/* ============================================================
   Learning Machines — “Field Manual” design system
   Warm-paper curriculum print: hairline rules, serif voice,
   mono specimen labels, square corners, modality inks.
   Tokens are tone-aware via html[data-tone] (paper | white | slate),
   type via html[data-type] (field | signage),
   modality ink via html[data-ink] (full | subtle).
   ============================================================ */

:root, html[data-tone="paper"] {
  --bg:        #f2ebdc;
  --surface:   #f9f4e7;
  --surface-2: #ece4d2;
  --ink:       #23201a;
  --ink-soft:  #454034;
  --muted:     #6e6757;
  --rule:      #cfc2a6;
  --rule-soft: #ddd2ba;

  /* modality inks — printed, same chroma family */
  --m-text:  oklch(0.46 0.10 250);
  --m-image: oklch(0.50 0.11 45);
  --m-video: oklch(0.48 0.10 150);
  --m-cross: oklch(0.48 0.09 310);
  --m-text-tint:  oklch(0.46 0.10 250 / 0.10);
  --m-image-tint: oklch(0.50 0.11 45 / 0.10);
  --m-video-tint: oklch(0.48 0.10 150 / 0.10);
  --m-cross-tint: oklch(0.48 0.09 310 / 0.10);

  /* sampled poster palette — compressed GIF reference */
  --poster-sky: #77c5ee;
  --poster-periwinkle: #79a7f2;
  --poster-cyan: #7ad8ce;
  --poster-muted-teal: #84b1a0;
  --poster-mint: #84ecc3;
  --poster-green: #85d666;
  --poster-violet: #927adc;
  --poster-lavender: #9a8ef8;
  --poster-lime: #abf279;
  --poster-acid: #baf982;
  --poster-orchid: #d26fd2;
  --poster-rose-clay: #d38590;
  --poster-sun: #ddd56f;
  --poster-peach: #efb97a;
  --poster-hot-pink: #f36298;
  --poster-coral: #fb9890;
  --poster-wash-opacity: 0.42;
  --poster-stroke-opacity: 0.28;
  --poster-blend: multiply;

  --font-display: "Newsreader", Georgia, serif;
  --font-body: "Archivo", "Helvetica Neue", Helvetica, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --display-weight: 500;
  --display-tracking: -0.015em;
}

html[data-tone="white"] {
  --bg:        #fcfcfa;
  --surface:   #ffffff;
  --surface-2: #f1f1ec;
  --ink:       #191a1c;
  --ink-soft:  #3c3e42;
  --muted:     #67696e;
  --rule:      #d4d4cc;
  --rule-soft: #e4e4dd;
  --poster-wash-opacity: 0.34;
  --poster-stroke-opacity: 0.24;
  --poster-blend: multiply;
}

html[data-tone="slate"] {
  --bg:        #1a1b1e;
  --surface:   #202125;
  --surface-2: #28292e;
  --ink:       #e9e6dd;
  --ink-soft:  #c9c6bc;
  --muted:     #94917f;
  --rule:      #45443d;
  --rule-soft: #34332e;
  --m-text:  oklch(0.78 0.09 250);
  --m-image: oklch(0.78 0.10 50);
  --m-video: oklch(0.78 0.09 150);
  --m-cross: oklch(0.78 0.08 310);
  --m-text-tint:  oklch(0.78 0.09 250 / 0.13);
  --m-image-tint: oklch(0.78 0.10 50 / 0.13);
  --m-video-tint: oklch(0.78 0.09 150 / 0.13);
  --m-cross-tint: oklch(0.78 0.08 310 / 0.13);
  --poster-wash-opacity: 0.24;
  --poster-stroke-opacity: 0.30;
  --poster-blend: screen;
}

html[data-type="signage"] {
  --font-display: "Archivo", "Helvetica Neue", Helvetica, sans-serif;
  --display-weight: 700;
  --display-tracking: -0.03em;
}

/* subtle ink mode: modality hues collapse to ink */
html[data-ink="subtle"] {
  --m-text: var(--ink-soft);
  --m-image: var(--ink-soft);
  --m-video: var(--ink-soft);
  --m-cross: var(--ink-soft);
  --m-text-tint:  transparent;
  --m-image-tint: transparent;
  --m-video-tint: transparent;
  --m-cross-tint: transparent;
}

/* ---------------- session skin tokens ---------------- */
html[data-skin] {
  --skin-bg: var(--bg);
  --skin-ink: var(--ink);
  --skin-soft: var(--ink-soft);
  --skin-muted: var(--muted);
  --skin-accent: var(--m-cross);
  --skin-accent-2: var(--poster-cyan);
  --skin-panel: var(--surface);
  --skin-grid: color-mix(in oklab, var(--skin-accent) 22%, transparent);
  --skin-glow: 0 0 0 transparent;
}
html[data-skin="home-sampler"],
html[data-skin="docs-field"] {
  --skin-accent: var(--m-cross);
  --skin-accent-2: var(--poster-cyan);
  --skin-grid: color-mix(in oklab, var(--skin-accent) 18%, transparent);
}
html[data-skin="text-terminal"] {
  --skin-bg: #04110b;
  --skin-ink: #69ff99;
  --skin-soft: #b5ffd0;
  --skin-muted: #4cb56f;
  --skin-accent: #2dff78;
  --skin-accent-2: #1ea65a;
  --skin-panel: #071a10;
  --skin-grid: rgba(105, 255, 153, 0.16);
  --skin-glow: 0 0 18px rgba(105, 255, 153, 0.34);
}
html[data-skin="counting-signal"] {
  --skin-bg: #14100e;
  --skin-ink: #fff6e6;
  --skin-soft: #d6c8b4;
  --skin-muted: #69ff99;
  --skin-accent: #69ff99;
  --skin-accent-2: #4a8bc2;
  --skin-panel: #1b1512;
  --skin-grid: rgba(105, 255, 153, 0.18);
  --skin-glow: 0 0 18px rgba(105, 255, 153, 0.26);
}
html[data-skin="image-spectrum"] {
  --skin-bg: #f5e6ff;
  --skin-ink: #1a1122;
  --skin-soft: #40324a;
  --skin-muted: #6e5e76;
  --skin-accent: #21baf2;
  --skin-accent-2: #f362c8;
  --skin-panel: #fff3ff;
  --skin-grid: rgba(33, 186, 242, 0.22);
  --skin-glow: 0 0 24px rgba(122, 216, 206, 0.42);
}
html[data-skin="latent-nebula"] {
  --skin-bg: #090e1d;
  --skin-ink: #f7f2ff;
  --skin-soft: #d1c3df;
  --skin-muted: #f19cff;
  --skin-accent: #f19cff;
  --skin-accent-2: #00a7ff;
  --skin-panel: #10172a;
  --skin-grid: rgba(241, 156, 255, 0.16);
  --skin-glow: 0 0 26px rgba(0, 167, 255, 0.34);
}
html[data-skin="video-slitscan"] {
  --skin-bg: #11151b;
  --skin-ink: #f4f1e8;
  --skin-soft: #c7c4bd;
  --skin-muted: #7eea9a;
  --skin-accent: #23a5d2;
  --skin-accent-2: #b33b86;
  --skin-panel: #151a20;
  --skin-grid: rgba(35, 165, 210, 0.18);
  --skin-glow: 0 0 20px rgba(35, 165, 210, 0.28);
}
html[data-skin="studio-synthesis"] {
  --skin-bg: #18131d;
  --skin-ink: #f7f1e6;
  --skin-soft: #d8cfe2;
  --skin-muted: #d98cff;
  --skin-accent: var(--poster-hot-pink);
  --skin-accent-2: var(--poster-lime);
  --skin-panel: #211827;
  --skin-grid: rgba(243, 98, 152, 0.18);
  --skin-glow: 0 0 22px rgba(243, 98, 152, 0.28);
}
html[data-skin="worksheet-print"] {
  --skin-accent: var(--m-cross);
  --skin-accent-2: var(--poster-lime);
  --skin-panel: var(--surface);
  --skin-grid: color-mix(in oklab, var(--skin-accent) 12%, transparent);
}

/* ---------------- base ---------------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
::selection { background: var(--ink); color: var(--bg); }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  letter-spacing: var(--display-tracking);
  line-height: 1.06;
  margin: 0;
  text-wrap: balance;
}
h4 { font-family: var(--font-body); font-weight: 600; margin: 0; }
p { margin: 0; text-wrap: pretty; }
a { color: inherit; }
b, strong { font-weight: 600; }

.mono { font-family: var(--font-mono); }
.wrap { width: min(1160px, 100% - 48px); margin-inline: auto; }

.section { padding-block: clamp(56px, 8vw, 104px); }
.section-tight { padding-block: clamp(32px, 5vw, 56px); }

/* ---------------- eyebrow / section heads ---------------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 18px;
}

.sec-rule {
  border-top: 1px solid var(--ink);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding-top: 14px;
  margin-bottom: clamp(28px, 4vw, 44px);
}
.sec-rule .sec-no {
  flex: none;
  margin: 0;
  line-height: 1.2;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
}
.sec-rule .sec-note {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
  text-align: right;
}
.sec-rule .sec-note a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}
.sec-rule .sec-note a:hover { color: var(--ink); }
html[data-skin] .sec-rule {
  border-top-color: color-mix(in oklab, var(--skin-accent) 62%, var(--ink));
}
html[data-skin] .sec-rule .sec-no,
html[data-skin] .eyebrow {
  color: color-mix(in oklab, var(--skin-accent) 82%, var(--ink));
}
html[data-skin] .sec-rule .sec-note {
  /* Anchored on --ink-soft for WCAG AA in default Field view; keeps a skin
     tint. Identity modes override this separately. */
  color: color-mix(in oklab, var(--skin-muted) 32%, var(--ink-soft));
}

/* ---------------- nav ---------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--ink);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 60px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
  text-decoration: none;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
}
.brand .mark {
  width: 12px; height: 12px;
  background: var(--ink);
  display: inline-block;
}
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a {
  text-decoration: none;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.nav-links a:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; }
html[data-skin] .nav {
  border-bottom-color: color-mix(in oklab, var(--skin-accent) 44%, var(--ink));
}
html[data-skin] .brand .mark {
  background: color-mix(in oklab, var(--skin-accent) 72%, var(--ink));
}
html[data-skin] .nav-links a:hover {
  color: color-mix(in oklab, var(--skin-accent) 72%, var(--ink));
}

/* ---------------- buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 12px 20px;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease, transform 120ms ease;
}
.btn:hover { background: var(--ink); color: var(--bg); }
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: transparent; color: var(--ink); }
.btn-sm { padding: 8px 14px; font-size: 12px; }
.nav-links .btn { color: var(--ink); }
.nav-links .btn:hover { color: var(--bg); }
.nav-links .btn-primary { color: var(--bg); }
.nav-links .btn-primary:hover { color: var(--ink); }

/* ---------------- modality marks & stamps ---------------- */
.modsq {
  width: 9px; height: 9px;
  display: inline-block;
  flex: none;
  background: var(--ink);
}
.modsq.text  { background: var(--m-text); }
.modsq.image { background: var(--m-image); }
.modsq.video { background: var(--m-video); }
.modsq.cross { background: var(--m-cross); }

.stamp {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid currentColor;
  padding: 3px 8px;
  white-space: nowrap;
}
.stamp.ready  { color: var(--ink); background: var(--surface); }
.stamp.draft  { color: var(--muted); }
.stamp.future { color: var(--muted); border-style: dashed; }
.stamp.featured { color: var(--accent); border-color: var(--accent); background: color-mix(in oklab, var(--accent) 8%, transparent); font-weight: 600; }

/* ---------------- sampled poster accents ---------------- */
.poster-wash,
.poster-register {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  clip-path: inset(0);
}
.poster-wash > .wrap,
.poster-wash > .wrap-narrow,
.poster-register > .wrap,
.poster-register > .wrap-narrow {
  position: relative;
  z-index: 1;
}
.poster-wash::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: var(--poster-wash-opacity);
  mix-blend-mode: var(--poster-blend);
  background:
    radial-gradient(42% 36% at 10% 18%, var(--poster-lime) 0 18%, transparent 48%),
    radial-gradient(36% 40% at 84% 18%, var(--poster-violet) 0 16%, transparent 52%),
    radial-gradient(44% 40% at 78% 76%, var(--poster-cyan) 0 22%, transparent 58%),
    radial-gradient(34% 36% at 18% 82%, var(--poster-hot-pink) 0 18%, transparent 54%),
    linear-gradient(118deg, var(--poster-coral), transparent 24%, var(--poster-mint) 45%, transparent 66%, var(--poster-sky)),
    linear-gradient(34deg, transparent 15%, var(--poster-sun) 34%, transparent 52%, var(--poster-orchid) 83%);
  background-size: 130% 130%, 125% 125%, 140% 140%, 120% 120%, 180% 180%, 160% 160%;
  background-position: 0% 20%, 100% 0%, 80% 100%, 10% 90%, 0% 50%, 100% 40%;
}
.poster-register::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: var(--poster-stroke-opacity);
  mix-blend-mode: var(--poster-blend);
  background:
    radial-gradient(70px 18px at 12% 24%, transparent 42%, var(--poster-hot-pink) 44% 53%, transparent 55%),
    radial-gradient(100px 26px at 18% 70%, transparent 40%, var(--poster-violet) 42% 50%, transparent 52%),
    radial-gradient(86px 22px at 78% 28%, transparent 40%, var(--poster-lime) 42% 50%, transparent 52%),
    linear-gradient(92deg, transparent 0 14%, var(--poster-coral) 14.5% 16%, transparent 16.5% 100%),
    linear-gradient(176deg, transparent 0 56%, var(--poster-mint) 56.4% 57.7%, transparent 58.2% 100%),
    repeating-linear-gradient(88deg, transparent 0 76px, color-mix(in oklab, var(--poster-sky) 70%, transparent) 77px 80px, transparent 81px 138px);
  background-size: 120% 120%, 130% 130%, 125% 125%, 140% 140%, 135% 135%, 160% 160%;
  background-position: 0% 20%, 8% 80%, 100% 12%, 0% 0%, 50% 50%, 0% 0%;
  filter: blur(0.2px);
}
.poster-static::before,
.poster-static::after {
  animation: none !important;
}
@media (prefers-reduced-motion: no-preference) {
  .poster-drift::before { animation: poster-wash-drift 16s ease-in-out infinite alternate; }
  .poster-drift::after { animation: poster-register-drift 14s ease-in-out infinite alternate; }
  @keyframes poster-wash-drift {
    0% { background-position: 0% 20%, 100% 0%, 80% 100%, 10% 90%, 0% 50%, 100% 40%; }
    50% { background-position: 12% 26%, 88% 8%, 72% 92%, 20% 82%, 22% 48%, 84% 54%; }
    100% { background-position: 4% 16%, 96% 16%, 86% 86%, 8% 96%, 42% 52%, 70% 34%; }
  }
  @keyframes poster-register-drift {
    0% { background-position: 0% 20%, 8% 80%, 100% 12%, 0% 0%, 50% 50%, 0% 0%; }
    50% { background-position: 7% 24%, 14% 74%, 92% 18%, 6% 0%, 46% 54%, 14% 0%; }
    100% { background-position: 3% 18%, 2% 84%, 96% 8%, 0% 6%, 54% 48%, 8% 0%; }
  }
}
@media (prefers-reduced-motion: reduce) {
  .poster-drift::before,
  .poster-drift::after {
    animation: none !important;
  }
}

/* ---------------- riskier poster identity motifs ---------------- */
.risk-glitch {
  --glitch-a: var(--poster-hot-pink);
  --glitch-b: var(--poster-cyan);
  --glitch-c: var(--poster-lime);
  position: relative;
  display: inline-block;
  isolation: isolate;
}
.risk-glitch .risk-glitch-base {
  position: relative;
  z-index: 2;
}
.risk-glitch::before,
.risk-glitch::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  color: var(--glitch-a);
  opacity: 0.56;
  font: inherit;
  letter-spacing: inherit;
  mix-blend-mode: var(--poster-blend);
  clip-path: inset(12% 0 62% 0);
  transform: translate3d(-0.05em, 0.018em, 0);
}
.risk-glitch::after {
  color: var(--glitch-b);
  opacity: 0.48;
  clip-path: inset(58% 0 18% 0);
  transform: translate3d(0.044em, -0.016em, 0);
}
html[data-tone="slate"] .risk-glitch::before,
html[data-tone="slate"] .risk-glitch::after {
  mix-blend-mode: screen;
}

.temperature-ladder {
  border: 1px solid var(--ink);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 14px;
}
.temp-row {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
}
.temp-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}
.temp-output {
  font-family: var(--font-display);
  font-weight: var(--display-weight);
  letter-spacing: var(--display-tracking);
  line-height: 1.08;
  color: var(--ink);
  word-break: break-word;
}
.temp-row.low .temp-output { color: var(--ink); }
.temp-row.mid .temp-output { color: var(--m-text); }
.temp-row.hot {
  margin-inline: -8px;
  padding: 5px 8px;
  background: var(--m-video-tint);
  border-left: 2px solid var(--m-video);
}
.temp-row.hot .temp-label,
.temp-row.hot .temp-output { color: var(--m-video); }
.temp-row.warm .temp-output { color: var(--m-image); }
.temp-row.wild .temp-output { color: var(--m-cross); }
.temp-row.noise .temp-output { color: var(--poster-hot-pink); }
.temp-caption {
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.55;
  color: var(--muted);
}

.self-write-panel {
  border: 1px solid var(--ink);
  background: var(--surface);
  color: var(--ink);
  padding: 14px;
  position: relative;
  overflow: hidden;
}
.self-write-panel::before {
  content: "";
  position: absolute;
  inset: -40%;
  z-index: 0;
  opacity: 0.13;
  pointer-events: none;
  mix-blend-mode: var(--poster-blend);
  background:
    radial-gradient(circle at 18% 28%, var(--poster-lime), transparent 24%),
    radial-gradient(circle at 78% 18%, var(--poster-cyan), transparent 24%),
    radial-gradient(circle at 74% 76%, var(--poster-hot-pink), transparent 28%);
}
.self-write-panel > * {
  position: relative;
  z-index: 1;
}
.sw-head {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 9px;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.sw-status { color: var(--m-text); white-space: nowrap; }
.sw-token-line {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.sw-token {
  --sw-ink: var(--m-text);
  display: inline-flex;
  flex-direction: column;
  gap: 2px;
  border: 1px solid var(--sw-ink);
  background: color-mix(in oklab, var(--sw-ink) 11%, transparent);
  color: var(--sw-ink);
  padding: 5px 7px 4px;
  font-family: var(--font-mono);
  line-height: 1;
}
.sw-token:nth-child(2) { --sw-ink: var(--m-image); }
.sw-token:nth-child(3) { --sw-ink: var(--m-video); }
.sw-token:nth-child(4) { --sw-ink: var(--m-cross); }
.sw-token .sw-t { font-size: 16px; font-weight: 600; white-space: pre; }
.sw-token .sw-p { font-size: 10px; color: var(--muted); }
.sw-line {
  margin-top: 12px;
  max-width: 52ch;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-soft);
}
.sw-caret {
  display: inline-block;
  width: 0.56em;
  height: 1em;
  margin-left: 3px;
  background: var(--m-text);
  vertical-align: -0.12em;
}
@media (prefers-reduced-motion: no-preference) {
  .risk-glitch.is-live::before { animation: risk-glitch-a 5.8s ease-in-out infinite alternate; }
  .risk-glitch.is-live::after { animation: risk-glitch-b 6.4s ease-in-out infinite alternate; }
  .self-write-panel.is-live::before { animation: self-write-wash 12s ease-in-out infinite alternate; }
  .self-write-panel.is-live .sw-token {
    animation: self-write-pulse 5.8s ease-in-out infinite;
    animation-delay: var(--sw-delay, 0s);
  }
  .self-write-panel.is-live .sw-caret { animation: sw-caret-blink 1.1s steps(1) infinite; }
  @keyframes risk-glitch-a {
    0%, 100% { transform: translate3d(-0.04em, 0.014em, 0); clip-path: inset(12% 0 62% 0); }
    45% { transform: translate3d(-0.075em, -0.01em, 0); clip-path: inset(28% 0 50% 0); }
  }
  @keyframes risk-glitch-b {
    0%, 100% { transform: translate3d(0.036em, -0.014em, 0); clip-path: inset(58% 0 18% 0); }
    52% { transform: translate3d(0.066em, 0.02em, 0); clip-path: inset(42% 0 34% 0); }
  }
  @keyframes self-write-wash {
    from { transform: translate3d(-2%, -1%, 0); }
    to { transform: translate3d(2%, 1%, 0); }
  }
  @keyframes self-write-pulse {
    0%, 100% { transform: translateY(0); filter: none; }
    18% { transform: translateY(-2px); filter: saturate(1.35); }
    34% { transform: translateY(0); filter: none; }
  }
  @keyframes sw-caret-blink { 50% { opacity: 0; } }
}
@media (prefers-reduced-motion: reduce) {
  .risk-glitch.is-live::before,
  .risk-glitch.is-live::after,
  .self-write-panel.is-live::before,
  .self-write-panel.is-live .sw-token,
  .self-write-panel.is-live .sw-caret {
    animation: none !important;
  }
}

/* Riskier shared primitives for lower-page campaign energy */
.risk-section,
.risk-card,
.risk-band,
.risk-signal-panel {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  clip-path: inset(0);
}
.risk-section[data-mod="text"],
.risk-card[data-mod="text"],
.risk-band[data-mod="text"],
.risk-signal-panel[data-mod="text"] {
  --mink: var(--m-text);
  --mtint: var(--m-text-tint);
}
.risk-section[data-mod="image"],
.risk-card[data-mod="image"],
.risk-band[data-mod="image"],
.risk-signal-panel[data-mod="image"] {
  --mink: var(--m-image);
  --mtint: var(--m-image-tint);
}
.risk-section[data-mod="video"],
.risk-card[data-mod="video"],
.risk-band[data-mod="video"],
.risk-signal-panel[data-mod="video"] {
  --mink: var(--m-video);
  --mtint: var(--m-video-tint);
}
.risk-section[data-mod="cross"],
.risk-card[data-mod="cross"],
.risk-band[data-mod="cross"],
.risk-signal-panel[data-mod="cross"] {
  --mink: var(--m-cross);
  --mtint: var(--m-cross-tint);
}
.risk-section > *,
.risk-card > *,
.risk-band > *,
.risk-signal-panel > * {
  position: relative;
  z-index: 1;
}
.risk-section::before,
.risk-card::before,
.risk-band::before,
.risk-signal-panel::before {
  content: "";
  position: absolute;
  inset: -18%;
  z-index: 0;
  pointer-events: none;
  opacity: 0.18;
  mix-blend-mode: var(--poster-blend);
  background:
    radial-gradient(34% 34% at 10% 20%, var(--poster-lime) 0 16%, transparent 50%),
    radial-gradient(30% 34% at 84% 20%, var(--poster-violet) 0 15%, transparent 52%),
    radial-gradient(36% 38% at 78% 78%, var(--poster-cyan) 0 19%, transparent 56%),
    linear-gradient(112deg, var(--poster-coral), transparent 28%, var(--poster-mint) 54%, transparent 76%, var(--poster-sky));
  background-size: 140% 140%, 132% 132%, 150% 150%, 190% 190%;
  background-position: 0% 18%, 100% 12%, 82% 88%, 0% 50%;
}
.risk-section::after,
.risk-card::after,
.risk-band::after,
.risk-signal-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.16;
  mix-blend-mode: var(--poster-blend);
  background:
    radial-gradient(92px 18px at 12% 28%, transparent 42%, var(--poster-hot-pink) 44% 52%, transparent 54%),
    radial-gradient(86px 18px at 78% 32%, transparent 42%, var(--poster-lime) 44% 52%, transparent 54%),
    linear-gradient(88deg, transparent 0 18%, color-mix(in oklab, var(--mink, var(--ink)) 56%, transparent) 18.4% 19.2%, transparent 19.6% 100%),
    repeating-linear-gradient(90deg, transparent 0 82px, color-mix(in oklab, var(--poster-sky) 62%, transparent) 83px 86px, transparent 87px 142px);
  background-size: 130% 130%, 124% 124%, 150% 150%, 170% 170%;
  background-position: 0% 20%, 100% 24%, 0% 0%, 0% 0%;
}
.risk-section {
  background:
    linear-gradient(90deg, var(--mtint, transparent), transparent 62%),
    var(--bg);
}
.risk-card,
.risk-band,
.risk-signal-panel {
  border: 1px solid var(--ink);
  background:
    linear-gradient(135deg, var(--mtint, transparent), transparent 58%),
    var(--surface);
}
.risk-card {
  padding: clamp(16px, 2.5vw, 24px);
}
.risk-band {
  padding: clamp(14px, 2vw, 20px);
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  gap: clamp(16px, 3vw, 28px);
  align-items: center;
}
.risk-band .risk-k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mink, var(--muted));
  margin-bottom: 8px;
}
.risk-band h3,
.risk-signal-panel h3 {
  font-size: clamp(22px, 3vw, 34px);
}
.risk-band p,
.risk-signal-panel p {
  margin-top: 8px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.55;
}
.risk-signal-panel {
  padding: clamp(18px, 3vw, 28px);
}
.risk-token-wall {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  align-items: center;
}
.risk-token {
  --token-ink: var(--mink, var(--m-text));
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border: 1px solid var(--token-ink);
  background: color-mix(in oklab, var(--token-ink) 12%, transparent);
  color: var(--token-ink);
  padding: 4px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
}
.risk-token:nth-child(2n) { --token-ink: var(--m-image); }
.risk-token:nth-child(3n) { --token-ink: var(--m-video); }
.risk-token:nth-child(4n) { --token-ink: var(--m-cross); }
.risk-token.hot { --token-ink: var(--poster-hot-pink); }
.risk-token.ghost {
  background: transparent;
  border-style: dashed;
  color: var(--muted);
}
.risk-grid {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 4px;
}
.risk-grid i,
.risk-grid span {
  display: block;
  min-height: 22px;
  aspect-ratio: 1;
  background: var(--mink, var(--m-image));
  border: 1px solid color-mix(in oklab, var(--ink) 12%, transparent);
}
.risk-grid i:nth-child(3n),
.risk-grid span:nth-child(3n) {
  background: var(--poster-cyan);
  opacity: 0.54;
}
.risk-grid i:nth-child(4n),
.risk-grid span:nth-child(4n) {
  background: var(--poster-coral);
  opacity: 0.44;
}
.risk-grid i:nth-child(5n),
.risk-grid span:nth-child(5n) {
  background: transparent;
  border-style: dashed;
}
.risk-frame-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}
.risk-frame,
.risk-frame-strip > span,
.risk-frame-strip > div {
  min-height: 74px;
  border: 1px solid var(--mink, var(--m-video));
  background:
    linear-gradient(135deg, var(--mtint, transparent), transparent 62%),
    var(--surface);
  position: relative;
  overflow: hidden;
}
.risk-frame::before,
.risk-frame-strip > span::before,
.risk-frame-strip > div::before {
  content: "";
  position: absolute;
  inset: 18% 16%;
  border: 1px solid color-mix(in oklab, var(--mink, var(--m-video)) 70%, transparent);
  transform: translateX(var(--drift, 0));
}
.risk-frame-strip > :nth-child(2) { --drift: 8%; opacity: 0.78; }
.risk-frame-strip > :nth-child(3) { --drift: 16%; opacity: 0.62; }
.risk-frame-strip > :nth-child(4) { --drift: 24%; opacity: 0.48; }
.risk-frame-dot {
  position: absolute;
  width: 10px;
  height: 10px;
  background: var(--mink, var(--m-video));
  right: 18%;
  bottom: 24%;
  transform: rotate(18deg);
}
@media (prefers-reduced-motion: no-preference) {
  .risk-drift::before {
    animation: risk-primitive-wash 18s ease-in-out infinite alternate;
  }
  .risk-drift::after {
    animation: risk-primitive-register 15s ease-in-out infinite alternate;
  }
  .risk-token-wall.is-live .risk-token {
    animation: risk-token-step 5.8s ease-in-out infinite;
  }
  .risk-token-wall.is-live .risk-token:nth-child(2n) { animation-delay: 0.12s; }
  .risk-token-wall.is-live .risk-token:nth-child(3n) { animation-delay: 0.24s; }
  .risk-token-wall.is-live .risk-token:nth-child(4n) { animation-delay: 0.36s; }
  .risk-grid.is-live i,
  .risk-grid.is-live span {
    animation: risk-grid-resolve 6.2s ease-in-out infinite;
  }
  .risk-grid.is-live i:nth-child(2n),
  .risk-grid.is-live span:nth-child(2n) {
    animation-delay: 0.5s;
  }
  .risk-grid.is-live i:nth-child(3n),
  .risk-grid.is-live span:nth-child(3n) {
    animation-delay: 1s;
  }
  .risk-frame-strip.is-live > * {
    animation: risk-frame-drift 6.8s ease-in-out infinite alternate;
  }
  .risk-frame-strip.is-live > :nth-child(2) { animation-delay: -1s; }
  .risk-frame-strip.is-live > :nth-child(3) { animation-delay: -2s; }
  .risk-frame-strip.is-live > :nth-child(4) { animation-delay: -3s; }
  @keyframes risk-primitive-wash {
    0% { background-position: 0% 18%, 100% 12%, 82% 88%, 0% 50%; }
    100% { background-position: 10% 24%, 90% 18%, 72% 94%, 38% 52%; }
  }
  @keyframes risk-primitive-register {
    0% { background-position: 0% 20%, 100% 24%, 0% 0%, 0% 0%; }
    100% { background-position: 8% 24%, 92% 18%, 8% 2%, 14% 0%; }
  }
  @keyframes risk-token-step {
    0%, 100% { transform: translateY(0); filter: none; }
    24% { transform: translateY(-2px); filter: saturate(1.3); }
    42% { transform: translateY(0); filter: none; }
  }
  @keyframes risk-grid-resolve {
    0%, 100% { filter: none; transform: scale(1); }
    48% { filter: saturate(1.35) contrast(1.08); transform: scale(0.94); }
  }
  @keyframes risk-frame-drift {
    from { transform: translateX(0); }
    to { transform: translateX(4px); }
  }
}
@media (prefers-reduced-motion: reduce) {
  .risk-drift::before,
  .risk-drift::after,
  .risk-token-wall.is-live .risk-token,
  .risk-grid.is-live i,
  .risk-grid.is-live span,
  .risk-frame-strip.is-live > * {
    animation: none !important;
  }
}
@media (max-width: 760px) {
  .risk-band {
    grid-template-columns: 1fr;
  }
  .risk-frame-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------------- session skin behavior ---------------- */
html[data-skin] .sub-hero.poster-wash {
  color: var(--skin-ink);
  background:
    linear-gradient(112deg, color-mix(in oklab, var(--skin-accent) 22%, transparent), transparent 42%, color-mix(in oklab, var(--skin-accent-2) 18%, transparent)),
    var(--skin-bg);
}
html[data-skin] .sub-hero:not(.poster-wash) {
  border-bottom-color: color-mix(in oklab, var(--skin-accent) 58%, var(--ink));
  background:
    linear-gradient(112deg, color-mix(in oklab, var(--skin-accent) 14%, transparent), transparent 42%, color-mix(in oklab, var(--skin-accent-2) 10%, transparent)),
    var(--bg);
}
html[data-skin] .sub-hero:not(.poster-wash)::before {
  opacity: 0.16;
  background:
    radial-gradient(34% 36% at 12% 22%, var(--skin-accent) 0 14%, transparent 52%),
    radial-gradient(30% 38% at 86% 22%, var(--skin-accent-2) 0 12%, transparent 52%),
    linear-gradient(118deg, var(--poster-coral), transparent 28%, var(--poster-cyan) 56%, transparent 74%, var(--poster-violet));
}
html[data-skin] .sub-hero:not(.poster-wash)::after {
  opacity: 0.12;
  background:
    radial-gradient(96px 18px at 18% 70%, transparent 42%, var(--skin-accent-2) 44% 52%, transparent 54%),
    radial-gradient(86px 18px at 78% 30%, transparent 42%, var(--skin-accent) 44% 52%, transparent 54%),
    repeating-linear-gradient(90deg, transparent 0 92px, color-mix(in oklab, var(--skin-accent) 50%, transparent) 93px 96px, transparent 97px 156px);
}
html[data-skin] .sub-hero.poster-wash .crumb,
html[data-skin] .sub-hero.poster-wash .crumb a,
html[data-skin] .sub-hero:not(.poster-wash) .crumb,
html[data-skin] .sub-hero:not(.poster-wash) .crumb a,
html[data-skin] .sub-hero.poster-wash .sess-kicker,
html[data-skin] .sub-hero.poster-wash .sess-num .of {
  color: color-mix(in oklab, var(--skin-soft) 74%, transparent);
}
html[data-skin] .sub-hero.poster-wash .sess-title,
html[data-skin] .sub-hero.poster-wash .sess-num,
html[data-skin] .sub-hero.poster-wash .sess-q,
html[data-skin] .sub-hero.poster-wash .q-accent,
html[data-skin] .sub-hero.poster-wash .accent {
  color: var(--skin-ink);
}
html[data-skin] .sub-hero.poster-wash .sess-lede {
  color: var(--skin-soft);
}
html[data-skin] .sub-hero.poster-wash .modsq {
  background: var(--skin-accent);
}
html[data-skin] .sub-hero:not(.poster-wash) .modsq,
html[data-skin] .sub-hero:not(.poster-wash) .accent,
html[data-skin] .sub-hero:not(.poster-wash) .chip {
  border-color: color-mix(in oklab, var(--skin-accent) 42%, var(--rule));
  color: var(--skin-accent);
}
html[data-skin] .sub-hero:not(.poster-wash) .modsq {
  background: var(--skin-accent);
}
html[data-skin] .sub-hero.poster-wash::before {
  opacity: 0.34;
  background:
    radial-gradient(34% 36% at 12% 22%, var(--skin-accent) 0 18%, transparent 52%),
    radial-gradient(30% 38% at 86% 22%, var(--skin-accent-2) 0 15%, transparent 52%),
    linear-gradient(118deg, var(--poster-coral), transparent 28%, var(--poster-cyan) 56%, transparent 74%, var(--poster-violet));
}
html[data-skin] .sub-hero.poster-register::after {
  opacity: 0.28;
  background:
    radial-gradient(96px 18px at 18% 70%, transparent 42%, var(--skin-accent-2) 44% 52%, transparent 54%),
    radial-gradient(86px 18px at 78% 30%, transparent 42%, var(--skin-accent) 44% 52%, transparent 54%),
    repeating-linear-gradient(90deg, transparent 0 92px, color-mix(in oklab, var(--skin-accent) 62%, transparent) 93px 96px, transparent 97px 156px);
}
html[data-skin="text-terminal"] .sub-hero.poster-wash,
html[data-skin="counting-signal"] .sub-hero.poster-wash,
html[data-skin="latent-nebula"] .sub-hero.poster-wash,
html[data-skin="video-slitscan"] .sub-hero.poster-wash,
html[data-skin="studio-synthesis"] .sub-hero.poster-wash {
  border-bottom-color: var(--skin-accent);
}
html[data-skin="text-terminal"] .sub-hero.poster-wash::after,
html[data-skin="counting-signal"] .sub-hero.poster-wash::after,
html[data-skin="text-terminal"] .risk-section::after,
html[data-skin="text-terminal"] .risk-card::after,
html[data-skin="text-terminal"] .risk-band::after {
  background:
    repeating-linear-gradient(0deg, rgba(105, 255, 153, 0.08) 0 1px, transparent 1px 6px),
    repeating-linear-gradient(90deg, transparent 0 88px, rgba(105, 255, 153, 0.16) 89px 91px, transparent 92px 156px);
}
html[data-skin="text-terminal"] .risk-card,
html[data-skin="counting-signal"] .risk-card,
html[data-skin="latent-nebula"] .risk-card,
html[data-skin="text-terminal"] .risk-band,
html[data-skin="counting-signal"] .risk-band,
html[data-skin="latent-nebula"] .risk-band,
html[data-skin="text-terminal"] .temperature-ladder,
html[data-skin="text-terminal"] .self-write-panel {
  background: var(--skin-panel);
  color: var(--skin-ink);
  border-color: var(--skin-accent);
  box-shadow: var(--skin-glow);
}
html[data-skin="text-terminal"] .risk-token,
html[data-skin="text-terminal"] .temp-output,
html[data-skin="text-terminal"] .ts-n {
  text-shadow: var(--skin-glow);
}
html[data-skin="image-spectrum"] .risk-section::before,
html[data-skin="latent-nebula"] .risk-section::before,
html[data-skin="image-spectrum"] .risk-card::before,
html[data-skin="latent-nebula"] .risk-card::before,
html[data-skin="image-spectrum"] .risk-band::before {
  opacity: 0.30;
  background:
    linear-gradient(112deg, #69d08f, #b9d7ff 28%, #ffb1d6 58%, #d7c4ff 82%, #f2d68f),
    radial-gradient(circle at 44% 42%, var(--poster-cyan), transparent 28%);
}
html[data-skin="image-spectrum"] .risk-grid i,
html[data-skin="image-spectrum"] .risk-grid span {
  border-radius: 5px;
  border-color: transparent;
  box-shadow: var(--skin-glow);
}
html[data-skin="video-slitscan"] .sess-title,
html[data-skin="video-slitscan"] .plate-claim {
  text-shadow:
    -0.045em 0 var(--skin-accent),
    0.045em 0 var(--skin-accent-2);
}
html[data-skin="video-slitscan"] .risk-frame-strip > *,
html[data-skin="video-slitscan"] .risk-card {
  background: var(--skin-panel);
  border-color: color-mix(in oklab, var(--skin-accent) 70%, var(--rule));
  box-shadow: var(--skin-glow);
}
html[data-skin="video-slitscan"] .risk-frame-strip > *::after {
  content: "t" counter(frame);
  counter-increment: frame;
  position: absolute;
  left: 10px;
  bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--skin-muted);
}
html[data-skin="video-slitscan"] .risk-frame-strip {
  counter-reset: frame -1;
}
html[data-skin="studio-synthesis"] .risk-signal-panel,
html[data-skin="studio-synthesis"] .risk-card,
html[data-skin="studio-synthesis"] .risk-band {
  background:
    linear-gradient(135deg, rgba(243, 98, 152, 0.14), transparent 42%, rgba(171, 242, 121, 0.12)),
    var(--surface);
}
html[data-skin="studio-synthesis"] .risk-signal-panel {
  box-shadow: var(--skin-glow);
}
html[data-skin="counting-signal"] .risk-signal-panel,
html[data-skin="latent-nebula"] .risk-signal-panel {
  background:
    linear-gradient(135deg, color-mix(in oklab, var(--skin-accent) 16%, transparent), transparent 42%, color-mix(in oklab, var(--skin-accent-2) 13%, transparent)),
    var(--skin-panel);
  color: var(--skin-ink);
  border-color: var(--skin-accent);
  box-shadow: var(--skin-glow);
}
html[data-skin] .risk-section::before,
html[data-skin] .risk-card::before,
html[data-skin] .risk-band::before,
html[data-skin] .risk-signal-panel::before {
  opacity: 0.13;
  background:
    radial-gradient(34% 34% at 10% 20%, var(--skin-accent) 0 15%, transparent 50%),
    radial-gradient(30% 34% at 84% 20%, var(--skin-accent-2) 0 15%, transparent 52%),
    radial-gradient(36% 38% at 78% 78%, var(--poster-cyan) 0 18%, transparent 56%),
    linear-gradient(112deg, var(--poster-coral), transparent 28%, var(--poster-mint) 54%, transparent 76%, var(--poster-sky));
}
html[data-skin] .risk-section::after,
html[data-skin] .risk-card::after,
html[data-skin] .risk-band::after,
html[data-skin] .risk-signal-panel::after {
  opacity: 0.09;
}
html[data-skin="image-spectrum"] .risk-section::before,
html[data-skin="image-spectrum"] .risk-card::before,
html[data-skin="image-spectrum"] .risk-band::before {
  opacity: 0.22;
  background:
    linear-gradient(112deg, #69d08f, #b9d7ff 28%, #ffb1d6 58%, #d7c4ff 82%, #f2d68f),
    radial-gradient(circle at 44% 42%, var(--poster-cyan), transparent 28%);
}
html[data-skin] .session-risk-motif.risk-card,
html[data-skin] .session-risk-motif.risk-signal-panel {
  max-width: min(760px, 100%);
}
html[data-skin="image-spectrum"] .session-risk-motif.risk-card {
  max-width: min(680px, 100%);
}
html[data-skin="image-spectrum"] .session-risk-motif .risk-grid {
  max-width: 330px;
}
html[data-skin="text-terminal"] .session-temp-note {
  max-width: min(760px, 100%);
}
html[data-skin="text-terminal"] .temperature-ladder {
  background:
    linear-gradient(90deg, rgba(45, 255, 120, 0.08), transparent 70%),
    var(--skin-panel);
  border-color: var(--skin-accent);
}
html[data-skin="text-terminal"] .temperature-ladder .temp-label {
  color: color-mix(in oklab, var(--skin-soft) 68%, transparent);
}
html[data-skin="text-terminal"] .temp-row.low .temp-output {
  color: var(--skin-soft);
}
html[data-skin="text-terminal"] .temp-row.mid .temp-output,
html[data-skin="text-terminal"] .temp-row.hot .temp-output {
  color: var(--skin-ink);
}
html[data-skin="text-terminal"] .temp-row.hot {
  background: rgba(45, 255, 120, 0.10);
  border-left-color: var(--skin-accent);
}
html[data-skin="text-terminal"] .temp-row.hot .temp-label {
  color: var(--skin-ink);
}
html[data-skin="text-terminal"] .temp-row.warm .temp-output {
  color: #ff8a3d;
}
html[data-skin="text-terminal"] .temp-row.wild .temp-output {
  color: #d98cff;
}
html[data-skin="text-terminal"] .temp-caption {
  font-size: 12.5px;
  color: color-mix(in oklab, var(--ink-soft) 84%, var(--skin-accent));
  max-width: 62ch;
}
html[data-skin="text-terminal"] .risk-card .plate-cap,
html[data-skin="text-terminal"] .risk-card .plate-cap .fig {
  color: color-mix(in oklab, var(--skin-soft) 78%, transparent);
}
html[data-skin="text-terminal"] .risk-card .plate-cap .fig {
  color: var(--skin-ink);
}
html[data-skin="text-terminal"] .risk-token.ghost {
  color: color-mix(in oklab, var(--skin-soft) 58%, transparent);
}

/* ---------------- figure plates ---------------- */
.plate {
  border: 1px solid var(--ink);
  background: var(--surface);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.plate-cap {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 12px;
}
.plate-cap .fig { color: var(--ink); }

/* ---------------- index rows (tool catalog / session tool lists) ---------------- */
.ix-row {
  display: grid;
  grid-template-columns: 48px minmax(0, 1.5fr) minmax(0, 2fr) 150px 120px;
  align-items: baseline;
  gap: 18px;
  padding: 16px 2px;
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
  position: relative;
}
.ix-row[data-mod="text"]  { --mink: var(--m-text);  --mtint: var(--m-text-tint); }
.ix-row[data-mod="image"] { --mink: var(--m-image); --mtint: var(--m-image-tint); }
.ix-row[data-mod="video"] { --mink: var(--m-video); --mtint: var(--m-video-tint); }
.ix-row[data-mod="cross"] { --mink: var(--m-cross); --mtint: var(--m-cross-tint); }
.ix-row:hover { background: var(--mtint, var(--surface)); }
html[data-skin] .ix-row {
  overflow: hidden;
  isolation: isolate;
}
html[data-skin] .ix-row::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 0;
  background:
    linear-gradient(90deg, color-mix(in oklab, var(--mink, var(--skin-accent)) 18%, transparent), transparent);
  pointer-events: none;
  transition: width 160ms ease;
}
html[data-skin] .ix-row:hover::before {
  width: min(360px, 42%);
}
html[data-skin] .ix-row > * {
  position: relative;
  z-index: 1;
}
html[data-skin] .ix-row:hover {
  background:
    linear-gradient(90deg, color-mix(in oklab, var(--mink, var(--skin-accent)) 9%, transparent), transparent 58%),
    var(--surface);
}
html[data-skin] .ix-no {
  color: color-mix(in oklab, var(--mink, var(--skin-accent)) 64%, var(--muted));
}
html[data-skin] .ix-name {
  text-decoration-color: color-mix(in oklab, var(--mink, var(--skin-accent)) 58%, transparent);
}
.ix-no {
  font-size: 11.5px;
  color: var(--muted);
}
.ix-name {
  font-weight: 600;
  font-size: 15.5px;
  letter-spacing: -0.01em;
}
.ix-row:hover .ix-name { text-decoration: underline; text-underline-offset: 3px; }
.ix-blurb {
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.5;
}
.ix-mod {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--mink);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.ix-mod .modsq { background: var(--mink); }
.ix-stamp-cell { text-align: right; }
.ix-empty {
  padding: 32px 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
  border-bottom: 1px solid var(--rule);
}

/* ---------------- doc lists ---------------- */
.doc-list { border-top: 1px solid var(--rule); }
.doc-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 13px 2px;
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
}
.doc-row:hover { background: var(--surface); }
.doc-row .d-name { font-weight: 600; font-size: 14.5px; }
.doc-row .d-desc {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  text-align: right;
}
.doc-row:hover .d-name { text-decoration: underline; text-underline-offset: 3px; }
html[data-skin] .doc-list {
  border-top-color: color-mix(in oklab, var(--skin-accent) 50%, var(--rule));
}
html[data-skin] .doc-row {
  position: relative;
  overflow: hidden;
}
html[data-skin] .doc-row::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: color-mix(in oklab, var(--skin-accent) 54%, transparent);
  opacity: 0;
}
html[data-skin] .doc-row:hover {
  background:
    linear-gradient(90deg, color-mix(in oklab, var(--skin-accent) 9%, transparent), transparent 52%),
    var(--surface);
}
html[data-skin] .doc-row:hover::before {
  opacity: 1;
}
html[data-skin] .doc-row > * {
  position: relative;
  z-index: 1;
}
html[data-skin] .doc-row .d-desc {
  color: color-mix(in oklab, var(--skin-muted) 68%, var(--muted));
}

/* ---------------- footer ---------------- */
.footer {
  border-top: 1px solid var(--ink);
  padding-block: 36px 48px;
}
.footer .colophon {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------------- responsive helpers ---------------- */
@media (max-width: 900px) {
  .hide-sm { display: none; }
  .doc-row { flex-direction: column; gap: 3px; }
  .doc-row .d-desc { text-align: left; }
}

/* ---------------- small screens (≤560px) ---------------- */
@media (max-width: 560px) {
  .sec-rule { flex-wrap: wrap; gap: 4px 24px; }
  .sec-rule .sec-no { white-space: normal; flex: 0 1 auto; }
  .sec-rule .sec-note { text-align: left; }
  .nav-inner { gap: 12px; }
  .nav-links { gap: 12px; }
  .brand { font-size: 14px; }
  .nav-links .btn { padding: 7px 10px; font-size: 11px; letter-spacing: 0.02em; }
}

/* footer escape-hatch links (site-audit fix) */
.footer-links{margin-bottom:10px;font-family:var(--font-mono);font-size:12px;letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}
.footer-links a{color:inherit;text-decoration:none}
.footer-links a:hover{text-decoration:underline;text-underline-offset:3px}