:root {
  --bg: #05060a;
  --fg: #eef0ff;
  --muted: #9aa0c3;
  --dim: #5d6286;
  --line: rgba(190, 200, 255, 0.14);
  --glass: rgba(12, 14, 26, 0.55);
  --glass-strong: rgba(10, 12, 22, 0.82);
  --accent: #9d8cff;
  --progress: 0;
  --display: 'Space Grotesk', 'Noto Sans KR', system-ui, sans-serif;
  --body: 'Noto Sans KR', 'Space Grotesk', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --gutter: clamp(16px, 4vw, 56px);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 400 16px/1.7 var(--body);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
ol, ul { list-style: none; margin: 0; padding: 0; }
.mono { font-family: var(--mono); letter-spacing: 0; }
::selection { background: var(--accent); color: #000; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* ---------- 캔버스 · 배경 레이어 ---------- */
canvas.gl { position: fixed; inset: 0; width: 100vw; height: 100vh; z-index: 0; display: block; opacity: 0; transition: opacity 1.4s ease; }
.gl-ready canvas.gl { opacity: 1; }
.grain {
  position: fixed; inset: -50%; z-index: 1; pointer-events: none; opacity: 0.06;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 1.2s steps(6) infinite;
}
@keyframes grain { 0%,100% { transform: translate(0,0); } 20% { transform: translate(-3%,2%); } 40% { transform: translate(2%,-3%); } 60% { transform: translate(-2%,-1%); } 80% { transform: translate(3%,3%); } }

/* WebGL 실패 시 정적 배경 */
.no-webgl canvas.gl { display: none; }
.no-webgl body {
  background:
    radial-gradient(60vmax 60vmax at 75% 30%, color-mix(in srgb, var(--accent) 35%, transparent), transparent 60%),
    radial-gradient(50vmax 50vmax at 15% 80%, rgba(58, 134, 255, 0.25), transparent 60%),
    var(--bg);
  background-attachment: fixed;
  transition: background 0.8s;
}

main, .topbar, .rail, .hud { position: relative; z-index: 2; }

/* ---------- 상단 바 ---------- */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 18px var(--gutter);
  background: linear-gradient(to bottom, rgba(5, 6, 10, 0.75), transparent);
}
.topbar::after {
  content: ''; position: absolute; left: 0; bottom: 0; height: 1px; width: calc(var(--progress) * 100%);
  background: linear-gradient(90deg, transparent, var(--accent)); box-shadow: 0 0 12px var(--accent);
}
.brand { display: flex; align-items: center; gap: 10px; font: 600 15px/1 var(--display); letter-spacing: -0.01em; }
.brand-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 14px 3px var(--accent); transition: background 0.6s, box-shadow 0.6s; }
.links { display: flex; gap: clamp(12px, 2.4vw, 28px); font: 500 14px/1 var(--display); }
.links a { color: var(--muted); transition: color 0.2s; position: relative; padding: 6px 0; }
.links a:hover { color: var(--fg); }

/* ---------- 오른쪽 장면 레일 ---------- */
.rail { position: fixed; right: calc(var(--gutter) * 0.5); top: 50%; transform: translateY(-50%); z-index: 9; }
.rail ol { display: flex; flex-direction: column; gap: 10px; }
.rail a { display: flex; align-items: center; justify-content: flex-end; gap: 10px; height: 14px; }
.rail a::after { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--dim); transition: all 0.4s var(--ease); }
.rail a span { font: 500 11px/1 var(--mono); color: var(--muted); opacity: 0; transform: translateX(6px); transition: all 0.3s var(--ease); white-space: nowrap; }
.rail a:hover span, .rail a[aria-current] span { opacity: 1; transform: none; }
.rail a[aria-current]::after { width: 22px; border-radius: 3px; background: var(--c, var(--accent)); box-shadow: 0 0 10px var(--c, var(--accent)); }
.rail a[aria-current] span { color: var(--fg); }

/* ---------- 좌하단 HUD ---------- */
.hud {
  position: fixed; left: var(--gutter); bottom: 18px; z-index: 9;
  display: flex; align-items: baseline; gap: 6px;
  font: 500 11px/1 var(--mono); color: var(--muted); letter-spacing: 0.06em; pointer-events: none;
}
.hud-idx { color: var(--fg); font-size: 22px; font-family: var(--display); font-weight: 600; }
.hud-name { margin-left: 14px; color: var(--fg); }
.hud-meta { margin-left: 10px; color: var(--accent); transition: color 0.6s; }

/* ---------- 공통 ---------- */
.scene { position: relative; min-height: 100vh; min-height: 100svh; padding: 120px var(--gutter) 100px; display: flex; align-items: center; }
.wrap { width: 100%; max-width: 1240px; margin: 0 auto; }
.eyebrow { margin: 0 0 18px; font: 500 12px/1.4 var(--mono); color: var(--muted); letter-spacing: 0.08em; text-transform: uppercase; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.eyebrow b { color: var(--fg); font-weight: 500; }
.swatch { width: 10px; height: 10px; border-radius: 2px; background: var(--c); box-shadow: 0 0 12px var(--c); }
.display {
  font: 700 clamp(44px, 8.4vw, 132px)/0.95 var(--display); letter-spacing: -0.045em; margin: 0;
  word-break: keep-all;
}
.display-sm { font: 700 clamp(36px, 5.6vw, 84px)/1 var(--display); letter-spacing: -0.04em; margin: 0 0 16px; word-break: keep-all; }
.lead { color: var(--muted); max-width: 52ch; margin: 0; font-size: 17px; word-break: keep-all; }
.section-head { margin-bottom: 48px; }

.btn {
  display: inline-flex; align-items: center; gap: 10px; cursor: pointer;
  padding: 14px 22px; border-radius: 999px; border: 1px solid var(--line);
  font: 500 15px/1 var(--display); background: rgba(255, 255, 255, 0.03); backdrop-filter: blur(8px);
  transition: transform 0.3s var(--ease), background 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.btn:hover { transform: translateY(-2px); border-color: rgba(255, 255, 255, 0.4); }
.btn.primary { background: var(--fg); color: #05060a; border-color: var(--fg); }
.btn.primary:hover { box-shadow: 0 0 0 4px color-mix(in srgb, var(--c, var(--accent)) 40%, transparent), 0 10px 40px -10px var(--c, var(--accent)); }
.btn.sm { padding: 10px 16px; font-size: 14px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* reveal */
.scene .reveal, .scene .section-head, .scene .card, .scene .plist li, .scene .panel, .scene .contact-title, .scene .numbers, .scene .contact-links {
  opacity: 0; transform: translateY(40px); transition: opacity 1s var(--ease), transform 1.2s var(--ease);
}
.scene.in .section-head, .scene.in .card, .scene.in .plist li, .scene.in .panel, .scene.in .contact-title, .scene.in .numbers, .scene.in .contact-links { opacity: 1; transform: none; }
.scene.in .plist li { transition-delay: calc(var(--d, 0) * 60ms + 150ms); }
.plist li:nth-child(1) { --d: 1; } .plist li:nth-child(2) { --d: 2; } .plist li:nth-child(3) { --d: 3; } .plist li:nth-child(4) { --d: 4; }
.plist li:nth-child(5) { --d: 5; } .plist li:nth-child(6) { --d: 6; } .plist li:nth-child(7) { --d: 7; } .plist li:nth-child(8) { --d: 8; }
.scene.in .panel:nth-child(2) { transition-delay: 0.15s; }

/* ---------- 히어로 ---------- */
.hero { padding-top: 140px; }
.hero-inner { max-width: 820px; position: relative; }
.hero .display .line { display: block; overflow: hidden; padding-bottom: 0.06em; }
.hero .display .line > span { display: inline-block; transform: translateY(110%); animation: rise 1.3s var(--ease) forwards; animation-delay: calc(var(--i) * 0.12s + 0.2s); }
.hero .display .line:last-child > span {
  background: linear-gradient(100deg, #fff 0%, #b7a9ff 25%, #ff9a6b 50%, #6fe3d3 75%, #fff 100%);
  background-size: 200% 100%; -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: rise 1.3s var(--ease) forwards, sheen 8s linear infinite;
  animation-delay: calc(var(--i) * 0.12s + 0.2s), 0s;
}
@keyframes rise { to { transform: none; } }
@keyframes sheen { to { background-position: -200% 0; } }
.intro { margin: 32px 0 36px; max-width: 46ch; color: var(--muted); font-size: 17px; opacity: 0; animation: fade 1.2s 0.8s forwards; word-break: keep-all; }
.intro p { margin: 0; }
.intro b { color: var(--fg); font-weight: 500; }
.hero .actions { opacity: 0; animation: fade 1.2s 1s forwards; }
.hero .eyebrow { opacity: 0; animation: fade 1s 0.1s forwards; }
@keyframes fade { to { opacity: 1; } }
.scroll-cue { position: absolute; left: 50%; bottom: 28px; transform: translateX(-50%); margin: 0; font: 500 10px/1 var(--mono); letter-spacing: 0.3em; color: var(--muted); display: flex; flex-direction: column; align-items: center; gap: 12px; }
.scroll-cue span { width: 1px; height: 46px; background: linear-gradient(var(--fg), transparent); animation: drip 2s var(--ease) infinite; transform-origin: top; }
@keyframes drip { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }

/* ---------- 궤도 목록 ---------- */
.index .wrap { max-width: 1240px; }
.index .section-head, .plist { max-width: 640px; }
.plist { border-top: 1px solid var(--line); background: linear-gradient(90deg, rgba(5, 6, 10, 0.72), rgba(5, 6, 10, 0.35)); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.plist li { border-bottom: 1px solid var(--line); }
.plist a {
  position: relative; display: grid; grid-template-columns: 34px 1fr auto 24px; grid-template-areas: 'n t s a' 'n k c a';
  column-gap: 16px; row-gap: 2px; align-items: baseline; padding: 16px 8px; overflow: hidden;
}
.plist a::before {
  content: ''; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(90deg, color-mix(in srgb, var(--c) 28%, transparent), transparent 80%);
  transform: scaleX(0); transform-origin: left; transition: transform 0.5s var(--ease);
}
.plist a:hover::before, .plist a:focus-visible::before { transform: none; }
.pl-num { grid-area: n; color: var(--dim); font-size: 12px; }
.pl-title { grid-area: t; font: 600 clamp(20px, 2.4vw, 28px)/1.15 var(--display); letter-spacing: -0.02em; transition: transform 0.4s var(--ease), color 0.3s; }
.plist a:hover .pl-title { transform: translateX(8px); color: var(--c); }
.pl-kicker { grid-area: k; color: var(--muted); font-size: 14px; }
.pl-cat { grid-area: c; color: var(--dim); font-size: 11px; text-align: right; }
.pl-star { grid-area: s; color: var(--muted); font-size: 12px; text-align: right; }
.pl-arrow { grid-area: a; align-self: center; color: var(--c); opacity: 0; transform: translateX(-8px); transition: all 0.4s var(--ease); }
.plist a:hover .pl-arrow { opacity: 1; transform: none; }

/* ---------- 프로젝트 장 ---------- */
.chapter { min-height: 125vh; min-height: 125svh; }
.chapter .card {
  position: relative; z-index: 1; width: min(560px, 100%); padding: clamp(24px, 3vw, 40px);
  background: linear-gradient(160deg, rgba(14, 16, 30, 0.72), rgba(8, 9, 16, 0.5));
  border: 1px solid var(--line); border-radius: 22px; backdrop-filter: blur(14px) saturate(1.3); -webkit-backdrop-filter: blur(14px) saturate(1.3);
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.8), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}
.chapter .card::before {
  content: ''; position: absolute; inset: -1px; border-radius: inherit; padding: 1px; pointer-events: none;
  background: linear-gradient(140deg, var(--c), transparent 40%, transparent 70%, color-mix(in srgb, var(--c) 50%, transparent));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude;
}
.chapter.alt { justify-content: flex-end; }
.chapter.alt .card { margin-right: 40px; }
.ch-title { font: 700 clamp(40px, 5.6vw, 76px)/1 var(--display); letter-spacing: -0.04em; margin: 0 0 10px; word-break: keep-all; }
.ch-kicker { margin: 0 0 18px; font-size: 18px; color: var(--fg); font-weight: 500; }
.ch-kicker .mono { font-size: 12px; color: var(--muted); font-weight: 400; }
.ch-desc { color: var(--muted); margin: 0 0 20px; word-break: keep-all; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.tags li { font: 500 12px/1 var(--mono); padding: 7px 10px; border-radius: 6px; border: 1px solid color-mix(in srgb, var(--c, #fff) 45%, transparent); color: color-mix(in srgb, var(--c, #fff) 60%, #fff); background: color-mix(in srgb, var(--c, #fff) 10%, transparent); }
.ch-meta { display: flex; gap: 18px; font-size: 12px; color: var(--muted); margin-bottom: 10px; }
.mini-bar { display: flex; height: 4px; border-radius: 4px; overflow: hidden; gap: 2px; margin-bottom: 26px; }
.mini-bar i { display: block; height: 100%; }
.mini-bar.big { height: 8px; margin-bottom: 12px; }
.ch-ghost {
  position: absolute; right: var(--gutter); bottom: 6vh; z-index: 0; pointer-events: none;
  font: 700 clamp(120px, 22vw, 340px)/0.8 var(--display); letter-spacing: -0.06em;
  color: transparent; -webkit-text-stroke: 1px color-mix(in srgb, var(--c) 40%, transparent); opacity: 0.6;
}
.chapter.alt .ch-ghost { right: auto; left: var(--gutter); }

/* ---------- 스택 ---------- */
.stack { align-items: flex-start; }
.stack-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 20px; }
.panel { padding: clamp(22px, 3vw, 34px); border-radius: 20px; }
.glass { background: var(--glass-strong); border: 1px solid var(--line); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
.panel h3 { margin: 0 0 6px; font: 600 20px/1.2 var(--display); }
.panel .sub { color: var(--muted); margin: 0 0 20px; font-size: 14px; }
.panel .sub b { color: var(--fg); font-weight: 500; }
.langbar { display: flex; height: 16px; border-radius: 8px; overflow: hidden; gap: 3px; margin-bottom: 14px; }
.langbar i { display: block; height: 100%; width: 0; transition: width 1.6s var(--ease); }
.stack.in .langbar i { width: var(--w); }
.legend { display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 13px; color: var(--muted); margin-bottom: 22px; }
.legend li { display: flex; align-items: center; gap: 6px; }
.legend b { color: var(--fg); font-weight: 400; font-size: 12px; }
.dot { width: 8px; height: 8px; border-radius: 50%; }
.repo-bars li { display: grid; grid-template-columns: 110px 1fr 64px; gap: 12px; align-items: center; font-size: 13px; padding: 5px 0; }
.repo-bars .bar { display: flex; height: 6px; border-radius: 3px; overflow: hidden; gap: 1px; }
.repo-bars .bar i { display: block; }
.repo-bars .kb { color: var(--muted); font-size: 11px; text-align: right; }
.fw { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 18px; }
.fw li { display: flex; gap: 12px; align-items: center; padding: 12px; border-radius: 12px; border: 1px solid var(--line); background: rgba(255, 255, 255, 0.02); transition: border-color 0.3s, transform 0.3s var(--ease); }
.fw li:hover { border-color: rgba(255, 255, 255, 0.35); transform: translateY(-2px); }
.fw .mark { flex: none; width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; font-size: 13px; background: linear-gradient(135deg, rgba(157, 140, 255, 0.35), rgba(34, 184, 168, 0.25)); }
.fw b { display: block; font: 600 14px/1.3 var(--display); }
.fw small { color: var(--muted); font-size: 12px; }
.marquee { margin-top: 44px; overflow: hidden; border-block: 1px solid var(--line); padding: 18px 0; -webkit-mask: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); mask: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee-track { display: flex; width: max-content; gap: 28px; align-items: center; font: 600 clamp(24px, 3.4vw, 44px)/1 var(--display); letter-spacing: -0.02em; animation: marquee 26s linear infinite; }
.marquee-track .dup { display: contents; }
.marquee-track i { font-style: normal; color: var(--accent); font-size: 0.6em; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- 연락 ---------- */
.contact { flex-direction: column; justify-content: center; align-items: stretch; padding-bottom: 40px; }
.contact .wrap { flex: 1; display: flex; flex-direction: column; justify-content: center; }
.contact-title { margin-bottom: 30px; }
.about { max-width: 52ch; color: var(--muted); font-size: 18px; margin: 0 0 32px; word-break: keep-all; }
.note { max-width: 52ch; color: var(--muted); margin: 0 0 28px; word-break: keep-all; }
.numbers { display: flex; gap: clamp(24px, 5vw, 72px); margin: 0 0 32px; }
.numbers dt { font-size: 13px; color: var(--muted); }
.numbers dd { margin: 4px 0 0; font: 600 clamp(32px, 4vw, 56px)/1 var(--display); letter-spacing: -0.03em; }
.contact-links { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; max-width: 860px; }
.contact-link {
  display: grid; grid-template-columns: 1fr auto; padding: 18px 20px; border-radius: 16px; border: 1px solid var(--line);
  background: var(--glass); backdrop-filter: blur(10px); transition: border-color 0.3s, transform 0.3s var(--ease), background 0.3s;
}
.contact-link .mono { font-size: 11px; color: var(--muted); grid-column: 1; }
.contact-link b { font: 600 17px/1.3 var(--display); grid-column: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.contact-link span[aria-hidden] { grid-column: 2; grid-row: 1 / 3; align-self: center; transition: transform 0.3s var(--ease); }
.contact-link:hover { border-color: var(--accent); transform: translateY(-3px); background: color-mix(in srgb, var(--accent) 12%, var(--glass)); }
.contact-link:hover span[aria-hidden] { transform: translate(3px, -3px); }
.footer { text-align: center; color: var(--dim); font: 400 12px/1 var(--mono); padding-top: 40px; }

/* ---------- 구체 라벨 · 커서 ---------- */
.orb-label {
  position: fixed; left: 0; top: 0; z-index: 20; pointer-events: none; opacity: 0;
  margin: -70px 0 0 18px; padding: 10px 14px; border-radius: 12px; min-width: 160px;
  background: var(--glass-strong); border: 1px solid color-mix(in srgb, var(--c) 60%, transparent); backdrop-filter: blur(10px);
  transition: opacity 0.25s;
}
.orb-label.on { opacity: 1; }
.orb-label b { display: block; font: 600 16px/1.2 var(--display); color: var(--c); }
.orb-label span { font-size: 12px; color: var(--muted); }
.orb-hover, .orb-hover body { cursor: pointer; }
.cursor { display: none; }
.has-cursor .cursor {
  display: block; position: fixed; left: -18px; top: -18px; width: 36px; height: 36px; z-index: 30; pointer-events: none;
  border: 1px solid rgba(255, 255, 255, 0.5); border-radius: 50%; mix-blend-mode: difference;
  transition: width 0.3s var(--ease), height 0.3s var(--ease), left 0.3s var(--ease), top 0.3s var(--ease), background 0.3s;
}
.has-cursor .cursor.hot, .orb-hover .cursor { width: 64px; height: 64px; left: -32px; top: -32px; background: rgba(255, 255, 255, 0.9); }

/* ---------- 상세 오버레이 ---------- */
.detail {
  width: min(680px, calc(100vw - 32px)); max-height: calc(100vh - 48px); padding: 0; border-radius: 24px;
  border: 1px solid color-mix(in srgb, var(--c) 50%, var(--line)); color: var(--fg);
  background: radial-gradient(120% 70% at 100% 0%, color-mix(in srgb, var(--c) 30%, transparent), transparent 60%), rgba(9, 10, 18, 0.92);
  backdrop-filter: blur(20px); box-shadow: 0 40px 120px -20px color-mix(in srgb, var(--c) 45%, transparent);
}
.detail[open] { animation: pop 0.6s var(--ease); }
.detail::backdrop { background: rgba(3, 4, 8, 0.6); backdrop-filter: blur(6px); }
@keyframes pop { from { opacity: 0; transform: translateY(30px) scale(0.96); } }
.detail-body { padding: clamp(24px, 4vw, 44px); }
.detail-close { position: absolute; right: 16px; top: 16px; width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line); background: rgba(255, 255, 255, 0.04); cursor: pointer; }
.detail-close:hover { background: rgba(255, 255, 255, 0.12); }
.detail h2 { font: 700 clamp(36px, 6vw, 60px)/1 var(--display); letter-spacing: -0.04em; margin: 0 0 6px; }
.d-kicker { margin: 0 0 24px; color: var(--muted); font-size: 17px; }
.d-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border-radius: 14px; overflow: hidden; margin: 0 0 22px; }
.d-stats div { background: rgba(9, 10, 18, 0.9); padding: 12px 14px; }
.d-stats dt { font-size: 11px; color: var(--muted); }
.d-stats dd { margin: 2px 0 0; font-size: 14px; }
.d-desc { color: #cdd1ee; margin: 0 0 18px; word-break: keep-all; }

/* ---------- 반응형 ---------- */
@media (max-width: 900px) {
  .stack-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  body { font-size: 15px; }
  .links a:not([data-github]):nth-child(n+3) { display: none; }
  .rail { display: none; }
  .hud { bottom: 12px; }
  .hud-meta { display: none; }
  .scene { padding: 96px 16px 72px; }
  .hero { align-items: flex-end; padding-bottom: 96px; }
  .intro { margin: 22px 0 26px; font-size: 15px; }
  .chapter { min-height: 140svh; align-items: flex-end; }
  .chapter.alt { justify-content: flex-start; }
  .chapter.alt .card { margin-right: 0; }
  .chapter .card { background: linear-gradient(160deg, rgba(14, 16, 30, 0.86), rgba(8, 9, 16, 0.8)); }
  .ch-ghost { top: 90px; bottom: auto; font-size: 120px; }
  .chapter.alt .ch-ghost { left: auto; right: 16px; }
  .plist a { grid-template-columns: 28px 1fr auto; grid-template-areas: 'n t s' 'n k k' 'n c c'; padding: 14px 4px; }
  .pl-cat { text-align: left; }
  .pl-arrow { display: none; }
  .index .section-head { margin-bottom: 28px; }
  .index { padding-top: 46vh; }
  .index .plist { background: rgba(5, 6, 10, 0.6); backdrop-filter: blur(8px); border-radius: 12px; }
  .fw { grid-template-columns: 1fr; }
  .repo-bars li { grid-template-columns: 84px 1fr 54px; gap: 8px; }
  .contact { padding-top: 40vh; }
  .contact-links { grid-template-columns: 1fr; }
  .numbers { gap: 20px; }
  .d-stats { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- 모션 줄이기 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001s !important; animation-iteration-count: 1 !important; transition-duration: 0.001s !important; }
  .grain { display: none; }
  .marquee-track { animation: none; flex-wrap: wrap; width: auto; }
  .marquee-track .dup { display: none; }
  .scene .section-head, .scene .card, .scene .plist li, .scene .panel, .scene .contact-title, .scene .numbers, .scene .contact-links { opacity: 1; transform: none; }
}
@media (max-width: 760px) {
  .topbar { background: rgba(5, 6, 10, 0.78); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); padding-block: 14px; }
  .hud { left: 12px; padding: 7px 12px; border-radius: 999px; background: rgba(5, 6, 10, 0.7); backdrop-filter: blur(8px); }
}

/* ---------- AI Next 편집 훅 (추가분) ---------- */
.contact-form { display: grid; gap: 10px; max-width: 520px; margin-top: 28px; }
.contact-form input, .contact-form textarea {
  font: inherit; font-size: 16px; width: 100%; padding: 12px 14px; color: var(--fg);
  background: var(--glass); border: 1px solid var(--line); border-radius: 12px;
}
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--accent); outline: none; }
.contact-form .hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.contact-form button { justify-self: start; cursor: pointer; }
.form-status { margin: 0; min-height: 1.4em; font-size: 13px; color: var(--muted); }

[hidden] { display: none !important; }