/* ===========================================================================
   nyase.kr — 정체성 매니페스토
   하나의 사람, 여러 개의 얼굴. 개발자 · 스튜디오 아티스트 · 그리고 사람.
   =========================================================================== */

:root {
  --bg:        #07070d;
  --bg-soft:   #0d0d18;
  --ink:       #f4f3fb;
  --ink-dim:   #a7a6bd;
  --ink-faint: #6b6a83;
  --line:      rgba(255,255,255,.09);

  --orange:  #F97316;   /* 창업자 · 회사 */
  --magenta: #DB2777;   /* 사람 · 개인 */
  --sky:     #38BDF8;   /* 개발자 */
  --mint:    #2dd4bf;   /* 스튜디오 아티스트 */

  --grad: linear-gradient(100deg, var(--orange), var(--magenta) 45%, var(--sky));
  --maxw: 1120px;
  --ease: cubic-bezier(.22,.61,.36,1);

  --accent: var(--sky);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: 'Pretendard', 'Pretendard Variable', -apple-system, BlinkMacSystemFont,
               'Apple SD Gothic Neo', 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  overflow-x: hidden;
  letter-spacing: -.01em;
  -webkit-font-smoothing: antialiased;
}

body.lock { overflow: hidden; height: 100vh; }

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

::selection { background: rgba(219,39,119,.4); color: #fff; }

.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; }

/* ---- background field: drifting aurora + pointer glow --------------------- */
.field {
  position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden;
}
.field .glow {
  position: absolute; border-radius: 50%; filter: blur(90px); opacity: .5;
  mix-blend-mode: screen; will-change: transform;
}
.glow--o { width: 46vw; height: 46vw; background: var(--orange);  top: -8%;  left: -6%;  animation: drift1 26s var(--ease) infinite alternate; }
.glow--m { width: 42vw; height: 42vw; background: var(--magenta); top: 30%;  right: -10%; animation: drift2 31s var(--ease) infinite alternate; }
.glow--s { width: 40vw; height: 40vw; background: var(--sky);     bottom: -14%; left: 18%;  animation: drift3 35s var(--ease) infinite alternate; }
.glow--t { width: 30vw; height: 30vw; background: var(--mint);    bottom: 6%;  right: 20%;  opacity: .35; animation: drift1 29s var(--ease) infinite alternate; }

/* cursor-following light */
.field .cursor {
  position: absolute; width: 380px; height: 380px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.10), transparent 65%);
  transform: translate(-50%, -50%); left: 50%; top: 30%;
  transition: opacity .4s; opacity: 0;
}
.field .grain {
  position: absolute; inset: -50%; opacity: .035; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

@keyframes drift1 { from { transform: translate(0,0) scale(1); } to { transform: translate(8vw,6vh) scale(1.15); } }
@keyframes drift2 { from { transform: translate(0,0) scale(1.1); } to { transform: translate(-7vw,-5vh) scale(1); } }
@keyframes drift3 { from { transform: translate(0,0) scale(1); } to { transform: translate(5vw,-7vh) scale(1.2); } }

/* =====================  INTRO GATE  ====================== */
.gate {
  position: fixed; inset: 0; z-index: 100;
  display: grid; place-items: center; text-align: center;
  background: radial-gradient(ellipse at 50% 40%, #14111f, #04040a 70%);
  transition: opacity .9s var(--ease), visibility .9s;
}
.gate.hide { opacity: 0; visibility: hidden; }
.gate-inner { padding: 24px; max-width: 560px; }
.gate .mark {
  width: 64px; height: 64px; margin: 0 auto 28px;
  animation: floaty 5s ease-in-out infinite;
}
.gate h1 {
  font-size: clamp(2.6rem, 9vw, 4.6rem); font-weight: 800; letter-spacing: -.04em;
  line-height: 1; margin-bottom: 18px;
}
.gate h1 .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.gate p { color: var(--ink-dim); font-size: 1.02rem; margin-bottom: 36px; }
.gate p .kr { display:block; margin-top:6px; color: var(--ink-faint); font-size:.92rem; }

.enter {
  position: relative; display: inline-flex; align-items: center; gap: 12px;
  padding: 16px 34px; border-radius: 100px; cursor: pointer;
  font-size: 1rem; font-weight: 700; color: #06060c; letter-spacing: .01em;
  background: var(--grad); border: none;
  box-shadow: 0 12px 40px -10px rgba(219,39,119,.6);
  transition: transform .3s var(--ease), box-shadow .3s;
}
.enter:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 20px 60px -12px rgba(219,39,119,.8); }
.enter:active { transform: translateY(0) scale(.99); }
.enter .eq { display:inline-flex; gap:3px; align-items:flex-end; height:16px; }
.enter .eq i { width:3px; height:100%; background:#06060c; border-radius:2px; animation: eq 1s ease-in-out infinite; }
.enter .eq i:nth-child(2){ animation-delay:.2s } .enter .eq i:nth-child(3){ animation-delay:.4s } .enter .eq i:nth-child(4){ animation-delay:.1s }
.gate small { display:block; margin-top:20px; color: var(--ink-faint); font-size:.8rem; }

@keyframes eq { 0%,100%{ transform: scaleY(.35) } 50%{ transform: scaleY(1) } }
@keyframes floaty { 0%,100%{ transform: translateY(0) } 50%{ transform: translateY(-8px) } }

/* =====================  NAV  ====================== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 60;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px; transition: background .4s, backdrop-filter .4s, border-color .4s;
  border-bottom: 1px solid transparent;
}
.nav.solid { background: rgba(7,7,13,.72); backdrop-filter: blur(14px); border-color: var(--line); }
.nav .brand { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -.02em; }
.nav .brand img { width: 28px; height: 28px; }
.nav .brand b { font-size: 1.05rem; }
.nav .brand .dot { color: var(--magenta); }
.nav .links { display: flex; gap: 26px; align-items: center; }
.nav .links a { font-size: .9rem; color: var(--ink-dim); transition: color .25s; }
.nav .links a:hover { color: var(--ink); }
@media (max-width: 720px){ .nav .links a:not(.np){ display:none } }

/* =====================  HERO  ====================== */
.hero { position: relative; z-index: 1; min-height: 100svh; display: grid; align-items: center; padding: 120px 0 80px; }
.hero .eyebrow {
  display: inline-flex; align-items: center; gap: 10px; font-size: .82rem; letter-spacing: .18em;
  text-transform: uppercase; color: var(--ink-dim); margin-bottom: 22px;
}
.hero .eyebrow::before { content:""; width: 28px; height: 1px; background: var(--grad); }
.hero h2 {
  font-size: clamp(3rem, 12vw, 8.5rem); font-weight: 800; letter-spacing: -.05em; line-height: .92;
}
.hero h2 .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .sub { margin-top: 26px; max-width: 620px; font-size: clamp(1.05rem,2.4vw,1.35rem); color: var(--ink-dim); }
.hero .sub b { color: var(--ink); font-weight: 600; }
.hero .quote {
  margin-top: 34px; font-size: clamp(1.2rem,3vw,1.7rem); font-weight: 700; letter-spacing: -.02em;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-meta { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 16px; border-radius: 100px;
  font-size: .85rem; color: var(--ink-dim); border: 1px solid var(--line); background: rgba(255,255,255,.02);
}
.chip i { width: 7px; height: 7px; border-radius: 50%; background: var(--c, var(--sky)); }
.scroll-hint { position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); color: var(--ink-faint); font-size: .78rem; letter-spacing:.1em; }
.scroll-hint span { display:block; width:1px; height:34px; margin:8px auto 0; background: linear-gradient(var(--ink-faint), transparent); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{ opacity:.3 } 50%{ opacity:1 } }

/* =====================  SECTION SCAFFOLD  ====================== */
section.block { position: relative; z-index: 1; padding: clamp(80px, 12vw, 150px) 0; }
.eyebrow-2 { font-size: .8rem; letter-spacing: .2em; text-transform: uppercase; color: var(--accent); margin-bottom: 16px; transition: color .5s; }
.section-title { font-size: clamp(1.9rem, 5vw, 3.2rem); font-weight: 800; letter-spacing: -.03em; line-height: 1.08; }
.section-lead { margin-top: 18px; max-width: 640px; color: var(--ink-dim); font-size: 1.05rem; }

/* ---- manifesto ---- */
.manifesto { display: flex; flex-direction: column; gap: clamp(10px, 2vw, 20px); }
.manifesto .line {
  font-size: clamp(1.6rem, 5.5vw, 3.4rem); font-weight: 800; letter-spacing: -.035em; line-height: 1.12;
  color: var(--ink-faint); transition: color .6s var(--ease), transform .6s var(--ease), opacity .6s;
}
.manifesto .line.on { color: var(--ink); }
.manifesto .line.on .hl { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.manifesto .line .small { display:block; font-size: clamp(.95rem,2vw,1.15rem); font-weight:500; color: var(--ink-dim); letter-spacing:-.01em; margin-top:10px; }

/* =====================  PERSONAS  ====================== */
.persona-tabs { display: flex; flex-wrap: wrap; gap: 10px; margin: 36px 0 0; }
.persona-tabs button {
  appearance: none; cursor: pointer; padding: 12px 22px; border-radius: 100px; font: inherit; font-size: .95rem; font-weight: 600;
  color: var(--ink-dim); background: rgba(255,255,255,.03); border: 1px solid var(--line); transition: all .3s var(--ease);
}
.persona-tabs button .d { display:inline-block; width:8px;height:8px;border-radius:50%;background:var(--c);margin-right:8px;vertical-align:middle; }
.persona-tabs button:hover { color: var(--ink); border-color: rgba(255,255,255,.2); }
.persona-tabs button.active { color: #07070d; background: var(--c); border-color: transparent; font-weight: 700; }
.persona-tabs button.active .d { background: #07070d; }

.persona-stage {
  margin-top: 36px; display: grid; grid-template-columns: minmax(0,.95fr) minmax(0,1.05fr); gap: clamp(24px,5vw,64px);
  align-items: center;
}
@media (max-width: 860px){ .persona-stage { grid-template-columns: 1fr; gap: 30px; } }

.persona-visual { position: relative; aspect-ratio: 4/5; border-radius: 22px; overflow: hidden; border: 1px solid var(--line); }
.persona-visual::after { content:""; position:absolute; inset:0; box-shadow: inset 0 0 120px rgba(0,0,0,.5); pointer-events:none; }
.persona-visual .layer {
  position: absolute; inset: 0; opacity: 0; transform: scale(1.06); transition: opacity .8s var(--ease), transform 1.2s var(--ease);
}
.persona-visual .layer img { width:100%; height:100%; object-fit: cover; }
.persona-visual .layer.show { opacity: 1; transform: scale(1); }
.persona-visual .tint { position:absolute; inset:0; mix-blend-mode: soft-light; opacity:.5; background: var(--c); transition: background .6s; }
.persona-visual .frame { position:absolute; inset:0; border:1px solid rgba(255,255,255,.08); border-radius:22px; pointer-events:none; }
.persona-visual .badge {
  position:absolute; left:16px; bottom:16px; z-index:3; padding:7px 14px; border-radius:100px; font-size:.8rem; font-weight:700;
  color:#07070d; background: var(--c); backdrop-filter: blur(4px); transition: background .6s;
}

.persona-copy .role { font-size: .85rem; letter-spacing:.14em; text-transform: uppercase; color: var(--c); transition: color .6s; }
.persona-copy h3 { font-size: clamp(1.7rem,4.5vw,2.6rem); font-weight: 800; letter-spacing:-.03em; margin: 10px 0 6px; }
.persona-copy h3 .en { color: var(--ink-faint); font-weight: 600; font-size: .55em; margin-left: 10px; letter-spacing:0; }
.persona-copy .tag { color: var(--ink); font-weight:600; font-size: 1.1rem; margin-bottom: 16px; }
.persona-copy p { color: var(--ink-dim); margin-bottom: 18px; }
.persona-copy ul { list-style: none; display:flex; flex-direction:column; gap:10px; }
.persona-copy li { display:flex; gap:12px; align-items:flex-start; color: var(--ink-dim); font-size:.97rem; }
.persona-copy li::before { content:""; flex:0 0 auto; width:6px; height:6px; border-radius:50%; background: var(--c); margin-top:9px; transition: background .6s; }
.persona-copy .links { margin-top:24px; display:flex; flex-wrap:wrap; gap:12px; }
.persona-copy .links a {
  display:inline-flex; align-items:center; gap:8px; padding:11px 20px; border-radius:100px; font-size:.9rem; font-weight:600;
  border:1px solid var(--line); color: var(--ink); transition: all .3s var(--ease);
}
.persona-copy .links a:hover { border-color: var(--c); transform: translateY(-2px); }
.persona-copy .links a.solid { background: var(--c); border-color: transparent; color:#07070d; }

.persona-copy .fade { animation: copyIn .6s var(--ease); }
@keyframes copyIn { from { opacity:0; transform: translateY(12px); } to { opacity:1; transform:none; } }

/* =====================  COMPANY-DEFINED  ====================== */
.company {
  position: relative; border-radius: 28px; overflow: hidden; padding: clamp(32px,5vw,60px);
  border: 1px solid var(--line); background: linear-gradient(160deg, rgba(249,115,22,.08), rgba(56,189,248,.05));
}
.company::before {
  content:""; position:absolute; top:-40%; right:-10%; width:50%; height:160%;
  background: radial-gradient(circle, rgba(249,115,22,.25), transparent 65%); filter: blur(20px); pointer-events:none;
}
.company .badge2 { display:inline-flex; align-items:center; gap:10px; font-size:.82rem; letter-spacing:.14em; text-transform:uppercase; color: var(--orange); margin-bottom:18px; }
.company h3 { font-size: clamp(1.6rem,4vw,2.4rem); font-weight:800; letter-spacing:-.03em; line-height:1.2; max-width: 720px; }
.company h3 .grad { background: var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }
.company .role-line { margin-top:20px; display:flex; flex-wrap:wrap; gap:10px 24px; color: var(--ink-dim); font-size:.95rem; }
.company .role-line b { color: var(--ink); }
.company p.body { margin-top:18px; color: var(--ink-dim); max-width: 720px; }
.company .actions { margin-top:30px; display:flex; flex-wrap:wrap; gap:12px; }
.company .actions a {
  display:inline-flex; align-items:center; gap:8px; padding:13px 24px; border-radius:100px; font-weight:700; font-size:.92rem;
  transition: transform .3s var(--ease), box-shadow .3s;
}
.company .actions a.primary { background: var(--grad); color:#07070d; box-shadow: 0 12px 36px -12px rgba(249,115,22,.6); }
.company .actions a.ghost { border:1px solid var(--line); color: var(--ink); }
.company .actions a:hover { transform: translateY(-3px); }

.prod-grid { margin-top: 30px; display:grid; grid-template-columns: 1fr 1fr; gap:16px; }
@media (max-width:680px){ .prod-grid{ grid-template-columns:1fr } }
.prod {
  padding:22px; border-radius:18px; border:1px solid var(--line); background: rgba(255,255,255,.02);
  transition: border-color .3s, transform .3s var(--ease);
}
.prod:hover { transform: translateY(-3px); border-color: rgba(255,255,255,.16); }
.prod .pn { display:flex; align-items:center; justify-content:space-between; }
.prod .pn b { font-size:1.1rem; font-weight:800; }
.prod .pn .cat { font-size:.78rem; color: var(--ink-faint); }
.prod p { margin-top:10px; color: var(--ink-dim); font-size:.92rem; }

/* =====================  GALLERY STRIP  ====================== */
.gallery { display:grid; grid-template-columns: repeat(4,1fr); gap:14px; margin-top:36px; }
@media (max-width:760px){ .gallery{ grid-template-columns: repeat(2,1fr) } }
.gallery figure { position:relative; aspect-ratio: 3/4; border-radius:16px; overflow:hidden; border:1px solid var(--line); }
.gallery img { width:100%; height:100%; object-fit:cover; transition: transform .8s var(--ease), filter .6s; filter: saturate(.92); }
.gallery figure:hover img { transform: scale(1.06); filter: saturate(1.1); }
.gallery figcaption {
  position:absolute; left:0; right:0; bottom:0; padding:14px 14px 12px; font-size:.82rem; color: var(--ink);
  background: linear-gradient(transparent, rgba(0,0,0,.78)); opacity:0; transform: translateY(8px); transition: all .4s var(--ease);
}
.gallery figure:hover figcaption { opacity:1; transform:none; }

/* =====================  FOOTER  ====================== */
.foot { position: relative; z-index:1; border-top: 1px solid var(--line); padding: 60px 0 50px; margin-top: 40px; }
.foot-grid { display:flex; flex-wrap:wrap; justify-content:space-between; gap:30px; align-items:flex-end; }
.foot .big { font-size: clamp(1.6rem,5vw,2.6rem); font-weight:800; letter-spacing:-.03em; }
.foot .big .grad { background: var(--grad); -webkit-background-clip:text; background-clip:text; color:transparent; }
.foot .links { display:flex; flex-wrap:wrap; gap:10px; }
.foot .links a { padding:10px 18px; border-radius:100px; border:1px solid var(--line); font-size:.88rem; color: var(--ink-dim); transition: all .3s; }
.foot .links a:hover { color: var(--ink); border-color: rgba(255,255,255,.22); }
.foot .copy { margin-top:40px; color: var(--ink-faint); font-size:.82rem; display:flex; flex-wrap:wrap; gap:6px 18px; }

/* =====================  AUDIO DOCK  ====================== */
.dock {
  position: fixed; z-index: 70; right: 22px; bottom: 22px;
  display: flex; align-items: center; gap: 12px; padding: 10px 16px 10px 12px; border-radius: 100px;
  background: rgba(13,13,24,.78); backdrop-filter: blur(14px); border: 1px solid var(--line);
  box-shadow: 0 12px 40px -16px rgba(0,0,0,.8); opacity: 0; transform: translateY(20px); transition: opacity .6s, transform .6s;
}
.dock.show { opacity: 1; transform: none; }
.dock button { appearance:none; cursor:pointer; border:none; background:none; color: var(--ink); display:grid; place-items:center; }
.dock .toggle {
  width: 38px; height: 38px; border-radius: 50%; background: var(--grad); color:#07070d;
}
.dock .viz { display:flex; align-items:flex-end; gap:2px; height:24px; width: 64px; }
.dock .viz i { flex:1; background: linear-gradient(var(--sky), var(--magenta)); border-radius:2px; height:20%; transition: height .08s linear; }
.dock .label { font-size:.78rem; color: var(--ink-dim); white-space:nowrap; }
@media (max-width:520px){ .dock .label{ display:none } .dock .viz{ width:46px } }

/* =====================  REVEAL  ====================== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay:.08s } .reveal.d2 { transition-delay:.16s } .reveal.d3 { transition-delay:.24s } .reveal.d4 { transition-delay:.32s }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; }
  .reveal { opacity:1; transform:none; }
}