/* ==========================================================================
   Tokens
   ========================================================================== */
:root {
  --bg: #fbfbfc;
  --bg-elev: #ffffff;
  --surface: #ffffff;
  --surface-2: #f3f4f7;
  --surface-3: #e9ebf0;
  --border: rgba(15, 23, 42, .08);
  --border-strong: rgba(15, 23, 42, .16);
  --text: #0b1220;
  --text-2: #475467;
  --text-3: #7d8797;
  --accent: #0d9488;
  --accent-2: #6d5dfc;
  --accent-ink: #ffffff;
  --accent-soft: rgba(13, 148, 136, .10);
  --grad: linear-gradient(100deg, #0d9488 0%, #4f7cf7 55%, #6d5dfc 100%);
  --grid-dot: rgba(15, 23, 42, .08);
  --shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 12px 32px -12px rgba(16, 24, 40, .12);
  --shadow-lg: 0 24px 64px -24px rgba(16, 24, 40, .25);
  --glow-a: rgba(13, 148, 136, .16);
  --glow-b: rgba(109, 93, 252, .12);

  --font: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui, "Segoe UI", Roboto, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --radius: 18px;
  --radius-sm: 10px;
  --container: 1180px;
  --nav-h: 64px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

[data-theme="dark"] {
  --bg: #07090d;
  --bg-elev: #0b0e14;
  --surface: #0d1118;
  --surface-2: #131822;
  --surface-3: #1a2130;
  --border: rgba(255, 255, 255, .07);
  --border-strong: rgba(255, 255, 255, .14);
  --text: #e9edf3;
  --text-2: #a5afbf;
  --text-3: #6f7a8c;
  --accent: #2dd4bf;
  --accent-2: #8b7bff;
  --accent-ink: #04221f;
  --accent-soft: rgba(45, 212, 191, .12);
  --grad: linear-gradient(100deg, #5eead4 0%, #7dd3fc 50%, #a78bfa 100%);
  --grid-dot: rgba(255, 255, 255, .06);
  --shadow: 0 1px 0 rgba(255, 255, 255, .03) inset, 0 12px 32px -16px rgba(0, 0, 0, .6);
  --shadow-lg: 0 24px 80px -24px rgba(0, 0, 0, .8);
  --glow-a: rgba(45, 212, 191, .14);
  --glow-b: rgba(139, 123, 255, .12);
  color-scheme: dark;
}

/* ==========================================================================
   Base
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background-color .3s var(--ease), color .3s var(--ease);
}
html[lang="ko"] body { word-break: keep-all; line-height: 1.7; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }
h1, h2, h3, h4 { margin: 0; font-weight: 700; letter-spacing: -0.025em; line-height: 1.12; text-wrap: balance; }
p { margin: 0; }
ol, ul { margin: 0; padding: 0; list-style: none; }
.mono { font-family: var(--mono); font-size: .8em; letter-spacing: 0; }
::selection { background: var(--accent); color: var(--accent-ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--accent); color: var(--accent-ink); padding: 8px 14px; border-radius: 8px; }
.skip:focus { left: 8px; }

.progress {
  position: fixed; inset: 0 0 auto 0; height: 2px; z-index: 60;
  background: var(--grad); transform-origin: 0 50%; transform: scaleX(0);
}

/* ==========================================================================
   Buttons, chips, cards
   ========================================================================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 40px; padding: 0 16px; border-radius: 999px;
  font-weight: 600; font-size: 14.5px; white-space: nowrap;
  transition: transform .2s var(--ease), background-color .2s, border-color .2s, box-shadow .2s, color .2s;
}
.btn:active { transform: translateY(1px) scale(.99); }
.btn-sm { height: 34px; padding: 0 14px; font-size: 13.5px; }
.btn-lg { height: 48px; padding: 0 22px; font-size: 15.5px; }
.btn-primary { background: var(--text); color: var(--bg); }
.btn-primary:hover { box-shadow: 0 0 0 4px var(--accent-soft), 0 8px 24px -8px var(--accent); }
.btn-ghost { border: 1px solid var(--border-strong); background: color-mix(in srgb, var(--surface) 60%, transparent); }
.btn-ghost:hover { border-color: var(--text-3); background: var(--surface-2); }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  height: 32px; padding: 0 14px; border-radius: 999px; font-size: 13.5px; font-weight: 500;
  border: 1px solid var(--border-strong); color: var(--text-2);
  transition: background-color .2s, color .2s, border-color .2s;
}
.chip:hover { color: var(--text); border-color: var(--text-3); }
.chip[aria-pressed="true"] { background: var(--text); color: var(--bg); border-color: var(--text); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card-label {
  font-family: var(--mono); font-size: 12px; letter-spacing: .06em; text-transform: uppercase;
  color: var(--text-3); margin: 0 0 14px;
}

/* ==========================================================================
   Nav
   ========================================================================== */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50; height: var(--nav-h);
  transition: background-color .3s, border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom-color: var(--border);
}
.nav-inner { height: 100%; display: flex; align-items: center; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -0.02em; }
.brand-mark { display: inline-flex; color: var(--text); }
.nav-links { display: flex; gap: 4px; margin-left: 8px; }
.nav-links a {
  position: relative; padding: 8px 12px; border-radius: 999px; font-size: 14px; color: var(--text-2);
  transition: color .2s, background-color .2s;
}
.nav-links a:hover { color: var(--text); background: var(--surface-2); }
.nav-links a.active { color: var(--text); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 50%; bottom: 2px; width: 4px; height: 4px; margin-left: -2px;
  border-radius: 50%; background: var(--accent);
}
.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.icon-btn {
  height: 36px; min-width: 36px; padding: 0 9px; border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center; gap: 2px;
  color: var(--text-2); border: 1px solid transparent; transition: color .2s, background-color .2s, border-color .2s;
}
.icon-btn:hover { color: var(--text); background: var(--surface-2); border-color: var(--border); }
.lang-btn { font-size: 12.5px; font-weight: 600; font-family: var(--mono); }
.lang-btn [data-l] { opacity: .45; transition: opacity .2s; }
.lang-btn .sep { opacity: .3; margin: 0 1px; }
html[lang="en"] .lang-btn [data-l="en"], html[lang="ko"] .lang-btn [data-l="ko"] { opacity: 1; color: var(--text); }
.i-moon { display: none; }
[data-theme="dark"] .i-sun { display: none; }
[data-theme="dark"] .i-moon { display: block; }
.kbd-btn {
  height: 34px; padding: 0 8px 0 11px; border-radius: 999px; border: 1px solid var(--border-strong);
  display: inline-flex; align-items: center; gap: 8px; color: var(--text-3); transition: color .2s, border-color .2s;
}
.kbd-btn:hover { color: var(--text); border-color: var(--text-3); }
kbd {
  font-family: var(--mono); font-size: 11px; padding: 2px 6px; border-radius: 6px;
  background: var(--surface-2); border: 1px solid var(--border); color: var(--text-2);
}
.menu-btn { display: none; }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { position: relative; padding: calc(var(--nav-h) + 56px) 0 16px; overflow: hidden; }
.hero-glow {
  position: absolute; inset: -20% -10% auto -10%; height: 900px; pointer-events: none;
  background:
    radial-gradient(40% 50% at 78% 30%, var(--glow-a), transparent 70%),
    radial-gradient(35% 45% at 15% 70%, var(--glow-b), transparent 70%);
}
.hero-grid-bg {
  position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(var(--grid-dot) 1px, transparent 1px);
  background-size: 28px 28px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 35%, #000 30%, transparent 80%);
          mask-image: radial-gradient(ellipse 80% 70% at 50% 35%, #000 30%, transparent 80%);
}
.hero-inner {
  position: relative; display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  gap: 56px; align-items: center; min-height: min(640px, calc(100svh - var(--nav-h) - 180px));
}
.pill {
  display: inline-flex; align-items: center; gap: 10px; padding: 6px 12px 6px 10px; margin-bottom: 26px;
  border-radius: 999px; font-size: 13.5px; color: var(--text-2);
  border: 1px solid var(--border-strong); background: color-mix(in srgb, var(--surface) 70%, transparent);
  transition: border-color .2s, color .2s;
}
.pill:hover { border-color: var(--accent); color: var(--text); }
.pill b { color: var(--text); font-weight: 700; }
.pill-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); animation: pulse 2.4s infinite; }
@keyframes pulse { 0%, 100% { box-shadow: 0 0 0 0 var(--accent-soft); } 50% { box-shadow: 0 0 0 6px transparent; } }

.hero h1 { font-size: clamp(2.4rem, 4.5vw, 3.8rem); letter-spacing: -0.04em; line-height: 1.02; font-weight: 750; }
html[lang="ko"] .hero h1 { letter-spacing: -0.035em; line-height: 1.12; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { margin-top: 24px; font-size: clamp(1.05rem, 1.5vw, 1.2rem); color: var(--text-2); max-width: 36em; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.cta-row.center { justify-content: center; }
.hero-meta { margin-top: 28px; font-size: 13.5px; color: var(--text-3); }

.hero-visual { position: relative; }
.scan {
  position: relative; aspect-ratio: 1 / 1.04; width: 100%; max-width: 540px; margin-left: auto;
  border-radius: 28px; overflow: hidden; cursor: crosshair; touch-action: pan-y;
  background:
    radial-gradient(70% 60% at 50% 45%, color-mix(in srgb, var(--accent) 7%, transparent), transparent 70%),
    var(--bg-elev);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
}
.scan canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.corner { position: absolute; width: 18px; height: 18px; border: 1.5px solid var(--text-3); opacity: .6; pointer-events: none; }
.corner.tl { top: 16px; left: 16px; border-right: 0; border-bottom: 0; border-top-left-radius: 6px; }
.corner.tr { top: 16px; right: 16px; border-left: 0; border-bottom: 0; border-top-right-radius: 6px; }
.corner.bl { bottom: 16px; left: 16px; border-right: 0; border-top: 0; border-bottom-left-radius: 6px; }
.corner.br { bottom: 16px; right: 16px; border-left: 0; border-top: 0; border-bottom-right-radius: 6px; }
.hud { position: absolute; font-size: 11.5px; color: var(--text-3); pointer-events: none; }
.hud b { color: var(--text); font-weight: 500; }
.hud-tl { top: 22px; left: 44px; }
.hud-tr { top: 20px; right: 44px; display: flex; flex-direction: column; align-items: flex-end; gap: 2px; }
.hud-tr .dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; margin-right: 6px; vertical-align: 1px; }
.dot.dim { background: var(--text-3); }
.dot.acc { background: var(--accent); }
.hud-bl {
  left: 50%; bottom: 22px; transform: translateX(-50%); white-space: nowrap; font-size: 12px;
  padding: 6px 12px; border-radius: 999px; background: color-mix(in srgb, var(--bg) 70%, transparent);
  border: 1px solid var(--border); backdrop-filter: blur(6px); transition: opacity .6s;
}
.scan.touched .hud-bl { opacity: 0; }

/* venue marquee */
.logos { position: relative; padding: 72px 0 24px; }
.logos-title { text-align: center; font-size: 13px; color: var(--text-3); margin-bottom: 22px; }
.marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee-track { display: flex; width: max-content; gap: 56px; animation: marquee 48s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track span { font-size: 19px; font-weight: 650; letter-spacing: -0.02em; color: var(--text-3); white-space: nowrap; transition: color .2s; }
.marquee-track span:hover { color: var(--text); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ==========================================================================
   Sections
   ========================================================================== */
.section { padding: 112px 0; position: relative; }
.section + .section { border-top: 1px solid var(--border); }
.sec-head { max-width: 760px; margin-bottom: 48px; }
.sec-head-row { max-width: none; display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 14px;
  font-family: var(--mono); font-size: 12.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--accent);
}
.eyebrow::before { content: ""; width: 16px; height: 1.5px; background: currentColor; }
.sec-head h2 { font-size: clamp(2rem, 3.8vw, 3rem); letter-spacing: -0.035em; }
.sec-sub { margin-top: 16px; font-size: 1.075rem; color: var(--text-2); max-width: 44em; }

/* reveal on scroll */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.js .reveal.in { opacity: 1; transform: none; }

/* ==========================================================================
   Platform
   ========================================================================== */
.roadmap { margin-top: 28px; padding: 26px 28px; display: grid; grid-template-columns: auto 1fr; gap: 10px 36px; align-items: center; }
.roadmap .card-label { grid-column: 1 / -1; margin: 0; }
.loop { display: flex; align-items: center; gap: 0; }
.loop li { display: flex; align-items: center; }
.loop li span {
  padding: 8px 14px; border-radius: 999px; font-size: 14px; font-weight: 600; border: 1px solid var(--border-strong);
}
.loop li.on span { background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 50%, transparent); }
.loop li.next span { border-style: dashed; color: var(--text-2); }
.loop li + li::before { content: ""; width: 22px; height: 1.5px; background: var(--border-strong); }
.roadmap-text { color: var(--text-2); font-size: 15px; }
.roadmap-text b { color: var(--text); font-weight: 650; }

/* ==========================================================================
   Work — tabs, panels, viz
   ========================================================================== */
.tabs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; margin-bottom: 20px; padding: 6px; border-radius: 16px; background: var(--surface-2); border: 1px solid var(--border); }
.tabs [role="tab"] {
  text-align: left; padding: 14px 16px; border-radius: 11px; display: grid; grid-template-columns: auto 1fr; column-gap: 10px; row-gap: 3px; align-content: start;
  color: var(--text-2); transition: background-color .25s, color .25s, box-shadow .25s;
}
.tabs [role="tab"]:hover { color: var(--text); }
.tabs [role="tab"][aria-selected="true"] { background: var(--surface); color: var(--text); box-shadow: var(--shadow); }
.tab-n { grid-row: span 3; color: var(--text-3); padding-top: 2px; }
[aria-selected="true"] .tab-n { color: var(--accent); }
.tab-cap { font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--text-3); }
.tab-title { font-weight: 650; font-size: 15px; line-height: 1.3; color: var(--text); }
.tab-name { font-size: 12.5px; color: var(--text-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
[aria-selected="true"] .tab-name { color: var(--text-2); }

.panel { display: block; }
.panel-main { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: 32px; align-items: start; }
.dir-intro {
  display: grid; grid-template-columns: auto 1fr; gap: 2px 14px; align-items: start; margin-bottom: 22px;
  padding: 16px 18px; border-radius: 14px; background: var(--surface-2); border: 1px solid var(--border);
}
.dir-icon { grid-row: span 2; width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: var(--surface); border: 1px solid var(--border); color: var(--accent); }
.dir-body { font-size: 15px; color: var(--text); }
.dir-related { font-size: 13px; color: var(--text-3); }
.dir-related-k { font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: .06em; margin-right: 8px; }
.methods { display: grid; gap: 20px; align-content: start; }
.methods.two .method-img img { max-height: 400px; }
.method { margin: 0; }
.method-img {
  display: flex; justify-content: center; width: 100%; padding: 12px; border-radius: 14px; overflow: hidden;
  background: #fff; border: 1px solid var(--border); cursor: zoom-in; transition: box-shadow .2s, border-color .2s;
}
.method-img:hover { border-color: var(--border-strong); box-shadow: var(--shadow-lg); }
.method-img img { display: block; width: auto; max-width: 100%; height: auto; max-height: 540px; }
[data-theme="dark"] .method-img { background: #f4f5f7; }
.method figcaption { margin-top: 12px; font-size: 13.5px; line-height: 1.6; color: var(--text-2); max-width: 70em; }
.method-label { font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--accent); margin-right: 4px; }
.method-src { display: block; margin-top: 2px; font-size: 12px; color: var(--text-3); }

.lightbox { padding: 0; border: 0; background: transparent; max-width: 96vw; max-height: 94vh; overflow: visible; }
.lightbox::backdrop { background: rgba(3, 6, 10, .82); backdrop-filter: blur(4px); }
.lightbox img { display: block; max-width: 96vw; max-height: 94vh; width: auto; height: auto; border-radius: 12px; background: #fff; }
.lightbox-close { position: absolute; top: 10px; right: 10px; background: rgba(10, 14, 20, .75); color: #fff; border: 1px solid rgba(255, 255, 255, .2); }
.lightbox-close:hover { background: rgba(10, 14, 20, .9); color: #fff; }
.panel[hidden] { display: none; }
.panel.enter .dir-intro, .panel.enter .panel-copy, .panel.enter .methods { animation: panelIn .5s var(--ease) both; }
.panel.enter .methods { animation-delay: .06s; }
@keyframes panelIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.panel-copy { padding: 8px 8px 8px 4px; display: flex; flex-direction: column; }
.venue { color: var(--accent); margin-bottom: 12px; }
.panel-copy h3 { font-size: 1.65rem; letter-spacing: -0.03em; line-height: 1.2; }
.par { margin: 24px 0 0; display: flex; flex-direction: column; gap: 18px; }
.par div { display: grid; grid-template-columns: 88px 1fr; gap: 16px; }
.par dt { font-family: var(--mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-3); padding-top: 3px; }
.par dd { margin: 0; color: var(--text-2); font-size: 15px; line-height: 1.6; }
.par div:last-child dd { color: var(--text); font-weight: 500; }
.link-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }

/* ==========================================================================
   Open source
   ========================================================================== */
#ossFilters { margin-bottom: 20px; }
.repos { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.repo { padding: 22px; display: flex; flex-direction: column; gap: 10px; transition: border-color .25s, transform .25s var(--ease); }
.repo:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.repo[hidden] { display: none; }
.repo-top { display: flex; align-items: center; gap: 10px; }
.repo-icon { width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center; background: var(--surface-2); border: 1px solid var(--border); color: var(--text-2); flex: none; }
.repo-name { font-weight: 700; font-size: 16px; letter-spacing: -0.015em; }
.repo-name a:hover { color: var(--accent); }
.repo-kind { margin-left: auto; font-family: var(--mono); font-size: 10.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-3); }
.repo p { font-size: 14px; color: var(--text-2); line-height: 1.55; }
.repo-cmd { display: flex; align-items: center; gap: 8px; padding: 8px 8px 8px 12px; border-radius: 10px; background: var(--surface-2); border: 1px solid var(--border); }
.repo-cmd code { flex: 1; min-width: 0; font-family: var(--mono); font-size: 11.5px; color: var(--text-2); white-space: nowrap; overflow-x: auto; scrollbar-width: none; }
.repo-cmd code::-webkit-scrollbar { display: none; }
.repo-cmd button { font-size: 11.5px; font-weight: 600; padding: 4px 9px; border-radius: 7px; border: 1px solid var(--border-strong); flex: none; }
.repo-cmd button:hover { border-color: var(--text-3); }
.repo-meta { margin-top: auto; padding-top: 6px; display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px; font-size: 12.5px; color: var(--text-3); }
.repo-meta a { color: var(--text-2); }
.repo-meta a:hover { color: var(--accent); }
.lang-dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 6px; vertical-align: -1px; background: var(--text-3); }
.lang-dot.Python { background: #3572a5; } .lang-dot.TypeScript { background: #3178c6; } .lang-dot.JavaScript { background: #e5c33a; }
.stars, .dl { font-variant-numeric: tabular-nums; }

/* ==========================================================================
   Publications
   ========================================================================== */
.pub-tools { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 18px; }
.search { flex: 1 1 280px; max-width: 380px; display: flex; align-items: center; gap: 10px; height: 40px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--border-strong); color: var(--text-3); transition: border-color .2s; }
.search:focus-within { border-color: var(--accent); }
.search input { flex: 1; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--text); font: inherit; font-size: 14.5px; }
.search input::placeholder { color: var(--text-3); }
.search input::-webkit-search-cancel-button { filter: grayscale(1); }
.pubs { border-top: 1px solid var(--border); }
.pub { display: grid; grid-template-columns: 72px 1fr auto; gap: 20px; padding: 22px 4px; border-bottom: 1px solid var(--border); transition: background-color .2s; }
.pub:hover { background: color-mix(in srgb, var(--surface-2) 55%, transparent); }
.pub-year { font-family: var(--mono); font-size: 13px; color: var(--text-3); padding-top: 3px; }
.pub-title { font-size: 16.5px; font-weight: 650; letter-spacing: -0.015em; line-height: 1.4; }
.pub-title a { background-image: linear-gradient(currentColor, currentColor); background-size: 0 1px; background-repeat: no-repeat; background-position: 0 100%; transition: background-size .3s var(--ease); }
.pub-title a:hover { background-size: 100% 1px; }
.pub-authors { margin-top: 6px; font-size: 13.5px; color: var(--text-3); line-height: 1.5; }
.pub-authors b { color: var(--text); font-weight: 650; }
.pub-venue { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.tag { font-size: 12px; font-weight: 600; padding: 3px 9px; border-radius: 999px; border: 1px solid var(--border-strong); color: var(--text-2); }
.tag.venue-tag { color: var(--text); }
.tag.badge { border-color: color-mix(in srgb, var(--accent) 55%, transparent); background: var(--accent-soft); color: var(--text); }
.tag.axis { font-family: var(--mono); font-size: 10.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--text-3); border-color: var(--border); }
.pub-links { display: flex; gap: 6px; align-items: flex-start; }
.pub-links a { font-size: 12.5px; font-weight: 600; padding: 5px 10px; border-radius: 8px; border: 1px solid var(--border-strong); color: var(--text-2); transition: color .2s, border-color .2s; white-space: nowrap; }
.pub-links a:hover { color: var(--text); border-color: var(--text-3); }
.pubs-empty { padding: 32px 0; color: var(--text-3); text-align: center; }
mark { background: var(--accent-soft); color: inherit; border-radius: 3px; padding: 0 1px; }

/* ==========================================================================
   Recognition
   ========================================================================== */
.awards { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.award { padding: 22px; display: flex; flex-direction: column; gap: 10px; min-height: 168px; position: relative; overflow: hidden; transition: border-color .25s, transform .25s var(--ease); }
.award:hover { border-color: var(--border-strong); transform: translateY(-2px); }
.award-year { font-family: var(--mono); font-size: 12px; color: var(--accent); }
.award h3 { font-size: 17px; letter-spacing: -0.02em; line-height: 1.3; }
.award p { margin-top: auto; font-size: 13px; color: var(--text-3); }
.award-medal { position: absolute; right: -12px; top: -12px; width: 72px; height: 72px; border-radius: 50%; border: 1px solid var(--border); opacity: .7; }
.award-medal::after { content: ""; position: absolute; inset: 14px; border-radius: 50%; border: 1px dashed var(--border-strong); }
.press { margin-top: 16px; display: flex; align-items: center; gap: 16px; padding: 18px 22px; transition: border-color .25s; }
.press:hover { border-color: var(--accent); }
.press-tag { padding: 3px 9px; border-radius: 999px; background: var(--accent-soft); color: var(--text); font-size: 11px; text-transform: uppercase; letter-spacing: .06em; }
.press-text { font-size: 15px; color: var(--text-2); }
.press-arrow { margin-left: auto; color: var(--text-3); transition: transform .25s var(--ease), color .25s; }
.press:hover .press-arrow { transform: translate(2px, -2px); color: var(--accent); }

/* ==========================================================================
   Journey
   ========================================================================== */
.timeline { position: relative; max-width: 860px; }
.tl-rail { position: absolute; left: 87px; top: 8px; bottom: 8px; width: 2px; background: var(--border); border-radius: 2px; }
.tl-fill { position: absolute; inset: 0 0 auto 0; height: 0; background: var(--grad); border-radius: 2px; }
.tl-item { position: relative; display: grid; grid-template-columns: 64px 1fr; gap: 48px; padding: 14px 0 26px; }
.tl-year { font-family: var(--mono); font-size: 14px; font-weight: 500; color: var(--text-3); text-align: right; padding-top: 1px; transition: color .4s; }
.tl-item::before {
  content: ""; position: absolute; left: 82px; top: 20px; width: 12px; height: 12px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--border-strong); transition: border-color .4s, background-color .4s, box-shadow .4s;
}
.tl-item.lit::before { border-color: var(--accent); background: var(--accent); box-shadow: 0 0 0 5px var(--accent-soft); }
.tl-item.lit .tl-year { color: var(--text); }
.tl-item.next::before { border-style: dashed; background: var(--bg); }
.tl-item h3 { font-size: 18px; letter-spacing: -0.02em; }
.tl-item p { margin-top: 6px; color: var(--text-2); font-size: 15px; max-width: 40em; }
.tl-item.next h3 { color: var(--text-2); }

/* ==========================================================================
   About
   ========================================================================== */
.about { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 48px; align-items: start; max-width: 920px; }
.about-photo { margin-top: 44px; border-radius: 16px; overflow: hidden; border: 1px solid var(--border); background: var(--surface); }
.about-photo img { width: 100%; height: auto; }
.about-id { padding: 10px 12px; display: flex; flex-direction: column; gap: 0; border-top: 1px solid var(--border); }
.about-id strong { font-size: 14px; letter-spacing: -0.01em; }
.about-id .mono { color: var(--text-3); }
.about-copy .sec-head { margin-bottom: 24px; }
.about-body { font-size: 17px; color: var(--text-2); line-height: 1.75; margin-bottom: 40px; }
.principles { display: flex; flex-direction: column; gap: 4px; margin-bottom: 40px; }
.principles li { display: grid; grid-template-columns: 36px 1fr; gap: 12px; padding: 16px 0; border-top: 1px solid var(--border); }
.principles li:last-child { border-bottom: 1px solid var(--border); }
.principles .mono { color: var(--accent); padding-top: 3px; }
.principles strong { font-size: 16px; letter-spacing: -0.015em; }
.principles p { margin-top: 4px; font-size: 14.5px; color: var(--text-2); }
.stack { display: flex; flex-wrap: wrap; gap: 8px; }
.stack li { font-size: 13px; padding: 6px 12px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--border); color: var(--text-2); }

/* ==========================================================================
   Contact
   ========================================================================== */
.contact { border-top: 1px solid var(--border); }
.contact-card {
  position: relative; overflow: hidden; text-align: center; padding: 88px 24px; border-radius: 32px;
  background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow-lg);
}
.contact-glow {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(40% 70% at 20% 0%, var(--glow-a), transparent 70%),
    radial-gradient(40% 70% at 80% 100%, var(--glow-b), transparent 70%);
}
.contact-card > *:not(.contact-glow) { position: relative; }
.contact-card h2 { font-size: clamp(2.2rem, 4.6vw, 3.6rem); letter-spacing: -0.04em; }
.contact-card .sec-sub { margin: 18px auto 0; }
.socials { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 28px; margin-top: 36px; font-size: 14px; }
.socials a { color: var(--text-2); }
.socials a:hover { color: var(--text); }

/* footer */
.footer { padding: 32px 0 40px; font-size: 13px; color: var(--text-3); }
.footer-inner { display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }

/* ==========================================================================
   Command palette, toast
   ========================================================================== */
.cmdk { position: fixed; inset: 0; z-index: 90; display: flex; justify-content: center; align-items: flex-start; padding: 14vh 16px 16px; }
.cmdk[hidden] { display: none; }
.cmdk-backdrop { position: absolute; inset: 0; background: rgba(3, 6, 10, .55); backdrop-filter: blur(4px); animation: fadeIn .2s; }
.cmdk-dialog {
  position: relative; width: 100%; max-width: 580px; border-radius: 16px; overflow: hidden;
  background: var(--bg-elev); border: 1px solid var(--border-strong); box-shadow: var(--shadow-lg); animation: popIn .22s var(--ease);
}
@keyframes fadeIn { from { opacity: 0; } }
@keyframes popIn { from { opacity: 0; transform: translateY(-8px) scale(.98); } }
.cmdk-input { display: flex; align-items: center; gap: 12px; padding: 0 16px; height: 56px; border-bottom: 1px solid var(--border); color: var(--text-3); }
.cmdk-input input { flex: 1; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--text); font: inherit; font-size: 16px; }
.cmdk-list { max-height: min(420px, 56vh); overflow-y: auto; padding: 8px; }
.cmdk-group { padding: 10px 10px 6px; font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--text-3); }
.cmdk-item { display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 10px; font-size: 14.5px; cursor: pointer; color: var(--text-2); }
.cmdk-item[aria-selected="true"] { background: var(--surface-2); color: var(--text); }
.cmdk-item .hint { margin-left: auto; font-family: var(--mono); font-size: 11px; color: var(--text-3); }
.cmdk-empty { padding: 24px; text-align: center; color: var(--text-3); font-size: 14px; }

.toast {
  position: fixed; left: 50%; bottom: 28px; z-index: 95; transform: translate(-50%, 20px); opacity: 0;
  padding: 10px 16px; border-radius: 999px; background: var(--text); color: var(--bg); font-size: 14px; font-weight: 600;
  pointer-events: none; transition: opacity .25s, transform .25s var(--ease);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1080px) {
  .nav-links a { padding: 8px 9px; }
  .kbd-btn { display: none; }
  .awards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .repos { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .panel-main { grid-template-columns: minmax(0, 1fr); }
  .roadmap { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 900px) {
  .menu-btn { display: inline-flex; }
  .nav-cta { display: none; }
  .nav-links {
    position: fixed; top: var(--nav-h); left: 0; right: 0; flex-direction: column; gap: 2px; margin: 0; padding: 12px 16px 20px;
    background: var(--bg-elev); border-bottom: 1px solid var(--border); box-shadow: var(--shadow-lg);
    transform: translateY(-8px); opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s var(--ease);
  }
  .nav-links.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-links a { padding: 12px; font-size: 16px; border-radius: 10px; }
  .nav-links a.active::after { left: auto; right: 14px; top: 50%; bottom: auto; margin-top: -2px; }
  .hero-inner { grid-template-columns: minmax(0, 1fr); gap: 40px; min-height: 0; }
  .scan { max-width: 520px; margin: 0 auto; }
  .about { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .about-photo { margin-top: 0; max-width: 100px; }
  .tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .section { padding: 80px 0; }
  .hero { padding-top: calc(var(--nav-h) + 32px); }
  .brand-name { display: none; }
  .sec-head { margin-bottom: 32px; }
  .sec-head-row { flex-direction: column; align-items: flex-start; }
  .awards, .repos { grid-template-columns: minmax(0, 1fr); }
  .method-img { padding: 6px; }
  .dir-intro { padding: 14px; }
  .par div { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  #pubFilters { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; margin: 0 -16px; padding: 0 16px 4px; width: calc(100% + 32px); }
  #pubFilters::-webkit-scrollbar { display: none; }
  #pubFilters .chip { flex: none; }
  .search { max-width: none; }
  .pub { grid-template-columns: minmax(0, 1fr); gap: 8px; padding: 20px 0; }
  .pub-links { margin-top: 4px; }
  .tl-rail { left: 7px; }
  .tl-item { grid-template-columns: minmax(0, 1fr); gap: 4px; padding-left: 32px; }
  .tl-item::before { left: 2px; top: 18px; }
  .tl-year { text-align: left; }
  .loop { flex-wrap: wrap; row-gap: 8px; }
  .loop li span { padding: 7px 11px; font-size: 13px; }
  .loop li + li::before { width: 12px; }
  .contact-card { padding: 64px 18px; border-radius: 24px; }
  .hud-tl { left: 40px; }
  .hud-tr { right: 40px; }
  .hud-bl { font-size: 11px; white-space: normal; text-align: center; width: max-content; max-width: calc(100% - 48px); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .js .reveal { opacity: 1; transform: none; }
  .marquee-track { animation: none; flex-wrap: wrap; width: auto; justify-content: center; gap: 16px 40px; }
}

@media print {
  .nav, .progress, .hero-visual, .cmdk, .toast, .logos { display: none !important; }
  .js .reveal { opacity: 1; transform: none; }
  .panel[hidden] { display: grid !important; }
  body { background: #fff; color: #000; }
}