-volume-hint {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  color: var(--terracotta);
  letter-spacing: 0.02em;
}
.reagent-volume-hint .reagent-vol-label {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.65rem;
  margin-right: 0.35rem;
}
.reagent-notes-hint {
  font-family: var(--f-hand);
  font-style: italic;
  font-size: 0.98rem;
  color: var(--muted);
  line-height: 1.25;
  transform: rotate(-0.4deg);
}

.reagent-card-usedin {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.3rem 0.4rem;
  margin-top: 0.15rem;
  padding-top: 0.5rem;
  border-top: 1px dashed var(--rule);
}
.reagent-usedin-label {
  font-family: var(--f-hand);
  color: var(--terracotta);
  font-size: 1rem;
  margin-right: 0.15rem;
  transform: rotate(-1.5deg);
}
.reagent-usedin-pill {
  font-family: var(--f-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  padding: 0.15rem 0.55rem;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: background .15s ease, color .15s ease, transform .15s ease;
}
.reagent-usedin-pill:hover {
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-1px);
}
.reagent-usedin-pill.is-drawer-open {
  background: var(--acid);
  color: var(--ink);
  border-color: var(--ink);
  box-shadow: 0 0 0 3px var(--acid-glow);
}

.reagent-empty {
  font-family: var(--f-hand);
  color: var(--muted);
  font-size: 1.1rem;
  padding: 0.6rem 0.2rem;
  transform: rotate(-0.8deg);
}
.reagent-empty.is-hidden { display: none; }

@media (max-width: 640px) {
  .reagent-index-controls {
    flex-direction: column;
    align-items: stretch;
    gap: 0.55rem;
  }
  .reagent-view-toggle { margin-left: 0; align-self: flex-start; }
  .reagent-card-grid { grid-template-columns: 1fr; }
}

/* Feedback panel */
.feedback-panel { margin-top: 1.5rem; padding: 1.5rem 1.7rem; }
.fb-row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px dashed var(--rule);
  align-items: flex-start;
}
.fb-row:last-child { border-bottom: 0; }
.fb-row > label {
  font-family: var(--f-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding-top: 0.35rem;
}
.toggle-row { display: flex; gap: 0.4rem; }
.changes-wrap { display: flex; flex-direction: column; gap: 0.5rem; }
.changes-list { display: flex; flex-direction: column; gap: 0.4rem; }
.change-row {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}
.change-row .input { flex: 1; }

/* Drawer — right-slide detail on block click */
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11,30,58,0.35);
  display: flex;
  justify-content: flex-end;
  z-index: 60;
  animation: fadeUp .18s ease both;
}
.drawer {
  width: min(560px, 96vw);
  height: 100dvh;
  max-height: 100dvh;
  background: var(--paper);
  border-left: 1px solid var(--ink);
  box-shadow: -12px 0 24px rgba(11,30,58,0.15);
  transform: translateX(105%);
  transition: transform .28s cubic-bezier(.4,.15,.2,1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
/* Middle scroll region: everything between drawer-head and comment-composer.
 * Uses min-height:0 so it can actually shrink inside the flex column,
 * and overscroll-behavior:contain so wheel/touch doesn't bleed to the page. */
.drawer-scroll {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  /* subtle top scroll-hint: a faint gradient fixed at the top edge that
   * only reads once content has scrolled underneath it. */
  background:
    linear-gradient(var(--paper) 30%, rgba(253,250,242,0)) top / 100% 12px no-repeat,
    linear-gradient(rgba(11,30,58,0.08), rgba(11,30,58,0)) top / 100% 8px no-repeat local,
    var(--paper);
}
.drawer.open { transform: translateX(0); }
.drawer-head {
  flex: 0 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.05rem 1.4rem;
  background: var(--paper-shadow);
  border-bottom: 1px solid var(--ink);
  gap: 0.5rem;
}
.drawer-title {
  padding: 0.9rem 1.4rem 0.35rem;
  font-family: var(--f-display);
  font-style: italic;
  font-size: 1.75rem;
  color: var(--ink);
  line-height: 1.05;
}
.drawer-body {
  padding: 0.9rem 1.4rem 1rem;
  font-family: var(--f-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink);
}
.drawer-body p { margin-bottom: 0.85rem; }

.drawer-chem, .drawer-experts, .drawer-evidence, .drawer-comments {
  margin: 0.9rem 1.4rem;
}
.drawer-chem {
  border-left: 3px solid var(--terracotta);
  background: rgba(201,80,43,0.05);
  padding: 0.85rem 1rem;
}
.drawer-chem.risky      { border-left-color: var(--terracotta); background: rgba(201,80,43,0.05); }
.drawer-chem.infeasible { border-left-color: var(--rust); background: rgba(156,93,42,0.08); }
.drawer-chem h5, .drawer-experts h5, .drawer-evidence h5 { margin: 0.6rem 0 0.3rem; }
.drawer-chem ul, .drawer-experts ul, .drawer-evidence ul {
  padding-left: 0.9rem;
}
.drawer-chem li, .drawer-experts li, .drawer-evidence li {
  position: relative;
  padding: 0.2rem 0 0.2rem 0.9rem;
  font-size: 0.92rem;
  border-bottom: 1px dotted var(--rule);
}
.drawer-chem li::before      { content: '×'; position: absolute; left: 0; color: var(--terracotta); }
.drawer-experts li::before   { content: '§'; position: absolute; left: 0; color: var(--rust); font-family: var(--f-display); }
.drawer-evidence li::before  { content: '⋆'; position: absolute; left: 0; color: var(--terracotta); }
.drawer-evidence li { font-family: var(--f-mono); font-size: 0.8rem; color: var(--ink-soft); }

/* -----------------------------------------------------------------------------
 * 13. Comments (in the drawer)
 * -------------------------------------------------------------------------- */
.comments-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 0.7rem;
}
.comment {
  position: relative;
  padding: 0.75rem 0.9rem 0.75rem 1.9rem;
  transform: rotate(-0.25deg);
}
.comment:nth-child(2n) { transform: rotate(0.2deg); }
.comment::before {
  content: '';
  position: absolute;
  left: 10px; top: 12px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--terracotta);
  border: 1px solid var(--ink);
  box-shadow: 0 2px 3px rgba(11,30,58,0.25);
}
.comment.resolved { opacity: 0.55; }
.comment.resolved::before { background: var(--fern); }
.comment.resolved .comment-text {
  text-decoration: line-through;
  text-decoration-color: rgba(11,30,58,0.4);
}
.comment-head {
  display: flex;
  gap: 0.55rem;
  align-items: baseline;
  margin-bottom: 0.3rem;
}
.comment-author {
  font-family: var(--f-hand);
  font-weight: 600;
  color: var(--ink);
  font-size: 1.2rem;
  line-height: 1;
}
.comment-ts {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
}
.comment-text {
  font-family: var(--f-body);
  font-size: 0.98rem;
  line-height: 1.5;
  color: var(--ink-soft);
}

.comment-composer {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.7rem 1.15rem 0.9rem;
  margin: 0;
  border: 0;
  border-top: 1.5px dashed var(--rule);
  background: var(--paper);
  /* pinned at drawer bottom (flex sibling of .drawer-scroll) */
}
/* small scroll-hint above the composer when body is scrollable */
.comment-composer::before {
  content: '···';
  display: block;
  text-align: center;
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.35em;
  color: var(--ink-soft);
  opacity: 0.45;
  margin: -0.35rem 0 0.3rem;
}

.caveat {
  font-family: var(--f-hand);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--ink);
  line-height: 1.1;
}

/* -----------------------------------------------------------------------------
 * 14. Memory view — sparkline + session timeline
 * -------------------------------------------------------------------------- */
.sparkline-card {
  padding: 1.15rem 1.3rem;
  margin-bottom: 1.3rem;
}
.sparkline {
  width: 100%;
  height: 88px;
  background: var(--paper-shadow);
  border: 1px solid var(--rule);
  padding: 0.35rem 0.5rem;
  display: block;
}

.timeline {
  position: relative;
  padding-left: 1.9rem;
}
.timeline::before {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  left: 8px;
  width: 2px;
  background: var(--ink);
}
.session-row {
  position: relative;
  padding: 1.15rem 1.4rem;
  margin-bottom: 1.3rem;
}
.session-row::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 22px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--ink);
}
.session-row:nth-child(2n+1) { transform: rotate(-0.3deg); }
.session-row:nth-child(2n)   { transform: rotate(0.2deg); }
.session-head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 0.55rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px dashed var(--rule);
}
.session-ts {
  color: var(--ink);
  font-family: var(--f-hand);
  font-size: 1.35rem;
}
.session-summary {
  font-family: var(--f-body);
  font-size: 0.98rem;
  color: var(--ink-soft);
  line-height: 1.5;
}
.session-details {
  margin-top: 0.65rem;
  padding-top: 0.55rem;
  border-top: 1px dotted var(--rule);
}
.session-details summary {
  cursor: pointer;
  color: var(--terracotta);
  font-family: var(--f-hand);
  font-size: 1.05rem;
  list-style: none;
}
.session-details summary::-webkit-details-marker { display: none; }
.session-details h5 { margin: 0.75rem 0 0.35rem; }
.session-details ul li {
  padding: 0.2rem 0 0.2rem 0.9rem;
  position: relative;
  font-size: 0.9rem;
}
.session-details ul li::before {
  content: '—';
  position: absolute; left: 0;
  color: var(--rust);
}

/* -----------------------------------------------------------------------------
 * 15. Chips + score badge
 * -------------------------------------------------------------------------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-family: var(--f-mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--ink);
  color: var(--ink);
  background: var(--paper);
  line-height: 1;
}
.chip-ink        { background: var(--ink); color: var(--paper); }
.chip-acid       { background: var(--acid); color: var(--ink); border-color: var(--ink); box-shadow: 1px 1px 0 var(--ink); }
.chip-outline    { background: transparent; color: var(--ink-soft); border-color: var(--rule); }
.chip-fern       { background: var(--fern); color: var(--paper); border-color: var(--fern); }
.chip.chip-round {
  background: var(--ink);
  color: var(--acid);
  border-color: var(--ink);
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.16rem 0.55rem;
  margin-right: 0.3rem;
}
.chip-terracotta { background: var(--terracotta); color: var(--paper); border-color: var(--terracotta); }
.chip-warn       { background: rgba(201,80,43,0.14); color: var(--terracotta); border-color: var(--terracotta); }
.chip-row        { display: flex; flex-wrap: wrap; gap: 0.3rem; margin-top: 0.35rem; }
.chip-mark       { display: inline-block; font-weight: 700; }

/* owner tag on block heads: chip-owner-backbone / -newtech / -common / -custom */
.chip-owner-backbone { color: var(--ink); background: var(--paper-shadow); }
.chip-owner-newtech  { color: var(--terracotta); background: rgba(201,80,43,0.08); border-color: var(--terracotta); }
.chip-owner-common   { color: var(--rust); border-color: var(--rust); }
.chip-owner-custom   { color: var(--fern); border-color: var(--fern); }

/* score badge — inline number chip that inherits accent from `--sc` var */
.score-badge {
  display: inline-flex;
  align-items: baseline;
  gap: 0.3rem;
  font-family: var(--f-display);
  font-style: italic;
  font-weight: 600;
  font-size: 1.05rem;
  padding: 0.25rem 0.65rem;
  color: var(--sc, var(--rust));
  border: 1.5px solid currentColor;
  background: var(--paper);
  line-height: 1;
}

/* -----------------------------------------------------------------------------
 * 16. Toasts + modals + PDF preview
 * -------------------------------------------------------------------------- */
.pa-toasts {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 200;
  max-width: 340px;
}
.toast {
  padding: 0.75rem 0.95rem;
  background: var(--paper);
  border: 1px solid var(--ink);
  border-left: 4px solid var(--ink);
  box-shadow: var(--shadow-soft);
  font-family: var(--f-body);
  font-size: 0.94rem;
  opacity: 0;
  transform: translateX(20px) rotate(-0.5deg);
  transition: opacity .3s ease, transform .3s ease;
}
.toast.visible {
  opacity: 1;
  transform: translateX(0) rotate(-0.5deg);
}
.toast-info  { border-left-color: var(--ink); }
.toast-ok    { border-left-color: var(--fern); }
.toast-warn  { border-left-color: var(--terracotta); }
.toast-error { border-left-color: var(--terracotta); background: rgba(201,80,43,0.08); }

.pa-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11,30,58,0.4);
  display: grid;
  place-items: center;
  z-index: 150;
  animation: fadeUp .18s ease both;
}
.pa-modal {
  width: min(92vw, 460px);
  padding: 1.6rem 1.75rem;
  background: var(--paper);
  border: 1px solid var(--ink);
  box-shadow: 10px 10px 0 rgba(11,30,58,0.22), var(--shadow-lift);
  transform: rotate(-0.4deg);
}
.pa-modal-msg {
  font-family: var(--f-body);
  font-size: 1.05rem;
  color: var(--ink);
  margin-bottom: 1rem;
}
.pa-modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

/* -----------------------------------------------------------------------------
 * 17. Login + 404
 * -------------------------------------------------------------------------- */
.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2.5rem 1.25rem;
}
.login-card {
  width: min(92vw, 420px);
  padding: 2.25rem 2.1rem 1.9rem;
  background: var(--paper);
  border: 1px solid var(--ink);
  box-shadow: 10px 10px 0 var(--acid), var(--shadow-lift);
  transform: rotate(-0.6deg);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}
.login-card::after {
  content: 'RESTRICTED';
  position: absolute;
  top: -14px; right: -18px;
  transform: rotate(6deg);
  background: var(--terracotta);
  color: var(--paper);
  font-family: var(--f-mono);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--ink);
  box-shadow: 2px 2px 0 var(--ink);
}
.login-title {
  font-family: var(--f-display);
  font-style: italic;
  font-weight: 500;
  font-size: 2.4rem;
  color: var(--ink);
  line-height: 1;
  margin-bottom: 0;
}
.login-sub {
  color: var(--ink-soft);
  font-style: italic;
  font-size: 0.98rem;
  margin-bottom: 0.4rem;
}
.login-card .input.mono {
  letter-spacing: 0.25em;
  text-align: center;
}
.login-card .btn { width: 100%; justify-content: center; }
.login-hint {
  font-family: var(--f-hand);
  font-size: 1.15rem;
  color: var(--terracotta);
  text-align: right;
  margin-top: 0.35rem;
}

.notfound {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 3rem 1rem;
}
.notfound h1 {
  font-size: clamp(6rem, 16vw, 12rem);
  font-family: var(--f-display);
  font-style: italic;
  font-weight: 600;
  color: var(--terracotta);
  line-height: 0.9;
}

/* -----------------------------------------------------------------------------
 * 18. Utilities
 * -------------------------------------------------------------------------- */
.mono   { font-family: var(--f-mono); }
.hand   { font-family: var(--f-hand); color: var(--terracotta); font-size: 1.25rem; line-height: 1.15; }
.muted  { color: var(--muted); }
.small  { font-size: 0.85rem; }
.hidden { display: none !important; }
.ok     { color: var(--fern); }
.warn   { color: var(--terracotta); }
.active { /* generic; specific selectors set styling */ }
.expanded { /* new-project-tile.expanded handled above */ }

/* -----------------------------------------------------------------------------
 * 19. Animations
 * -------------------------------------------------------------------------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0);   }
}
@keyframes bob {
  0%, 100% { transform: translateY(0) rotate(-0.5deg); }
  50%      { transform: translateY(-4px) rotate(0.5deg); }
}
@keyframes pulse {
  0%, 100% { transform: scale(1);    opacity: 1;    box-shadow: 0 0 0 2px var(--ink), 0 0 12px var(--acid-glow); }
  50%      { transform: scale(1.25); opacity: 0.75; box-shadow: 0 0 0 2px var(--ink), 0 0 22px var(--acid-glow); }
}
@keyframes ink-blot {
  0%   { transform: scale(0.6); opacity: 0; }
  60%  { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(1);    opacity: 1; }
}
@keyframes typewriter-line {
  from { opacity: 0; transform: translateX(-4px); }
  to   { opacity: 1; transform: translateX(0);    }
}
@keyframes dash-scroll {
  from { background-position: 0 0; }
  to   { background-position: 120px 0; }
}
@keyframes sway {
  0%, 100% { transform: rotate(-0.6deg); }
  50%      { transform: rotate(0.6deg); }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* -----------------------------------------------------------------------------
 * 20. Responsive
 * -------------------------------------------------------------------------- */
@media (max-width: 1180px) {
  .run-grid { grid-template-columns: 1fr; }
  .drawer   { width: 96vw; }
}
@media (max-width: 900px) {
  .view { padding: 1.5rem 1rem 3rem; }
  .zone-row   { grid-template-columns: 1fr; }
  .proto-meta { grid-template-columns: 1fr; }
  .fb-row     { grid-template-columns: 1fr; }
  .fb-row > label { padding-top: 0; }
  .dash-grid  { grid-template-columns: 1fr; }
  .agents-fallback { grid-template-columns: repeat(2, 1fr); }
  .phase-strip {
    grid-template-columns: repeat(4, 1fr);
    gap: 0.65rem 0.35rem;
  }
  .phase-strip::before { display: none; }
  .block { width: 240px; }
  .topbar { flex-wrap: wrap; padding: 0.6rem 0.9rem; }
  .crumbs { order: 3; width: 100%; padding-top: 0.4rem; border-top: 1px dashed var(--rule); }
}
@media (max-width: 560px) {
  .view { padding: 1.15rem 0.75rem 3rem; }
  .display { font-size: 2rem; }
  .lede    { font-size: 1rem; }
  .block   { width: 100%; }
  .flow-strip { flex-direction: column; gap: 1rem; }
  .agents-fallback { grid-template-columns: 1fr; }
  .pa-modal { padding: 1.2rem 1.15rem; }
  .drawer   { width: 100vw; }
  .brand-name { display: none; }
}

/* -----------------------------------------------------------------------------
 * 21. Print (protocol export)
 * -------------------------------------------------------------------------- */
@media print {
  body { background: white; box-shadow: none; }
  .topbar, .pa-toasts, .drawer-overlay, .comment-composer, .sticky-launch { display: none !important; }
  .view { padding: 0; }
  .card, .block, .session-row, .project-card { box-shadow: none; transform: none !important; break-inside: avoid; }
  .flow-strip { flex-direction: column; gap: 1rem; overflow: visible; }
  .flow-arrows { display: none; }
}

/* =============================================================================
 * 22. Persistent chrome — topbar, sidebar, footer, boot splash, crumbs
 *
 * These rules cover the class taxonomy declared in index.html (data-app-chrome
 * markers) and the elements JS injects into [data-nav] and [data-sidebar-list].
 * Style priority: characterful (Fraunces italic, Caveat marginalia, hand-drawn
 * dashed rules) over generic SaaS uniformity.
 * ========================================================================== */

/* ---- Body layout envelope (holds topbar + sidebar + view + footer) ---- */
body {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  grid-template-rows: auto 1fr auto;
  grid-template-areas:
    "topbar  topbar"
    "sidebar main"
    "footer  footer";
  min-height: 100vh;
}
body > header.topbar[data-app-chrome] { grid-area: topbar; }
body > aside.sidebar[data-app-chrome] { grid-area: sidebar; }
body > main#view-root                 { grid-area: main; }
body > footer.foot[data-app-chrome]   { grid-area: footer; }
body > aside.sidebar[data-app-chrome][hidden] { display: none; }
body:has(> aside.sidebar[data-app-chrome][hidden]) {
  grid-template-columns: minmax(0, 1fr);
  grid-template-areas:
    "topbar"
    "main"
    "footer";
}

/* ---- Topbar / masthead ---- */
header.topbar[data-app-chrome] {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  padding: 0.85rem 1.4rem 0.85rem 1.4rem;
  background: var(--paper);
  border-bottom: 1.5px solid var(--ink);
  position: sticky;
  top: 0;
  z-index: 40;
  box-shadow:
    0 6px 0 -4px var(--ink),
    0 12px 26px -22px rgba(11,30,58,0.55);
}
header.topbar[data-app-chrome]::before {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px; height: 4px;
  background:
    linear-gradient(90deg,
      transparent 0, transparent 6px,
      var(--ink) 6px, var(--ink) 10px,
      transparent 10px, transparent 20px) 0 0/20px 100% repeat-x;
  opacity: 0.35;
  pointer-events: none;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--ink);
  transform: rotate(-0.4deg);
}
.brand-mark {
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-weight: 800;
  font-size: 2.15rem;
  letter-spacing: -0.02em;
  line-height: 0.9;
  color: var(--ink);
  border-right: 1.5px solid var(--rule);
  padding-right: 0.65rem;
}
.brand-caption {
  display: inline-flex;
  flex-direction: column;
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-size: 1.02rem;
  line-height: 1.05;
  color: var(--ink);
  letter-spacing: 0.005em;
}
.brand-caption-sub {
  font-family: 'Caveat', cursive;
  font-style: normal;
  font-size: 0.95rem;
  color: var(--muted);
  margin-top: 2px;
  letter-spacing: 0.01em;
}
.brand-name { display: none; }

/* ---- Nav pills (injected into [data-nav] by chrome()) ---- */
nav.topnav {
  display: flex;
  gap: 0.15rem;
  align-items: center;
  margin-left: 0.5rem;
  flex-wrap: wrap;
}
.navlink {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem 0.42rem;
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-weight: 500;
  font-size: 1rem;
  color: var(--ink);
  text-decoration: none;
  border: 1.2px solid transparent;
  background: transparent;
  border-radius: 0;
  position: relative;
  transition: transform 0.18s ease, background 0.18s ease, color 0.18s ease;
}
.navlink:hover {
  background: var(--paper-shadow);
  transform: translateY(-1px) rotate(-0.3deg);
}
.navlink.active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  box-shadow: 2px 2px 0 0 var(--acid);
}
.navlink.active::after {
  content: "";
  position: absolute;
  left: 8%; right: 8%; bottom: -4px;
  height: 3px;
  background: var(--acid);
  transform: skewX(-6deg);
}
.navlink-live {
  color: var(--terracotta);
  font-style: italic;
  border-color: color-mix(in srgb, var(--terracotta) 45%, transparent);
}
.navlink-live.active { background: var(--terracotta); color: var(--paper); }
.navlink[hidden] { display: none; }

/* ---- Sign-out button ---- */
.btn-signout {
  margin-left: auto;
  padding: 0.42rem 0.95rem 0.44rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  background: transparent;
  border: 1.2px solid var(--ink);
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.btn-signout:hover {
  background: var(--terracotta);
  color: var(--paper);
  transform: rotate(-1deg);
  border-color: var(--terracotta);
}
.btn-signout[hidden] { display: none; }

/* ---- Sidebar ---- */
aside.sidebar[data-app-chrome] {
  background:
    linear-gradient(180deg, var(--paper) 0, var(--paper) 100%),
    repeating-linear-gradient(
      to bottom,
      transparent 0, transparent 31px,
      rgba(11,30,58,0.05) 31px, rgba(11,30,58,0.05) 32px);
  border-right: 1.5px dashed var(--rule);
  padding: 1.6rem 1.15rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  min-height: 100%;
  position: relative;
}
aside.sidebar[data-app-chrome]::before {
  content: "notebook";
  position: absolute;
  right: 8px; top: 10px;
  font-family: 'Caveat', cursive;
  color: var(--muted);
  font-size: 0.95rem;
  transform: rotate(4deg);
  pointer-events: none;
}

.sidebar-head { display: flex; flex-direction: column; gap: 0.25rem; }
.sidebar-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.sidebar-title {
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-weight: 500;
  font-size: 1.35rem;
  color: var(--ink);
  line-height: 1.15;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 0.5rem;
}
.sidebar-project-name { }

/* Sidebar nav (list of project sections) */
ul.sidebar-nav {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
li.sidebar-nav-item { display: block; }
.sidebar-link {
  display: block;
  padding: 0.5rem 0.75rem 0.55rem;
  font-family: 'Fraunces', serif;
  font-size: 1rem;
  color: var(--ink);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
  position: relative;
}
.sidebar-link::before {
  content: "·";
  position: absolute;
  left: -2px; top: 0.4rem;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  opacity: 0.6;
}
.sidebar-link:hover {
  background: var(--paper-shadow);
  border-left-color: var(--rust);
  transform: translateX(1px);
}
.sidebar-link.active {
  background: var(--ink);
  color: var(--paper);
  border-left-color: var(--acid);
  font-style: italic;
}
.sidebar-link.active::before { color: var(--acid); }

/* Sidebar footer marginalia */
.sidebar-foot {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px dashed var(--rule);
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}
.aster-mark {
  color: var(--rust);
  flex: 0 0 auto;
  margin-top: 2px;
  transform: rotate(-12deg);
}
.margin-note {
  font-family: 'Caveat', cursive;
  font-size: 0.98rem;
  line-height: 1.15;
  color: var(--muted);
  letter-spacing: 0.005em;
}

/* ---- Main view root ---- */
main#view-root.view-root {
  background: var(--paper);
  min-width: 0;
  padding: 0;
}

/* ---- Boot splash (rendered by index.html before app.js runs) ---- */
.boot {
  padding: 4.5rem 2rem 6rem;
  text-align: center;
}
.boot-title {
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-weight: 400;
  font-size: 2.5rem;
  color: var(--ink);
  margin: 0 0 0.5rem;
  letter-spacing: -0.01em;
}
.boot .margin-note {
  font-size: 1.15rem;
  color: var(--muted);
}

/* ---- Crumbs (page-level breadcrumb strip) ---- */
nav.crumbs.page-crumbs {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0.65rem 2rem 0.4rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px dashed var(--rule);
  background: var(--paper);
  flex-wrap: wrap;
}
.crumb {
  color: var(--muted);
  text-decoration: none;
}
.crumb + .crumb::before {
  content: " / ";
  color: var(--rule);
  padding-right: 0.3rem;
}
.crumb-current { color: var(--ink); font-weight: 700; }

/* ---- Footer / colophon ---- */
footer.foot[data-app-chrome] {
  background: var(--paper);
  padding: 1.15rem 1.4rem 1.5rem;
  border-top: 1.5px solid var(--ink);
  color: var(--ink);
  position: relative;
}
.foot-rule {
  position: absolute;
  left: 0; right: 0; top: -6px;
  height: 4px;
  background:
    linear-gradient(90deg,
      transparent 0, transparent 4px,
      var(--ink) 4px, var(--ink) 8px,
      transparent 8px, transparent 16px) 0 0/16px 100% repeat-x;
  opacity: 0.35;
  pointer-events: none;
}
.foot-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr) minmax(0, 1fr);
  gap: 1.2rem;
  align-items: center;
}
.foot-cell {
  font-family: 'Newsreader', serif;
  font-size: 0.9rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 0.65rem;
}
.foot-cell-brand { justify-content: flex-start; }
.foot-cell-right { justify-content: flex-end; }
.foot-mark {
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--ink);
}
.foot-mark + .margin-note {
  font-family: 'Caveat', cursive;
  font-size: 1rem;
  color: var(--muted);
  transform: rotate(-1.5deg);
}
.foot-link {
  color: var(--terracotta);
  text-decoration: none;
  border-bottom: 1px dashed var(--terracotta-soft);
}
.foot-link:hover { color: var(--ink); border-bottom-color: var(--ink); }
.foot-ver {
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ---- Chrome shell responsive collapse ---- */
@media (max-width: 900px) {
  body {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "topbar"
      "sidebar"
      "main"
      "footer";
  }
  aside.sidebar[data-app-chrome] {
    border-right: none;
    border-bottom: 1.5px dashed var(--rule);
    padding: 1rem 1.15rem;
    flex-direction: row;
    align-items: center;
    gap: 1rem;
    overflow-x: auto;
  }
  aside.sidebar[data-app-chrome]::before { display: none; }
  .sidebar-head { flex: 0 0 auto; padding-right: 0.85rem; border-right: 1px dashed var(--rule); }
  ul.sidebar-nav { flex-direction: row; gap: 0.5rem; flex-wrap: nowrap; }
  .sidebar-link { padding: 0.35rem 0.6rem; }
  .sidebar-link::before { display: none; }
  .sidebar-foot { display: none; }
  .foot-row { grid-template-columns: 1fr; text-align: left; }
  .foot-cell-right, .foot-cell-brand { justify-content: flex-start; }
}
@media (max-width: 560px) {
  header.topbar[data-app-chrome] {
    padding: 0.6rem 0.9rem;
    gap: 0.65rem;
  }
  .brand-mark { font-size: 1.6rem; padding-right: 0.4rem; }
  .brand-caption-sub { display: none; }
  nav.topnav { width: 100%; order: 3; }
  .btn-signout { margin-left: 0; }
}

/* =============================================================================
 * Oligo motif strip — visual grammar for wet-lab oligos.
 *
 * A strip is a three-row unit: motif labels (top, Fraunces italic),
 * a colored ribbon whose blocks are proportional to base counts, and the
 * raw sequence text (bottom, JetBrains Mono, colored per segment).
 * Left/right ends are marked with "5'" / "3'" pins (swappable via
 * orientation). Also supports a compact inline variant (no labels/seq row)
 * used inside protocol reagent lists.
 * ============================================================================= */

.oligo-strip {
  position: relative;
  padding: 0.25rem 1.9rem 0.25rem 1.9rem;
  display: block;
  color: var(--ink);
}

/* ---- shared CSS-grid layout ---------------------------------------------
 * Every strip is one grid. Rows: (1) motif labels, (2) ribbon blocks,
 * (3) sequence text. Columns are computed per-instance so that column N
 * has the same width in all three rows — labels/blocks/sequence never
 * drift out of alignment (fixes D1, D3). Mod columns are fixed 32px;
 * everything else is `<bases>fr`.
 * ------------------------------------------------------------------------ */
.oligo-grid {
  display: grid;
  grid-auto-rows: auto;
  grid-auto-flow: row;
  column-gap: 2px;
  row-gap: 4px;
  align-items: stretch;
  width: 100%;
  /* grid-template-columns is inline-styled per instance */
}
.oligo-cell { min-width: 0; }

/* --- Row 1: labels ------------------------------------------------------ */
.oligo-cell-label {
  font-family: var(--f-display);
  font-style: italic;
  font-size: 0.72rem;
  color: var(--ink-soft);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.15;
  padding: 0 2px;
}
.oligo-cell-label-mod        { font-family: var(--f-mono); font-size: 0.6rem; font-style: normal; color: var(--ink); }
.oligo-cell-label-umi        { color: var(--fern); }
.oligo-cell-label-polyT      { color: var(--terracotta); }
.oligo-cell-label-polyA      { color: var(--rust); }
.oligo-cell-label-degenerate { color: var(--rust); font-style: italic; }
.oligo-cell-label-constant   { color: var(--ink); font-weight: 500; }
.oligo-cell-label-binding    { color: var(--acid); background: var(--ink); padding: 0 4px; border-radius: 2px; }
.oligo-cell-label-misc       { color: var(--muted); }

/* --- Row 2: ribbon blocks ---------------------------------------------- */
.oligo-cell-block {
  height: 26px;
  border: 1px solid var(--ink);
  box-sizing: border-box;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  font-family: var(--f-mono);
  font-size: 0.68rem;
  cursor: help;
  transition: filter 0.12s ease;
}
.oligo-cell-block:hover { filter: brightness(1.08); }

/* Base block class kept so JS's _blockClass() colouring still works. */
.oligo-block            { /* structural noop under grid; kept for JS compat */ }
.oligo-block-polyT      { background: var(--terracotta); color: #fff; }
.oligo-block-polyA      { background: var(--rust);       color: #fff; }
.oligo-block-umi        { background: var(--fern);       color: #fff; }
.oligo-block-constant   { background: var(--ink);        color: var(--acid); }
.oligo-block-degenerate { background: #e9c9a7;           color: var(--rust); font-style: italic; }
.oligo-block-misc       { background: #d4d0c8;           color: var(--muted); }
.oligo-block-binding    {
  background: var(--ink);
  color: var(--acid);
  border: 2px solid var(--acid);
  box-shadow: inset 0 0 0 1px var(--ink);
  position: relative;
}
.oligo-block-binding::after {
  content: '↔';
  position: absolute;
  right: 4px; top: 50%;
  transform: translateY(-50%);
  color: var(--acid);
  font-size: 0.7rem;
  pointer-events: none;
}
.oligo-block-mod {
  height: 26px;
  border-radius: 13px;
  background: var(--acid);
  color: var(--ink);
  border: 1.5px solid var(--ink);
  box-shadow: 0 0 6px var(--acid-glow);
  font-weight: 600;
}
.oligo-block-mod-text {
  font-family: var(--f-mono);
  font-size: 0.58rem;
  letter-spacing: 0.02em;
  padding: 0 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* UMI diagonal-stripe pattern for extra "randomness" cue. */
.umi-hash {
  background-image: repeating-linear-gradient(
    45deg,
    var(--fern) 0 6px,
    #6b8471   6px 12px
  );
}

/* --- Row 3: sequence text ---------------------------------------------- */
.oligo-cell-seq {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  line-height: 1.25;
  color: var(--ink);
  padding: 1px 2px;
  text-align: center;
  overflow-x: auto;      /* long sequence scrolls WITHIN its column only */
  overflow-y: hidden;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  scrollbar-width: thin;
}
.oligo-seg-polyT      { border-bottom-color: var(--terracotta); }
.oligo-seg-polyA      { border-bottom-color: var(--rust); }
.oligo-seg-umi        { border-bottom-color: var(--fern); }
.oligo-seg-constant   { border-bottom-color: var(--ink); }
.oligo-seg-mod        { border-bottom-color: var(--acid); color: var(--ink); font-weight: 600; }
.oligo-seg-degenerate { border-bottom-color: var(--rust); font-style: italic; }
.oligo-seg-binding    { border-bottom-color: var(--acid); color: var(--ink); font-weight: 600; background: rgba(212,255,58,0.15); }
.oligo-seg-misc       { border-bottom-color: var(--muted); color: var(--muted); }

/* --- 5' / 3' end pins --------------------------------------------------
 * Anchor to the ribbon row (row 2 of the grid) — the labels row above
 * and the sequence row below have their own vertical space that shouldn't
 * shift the end marker. We approximate by aligning to the ribbon's
 * baseline: labels row (~14px) + row-gap (4px) + half of block height (13px).
 * ---------------------------------------------------------------------- */
.oligo-strip-end {
  position: absolute;
  top: calc(0.25rem + 14px + 4px + 13px);
  transform: translateY(-50%);
  font-family: var(--f-display);
  font-style: italic;
  color: var(--muted);
  font-size: 0.78rem;
  pointer-events: none;
}
.oligo-strip-end-l { left: 0.3rem; }
.oligo-strip-end-r { right: 0.3rem; }

/* --- Compact inline variant (reagent-rail rows) ------------------------
 * No labels row — just a taller ribbon. Hover reveals a popover with
 * the full labels list (fixes D5).
 * ---------------------------------------------------------------------- */
.oligo-strip-inline {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0 1.1rem;
  vertical-align: middle;
  height: 22px;
}
.oligo-strip-inline .oligo-strip-end {
  position: static;
  top: auto;
  transform: none;
  font-size: 0.68rem;
}
.oligo-strip-ribbon-inline {
  display: inline-flex;
  gap: 1px;
  height: 18px;
  align-items: stretch;
}
.oligo-strip-ribbon-inline .oligo-block {
  height: 18px;
  border: 1px solid var(--ink);
  box-sizing: border-box;
}
.oligo-strip-ribbon-inline .oligo-block-mod {
  height: 18px; min-width: 18px; flex-basis: 18px;
  border-radius: 9px; box-shadow: none;
}
.oligo-strip-ribbon-inline .oligo-block-binding::after { content: ''; }

.oligo-strip-inline-pop {
  position: absolute;
  left: 50%;
  top: 100%;
  transform: translate(-50%, 4px);
  z-index: 40;
  display: none;
  gap: 6px;
  padding: 6px 10px;
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: 4px;
  box-shadow: 0 6px 14px rgba(0,0,0,0.12);
  font-family: var(--f-display);
  font-style: italic;
  font-size: 0.7rem;
  white-space: nowrap;
  pointer-events: none;
}
.oligo-strip-inline:hover .oligo-strip-inline-pop { display: inline-flex; }
.oligo-strip-inline-pop-item + .oligo-strip-inline-pop-item::before {
  content: '·';
  color: var(--muted);
  margin-right: 6px;
}

/* Reagent-list row that carries an inline oligo strip. */
.reagent-with-oligo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}
.reagent-with-oligo .reagent-text { flex: 1 1 auto; }

/* ------------------------------------------------------------------ *
 * Reagent-card comments footer                                       *
 * Per-reagent thread appended to each .reagent-card. The .comment /  *
 * .comment-composer sub-styles are inherited from earlier CSS.       *
 * ------------------------------------------------------------------ */
.reagent-card-comments {
  border-top: 1px dashed var(--rule);
  margin-top: 0.65rem;
  padding-top: 0.55rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.reagent-comments-summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.reagent-notes-count {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  padding: 2px 8px;
  border: 1px solid var(--rule);
  cursor: pointer;
  user-select: none;
}
.reagent-notes-count.has-notes {
  color: var(--paper);
  background: var(--terracotta);
  border-color: var(--terracotta);
}
.reagent-notes-count:hover { border-color: var(--ink); }
.btn-note-add {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  color: var(--ink);
  padding: 2px 8px;
  background: transparent;
  border: 1px solid var(--rule);
  cursor: pointer;
}
.btn-note-add:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.reagent-comments-thread {
  display: none;
  background: var(--paper-shadow);
  padding: 0.6rem 0.7rem;
  border: 1px dashed var(--rule);
}
.reagent-comments-thread.is-open { display: block; }
.reagent-comments-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 0.6rem;
}

/* ---------------------------------------------------------------------------
 * Feedback panel — "will be bundled" preview + two-button footer
 * ------------------------------------------------------------------------- */
.fb-bundle-wrap { display: flex; flex-direction: column; gap: 0.5rem; }
.fb-bundle-summary {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  align-self: flex-start;
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  padding: 0.35rem 0.7rem;
  border: 1px dashed var(--rule);
  background: var(--paper-shadow);
  color: var(--ink-soft);
  cursor: pointer;
  border-radius: 2px;
}
.fb-bundle-summary:hover { border-color: var(--ink); color: var(--ink); }
.fb-bundle-summary.has-items {
  color: var(--terracotta);
  border-color: var(--terracotta);
  background: rgba(201,80,43,0.08);
}
.fb-bundle-summary.is-open::after { content: ' ▾'; }
.fb-preview {
  border: 1px dashed var(--rule);
  background: var(--paper-shadow);
  padding: 0.55rem 0.7rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  max-height: 240px;
  overflow-y: auto;
}
.fb-preview-row {
  display: grid;
  grid-template-columns: 18px 140px 1fr auto;
  gap: 0.55rem;
  align-items: baseline;
  padding: 0.3rem 0.2rem;
  border-bottom: 1px dotted var(--rule);
  cursor: pointer;
  font-size: 0.83rem;
}
.fb-preview-row:last-child { border-bottom: 0; }
.fb-preview-anchor { color: var(--ink-soft); font-size: 0.72rem; }
.fb-preview-text { color: var(--ink); font-family: var(--f-hand); font-size: 1rem; }
.fb-preview-ts { justify-self: end; white-space: nowrap; }

.fb-actions-row {
  display: flex;
  gap: 0.6rem;
  justify-content: flex-end;
  align-items: center;
  margin-top: 0.8rem;
  padding-top: 0.6rem;
  border-top: 1px dashed var(--rule);
}
.btn-iterate {
  background: var(--acid);
  color: var(--ink);
  border: 1px solid var(--ink);
  padding: 0.55rem 1.1rem;
  box-shadow: 3px 3px 0 var(--ink);
  font-family: var(--f-display);
  font-style: italic;
  font-weight: 600;
}
.btn-iterate:hover:not(:disabled) {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--ink), 0 0 16px var(--acid-glow);
}
.fb-download-bundle {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--terracotta);
  color: var(--terracotta);
  text-decoration: none;
  border-radius: 2px;
}
.fb-download-bundle:hover { background: var(--terracotta); color: var(--paper); }

/* ---------------------------------------------------------------------------
 * Protocol session picker + iter-delta card
 * ------------------------------------------------------------------------- */
.iter-picker {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  margin-left: auto;
  padding: 0.2rem 0.4rem;
}
.iter-picker-prev, .iter-picker-next {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.55rem;
  border: 1px solid var(--ink);
  color: var(--ink);
  text-decoration: none;
  border-radius: 2px;
  background: var(--paper);
}
.iter-picker-prev:hover, .iter-picker-next:hover {
  background: var(--ink); color: var(--paper);
}
.iter-picker-prev.is-disabled,
.iter-picker-next.is-disabled { opacity: 0.35; pointer-events: none; }
.iter-picker-current {
  font-family: var(--f-display);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--ink);
  padding: 0 0.3rem;
}

.iter-delta {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  flex-wrap: wrap;
  padding: 0.55rem 0.9rem;
  margin: 0.6rem 0 0.4rem;
  font-family: var(--f-mono);
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  color: var(--ink-soft);
  border-left: 3px solid var(--ink);
}
.iter-delta-label { color: var(--ink); font-weight: 500; }
.iter-delta-score.up   { color: var(--fern); font-weight: 600; }
.iter-delta-score.down { color: var(--terracotta); font-weight: 600; }
.iter-delta-sep { color: var(--rule); }

/* Run head — iter chip -------------------------------------------------- */
.iter-chip {
  font-family: var(--f-display);
  font-style: italic;
  font-size: 0.9rem;
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--ink);
  border-radius: 999px;
  color: var(--ink);
  background: var(--paper);
  margin-right: 0.35rem;
}

/* ---------------------------------------------------------------------------
 * Memory view — iteration timeline
 * ------------------------------------------------------------------------- */
.iteration-timeline {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  margin-top: 1rem;
}
.iter-sparkline { width: 100%; max-width: 100%; height: 72px; }
.iteration-card {
  padding: 0.9rem 1.1rem;
  cursor: default;
  border-left: 3px solid var(--ink);
}
.iteration-card-head {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  flex-wrap: wrap;
  cursor: pointer;
}
.iteration-card-head::after {
  content: '▸';
  margin-left: auto;
  font-family: var(--f-mono);
  color: var(--ink-soft);
  transition: transform .12s ease;
}
.iteration-card.expanded .iteration-card-head::after { transform: rotate(90deg); }

.iteration-card-body {
  display: none;
  margin-top: 0.7rem;
  padding-top: 0.7rem;
  border-top: 1px dashed var(--rule);
}
.iteration-card.expanded .iteration-card-body { display: block; }
.iteration-card-body h5 { margin-top: 0.6rem; }
.iteration-card-body ul { margin: 0.3rem 0 0.6rem 1.1rem; }

.iteration-card-delta {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  padding: 0.15rem 0.45rem;
  border: 1px solid currentColor;
  border-radius: 2px;
}
.iteration-card-delta.up   { color: var(--fern); }
.iteration-card-delta.down { color: var(--terracotta); }
.iteration-card-delta.muted { color: var(--muted); border-color: var(--rule); }

.iteration-card-comments-chip {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  padding: 0.15rem 0.45rem;
  color: var(--ink-soft);
  border: 1px dashed var(--rule);
  border-radius: 2px;
}

.btn-open-iter-protocol {
  font-family: var(--f-display);
  font-style: italic;
  text-decoration: none;
  display: inline-block;
  margin-top: 0.4rem;
}

@media (max-width: 640px) {
  .fb-preview-row { grid-template-columns: 18px 1fr; grid-auto-rows: auto; }
  .fb-preview-anchor { grid-column: 2; }
  .fb-preview-text   { grid-column: 2; }
  .fb-preview-ts     { grid-column: 2; justify-self: start; }
  .iter-picker { margin-left: 0; margin-top: 0.4rem; }
  .fb-actions-row { flex-direction: column; align-items: stretch; }
}

/* -----------------------------------------------------------------------
 * Runtime-missing UI — shown when start-run / iterate can't proceed
 * because neither PROTOCOL_AGENT_SRC nor PROTOCOL_AGENT_RUNNER_URL is
 * configured. Kept muted and lab-notebook in tone so it feels informative,
 * not like a broken app.
 * --------------------------------------------------------------------- */
.runtime-missing-banner {
  background: var(--paper-shadow);
  border: 1.4px dashed var(--rule);
  padding: 0.85rem 1rem;
  color: var(--muted);
  font-family: var(--f-body);
  margin: 1rem 0;
  line-height: 1.5;
}
.runtime-missing-banner a {
  color: var(--terracotta);
  border-bottom: 1px dashed var(--terracotta-soft);
}
.runtime-missing-banner strong {
  color: var(--ink);
  font-style: italic;
  font-family: var(--f-display);
}
.runtime-missing-inline {
  font-family: var(--f-hand);
  color: var(--muted);
  font-size: 0.98rem;
  margin-top: 0.45rem;
}

/* PDF download pill in the protocol top bar */
.btn-download-pdf {
  font-family: var(--f-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  padding: 0.32rem 0.7rem;
  margin-left: 0.5rem;
  color: var(--ink);
  border: 1px solid var(--ink);
  background: transparent;
  text-decoration: none;
}
.btn-download-pdf:hover { background: var(--ink); color: var(--paper); }

/* "browse candidates" pill — same skin as PDF button but with acid glow on hover */
.btn-candidates {
  font-family: var(--f-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  padding: 0.32rem 0.7rem;
  margin-left: 0.5rem;
  color: var(--ink);
  border: 1px solid var(--ink);
  background: transparent;
  text-decoration: none;
}
.btn-candidates:hover {
  background: var(--acid);
  color: var(--ink);
  box-shadow: 0 0 0 3px rgba(212,255,58,0.25);
}

/* Muted chip for the "iter N" badge in protocol top bar when viewing a
 * user-picked (non-champion) iteration. */
.chip.chip-muted {
  background: var(--paper);
  color: var(--muted);
  border-color: var(--muted);
  font-family: var(--f-mono);
  letter-spacing: 0.06em;
}

/* ===================== candidates page ===================== */
.view-candidates { max-width: 1240px; margin: 0 auto; padding: 2rem 1.5rem 4rem; }
.cand-page-head { margin-bottom: 1.8rem; }
.cand-page-head h1 { margin: 0 0 0.4rem; font-size: 2.2rem; }
.cand-page-head p  { max-width: 62ch; margin-top: 0.5rem; }
.cand-page-sub { margin: 0.35rem 0 0; }

.cand-grid {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
}

.cand-card {
  position: relative;
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: 4px;
  padding: 1.1rem 1.2rem 1.2rem;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  transition: box-shadow 180ms, transform 180ms;
}
.cand-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lift); }
.cand-card.is-champion {
  border-color: #b18800;
  background: linear-gradient(180deg, #fff9e6, var(--paper) 55%);
}
.cand-card.is-picked {
  border-color: var(--fern);
  outline: 2px solid rgba(94,148,110,0.25);
  outline-offset: 2px;
}

.cand-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.8rem;
}
.cand-iter {
  display: flex; flex-direction: column; gap: 0.35rem; align-items: flex-start;
}
.cand-iter-num {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.cand-score { text-align: right; }
.cand-score-val {
  font-family: var(--f-display);
  font-size: 2.1rem;
  line-height: 1;
  font-weight: 600;
  font-style: italic;
}
.cand-score-lbl {
  font-size: 0.66rem; color: var(--muted); letter-spacing: 0.06em;
}

.cand-title {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.35;
  font-weight: 500;
}
.cand-oneliner {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.5;
}

.cand-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.15rem;
}
.cand-chip {
  font-family: var(--f-mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.16rem 0.5rem;
  border-radius: 2px;
  border: 1px solid;
}
.cand-chip-ok    { background: var(--fern);        color: var(--paper); border-color: var(--fern); }
.cand-chip-warn  { background: var(--terracotta-soft); color: var(--ink); border-color: var(--terracotta-soft); }
.cand-chip-muted { background: var(--paper);       color: var(--muted); border-color: var(--muted); }
.cand-chip-gold  { background: #f9d871;            color: var(--ink);   border-color: #b18800; }

.cand-actions {
  margin-top: auto;
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
  padding-top: 0.4rem;
}
.btn-use { min-width: 12rem; }
.btn-use:disabled {
  opacity: 0.55; cursor: default;
  background: var(--fern); color: var(--paper); border-color: var(--fern);
}

.cand-footer { margin-top: 1.8rem; }

.cand-empty-card {
  padding: 1.3rem 1.5rem 1.6rem;
  border: 1px dashed var(--muted);
  background: rgba(94,148,110,0.05);
  margin-top: 1rem;
}
.cand-empty-card p { line-height: 1.55; margin: 0.4rem 0; }
.cand-empty-card a { font-weight: 600; }

/* ===================== round provenance banner ===================== */
.prov-banner {
  margin: 1.6rem 0 1.4rem;
  padding: 1rem 1.2rem;
  border-left: 3px solid var(--acid);
  background: linear-gradient(90deg, rgba(212,255,58,0.10), rgba(212,255,58,0) 60%);
  border-radius: 2px;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.prov-banner.prov-initial {
  border-left-color: var(--fern);
  background: linear-gradient(90deg, rgba(94,148,110,0.12), rgba(94,148,110,0) 60%);
}
.prov-banner p { margin: 0; line-height: 1.55; }
.prov-tag {
  font-family: var(--f-mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  align-self: flex-start;
  padding: 0.14rem 0.5rem;
  border: 1px solid var(--muted);
  border-radius: 2px;
}
.prov-banner.prov-initial .prov-tag { color: var(--fern); border-color: var(--fern); }
.prov-details {
  margin-top: 0.25rem;
  font-size: 0.86rem;
  color: var(--muted);
}
.prov-details summary {
  cursor: pointer;
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  padding: 0.15rem 0;
}
.prov-details summary:hover { color: var(--ink); }
.prov-hfa {
  margin: 0.5rem 0 0;
  padding: 0.6rem 0.8rem;
  background: var(--paper);
  border: 1px dashed var(--muted);
  border-radius: 2px;
  font-family: var(--f-body, var(--f-mono));
  font-size: 0.85rem;
  color: var(--ink);
  line-height: 1.55;
}
.prov-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.35rem;
}

/* ===================== round digest panel ===================== */
.round-digest {
  margin: 0 0 1.6rem;
  padding: 1rem 1.2rem;
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: 3px;
  box-shadow: var(--shadow-soft);
}
.round-digest .label-hand { margin-bottom: 0.6rem; }
.digest-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}
.digest-cols h4 {
  margin: 0 0 0.35rem;
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.digest-cols ul {
  margin: 0;
  padding-left: 1rem;
  font-size: 0.86rem;
  line-height: 1.55;
  color: var(--ink);
}
.digest-cols li { margin-bottom: 0.25rem; }
@media (max-width: 780px) {
  .digest-cols { grid-template-columns: 1fr; gap: 0.8rem; }
}
/* ===================== oligo auto-propose toggle ===================== */
.oligo-auto-propose-row {
  display: flex; align-items: flex-start; gap: 0.55rem;
  margin: 0.7rem 0 0.3rem;
  padding: 0.55rem 0.75rem;
  border: 1px dashed var(--muted);
  border-radius: 3px;
  background: rgba(94,148,110,0.06);
  cursor: pointer;
  line-height: 1.4;
}
.oligo-auto-propose-row input[type="checkbox"] { transform: translateY(2px); }
.oligo-auto-propose-row strong { font-weight: 600; }
.oligo-auto-propose-msg {
  padding: 1rem 1.1rem;
  border: 1px dashed var(--fern);
  border-radius: 3px;
  background: rgba(94,148,110,0.08);
  color: var(--ink);
  font-size: 0.9rem;
  line-height: 1.55;
}
.oligo-auto-propose-msg p { margin: 0; }
.btn-add-oligo.is-disabled { opacity: 0.4; cursor: not-allowed; }

/* ===================== save-draft button in setup ===================== */
.btn-save-draft { margin-right: 0.5rem; }
.last-saved-note { margin-right: 0.8rem; align-self: center; }
.sticky-launch { gap: 0.4rem; }

/* ===================== proposed-oligos panel (protocol viewer) ===================== */
.proposed-oligos {
  padding: 1rem 1.2rem 1.2rem;
  margin: 1rem 0;
  border-top: 3px solid var(--acid);
}
.proposed-oligos-head {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-bottom: 0.7rem; gap: 1rem;
}
.proposed-oligos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 0.9rem;
}
.proposed-oligo-card {
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--muted);
  border-radius: 3px;
  background: var(--paper);
  display: flex; flex-direction: column; gap: 0.4rem;
}
.po-head {
  display: flex; justify-content: space-between; align-items: center; gap: 0.5rem;
}
.po-name {
  font-family: var(--f-display);
  font-style: italic;
  font-size: 1.02rem;
  font-weight: 500;
}
.oligo-src-tag {
  font-family: var(--f-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.14rem 0.5rem;
  border-radius: 2px;
  border: 1px solid;
}
.oligo-src-agent  { background: rgba(212,255,58,0.16); color: var(--ink); border-color: var(--acid); }
.oligo-src-locked { background: var(--paper); color: var(--muted); border-color: var(--muted); }
.po-role { letter-spacing: 0.08em; }
.po-strip { margin: 0.15rem 0; }
.po-purpose { margin: 0; color: var(--muted); line-height: 1.45; }

/* ===================== library picker (modal) ===================== */
.lib-modal-overlay {
  position: fixed; inset: 0;
  background: rgba(30, 26, 22, 0.55);
  z-index: 1000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 4vh 2vw;
  overflow-y: auto;
}
.lib-modal {
  width: min(720px, 96vw);
  max-height: 90vh;
  overflow-y: auto;
  padding: 1.4rem 1.6rem 1.8rem;
  background: var(--paper);
  border: 1px solid var(--ink);
  box-shadow: var(--shadow-lift, 0 12px 40px rgba(0,0,0,0.28));
  border-radius: 4px;
}
.lib-modal-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.6rem;
}
.lib-modal-head h2 { margin: 0; font-size: 1.6rem; }
.lib-modal-body { margin-top: 1rem; }

.lib-proj {
  margin-bottom: 1.4rem;
  padding: 0.8rem 1rem;
  border: 1px solid var(--muted);
  border-radius: 3px;
  background: var(--paper);
}
.lib-proj-name {
  margin: 0 0 0.6rem;
  font-family: var(--f-display);
  font-size: 1.05rem;
  font-style: italic;
  font-weight: 500;
}
.lib-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 0.8rem;
  padding: 0.5rem 0;
  border-top: 1px dashed var(--muted);
}
.lib-row:first-of-type { border-top: none; }
.lib-row-info { display: flex; flex-direction: column; gap: 0.15rem; }
.lib-fname { font-weight: 500; }
.lib-meta { font-size: 0.72rem; letter-spacing: 0.06em; }

.dz-library {
  font-family: var(--f-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
}
.dz-library:hover { background: var(--acid); color: var(--ink); }

/* ===================== session picker (setup page) ===================== */
.session-picker {
  margin-top: 1.4rem;
  padding: 1.1rem 1.3rem 1.2rem;
  border: 1px solid var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow-soft);
  border-radius: 3px;
}
.session-picker.session-picker-top {
  margin-top: 0.4rem;
  margin-bottom: 1.4rem;
  border-top: 4px solid var(--acid);
}
.session-tabs {
  display: flex; flex-wrap: wrap; gap: 0.5rem;
  margin: 0.5rem 0 0.8rem;
}
.session-tab {
  background: var(--paper);
  border: 1px solid var(--muted);
  padding: 0.5rem 0.9rem;
  border-radius: 3px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.1rem;
  min-width: 12rem;
  transition: border-color 120ms, background 120ms;
}
.session-tab:hover { border-color: var(--ink); }
.session-tab.is-active {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--acid);
  cursor: default;
}
.session-tab .st-id {
  font-family: var(--f-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.session-tab.is-active .st-id { color: var(--acid); }
.session-tab .st-label {
  font-family: var(--f-display);
  font-size: 1rem;
  font-style: italic;
}
.session-tab .st-rounds {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  color: var(--muted);
}
.session-tab.is-active .st-rounds { color: rgba(212,255,58,0.65); }

.session-new-form {
  margin: 0.4rem 0 0.6rem;
}
.session-new-form summary {
  cursor: pointer;
  font-family: var(--f-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--ink);
  padding: 0.3rem 0.6rem;
  border: 1px dashed var(--muted);
  border-radius: 2px;
  width: max-content;
}
.session-new-form summary:hover { border-color: var(--ink); }
.session-new-body {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.6rem 0.9rem;
  align-items: center;
  padding: 0.9rem;
  margin-top: 0.5rem;
  border-left: 3px solid var(--acid);
  background: rgba(212,255,58,0.05);
}
.session-new-body .row-end { grid-column: 1 / span 2; }
.session-summary-line {
  margin: 0.5rem 0 0;
  padding: 0.5rem 0.7rem;
  background: var(--paper);
  border: 1px solid var(--muted);
  border-radius: 2px;
}
.session-picker .section-h { margin-top: 0; }
.session-mode-row {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  padding: 0.35rem 0;
  cursor: pointer;
}
.session-mode-row input[type="radio"] { transform: translateY(1px); }
.sess-mode-label { line-height: 1.4; }
.sess-current { font-family: var(--f-mono); letter-spacing: 0.04em; color: var(--ink); }
.sess-current-rounds { color: var(--muted); font-size: 0.86rem; }
.session-new-opts {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.5rem 0.9rem;
  align-items: center;
  margin-top: 0.6rem;
  padding-left: 1.5rem;
  border-left: 2px dashed var(--muted);
}
.session-new-opts label { color: var(--muted); font-size: 0.82rem; }
.session-new-opts select[disabled],
.session-new-opts input[disabled] { opacity: 0.5; }

/* ===================== sessions & rounds page ===================== */
.memory-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.4rem;
}
.memory-head-actions { flex-shrink: 0; padding-top: 0.4rem; }
.memory-head p { max-width: 62ch; margin-top: 0.4rem; }

.session-group-card {
  padding: 1rem 1.2rem 1.2rem;
  margin-bottom: 1.4rem;
  border: 1px solid var(--muted);
  background: var(--paper);
  border-radius: 3px;
}
.session-group-card.is-current {
  border-color: var(--ink);
  outline: 2px solid rgba(212,255,58,0.35);
  outline-offset: 2px;
}
.session-group-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.8rem;
  border-bottom: 1px dashed var(--muted);
  padding-bottom: 0.6rem;
  margin-bottom: 0.8rem;
}
.session-group-title {
  display: flex; gap: 0.55rem; align-items: center; flex-wrap: wrap;
}
.session-group-label {
  margin: 0;
  font-family: var(--f-display);
  font-size: 1.25rem;
  font-weight: 500;
  font-style: italic;
}
.session-group-meta {
  display: flex; gap: 0.6rem; align-items: center; flex-shrink: 0;
}
.session-group-spark { margin-bottom: 0.6rem; }
.session-empty { padding: 0.5rem 0; }
.session-group-timeline { margin-top: 0.4rem; }

.view-candidates .section-h {
  margin: 1.6rem 0 0.6rem;
  font-family: var(--f-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

/* Sub-label inside .iter-picker-current — shows internal champion iter */
.iter-picker-sub {
  font-family: var(--f-mono);
  font-size: 0.62rem;
  color: var(--muted);
  letter-spacing: 0.05em;
  margin-left: 4px;
}