:root {
  --bg: #0a0704;
  --fg: #f5f5f7;
  --muted: #86868b;
  --line: rgba(255, 255, 255, 0.1);
  --a1: #ffb800;
  --a2: #ff7a1a;
  --a3: #ffe08a;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: "Inter", "Noto Sans KR", -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body:not(.loaded) { overflow: hidden; }
a { color: inherit; text-decoration: none; }
em { font-style: normal; background: linear-gradient(90deg, var(--a1), var(--a2)); -webkit-background-clip: text; background-clip: text; color: transparent; }

@media (hover: hover) and (pointer: fine) {
  body, a, button { cursor: none; }
}

/* ---------- Loader ---------- */
.loader {
  position: fixed; inset: 0; z-index: 1000; background: var(--bg);
  display: flex; flex-direction: column; justify-content: flex-end; padding: 5vw;
  transition: transform 1.1s var(--ease) .1s;
}
.loaded .loader { transform: translateY(-100%); }
.loader-count { font-size: clamp(5rem, 18vw, 16rem); font-weight: 800; letter-spacing: -0.06em; line-height: .9; }
.loader-bar { height: 2px; background: var(--line); margin-top: 2rem; overflow: hidden; }
.loader-bar span { display: block; height: 100%; width: var(--p, 0%); background: linear-gradient(90deg, var(--a1), var(--a2)); transition: width .2s; }

/* ---------- Cursor ---------- */
.cursor-dot, .cursor-ring {
  position: fixed; top: 0; left: 0; pointer-events: none; z-index: 999; border-radius: 50%;
}
.cursor-dot { width: 6px; height: 6px; background: #fff; margin: -3px 0 0 -3px; mix-blend-mode: difference; }
.cursor-ring {
  width: 40px; height: 40px; margin: -20px 0 0 -20px; border: 1px solid rgba(255,255,255,.5);
  display: grid; place-items: center;
  transition: width .4s var(--ease), height .4s var(--ease), margin .4s var(--ease), background .4s, border-color .4s;
  mix-blend-mode: difference;
}
.cursor-label { font-size: 13px; font-weight: 600; color: #000; opacity: 0; transition: opacity .3s; letter-spacing: .02em; }
.cursor-ring.hover { width: 64px; height: 64px; margin: -32px 0 0 -32px; background: rgba(255,255,255,.1); border-color: transparent; }
.cursor-ring.label { width: 96px; height: 96px; margin: -48px 0 0 -48px; background: #fff; border-color: #fff; mix-blend-mode: normal; }
.cursor-ring.label .cursor-label { opacity: 1; }
.cursor-ring.down { transform: scale(.8); }
@media (hover: none), (pointer: coarse) { .cursor-dot, .cursor-ring { display: none; } }

/* ---------- Background layers ---------- */
#bg { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.spotlight {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(600px circle at var(--x, 50%) var(--y, 50%), rgba(255, 184, 0, .13), transparent 60%);
}
.grain {
  position: fixed; inset: -50%; z-index: 2; pointer-events: none; opacity: .06;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain 1s steps(6) infinite;
}
@keyframes grain {
  0%,100% { transform: translate(0,0); } 20% { transform: translate(-5%,3%); }
  40% { transform: translate(4%,-6%); } 60% { transform: translate(-3%,5%); } 80% { transform: translate(6%,2%); }
}
main, .footer, .nav { position: relative; z-index: 3; }

/* ---------- Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.5rem 5vw; transition: transform .6s var(--ease);
  mix-blend-mode: difference;
}
.nav.hide { transform: translateY(-120%); }
.logo { font-size: 1.6rem; font-weight: 900; display: inline-block; }
.logo span { color: var(--a2); }
.nav nav { display: flex; gap: 2.5rem; }
.nav nav a { font-size: .95rem; font-weight: 500; display: inline-block; position: relative; }
.nav nav a::after { content: ""; position: absolute; left: 0; bottom: -4px; width: 100%; height: 1px; background: currentColor; transform: scaleX(0); transform-origin: right; transition: transform .5s var(--ease); }
.nav nav a:hover::after { transform: scaleX(1); transform-origin: left; }

/* ---------- Common ---------- */
.eyebrow { font-size: .85rem; letter-spacing: .25em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
.sticky { position: sticky; top: 0; height: 100vh; overflow: hidden; }
.fade-up { opacity: 0; transform: translateY(30px); transition: opacity 1.2s var(--ease) calc(var(--d, 0s) + 1s), transform 1.2s var(--ease) calc(var(--d, 0s) + 1s); }
.loaded .fade-up { opacity: 1; transform: none; }
.reveal { opacity: 0; transform: translateY(60px); transition: opacity 1.2s var(--ease) var(--d, 0s), transform 1.2s var(--ease) var(--d, 0s); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh; display: flex; flex-direction: column; justify-content: center; padding: 0 5vw;
}
.hero-title {
  font-size: clamp(4rem, 15vw, 15rem); line-height: .88; letter-spacing: -0.05em; margin: 1.5rem 0 2.5rem;
  font-weight: 200; display: flex; flex-direction: column;
}
.split { display: block; white-space: nowrap; }
.char {
  display: inline-block; font-variation-settings: "wght" 200;
  transform: translateY(110%); opacity: 0;
  transition: transform 1.4s var(--ease), opacity 1.4s var(--ease);
  transition-delay: calc(var(--i) * 0.05s + 0.9s);
  will-change: transform;
}
.loaded .char { transform: none; opacity: 1; }
.char.live { transition: none; }
.outline .char { color: transparent; -webkit-text-stroke: 1.5px var(--fg); }
.hero-sub { font-size: clamp(1.1rem, 2vw, 1.6rem); color: var(--muted); max-width: 32ch; font-weight: 400; }
.hero-sub em { font-weight: 600; }
.scroll-hint { position: absolute; bottom: 3rem; right: 5vw; display: flex; align-items: center; gap: 1rem; font-size: .8rem; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); }
.scroll-hint i { width: 1px; height: 60px; background: var(--line); position: relative; overflow: hidden; }
.scroll-hint i::after { content: ""; position: absolute; left: 0; top: -100%; width: 100%; height: 100%; background: var(--fg); animation: drop 2s var(--ease) infinite; }
@keyframes drop { to { top: 100%; } }

/* ---------- Marquee ---------- */
.marquee { border-block: 1px solid var(--line); padding: 2rem 0; overflow: hidden; background: rgba(10,7,4,.6); backdrop-filter: blur(10px); }
.marquee-track { display: flex; gap: 3rem; width: max-content; animation: marquee 30s linear infinite; align-items: center; }
.marquee span { font-size: clamp(2.5rem, 6vw, 5rem); font-weight: 800; letter-spacing: -0.03em; }
.marquee span:nth-of-type(even) { color: transparent; -webkit-text-stroke: 1px var(--fg); }
.marquee b { color: var(--a2); font-size: 2rem; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Statement ---------- */
.statement { height: 300vh; }
.statement .sticky { display: flex; align-items: center; padding: 0 8vw; }
.statement-text { font-size: clamp(1.8rem, 4.2vw, 4rem); font-weight: 700; line-height: 1.3; letter-spacing: -0.02em; max-width: 22ch; word-break: keep-all; }
.word { opacity: .12; transition: opacity .4s, color .4s; }
.word.on { opacity: 1; }

/* ---------- Zoom ---------- */
.zoom { height: 300vh; }
.zoom .sticky { display: grid; place-items: center; }
.zoom-text {
  position: absolute; font-size: clamp(3rem, 10vw, 10rem); font-weight: 800; letter-spacing: -0.05em; white-space: nowrap;
  transform: scale(var(--s, 1)); opacity: var(--o, 1); will-change: transform;
}
.zoom-text span { background: linear-gradient(90deg, var(--a1), var(--a2), var(--a3)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.zoom-behind {
  position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center;
  background: radial-gradient(circle at 50% 50%, #3a2306, #0a0704 70%);
  opacity: var(--bo, 0); transform: scale(var(--bs, 1.2));
}
.zoom-behind h2 { font-size: clamp(3rem, 9vw, 9rem); font-weight: 900; line-height: 1; letter-spacing: -0.04em; }
.zoom-kicker { color: var(--muted); margin-bottom: 1.5rem; font-size: 1.1rem; letter-spacing: .1em; }

/* ---------- Work ---------- */
.work { height: 400vh; }
.work .sticky { display: flex; flex-direction: column; justify-content: center; }
.work-head { padding: 0 5vw; margin-bottom: 3rem; display: flex; justify-content: space-between; align-items: flex-end; }
.work-head h2 { font-size: clamp(3rem, 7vw, 7rem); font-weight: 800; letter-spacing: -0.04em; line-height: 1; }
.work-head sup { font-size: .3em; color: var(--muted); vertical-align: top; margin-left: .3em; }
.work-track { display: flex; gap: 3vw; padding: 0 5vw; width: max-content; will-change: transform; }
.card {
  position: relative; width: min(70vw, 520px); aspect-ratio: 4 / 5; border-radius: 28px; overflow: hidden;
  background: #0d0d12; border: 1px solid var(--line);
  transform-style: preserve-3d; transition: transform .6s var(--ease);
}
.card-art { position: absolute; inset: 0; background: linear-gradient(135deg, var(--c1), var(--c2)); opacity: .85; }
.blob {
  position: absolute; width: 70%; aspect-ratio: 1; left: 15%; top: 10%; border-radius: 42% 58% 63% 37% / 41% 44% 56% 59%;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.7), transparent 60%);
  filter: blur(8px); animation: morph 10s ease-in-out infinite;
  transform: translate(var(--bx, 0), var(--by, 0));
}
@keyframes morph {
  0%,100% { border-radius: 42% 58% 63% 37% / 41% 44% 56% 59%; }
  50% { border-radius: 63% 37% 38% 62% / 55% 61% 39% 45%; }
}
.card-glare { position: absolute; inset: 0; background: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), rgba(255,255,255,.35), transparent 50%); opacity: 0; transition: opacity .4s; mix-blend-mode: overlay; }
.card:hover .card-glare { opacity: 1; }
.card-info { position: absolute; left: 0; right: 0; bottom: 0; padding: 2rem; background: linear-gradient(transparent, rgba(0,0,0,.7)); transform: translateZ(40px); }
.card-info span { font-size: .8rem; letter-spacing: .15em; text-transform: uppercase; opacity: .8; }
.card-info h3 { font-size: clamp(1.6rem, 2.5vw, 2.4rem); font-weight: 700; letter-spacing: -0.02em; margin: .4rem 0; }
.card-info p { font-size: .95rem; opacity: .8; }
.work-progress { margin: 3rem 5vw 0; height: 2px; background: var(--line); }
.work-progress span { display: block; height: 100%; width: calc(var(--p, 0) * 100%); background: var(--fg); }

/* ---------- Numbers ---------- */
.numbers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; padding: 20vh 5vw; border-top: 1px solid var(--line); }
.num b { display: block; font-size: clamp(4rem, 10vw, 9rem); font-weight: 800; letter-spacing: -0.05em; line-height: 1; background: linear-gradient(180deg, #fff, #555); -webkit-background-clip: text; background-clip: text; color: transparent; }
.num span { color: var(--muted); font-size: 1rem; }

/* ---------- Contact ---------- */
.contact { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; padding: 10vh 5vw; }
.contact-title { font-size: clamp(3.5rem, 11vw, 11rem); font-weight: 800; letter-spacing: -0.05em; line-height: .95; margin: 2rem 0 4rem; }
.contact-title span { color: transparent; -webkit-text-stroke: 1.5px var(--fg); }
.btn-big {
  width: 200px; height: 200px; border-radius: 50%; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--a1), var(--a2)); font-size: 1.2rem; font-weight: 600;
  box-shadow: 0 0 80px rgba(255, 184, 0, .35); transition: box-shadow .4s, opacity 1.2s var(--ease), transform 1.2s var(--ease);
}
.btn-big:hover { box-shadow: 0 0 140px rgba(255, 122, 26, .6); }
.btn-big span { display: inline-block; }

/* ---------- Footer ---------- */
.footer { display: flex; justify-content: space-between; padding: 2rem 5vw; border-top: 1px solid var(--line); color: var(--muted); font-size: .85rem; flex-wrap: wrap; gap: 1rem; }
.footer b { color: var(--fg); font-weight: 500; font-variant-numeric: tabular-nums; }

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .nav nav { gap: 1.2rem; }
  .numbers { grid-template-columns: 1fr; }
  .scroll-hint { display: none; }
  .btn-big { width: 150px; height: 150px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; }
}