/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #080B14;
  --bg-card: #0F1623;
  --bg-card-hover: #141D2E;
  --fg: #E8EEF8;
  --fg-muted: #6B7A99;
  --cyan: #00E5FF;
  --orange: #FF6B35;
  --border: rgba(255,255,255,0.07);
  --font-head: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

html { font-size: 16px; scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 40px;
  height: 64px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  background: rgba(8,11,20,0.8);
}
.nav-inner { width: 100%; max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.nav-logo { font-family: var(--font-head); font-weight: 800; font-size: 1.25rem; color: var(--cyan); letter-spacing: -0.02em; }
.nav-tagline { font-size: 0.875rem; color: var(--fg-muted); }

/* ── Hero ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 40px 80px;
  overflow: hidden;
}
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,229,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 40%, transparent 100%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; width: 100%; max-width: 1200px; margin: 0 auto; }
.hero-text { max-width: 640px; }
.hero-title {
  font-family: var(--font-head);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 20px;
}
.hero-title span { color: var(--cyan); }
.hero-sub { font-size: 1.125rem; color: var(--fg-muted); max-width: 500px; margin-bottom: 60px; line-height: 1.7; }

/* Asset cards in hero */
.hero-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 700px;
}
.asset-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.2s, transform 0.2s;
}
.asset-card:hover { border-color: var(--cyan); transform: translateY(-2px); }
.asset-icon { color: var(--fg-muted); }
.asset-info { display: flex; flex-direction: column; gap: 2px; }
.asset-count { font-family: var(--font-head); font-size: 1.75rem; font-weight: 800; color: var(--fg); line-height: 1; }
.asset-card--avatar .asset-count { color: var(--orange); }
.asset-label { font-size: 0.8rem; color: var(--fg-muted); font-weight: 500; letter-spacing: 0.04em; text-transform: uppercase; }

/* ── Section shared ── */
.section-header { margin-bottom: 56px; }
.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.section-sub { color: var(--fg-muted); font-size: 1.05rem; }

/* ── Categories ── */
.categories { padding: 100px 40px; border-top: 1px solid var(--border); }
.cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 1200px;
  margin: 0 auto;
}
.cat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color 0.2s;
}
.cat-card:hover { border-color: rgba(0,229,255,0.3); }
.cat-visual {
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.cat-card--furniture .cat-visual { background: linear-gradient(135deg, #0D2035, #0A1628); }
.cat-card--avatar .cat-visual { background: linear-gradient(135deg, #1A0D08, #140A06); }
.cat-card--shaders .cat-visual { background: linear-gradient(135deg, #0D1A08, #0A1406); }
.cat-card--tools .cat-visual { background: linear-gradient(135deg, #1A0D35, #140A2D); }

.cat-shape {
  width: 56px; height: 56px;
  border-radius: 12px;
  border: 2px solid;
  position: absolute;
}
.cat-card--furniture .cat-shape { border-color: var(--cyan); opacity: 0.3; transform: rotate(15deg); }
.cat-card--avatar .cat-shape { border-color: var(--orange); opacity: 0.3; transform: rotate(-10deg); }
.cat-card--shaders .cat-shape { border-color: #39FF14; opacity: 0.3; transform: rotate(20deg); }
.cat-card--tools .cat-shape { border-color: #A855F7; opacity: 0.3; transform: rotate(-5deg); }

.cat-content { padding: 20px 24px 24px; }
.cat-content h3 { font-family: var(--font-head); font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.cat-content p { font-size: 0.875rem; color: var(--fg-muted); line-height: 1.5; }

/* ── Features ── */
.features { padding: 100px 40px; background: var(--bg-card); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.feat-grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px 48px; }
.feat-item { display: flex; gap: 20px; align-items: flex-start; }
.feat-marker {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  width: 32px; height: 32px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  margin-top: 4px;
}
.feat-marker--cyan { background: rgba(0,229,255,0.15); color: var(--cyan); }
.feat-marker--orange { background: rgba(255,107,53,0.15); color: var(--orange); }
.feat-body h3 { font-family: var(--font-head); font-size: 1.05rem; font-weight: 700; margin-bottom: 8px; }
.feat-body p { font-size: 0.9rem; color: var(--fg-muted); line-height: 1.6; }

/* ── Process ── */
.process { padding: 100px 40px; }
.process-flow {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 0;
}
.process-step { flex: 1; text-align: center; }
.process-step .process-num {
  font-family: var(--font-head);
  font-size: 3rem;
  font-weight: 800;
  color: var(--cyan);
  opacity: 0.2;
  line-height: 1;
  margin-bottom: 16px;
}
.process-step .process-content h3 { font-family: var(--font-head); font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.process-step .process-content p { font-size: 0.875rem; color: var(--fg-muted); line-height: 1.5; }
.process-arrow { color: var(--fg-muted); opacity: 0.4; flex-shrink: 0; }

/* ── Manifesto ── */
.manifesto { padding: 100px 40px; background: var(--bg-card); border-top: 1px solid var(--border); }
.manifesto-inner { max-width: 720px; margin: 0 auto; }
.manifesto-quote {
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  font-style: italic;
  color: var(--fg);
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: 40px;
  border-left: 3px solid var(--cyan);
  padding-left: 28px;
}
.manifesto-body { font-size: 1rem; color: var(--fg-muted); line-height: 1.8; margin-bottom: 20px; }

/* ── Footer ── */
.footer { padding: 48px 40px; border-top: 1px solid var(--border); }
.footer-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: flex-start; justify-content: space-between; gap: 32px; }
.footer-logo { font-family: var(--font-head); font-weight: 800; font-size: 1.1rem; color: var(--cyan); display: block; margin-bottom: 10px; }
.footer-note { font-size: 0.85rem; color: var(--fg-muted); max-width: 320px; line-height: 1.5; }
.footer-copy { font-size: 0.8rem; color: var(--fg-muted); opacity: 0.6; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .feat-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .nav { padding: 0 20px; }
  .hero { padding: 100px 20px 60px; }
  .hero-grid { grid-template-columns: 1fr 1fr; }
  .hero-grid .asset-card:last-child { grid-column: 1 / -1; }
  .categories, .features, .process, .manifesto { padding: 60px 20px; }
  .cat-grid { grid-template-columns: 1fr; }
  .process-flow { flex-direction: column; gap: 32px; }
  .process-arrow { transform: rotate(90deg); }
  .footer-inner { flex-direction: column; }
  .footer-links { order: -1; }
}
@media (max-width: 480px) {
  .hero-title { font-size: 2rem; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-grid .asset-card:last-child { grid-column: auto; }
}