/* ============================================================
   Gen2Balance — project page styles
   ============================================================ */

:root {
  --ink:        #0f1722;
  --ink-soft:   #33414f;
  --muted:      #6b7785;
  --line:       #e4e8ee;
  --bg:         #ffffff;
  --bg-soft:    #f6f8fb;
  --accent:     #14855a;   /* "generated" green from the paper figures */
  --accent-dk:  #0d6443;
  --accent-2:   #2563eb;   /* real-data blue */
  --maroon:     #8a2846;   /* "our finding" insight lines */
  --warn:       #b45309;
  --radius:     14px;
  --maxw:       1040px;
  --shadow:     0 1px 2px rgba(16,23,34,.04), 0 8px 30px rgba(16,23,34,.06);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent-dk); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(1200px 500px at 50% -200px, rgba(20,133,90,.10), transparent 60%),
    linear-gradient(180deg, var(--bg-soft), var(--bg));
  border-bottom: 1px solid var(--line);
  padding: 64px 0 40px;
  text-align: center;
}

.venue {
  display: inline-block;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--accent-dk);
}
.venue-line { margin: 10px 0 2px; }

/* collapsible TL;DR (subtle toggle, below the buttons) */
.tldr-details { max-width: 720px; margin: 14px auto 0; text-align: center; }
.tldr-summary {
  display: inline-flex; align-items: center; gap: 6px; cursor: pointer;
  list-style: none; user-select: none;
  font-size: 13px; font-weight: 600; color: var(--muted);
  padding: 3px 6px; border-radius: 8px; transition: color .15s;
}
.tldr-summary::-webkit-details-marker { display: none; }
.tldr-summary:hover { color: var(--accent-dk); }
.tldr-chev { font-size: 9px; transition: transform .2s; }
.tldr-details[open] .tldr-summary { color: var(--accent-dk); }
.tldr-details[open] .tldr-chev { transform: rotate(180deg); }
.tldr-details:not([open]) .tldr-body { display: none; }
.tldr-body {
  margin: 10px auto 0; max-width: 720px;
  padding: 14px 20px; text-align: left;
  font-size: 15.5px; line-height: 1.55; color: var(--ink);
  background: linear-gradient(180deg, rgba(20,133,90,.07), rgba(20,133,90,.04));
  border: 1px solid rgba(20,133,90,.22);
  border-left: 4px solid var(--accent);
  border-radius: 12px;
}
.tldr-body b { color: var(--accent-dk); }

.title {
  font-size: clamp(28px, 4.6vw, 46px);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 auto 6px;
  max-width: 900px;
}
.title .brand { color: var(--accent); }

.subtitle {
  font-size: clamp(15px, 2vw, 18px);
  color: var(--ink-soft);
  margin: 4px auto 26px;
  max-width: 720px;
}

/* ---------- Authors ---------- */
.authors {
  font-size: 17px;
  margin: 18px auto 6px;
  max-width: 840px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 26px;
}
.authors .author { white-space: nowrap; }
.authors a { color: var(--ink); border-bottom: 1px solid var(--line); }
.authors a:hover { color: var(--accent-dk); text-decoration: none; border-color: var(--accent); }
.authors sup { color: var(--accent); font-weight: 600; }
.affil { color: var(--muted); font-size: 14.5px; margin: 4px auto 2px; }
.affil sup { color: var(--accent); }

.todo-note {
  display: inline-block;
  font-size: 12.5px;
  color: var(--warn);
  background: #fff7ed;
  border: 1px dashed #f0c089;
  border-radius: 8px;
  padding: 3px 9px;
  margin-top: 8px;
}

/* ---------- Buttons ---------- */
.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin: 15px auto 4px;
}
/* dark rounded-pill publication buttons (Nerfies / WiLoR style) */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  background: #363636;
  color: #fff;
  border: none;
  transition: background .18s ease;
}
.btn:hover { text-decoration: none; background: #1f1f1f; }
.btn .ico { width: 17px; height: 17px; display: inline-block; }
/* keep all buttons the same dark pill (modifiers retained for markup compatibility) */
.btn--ghost, .btn--accent { background: #363636; color: #fff; border: none; }
.btn--ghost:hover, .btn--accent:hover { background: #1f1f1f; }

/* ---------- Sections ---------- */
section { padding: 52px 0; border-bottom: 1px solid var(--line); }
section:last-of-type { border-bottom: none; }
.section-eyebrow { display: none; }
h2.section-title {
  text-align: center;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800; letter-spacing: -0.02em;
  margin: 0 0 28px;
}
h3 { font-size: 19px; font-weight: 700; margin: 26px 0 8px; }

p.lead { font-size: 15.5px; line-height: 1.5; }

/* "our finding" insight lines (maroon) */
.insight {
  text-align: center; max-width: 760px; margin: -8px auto 14px;
  font-size: 15.5px; line-height: 1.5; font-weight: 500; color: var(--maroon);
}
.insight b { color: var(--maroon); font-weight: 800; }

/* "this is interactive" badge with a gentle pulsing dot */
.ix-badge {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12px; font-weight: 700; letter-spacing: .03em;
  color: var(--accent-dk); background: rgba(20,133,90,.10);
  border: 1px solid rgba(20,133,90,.28); border-radius: 999px; padding: 4px 12px;
}
.ix-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); position: relative; flex: none; }
.ix-dot::after {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  background: var(--accent); animation: ix-pulse 1.8s ease-out infinite;
}
@keyframes ix-pulse { 0% { transform: scale(1); opacity: .55; } 70%, 100% { transform: scale(2.6); opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .ix-dot::after { animation: none; } }

/* ---------- Figures ---------- */
figure { margin: 0; }
.fig {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow);
}
.fig img { width: 100%; height: auto; display: block; border-radius: 8px; }
.showcase { width: 100%; height: auto; display: block; border-radius: 8px; background: #000; }
figcaption {
  font-size: 14px; color: var(--muted);
  margin-top: 12px; line-height: 1.55;
}
figcaption b { color: var(--ink-soft); }

.abstract-box {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 30px;
  font-size: 16.5px;
  color: var(--ink-soft);
}
.abstract-box .brand { color: var(--accent-dk); font-weight: 700; }

/* ---------- Contribution cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 22px;
  box-shadow: var(--shadow);
}
.card .num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 8px;
  background: rgba(20,133,90,.10); color: var(--accent-dk);
  font-weight: 800; font-size: 15px; margin-bottom: 10px;
}
.card h4 { margin: 0 0 6px; font-size: 18px; font-weight: 700; letter-spacing: -0.01em; }
.card p { margin: 0; font-size: 14.5px; color: var(--ink-soft); }
.card-head { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.card-head .num { margin-bottom: 0; flex: none; }
.card-head h4 { margin: 0; }
.cards--tight .card { padding: 18px 20px; }
.cards--tight .num { width: 26px; height: 26px; margin-bottom: 8px; font-size: 14px; }
.cards--tight .card p { font-size: 14px; line-height: 1.5; }

/* ---------- Stats / headline numbers ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: 8px;
}
.stat {
  text-align: center;
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px 12px; box-shadow: var(--shadow);
}
.stat .big { font-size: clamp(26px, 4vw, 38px); font-weight: 800; color: var(--accent); letter-spacing: -0.02em; }
.stat .lab { font-size: 13px; color: var(--muted); margin-top: 4px; line-height: 1.4; }

/* ---------- Two-stage steps ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 6px; }
.step {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow); position: relative;
}
.step .tag { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); }
.step h4 { margin: 6px 0 6px; font-size: 16px; }
.step p { margin: 0; font-size: 14px; color: var(--ink-soft); }

/* ---------- Video gallery ---------- */
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.gallery .vid {
  background: #000; border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--line); box-shadow: var(--shadow);
}
.gallery video { width: 100%; display: block; aspect-ratio: 16/9; object-fit: cover; background: #111; }
.gallery .cap { background: #fff; padding: 10px 12px; font-size: 13px; color: var(--ink-soft); }
.gallery .cap b { color: var(--ink); }
.placeholder-note {
  text-align: center; color: var(--warn);
  background: #fff7ed; border: 1px dashed #f0c089; border-radius: var(--radius);
  padding: 18px; font-size: 14.5px;
}

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; background: #fff; }
th, td { padding: 11px 16px; text-align: center; border-bottom: 1px solid var(--line); }
th { background: var(--bg-soft); font-weight: 700; color: var(--ink); }
td:first-child, th:first-child { text-align: left; }
tbody tr:last-child td { border-bottom: none; }
tr.highlight td { background: rgba(20,133,90,.09); }
tr.highlight td:first-child { color: var(--accent-dk); }
tr.rt-ref td { color: #9aa6b2; font-style: italic; }
td.rt-best { font-weight: 800; color: var(--ink); }
tr.highlight td.rt-best { color: var(--accent-dk); }
.rt-gen { color: var(--accent); font-weight: 800; }
.rt-no { color: #c4cdd8; }
.gain { color: var(--accent); font-weight: 700; }

/* group-colored Few / Tail / Head columns (matching the paper) */
#rt-table th.col-few  { color: #14855a; }
#rt-table th.col-tail { color: #db2777; }
#rt-table th.col-head { color: #2563eb; }
#rt-table td:nth-child(3), #rt-table th.col-few  { background: rgba(20,133,90,.06); }
#rt-table td:nth-child(4), #rt-table th.col-tail { background: rgba(219,39,119,.06); }
#rt-table td:nth-child(5), #rt-table th.col-head { background: rgba(37,99,235,.06); }
#rt-table tr.highlight td:nth-child(3) { background: rgba(20,133,90,.16); }
#rt-table tr.highlight td:nth-child(4) { background: rgba(219,39,119,.13); }
#rt-table tr.highlight td:nth-child(5) { background: rgba(37,99,235,.12); }

/* ---------- Rare actions (RareAct) ---------- */
#rareact { padding-top: 40px; padding-bottom: 40px; }
.ra-result {
  max-width: 720px; margin: 0 auto;
  display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 30px;
}
.ra-stat { text-align: center; }
.ra-big {
  font-size: clamp(30px, 4.4vw, 30px); font-weight: 800;
  color: var(--accent); line-height: 1; letter-spacing: -0.02em;
}
.ra-stat-sub { font-size: 12.5px; font-weight: 600; color: var(--muted); margin-top: 6px; line-height: 1.4; }
.ra-bars { margin-top: 0; }
.ra-row { display: grid; grid-template-columns: 132px 1fr 50px; align-items: center; gap: 12px; margin: 9px 0; }
.ra-m { font-size: 14px; color: var(--ink-soft); }
.ra-track { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 999px; height: 18px; overflow: hidden; }
.ra-fill { display: block; height: 100%; border-radius: 999px; background: #9aa6b2; transition: width .6s ease; }
.ra-v { font-size: 14px; font-weight: 700; text-align: right; color: var(--ink-soft); }
.ra-row--ours .ra-fill { background: var(--accent); }
.ra-row--ours .ra-m, .ra-row--ours .ra-v { font-weight: 800; color: var(--accent-dk); }
.ra-cap { text-align: center; font-size: 13px; color: var(--muted); margin: 14px auto 0; max-width: 600px; line-height: 1.55; }
.ra-cap b { color: var(--ink-soft); }

.ra-gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 16px; }
.ra-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 12px; }
.ra-name { font-weight: 700; font-size: 14.5px; text-align: center; margin-bottom: 9px; }
.ra-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.ra-slot .pipe-ph { aspect-ratio: 16/10; width: 100%; }
.ra-slot-lab { text-align: center; font-size: 11.5px; font-weight: 600; color: var(--muted); margin-top: 5px; }
.ra-slot-lab.ra-gen { color: var(--accent-dk); }
@media (max-width: 760px) {
  .ra-result { grid-template-columns: 1fr; gap: 14px; }
  .ra-gallery { grid-template-columns: 1fr; }
  .ra-row { grid-template-columns: 110px 1fr 46px; }
}

/* ---------- Scaling study (interactive) ---------- */
.sv-panels { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.sv-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 10px 14px 6px;
}
.sv-cap { font-size: 12px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--muted); margin-bottom: 2px; }
.sv-svg { display: block; }
.sv-svg .sv-ax { font-size: 10.5px; fill: var(--muted); }
.sv-svg .sv-axl { font-size: 11.5px; fill: var(--ink-soft); font-weight: 600; }
.sv-svg .sv-leg { font-size: 11px; fill: var(--ink-soft); }
.sv-svg .sv-klab { font-size: 11px; font-weight: 700; fill: var(--ink); }

#sv-control { margin-top: 16px; display: flex; flex-direction: column; align-items: center; gap: 12px; }
#sv-slider { width: min(560px, 100%); accent-color: var(--accent); cursor: pointer; height: 4px; }
#sv-readout { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 18px; font-size: 14px; color: var(--ink-soft); }
#sv-readout b { color: var(--ink); }
.sv-ro-k {
  font-weight: 800; color: var(--accent-dk);
  background: rgba(20,133,90,.10); border: 1px solid rgba(20,133,90,.25);
  border-radius: 999px; padding: 2px 12px;
}
.sv-delta { color: var(--accent); font-weight: 700; }
@media (max-width: 760px) { .sv-panels { grid-template-columns: 1fr; } }

.takeaway {
  background: linear-gradient(180deg, rgba(20,133,90,.08), rgba(20,133,90,.04));
  border: 1px solid rgba(20,133,90,.22);
  border-radius: var(--radius);
  padding: 24px 24px;
}
.takeaway-tag {
  display: inline-block;
  font-size: 11.5px; font-weight: 800; letter-spacing: .08em;
  color: #fff; background: var(--accent);
  padding: 3px 10px; border-radius: 6px; margin-bottom: 12px;
}
.takeaway p { margin: 0 0 10px; font-size: 16px; color: var(--ink); line-height: 1.55; }
.takeaway p b { color: var(--accent-dk); }
.takeaway .takeaway-foot { font-size: 14px; color: var(--ink-soft); margin: 0; }
.takeaway .takeaway-foot b { color: var(--ink-soft); }
@media (max-width: 760px) { .scaling-grid { grid-template-columns: 1fr; } }

/* ---------- Code / BibTeX ---------- */
pre.bibtex {
  background: var(--ink); color: #e7edf3;
  border-radius: var(--radius); padding: 22px 24px;
  overflow-x: auto; font-size: 13.5px; line-height: 1.6;
  font-family: "SF Mono", "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
}
.copy-row { display: flex; justify-content: flex-end; margin-bottom: 8px; }
.copy-btn {
  font-size: 13px; font-weight: 600; cursor: pointer;
  background: #fff; border: 1px solid var(--line); border-radius: 8px;
  padding: 6px 12px; color: var(--ink-soft);
}
.copy-btn:hover { border-color: var(--accent); color: var(--accent-dk); }

/* ---------- Footer ---------- */
footer { padding: 36px 0 56px; text-align: center; color: var(--muted); font-size: 13.5px; }
footer a { color: var(--ink-soft); }
.footer-note { max-width: 680px; margin: 0 auto; }

/* ---------- Generation pipeline diagram ---------- */
/* Fixed-width diagram scaled to fit by JS (fitPipeline), so it shrinks like an
   image instead of reflowing on small screens. */
.pipe-fit { width: 100%; overflow: hidden; }
.pipeline {
  display: flex;
  align-items: stretch;
  justify-content: center;
  flex-wrap: nowrap;
  gap: 10px;
  width: 880px;
  transform-origin: top left;
}
.pipe-node {
  flex: 1 1 0;
  min-width: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px 16px 18px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.pipe-node--model { background: var(--bg-soft); }
.pipe-cap { font-size: 11.5px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.pipe-chip {
  font-size: 15px; font-weight: 700; color: var(--ink);
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 10px; padding: 8px 12px;
}
.pipe-chip--accent { background: rgba(20,133,90,.10); border-color: rgba(20,133,90,.25); color: var(--accent-dk); }
.pipe-sub { font-size: 12.5px; color: var(--ink-soft); line-height: 1.45; }
.pipe-prompt {
  font-size: 12px; font-style: italic; color: var(--ink-soft); line-height: 1.5;
  background: #fff; border: 1px solid var(--line); border-radius: 8px;
  padding: 8px 10px; text-align: left;
}
.pipe-arrow { display: flex; align-items: center; font-size: 26px; color: var(--muted); font-weight: 700; }
.pipe-thumbs { display: flex; gap: 8px; width: 100%; }
.pipe-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; width: 100%; }
.pipe-ph--gen { width: 100%; aspect-ratio: 16/11; margin-top: 2px; }
.pipe-ph {
  aspect-ratio: 16/10;
  background: repeating-linear-gradient(45deg, #f1f4f8, #f1f4f8 7px, #e9eef4 7px, #e9eef4 14px);
  border: 1px dashed #c4cdd8;
  border-radius: 7px;
  display: flex; align-items: center; justify-content: center;
}
.pipe-ph { position: relative; overflow: hidden; }
.pipe-ph span { font-size: 10.5px; font-weight: 600; color: #9aa6b2; text-transform: uppercase; letter-spacing: .05em; }
.pipe-ph--sm { flex: 1; aspect-ratio: 1/1; }
.pipe-vid {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; display: block;
  opacity: 0; transition: opacity .35s ease; z-index: 1;
}
.pipe-vid.loaded { opacity: 1; }   /* fades in over the dashed placeholder once a clip loads */

/* ---------- Per-class explorer ---------- */
.exp-controls { display: flex; flex-wrap: wrap; gap: 18px; justify-content: center; margin: 0 0 18px; }
.exp-ctl-group { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.exp-ctl-label { font-size: 11.5px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.exp-seg-wrap { display: inline-flex; background: var(--bg-soft); border: 1px solid var(--line); border-radius: 999px; padding: 3px; }
.exp-seg {
  border: none; background: transparent; cursor: pointer;
  font-size: 13.5px; font-weight: 600; color: var(--ink-soft);
  padding: 6px 14px; border-radius: 999px; transition: background .12s, color .12s;
}
.exp-seg:hover { color: var(--ink); }
.exp-seg.active { background: #fff; color: var(--accent-dk); box-shadow: var(--shadow); }

.exp-bench-badge {
  display: inline-block;
  font-size: 13px; font-weight: 700; letter-spacing: .03em;
  color: var(--accent-dk);
  background: rgba(20,133,90,.10);
  border: 1px solid rgba(20,133,90,.28);
  padding: 5px 14px; border-radius: 999px;
}
.exp-summary { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 14px; }
.exp-chip {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; border: 1px solid var(--line); border-radius: 999px;
  padding: 8px 14px; font-size: 13.5px; box-shadow: var(--shadow);
}
.exp-chip .dot { width: 9px; height: 9px; border-radius: 50%; }
.exp-chip-lab { font-weight: 600; color: var(--ink); }
.exp-chip-val { font-weight: 800; }
.exp-chip-sub { color: var(--muted); font-size: 12px; }

.exp-chartwrap { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 12px 4px; box-shadow: var(--shadow); }
.exp-svg { display: block; }
.exp-bar { cursor: pointer; transition: opacity .1s; }
.exp-bar:hover { opacity: .75; }
.exp-bar.sel { stroke: var(--ink); stroke-width: 1.4; }
.exp-axis { font-size: 10.5px; fill: var(--muted); font-family: inherit; }
.exp-band-lab { font-size: 10.5px; font-weight: 700; opacity: .8; font-family: inherit; }
.exp-hint { text-align: center; font-size: 12.5px; color: var(--muted); margin: 8px 0 0; }

.exp-tip {
  position: fixed; z-index: 50; display: none; pointer-events: none;
  background: var(--ink); color: #eef2f6; font-size: 12.5px; line-height: 1.5;
  padding: 8px 11px; border-radius: 9px; max-width: 230px; box-shadow: 0 8px 24px rgba(0,0,0,.25);
}

.exp-detail { margin-top: 18px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 22px 24px; opacity: 0; transform: translateY(6px); transition: opacity .2s, transform .2s; }
.exp-detail.show { opacity: 1; transform: none; }
.exp-detail-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; flex-wrap: wrap; }
.exp-detail-head h4 { margin: 0 0 8px; font-size: 20px; }
.exp-badges { display: flex; gap: 7px; flex-wrap: wrap; }
.exp-badge { font-size: 12px; font-weight: 600; color: var(--ink-soft); background: var(--bg-soft); border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px; }
.exp-deltabig { font-size: 32px; font-weight: 800; line-height: 1; text-align: right; }
.exp-deltabig small { display: block; font-size: 11.5px; font-weight: 600; color: var(--muted); margin-top: 4px; }

.exp-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 20px; }
.exp-sub { font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.exp-stack { display: flex; height: 16px; border-radius: 6px; overflow: hidden; background: var(--bg-soft); }
.exp-stack span { display: block; height: 100%; }
.exp-stack-legend { display: flex; gap: 16px; margin-top: 7px; font-size: 13px; color: var(--ink-soft); }
.exp-stack-legend i { display: inline-block; width: 9px; height: 9px; border-radius: 2px; margin-right: 5px; }
.exp-acc-row { display: grid; grid-template-columns: 92px 1fr 48px; align-items: center; gap: 10px; margin: 7px 0; }
.exp-acc-name { font-size: 13px; color: var(--ink-soft); }
.exp-acc-track { background: var(--bg-soft); border-radius: 999px; height: 11px; overflow: hidden; }
.exp-acc-fill { display: block; height: 100%; border-radius: 999px; transition: width .5s ease; }
.exp-acc-val { font-size: 13px; font-weight: 700; text-align: right; color: var(--ink); }
.exp-vids { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.exp-vid { position: relative; border-radius: 10px; overflow: hidden; border: 1px solid var(--line); aspect-ratio: 16/10; background: #0d1722; }
.exp-vid video { width: 100%; height: 100%; object-fit: contain; display: block; }
.exp-vid-lab { position: absolute; left: 8px; bottom: 8px; font-size: 11px; font-weight: 700; color: #fff; background: rgba(13,23,34,.7); padding: 2px 8px; border-radius: 6px; }
.exp-vid--ph { background: var(--bg-soft); border-style: dashed; }
.exp-vid-ph { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; color: var(--muted); }
.exp-vid-ph span { font-size: 13px; font-weight: 700; color: var(--ink-soft); }
.exp-vid-ph small { font-size: 11px; }

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  .cards, .stats, .steps, .gallery { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .exp-detail-grid { grid-template-columns: 1fr; gap: 20px; }
  .exp-controls { gap: 12px; }
  section { padding: 40px 0; }
}