/* EgoSurgHands project page.
   Dark by default (the palette of the lab's readyplayermd slides); a light theme is one click away.
   Layout follows the EPIC-KITCHENS pattern: a live video wall behind the title, then connected bento cards. */

:root {
  color-scheme: dark;
  --bg: #0C111C; --bg-alt: #0A0F19; --surface: #131B2B; --surface-2: #101B33;
  --card: linear-gradient(180deg, rgba(27,43,77,.42), rgba(16,27,51,.55));
  --line: #26314A; --line-2: #35425F; --topbar: rgba(12,17,28,.8);
  --ink: #F4F1EA; --fg: #E7EBF2; --ink-2: #AEBBD3; --muted: #8F9BB3;
  --accent: #FF6B3D; --accent-2: #FF8A65; --accent-ink: #FFB39B; --accent-soft: rgba(255,107,61,.11);
  --teal: #4FD6C6; --purple: #B88CF5; --blue: #7FA6E8; --sand: #C2A57E;
  --hl: #50AAFF; --hr: #5AF078; /* hand colours of the aria_mps dashboard overlay: left blue, right green */
  --viz-ego: #4FD6C6; --viz-other: #7F8BA3; --band: rgba(174,187,211,.08); --grid: #1E2B47; --axis: #35425F;
  --btn-bg: #151D2D; --code-bg: #0A0F1A;
  --shadow: 0 30px 70px -40px rgba(0,0,0,.75);
  --display: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --sans: 'IBM Plex Sans', 'Helvetica Neue', Arial, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #F6F4EF; --bg-alt: #EEEBE4; --surface: #FFFFFF; --surface-2: #F3F0E9;
  --card: linear-gradient(180deg, #FFFFFF, #FBFAF7);
  --line: #E0DACF; --line-2: #CCC4B6; --topbar: rgba(246,244,239,.86);
  --ink: #121826; --fg: #1F2633; --ink-2: #3E4A60; --muted: #5E6A80;
  --accent: #E4572E; --accent-2: #CC4720; --accent-ink: #B13C15; --accent-soft: rgba(228,87,46,.09);
  --teal: #0F8577; --purple: #7547CC; --blue: #3567BE; --sand: #8A6A40;
  --viz-ego: #0F8577; --viz-other: #9AA3B2; --band: rgba(62,74,96,.07); --grid: #E6E1D7; --axis: #CDC5B6;
  --btn-bg: #FFFFFF;
  --shadow: 0 30px 70px -44px rgba(30,30,50,.4);
}
/* Video areas stay dark in both themes. */
.on-dark {
  --ink: #F4F1EA; --fg: #E7EBF2; --ink-2: #AEBBD3; --muted: #8F9BB3; --line: #26314A; --line-2: #3A4866;
  --accent: #FF6B3D; --accent-ink: #FFB39B; --accent-soft: rgba(255,107,61,.11); --btn-bg: rgba(16,27,51,.74);
  color: var(--fg);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 400 16px/1.62 var(--sans); }
img, video, canvas, svg { display: block; max-width: 100%; }
a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; border-radius: 6px; }
.wrap { width: min(1180px, calc(100% - 32px)); margin-inline: auto; }
.nw { white-space: nowrap; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------------- top bar ---------------- */
.topbar { position: sticky; top: 0; z-index: 60; background: var(--topbar); -webkit-backdrop-filter: saturate(1.3) blur(12px); backdrop-filter: saturate(1.3) blur(12px); border-bottom: 1px solid var(--line); }
.topbar-inner { display: flex; align-items: center; gap: 14px; height: 60px; }
.brand { flex: none; display: inline-flex; align-items: center; gap: 10px; font: 700 18.5px/1 var(--display); color: var(--ink); white-space: nowrap; letter-spacing: -.005em; }
.brand:hover { text-decoration: none; }
.brand img { width: 42px; height: auto; }
.nav { display: flex; gap: 2px; margin-left: auto; min-width: 0; overflow-x: auto; scrollbar-width: none; }
.nav::-webkit-scrollbar { display: none; }
.nav a { color: var(--ink-2); font-size: 14px; font-weight: 500; padding: 7px 10px; border-radius: 8px; white-space: nowrap; }
.nav a:hover { color: var(--ink); background: var(--accent-soft); text-decoration: none; }
.nav a.active { color: var(--ink); background: var(--accent-soft); }
.theme-btn { flex: none; width: 36px; height: 36px; border-radius: 10px; border: 1px solid var(--line); background: var(--btn-bg); color: var(--ink-2); display: grid; place-items: center; cursor: pointer; padding: 0; }
.theme-btn:hover { color: var(--ink); border-color: var(--line-2); }
.theme-btn svg { width: 18px; height: 18px; }
.theme-btn .moon { display: none; }
:root[data-theme="light"] .theme-btn .sun { display: none; }
:root[data-theme="light"] .theme-btn .moon { display: block; }
:root[data-theme="light"] .art { filter: brightness(0) opacity(.82); } /* the glasses drawing is light ink; darken it on light pages */
@media (max-width: 760px) { .hide-sm { display: none; } .brand img { width: 34px; } }
@media (max-width: 560px) { .brand .word { display: none; } .nav a { padding: 7px 8px; font-size: 13.5px; } }

/* ---------------- atoms ---------------- */
.pill { display: inline-flex; align-items: center; gap: 8px; width: fit-content; padding: 5px 12px; border-radius: 999px; font: 600 11.5px/1.25 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--accent-ink); background: rgba(255,107,61,.1); border: 1px solid rgba(255,107,61,.34); }
.pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); flex: none; animation: pulse 1.6s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(255,107,61,.7); } 70% { box-shadow: 0 0 0 7px rgba(255,107,61,0); } 100% { box-shadow: 0 0 0 0 rgba(255,107,61,0); } }
@keyframes ring { 0% { transform: scale(1); opacity: .9; } 85%, 100% { transform: scale(3.1); opacity: 0; } }
.live { display: inline-flex; align-items: center; gap: 8px; font: 500 12px/1.2 var(--mono); color: #F4F1EA; background: rgba(10,18,34,.74); border: 1px solid rgba(244,241,234,.16); border-radius: 999px; padding: 5px 11px; -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border-radius: 10px; font: 600 14.5px/1 var(--sans); color: var(--ink); background: var(--btn-bg); border: 1px solid var(--line-2); transition: border-color .2s, transform .2s, background .2s; }
.btn:hover { border-color: var(--ink-2); text-decoration: none; transform: translateY(-1px); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #17110D; }
.btn.primary:hover { background: var(--accent-2); border-color: var(--accent-2); }
.btn.soon { opacity: .62; cursor: default; }
.btn.soon:hover { transform: none; border-color: var(--line-2); }
.btn.sm { padding: 8px 13px; font-size: 13.5px; }
.btn svg { width: 16px; height: 16px; flex: none; }
.btn .emoji { font-size: 16px; line-height: 1; }
.tag { font: 600 10px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; padding: 2px 6px; border-radius: 5px; background: var(--accent-soft); color: var(--accent-ink); }
.badge { font: 600 10.5px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: #17110D; background: var(--accent-2); border-radius: 5px; padding: 3px 8px; }
:root[data-theme="light"] .badge { color: #fff; background: var(--accent); }
.vchip { font: 600 10.5px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); border: 1px solid var(--line); border-radius: 5px; padding: 2px 7px; }
.meta-row { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.kicker { font: 600 11.5px/1.3 var(--mono); letter-spacing: .13em; text-transform: uppercase; color: var(--accent-ink); }
.hud { font: 500 12px/1.5 var(--mono); padding: 7px 10px; border-radius: 8px; background: rgba(10,18,34,.76); border: 1px solid rgba(244,241,234,.13); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }
.hud:empty { display: none; }
.hud .l { color: var(--hl); } .hud .r { color: var(--hr); }

/* ---------------- hero: live video wall ---------------- */
.hero { position: relative; isolation: isolate; overflow: hidden; background: #05080F; min-height: clamp(660px, 94vh, 940px); display: grid; align-items: center; padding-block: 52px 76px; }
.hero .wall, .hero .shade { position: absolute; inset: 0; }
.hero .wall { z-index: -2; }
.hero .wall video { width: 100%; height: 100%; object-fit: cover; }
.hero .shade { z-index: -1; background:
  radial-gradient(ellipse 50% 60% at 50% 50%, rgba(10,18,34,.9), rgba(10,18,34,.7) 58%, rgba(10,18,34,.44) 100%),
  linear-gradient(180deg, rgba(12,17,28,.55), rgba(12,17,28,0) 16%, rgba(12,17,28,0) 74%, #0C111C 100%); }
.hero-inner { display: grid; justify-items: center; text-align: center; gap: 14px; }
/* venue badge: gradient text, glow, and a slowly turning gradient ring */
@property --ang { syntax: "<angle>"; inherits: false; initial-value: 0deg; }
.venue { position: relative; isolation: isolate; display: inline-flex; align-items: center; gap: 11px; padding: 13px 28px 13px 21px; border-radius: 999px; background: rgba(12,17,28,.74); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); box-shadow: 0 0 48px rgba(255,107,61,.5), 0 12px 34px -12px rgba(255,107,61,.7); }
.venue::before { content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit; padding: 2px; background: conic-gradient(from var(--ang), #FF6B3D, #FFB39B, #B88CF5, #4FD6C6, #FF6B3D); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; animation: venue-spin 6s linear infinite; }
@keyframes venue-spin { to { --ang: 360deg; } }
.venue .spark { width: 20px; height: 20px; fill: #FF8A65; filter: drop-shadow(0 0 6px rgba(255,107,61,.85)); animation: twinkle 2.6s ease-in-out infinite; flex: none; }
@keyframes twinkle { 0%, 100% { transform: scale(1) rotate(0deg); } 50% { transform: scale(.72) rotate(45deg); } }
.venue-text { font: 700 clamp(18px, 2.3vw, 25px)/1.1 var(--sans); letter-spacing: .01em; background: linear-gradient(90deg, #FFE6DB, #FFB39B 45%, #FF8A65); -webkit-background-clip: text; background-clip: text; color: transparent; }
.title { font: 700 clamp(3.1rem, 10.5vw, 7.4rem)/.94 var(--display); letter-spacing: -.02em; color: var(--ink); margin: 8px 0 0; text-shadow: 0 8px 50px rgba(0,0,0,.5); }
.glasses { position: relative; width: min(500px, 82vw); margin: 0 auto 2px; }
.glasses img { width: 100%; height: auto; filter: drop-shadow(0 0 16px rgba(127,166,232,.28)); }
.cam { position: absolute; width: 14px; height: 14px; margin: -7px 0 0 -7px; border-radius: 50%; }
.cam::after { content: ""; position: absolute; inset: -2px; border-radius: 50%; border: 2px solid currentColor; animation: ring 2.4s ease-out infinite; }
.cam.rgb { width: 16px; height: 16px; margin: -8px 0 0 -8px; background: #FF6B3D; color: #FF6B3D; box-shadow: 0 0 18px 5px rgba(255,107,61,.55); }
.cam.slam { background: #4FD6C6; color: #4FD6C6; box-shadow: 0 0 14px 3px rgba(79,214,198,.45); }
.cam.slam::after { animation-delay: .9s; }
.subtitle { font: 500 clamp(1.08rem, 2.3vw, 1.45rem)/1.35 var(--sans); color: var(--ink); max-width: 36ch; margin: 0; text-wrap: balance; }
.authors { display: grid; justify-items: center; gap: 4px; font-size: 15.5px; color: var(--ink); margin-top: 6px; max-width: 1040px; }
.arow { display: flex; flex-wrap: wrap; justify-content: center; gap: 2px 18px; }
.authors sup { color: var(--accent-ink); font-weight: 600; margin-left: 1px; }
.affils { display: flex; flex-wrap: wrap; justify-content: center; gap: 2px 18px; font-size: 13px; color: var(--ink-2); }
.affils sup { color: var(--accent-ink); }
.actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 8px; }
.hero .live { margin-top: 8px; }
/* short laptop screens: keep the buttons above the fold */
@media (min-width: 700px) and (max-height: 820px) { .hero { padding-block: 32px 56px; } .title { font-size: clamp(3rem, 8vw, 5.6rem); } .glasses { width: min(380px, 60vw); } .hero-inner { gap: 10px; } }

/* ---------------- sections ---------------- */
section { padding-block: clamp(60px, 8vw, 100px); }
section.alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
.section-head { display: grid; gap: 10px; margin-bottom: 30px; max-width: 780px; }
.section-head.center { margin-inline: auto; text-align: center; justify-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font: 600 12px/1.2 var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--accent-ink); }
h2 { font: 700 clamp(1.75rem, 3.7vw, 2.6rem)/1.1 var(--display); letter-spacing: -.012em; color: var(--ink); margin: 0; text-wrap: balance; }
h3 { font: 700 1.22rem/1.25 var(--display); color: var(--ink); margin: 0; }
.lead { color: var(--ink-2); font-size: clamp(15.5px, 1.6vw, 17.5px); margin: 0; }
.note { color: var(--muted); font-size: 13px; margin: 0; }

/* overview */
.tldr { max-width: 880px; margin: 0 auto 30px; text-align: center; font-size: clamp(16.5px, 1.9vw, 19.5px); line-height: 1.55; color: var(--fg); }
.tldr b { font: 600 12px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--accent-ink); margin-right: 10px; vertical-align: 2px; }
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin-bottom: 70px; }
.stat { border: 1px solid var(--line); border-radius: 14px; padding: 16px 16px 14px; background: var(--card); display: grid; gap: 2px; align-content: start; }
.stat .v { font: 600 clamp(22px, 3vw, 31px)/1.1 var(--mono); color: var(--ink); font-variant-numeric: tabular-nums; }
.stat .l { font-weight: 600; color: var(--ink); font-size: 14px; }
.stat .s { color: var(--muted); font-size: 12.5px; line-height: 1.45; }
@media (max-width: 760px) { .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.abstract { max-width: 880px; margin: 0 auto; font-size: 16.5px; line-height: 1.72; color: var(--fg); }
.abstract p { margin: 0; text-align: justify; -webkit-hyphens: auto; hyphens: auto; }
@media (max-width: 640px) { .abstract p { text-align: left; } }

/* ---------------- release: EPIC-style connected cards ---------------- */
.ecosystem { border: 1px solid var(--line); border-radius: 22px; padding: 30px clamp(12px, 2.4vw, 28px) 24px; margin: 0; min-width: 0; }
.ecosystem legend { padding: 0 12px; font: 600 12px var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--accent-ink); }
.bento { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 14px; }
.span-12 { grid-column: span 12; } .span-7 { grid-column: span 7; } .span-5 { grid-column: span 5; } .span-6 { grid-column: span 6; }
@media (max-width: 900px) { .bento > * { grid-column: span 12; } }
.card { border: 1px solid var(--line); border-radius: 16px; background: var(--card); overflow: hidden; min-width: 0; position: relative; transition: border-color .25s, box-shadow .25s; }
.card:hover { border-color: rgba(255,138,101,.55); box-shadow: 0 0 0 1px rgba(255,138,101,.22), 0 18px 50px -24px rgba(255,107,61,.35); }
.card .pad { padding: clamp(16px, 2.2vw, 24px); display: grid; gap: 12px; align-content: start; min-width: 0; }
.card h3 { font-size: clamp(1.3rem, 2.2vw, 1.7rem); line-height: 1.12; }
.card p { margin: 0; color: var(--ink-2); font-size: 14.5px; }
.hcard { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
@media (max-width: 900px) { .hcard { grid-template-columns: minmax(0, 1fr); } }
.media { position: relative; min-height: 320px; background: #05080F; }
.media video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.media .live { position: absolute; top: 12px; left: 12px; }
.media .hud { position: absolute; left: 12px; bottom: 12px; }
.media .media-tag { position: absolute; right: 12px; top: 12px; font: 600 12.5px/1.3 var(--sans); color: #F4F1EA; text-shadow: 0 1px 10px rgba(0,0,0,.85); text-align: right; max-width: 60%; }
.mini-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
@media (max-width: 560px) { .mini-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.ms { border: 1px solid var(--line); border-radius: 10px; padding: 9px 11px; background: var(--surface-2); display: grid; gap: 1px; min-width: 0; }
.ms .v { font: 600 clamp(16px, 2vw, 20px)/1.15 var(--mono); color: var(--ink); font-variant-numeric: tabular-nums; }
.ms .k { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .07em; line-height: 1.3; }
.lb { display: grid; gap: 6px; }
.lb .row { display: grid; grid-template-columns: 20px minmax(0, 1fr) 58px; gap: 10px; align-items: center; font-size: 13.5px; }
.lb .rk { font: 600 12px var(--mono); color: var(--muted); text-align: right; }
.lb .bar { position: relative; height: 26px; border-radius: 6px; background: var(--surface-2); overflow: hidden; }
.lb .bar i { position: absolute; inset: 0 auto 0 0; border-radius: 6px; background: linear-gradient(90deg, rgba(127,139,163,.42), rgba(127,139,163,.2)); }
.lb .row.ego .bar i { background: linear-gradient(90deg, rgba(79,214,198,.6), rgba(79,214,198,.24)); }
:root[data-theme="light"] .lb .row.ego .bar i { background: linear-gradient(90deg, rgba(15,133,119,.42), rgba(15,133,119,.16)); }
.lb .bar span { position: absolute; left: 10px; top: 50%; transform: translateY(-50%); color: var(--ink); white-space: nowrap; font-weight: 500; }
.lb .bar em { font-style: normal; font: 600 10px var(--mono); color: var(--teal); margin-left: 6px; letter-spacing: .06em; }
.lb .val { font: 600 13px var(--mono); color: var(--ink); text-align: right; font-variant-numeric: tabular-nums; }
.card-link { font-weight: 600; font-size: 14px; }
.review { display: grid; gap: 8px; }
.review .seg-bar { display: flex; height: 14px; border-radius: 7px; overflow: hidden; gap: 2px; }
.review .seg-bar i { display: block; height: 100%; }
.review .legend-r { display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: 13px; color: var(--ink-2); }
.review .legend-r b { font: 600 13px var(--mono); color: var(--ink); }
.sw { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 6px; vertical-align: 0; }
.hw { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 16px; align-items: center; }
@media (max-width: 560px) { .hw { grid-template-columns: minmax(0, 1fr); } }
.hw img { width: 100%; height: auto; }

/* ---------------- live player ---------------- */
.player { display: grid; grid-template-columns: minmax(0, 1.8fr) minmax(0, 1fr); gap: 14px; }
@media (max-width: 920px) { .player { grid-template-columns: minmax(0, 1fr); } }
.screen { position: relative; aspect-ratio: 16 / 10; border-radius: 18px; overflow: hidden; background: #05080F; border: 1px solid var(--line); box-shadow: var(--shadow); }
.screen video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.screen .live { position: absolute; top: 14px; left: 14px; }
.screen .hud { position: absolute; top: 14px; right: 14px; text-align: right; }
.screen .cap { position: absolute; left: 16px; bottom: 14px; right: 16px; font: 700 clamp(1rem, 2.2vw, 1.45rem)/1.2 var(--display); color: #F4F1EA; text-shadow: 0 2px 16px rgba(0,0,0,.8); }
@media (max-width: 640px) { .screen { aspect-ratio: 1 / 1; } .screen .hud { top: auto; right: auto; left: 12px; bottom: 50px; text-align: left; font-size: 10.5px; } }
.side { border: 1px solid var(--line); border-radius: 18px; background: var(--card); padding: 18px; display: grid; gap: 12px; grid-template-rows: auto minmax(210px, 1fr) auto auto; min-width: 0; }
.side h3 { font-size: 1.3rem; }
.side canvas { width: 100%; height: 100%; min-height: 210px; border-radius: 12px; background: radial-gradient(ellipse at 50% 40%, rgba(27,43,77,.55), rgba(10,15,26,.2) 70%); }
:root[data-theme="light"] .side canvas { background: radial-gradient(ellipse at 50% 40%, rgba(53,103,190,.08), rgba(255,255,255,0) 70%); }
.hand-key { display: flex; gap: 16px; font-size: 13px; color: var(--ink-2); }
.hand-key i { display: inline-block; width: 18px; height: 3px; border-radius: 2px; margin-right: 7px; vertical-align: 3px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.chip-btn { border: 1px solid var(--line); background: var(--surface); color: var(--ink-2); border-radius: 999px; padding: 7px 13px; font: 500 13.5px/1.2 var(--sans); cursor: pointer; display: inline-flex; align-items: center; gap: 8px; }
.chip-btn:hover { border-color: var(--line-2); color: var(--ink); }
.chip-btn[aria-pressed="true"] { border-color: var(--accent-2); color: var(--ink); background: var(--accent-soft); }
.gdot { width: 10px; height: 10px; border-radius: 50%; flex: none; box-shadow: inset 0 0 0 1px rgba(0,0,0,.25); }

/* ---------------- shared content blocks ---------------- */
.figure-card { margin: 0 0 22px; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; background: var(--surface); }
.figure-card img { width: 100%; height: auto; cursor: zoom-in; }
.figure-card.paper img { background: #FFFFFF; }
:root:not([data-theme="light"]) .figure-card.paper img { filter: brightness(.95); }
.figure-card figcaption { padding: 14px 18px; font-size: 14px; color: var(--ink-2); border-top: 1px solid var(--line); }
.figure-card figcaption b { color: var(--ink); }
.grid-2 { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; margin-bottom: 22px; }
@media (max-width: 860px) { .grid-2 { grid-template-columns: minmax(0, 1fr); } }
.panel { border: 1px solid var(--line); border-radius: 16px; background: var(--card); padding: clamp(16px, 2.4vw, 26px); min-width: 0; }
.panel h3 { margin-bottom: 14px; }
.features { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.features li { display: grid; grid-template-columns: 38px minmax(0, 1fr); gap: 12px; align-items: start; }
.features .ic { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent-ink); }
.features .ic svg { width: 19px; height: 19px; }
.features b { display: block; color: var(--ink); font-weight: 600; }
.features span { color: var(--ink-2); font-size: 14.5px; }
.subhead { font: 600 11.5px/1.3 var(--mono); letter-spacing: .13em; text-transform: uppercase; color: var(--muted); margin: 18px 0 10px; }
.subhead:first-child { margin-top: 0; }
.chips.static { margin-top: 0; }
.chip { border: 1px solid var(--line); border-radius: 999px; padding: 5px 12px; font-size: 13.5px; color: var(--ink-2); background: var(--surface); }
.kv { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 6px 16px; margin: 0; font-size: 14.5px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; color: var(--fg); }
.split-cards { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 10px; }
.split-card { border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; background: var(--surface-2); }
.split-card .n { font: 600 22px/1.15 var(--mono); color: var(--ink); }
.split-card .t { font-weight: 600; color: var(--ink); font-size: 14px; }
.split-card .d { color: var(--muted); font-size: 12.5px; }
pre.code { margin: 0; background: var(--code-bg); color: #DCE3EF; border: 1px solid #26314A; border-radius: 14px; padding: 16px 18px; overflow-x: auto; font: 13.5px/1.65 var(--mono); }
pre.code .k { color: #FF8A65; } pre.code .s { color: #4FD6C6; } pre.code .c { color: #8F9BB3; }
:root[data-theme="light"] pre.code { background: #141B29; }

/* benchmark */
.chart-card { border: 1px solid var(--line); border-radius: 18px; background: var(--card); padding: clamp(16px, 2.4vw, 26px); margin-bottom: 22px; }
.chart-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 14px; align-items: flex-start; margin-bottom: 10px; }
.chart-title { font: 700 1.25rem/1.2 var(--display); color: var(--ink); }
.chart-sub { color: var(--muted); font-size: 13.5px; margin-top: 3px; }
.controls { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 10px; padding: 3px; background: var(--surface-2); }
.seg button { border: 0; background: transparent; color: var(--ink-2); font: 600 13px var(--sans); padding: 7px 11px; border-radius: 7px; cursor: pointer; }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--bg); }
.switch { display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--ink-2); cursor: pointer; user-select: none; }
.switch input { accent-color: var(--accent); width: 16px; height: 16px; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 13px; color: var(--ink-2); margin: 4px 0 12px; }
.legend .k { display: inline-flex; align-items: center; gap: 7px; }
.legend .sw { width: 11px; height: 11px; border-radius: 50%; margin: 0; }
.legend .sw.fill { background: var(--ink-2); }
.legend .sw.ring { border: 2px solid var(--ink-2); background: transparent; }
.legend .sep { width: 1px; height: 14px; background: var(--line); }
#forest { width: 100%; }
#forest svg { overflow: visible; }
#forest .row:focus { outline: none; }
.chart-note, .table-note { color: var(--muted); font-size: 13px; margin: 10px 0 0; }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-bottom: 26px; }
@media (max-width: 900px) { .cards { grid-template-columns: minmax(0, 1fr); } }
.cards .card { padding: clamp(16px, 2.2vw, 22px); display: grid; gap: 10px; align-content: start; }
.cards .card h3 { font-size: 1.15rem; }
.cards .icon { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent-ink); }
.cards .icon svg { width: 19px; height: 19px; }
.cards .num { font: 600 clamp(26px, 3.4vw, 34px)/1.05 var(--mono); color: var(--ink); }
.cards .num small { font-size: .5em; color: var(--muted); font-weight: 500; }
.table-title { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 14px; margin: 8px 0 12px; }
.table-title span { color: var(--muted); font-size: 13px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
table.results { width: 100%; border-collapse: collapse; font-size: 14px; font-variant-numeric: tabular-nums; }
.results th, .results td { padding: 10px 12px; text-align: right; border-bottom: 1px solid var(--line); white-space: nowrap; }
.results tr:last-child td { border-bottom: 0; }
.results th:first-child, .results td:first-child { text-align: left; }
.results thead th { font-weight: 600; color: var(--ink-2); background: var(--surface-2); font-size: 13px; }
.results tr.grp td { font: 600 11px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); background: var(--bg-alt); text-align: left; padding-block: 7px; }
.results td { color: var(--fg); }
.results .jrn { color: var(--muted); }
.results td.best { font-weight: 700; color: var(--ink); }
.results td.best.jrn { color: var(--ink); }
.results.lowo .jrn { font-weight: 400; font-size: 12px; }
.pair { display: inline-flex; gap: 6px; align-items: baseline; }
.pair .a { color: var(--muted); } .pair .sl { color: var(--muted); font-size: 12px; } .pair .b { color: var(--ink); font-weight: 600; }
.results td.flag .b { color: var(--accent-ink); }
.mdot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--viz-other); margin-right: 8px; vertical-align: 1px; }
.mdot.ego { background: var(--viz-ego); }
.callout { border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: 12px; background: var(--surface); padding: 14px 18px; margin-top: 18px; }
.callout p { margin: 0; color: var(--ink-2); font-size: 14.5px; }
.callout b { color: var(--ink); }
.media-2 { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; }
@media (max-width: 860px) { .media-2 { grid-template-columns: minmax(0, 1fr); } }
.limits { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; max-width: 860px; }
.limits li { border: 1px solid var(--line); border-radius: 12px; background: var(--surface); padding: 12px 16px 12px 40px; position: relative; color: var(--ink-2); }
.limits li::before { content: ""; position: absolute; left: 17px; top: 21px; width: 8px; height: 8px; border-radius: 2px; background: var(--accent); transform: rotate(45deg); }

/* aria */
.aria-grid { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr); gap: 22px; align-items: center; }
@media (max-width: 920px) { .aria-grid { grid-template-columns: minmax(0, 1fr); } }
.diagram { position: relative; }
.diagram img { width: 100%; height: auto; }
:root:not([data-theme="light"]) .diagram img { filter: invert(1) hue-rotate(180deg) brightness(.96) contrast(1.05); mix-blend-mode: screen; }
:root[data-theme="light"] .diagram img { mix-blend-mode: multiply; }
.hot { position: absolute; z-index: 2; width: 18px; height: 18px; margin: -9px 0 0 -9px; border-radius: 50%; border: 2px solid var(--bg); cursor: pointer; padding: 0; }
.hot::after { content: ""; position: absolute; inset: -2px; border-radius: 50%; border: 2px solid currentColor; animation: ring 2.2s ease-out infinite; }
.hot.rgb { background: #FF6B3D; color: #FF6B3D; width: 22px; height: 22px; margin: -11px 0 0 -11px; }
.hot.slam { background: #4FD6C6; color: #4FD6C6; }
@media (max-width: 640px) { .hot { width: 12px; height: 12px; margin: -6px 0 0 -6px; border-width: 1.5px; } .hot.rgb { width: 15px; height: 15px; margin: -7.5px 0 0 -7.5px; } }
.tip { position: absolute; z-index: 3; transform: translate(-50%, calc(-100% - 16px)); background: rgba(10,18,34,.94); color: #AEBBD3; border: 1px solid #26314A; border-radius: 10px; padding: 8px 11px; font-size: 12.5px; width: max-content; max-width: 240px; pointer-events: none; opacity: 0; transition: opacity .2s; }
.tip b { display: block; color: #F4F1EA; font: 600 12px var(--mono); letter-spacing: .04em; }
.tip.show { opacity: 1; }
.sensors { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.sensors li { display: grid; grid-template-columns: 14px minmax(0, 1fr); gap: 12px; align-items: start; }
.sensors .dot { width: 12px; height: 12px; border-radius: 50%; margin-top: 6px; }
.sensors b { color: var(--ink); display: block; }
.sensors span { color: var(--ink-2); font-size: 14.5px; }
.credit { color: var(--muted); font-size: 12px; margin: 10px 0 0; }

/* faq */
.faq { display: grid; gap: 10px; max-width: 880px; }
.faq details { border: 1px solid var(--line); border-radius: 14px; background: var(--surface); padding: 0 18px; }
.faq summary { cursor: pointer; padding: 15px 0; font-weight: 600; color: var(--ink); list-style: none; display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font: 500 22px/1 var(--mono); color: var(--accent-ink); transition: transform .2s; flex: none; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 0 0 16px; color: var(--ink-2); }

/* resources */
.res { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
@media (max-width: 900px) { .res { grid-template-columns: minmax(0, 1fr); } }
.res .card { padding: 20px; display: grid; gap: 10px; align-content: start; color: inherit; }
.res a.card:hover { text-decoration: none; }
.res .top { display: flex; justify-content: space-between; align-items: center; color: var(--ink); }
.res .top svg { width: 22px; height: 22px; }
.res .top .emoji { font-size: 22px; }
.res .url { font: 500 12.5px var(--mono); color: var(--accent-ink); overflow-wrap: anywhere; }
.checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; color: var(--ink-2); font-size: 14.5px; }
.checklist .todo { color: var(--accent-ink); margin-right: 8px; }

/* citation */
.bib { position: relative; }
.copy-btn { position: absolute; top: 10px; right: 10px; display: inline-flex; align-items: center; gap: 6px; border: 1px solid #35425F; background: #151D2D; color: #E7EBF2; border-radius: 8px; padding: 6px 10px; font: 600 12.5px var(--sans); cursor: pointer; }
.copy-btn svg { width: 14px; height: 14px; }
.copy-btn:hover { border-color: #AEBBD3; }

/* footer */
footer { border-top: 1px solid var(--line); padding-block: 34px 56px; color: var(--muted); font-size: 13.5px; }
footer p { margin: 0 0 8px; max-width: 900px; }

/* chart tooltip and lightbox */
.tooltip { position: fixed; z-index: 80; pointer-events: none; opacity: 0; transition: opacity .12s; background: var(--surface); border: 1px solid var(--line-2); border-radius: 10px; padding: 9px 11px; box-shadow: var(--shadow); font-size: 13px; color: var(--fg); }
.tooltip.show { opacity: 1; }
.tt-name { font-weight: 700; color: var(--ink); margin-bottom: 5px; }
.tt-row { display: grid; grid-template-columns: 12px auto auto auto; gap: 7px; align-items: center; white-space: nowrap; }
.tt-key { width: 10px; height: 10px; border-radius: 50%; }
.tt-key.ring { border: 2px solid; background: transparent; }
.tt-val { font: 600 13px var(--mono); color: var(--ink); }
.tt-lab { color: var(--ink-2); }
.tt-ci { color: var(--muted); font-size: 12px; }
.lightbox { position: fixed; inset: 0; z-index: 90; background: rgba(5,8,15,.9); display: none; place-items: center; padding: 24px; cursor: zoom-out; }
.lightbox.open { display: grid; }
.lightbox img { max-width: 100%; max-height: 100%; border-radius: 10px; background: #fff; }

/* reveal */
.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .pulse, .cam::after, .hot::after, .venue::before, .venue .spark { animation: none; }
}