/* Dexterous Tactile World Model: project page.
   Hero is always dark; the body follows the viewer's theme. Accents come from the glove pressure maps
   (warm heat scale), the "to predict" magenta of the task figure, and the DTWM blue of the paper figures. */

:root {
  --bg: #f7f8fb;
  --surface: #ffffff;
  --plate: #ffffff;
  --ink: #121620;
  --ink-soft: #3a4252;
  --muted: #5f6878;
  --rule: #e3e7ee;
  --touch: #0a68a6;
  --future: #b3336a;
  --chip: #eef1f6;
  --shadow: 0 1px 2px rgba(18, 22, 32, 0.05), 0 12px 32px rgba(18, 22, 32, 0.08);
  --nav-bg: rgba(247, 248, 251, 0.78);

  --h-bg: #f3f5f9;
  --h-glow: #ffffff;
  --h-ink: #121620;
  --h-sub: #3a4252;
  --h-muted: #5f6878;
  --h-obs: #2a303b;
  --h-pred: #c2386f;
  --h-head: #e2505f;
  --h-btn-bg: #121620;
  --h-btn-ink: #ffffff;
  --h-line: rgba(18, 22, 32, 0.22);
  --h-chip-bg: rgba(18, 22, 32, 0.04);
  --h-chip-bd: rgba(18, 22, 32, 0.14);
  --h-chip-ink: #3a4252;
  --h-cell: rgba(18, 22, 32, 0.045);

  --heat: linear-gradient(90deg, #ffe39f 0%, #f7a24f 28%, #e2505f 55%, #b3336a 78%, #5b2270 100%);

  --font-display: "Hanken Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Source Serif 4", Georgia, "Times New Roman", serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --wide: 1120px;
  --prose: 680px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d1016;
    --surface: #141922;
    --plate: #f3f5f8;
    --ink: #e9ecf1;
    --ink-soft: #c8ced8;
    --muted: #98a1b0;
    --rule: #252c37;
    --touch: #5aaee8;
    --future: #e6719f;
    --chip: #1c222c;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.35), 0 12px 32px rgba(0, 0, 0, 0.35);
    --nav-bg: rgba(13, 16, 22, 0.78);
    --h-bg: #0b0e14;
    --h-glow: #1a1f2b;
    --h-ink: #f3f5f9;
    --h-sub: #d5dae3;
    --h-muted: #a3acbb;
    --h-obs: #e6eaf1;
    --h-pred: #e2508a;
    --h-head: #ffe39f;
    --h-btn-bg: #f3f5f9;
    --h-btn-ink: #0b0e14;
    --h-line: rgba(255, 255, 255, 0.22);
    --h-chip-bg: rgba(255, 255, 255, 0.05);
    --h-chip-bd: rgba(255, 255, 255, 0.16);
    --h-chip-ink: #d5dae3;
    --h-cell: rgba(255, 255, 255, 0.035);
  }
}
:root[data-theme="dark"] {
  --bg: #0d1016;
  --surface: #141922;
  --plate: #f3f5f8;
  --ink: #e9ecf1;
  --ink-soft: #c8ced8;
  --muted: #98a1b0;
  --rule: #252c37;
  --touch: #5aaee8;
  --future: #e6719f;
  --chip: #1c222c;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.35), 0 12px 32px rgba(0, 0, 0, 0.35);
  --nav-bg: rgba(13, 16, 22, 0.78);
  --h-bg: #0b0e14;
  --h-glow: #1a1f2b;
  --h-ink: #f3f5f9;
  --h-sub: #d5dae3;
  --h-muted: #a3acbb;
  --h-obs: #e6eaf1;
  --h-pred: #e2508a;
  --h-head: #ffe39f;
  --h-btn-bg: #f3f5f9;
  --h-btn-ink: #0b0e14;
  --h-line: rgba(255, 255, 255, 0.22);
  --h-chip-bg: rgba(255, 255, 255, 0.05);
  --h-chip-bd: rgba(255, 255, 255, 0.16);
  --h-chip-ink: #d5dae3;
  --h-cell: rgba(255, 255, 255, 0.035);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 64px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--touch); text-underline-offset: 0.18em; }
:focus-visible { outline: 2px solid #f7a24f; outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { font-family: var(--font-display); margin: 0; line-height: 1.12; text-wrap: balance; }
p { margin: 0; }

.wrap { max-width: var(--wide); margin-inline: auto; padding-inline: 16px; }
@media (min-width: 700px) { .wrap { padding-inline: 32px; } }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ------------------------------------------------------------------ nav */
.nav {
  position: sticky; top: 0; z-index: 20;
  background: var(--nav-bg);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--rule);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 56px; }
.nav .mark { font-family: var(--font-display); font-weight: 700; letter-spacing: 0.04em; color: var(--ink); text-decoration: none; }
.nav .mark span { background: var(--heat); -webkit-background-clip: text; background-clip: text; color: transparent; }
.nav nav { display: flex; gap: 20px; }
.nav nav a { font-family: var(--font-display); font-size: 0.9rem; color: var(--muted); text-decoration: none; }
.nav nav a:hover { color: var(--ink); }
.theme-toggle {
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--muted);
  background: none; border: 1px solid var(--rule); border-radius: 999px; padding: 4px 10px; cursor: pointer;
}

/* ------------------------------------------------------------------ hero (always dark) */
.hero {
  position: relative;
  overflow: hidden;
  background: radial-gradient(1200px 520px at 78% 20%, var(--h-glow) 0%, var(--h-bg) 62%);
  color: var(--h-ink);
  isolation: isolate;
}
#taxels {
  position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, rgba(0,0,0,0.25) 38%, #000 70%);
          mask-image: linear-gradient(90deg, transparent 0%, rgba(0,0,0,0.25) 38%, #000 70%);
  opacity: 0.55;
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: 56px;
  align-items: center;
  padding-block: 72px 36px;
}
.hero .eyebrow { color: #f7a24f; }
.hero h1 {
  margin-top: 14px;
  font-size: clamp(2.5rem, 5.4vw, 4.4rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--h-ink);
}
.hero h1 .heat { background: var(--heat); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .subtitle { margin-top: 18px; font-size: 1.28rem; line-height: 1.45; color: var(--h-sub); max-width: 30em; }
.authors { margin-top: 26px; font-family: var(--font-display); color: var(--h-ink); line-height: 1.55; max-width: 34em; }
.authors sup { font-size: 0.68em; color: #f7a24f; }
.authors small { display: block; margin-top: 8px; font-size: 0.85rem; color: var(--h-muted); }

.links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-display); font-weight: 600; font-size: 0.92rem;
  padding: 10px 18px; border-radius: 999px; text-decoration: none;
  color: var(--h-btn-ink); background: var(--h-btn-bg); border: 1px solid var(--h-btn-bg);
  transition: transform 0.15s ease, background 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn.line { background: transparent; color: var(--h-ink); border-color: var(--h-line); }
.btn .tag { font-family: var(--font-mono); font-size: 0.7rem; font-weight: 400; opacity: 0.7; }
.btn svg { width: 16px; height: 16px; }

.task { position: relative; }
.task-frame {
  padding: 2px; border-radius: 18px;
  background: linear-gradient(140deg, rgba(247, 162, 79, 0.9), rgba(179, 51, 106, 0.9) 45%, rgba(79, 168, 234, 0.85));
  box-shadow: 0 30px 80px rgba(179, 51, 106, 0.22), 0 12px 30px rgba(0, 0, 0, 0.45);
}
.task-frame img { border-radius: 16px; background: #fff; width: 100%; }
.task .chips { justify-content: center; }
.task p { margin-top: 12px; text-align: center; font-size: 0.9rem; color: var(--h-muted); }

.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.chip {
  font-family: var(--font-display); font-size: 0.82rem;
  padding: 5px 12px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--h-chip-bd); background: var(--h-chip-bg); color: var(--h-chip-ink);
}
.chip[aria-pressed="true"] { background: var(--h-btn-bg); color: var(--h-btn-ink); border-color: var(--h-btn-bg); }

/* timeline strip */
.timeline { padding-block: 10px 56px; }
.timeline .scroller { overflow-x: auto; }
.timeline svg { display: block; width: 100%; min-width: 620px; height: auto; }
.tl-obs { fill: var(--h-obs); }
.tl-pred { fill: var(--h-pred); }
.tl-seg { font-family: var(--font-display); font-size: 13px; font-weight: 600; }
.tl-seg.o { fill: var(--h-obs); }
.tl-seg.p { fill: var(--h-pred); }
.tl-tick, .tl-chunk { font-family: var(--font-mono); font-size: 11px; fill: var(--h-muted); }
.tl-bracket { stroke: var(--h-muted); stroke-width: 1; fill: none; opacity: 0.7; }
.tl-head { fill: var(--h-head); }
@media (prefers-reduced-motion: no-preference) {
  .tl-head { animation: sweep 4.8s linear infinite; }
  @keyframes sweep { from { transform: translateX(0); } to { transform: translateX(960px); } }
}

/* ------------------------------------------------------------------ body sections */
.section { padding-block: 88px; }
.section + .section { border-top: 1px solid var(--rule); }
.section-head { max-width: 820px; }
.section-head .eyebrow { color: var(--future); }
.section-head h2 { margin-top: 10px; font-size: clamp(1.9rem, 3.6vw, 2.8rem); font-weight: 700; letter-spacing: -0.02em; }
.section-head p { margin-top: 16px; font-size: 1.15rem; line-height: 1.55; color: var(--ink-soft); max-width: var(--prose); }
.heat-rule { height: 3px; width: 72px; border-radius: 3px; background: var(--heat); margin-top: 22px; }

/* statement cards (slide 41) */
.statements { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 44px; }
.statement {
  position: relative; padding: 26px 24px 24px; border-radius: 18px;
  background: var(--surface); border: 1px solid var(--rule); box-shadow: var(--shadow);
  overflow: hidden;
}
.statement::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--heat); }
.statement h3 { font-size: 1.28rem; font-weight: 700; }
.statement p { margin-top: 10px; color: var(--ink-soft); font-size: 1rem; }
.question {
  margin-top: 56px; text-align: center;
  font-family: var(--font-display); font-weight: 700; letter-spacing: -0.02em;
  font-size: clamp(1.6rem, 3.4vw, 2.5rem); line-height: 1.2; text-wrap: balance;
}
.question span { background: linear-gradient(90deg, #f7a24f, #b3336a 50%, var(--touch)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* media */
.media { margin-top: 36px; }
.card {
  border-radius: 18px; background: var(--plate); box-shadow: var(--shadow);
  border: 1px solid var(--rule); overflow: hidden;
}
.card.pad { padding: 18px; }
.cap { margin-top: 12px; font-size: 0.92rem; color: var(--muted); max-width: var(--prose); }

.duo { display: grid; grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr); gap: 28px; align-items: start; margin-top: 40px; }
.duo h3 { font-size: 1.3rem; font-weight: 700; }
.duo .txt p { margin-top: 10px; color: var(--ink-soft); }
.duo .txt .card { margin-top: 18px; }

.switch { display: inline-flex; gap: 4px; padding: 4px; margin-top: 30px; border-radius: 999px; background: var(--chip); border: 1px solid var(--rule); }
.switch button {
  font-family: var(--font-display); font-weight: 600; font-size: 0.86rem;
  border: 0; background: none; color: var(--muted); padding: 7px 14px; border-radius: 999px; cursor: pointer;
}
.switch button[aria-selected="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12); }
.switch + .media { margin-top: 16px; }

/* bibtex */
.bib { position: relative; margin-top: 28px; }
.bib pre {
  margin: 0; font-family: var(--font-mono); font-size: 0.86rem; line-height: 1.6;
  background: var(--surface); border: 1px solid var(--rule); border-radius: 14px; padding: 20px; overflow-x: auto;
}
.copy {
  position: absolute; top: 12px; right: 12px; font-family: var(--font-mono); font-size: 0.74rem;
  border: 1px solid var(--rule); background: var(--chip); color: var(--ink-soft); border-radius: 8px; padding: 4px 9px; cursor: pointer;
}

.footer { padding-block: 32px 56px; border-top: 1px solid var(--rule); color: var(--muted); font-size: 0.9rem; }

/* ------------------------------------------------------------------ responsive */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; padding-top: 48px; }
  .task { max-width: 440px; margin-inline: auto; width: 100%; }
  .statements { grid-template-columns: 1fr; }
  .duo { grid-template-columns: 1fr; }
  .section { padding-block: 64px; }
  #taxels { -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,0.5), transparent 70%); mask-image: linear-gradient(180deg, rgba(0,0,0,0.5), transparent 70%); }
}
@media (max-width: 560px) {
  .nav nav { display: none; }
  .hero .subtitle { font-size: 1.12rem; }
}

/* ======================================================================== v2: web-native figures */
:root {
  --c-vision: #7c8596; --c-trainonly: #86b9e0; --c-dtwm: #0a68a6;
  --c-tw: #d4891c; --c-fw: #1f8a63; --c-vt: #7b5ea7;
  --c-hold: #1f7a56; --c-release: #c0407a; --c-rise: #c98a2b;
  --grid: rgba(18, 22, 32, 0.08); --axis: rgba(18, 22, 32, 0.35);
  --tac-cell: #e3e7ee; --tac-track: #e9edf3; --tac-bend: #2f7fc1;
  --tile-bg: #e9edf3;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --c-vision: #9aa3b1; --c-trainonly: #3d7fb0; --c-dtwm: #5aaee8;
    --c-tw: #eeb04f; --c-fw: #4fbf8e; --c-vt: #b09ae0;
    --c-hold: #4fbf8e; --c-release: #ea7aa7; --c-rise: #e6b25a;
    --grid: rgba(255, 255, 255, 0.08); --axis: rgba(255, 255, 255, 0.32);
    --tac-cell: #262d38; --tac-track: #1f2630; --tac-bend: #62b0e8;
    --tile-bg: #1a2029;
  }
}
:root[data-theme="dark"] {
  --c-vision: #9aa3b1; --c-trainonly: #3d7fb0; --c-dtwm: #5aaee8;
  --c-tw: #eeb04f; --c-fw: #4fbf8e; --c-vt: #b09ae0;
  --c-hold: #4fbf8e; --c-release: #ea7aa7; --c-rise: #e6b25a;
  --grid: rgba(255, 255, 255, 0.08); --axis: rgba(255, 255, 255, 0.32);
  --tac-cell: #262d38; --tac-track: #1f2630; --tac-bend: #62b0e8;
  --tile-bg: #1a2029;
}

/* colour helpers used by SVG and HTML */
.c-vision { --c: var(--c-vision); } .c-trainonly { --c: var(--c-trainonly); } .c-dtwm { --c: var(--c-dtwm); }
.c-tw { --c: var(--c-tw); } .c-fw { --c: var(--c-fw); } .c-vt { --c: var(--c-vt); }
.c-hold { --c: var(--c-hold); } .c-release { --c: var(--c-release); } .c-rise { --c: var(--c-rise); }
.c-hold-text { color: var(--c-hold); } .c-release-text { color: var(--c-release); } .c-future-text { color: var(--future); }
.c-hold-border { --b: var(--c-hold); } .c-release-border { --b: var(--c-release); }
.c-hold-bg { background: var(--c-hold); } .c-release-bg { background: var(--c-release); }

/* ------------------------------------------------ charts (SVG) */
.chart { width: 100%; }
.chart-svg { display: block; overflow: visible; font-family: var(--font-display); }
.chart-svg .grid { stroke: var(--grid); stroke-width: 1; }
.chart-svg .axis { stroke: var(--axis); stroke-width: 1; }
.chart-svg .ref { stroke: var(--axis); stroke-width: 1.2; stroke-dasharray: 4 4; }
.chart-svg .tick { fill: var(--muted); font-size: 12px; font-family: var(--font-mono); }
.chart-svg .tick.small { font-size: 11px; }
.chart-svg .axis-title { fill: var(--muted); font-size: 12px; }
.chart-svg .axis-title.small { font-size: 11px; }
.chart-svg .fill { fill: var(--c); }
.chart-svg .value { font-size: 15px; font-weight: 700; fill: var(--c); paint-order: stroke; stroke: var(--halo, var(--bg)); stroke-width: 4px; stroke-linejoin: round; }
.chart-svg .value.small { font-size: 12px; }
.chart-svg .c-vision-text { fill: var(--c-vision); } .chart-svg .c-trainonly-text { fill: var(--c-trainonly); } .chart-svg .c-dtwm-text { fill: var(--c-dtwm); }
.chart-svg .c-hold-text { fill: var(--c-hold); } .chart-svg .c-release-text { fill: var(--c-release); } .chart-svg .c-rise-text { fill: var(--c-rise); }
.chart-svg .inbar { fill: #fff; font-size: 13px; font-weight: 700; }
.chart-svg .xlabel { font-size: 13px; font-weight: 700; }
.chart-svg .glyph { fill: none; stroke: var(--c); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.chart-svg .glyph-area { fill: var(--c); opacity: 0.14; }
.chart-svg .panel-title { fill: var(--ink); font-size: 13.5px; font-weight: 700; }
.chart-svg .panel-note { fill: var(--muted); font-size: 11.5px; }
.chart-svg .rgrid { fill: none; stroke: var(--grid); stroke-width: 1.2; }
.chart-svg .rlabel { fill: var(--ink-soft); font-size: 12px; }
.chart-svg .rsub { font-size: 9.5px; }
.chart-svg .rpoly { fill: var(--c); fill-opacity: 0.08; stroke: var(--c); stroke-width: 1.6; }
.chart-svg .rpoly.main { fill-opacity: 0.16; stroke-width: 2.6; }
.chart-svg .rdot { fill: var(--c); }
.chart-svg .line { fill: none; stroke: var(--c); stroke-width: 2.2; stroke-linejoin: round; }
.chart-svg .line.dashed { stroke-dasharray: 5 4; }
.chart-svg .area { fill: var(--c); opacity: 0.12; }

.legend { display: flex; flex-wrap: wrap; gap: 6px 18px; font-family: var(--font-display); font-size: 0.86rem; color: var(--ink-soft); }
.legend .sw { display: inline-block; width: 11px; height: 11px; border-radius: 3px; background: var(--c); margin-right: 7px; vertical-align: -1px; }
.legend .ln { display: inline-block; width: 22px; height: 0; border-top: 2.4px solid var(--ink-soft); margin-right: 7px; vertical-align: 3px; }
.legend .ln.dashed { border-top-style: dashed; }

/* ------------------------------------------------ hero task card */
.task-card {
  border-radius: 20px; padding: 12px; background: var(--surface); border: 1px solid var(--rule);
  box-shadow: 0 24px 60px rgba(179, 51, 106, 0.14), 0 8px 24px rgba(0, 0, 0, 0.18);
}
.task-stage { position: relative; border-radius: 12px; overflow: hidden; background: var(--tile-bg); aspect-ratio: 4 / 3; }
.task-stage video { width: 100%; height: 100%; object-fit: cover; display: block; }
.veil {
  position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--bg) 58%, transparent); backdrop-filter: blur(3px) saturate(60%);
  -webkit-backdrop-filter: blur(3px) saturate(60%); opacity: 0; transition: opacity 0.15s ease;
}
.veil.on { opacity: 1; }
.veil .q { font-family: var(--font-display); font-weight: 700; font-size: clamp(4rem, 12vw, 7rem); line-height: 1; color: var(--future); }
.veil .veil-txt { margin-top: 6px; font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--future); }
.stage-tag {
  position: absolute; left: 10px; top: 10px; font-family: var(--font-mono); font-size: 0.74rem; font-weight: 500;
  padding: 3px 8px; border-radius: 6px; color: #fff; background: rgba(18, 22, 32, 0.78);
}
.stage-tag.future { background: var(--future); }
.task-tactile { margin-top: 12px; padding: 8px 6px 4px; }
.task-tactile canvas { width: 100%; display: block; }
.glove-labels { display: grid; grid-template-columns: 21fr 3fr 21fr; margin-top: 6px; font-family: var(--font-display); font-size: 0.78rem; color: var(--muted); text-align: center; }
.glove-labels span:nth-child(2) { grid-column: 3; }
.task-key { margin-top: 6px; display: flex; justify-content: center; gap: 16px; font-family: var(--font-display); font-size: 0.78rem; color: var(--muted); }
.key-heat, .key-bend { display: inline-block; width: 22px; height: 8px; border-radius: 3px; margin-right: 6px; vertical-align: 0; }
.key-heat { background: linear-gradient(90deg, #fcfdbf, #fe9f6d, #de4968, #8c2981); }
.key-bend { width: 8px; height: 14px; vertical-align: -3px; background: linear-gradient(0deg, var(--tac-bend) 60%, var(--tac-track) 60%); }

/* ------------------------------------------------ timeline (CSS grid, doubles as the hero's progress bar) */
.tl-grid { display: grid; grid-template-columns: repeat(49, minmax(0, 1fr)); column-gap: 3px; row-gap: 6px; align-items: end; }
.tl-lab { grid-row: 1; font-family: var(--font-display); font-size: 0.82rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tl-lab.o { color: var(--h-obs); } .tl-lab.p { color: var(--h-pred); }
.tl-cell { grid-row: 2; height: 22px; border-radius: 4px; transition: transform 0.15s ease, opacity 0.15s ease; }
.tl-cell.o { background: var(--h-obs); } .tl-cell.p { background: var(--h-pred); }
.tl-cell.p2 { opacity: 0.72; } .tl-cell.p3 { opacity: 0.45; }
.tl-cell.now { transform: scaleY(1.35); box-shadow: 0 0 0 2px var(--h-head); }
.tl-cell.lit { transform: scaleY(1.2); filter: brightness(1.15) saturate(1.1); }
.tl-tick { grid-row: 3; font-family: var(--font-mono); font-size: 0.7rem; color: var(--h-muted); text-align: center; }
.tl-chunk { grid-row: 4; font-family: var(--font-mono); font-size: 0.7rem; color: var(--h-muted); text-align: center; border-top: 1px solid var(--h-muted); padding-top: 3px; margin-inline: 1px; opacity: 0.85; }
@media (max-width: 560px) {
  .tl-grid { column-gap: 1.5px; }
  .tl-cell { height: 16px; border-radius: 2px; }
  .tl-lab { font-size: 0.72rem; white-space: normal; line-height: 1.25; }
}

/* ------------------------------------------------ pipeline */
.pipe { display: grid; grid-template-columns: minmax(0, 0.9fr) 28px minmax(0, 1.6fr) 28px minmax(0, 0.9fr); gap: 14px; align-items: stretch; margin-top: 36px; }
.pcol { border-radius: 18px; background: var(--surface); border: 1px solid var(--rule); box-shadow: var(--shadow); padding: 16px; display: flex; flex-direction: column; gap: 12px; }
.phead { font-family: var(--font-display); font-weight: 700; font-size: 0.98rem; color: var(--ink); }
.pthumb { margin: 0; }
.pthumb img, .pthumb canvas { width: 100%; border-radius: 10px; display: block; background: var(--tile-bg); }
.pthumb figcaption { margin-top: 4px; font-family: var(--font-display); font-size: 0.78rem; color: var(--muted); }
.pinstr { font-size: 0.88rem; color: var(--ink-soft); font-style: italic; }
.parrow { align-self: center; height: 2px; background: var(--axis); position: relative; }
.parrow::after { content: ""; position: absolute; right: -1px; top: -5px; border: 6px solid transparent; border-left: 8px solid var(--axis); border-right: 0; }
.blocks { display: grid; grid-template-columns: repeat(30, minmax(0, 1fr)); gap: 3px; height: 92px; padding: 10px; border-radius: 12px; background: var(--tile-bg); }
.blk { border-radius: 3px; background: var(--rule); }
.blk.inj { background: var(--future); }
.pnote { font-family: var(--font-display); font-size: 0.82rem; color: var(--future); }
.pnote .dot { display: inline-block; width: 8px; height: 8px; border-radius: 2px; background: var(--future); margin-right: 6px; }
.tpath { display: grid; grid-template-columns: minmax(0, 1fr) 16px minmax(0, 1fr) 16px minmax(0, 1fr); gap: 8px; align-items: center; margin-top: auto; }
.tstep { border-radius: 12px; padding: 10px; background: color-mix(in srgb, var(--future) 8%, var(--surface)); border: 1px solid color-mix(in srgb, var(--future) 35%, var(--rule)); display: flex; flex-direction: column; gap: 6px; font-size: 0.86rem; }
.tstep b { font-family: var(--font-display); color: var(--future); }
.tstep img { width: 100%; border-radius: 8px; }
.tarrow { height: 2px; background: var(--future); position: relative; opacity: 0.8; }
.tarrow::after { content: ""; position: absolute; right: -1px; top: -5px; border: 6px solid transparent; border-left: 8px solid var(--future); border-right: 0; }
.ptag { border-radius: 10px; padding: 8px 10px; font-size: 0.86rem; display: flex; flex-direction: column; gap: 2px; }
.ptag b { font-family: var(--font-display); }
.ptag.train { background: color-mix(in srgb, var(--c-rise) 14%, var(--surface)); } .ptag.train b { color: var(--c-rise); }
.ptag.infer { background: color-mix(in srgb, var(--c-hold) 14%, var(--surface)); } .ptag.infer b { color: var(--c-hold); }
@media (max-width: 900px) {
  .pipe { grid-template-columns: 1fr; }
  .parrow { width: 2px; height: 24px; justify-self: center; }
  .parrow::after { right: auto; left: -5px; top: auto; bottom: -1px; border: 6px solid transparent; border-top: 8px solid var(--axis); border-bottom: 0; }
  .pobs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .pobs .phead, .pobs .pinstr { grid-column: 1 / -1; }
  .ppred { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .ppred .phead { grid-column: 1 / -1; }
  .ppred .pthumb { grid-row: span 2; }
}
@media (max-width: 560px) {
  .tpath { grid-template-columns: 1fr; }
  .tarrow { width: 2px; height: 14px; justify-self: center; }
  .tarrow::after { right: auto; left: -5px; top: auto; bottom: -1px; border: 6px solid transparent; border-top: 8px solid var(--future); border-bottom: 0; }
  .blocks { height: 64px; gap: 2px; padding: 8px; }
}

/* ------------------------------------------------ paper Figure 1 (tiles + radar) */
.fig1 { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 28px; align-items: center; margin-top: 36px; }
.fig1-tiles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.tile { margin: 0; }
.tile-media { position: relative; border-radius: 10px; overflow: hidden; background: var(--tile-bg); aspect-ratio: 4 / 3; }
.tile-media img { width: 100%; height: 100%; object-fit: cover; }
.tile-media.tac { display: flex; align-items: center; padding: 6px; }
.tile-media.tac canvas { width: 100%; }
.tile figcaption { margin-top: 5px; font-family: var(--font-display); font-size: 0.8rem; color: var(--muted); text-align: center; }
.tile.dtwm .tile-media { box-shadow: 0 0 0 2.5px var(--c-dtwm); }
.tile.dtwm figcaption { color: var(--c-dtwm); font-weight: 700; }
.markers { position: absolute; inset: 0; width: 100%; height: 100%; }
.fig1-radar .legend { justify-content: center; margin-top: 6px; }
.fig1-radar .legend .sw { background: var(--c); }
@media (max-width: 900px) { .fig1 { grid-template-columns: 1fr; } }
@media (max-width: 480px) { .fig1-tiles { gap: 6px; } .tile figcaption { font-size: 0.7rem; } }

/* ------------------------------------------------ comparison player */
.cmp { margin-top: 36px; }
.cmp-bar { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; }
.cmp-bar .switch { margin-top: 0; }
.cmp-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 14px; }
.ctile { margin: 0; }
.ctile video { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 10px; background: var(--tile-bg); display: block; }
.cmp.hands .ctile video { aspect-ratio: 1 / 1; }
.ctile figcaption { margin-top: 5px; font-family: var(--font-display); font-size: 0.84rem; color: var(--muted); }
.ctile.dtwm video { box-shadow: 0 0 0 2.5px var(--c-dtwm); }
.ctile.dtwm figcaption { color: var(--c-dtwm); font-weight: 700; }
.ctile.gt figcaption { color: var(--ink); font-weight: 600; }
.cmp.hands .cmp-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.cmp-progress { position: relative; display: flex; gap: 3px; height: 6px; margin-top: 14px; }
.cmp-progress .obs { background: var(--ink-soft); border-radius: 3px; opacity: 0.8; }
.cmp-progress .pred { background: var(--future); border-radius: 3px; }
.cmp-progress .head { position: absolute; top: -4px; width: 14px; height: 14px; margin-left: -7px; border-radius: 50%; background: var(--surface); border: 2.5px solid var(--ink); left: 0; transition: left 0.1s linear; }
.cmp-meta { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 6px; margin-top: 8px; font-family: var(--font-mono); font-size: 0.76rem; color: var(--muted); }
.cmp-phase.future { color: var(--future); }
@media (max-width: 900px) { .cmp.hands .cmp-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 560px) {
  .cmp-grid, .cmp.hands .cmp-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
  .ctile figcaption { font-size: 0.74rem; }
}

/* ------------------------------------------------ why touch helps (paper Figure 6 + force trend) */
.why-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 36px; align-items: start; margin-top: 36px; }
.motiv { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 14px; }
.mcol { display: flex; flex-direction: column; gap: 8px; }
.mhead { font-size: 1.02rem; font-weight: 700; text-align: center; }
.mimg { position: relative; margin: 0; border-radius: 10px; overflow: hidden; background: var(--tile-bg); }
.mimg img { width: 100%; aspect-ratio: 285 / 170; object-fit: cover; }
.mimg.out { box-shadow: 0 0 0 2.5px var(--b); }
.mtag { position: absolute; left: 7px; top: 7px; font-family: var(--font-mono); font-size: 0.7rem; padding: 2px 6px; border-radius: 5px; color: #fff; background: rgba(18, 22, 32, 0.72); }
.mtag.outcome { font-family: var(--font-display); font-weight: 700; font-size: 0.78rem; }
.mtag.lower { top: auto; bottom: 7px; }
.mlegend { grid-column: 1 / -1; justify-content: center; }
.why-grid .txt h3 { font-size: 1.3rem; font-weight: 700; }
.why-grid .txt p { margin-top: 10px; color: var(--ink-soft); }
.why-grid .txt .chart { margin-top: 18px; }
@media (max-width: 900px) { .why-grid { grid-template-columns: 1fr; } }

.tt-legend { margin-top: 28px; margin-bottom: 14px; }
#horizon-chart { margin-top: 12px; }
.markers .mk line { vector-effect: non-scaling-stroke; stroke-width: 2.5px; stroke-linecap: round; }
.markers .mk-l line { stroke: #f07aa8; }
.markers .mk-r line { stroke: #4fd199; }
.hz-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.hz-title { font-size: 1.05rem; font-weight: 700; } .hz-title span { font-weight: 400; color: var(--muted); font-size: 0.85rem; }
.hz-sub { margin-top: 12px; font-family: var(--font-display); font-size: 0.82rem; color: var(--muted); }
.chart-svg .shade { fill: var(--future); opacity: 0.06; }
.chart-svg .whisker { stroke: var(--ink-soft); stroke-width: 1.4; }
.chart-svg .fill.faded { opacity: 0.35; }
@media (max-width: 760px) { .hz-grid { grid-template-columns: 1fr; } }
.pmodel .blocks { flex: 1 1 auto; min-height: 92px; }
.pmodel .tpath { margin-top: 0; }
.chart-svg .panel-title.sub { font-weight: 500; fill: var(--ink-soft); font-size: 12.5px; }
@media (max-width: 560px) { .tl-tick.hide-narrow { visibility: hidden; } }