/* ============================================================
   LIBERO-Recover project page — v2
   Design language modeled on imitator-game.github.io:
   Apple-ish off-white canvas, white cards, blue accent, big
   radii, whisper-thin shadows, Noto Sans, video-reel hero,
   tabbed level widget, flip cards, figure deck.
   Light-only: every embedded paper figure is a white-surface
   PNG. Recovery-level colors keep the CVD-validated set.
   ============================================================ */

:root {
  color-scheme: light;

  --bg:            #fafaf9;   /* off-white canvas */
  --surface:       #f5f5f7;   /* system-gray band */
  --on-bg:         #ffffff;   /* pure white cards */
  --border:        rgba(0, 0, 0, 0.08);
  --border-strong: rgba(0, 0, 0, 0.14);
  --text:          #1d1d1f;
  --text-muted:    #6e6e73;

  --primary:       #0071e3;   /* Apple blue */
  --primary-hover: #0058b3;
  --primary-bg:    #e8f1fd;
  --good:          #006300;

  /* Recovery levels — validated 4-slot categorical (light mode).
     Hue pairs always ship with their text labels, never color alone. */
  --l1: #3577c9;  --l1-bg: #eaf2fb;
  --l2: #2f9e6e;  --l2-bg: #e9f5ef;
  --l3: #e08a1e;  --l3-bg: #fcf2e5;
  --l4: #b03030;  --l4-bg: #fbebea;

  --radius-sm: 8px;
  --radius:    14px;
  --radius-lg: 18px;
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 2px 8px rgba(0,0,0,.05);
  --shadow-lg: 0 4px 16px rgba(0,0,0,.08), 0 1px 3px rgba(0,0,0,.04);
  --ease: cubic-bezier(.4, 0, .2, 1);
  --dur-fast: 180ms;
}

* , *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 72px; -webkit-text-size-adjust: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Noto Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI',
               'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 16px; line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img, video { max-width: 100%; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
.mono { font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace; font-size: .88em; }

.lp-inner { max-width: 1060px; margin: 0 auto; padding: 0 26px; }
.lp-inner.wide { max-width: 1280px; }
.landing { display: block; }

/* ---------- scroll progress ---------- */

.scroll-progress {
  position: fixed; top: 0; left: 0; right: 0; height: 2.5px;
  z-index: 90; pointer-events: none;
}
.scroll-progress i {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--primary), #64b5f6);
  transition: width 80ms linear;
}

/* ---------- header ---------- */

.site-header {
  position: sticky; top: 0; z-index: 80;
  background: rgba(250, 250, 249, 0.82);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 26px;
  height: 56px; display: flex; align-items: center; gap: 20px;
}
.brand {
  font-size: 15.5px; font-weight: 400; color: var(--text);
  display: flex; align-items: center; gap: 9px; white-space: nowrap;
}
.brand b { font-weight: 700; }
.brand:hover { text-decoration: none; }
.brand-dot {
  width: 11px; height: 11px; border-radius: 3.5px;
  background: linear-gradient(135deg, var(--primary), #64b5f6); flex: none;
}
.header-nav { display: flex; gap: 2px; margin-left: auto; overflow-x: auto; scrollbar-width: none; }
.header-nav::-webkit-scrollbar { display: none; }
.header-nav a {
  font-size: 13.5px; color: var(--text-muted); padding: 6px 12px;
  border-radius: 999px; white-space: nowrap;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.header-nav a:hover { color: var(--text); background: rgba(0,0,0,.05); text-decoration: none; }
.header-nav a.active { color: var(--primary); background: var(--primary-bg); font-weight: 600; }
.header-end { display: flex; align-items: center; gap: 10px; }
.hbtn {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 13px; font-weight: 600; color: var(--text);
  border: 1px solid var(--border); background: var(--on-bg);
  padding: 6px 13px; border-radius: 999px;
  transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.hbtn:hover { border-color: var(--primary); color: var(--primary); text-decoration: none; }
.hbtn-tag {
  font-size: 9.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: var(--text-muted); background: rgba(0,0,0,.05);
  padding: 2px 7px; border-radius: 999px;
}

/* ---------- hero ---------- */

.hero-band {
  position: relative; overflow: hidden;
  padding: 88px 0 64px;
  display: flex; flex-direction: column; justify-content: center;
  min-height: calc(100vh - 56px);
}

.hero-reel {
  position: absolute; inset: 0; z-index: 0;
  display: flex; flex-direction: column; justify-content: center;
  gap: 14px; padding-block: 14px;
}
.reel-row {
  display: flex; align-items: center; gap: 14px;
  width: max-content; will-change: transform;
  animation: marquee var(--dur, 90s) linear infinite;
}
.reel-row[data-dir="right"] { animation-direction: reverse; }
@keyframes marquee { to { transform: translateX(-50%); } }

.reel-tile {
  position: relative; flex: none;
  width: 168px; height: 168px;
  border-radius: 12px; overflow: hidden;
  background: linear-gradient(135deg, var(--surface), var(--on-bg));
  border: 1.5px solid rgba(127, 127, 127, .22);
  box-shadow: 0 6px 16px rgba(0, 0, 0, .10);
}
.reel-tile.lv { box-shadow: 0 6px 16px color-mix(in srgb, var(--tone, var(--primary)) 32%, rgba(0,0,0,.08)); }
.reel-tile video { width: 100%; height: 100%; object-fit: cover; display: block; }

.hero-scrim {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(46% 58% at 50% 44%, rgba(250,250,249,.86), rgba(250,250,249,.30) 62%, transparent 78%),
    linear-gradient(180deg, var(--bg) 0%, transparent 12%, transparent 88%, var(--bg) 100%);
}

.hero-copy { position: relative; z-index: 2; text-align: center; }

.hero-badges { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; margin-bottom: 22px; }
.vbadge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12.5px; font-weight: 600; letter-spacing: .01em;
  color: var(--primary); background: var(--primary-bg);
  padding: 5px 13px; border-radius: 999px;
}
.vbadge.subtle { color: var(--text-muted); background: rgba(0,0,0,.05); }
.vbadge svg { opacity: .9; }
.pulse-dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--primary);
  animation: pulse 2.2s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: .45; transform: scale(.8); } }

.hero-title {
  font-size: clamp(46px, 7.2vw, 78px); line-height: 1.04;
  font-weight: 700; letter-spacing: -.025em;
  margin: 0 0 14px;
}
.hero-title .hl { color: var(--primary); }
.hero-tag {
  font-size: clamp(16px, 2.2vw, 21px); font-weight: 300;
  color: var(--text-muted); letter-spacing: .002em;
  max-width: 640px; margin: 0 auto 30px;
}
.hero-tag b { font-weight: 600; color: var(--text); }

.hero-authors { margin: 0 0 26px; display: flex; flex-direction: column; align-items: center; gap: 6px; }
.hero-author-names { font-size: 15.5px; color: var(--text-muted); font-weight: 400; }
.hero-affil { font-size: 13.5px; color: var(--text-muted); opacity: .8; }
.hero-venue-row { display: flex; gap: 8px; margin-top: 6px; }

.hero-cta { display: flex; justify-content: center; flex-wrap: wrap; gap: 11px; margin-bottom: 40px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 600;
  padding: 10px 20px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--on-bg); color: var(--text);
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}
.btn:hover { text-decoration: none; transform: translateY(-1px); box-shadow: var(--shadow); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-hover); }
.btn.ghost { background: transparent; border-color: transparent; color: var(--primary); }
.btn.ghost:hover { background: var(--primary-bg); }
.btn-tag {
  font-size: 9.5px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: var(--text-muted); background: rgba(0,0,0,.06);
  padding: 2px 7px; border-radius: 999px;
}
.btn.primary .btn-tag { color: rgba(255,255,255,.9); background: rgba(255,255,255,.18); }

.hero-metrics {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px;
  max-width: 980px; margin: 0 auto;
}
.hero-metrics.tight { grid-template-columns: repeat(5, 1fr); max-width: 860px; margin: 26px auto 10px; }
.hm {
  background: rgba(255, 255, 255, .72);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(0,0,0,.06); border-radius: var(--radius);
  padding: 14px 10px 12px; text-align: center;
}
.hm b { display: block; font-size: clamp(19px, 2.2vw, 25px); font-weight: 700; letter-spacing: -.02em; line-height: 1.1; }
.hm span { display: block; font-size: 11.5px; color: var(--text-muted); line-height: 1.4; margin-top: 5px; }

.hero-caret {
  position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%);
  z-index: 2; color: var(--text-muted);
  animation: caret 2.4s ease-in-out infinite;
}
@keyframes caret { 0%, 100% { transform: translate(-50%, 0); opacity: .55; } 50% { transform: translate(-50%, 7px); opacity: 1; } }

/* ---------- bands & eyebrows ---------- */

.band { padding: 84px 0 76px; background: var(--on-bg); }
.band.alt { background: var(--surface); }

.eyebrow { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.eyebrow .e-no {
  font-size: 11px; font-weight: 700; letter-spacing: .1em;
  color: var(--primary); background: var(--primary-bg);
  padding: 3px 9px; border-radius: 999px;
}
.eyebrow .e-label {
  font-size: 12px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--text-muted);
}
.eyebrow .e-rule { flex: 1; height: 1px; background: var(--border); max-width: 140px; }

.band-title {
  font-size: clamp(24px, 3.4vw, 34px); line-height: 1.22;
  letter-spacing: -.018em; font-weight: 700; margin: 0 0 12px; max-width: 880px;
}
.band-lede { color: var(--text-muted); font-size: 15.5px; max-width: 820px; margin: 0 0 30px; }
.band-lede b { color: var(--text); }

/* ---------- abstract & figures ---------- */

.abstract-card {
  background: var(--on-bg); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 28px 32px; box-shadow: var(--shadow); margin-bottom: 34px;
}
.band.alt .abstract-card { background: var(--bg); }
.abstract-card p { font-size: 15px; line-height: 1.78; }

.figcard {
  background: var(--on-bg); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 18px 18px 14px; box-shadow: var(--shadow); margin: 26px 0;
}
.band.alt .figcard { background: var(--bg); }
.figcard.wide { margin: 0; }
.figcard img { display: block; width: 100%; height: auto; border-radius: var(--radius-sm); background: var(--surface); }
.figcard figcaption {
  font-size: 13px; color: var(--text-muted); line-height: 1.6; padding: 12px 6px 2px;
}
.figcard figcaption b { color: var(--text); }
.figcard.scrollable { max-height: 640px; overflow-y: auto; }
.figcard.scrollable .sticky-cap {
  position: sticky; bottom: 0;
  background: linear-gradient(transparent, var(--on-bg) 45%);
}

/* ---------- level widget ---------- */

.lvl-widget { margin-top: 6px; }

.lvl-tabs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 18px; }
.lvl-tab {
  position: relative; display: flex; flex-direction: column; align-items: flex-start; gap: 8px;
  padding: 15px 16px 13px; text-align: left;
  border-radius: var(--radius-lg); border: 1.5px solid var(--border);
  background: var(--on-bg); color: var(--text-muted); cursor: pointer;
  font-family: inherit;
  transition: border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease),
              box-shadow var(--dur-fast) var(--ease);
}
.lvl-tab:hover { transform: translateY(-2px); border-color: var(--lvl-c); }
.lvl-tab:focus-visible { outline: 2px solid var(--lvl-c); outline-offset: 2px; }
.lvl-tab.is-active {
  border-color: var(--lvl-c);
  box-shadow: 0 0 0 1px var(--lvl-c) inset, var(--shadow);
}
.lvl-tab-id { font-size: 17px; font-weight: 700; letter-spacing: -.01em; color: var(--lvl-c); line-height: 1; }
.lvl-tab-name { font-size: 13px; font-weight: 600; color: var(--text); line-height: 1.3; }
.lvl-tab-dist { display: flex; gap: 3px; width: 100%; margin-top: 2px; }
.lvl-tab-dist i { flex: 1; height: 4px; border-radius: 2px; background: var(--border); transition: background var(--dur-fast) var(--ease); }
.lvl-tab-dist i.is-filled { background: var(--lvl-c); }

.lvl-stage {
  display: grid; grid-template-columns: 1.15fr 1fr; gap: 28px; align-items: stretch;
  background: var(--on-bg); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 22px; box-shadow: var(--shadow);
}
.band.alt .lvl-stage { background: var(--bg); }

.lvl-stage-media {
  position: relative; aspect-ratio: 1 / 1; border-radius: var(--radius);
  overflow: hidden; background: #000; cursor: pointer;
}
.lvl-video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; display: block;
}
.lvl-video[hidden] { display: none; }

.play-badge {
  position: absolute; right: 12px; bottom: 12px; z-index: 2;
  width: 36px; height: 36px; border-radius: 999px;
  background: rgba(0, 0, 0, .55); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; pointer-events: none;
  transition: opacity .2s, background .2s;
}
.video-box:hover .play-badge, .lvl-stage-media:hover .play-badge, .suite-media:hover .play-badge { background: rgba(0,0,0,.8); }
.playing .play-badge { opacity: 0; }
.speed-badge {
  position: absolute; left: 12px; top: 12px; z-index: 2;
  font-size: 11px; font-weight: 600; letter-spacing: .03em;
  color: #fff; background: rgba(0, 0, 0, .5);
  padding: 4px 10px; border-radius: 999px; pointer-events: none;
}

.lvl-stage-info { display: flex; flex-direction: column; padding: 6px 4px; }
.lvl-stage-badge {
  align-self: flex-start;
  font-size: 12.5px; font-weight: 700; letter-spacing: .04em;
  color: #fff; background: var(--lvl-c);
  padding: 5px 12px; border-radius: 999px;
  transition: background var(--dur-fast) var(--ease);
}
.lvl-stage-name { font-size: 23px; font-weight: 700; letter-spacing: -.015em; margin: 14px 0 8px; }
.lvl-stage-blurb { font-size: 14.5px; line-height: 1.68; color: var(--text-muted); }
.lvl-capability { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.cap-chip {
  font-size: 12px; font-weight: 600; color: var(--text-muted);
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 999px; padding: 4px 11px;
}
.lvl-stage-stat { margin-top: auto; padding-top: 20px; border-top: 1px solid var(--border); }
.lvl-stage-stat-v {
  display: block; font-size: 34px; font-weight: 700; letter-spacing: -.02em; line-height: 1;
  color: var(--lvl-c); transition: color var(--dur-fast) var(--ease);
}
.lvl-stage-stat-l { display: block; font-size: 12.5px; color: var(--text-muted); margin-top: 7px; line-height: 1.5; max-width: 38ch; }

/* failure definition callout */
.defn {
  margin-top: 30px; background: var(--on-bg); border: 1px solid var(--border);
  border-left: 3px solid var(--primary); border-radius: var(--radius);
  padding: 22px 28px;
}
.band.alt .defn { background: var(--bg); }
.defn h3 { margin: 0 0 8px; font-size: 16.5px; }
.defn p { color: var(--text-muted); font-size: 14.5px; }
.formula {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 13px; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 11px 15px; margin: 12px 0 0;
  color: var(--text); overflow-x: auto; white-space: nowrap;
}
.formula i { color: var(--text-muted); font-style: normal; }

/* ---------- pipeline ---------- */

.pipeline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.stage {
  position: relative;
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 24px 26px;
}
.band .stage { background: var(--surface); }
.stage-no {
  font-size: 11.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--primary); margin-bottom: 9px;
}
.stage h3 { margin: 0 0 8px; font-size: 17.5px; letter-spacing: -.01em; }
.stage p { font-size: 13.8px; color: var(--text-muted); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.chip {
  font-size: 12px; font-weight: 600; color: var(--text-muted);
  background: var(--on-bg); border: 1px solid var(--border);
  padding: 3px 10px; border-radius: 999px; white-space: nowrap;
}
.stage-arrow {
  position: absolute; top: 28px; right: -15px; z-index: 2;
  color: var(--text-muted); font-size: 17px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 999px; width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center;
}
.band .stage-arrow { background: var(--on-bg); }

/* ---------- dataset: flip suite cards ---------- */

.suite-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 30px 0 8px; }
.suite-card { perspective: 1400px; cursor: pointer; }
.flip-inner {
  position: relative; width: 100%; height: 100%;
  transform-style: preserve-3d;
  transition: transform .55s var(--ease);
}
.suite-card:hover .flip-inner, .suite-card:focus-visible .flip-inner, .suite-card.is-flipped .flip-inner {
  transform: rotateY(180deg);
}
.flip-face {
  background: var(--on-bg); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow);
  -webkit-backface-visibility: hidden; backface-visibility: hidden;
}
.flip-face.front { position: relative; display: flex; flex-direction: column; }
.suite-media { position: relative; aspect-ratio: 1 / 1; background: #000; cursor: pointer; }
.suite-media video { width: 100%; height: 100%; object-fit: cover; display: block; }
.suite-label {
  padding: 12px 14px 13px; display: flex; flex-direction: column; gap: 2px;
  border-top: 1px solid var(--border);
}
.suite-label b { font-size: 14.5px; letter-spacing: -.01em; }
.suite-label span { font-size: 12px; color: var(--text-muted); }
.flip-face.back {
  position: absolute; inset: 0; transform: rotateY(180deg);
  padding: 18px; display: flex; flex-direction: column; gap: 8px;
}
.back-title { font-size: 15px; letter-spacing: -.01em; color: var(--primary); }
.flip-face.back p { font-size: 12.5px; color: var(--text-muted); line-height: 1.55; }
.tasklist { list-style: none; margin-top: 4px; display: flex; flex-direction: column; gap: 6px; }
.tasklist li {
  font-size: 12px; color: var(--text); line-height: 1.45;
  padding-left: 14px; position: relative;
}
.tasklist li::before {
  content: ""; position: absolute; left: 0; top: .52em;
  width: 6px; height: 6px; border-radius: 2px; background: var(--primary);
}
.suite-hint { font-size: 12.5px; color: var(--text-muted); text-align: center; margin: 6px 0 26px; opacity: .85; }

/* ---------- demo explorer ---------- */

.explorer-filter { display: flex; flex-wrap: wrap; gap: 8px; margin: 4px 0 20px; }
.filter-pill {
  font-size: 13px; font-weight: 600; color: var(--text-muted);
  background: var(--on-bg); border: 1px solid var(--border);
  border-radius: 999px; padding: 6px 15px; cursor: pointer; user-select: none;
  transition: all var(--dur-fast) var(--ease);
}
.filter-pill:hover { border-color: var(--primary); color: var(--primary); }
.filter-pill.active { background: var(--primary); border-color: var(--primary); color: #fff; }

.demo-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.demo-card {
  background: var(--on-bg); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; display: flex; flex-direction: column; box-shadow: var(--shadow);
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.demo-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.demo-card .video-box {
  position: relative; background: #000; aspect-ratio: 1 / 1; cursor: pointer; overflow: hidden;
}
.demo-card video { width: 100%; height: 100%; object-fit: cover; display: block; }
.demo-body { padding: 12px 14px 13px; display: flex; flex-direction: column; gap: 6px; }
.demo-task { font-size: 13px; line-height: 1.45; font-weight: 550; }
.demo-meta { display: flex; align-items: center; gap: 8px; font-size: 11.5px; color: var(--text-muted); }
.suite-tag {
  font-size: 10.5px; font-weight: 700; letter-spacing: .05em;
  color: var(--text-muted); background: var(--surface); border: 1px solid var(--border);
  border-radius: 4px; padding: 1px 7px; white-space: nowrap;
}
.demo-card.hidden { display: none; }

.task-details { margin-top: 26px; }
.task-details summary {
  cursor: pointer; font-size: 14px; font-weight: 600; color: var(--primary);
  list-style: none; user-select: none;
}
.task-details summary::-webkit-details-marker { display: none; }
.task-details summary::before { content: "▸ "; }
.task-details[open] summary::before { content: "▾ "; }
.task-details .figcard { margin-top: 14px; }

/* ---------- metrics ---------- */

.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.metric {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 22px 24px;
}
.band.alt .metric { background: var(--on-bg); }
.metric .m-name { display: flex; align-items: baseline; gap: 9px; }
.metric .m-abbr { font-size: 21px; font-weight: 700; color: var(--primary); letter-spacing: -.01em; }
.metric .m-full { font-size: 12.5px; color: var(--text-muted); }
.metric .formula { margin: 13px 0; }
.metric p { font-size: 13px; color: var(--text-muted); }

/* ---------- figure deck ---------- */

.figdeck { margin: 6px 0 40px; }
.figdeck-head { display: flex; align-items: center; justify-content: flex-end; margin-bottom: 10px; }
.figdeck-controls {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 999px; padding: 4px;
}
.band .figdeck-controls { background: var(--surface); }
.figdeck-arrow {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 50%;
  border: 1px solid var(--border); background: var(--on-bg); color: var(--text-muted);
  font-size: 16px; line-height: 1; cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
}
.figdeck-arrow:hover:not(:disabled) { border-color: var(--primary); color: var(--primary); transform: translateY(-1px); }
.figdeck-arrow:disabled { opacity: .3; cursor: default; }
.figdeck-counter {
  font-size: 13px; font-weight: 700; color: var(--text-muted);
  font-variant-numeric: tabular-nums; min-width: 3.6em; text-align: center;
}
.figdeck-rail { display: flex; gap: 6px; margin: 0 0 16px; }
.figdeck-dot {
  flex: 1; max-width: 48px; height: 4px; border-radius: 2px;
  background: var(--border); cursor: pointer; border: none; padding: 0;
  transition: background var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.figdeck-dot:hover { transform: scaleY(1.4); }
.figdeck-dot.is-active { background: var(--primary); }

.figdeck-panel { display: none; }
.figdeck-panel.is-active { display: block; animation: fig-in 420ms var(--ease); }
@keyframes fig-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.ig-figure {
  background: var(--on-bg); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px 26px; box-shadow: var(--shadow);
}
.band .ig-figure { background: var(--on-bg); }
.ig-figure-head { display: flex; align-items: baseline; gap: 10px; margin-bottom: 6px; flex-wrap: wrap; }
.ig-figure-tag {
  font-size: 10.5px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase;
  color: var(--primary); background: var(--primary-bg);
  padding: 3px 9px; border-radius: 999px;
}
.ig-figure-title { font-size: 18px; font-weight: 700; letter-spacing: -.01em; }
.ig-figure > img {
  width: 100%; height: auto; display: block;
  border-radius: var(--radius-sm); background: var(--surface); margin-top: 8px;
}
.ig-figure-caption { margin-top: 14px; font-size: 13.5px; line-height: 1.65; color: var(--text-muted); }
.ig-figure-caption b { color: var(--text); }

/* ---------- findings ---------- */

.findings { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.finding {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 24px 26px;
}
.band .finding { background: var(--surface); }
.finding-head { display: flex; gap: 13px; align-items: flex-start; margin-bottom: 10px; }
.f-no {
  flex: none; width: 30px; height: 30px; border-radius: 9px;
  background: var(--primary-bg); color: var(--primary);
  font-size: 14px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; margin-top: 1px;
}
.finding h3 { font-size: 16.5px; line-height: 1.35; letter-spacing: -.01em; }
.finding > p { color: var(--text-muted); font-size: 14px; line-height: 1.66; }
.finding .pos { color: var(--good); }
.finding .neg { color: var(--l4); }

.find-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }

.table-card {
  background: var(--on-bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px; overflow-x: auto; margin-top: 14px;
}
.t-caption { font-size: 12.5px; color: var(--text-muted); margin: 0 0 10px; }
table.data {
  border-collapse: collapse; width: 100%; font-size: 13px;
  font-variant-numeric: tabular-nums;
}
table.data th, table.data td { padding: 7px 11px; text-align: right; }
table.data th:first-child, table.data td:first-child { text-align: left; }
table.data thead th {
  font-size: 11.5px; font-weight: 650; color: var(--text-muted);
  border-bottom: 2px solid var(--border-strong); white-space: nowrap;
}
table.data tbody tr { border-bottom: 1px solid var(--border); }
table.data tbody tr:last-child { border-bottom: none; }
table.data .group-row td {
  text-align: left; font-weight: 700; font-size: 11px; letter-spacing: .08em;
  text-transform: uppercase; color: var(--text-muted); padding-top: 13px;
}
table.data tr.delta td { color: var(--good); font-weight: 600; }
table.data td.best { font-weight: 650; }

/* ---------- citation ---------- */

.bibtex-box {
  position: relative; background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 22px 26px;
}
.band.alt .bibtex-box { background: var(--on-bg); }
.bibtex-box pre {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 13px; line-height: 1.62; color: var(--text); overflow-x: auto;
}
.copy-btn {
  position: absolute; top: 14px; right: 14px;
  font-family: inherit; font-size: 12px; font-weight: 600; color: var(--text-muted);
  background: var(--on-bg); border: 1px solid var(--border); border-radius: 999px;
  padding: 6px 14px; cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
}
.copy-btn:hover { border-color: var(--primary); color: var(--primary); }
.copy-btn.copied { background: var(--good); border-color: var(--good); color: #fff; }

/* ---------- footer ---------- */

.lp-footer {
  border-top: 1px solid var(--border); background: var(--on-bg);
  padding: 34px 0 46px;
}
.lp-footer p { font-size: 13px; color: var(--text-muted); margin: 4px 0; }
.foot-levels { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 12px; }
.foot-levels span { display: inline-flex; align-items: center; gap: 7px; font-size: 12px; color: var(--text-muted); }
.foot-levels i { width: 9px; height: 9px; border-radius: 2.5px; display: inline-block; }

/* ---------- reveal on scroll ---------- */

.reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- responsive ---------- */

@media (max-width: 1080px) {
  .hero-metrics { grid-template-columns: repeat(3, 1fr); }
  .hero-metrics.tight { grid-template-columns: repeat(3, 1fr); }
  .suite-grid, .demo-grid { grid-template-columns: repeat(2, 1fr); }
  .findings, .find-pair { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .lvl-stage { grid-template-columns: 1fr; }
  .lvl-tabs { grid-template-columns: repeat(2, 1fr); }
  .pipeline, .metrics { grid-template-columns: 1fr; }
  .stage-arrow { display: none; }
  .reel-tile { width: 118px; height: 118px; }
}
@media (max-width: 640px) {
  .lp-inner, .lp-inner.wide, .header-inner { padding: 0 18px; }
  .header-nav { display: none; }
  .hero-band { padding: 56px 0 48px; min-height: auto; }
  .hero-metrics, .hero-metrics.tight { grid-template-columns: repeat(2, 1fr); }
  .suite-grid, .demo-grid { grid-template-columns: 1fr; }
  .band { padding: 56px 0 50px; }
  .abstract-card { padding: 20px 18px; }
  .lvl-tabs { grid-template-columns: repeat(2, minmax(140px, 1fr)); overflow-x: auto; }
  .finding { padding: 18px 16px; }
}

/* ---------- reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reel-row { animation: none; }
  .hero-caret, .pulse-dot { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .figdeck-panel.is-active { animation: none; }
  .flip-inner, .demo-card, .lvl-tab, .btn { transition: none; }
}