:root {
  --bg: #0b0d12;
  --surface: #12151c;
  --surface2: #1a1e28;
  --border: rgba(255,255,255,.08);
  --text: #eef0f4;
  --muted: #8b929e;
  --accent: #6ea8fe;
  --accent2: #a78bfa;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 2rem;
  background: rgba(11,13,18,.78);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-logo { font-weight: 700; font-size: 1.05rem; letter-spacing: .04em; color: var(--text); text-decoration: none; }
.nav-links { display: flex; gap: 1.75rem; list-style: none; }
.nav-links a { color: var(--muted); font-size: .9rem; text-decoration: none; transition: color .2s; }
.nav-links a:hover { color: var(--text); text-decoration: none; }

.hero {
  min-height: 100vh;
  display: flex; flex-direction: column; justify-content: center;
  padding: 6rem 2rem 4rem;
  max-width: 1100px; margin: 0 auto;
}
.hero-tag { font-size: .8rem; text-transform: uppercase; letter-spacing: .18em; color: var(--accent); margin-bottom: 1rem; }
.hero h1 { font-size: clamp(2.4rem, 6vw, 4rem); font-weight: 700; line-height: 1.1; letter-spacing: -.03em; max-width: 16ch; }
.hero-desc { margin-top: 1.25rem; font-size: 1.05rem; color: var(--muted); max-width: 36rem; }
.hero-cta { margin-top: 2rem; display: flex; gap: 1rem; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; padding: .7rem 1.35rem;
  border-radius: 999px; font-size: .9rem; font-weight: 500;
  border: 1px solid var(--border); transition: all .2s; cursor: pointer;
  background: transparent; color: var(--text); text-decoration: none;
}
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent2)); border: none; color: #fff; }
.btn-primary:hover { opacity: .9; text-decoration: none; }
.btn:hover { border-color: rgba(255,255,255,.2); text-decoration: none; }

section { padding: 5rem 2rem; max-width: 1100px; margin: 0 auto; }
.section-label { font-size: .75rem; text-transform: uppercase; letter-spacing: .16em; color: var(--accent); margin-bottom: .5rem; }
.section-title { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 650; margin-bottom: .75rem; }
.section-desc { color: var(--muted); max-width: 40rem; margin-bottom: 2.5rem; }

.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}
.work-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: transform .25s, border-color .25s, box-shadow .25s;
  cursor: pointer;
}
.work-card:hover {
  transform: translateY(-4px);
  border-color: rgba(110,168,254,.35);
  box-shadow: 0 12px 40px rgba(0,0,0,.35);
}
.work-thumb {
  height: 180px;
  background: linear-gradient(145deg, var(--surface2), #0f1319);
  display: flex; align-items: center; justify-content: center;
  font-size: 2.5rem; opacity: .35;
  position: relative; overflow: hidden;
}
.work-thumb.has-3d::after {
  content: "3D";
  position: absolute; top: .75rem; right: .75rem;
  font-size: .65rem; font-weight: 600; letter-spacing: .08em;
  padding: .25rem .5rem; border-radius: 4px;
  background: rgba(110,168,254,.2); color: var(--accent); opacity: 1;
}
.work-body { padding: 1.25rem 1.35rem 1.4rem; }
.work-body h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: .4rem; }
.work-body p { font-size: .88rem; color: var(--muted); line-height: 1.55; }
.work-tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-top: .85rem; }
.work-tags span {
  font-size: .72rem; padding: .2rem .55rem; border-radius: 999px;
  background: rgba(255,255,255,.06); color: var(--muted);
}

.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; align-items: start; }
@media (max-width: 768px) { .about-grid { grid-template-columns: 1fr; } .nav-links { display: none; } }
.about-text p { color: var(--muted); margin-bottom: 1rem; font-size: .95rem; }
.skills { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.skills span {
  padding: .35rem .75rem; border-radius: 8px; font-size: .82rem;
  background: var(--surface2); border: 1px solid var(--border); color: var(--muted);
}
.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.stat-box {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 12px; padding: 1.25rem;
}
.stat-box strong { display: block; font-size: 1.6rem; font-weight: 700; color: var(--accent); }
.stat-box span { font-size: .82rem; color: var(--muted); }

.viewer-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  margin-top: 1rem;
}
.viewer-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap; gap: .75rem;
}
.viewer-header h3 { font-size: 1rem; font-weight: 600; }
.viewer-header p { font-size: .82rem; color: var(--muted); margin-top: .15rem; }
.viewer-tabs { display: flex; gap: .5rem; }
.viewer-tabs button {
  padding: .4rem .85rem; border-radius: 999px; font-size: .78rem;
  border: 1px solid var(--border); background: transparent; color: var(--muted);
  cursor: pointer; transition: all .2s;
}
.viewer-tabs button.active, .viewer-tabs button:hover {
  background: rgba(110,168,254,.15); border-color: rgba(110,168,254,.4); color: var(--accent);
}
#viewer-canvas { width: 100%; height: 420px; display: block; background: #080a0e; }
.viewer-hint { text-align: center; font-size: .75rem; color: #555; padding: .65rem; }

.contact-box {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 2rem; max-width: 32rem;
}
.contact-box p { color: var(--muted); margin-bottom: 1rem; font-size: .92rem; }
.contact-links { display: flex; flex-direction: column; gap: .65rem; }
.contact-links a { color: var(--text); font-size: .92rem; }

footer {
  border-top: 1px solid var(--border);
  padding: 2rem; text-align: center;
  color: var(--muted); font-size: .82rem;
}

#viewer-loading {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  background: #080a0e; color: var(--muted); font-size: .85rem;
  transition: opacity .3s; pointer-events: none;
}
.viewer-wrap { position: relative; }