:root {
  --bg: #0a0a0a;
  --fg: #f0f0f0;
  --fg-muted: #888;
  --accent-green: #39ff14;
  --accent-pink: #ff2d87;
  --accent-gradient: linear-gradient(135deg, #39ff14, #00e5ff, #ff2d87);
  --card-bg: #141414;
  --card-border: #222;
  --radius: 16px;
  --font-body: 'Space Grotesk', sans-serif;
  --font-display: 'Syne', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px 60px;
  position: relative;
  background: radial-gradient(ellipse at 50% 0%, rgba(57,255,20,0.06) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 80%, rgba(255,45,135,0.04) 0%, transparent 50%);
}

.hero-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-green);
  border: 1px solid rgba(57,255,20,0.3);
  padding: 8px 20px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 24px;
}

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 480px;
  margin-bottom: 24px;
  line-height: 1.7;
}

.hero-price {
  font-size: 1rem;
  color: var(--fg-muted);
  margin-bottom: 48px;
}

.price-tag {
  color: var(--accent-green);
  font-weight: 700;
  font-size: 1.3rem;
}

/* Phone mockups */
.hero-grid {
  display: flex;
  gap: 24px;
  justify-content: center;
  align-items: flex-end;
  flex-wrap: wrap;
}

.phone-mock {
  width: 140px;
  height: 280px;
  border-radius: 24px;
  border: 2px solid var(--card-border);
  overflow: hidden;
  position: relative;
  transition: transform 0.3s ease;
}

.phone-mock:hover {
  transform: translateY(-8px);
}

.phone-2 {
  height: 300px;
  width: 150px;
}

.phone-screen {
  width: 100%;
  height: 100%;
  padding: 20px 12px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.y2k-theme {
  background: linear-gradient(180deg, #e879f9, #c084fc, #818cf8);
}

.cyber-theme {
  background: linear-gradient(180deg, #0a0a0a, #0f172a, #1e1b4b);
  border: 1px solid rgba(57,255,20,0.2);
}

.clean-theme {
  background: linear-gradient(180deg, #fefce8, #f5f0e8, #ede8e0);
}

.mock-time {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
}

.y2k-theme .mock-time { color: #fff; }
.cyber-theme .mock-time { color: var(--accent-green); }
.clean-theme .mock-time { color: #78716c; }

.mock-icons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 12px;
}

.mock-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
}

.y2k-theme .mock-icon { background: rgba(255,255,255,0.3); }
.cyber-theme .mock-icon { background: rgba(57,255,20,0.15); border: 1px solid rgba(57,255,20,0.3); }
.clean-theme .mock-icon { background: rgba(168,162,158,0.2); }

.mock-widget {
  width: 80%;
  height: 36px;
  border-radius: 10px;
  margin-bottom: 12px;
}

.y2k-theme .mock-widget { background: rgba(255,255,255,0.2); }
.cyber-theme .mock-widget { background: rgba(57,255,20,0.1); border: 1px solid rgba(57,255,20,0.2); }
.clean-theme .mock-widget { background: rgba(168,162,158,0.15); }

.mock-label {
  position: absolute;
  bottom: 10px;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.y2k-theme .mock-label { color: rgba(255,255,255,0.7); }
.cyber-theme .mock-label { color: var(--accent-green); }
.clean-theme .mock-label { color: #a8a29e; }

/* ===== THEMES ===== */
.themes {
  padding: 100px 24px;
  max-width: 1000px;
  margin: 0 auto;
}

.themes h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 48px;
  letter-spacing: -1px;
}

.theme-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.theme-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: border-color 0.3s, transform 0.3s;
}

.theme-card:hover {
  transform: translateY(-4px);
}

.y2k-card:hover { border-color: #c084fc; }
.clean-card:hover { border-color: #a8a29e; }
.cyber-card:hover { border-color: var(--accent-green); }
.academia-card:hover { border-color: #92400e; }

.theme-emoji {
  font-size: 2rem;
  margin-bottom: 16px;
}

.theme-card h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.theme-card p {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* ===== HOW / KIT ===== */
.how {
  padding: 100px 24px;
  max-width: 900px;
  margin: 0 auto;
  border-top: 1px solid var(--card-border);
}

.how h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: 48px;
  letter-spacing: -1px;
}

.kit-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 32px;
}

.kit-item {
  text-align: left;
}

.kit-number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 4px;
}

.kit-label {
  font-size: 1rem;
  font-weight: 600;
  text-transform: lowercase;
  margin-bottom: 8px;
}

.kit-desc {
  font-size: 0.85rem;
  color: var(--fg-muted);
  line-height: 1.5;
}

/* ===== WHY ===== */
.why {
  padding: 100px 24px;
  background: linear-gradient(180deg, transparent 0%, rgba(57,255,20,0.02) 50%, transparent 100%);
}

.why-content {
  max-width: 720px;
  margin: 0 auto;
}

.why h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 24px;
  letter-spacing: -1px;
  line-height: 1.2;
}

.why p {
  font-size: 1.05rem;
  color: var(--fg-muted);
  margin-bottom: 16px;
  line-height: 1.7;
}

.stats-row {
  display: flex;
  gap: 40px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent-green);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  line-height: 1.4;
}

/* ===== CLOSING ===== */
.closing {
  padding: 100px 24px;
  border-top: 1px solid var(--card-border);
}

.closing-inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.closing-tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-pink);
  margin-bottom: 16px;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.closing-desc {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 0;
}

.closing-divider {
  width: 60px;
  height: 2px;
  background: var(--accent-gradient);
  margin: 40px auto;
}

.closing-vision {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.7;
  font-style: italic;
}

/* ===== FOOTER ===== */
.footer {
  padding: 48px 24px;
  border-top: 1px solid var(--card-border);
  text-align: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 4px;
  color: var(--fg);
  margin-bottom: 8px;
}

.footer-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
  .hero {
    padding: 60px 20px 40px;
  }

  .hero h1 {
    letter-spacing: -1px;
  }

  .hero-grid {
    gap: 12px;
  }

  .phone-mock {
    width: 100px;
    height: 200px;
  }

  .phone-2 {
    width: 110px;
    height: 220px;
  }

  .mock-time {
    font-size: 16px;
  }

  .mock-icon {
    width: 20px;
    height: 20px;
  }

  .theme-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .theme-card {
    padding: 24px 16px;
  }

  .kit-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .stats-row {
    gap: 24px;
  }

  .stat-value {
    font-size: 1.5rem;
  }
}

@media (max-width: 380px) {
  .theme-grid {
    grid-template-columns: 1fr;
  }

  .kit-grid {
    grid-template-columns: 1fr;
  }
}