/* Unified notes stylesheet for all note pages. */

/* Shared pointer trail styles for notes pages. */
body.cursor-mode-on,
body.cursor-mode-on * {
  cursor: none !important;
}

.cursor-trail-canvas {
  position: fixed;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 9998;
  opacity: 0;
  transition: opacity 0.15s;
}

.cursor-pointer {
  position: fixed;
  left: 0;
  top: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #ff1a1a;
  pointer-events: none;
  z-index: 9999;
  opacity: 0;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 4px rgba(255, 30, 30, 0.95), 0 0 10px rgba(255, 20, 20, 0.65);
  transition: opacity 0.15s;
}

.cursor-pointer::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  width: 18px;
  height: 18px;
  border: 1px solid rgba(255, 70, 70, 0.9);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 6px rgba(255, 35, 35, 0.5);
}

body.cursor-mode-on .cursor-trail-canvas,
body.cursor-mode-on .cursor-pointer {
  opacity: 1;
}

.cursor-toggle-btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid var(--border-subtle);
  background: transparent;
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s;
  margin: 0 12px;
  display: block;
  width: calc(100% - 24px);
  text-align: center;
}

.cursor-toggle-btn:hover {
  border-color: rgba(192, 82, 74, 0.4);
  color: var(--danger);
}

.cursor-toggle-btn.is-on {
  border-color: rgba(192, 82, 74, 0.5);
  color: var(--danger);
  background: rgba(192, 82, 74, 0.1);
  text-shadow: 0 0 8px rgba(255, 40, 40, 0.35);
}

/* Shared article + modular note layout styles */
body.notes-layout-article,
body.notes-layout-modular {
  --cover-bg: linear-gradient(136deg, #f8f2e6 0%, #efe5d5 52%, #e2d2bb 100%);
  --cover-text: #1f1710;
  --cover-sub: rgba(45, 33, 20, 0.75);
  --cover-label: rgba(58, 43, 28, 0.72);
  --cover-chip-border: rgba(53, 37, 20, 0.23);
  --cover-chip-text: rgba(38, 27, 16, 0.86);
  --cover-ring-a: rgba(84, 58, 27, 0.17);
  --cover-ring-b: rgba(84, 58, 27, 0.12);
  --cover-ref: rgba(58, 41, 24, 0.68);
}

body.theme-dark.notes-layout-article,
body.theme-dark.notes-layout-modular {
  --cover-bg: linear-gradient(140deg, #12100d 0%, #1b1712 48%, #2a2117 100%);
  --cover-text: #f7f3ea;
  --cover-sub: rgba(250, 245, 236, 0.64);
  --cover-label: rgba(250, 245, 236, 0.44);
  --cover-chip-border: rgba(250, 245, 236, 0.25);
  --cover-chip-text: rgba(250, 245, 236, 0.78);
  --cover-ring-a: rgba(250, 245, 236, 0.08);
  --cover-ring-b: rgba(250, 245, 236, 0.06);
  --cover-ref: rgba(250, 245, 236, 0.34);
}

body.notes-layout-article .notes-scope,
body.notes-layout-modular .notes-scope {
  --ink:#1a1814;
  --ink-soft:#3d3a35;
  --ink-faint:#6e6a62;
  --paper:#faf8f4;
  --paper-warm:#f3f0e8;
  --paper-cream:#ede9de;
  --rule:#d5d0c5;
  --rule-light:#e8e4d8;

  --accent-p:#5c3fa0;
  --accent-p-bg:#f0ecfa;
  --accent-p-mid:#9b85d4;
  --accent-n:#1a6b4a;
  --accent-n-bg:#edf7f2;
  --accent-n-mid:#5aa882;
  --accent-b:#174e87;
  --accent-b-bg:#eaf2fb;
  --accent-b-mid:#6699cc;
  --accent-r:#912b2b;
  --accent-r-bg:#fdf0f0;
  --accent-r-mid:#cc7777;
  --accent-o:#7a4a10;
  --accent-o-bg:#fdf5e8;
  --accent-o-mid:#d4961f;
}

body.theme-dark.notes-layout-article .notes-scope,
body.theme-dark.notes-layout-modular .notes-scope {
  --ink:#ece6da;
  --ink-soft:#c8bfaf;
  --ink-faint:#998f7f;
  --paper:#11100d;
  --paper-warm:#191713;
  --paper-cream:#23201b;
  --rule:#3c352c;
  --rule-light:#2f2a22;

  --accent-p:#c9b0f8;
  --accent-p-bg:rgba(155,133,212,0.22);
  --accent-p-mid:rgba(201,176,248,0.45);
  --accent-n:#9ad9b6;
  --accent-n-bg:rgba(90,168,130,0.24);
  --accent-n-mid:rgba(154,217,182,0.46);
  --accent-b:#a5c9f1;
  --accent-b-bg:rgba(102,153,204,0.24);
  --accent-b-mid:rgba(165,201,241,0.46);
  --accent-r:#e7adad;
  --accent-r-bg:rgba(204,119,119,0.24);
  --accent-r-mid:rgba(231,173,173,0.46);
  --accent-o:#efc383;
  --accent-o-bg:rgba(212,150,31,0.24);
  --accent-o-mid:rgba(239,195,131,0.46);
}

body.notes-layout-article .notes-cover,
body.notes-layout-modular .notes-cover {
  background: var(--cover-bg);
  color: var(--cover-text);
  padding: 64px 48px 52px;
  position: relative;
  overflow: hidden;
  transition: background 0.24s ease, color 0.24s ease;
}

body.notes-layout-article .notes-cover::before,
body.notes-layout-modular .notes-cover::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  border: 1px solid var(--cover-ring-a);
}

body.notes-layout-article .notes-cover::after,
body.notes-layout-modular .notes-cover::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: 30%;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  border: 1px solid var(--cover-ring-b);
}

body.notes-layout-article .notes-cover .cover-label,
body.notes-layout-modular .notes-cover .cover-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cover-label);
  margin-bottom: 20px;
}

body.notes-layout-article .notes-cover h1,
body.notes-layout-modular .notes-cover h1 {
  font-family: 'Playfair Display', serif;
  font-size: 42px;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 14px;
  color: var(--cover-text);
}

body.notes-layout-article .notes-cover .cover-sub,
body.notes-layout-modular .notes-cover .cover-sub {
  font-size: 15px;
  color: var(--cover-sub);
  font-style: italic;
  margin-bottom: 32px;
}

body.notes-layout-article .notes-cover .cover-topics,
body.notes-layout-modular .notes-cover .cover-topics {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

body.notes-layout-article .notes-cover .topic-chip,
body.notes-layout-modular .notes-cover .topic-chip {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  padding: 5px 14px;
  border: 1px solid var(--cover-chip-border);
  border-radius: 2px;
  letter-spacing: .08em;
  color: var(--cover-chip-text);
  background: transparent;
}

body.notes-layout-article .notes-cover .refs-note,
body.notes-layout-modular .notes-cover .refs-note {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--cover-ref);
  margin-top: 28px;
  letter-spacing: .05em;
}

body.notes-layout-article .notes-scope *,
body.notes-layout-modular .notes-scope * {
  box-sizing: border-box;
}

body.notes-layout-article .notes-scope,
body.notes-layout-modular .notes-scope {
  font-family: 'Source Serif 4', Georgia, serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.75;
  font-size: 15px;
  padding: 32px;
}

body.notes-layout-article .notes-scope h3,
body.notes-layout-modular .notes-scope h3 {
  font-family: 'Playfair Display', serif;
  font-size: 19px;
  font-weight: 600;
  margin: 36px 0 10px;
  color: var(--ink);
  border-bottom: 1px solid var(--rule);
  padding-bottom: 7px;
}

body.notes-layout-article .notes-scope h4,
body.notes-layout-modular .notes-scope h4 {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 20px 0 7px;
}

body.notes-layout-article .notes-scope p,
body.notes-layout-modular .notes-scope p {
  margin-bottom: 12px;
  color: var(--ink-soft);
}

body.notes-layout-article .notes-scope a,
body.notes-layout-modular .notes-scope a {
  color: var(--accent-b);
}

body.notes-layout-article .notes-scope strong,
body.notes-layout-modular .notes-scope strong {
  color: var(--ink);
}

body.notes-layout-article .notes-scope em,
body.notes-layout-modular .notes-scope em {
  font-style: italic;
}

/* Image utilities for notes content (inline, wrap, break, full-width). */
body.notes-layout-article .notes-scope img,
body.notes-layout-modular .notes-scope img {
  max-width: 100%;
  height: auto;
}

body.notes-layout-article .notes-scope figure.note-figure,
body.notes-layout-modular .notes-scope figure.note-figure {
  margin: 18px 0;
}

body.notes-layout-article .notes-scope figure.note-figure > img,
body.notes-layout-modular .notes-scope figure.note-figure > img,
body.notes-layout-article .notes-scope img.img-wrap-left,
body.notes-layout-modular .notes-scope img.img-wrap-left,
body.notes-layout-article .notes-scope img.img-wrap-right,
body.notes-layout-modular .notes-scope img.img-wrap-right,
body.notes-layout-article .notes-scope img.img-break,
body.notes-layout-modular .notes-scope img.img-break,
body.notes-layout-article .notes-scope img.img-full,
body.notes-layout-modular .notes-scope img.img-full {
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--paper-cream);
}

body.notes-layout-article .notes-scope figure.note-figure > img,
body.notes-layout-modular .notes-scope figure.note-figure > img {
  display: block;
  width: 100%;
}

body.notes-layout-article .notes-scope figure.note-figure figcaption,
body.notes-layout-modular .notes-scope figure.note-figure figcaption {
  margin-top: 8px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

body.notes-layout-article .notes-scope figure.note-figure.inline,
body.notes-layout-modular .notes-scope figure.note-figure.inline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  vertical-align: middle;
  margin: 0 4px;
}

body.notes-layout-article .notes-scope figure.note-figure.inline > img,
body.notes-layout-modular .notes-scope figure.note-figure.inline > img {
  width: auto;
  max-height: 1.7em;
  border: none;
  border-radius: 0;
  background: transparent;
}

body.notes-layout-article .notes-scope figure.note-figure.inline figcaption,
body.notes-layout-modular .notes-scope figure.note-figure.inline figcaption {
  margin: 0;
  font-size: 11px;
  letter-spacing: .03em;
  text-transform: none;
}

body.notes-layout-article .notes-scope figure.note-figure.wrap-left,
body.notes-layout-modular .notes-scope figure.note-figure.wrap-left,
body.notes-layout-article .notes-scope img.img-wrap-left,
body.notes-layout-modular .notes-scope img.img-wrap-left {
  float: left;
  width: clamp(180px, 36%, 320px);
  margin: 6px 18px 14px 0;
}

body.notes-layout-article .notes-scope figure.note-figure.wrap-right,
body.notes-layout-modular .notes-scope figure.note-figure.wrap-right,
body.notes-layout-article .notes-scope img.img-wrap-right,
body.notes-layout-modular .notes-scope img.img-wrap-right {
  float: right;
  width: clamp(180px, 36%, 320px);
  margin: 6px 0 14px 18px;
}

body.notes-layout-article .notes-scope figure.note-figure.break,
body.notes-layout-modular .notes-scope figure.note-figure.break,
body.notes-layout-article .notes-scope img.img-break,
body.notes-layout-modular .notes-scope img.img-break {
  clear: both;
  display: block;
  width: min(100%, 760px);
  margin: 20px auto;
}

body.notes-layout-article .notes-scope figure.note-figure.full,
body.notes-layout-modular .notes-scope figure.note-figure.full,
body.notes-layout-article .notes-scope img.img-full,
body.notes-layout-modular .notes-scope img.img-full {
  clear: both;
  display: block;
  width: 100%;
  margin: 20px 0;
}

body.notes-layout-article .notes-scope img.img-inline,
body.notes-layout-modular .notes-scope img.img-inline {
  display: inline-block;
  width: auto;
  max-height: 1.35em;
  vertical-align: -0.2em;
  margin: 0 0.28em;
  border: none;
  border-radius: 0;
  background: transparent;
}

body.notes-layout-article .notes-scope .img-clear,
body.notes-layout-modular .notes-scope .img-clear,
body.notes-layout-article .notes-scope .note-clear,
body.notes-layout-modular .notes-scope .note-clear {
  clear: both;
  display: block;
  height: 0;
}

@media (max-width: 900px) {
  body.notes-layout-article .notes-scope figure.note-figure.wrap-left,
  body.notes-layout-modular .notes-scope figure.note-figure.wrap-left,
  body.notes-layout-article .notes-scope figure.note-figure.wrap-right,
  body.notes-layout-modular .notes-scope figure.note-figure.wrap-right,
  body.notes-layout-article .notes-scope img.img-wrap-left,
  body.notes-layout-modular .notes-scope img.img-wrap-left,
  body.notes-layout-article .notes-scope img.img-wrap-right,
  body.notes-layout-modular .notes-scope img.img-wrap-right {
    float: none;
    width: 100%;
    max-width: 100%;
    margin: 16px 0;
  }
}

body.notes-layout-article .notes-scope .formula-desc,
body.notes-layout-modular .notes-scope .formula-desc {
  font-size: 12px;
  color: var(--ink-faint);
  margin-top: 7px;
  font-style: italic;
}

body.notes-layout-article .notes-scope .callout.warn,
body.notes-layout-modular .notes-scope .callout.warn {
  background: var(--accent-o-bg);
  border-color: var(--accent-o-mid);
  color: var(--accent-o);
}

body.notes-layout-article .notes-scope td,
body.notes-layout-modular .notes-scope td {
  padding: 10px 14px;
  border: 1px solid var(--rule);
  color: var(--ink-soft);
  vertical-align: top;
}

body.notes-layout-article .notes-scope tr:nth-child(even) td,
body.notes-layout-modular .notes-scope tr:nth-child(even) td {
  background: var(--paper-warm);
}

body.notes-layout-article .notes-scope .part-header.purple,
body.notes-layout-modular .notes-scope .topic-header.b1 {
  border-color: var(--accent-p);
  background: var(--accent-p-bg);
}

body.notes-layout-article .notes-scope .part-header.green,
body.notes-layout-modular .notes-scope .topic-header.b2 {
  border-color: var(--accent-n);
  background: var(--accent-n-bg);
}

body.notes-layout-article .notes-scope .part-header.blue,
body.notes-layout-modular .notes-scope .topic-header.b4 {
  border-color: var(--accent-b);
  background: var(--accent-b-bg);
}

body.notes-layout-article .notes-scope .callout.note,
body.notes-layout-modular .notes-scope .callout.info {
  background: var(--accent-b-bg);
  border-color: var(--accent-b-mid);
  color: var(--accent-b);
}

body.notes-layout-article .notes-scope .callout.success,
body.notes-layout-modular .notes-scope .callout.tip {
  background: var(--accent-n-bg);
  border-color: var(--accent-n-mid);
  color: var(--accent-n);
}

body.notes-layout-article .notes-scope th,
body.notes-layout-modular .notes-scope thead th {
  background: var(--paper-cream);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 10px 14px;
  border: 1px solid var(--rule);
  text-align: left;
  color: var(--ink);
}

body.notes-layout-article .notes-scope .compare-box,
body.notes-layout-modular .notes-scope .col-box {
  background: var(--paper-cream);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 14px 16px;
}

body.notes-layout-article .notes-scope .act-card,
body.notes-layout-modular .notes-scope .op-box {
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 14px;
  background: var(--paper);
}

body.notes-layout-article .notes-scope .algo-step:last-child,
body.notes-layout-modular .notes-scope .def-item:last-child,
body.notes-layout-modular .notes-scope .t-item:last-child {
  border-bottom: none;
}

body.notes-layout-article .notes-toc-list,
body.notes-layout-modular .notes-toc-list {
  padding: 0 var(--sp-sm, 8px) var(--sp-md, 16px);
}

body.notes-layout-article .notes-toc-item,
body.notes-layout-modular .notes-toc-item {
  display: block;
  padding: 6px 12px;
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  margin-bottom: 2px;
}

body.notes-layout-article .notes-toc-item:hover,
body.notes-layout-article .notes-toc-item.active,
body.notes-layout-modular .notes-toc-item:hover,
body.notes-layout-modular .notes-toc-item.active {
  color: var(--accent-gold);
  background: var(--accent-glow);
}

body.notes-layout-article .notes-toc-item.sub,
body.notes-layout-modular .notes-toc-item.sub {
  padding-left: 22px;
  font-size: 0.67rem;
  color: var(--text-muted);
}

body.notes-layout-article .notes-toc-item.sub:hover,
body.notes-layout-article .notes-toc-item.sub.active,
body.notes-layout-modular .notes-toc-item.sub:hover,
body.notes-layout-modular .notes-toc-item.sub.active {
  color: var(--accent-gold);
  background: var(--accent-glow);
}

body.notes-layout-article .progress-bar-wrap,
body.notes-layout-modular .progress-bar-wrap {
  height: 2px;
  background: var(--border-subtle);
  margin: 0 12px var(--sp-md, 16px);
  border-radius: 2px;
  overflow: hidden;
}

body.notes-layout-article .progress-bar-fill,
body.notes-layout-modular .progress-bar-fill {
  height: 100%;
  background: var(--accent-gold);
  width: 0%;
  transition: width 0.1s;
  border-radius: 2px;
}

/* Article layout variant styles (scoped to body.notes-layout-article) */
/* ── NOTES SCOPE: all original notes CSS prefixed ───────── */
body.notes-layout-article .notes-scope {
  /* Glossary tag token for article layout. */
  --tag-bg:#eae6dc;
}

body.theme-dark.notes-layout-article .notes-scope {
  --tag-bg:#2b261f;
}

/* Notes body content */
body.notes-layout-article .notes-scope h2 { font-family: 'Playfair Display', serif; font-size: 28px; font-weight: 700; line-height: 1.2; color: var(--ink); }
body.notes-layout-article .notes-scope .part-header { margin: 48px 0 0; padding: 24px 28px; border-left: 4px solid var(--ink); background: var(--paper-warm); border-radius: 0 4px 4px 0; }
body.notes-layout-article .notes-scope .part-num { font-family: 'IBM Plex Mono', monospace; font-size: 10px; letter-spacing: .15em; color: var(--ink-faint); text-transform: uppercase; margin-bottom: 5px; }
body.notes-layout-article .notes-scope .formula-block { margin: 18px 0; background: var(--paper-cream); border: 1px solid var(--rule); border-left: 3px solid var(--ink); border-radius: 0 4px 4px 0; padding: 16px 20px; overflow-x: auto; }
body.notes-layout-article .notes-scope .formula-block.purple { border-left-color: var(--accent-p); }
body.notes-layout-article .notes-scope .formula-block.green { border-left-color: var(--accent-n); }
body.notes-layout-article .notes-scope .formula-block.blue { border-left-color: var(--accent-b); }
body.notes-layout-article .notes-scope .formula-block.orange { border-left-color: var(--accent-o); }
body.notes-layout-article .notes-scope .formula-label { font-family: 'IBM Plex Mono', monospace; font-size: 10px; letter-spacing: .13em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 5px; }
body.notes-layout-article .notes-scope .term-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; margin: 16px 0; }
body.notes-layout-article .notes-scope .term-card { border: 1px solid var(--rule); border-radius: 4px; background: var(--paper); padding: 12px 14px; }
body.notes-layout-article .notes-scope .term-name { font-family: 'IBM Plex Mono', monospace; font-size: 11px; font-weight: 500; color: var(--ink); margin-bottom: 4px; letter-spacing: .04em; }
body.notes-layout-article .notes-scope .term-def { font-size: 12px; color: var(--ink-soft); line-height: 1.6; }
body.notes-layout-article .notes-scope .callout { margin: 18px 0; padding: 14px 18px; border-radius: 4px; border: 1px solid; font-size: 13px; line-height: 1.7; }
body.notes-layout-article .notes-scope .callout.insight { background: var(--accent-p-bg); border-color: var(--accent-p-mid); color: var(--accent-p); }
body.notes-layout-article .notes-scope table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 13px; }
body.notes-layout-article .notes-scope pre, body.notes-layout-article .notes-scope code { font-family: 'IBM Plex Mono', monospace; font-size: 12px; }
body.notes-layout-article .notes-scope pre { background: var(--paper-cream); border: 1px solid var(--rule); border-radius: 4px; padding: 14px 18px; overflow-x: auto; line-height: 1.6; }
body.notes-layout-article .notes-scope .algo-box { margin: 18px 0; border: 1px solid var(--rule); border-radius: 4px; overflow: hidden; }
body.notes-layout-article .notes-scope .algo-header { background: var(--paper-warm); padding: 10px 18px; font-family: 'IBM Plex Mono', monospace; font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-faint); border-bottom: 1px solid var(--rule); }
body.notes-layout-article .notes-scope .algo-step { display: flex; align-items: flex-start; padding: 10px 18px; border-bottom: 1px solid var(--rule-light); gap: 14px; font-size: 14px; color: var(--ink-soft); }
body.notes-layout-article .notes-scope .step-num { font-family: 'IBM Plex Mono', monospace; font-size: 11px; font-weight: 500; min-width: 32px; color: var(--ink-faint); padding-top: 3px; flex-shrink: 0; }
body.notes-layout-article .notes-scope .algo-body { padding: 16px 20px; font-family: 'IBM Plex Mono', monospace; font-size: 12px; line-height: 1.9; background: var(--paper); color: var(--ink-soft); }
body.notes-layout-article .notes-scope .algo-body span.kw { color: var(--accent-p); font-weight: 500; }
body.notes-layout-article .notes-scope .algo-body span.label { color: var(--ink-faint); font-size: 10px; letter-spacing: .06em; }
body.notes-layout-article .notes-scope .algo-body span.math { color: var(--ink); }

body.notes-layout-article .notes-scope .act-gallery { display: grid; grid-template-columns: repeat(auto-fill,minmax(185px,1fr)); gap: 14px; margin: 20px 0; }
body.notes-layout-article .notes-scope .act-name { font-family: 'IBM Plex Mono', monospace; font-size: 12px; font-weight: 500; color: var(--ink); margin-bottom: 6px; }
body.notes-layout-article .notes-scope .act-range { font-size: 12px; color: var(--ink-faint); margin-top: 4px; }
body.notes-layout-article .notes-scope .act-note { font-size: 12px; color: var(--ink-faint); margin-top: 4px; line-height: 1.5; }

body.notes-layout-article .notes-scope .compare-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 14px 0; }
body.notes-layout-article .notes-scope .compare-box h5 { font-family: 'IBM Plex Mono', monospace; font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 8px; }

body.notes-layout-article .notes-scope .cnn-arch { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; margin: 20px 0; row-gap: 12px; }
body.notes-layout-article .notes-scope .layer-box { text-align: center; padding: 0 3px; }
body.notes-layout-article .notes-scope .layer-rect { border: 1.5px solid; border-radius: 4px; padding: 8px 10px; font-family: 'IBM Plex Mono', monospace; font-size: 10px; font-weight: 500; letter-spacing: .05em; min-width: 66px; margin: 0 auto 4px; }
body.notes-layout-article .notes-scope .layer-rect.input { border-color: var(--rule); color: var(--ink-faint); background: var(--paper-warm); }
body.notes-layout-article .notes-scope .layer-rect.conv { border-color: var(--accent-p); color: var(--accent-p); background: var(--accent-p-bg); }
body.notes-layout-article .notes-scope .layer-rect.pool { border-color: var(--accent-n); color: var(--accent-n); background: var(--accent-n-bg); }
body.notes-layout-article .notes-scope .layer-rect.fc { border-color: var(--accent-b); color: var(--accent-b); background: var(--accent-b-bg); }
body.notes-layout-article .notes-scope .layer-rect.out { border-color: var(--accent-r); color: var(--accent-r); background: var(--accent-r-bg); }
body.notes-layout-article .notes-scope .layer-label { font-size: 10px; color: var(--ink-faint); font-family: 'IBM Plex Mono', monospace; }
body.notes-layout-article .notes-scope .arrow { color: var(--rule); font-size: 18px; padding: 0 2px; align-self: center; margin-bottom: 12px; }

body.notes-layout-article .notes-scope ul, body.notes-layout-article .notes-scope ol { padding-left: 20px; margin-bottom: 12px; color: var(--ink-soft); }
body.notes-layout-article .notes-scope li { margin-bottom: 6px; font-size: 14px; line-height: 1.7; }
body.notes-layout-article .notes-scope .diagram-container { margin: 18px 0; padding: 20px; background: var(--paper-warm); border: 1px solid var(--rule); border-radius: 4px; text-align: center; overflow-x: auto; }
body.notes-layout-article .notes-scope svg text { font-family: 'IBM Plex Mono', monospace !important; }
body.notes-layout-article .notes-scope .tag { display: inline-block; font-family: 'IBM Plex Mono', monospace; font-size: 10px; background: var(--tag-bg); padding: 2px 8px; border-radius: 2px; color: var(--ink-faint); letter-spacing: .06em; }

/* Additional shared article components used by IF3151 and SISFOR notes. */
body.notes-layout-article .notes-scope .callout {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

body.notes-layout-article .notes-scope .callout-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  margin-top: 2px;
}

body.notes-layout-article .notes-scope .callout-icon svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

body.notes-layout-article .notes-scope .callout-body {
  min-width: 0;
}

body.notes-layout-article .notes-scope .callout-title {
  font-weight: 600;
  font-size: 13px;
  margin-bottom: 4px;
}

body.notes-layout-article .notes-scope .callout-text {
  font-size: 13px;
  margin-bottom: 0;
  color: inherit;
}

body.notes-layout-article .notes-scope .diagram-wrap {
  margin: 20px 0;
  background: var(--paper-warm);
  border: 1px solid var(--rule);
  border-radius: 6px;
  overflow: hidden;
}

body.notes-layout-article .notes-scope .diagram-wrap .diagram-title {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding: 9px 16px 0;
}

body.notes-layout-article .notes-scope .diagram-svg {
  width: 100%;
  display: block;
  padding: 8px 0;
}

body.notes-layout-article .notes-scope .heuristic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
  margin: 16px 0;
}

body.notes-layout-article .notes-scope .heuristic-card {
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 14px;
  background: var(--paper-warm);
  transition: box-shadow 0.15s ease;
}

body.notes-layout-article .notes-scope .heuristic-card:hover {
  box-shadow: 0 8px 20px rgba(20, 16, 11, 0.08);
}

body.notes-layout-article .notes-scope .heuristic-num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  color: var(--accent-p);
  letter-spacing: .06em;
  margin-bottom: 5px;
}

body.notes-layout-article .notes-scope .heuristic-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: 4px;
}

body.notes-layout-article .notes-scope .heuristic-desc {
  font-size: 12px;
  color: var(--ink-soft);
  line-height: 1.55;
}

body.notes-layout-article .notes-scope .term-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin: 16px 0;
}

body.notes-layout-article .notes-scope .term-table th {
  background: var(--paper-cream);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 8px 12px;
  text-align: left;
  border: 1px solid var(--rule);
  color: var(--ink-faint);
}

body.notes-layout-article .notes-scope .term-table td {
  padding: 8px 12px;
  border: 1px solid var(--rule);
  vertical-align: top;
  line-height: 1.55;
  color: var(--ink-soft);
}

body.notes-layout-article .notes-scope .term-table .term {
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

body.notes-layout-article .notes-scope .badge {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 3px;
  letter-spacing: .06em;
  font-weight: 600;
}

body.notes-layout-article .notes-scope .badge-blue,
body.notes-layout-article .notes-scope .badge.blue {
  background: var(--accent-b-bg);
  color: var(--accent-b);
  border: 1px solid var(--accent-b-mid);
}

body.notes-layout-article .notes-scope .badge-green,
body.notes-layout-article .notes-scope .badge.green {
  background: var(--accent-n-bg);
  color: var(--accent-n);
  border: 1px solid var(--accent-n-mid);
}

body.notes-layout-article .notes-scope .badge-purple,
body.notes-layout-article .notes-scope .badge.purple {
  background: var(--accent-p-bg);
  color: var(--accent-p);
  border: 1px solid var(--accent-p-mid);
}

body.notes-layout-article .notes-scope .badge-orange,
body.notes-layout-article .notes-scope .badge.orange {
  background: var(--accent-o-bg);
  color: var(--accent-o);
  border: 1px solid var(--accent-o-mid);
}

body.notes-layout-article .notes-scope .badge.red {
  background: var(--accent-r-bg);
  color: var(--accent-r);
  border: 1px solid var(--accent-r-mid);
}

body.notes-layout-article .notes-scope .cog-process-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 16px 0;
}

body.notes-layout-article .notes-scope .cog-chip {
  flex: 1 1 calc(33% - 10px);
  min-width: 160px;
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 14px;
  background: var(--paper);
}

body.notes-layout-article .notes-scope .cog-chip .cog-icon {
  width: 28px;
  height: 28px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  color: var(--accent-b);
}

body.notes-layout-article .notes-scope .cog-chip .cog-icon svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

body.notes-layout-article .notes-scope .cog-chip .cog-label {
  font-weight: 600;
  font-size: 13px;
  color: var(--ink);
  margin-bottom: 4px;
}

body.notes-layout-article .notes-scope .cog-chip .cog-text {
  font-size: 12px;
  color: var(--ink-soft);
  line-height: 1.55;
}

body.notes-layout-article .notes-scope .emotion-levels {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 16px 0;
}

body.notes-layout-article .notes-scope .emotion-level {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 8px;
  border: 1px solid transparent;
}

body.notes-layout-article .notes-scope .emotion-level .el-num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  min-width: 20px;
}

body.notes-layout-article .notes-scope .emotion-level .el-name {
  font-weight: 600;
  font-size: 13px;
  min-width: 100px;
}

body.notes-layout-article .notes-scope .emotion-level .el-desc {
  font-size: 12px;
  color: var(--ink-soft);
  line-height: 1.45;
}

body.notes-layout-article .notes-scope .el-visceral {
  background: var(--accent-o-bg);
  border-color: var(--accent-o-mid);
}

body.notes-layout-article .notes-scope .el-behavioral {
  background: var(--accent-b-bg);
  border-color: var(--accent-b-mid);
}

body.notes-layout-article .notes-scope .el-reflective {
  background: var(--accent-n-bg);
  border-color: var(--accent-n-mid);
}

body.notes-layout-article .notes-scope .process-timeline {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin: 16px 0;
  overflow-x: auto;
}

body.notes-layout-article .notes-scope .pt-step {
  flex: 1;
  min-width: 100px;
  position: relative;
  text-align: center;
  padding: 0 8px;
}

body.notes-layout-article .notes-scope .pt-step:not(:last-child)::after {
  content: '\2192';
  position: absolute;
  right: -6px;
  top: 12px;
  font-size: 1rem;
  color: var(--ink-faint);
}

body.notes-layout-article .notes-scope .pt-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  margin: 0 auto 8px;
}

body.notes-layout-article .notes-scope .pt-circle svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

body.notes-layout-article .notes-scope .pt-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.35;
}

body.notes-layout-article .notes-scope .pt-sub {
  font-size: 10px;
  color: var(--ink-faint);
  margin-top: 2px;
  line-height: 1.4;
}

body.notes-layout-article .notes-scope .gulf-diagram {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin: 16px 0;
  border: 1px solid var(--rule);
  border-radius: 10px;
  overflow: hidden;
}

body.notes-layout-article .notes-scope .gulf-user,
body.notes-layout-article .notes-scope .gulf-system {
  flex: 1;
  padding: 16px;
}

body.notes-layout-article .notes-scope .gulf-user {
  background: var(--accent-b-bg);
}

body.notes-layout-article .notes-scope .gulf-system {
  background: var(--accent-p-bg);
}

body.notes-layout-article .notes-scope .gulf-middle {
  width: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px;
  gap: 8px;
  background: var(--paper-warm);
  border-left: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
}

body.notes-layout-article .notes-scope .gulf-box {
  font-size: 11px;
  text-align: center;
  border-radius: 8px;
  padding: 8px 6px;
  width: 100%;
}

body.notes-layout-article .notes-scope .gulf-exec {
  background: var(--accent-b-bg);
  color: var(--accent-b);
}

body.notes-layout-article .notes-scope .gulf-eval {
  background: var(--accent-p-bg);
  color: var(--accent-p);
}

body.notes-layout-article .notes-scope .gulf-title {
  font-weight: 700;
  font-size: 13px;
  margin-bottom: 8px;
}

body.notes-layout-article .notes-scope .gulf-item {
  font-size: 12px;
  color: var(--ink-soft);
  margin-bottom: 4px;
  line-height: 1.45;
}

body.notes-layout-article .notes-scope .gulf-icon {
  display: inline-flex;
  align-items: center;
  vertical-align: middle;
  margin-right: 4px;
}

body.notes-layout-article .notes-scope .gulf-icon svg {
  width: 13px;
  height: 13px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

body.notes-layout-article .notes-scope .decision-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin: 16px 0;
}

body.notes-layout-article .notes-scope .decision-table th {
  background: #1f2937;
  color: #f5f1e8;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: .08em;
  padding: 10px 12px;
  text-align: left;
  border: 1px solid #1f2937;
}

body.notes-layout-article .notes-scope .decision-table td {
  padding: 8px 12px;
  border: 1px solid var(--rule);
  vertical-align: middle;
}

body.notes-layout-article .notes-scope .decision-table tr:nth-child(even) td {
  background: var(--paper-warm);
}

body.notes-layout-article .notes-scope .decision-table .highlight {
  font-weight: 600;
  color: var(--accent-p);
}

body.theme-dark.notes-layout-article .notes-scope .decision-table th {
  background: #0f172a;
  color: #e2e8f0;
  border-color: #0f172a;
}

body.notes-layout-article .notes-scope .fitts-demo {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 16px 0;
  padding: 16px;
  background: var(--paper-warm);
  border: 1px solid var(--rule);
  border-radius: 10px;
}

body.notes-layout-article .notes-scope .fitts-formula {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
  background: var(--paper);
  padding: 10px 20px;
  border-radius: 8px;
  border: 1px solid var(--rule);
}

body.notes-layout-article .notes-scope .fitts-explanation {
  font-size: 12px;
  color: var(--ink-soft);
  line-height: 1.6;
  flex: 1;
}

body.notes-layout-article .notes-scope .persona-card {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 16px;
  padding: 16px;
  border: 1px solid var(--rule);
  border-radius: 10px;
  margin: 16px 0;
  background: var(--paper-warm);
}

body.notes-layout-article .notes-scope .persona-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-p), var(--accent-b));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: #fff;
  flex-shrink: 0;
}

body.notes-layout-article .notes-scope .persona-name {
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 2px;
  color: var(--ink);
}

body.notes-layout-article .notes-scope .persona-meta {
  font-size: 11px;
  color: var(--ink-faint);
  margin-bottom: 8px;
  font-family: 'IBM Plex Mono', monospace;
}

body.notes-layout-article .notes-scope .persona-body {
  font-size: 12px;
  color: var(--ink-soft);
  line-height: 1.6;
}

body.notes-layout-article .notes-scope .recap-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px;
  margin: 16px 0;
}

body.notes-layout-article .notes-scope .recap-card {
  border-left: 3px solid var(--accent-p);
  padding: 12px 14px;
  background: var(--paper-warm);
  border-radius: 0 8px 8px 0;
}

body.notes-layout-article .notes-scope .recap-card .rc-topic {
  font-weight: 700;
  font-size: 13px;
  color: var(--ink);
  margin-bottom: 4px;
}

body.notes-layout-article .notes-scope .recap-card .rc-points {
  font-size: 12px;
  color: var(--ink-soft);
  line-height: 1.6;
}

body.notes-layout-article .notes-scope .recap-card.purple { border-color: var(--accent-p); }
body.notes-layout-article .notes-scope .recap-card.green { border-color: var(--accent-n); }
body.notes-layout-article .notes-scope .recap-card.blue { border-color: var(--accent-b); }
body.notes-layout-article .notes-scope .recap-card.orange { border-color: var(--accent-o); }
body.notes-layout-article .notes-scope .recap-card.red { border-color: var(--accent-r); }
body.notes-layout-article .notes-scope .recap-card.pink { border-color: #db2777; }
body.notes-layout-article .notes-scope .recap-card.teal { border-color: #0d9488; }
body.notes-layout-article .notes-scope .recap-card.indigo { border-color: #4f46e5; }

body.notes-layout-article .notes-scope .viz-container {
  margin: 20px 0;
  border: 1px solid var(--rule);
  border-radius: 6px;
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  background: var(--paper-warm);
}

body.notes-layout-article .notes-scope .viz-container > svg {
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: auto;
  box-sizing: border-box;
  padding: 10px;
}

@media (max-width: 760px) {
  body.notes-layout-article .notes-scope .viz-container > svg {
    width: max(100%, 640px);
    max-width: none;
    min-width: 640px;
  }
}

body.notes-layout-article .notes-scope .viz-caption {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--ink-faint);
  padding: 8px 16px;
  border-top: 1px solid var(--rule);
}

body.notes-layout-article .notes-scope .two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 16px 0;
}

body.notes-layout-article .notes-scope .col-card {
  background: var(--paper-warm);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 14px 16px;
}

body.notes-layout-article .notes-scope .col-card .col-title {
  font-weight: 600;
  font-size: 13px;
  margin-bottom: 8px;
  color: var(--ink);
}

body.notes-layout-article .notes-scope .term-grid.term-grid-pairs {
  grid-template-columns: auto 1fr;
  gap: 6px 16px;
  margin: 12px 0 18px;
  font-size: 13px;
  align-items: baseline;
}

body.notes-layout-article .notes-scope .term-grid.term-grid-pairs .term {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent-p);
  white-space: nowrap;
  padding: 2px 0;
}

body.notes-layout-article .notes-scope .term-grid.term-grid-pairs .def {
  color: var(--ink-soft);
}

body.notes-layout-article .notes-scope .comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin: 16px 0;
}

body.notes-layout-article .notes-scope .comparison-table th {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .08em;
  background: var(--paper-cream);
  padding: 8px 12px;
  text-align: left;
  border: 1px solid var(--rule);
  color: var(--ink-faint);
}

body.notes-layout-article .notes-scope .comparison-table td {
  padding: 8px 12px;
  border: 1px solid var(--rule);
  vertical-align: top;
  color: var(--ink-soft);
}

body.notes-layout-article .notes-scope .comparison-table tr:nth-child(even) td {
  background: var(--paper-warm);
}

body.notes-layout-article .notes-scope .goal-lbl {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}

body.notes-layout-article .notes-scope .goal-desc {
  font-family: 'Source Serif 4', serif;
  font-size: 10px;
}

@media (max-width: 900px) {
  body.notes-layout-article .notes-scope .two-col {
    grid-template-columns: 1fr;
  }

  body.notes-layout-article .notes-scope .cog-chip {
    flex-basis: 100%;
  }

  body.notes-layout-article .notes-scope .gulf-diagram {
    flex-direction: column;
  }

  body.notes-layout-article .notes-scope .gulf-middle {
    width: 100%;
    border-left: none;
    border-right: none;
    border-top: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
  }

  body.notes-layout-article .notes-scope .fitts-demo {
    flex-direction: column;
    align-items: flex-start;
  }

  body.notes-layout-article .notes-scope .persona-card {
    grid-template-columns: 1fr;
  }
}

body.notes-layout-article .notes-scope .glossary-grid { display: grid; grid-template-columns: repeat(1,minmax(0,1fr)); gap: 12px 14px; margin: 14px 0 28px; }
body.notes-layout-article .notes-scope .glossary-item { border: 1px solid var(--rule); border-radius: 4px; background: var(--paper); padding: 12px 14px; color: var(--ink-soft); line-height: 1.6; }
body.notes-layout-article .notes-scope .glossary-item .tag { display: inline-block; margin: 0 0 8px 0; }

@media(min-width:640px) { body.notes-layout-article .notes-scope .glossary-grid { grid-template-columns: repeat(2,minmax(0,1fr)); } }
@media(min-width:980px) { body.notes-layout-article .notes-scope .glossary-grid { grid-template-columns: repeat(3,minmax(0,1fr)); } }
@media(min-width:1320px) { body.notes-layout-article .notes-scope .glossary-grid { grid-template-columns: repeat(4,minmax(0,1fr)); } }
@media(max-width:600px) { body.notes-layout-article .notes-scope .compare-row { grid-template-columns: 1fr; } }
@media(max-width: 820px) {
  body.notes-layout-article .notes-scope table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; white-space: nowrap; }
  body.notes-layout-article .notes-scope .formula-block,
  body.notes-layout-article .notes-scope .algo-box,
  body.notes-layout-article .notes-scope .compare-box,
  body.notes-layout-article .notes-scope .diagram-container,
  body.notes-layout-article .notes-scope pre { overflow-x: auto; -webkit-overflow-scrolling: touch; }
}

/* Modular layout variant styles (scoped to body.notes-layout-modular) */
body.notes-layout-modular .notes-scope {
  --muted: var(--ink-faint);
  --accent1: var(--accent-b);
  --accent2: var(--accent-n);

  --code-bg:#f2ede4;
  --code-bg-inline:#ebe4d8;
  --code-border:#c7b9a2;
  --code-ink:#20170f;
  --code-comment:#6f6252;
  --code-keyword:#6f2da8;
  --code-function:#12528a;
  --code-operator:#8f4d06;
  --code-string:#1f6d40;
  --code-number:#8c2222;
  --code-highlight-blue:#0f4d84;
  --code-highlight-green:#1e6a41;
  --code-highlight-orange:#8e4c09;
}

body.theme-dark.notes-layout-modular .notes-scope {
  --muted: var(--ink-faint);
  --accent1: var(--accent-b);
  --accent2: var(--accent-n);

  --code-bg:#1b1a17;
  --code-bg-inline:#26231e;
  --code-border:#4b4338;
  --code-ink:#f3efe8;
  --code-comment:#b4aa98;
  --code-keyword:#d7b6ff;
  --code-function:#8dc6ff;
  --code-operator:#ffbe75;
  --code-string:#9ce5b5;
  --code-number:#ff9e9e;
  --code-highlight-blue:#9bc9ff;
  --code-highlight-green:#b5efcc;
  --code-highlight-orange:#ffd295;
}

body.notes-layout-modular .notes-scope .topic { margin-bottom: 56px; }
body.notes-layout-modular .notes-scope .topic-header {
  margin: 48px 0 22px;
  padding: 24px 28px;
  border-left: 4px solid var(--accent-p);
  background: var(--accent-p-bg);
  border-radius: 0 4px 4px 0;
}
body.notes-layout-modular .notes-scope .topic-header.b3 { border-color: var(--accent-o); background: var(--accent-o-bg); }
body.notes-layout-modular .notes-scope .topic-num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10px;
  letter-spacing: .15em;
  color: var(--ink-faint);
  text-transform: uppercase;
  margin-bottom: 5px;
  display: block;
}
body.notes-layout-modular .notes-scope .topic-title {
  font-family: 'Playfair Display', serif;
  font-size: 28px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--ink);
}
body.notes-layout-modular .notes-scope .topic-badge { display: none; }

body.notes-layout-modular .notes-scope .card-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(220px,1fr)); gap: 12px; margin: 16px 0; }
body.notes-layout-modular .notes-scope .card { border: 1px solid var(--rule); border-radius: 4px; background: var(--paper); padding: 14px 16px; }
body.notes-layout-modular .notes-scope .card.c-blue { border-top: 3px solid var(--accent-b); }
body.notes-layout-modular .notes-scope .card.c-green { border-top: 3px solid var(--accent-n); }
body.notes-layout-modular .notes-scope .card.c-orange { border-top: 3px solid var(--accent-o); }
body.notes-layout-modular .notes-scope .card.c-purple { border-top: 3px solid var(--accent-p); }
body.notes-layout-modular .notes-scope .card.c-yellow { border-top: 3px solid var(--accent-r); }
body.notes-layout-modular .notes-scope .card-title { font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 6px; }

body.notes-layout-modular .notes-scope .def-list { background: var(--paper); border: 1px solid var(--rule); border-radius: 4px; overflow-x: auto; margin: 16px 0; }
body.notes-layout-modular .notes-scope .def-item { display: grid; grid-template-columns: 140px 1fr; border-bottom: 1px solid var(--rule); min-width: max-content; }
body.notes-layout-modular .notes-scope .def-term { padding: 10px 14px; background: var(--paper-cream); font-family: 'IBM Plex Mono', monospace; font-size: 12px; font-weight: 500; color: var(--ink); border-right: 1px solid var(--rule); }
body.notes-layout-modular .notes-scope .def-desc { padding: 10px 14px; font-size: 13px; color: var(--ink-soft); background: var(--paper); }

body.notes-layout-modular .notes-scope .table-wrap { border: 1px solid var(--rule); border-radius: 4px; overflow-x: auto; margin: 16px 0; background: var(--paper); }
body.notes-layout-modular .notes-scope table { width: 100%; border-collapse: collapse; margin: 0; font-size: 13px; min-width: 560px; }

body.notes-layout-modular .notes-scope pre, body.notes-layout-modular .notes-scope code { font-family: 'IBM Plex Mono', monospace; font-size: 12px; color: var(--code-ink); }
body.notes-layout-modular .notes-scope pre { background: var(--code-bg); border: 1px solid var(--code-border); border-radius: 4px; padding: 14px 16px; overflow-x: auto; line-height: 1.6; }
body.notes-layout-modular .notes-scope code { background: var(--code-bg-inline); border: 1px solid var(--code-border); padding: 1px 6px; border-radius: 3px; color: var(--code-ink); }
body.notes-layout-modular .notes-scope pre code { background: none; border: none; padding: 0; color: inherit; }

body.notes-layout-modular .notes-scope .formula { margin: 16px 0; background: var(--paper-cream); border: 1px solid var(--rule); border-left: 3px solid var(--accent-p); border-radius: 0 4px 4px 0; padding: 16px 20px; overflow-x: auto; }
body.notes-layout-modular .notes-scope .formula-label { font-family: 'IBM Plex Mono', monospace; font-size: 10px; letter-spacing: .13em; text-transform: uppercase; color: var(--ink-faint); margin-bottom: 5px; display: block; }

body.notes-layout-modular .notes-scope .callout { margin: 16px 0; padding: 14px 16px; border-radius: 4px; border: 1px solid; font-size: 13px; line-height: 1.7; display: flex; gap: 10px; align-items: flex-start; }
body.notes-layout-modular .notes-scope .callout.danger { background: var(--accent-r-bg); border-color: var(--accent-r-mid); color: var(--accent-r); }
body.notes-layout-modular .notes-scope .callout-title { font-weight: 600; font-size: 13px; margin-bottom: 4px; }
body.notes-layout-modular .notes-scope .callout-text { font-size: 13px; margin-bottom: 0; }
body.notes-layout-modular .notes-scope .callout-body { min-width: 0; }
body.notes-layout-modular .notes-scope .callout-icon { display: inline-flex; align-items: center; justify-content: center; width: 20px; height: 20px; flex: 0 0 auto; margin-top: 2px; }
body.notes-layout-modular .notes-scope .callout-icon svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }

body.notes-layout-modular .notes-scope .icon-inline { display: inline-flex; width: 15px; height: 15px; margin-right: 6px; vertical-align: -2px; align-items: center; justify-content: center; }
body.notes-layout-modular .notes-scope .icon-inline svg { width: 100%; height: 100%; stroke: currentColor; fill: none; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
body.notes-layout-modular .notes-scope .status-pill { display: inline-flex; align-items: center; gap: 4px; font-weight: 600; }
body.notes-layout-modular .notes-scope .status-pill .icon-inline { width: 13px; height: 13px; margin-right: 0; }

body.notes-layout-modular .notes-scope ul.notes { list-style: none; padding-left: 0; margin: 12px 0 16px; }
body.notes-layout-modular .notes-scope ul.notes li { position: relative; padding-left: 20px; margin-bottom: 6px; font-size: 14px; color: var(--ink-soft); }
body.notes-layout-modular .notes-scope ul.notes li::before { content: '›'; position: absolute; left: 0; color: var(--accent-b); font-weight: 700; }
body.notes-layout-modular .notes-scope ul.notes li.green::before { color: var(--accent-n); }
body.notes-layout-modular .notes-scope ul.notes li.orange::before { color: var(--accent-o); }
body.notes-layout-modular .notes-scope ul.notes li.purple::before { color: var(--accent-p); }

body.notes-layout-modular .notes-scope .timeline { border-left: 2px solid var(--rule); margin-left: 12px; padding-left: 20px; }
body.notes-layout-modular .notes-scope .t-item { position: relative; padding: 10px 0; border-bottom: 1px solid var(--rule-light); }
body.notes-layout-modular .notes-scope .t-item::before { content: ''; position: absolute; left: -26px; top: 17px; width: 10px; height: 10px; border-radius: 50%; background: var(--accent-p); border: 2px solid var(--paper); }
body.notes-layout-modular .notes-scope .t-label { font-family: 'IBM Plex Mono', monospace; font-size: 12px; font-weight: 600; color: var(--accent-p); margin-bottom: 2px; }
body.notes-layout-modular .notes-scope .t-desc { font-size: 13px; color: var(--ink-soft); }

body.notes-layout-modular .notes-scope .op-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(220px,1fr)); gap: 12px; margin: 16px 0; }
body.notes-layout-modular .notes-scope .op-name { font-family: 'IBM Plex Mono', monospace; font-size: 12px; font-weight: 600; color: var(--accent-p); margin-bottom: 6px; }
body.notes-layout-modular .notes-scope .op-syntax { background: var(--paper-cream); border-radius: 3px; padding: 8px 12px; font-family: 'IBM Plex Mono', monospace; font-size: 12px; color: var(--ink); margin: 8px 0; }
body.notes-layout-modular .notes-scope .op-desc { font-size: 13px; color: var(--ink-soft); }

body.notes-layout-modular .notes-scope .two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 16px 0; }
body.notes-layout-modular .notes-scope .col-title { font-weight: 600; font-size: 14px; margin-bottom: 8px; color: var(--ink); }

body.notes-layout-modular .notes-scope .td-key { font-family: 'IBM Plex Mono', monospace; font-size: 12px; font-weight: 500; color: var(--ink); }
body.notes-layout-modular .notes-scope .green { color: var(--accent-n); }
body.notes-layout-modular .notes-scope .orange { color: var(--accent-o); }
body.notes-layout-modular .notes-scope .blue { color: var(--accent-b); }
body.notes-layout-modular .notes-scope .purple { color: var(--accent-p); }
body.notes-layout-modular .notes-scope .yellow { color: var(--accent-r); }

body.notes-layout-modular .notes-scope .kw { color: var(--code-keyword); }
body.notes-layout-modular .notes-scope .fn { color: var(--code-function); }
body.notes-layout-modular .notes-scope .op { color: var(--code-operator); }
body.notes-layout-modular .notes-scope .str { color: var(--code-string); }
body.notes-layout-modular .notes-scope .num { color: var(--code-number); }
body.notes-layout-modular .notes-scope .cm { color: var(--code-comment); font-style: italic; }
body.notes-layout-modular .notes-scope .hl-blue { color: var(--code-highlight-blue); }
body.notes-layout-modular .notes-scope .hl-green { color: var(--code-highlight-green); }
body.notes-layout-modular .notes-scope .hl-orange { color: var(--code-highlight-orange); }

@media (max-width: 900px) {
  body.notes-layout-modular .notes-scope {
    padding: 24px 18px;
  }
  body.notes-layout-modular .notes-cover {
    padding: 28px 20px 24px;
  }
  body.notes-layout-modular .notes-scope .two-col {
    grid-template-columns: 1fr;
  }
}

/* Note template styles (scoped to body.notes-layout-template) */
    body.notes-layout-template .note-hero {
      padding: var(--sp-xl) var(--sp-lg);
      border-bottom: 1px solid var(--border-subtle);
    }
    body.notes-layout-template .note-hero h1 {
      font-family: var(--font-display);
      font-size: 2.2rem;
      font-weight: 300;
      line-height: 1.2;
      margin-bottom: var(--sp-sm);
    }
    body.notes-layout-template .note-hero p {
      color: var(--text-secondary);
      max-width: 560px;
      line-height: 1.7;
    }
    body.notes-layout-template .note-body {
      padding: var(--sp-xl) var(--sp-lg);
      display: grid;
      gap: var(--sp-lg);
    }
    body.notes-layout-template .note-block {
      background: var(--bg-surface);
      border: 1px solid var(--border-subtle);
      border-radius: var(--r-md);
      padding: var(--sp-md);
    }
    body.notes-layout-template .note-block h2 {
      font-family: var(--font-display);
      font-size: 1.5rem;
      font-weight: 400;
      margin-bottom: var(--sp-sm);
    }
    body.notes-layout-template .note-block p {
      color: var(--text-secondary);
      line-height: 1.8;
    }
    body.notes-layout-template .note-meta {
      font-family: var(--font-mono);
      font-size: 0.7rem;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--text-muted);
    }

/* Mobile TOC drawer for notes pages */
.notes-toc-trigger {
  display: none;
  position: fixed;
  top: 12px;
  right: 12px;
  height: 42px;
  border-radius: var(--r-md, 12px);
  border: 1px solid var(--border-default);
  background: rgba(253, 250, 244, 0.78);
  color: var(--text-primary);
  padding: 0 12px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  z-index: 1300;
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.notes-toc-trigger:hover {
  border-color: var(--border-strong);
  background: rgba(253, 250, 244, 0.92);
}

body.theme-dark .notes-toc-trigger {
  background: rgba(19, 18, 16, 0.78);
}

body.theme-dark .notes-toc-trigger:hover {
  background: rgba(26, 25, 22, 0.92);
}

.notes-toc-trigger svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.notes-toc-overlay {
  display: none;
}

@media (max-width: 1100px) {
  body.notes-layout-article .notes-toc-trigger,
  body.notes-layout-modular .notes-toc-trigger {
    display: inline-flex;
  }

  body.notes-layout-article .notes-toc-overlay,
  body.notes-layout-modular .notes-toc-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(12, 11, 9, 0.36);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 1230;
  }

  body.notes-layout-article .sidebar-right,
  body.notes-layout-modular .sidebar-right {
    display: block !important;
    position: fixed !important;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(86vw, 340px) !important;
    max-width: 340px;
    height: 100vh !important;
    min-height: 100vh;
    height: 100dvh !important;
    padding: 20px 14px 18px !important;
    border-left: 1px solid var(--border-subtle);
    background: rgba(253, 250, 244, 0.78);
    transform: translateX(110%);
    transition: transform 0.24s var(--ease, cubic-bezier(0.16, 1, 0.3, 1));
    z-index: 1240;
    box-shadow: -18px 0 38px rgba(0, 0, 0, 0.24);
    overflow-y: auto;
    pointer-events: none;
    visibility: hidden;
    will-change: transform;
    backdrop-filter: blur(18px) saturate(1.08);
    -webkit-backdrop-filter: blur(18px) saturate(1.08);
  }

  body.notes-layout-article .sidebar-right > div,
  body.notes-layout-modular .sidebar-right > div {
    position: static !important;
    top: auto !important;
    padding-top: 0 !important;
  }

  body.theme-dark.notes-layout-article .sidebar-right,
  body.theme-dark.notes-layout-modular .sidebar-right {
    background: rgba(19, 18, 16, 0.78);
  }

  body.toc-drawer-open.notes-layout-article .notes-toc-overlay,
  body.toc-drawer-open.notes-layout-modular .notes-toc-overlay {
    opacity: 1;
    pointer-events: auto;
  }

  body.toc-drawer-open.notes-layout-article .sidebar-right,
  body.toc-drawer-open.notes-layout-modular .sidebar-right {
    transform: translateX(0);
    pointer-events: auto;
    visibility: visible;
  }

  body.toc-drawer-open.notes-layout-article,
  body.toc-drawer-open.notes-layout-modular {
    overflow: hidden;
  }

  body.notes-layout-article .page-header,
  body.notes-layout-modular .page-header {
    padding-right: 106px;
  }
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  .notes-toc-trigger {
    background: rgba(253, 250, 244, 0.96);
  }

  body.theme-dark .notes-toc-trigger {
    background: rgba(19, 18, 16, 0.96);
  }

  @media (max-width: 1100px) {
    body.notes-layout-article .notes-toc-overlay,
    body.notes-layout-modular .notes-toc-overlay {
      background: rgba(12, 11, 9, 0.52);
      backdrop-filter: none;
      -webkit-backdrop-filter: none;
    }

    body.notes-layout-article .sidebar-right,
    body.notes-layout-modular .sidebar-right {
      background: rgba(253, 250, 244, 0.98);
      backdrop-filter: none;
      -webkit-backdrop-filter: none;
    }

    body.theme-dark.notes-layout-article .sidebar-right,
    body.theme-dark.notes-layout-modular .sidebar-right {
      background: rgba(19, 18, 16, 0.98);
    }
  }
}

@media (max-width: 560px) {
  body.notes-layout-article .notes-toc-trigger,
  body.notes-layout-modular .notes-toc-trigger {
    width: 42px;
    padding: 0;
  }

  body.notes-layout-article .notes-toc-trigger-label,
  body.notes-layout-modular .notes-toc-trigger-label {
    display: none;
  }

  body.notes-layout-article .page-header,
  body.notes-layout-modular .page-header {
    padding-right: 64px;
  }
}