/* ============================================================
   ScoreMol — design system v2 (instrument / document feel)
   ============================================================ */
:root {
  --bg: #0a0c0f;
  --bg-alt: #0d1015;
  --surface: #10141a;
  --raised: #151a22;
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text: #e8ebf0;
  --muted: #a0a8b3;
  --faint: #6f7782;
  --accent: #57e8b4;
  --good: #57e8b4;
  --bad: #f0764f;
  --accent-dim: rgba(87, 232, 180, 0.12);
  --blue: #6fa8ff;
  --amber: #f5c46b;
  --red: #f0764f;
  --violet: #b79bff;
  --font-sans: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --radius: 8px;
  --maxw: 1180px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 96px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: var(--accent); color: #07130e; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #232a34; border-radius: 5px; }

.mono { font-family: var(--font-mono); }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

h1, h2, h3, h4 { font-family: var(--font-sans); font-weight: 600; line-height: 1.15; letter-spacing: -0.01em; }
.hero h1, .sec-head h2, .score-head h2 { font-family: "IBM Plex Serif", Georgia, serif; font-weight: 600; }

img, svg, canvas { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

/* ============ Buttons ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 13px 24px; border-radius: 6px;
  background: var(--accent); color: #07130e;
  font-family: var(--font-mono); font-weight: 700; font-size: 14px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 22px rgba(87, 232, 180, 0.22); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border-strong); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); box-shadow: none; }
.btn-small { padding: 10px 18px; font-size: 14px; }

/* ============ Nav ============ */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10, 12, 15, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: background .2s ease;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 82px; }

.brand { display: inline-flex; align-items: center; gap: 11px; }
.brand-mark { width: 34px; height: 34px; color: var(--text); flex: none; }
.brand-word { font-weight: 700; font-size: 21px; letter-spacing: -0.02em; }
.brand-word em { font-style: normal; font-weight: 400; color: var(--good); }

.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a:not(.btn) {
  font-family: var(--font-mono); font-size: 15px; color: var(--muted);
  transition: color .15s ease;
}
.nav-links a:not(.btn):hover { color: var(--text); }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; width: 40px; height: 40px; position: relative; }
.nav-toggle span { position: absolute; left: 9px; right: 9px; height: 2px; background: var(--text); transition: transform .2s ease, top .2s ease; }
.nav-toggle span:nth-child(1) { top: 15px; }
.nav-toggle span:nth-child(2) { top: 23px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { top: 19px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { top: 19px; transform: rotate(-45deg); }

/* ============ Hero ============ */
.hero { padding: 148px 0 56px; }
.hero-grid {
  display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: center;
}

.eyebrow {
  font-size: 14.5px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 20px;
}
.hero h1 { font-size: clamp(2.5rem, 5vw, 3.7rem); font-weight: 700; letter-spacing: -0.025em; line-height: 1.06; }
.lede { color: var(--muted); font-size: 18px; line-height: 1.6; }
.hero .lede { margin-top: 22px; max-width: 30em; }

.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

/* Hero leaderboard panel */
.hero-board {
  border: 1px solid var(--border-strong); border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  overflow: hidden;
}
.panel-head {
  display: flex; align-items: center; gap: 10px;
  padding: 13px 18px; font-size: 13.5px; color: var(--muted);
  border-bottom: 1px solid var(--border); background: var(--raised);
}
.panel-rel { margin-left: auto; color: var(--faint); }
.live-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--good); flex: none;
  animation: pulse 2.2s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }
.panel-foot {
  display: block; padding: 12px 18px; font-size: 14px; color: var(--accent);
  border-top: 1px solid var(--border); background: var(--raised);
  transition: background .15s ease;
}
.panel-foot:hover { background: #1a2029; }

/* ============ Hero flip leaderboard ============ */
.flip-stage { position: relative; height: 404px; overflow: hidden; }
.slide {
  position: absolute; inset: 0; padding: 20px 22px 14px;
  opacity: 0; transform: translateY(36px); pointer-events: none;
  transition: opacity .45s cubic-bezier(.22,.61,.36,1), transform .45s cubic-bezier(.22,.61,.36,1);
}
.slide.active { opacity: 1; transform: none; pointer-events: auto; }
.slide.leaving { opacity: 0; transform: translateY(-36px); }

.slide-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 5px; }
.slide-id { font-family: var(--font-mono); font-size: 14px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); }
.slide-dir {
  font-family: var(--font-mono); font-size: 11.5px; color: var(--muted);
  border: 1px solid var(--border-strong); border-radius: 5px; padding: 2px 9px;
}
.slide-metric { font-size: 15px; color: var(--muted); margin-bottom: 20px; }

.bar-row { display: grid; grid-template-columns: 24px 148px 1fr auto; gap: 10px; align-items: center; margin-bottom: 11px; }
.bar-rank { font-family: var(--font-mono); font-size: 12px; color: var(--faint); }
.bar-row.first .bar-rank { color: var(--good); font-weight: 600; }
.bar-name { font-size: 14px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bar-row.first .bar-name { font-weight: 600; }
.bar-track { position: relative; height: 22px; background: rgba(255,255,255,.045); border-radius: 4px; }
.bar-row.first .bar-track::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px;
  background: var(--good); border-radius: 4px 0 0 4px; z-index: 1;
}
.bar-fill {
  position: absolute; left: 0; top: 0; bottom: 0; width: 0;
  background: rgba(148, 158, 168, 0.5); border-radius: 0 4px 4px 0;
  transition: width .6s cubic-bezier(.22,.61,.36,1);
}
.bar-row.first .bar-fill { background: var(--good); }
.slide.vendor .bar-row.first .bar-fill { background: var(--blue); }
.slide.vendor .bar-row.first .bar-rank { color: var(--blue); }
.slide.vendor .bar-row.first .bar-track::before { background: var(--blue); }
.bar-val { font-family: var(--font-mono); font-size: 13.5px; font-weight: 600; white-space: nowrap; }

.slide-bottom {
  position: absolute; left: 22px; right: 22px; bottom: 14px;
  display: flex; justify-content: space-between; align-items: center;
}
.mat-chip {
  font-family: var(--font-mono); font-size: 11.5px; color: var(--muted);
  border: 1px solid var(--border-strong); border-radius: 5px; padding: 3px 10px;
}
.slide-n { font-family: var(--font-mono); font-size: 11.5px; color: var(--faint); }

.flip-dashes {
  display: flex; gap: 6px; padding: 13px 22px;
  border-top: 1px solid var(--border); background: var(--raised);
}
.dash { flex: 1; height: 3px; background: rgba(255,255,255,.1); border-radius: 2px; cursor: pointer; position: relative; overflow: hidden; }
.dash i { position: absolute; left: 0; top: 0; bottom: 0; width: 0; background: var(--accent); }
.dash.done i { width: 100%; opacity: .35; }
.dash.active i { animation: dashfill 3.2s linear forwards; }
@keyframes dashfill { from { width: 0; } to { width: 100%; } }
.flip-panel-paused .dash.active i { animation-play-state: paused; }
.pareto-dashes { border-top: none; background: none; padding: 14px 0 4px; }
.pareto-dashes .dash.active i { animation-duration: 4.5s; }
#paretoSvg { transition: opacity .22s ease; }

/* ============ Material-class filter ============ */
.mat-filter {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  margin-bottom: 22px; font-size: 13px;
}
.mat-label { color: var(--faint); font-size: 12.5px; margin-right: 6px; text-transform: uppercase; letter-spacing: 0.08em; }
.mat-filter button {
  background: none; border: 1px solid var(--border-strong); border-radius: 6px;
  color: var(--muted); font-family: var(--font-mono); font-size: 13px;
  padding: 6px 14px; cursor: pointer;
  transition: color .15s ease, border-color .15s ease, background .15s ease;
}
.mat-filter button:hover { color: var(--text); }
.mat-filter button.active { color: var(--accent); border-color: var(--accent); background: var(--accent-dim); }

.bench-tags { display: flex; flex-direction: column; gap: 8px; align-items: flex-end; flex: none; }
.bench-mat {
  font-size: 12px; color: var(--muted);
  border: 1px solid var(--border-strong); background: transparent;
  padding: 5px 12px; border-radius: 6px; white-space: nowrap;
}
.bench-tab.hidden, .bench-group.hidden { display: none; }


.board-hero { min-width: 0; }
.board-hero td { padding: 13px 18px; border-bottom: 1px solid var(--border); }
.board-hero tr:last-child td { border-bottom: none; }

/* Numbers strip */
.numbers {
  display: flex; flex-wrap: wrap; gap: 12px 36px; align-items: baseline;
  margin-top: 48px; padding: 18px 0; font-size: 15px; color: var(--muted);
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.numbers b { color: var(--text); font-weight: 600; margin-right: 7px; }
.num-dim { margin-left: auto; color: var(--faint); font-size: 13.5px; }

/* ============ Sections ============ */
.section { padding: 64px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.sec-head { margin-bottom: 44px; max-width: 720px; }
.sec-rule {
  display: flex; align-items: center; gap: 16px;
  font-size: 14.5px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 22px;
}
.sec-rule::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.sec-head h2 { font-size: clamp(1.8rem, 3.4vw, 2.5rem); letter-spacing: -0.02em; }
.sec-head .lede { margin-top: 12px; font-size: 17px; }

/* Ruled rows (scope, methodology) */
.rows { border-top: 1px solid var(--border); }
.row-item {
  display: grid; grid-template-columns: 72px 1fr auto; gap: 24px; align-items: baseline;
  padding: 24px 8px; border-bottom: 1px solid var(--border);
  transition: background .15s ease;
}
.row-item:hover { background: rgba(255, 255, 255, 0.02); }
/* a row with no tag/count column must not be squeezed into the 72px lane */
.row-item > *:only-child { grid-column: 1 / -1; }
.row-tag { font-size: 14px; color: var(--accent); }
.row-item h3 { font-size: 19px; margin-bottom: 5px; }
.row-item p { color: var(--muted); font-size: 15.5px; max-width: 56em; }
.row-item p + p { margin-top: 10px; }
.row-n { font-size: 14px; color: var(--faint); white-space: nowrap; }

/* ============ Rankings ============ */
.bench { display: grid; grid-template-columns: 272px 1fr; gap: 22px; align-items: start; }
.bench-nav { display: flex; flex-direction: column; gap: 4px; position: sticky; top: 92px; }
.bench-group {
  font-family: var(--font-mono); font-size: 12.5px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--faint); padding: 14px 12px 5px;
}
.bench-tab {
  text-align: left; background: none; border: 1px solid transparent; border-radius: 6px;
  padding: 10px 12px; cursor: pointer; color: var(--muted);
  font-family: var(--font-sans); font-size: 14.5px; font-weight: 500;
  transition: background .12s ease, color .12s ease, border-color .12s ease;
}
.bench-tab:hover { color: var(--text); background: var(--surface); }
.bench-tab.active { color: var(--text); background: var(--surface); border-color: var(--border-strong); }
.bench-tab.active::before { content: "▸ "; color: var(--accent); }

.bench-panel {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px 26px 18px; min-width: 0;
}
.bench-info { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; margin-bottom: 18px; }
.bench-info h3 { font-size: 21px; }
.bench-info p { color: var(--muted); font-size: 15px; margin-top: 6px; max-width: 48em; }
.bench-metric {
  flex: none; font-size: 12px; color: var(--accent);
  border: 1px solid var(--accent-dim); background: var(--accent-dim);
  padding: 6px 12px; border-radius: 6px; white-space: nowrap;
}
.bench-note { font-size: 13px; color: var(--faint); margin-top: 14px; }

.table-wrap { overflow-x: auto; }
.board { width: 100%; border-collapse: collapse; min-width: 600px; }
.board th, .board td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--border); }
.board th { font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--faint); font-weight: 500; }
.board td { font-size: 15px; }
.board tbody tr { transition: background .1s ease; }
.board tbody tr:hover { background: rgba(255, 255, 255, 0.025); }
.board tbody tr:last-child td { border-bottom: none; }
.board .rank { font-family: var(--font-mono); font-size: 13px; color: var(--faint); }
.board tr.leader .rank { color: var(--good); font-weight: 600; }
.board .m-name { font-weight: 600; }
.board .m-score { font-family: var(--font-mono); font-weight: 600; white-space: nowrap; }
.board .m-ci { color: var(--faint); font-weight: 400; font-size: 12.5px; margin-left: 6px; }
.board .m-num { font-family: var(--font-mono); font-size: 13.5px; color: var(--muted); }
.board .m-str { color: var(--muted); font-size: 14.5px; }
.board th.sortable { cursor: pointer; user-select: none; }
.board th.sortable:hover { color: var(--text); }
.board th .arrow { display: inline-block; min-width: 10px; font-size: 9px; color: var(--accent); }

.badge {
  display: inline-block; font-family: var(--font-mono); font-size: 12px; font-weight: 500;
  padding: 3px 9px; border-radius: 5px; border: 1px solid; white-space: nowrap;
}
.badge-dft, .badge-comm, .badge-mlip, .badge-mgga, .badge-open,
.badge-gnn, .badge-gga, .badge-acad, .badge-dml, .badge-hyb,
.badge-aimd, .badge-wf { color: var(--muted); border-color: var(--border-strong); background: transparent; }
.badge-good { color: var(--good); border-color: rgba(87,232,180,.35); background: rgba(87,232,180,.08); }
.badge-info { color: var(--blue); border-color: rgba(111,168,255,.35); background: rgba(111,168,255,.08); }
.badge-bad { color: var(--bad); border-color: rgba(240,118,79,.35); background: rgba(240,118,79,.08); }

/* Pareto */
.pareto {
  margin-top: 22px; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px;
}
.pareto-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; margin-bottom: 6px; }
.pareto-head h3 { font-size: 21px; }
.pareto-head p { color: var(--muted); font-size: 15px; margin-top: 6px; max-width: 54em; }
.legend { display: flex; flex-wrap: wrap; gap: 14px; font-size: 12px; color: var(--muted); flex: none; padding-top: 4px; }
.legend span { display: inline-flex; align-items: center; gap: 7px; }
.legend i { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }

.pareto-wrap { position: relative; }
#paretoSvg { width: 100%; height: auto; }
.pareto-wrap .axis { font-family: var(--font-mono); font-size: 11px; fill: var(--faint); }
.pareto-wrap .axis-title { font-family: var(--font-mono); font-size: 12px; fill: var(--muted); }
.pareto-wrap .grid { stroke: rgba(255,255,255,0.05); stroke-width: 1; }
.pareto-wrap .domain { stroke: rgba(255,255,255,0.16); stroke-width: 1; }
.pareto-wrap .frontier { stroke: var(--accent); stroke-width: 1.6; stroke-dasharray: 5 5; fill: none; opacity: .8; }
.pareto-wrap .pt { cursor: pointer; }
.pareto-wrap .pt.dim { opacity: .45; }
.pareto-wrap .pt circle.core { stroke: rgba(0,0,0,.5); stroke-width: 1; }
.pareto-wrap .pt circle.halo { fill: transparent; stroke: transparent; }
.pareto-wrap .pt:hover circle.halo { stroke: rgba(255,255,255,.25); }
.pareto-wrap .pt-label { font-family: var(--font-mono); font-size: 10.5px; fill: var(--muted); pointer-events: none; }

.tooltip {
  position: absolute; z-index: 10; pointer-events: none;
  background: rgba(13,16,21,.95); border: 1px solid var(--border-strong);
  border-radius: 8px; padding: 10px 13px; font-size: 12.5px; line-height: 1.55;
  color: var(--text); box-shadow: 0 10px 30px rgba(0,0,0,.45); max-width: 240px;
}
.tooltip b { color: var(--accent); font-weight: 600; }
.tooltip .tt-sub { color: var(--faint); }

/* ============ Coverage / periodic table ============ */
.ptable-wrap { position: relative; overflow-x: auto; padding-bottom: 6px; }
.ptable { display: grid; grid-template-columns: repeat(18, minmax(40px, 1fr)); gap: 4px; min-width: 840px; }
.pt-cell {
  aspect-ratio: 1; display: flex; align-items: center; justify-content: center;
  border-radius: 4px; border: 1px solid rgba(255,255,255,0.06);
  font-family: var(--font-mono); font-size: 13.5px; color: var(--muted);
  cursor: default; transition: transform .1s ease, border-color .1s ease;
}
.pt-cell:hover { transform: scale(1.14); border-color: var(--accent); z-index: 2; position: relative; }
.pt-cell.hot { color: #07130e; font-weight: 600; }
.pt-gap { border: none; background: none; cursor: default; }
.pt-gap:hover { transform: none; border-color: transparent; }
.pt-gap span { font-size: 9px; color: var(--faint); }
.ptable-legend { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--faint); margin-top: 18px; }
.ptable-scale { width: 180px; height: 8px; border-radius: 4px; background: linear-gradient(90deg, rgba(87,232,180,.06), rgba(87,232,180,.95)); }

/* ============ Submit ============ */
.submit-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.submit-copy .lede { margin-top: 16px; }
.submit-form { display: flex; gap: 10px; margin-top: 28px; max-width: 460px; }
.submit-form input {
  flex: 1; min-width: 0; background: var(--surface); border: 1px solid var(--border-strong);
  border-radius: 6px; padding: 13px 16px; color: var(--text);
  font-family: var(--font-mono); font-size: 14px; outline: none;
  transition: border-color .15s ease;
}
.submit-form input:focus { border-color: var(--accent); }
.submit-form input::placeholder { color: var(--faint); }
.submit-ok { margin-top: 16px; color: var(--good); font-size: 13.5px; }

/* Terminal */
.terminal {
  border: 1px solid var(--border-strong); border-radius: var(--radius);
  background: #0b0e12; overflow: hidden;
  box-shadow: 0 24px 60px rgba(0,0,0,.35);
}
.terminal-head {
  display: flex; align-items: center; gap: 7px;
  padding: 11px 16px; background: var(--raised); border-bottom: 1px solid var(--border);
}
.terminal-head i { width: 10px; height: 10px; border-radius: 50%; background: #2a313c; }
.terminal-head i:first-child { background: rgba(240,118,79,.7); }
.terminal-head i:nth-child(2) { background: rgba(245,196,107,.7); }
.terminal-head i:nth-child(3) { background: rgba(87,232,180,.7); }
.terminal-head span { margin-left: 8px; font-size: 12px; color: var(--faint); }
.terminal pre {
  padding: 20px 22px; font-size: 13.5px; line-height: 1.75;
  color: #c9d1d9; overflow-x: auto; white-space: pre;
}
.terminal .t-ok { color: var(--good); }
.terminal .t-go { color: var(--blue); }
.terminal .t-dim { color: var(--faint); }

/* ============ Footer ============ */
.footer { border-top: 1px solid var(--border); background: var(--bg-alt); padding: 56px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 36px; }
.footer-brand p { color: var(--muted); font-size: 14.5px; margin-top: 14px; max-width: 26em; }
.notice-panel {
  border: 1px solid rgba(245, 196, 107, 0.30);
  background: rgba(245, 196, 107, 0.06);
  border-radius: var(--radius); padding: 22px 24px; margin: 26px 0 8px;
}
.notice-panel p { color: var(--muted); font-size: 15px; max-width: 62ch; }
.notice-panel p + p { margin-top: 12px; }
.notice-panel b { color: var(--text); font-weight: 600; }
.notice-tag {
  color: var(--amber); font-size: 11px; text-transform: uppercase;
  letter-spacing: 0.12em; font-weight: 600; margin-bottom: 10px;
}
.notice-panel .hero-cta { margin-top: 20px; }
.preview-banner {
  background: rgba(245, 196, 107, 0.09);
  border-bottom: 1px solid rgba(245, 196, 107, 0.28);
  font-size: 13px; color: var(--muted); padding: 9px 0;
}
.preview-banner .container { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.preview-banner strong {
  color: var(--amber); font-size: 11px; text-transform: uppercase;
  letter-spacing: 0.1em; font-weight: 600; flex: none;
}
.preview-banner a { color: var(--muted); text-decoration: underline; text-underline-offset: 2px; }
.preview-banner a:hover { color: var(--text); }
.footer-social { margin-top: 18px; }
.footer-social a {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--muted); font-size: 13px; padding: 7px 13px;
  border: 1px solid var(--border-strong); border-radius: var(--radius);
  transition: color .15s ease, border-color .15s ease;
}
.footer-social a:hover { color: var(--accent); border-color: var(--accent); }
.footer-col h4 { font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--faint); margin-bottom: 12px; font-weight: 500; }
.footer-col a { display: block; color: var(--muted); font-size: 14.5px; padding: 4px 0; transition: color .15s ease; }
.footer-col a:hover { color: var(--text); }
.footer-base {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
  margin-top: 44px; padding-top: 20px; border-top: 1px solid var(--border);
  font-size: 12px; color: var(--faint);
}

/* ============ Reveal ============ */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity .55s ease, transform .55s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

/* ============ Responsive ============ */
@media (max-width: 1020px) {
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .hero { padding-top: 150px; }
  .hero-copy { max-width: 640px; }
  .hero-board { max-width: 680px; }
  .bench { grid-template-columns: 1fr; }
  .bench-nav { position: static; flex-direction: row; overflow-x: auto; gap: 8px; padding-bottom: 10px; }
  .bench-group { display: none; }
  .bench-tab { flex: none; border-color: var(--border); font-size: 14px; }
  .submit-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  html { scroll-padding-top: 96px; }

  .nav-inner { height: 72px; }
  .brand-mark { width: 30px; height: 30px; }
  .brand-word { font-size: 19px; }
  .nav-links {
    position: fixed; top: 72px; left: 0; right: 0; z-index: 99;
    flex-direction: column; align-items: stretch; gap: 0;
    background: rgba(10,12,15,.97); backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: 10px 24px 20px;
    transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: opacity .18s ease, transform .18s ease;
  }
  .nav-links.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-links a:not(.btn) { padding: 14px 0; font-size: 16px; border-bottom: 1px solid var(--border); }
  .nav-links .btn { margin-top: 14px; }
  .nav-toggle { display: block; }

  .hero { padding-top: 122px; }
  .hero h1 { font-size: clamp(2.3rem, 9vw, 3rem); }
  .hero-cta .btn { flex: 1; }
  .section { padding: 60px 0; }

  /* flip panel */
  .flip-stage { height: 398px; }
  .slide { padding: 16px 14px 12px; }
  .slide-id { font-size: 13px; }
  .slide-dir { font-size: 10.5px; padding: 2px 7px; }
  .slide-metric { font-size: 13.5px; margin-bottom: 14px; }
  .bar-row { grid-template-columns: 20px 96px 1fr auto; gap: 8px; margin-bottom: 10px; }
  .bar-rank { font-size: 11px; }
  .bar-name { font-size: 12.5px; }
  .bar-track { height: 20px; }
  .bar-val { font-size: 12px; }
  .slide-bottom { left: 14px; right: 14px; bottom: 12px; }
  .mat-chip { font-size: 10.5px; padding: 2px 8px; }
  .slide-n { font-size: 10.5px; }
  .flip-dashes { padding: 11px 14px; }

  /* numbers strip */
  .numbers { gap: 8px 20px; font-size: 14px; padding: 14px 0; margin-top: 36px; }
  .num-dim { margin-left: 0; width: 100%; font-size: 12px; }

  /* rows */
  .row-item { grid-template-columns: 1fr; gap: 4px; padding: 20px 4px; }
  .row-n { order: -1; font-size: 13px; }

  /* rankings */
  .mat-filter { font-size: 12px; gap: 6px; }
  .mat-label { width: 100%; font-size: 11.5px; }
  .mat-filter button { font-size: 12px; padding: 5px 11px; }
  .bench-info { flex-direction: column; }
  .bench-tags { flex-direction: row; align-items: center; }
  .bench-panel, .pareto { padding: 18px 14px; }
  .board th { font-size: 11.5px; }
  .board td { font-size: 14px; }
  .bench-note { font-size: 12px; }

  /* periodic table */
  .ptable { grid-template-columns: repeat(18, minmax(26px, 1fr)); gap: 3px; min-width: 540px; }
  .pt-cell { font-size: 10px; border-radius: 3px; }
  .pt-gap span { font-size: 7.5px; }
  .ptable-legend { font-size: 11.5px; }
  .ptable-scale { width: 120px; }

  /* submit + terminal */
  .submit-form { flex-direction: column; }
  .terminal pre { font-size: 12px; padding: 16px; }

  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .footer-base { flex-direction: column; }
}

/* small phones */
@media (max-width: 400px) {
  .bar-row { grid-template-columns: 18px 84px 1fr auto; gap: 6px; }
  .bar-name { font-size: 12px; }
  .hero-cta { flex-direction: column; }
}

/* ============================================================
   v3 — app shell, rankings app, scorecards, docs
   ============================================================ */

/* synthetic-data banner */
.synth-banner {
  background: #3d2b10;
  color: #f5c46b;
  font-size: 13px;
  line-height: 1.5;
  text-align: center;
  padding: 8px 16px;
  border-bottom: 1px solid rgba(245,196,107,.25);
}
.synth-banner b { font-weight: 600; }

.app-loading { padding: 140px 0; color: var(--faint); }

/* pages */
.page { padding-top: 56px; }
.hero { padding-top: 64px; }
h1, h2, h3 { text-wrap: balance; }
.lede, .card p, .row-item p { text-wrap: pretty; }
.lede { max-inline-size: 62ch; }
.doc { max-width: 900px; }
.inline-link { color: var(--accent); border-bottom: 1px solid rgba(87,232,180,.35); }
.inline-link:hover { border-bottom-color: var(--accent); }
.crumb { font-size: 13px; color: var(--faint); margin-bottom: 18px; }
.crumb a { color: var(--muted); }
.crumb a:hover { color: var(--text); }

/* scorecard head */
.score-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; margin-bottom: 36px; }
.score-head h2 { font-size: clamp(1.9rem, 3.4vw, 2.6rem); }
.ver { color: var(--faint); font-size: 0.55em; font-weight: 500; }
.comp-line { font-size: 13.5px; color: var(--accent); }
.badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.sub-h { font-size: 20px; margin: 40px 0 16px; }
.sub-n { color: var(--faint); font-size: 13px; font-weight: 400; margin-left: 10px; }

/* badges — new kinds */
.badge-cont { color: var(--amber); border-color: rgba(245,196,107,.4); background: rgba(245,196,107,.1); }
.badge-ft { color: var(--muted); border-color: var(--border-strong); border-style: dashed; background: transparent; }
.tie-mark { color: var(--amber); margin-left: 4px; }

/* capability matrix */
.cap-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.cap {
  font-family: var(--font-mono); font-size: 12.5px; padding: 5px 11px;
  border-radius: 5px; border: 1px solid var(--border); cursor: default;
}
.cap-yes { color: var(--good); border-color: rgba(87,232,180,.3); background: rgba(87,232,180,.06); }
.cap-no { color: var(--faint); opacity: .55; }

/* key-value panel */
.kv-panel { border-top: 1px solid var(--border); }
.kv-row {
  display: grid; grid-template-columns: 240px 1fr; gap: 18px;
  padding: 13px 8px; border-bottom: 1px solid var(--border);
  font-size: 15px; align-items: baseline;
}
.kv-k { color: var(--faint); font-size: 13px; }

/* code blocks */
.code-block {
  background: #0b0e12; border: 1px solid var(--border-strong); border-radius: var(--radius);
  padding: 18px 20px; font-size: 13.5px; line-height: 1.7; color: #c9d1d9;
  overflow-x: auto; white-space: pre; margin: 12px 0;
}
.plain-list { list-style: none; margin: 10px 0; }
.plain-list li { padding: 6px 0 6px 20px; position: relative; color: var(--muted); font-size: 14px; }
.plain-list li::before { content: "▸"; position: absolute; left: 0; color: var(--accent); }
.rel-note { padding: 12px 4px; border-bottom: 1px solid var(--border); color: var(--muted); font-size: 14.5px; }
.rel-note b { color: var(--accent); margin-right: 10px; }

/* gap rows */
.row-gap td { color: var(--faint); }
.row-gap .m-name a { color: var(--muted); }

/* ============ rankings app ============ */
.surface-tabs {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-bottom: 24px; font-size: 13.5px;
}
.surface-tab {
  background: none; border: 1px solid var(--border-strong); border-radius: 6px;
  color: var(--muted); font-family: var(--font-mono); font-size: 13.5px;
  padding: 8px 16px; cursor: pointer;
  transition: color .15s ease, border-color .15s ease, background .15s ease;
}
.surface-tab:hover { color: var(--text); }
.surface-tab.active { color: var(--accent); border-color: var(--accent); background: var(--accent-dim); }

.rk-layout { display: grid; grid-template-columns: 292px 1fr; gap: 22px; align-items: start; }

.rk-rail {
  position: sticky; top: 100px;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); display: flex; flex-direction: column;
  max-height: calc(100vh - 120px);
}
.rail-search { padding: 12px; border-bottom: 1px solid var(--border); }
.rail-search input {
  width: 100%; background: var(--bg); border: 1px solid var(--border-strong);
  border-radius: 6px; padding: 9px 12px; color: var(--text); font-size: 13px; outline: none;
}
.rail-search input:focus { border-color: var(--accent); }
.rail-scroll { overflow-y: auto; padding: 8px; }

.rail-suite { padding: 9px 10px; border-radius: 8px; cursor: pointer; border: 1px solid transparent; }
.rail-suite:hover { background: rgba(255,255,255,.02); }
.rail-suite.active { background: var(--raised); border-color: var(--border-strong); }
.rail-suite > b { font-size: 14.5px; }
.rail-n { color: var(--faint); font-size: 11.5px; margin-left: 6px; }
.rail-suite-tasks { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 7px; }
.rail-task {
  background: none; border: 1px solid var(--border); border-radius: 5px;
  color: var(--muted); font-family: var(--font-mono); font-size: 11px;
  padding: 3px 8px; cursor: pointer;
}
.rail-task:hover { color: var(--text); }
.rail-task.active { color: var(--accent); border-color: var(--accent); background: var(--accent-dim); }

.rail-group { border-top: 1px solid var(--border); margin-top: 8px; padding-top: 8px; }
.rail-group-head {
  display: flex; justify-content: space-between; align-items: baseline;
  font-size: 12px; text-transform: uppercase; letter-spacing: .08em;
  color: var(--text); padding: 8px 10px 6px;
  position: sticky; top: -8px; background: var(--surface); z-index: 2;
}
.rail-sub { font-size: 11px; color: var(--faint); text-transform: uppercase; letter-spacing: .08em; padding: 8px 10px 3px; }
.rail-item {
  display: flex; align-items: center; gap: 9px;
  font-size: 13.5px; color: var(--muted); padding: 4px 10px;
  cursor: pointer; border-radius: 6px;
}
.rail-item:hover { background: rgba(255,255,255,.025); color: var(--text); }
.rail-item input { accent-color: var(--accent); width: 14px; height: 14px; flex: none; }
.rail-item .rail-n { margin-left: auto; }
.rail-empty { opacity: .45; }
.rail-emptystate { padding: 18px 12px; color: var(--faint); font-size: 13px; }
.rail-emptystate a, .rk-empty a { color: var(--accent); }

.rk-empty {
  padding: 60px 30px; text-align: center; color: var(--faint);
  border: 1px dashed var(--border-strong); border-radius: var(--radius); font-size: 14px;
}

.rk-panel {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px 24px 16px; min-width: 0;
}
.bench-ref {
  font-size: 12px; color: var(--blue);
  border: 1px solid rgba(111,168,255,.3); background: rgba(111,168,255,.07);
  padding: 5px 12px; border-radius: 6px;
}
.bench-tags { max-width: 44%; }

.rk-toolbar {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap;
  gap: 10px; margin-bottom: 16px; font-size: 13px;
}
.view-toggle { display: flex; gap: 4px; }
.vt-btn {
  background: none; border: 1px solid var(--border-strong); color: var(--muted);
  font-family: var(--font-mono); font-size: 12.5px; padding: 6px 13px; cursor: pointer;
}
.vt-btn:first-child { border-radius: 6px 0 0 6px; }
.vt-btn:last-child { border-radius: 0 6px 6px 0; }
.vt-btn:not(:first-child) { margin-left: -1px; }
.vt-btn.active { color: var(--accent); border-color: var(--accent); background: var(--accent-dim); z-index: 1; }
.rk-actions { display: flex; gap: 6px; }
.tool-btn {
  background: none; border: 1px solid var(--border-strong); border-radius: 6px;
  color: var(--muted); font-family: var(--font-mono); font-size: 12px;
  padding: 6px 12px; cursor: pointer;
}
.tool-btn:hover { color: var(--text); border-color: var(--text); }
.rk-filter-btn { display: none; }

.rk-table th:first-child, .rk-table td:first-child { width: 30px; }
.rk-table thead th { position: sticky; top: 0; background: var(--surface); z-index: 3; }
.rk-table .m-name { position: sticky; left: 0; background: var(--surface); }
.rk-table tr:hover .m-name { background: #141922; }
.cmp-box { accent-color: var(--accent); width: 14px; height: 14px; cursor: pointer; }

.cmp-panel { margin-top: 18px; border: 1px solid var(--border-strong); border-radius: var(--radius); padding: 16px; background: var(--raised); }
.cmp-head { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--muted); margin-bottom: 12px; }

/* coverage extras */
.cov-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 40px; }
.cov-panel {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px;
}
.cov-panel h3 { font-size: 18px; margin-bottom: 6px; }
.cov-sub { color: var(--muted); font-size: 13.5px; margin-bottom: 18px; }
.cov-bar-row { display: grid; grid-template-columns: 190px 1fr auto; gap: 12px; align-items: center; margin-bottom: 10px; }
.cov-bar-label { font-size: 12.5px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cov-bar-n { font-size: 12.5px; color: var(--text); }
.cov-panel .bar-track { height: 14px; }
.cov-panel .bar-fill { background: var(--accent); }

.pt-zero {
  background: rgba(255,255,255,.025) !important;
  color: rgba(255,255,255,.14);
}
.pt-zero:hover { border-color: var(--border-strong); transform: scale(1.05); }
.pt-zero-key { display: inline-flex; align-items: center; gap: 7px; margin-left: 20px; }
.pt-zero-swatch { width: 12px; height: 12px; border-radius: 3px; background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1); display: inline-block; }

/* row-item as link */
a.row-item { color: inherit; }
a.row-item:hover h3 { color: var(--accent); }

/* ============ responsive — rankings app ============ */
@media (max-width: 1020px) {
  .rk-layout { grid-template-columns: 1fr; }
  .rk-filter-btn { display: inline-block; }
  .rk-rail {
    position: fixed; top: 0; left: 0; bottom: 0; z-index: 300;
    width: min(320px, 88vw); max-height: none; border-radius: 0;
    transform: translateX(-105%); transition: transform .25s ease;
    box-shadow: 20px 0 60px rgba(0,0,0,.5);
  }
  .rk-rail.open { transform: none; }
  .rail-scroll { flex: 1; }
  .cov-grid { grid-template-columns: 1fr; }
  .kv-row { grid-template-columns: 1fr; gap: 4px; }
  .score-head { flex-direction: column; }
}

@media (max-width: 720px) {
  .page { padding-top: 40px; }
  .synth-banner { font-size: 11.5px; text-align: left; }
  .cov-bar-row { grid-template-columns: 120px 1fr auto; }
  .rk-panel { padding: 18px 14px; }
  .surface-tabs { font-size: 12px; }
  .surface-tab { padding: 7px 12px; font-size: 12.5px; }
}

/* ============================================================
   v3.1 — wide rankings layout, gap fixes, drawers
   ============================================================ */
.container-wide { max-width: 1440px; margin: 0 auto; padding: 0 24px; }
.page { padding-top: 44px; }
.hero { padding-bottom: 24px; }

/* 3-column rankings: suites | table | facets */
.rk-layout { display: grid; grid-template-columns: 256px minmax(0, 1fr) 256px; gap: 20px; align-items: start; }
.rk-facets { top: 100px; }
.rk-toolbar-note { color: var(--faint); font-size: 12.5px; }
.rk-toolbar { margin-bottom: 12px; }

@media (max-width: 1250px) {
  .rk-layout { grid-template-columns: 256px minmax(0, 1fr); }
  .rk-filter-btn { display: inline-block; }
  .rk-facets {
    position: fixed; top: 0; right: 0; left: auto; bottom: 0; z-index: 300;
    width: min(320px, 88vw); max-height: none; border-radius: 0;
    transform: translateX(105%); transition: transform .25s ease;
    box-shadow: -20px 0 60px rgba(0,0,0,.5);
  }
  .rk-facets.open { transform: none; }
}

@media (max-width: 1020px) {
  .rk-layout { grid-template-columns: 1fr; }
  #rkSuites {
    position: static; max-height: none; border-radius: var(--radius);
  }
  #rkSuites .rail-scroll {
    display: flex; gap: 10px; overflow-x: auto; padding: 10px;
  }
  #rkSuites .rail-group { border: none; margin: 0; padding: 0; display: flex; gap: 10px; flex: none; }
  #rkSuites .rail-group-head { display: none; }
  #rkSuites .rail-suite { min-width: 200px; flex: none; border: 1px solid var(--border); }
}