:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #16161f;
  --bg-card-hover: #1c1c28;
  --text-primary: #e8e8ef;
  --text-secondary: #8888a0;
  --text-dim: #55556a;
  --accent-blue: #4d7cff;
  --accent-cyan: #00d4ff;
  --accent-purple: #8b5cf6;
  --gradient-main: linear-gradient(135deg, #4d7cff, #00d4ff);
  --gradient-subtle: linear-gradient(135deg, #4d7cff22, #00d4ff11);
  --border: #ffffff0a;
  --positive: #22c55e;
  --negative: #ef4444;
  --radius: 12px;
  --radius-lg: 20px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'DM Sans', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, .badge, .stat-number, .card-value, .preview-title {
  font-family: 'Space Grotesk', sans-serif;
}

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

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 24px 60px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.4;
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.3;
}

.glow-1 {
  width: 600px;
  height: 600px;
  background: var(--accent-blue);
  top: -200px;
  right: -100px;
}

.glow-2 {
  width: 400px;
  height: 400px;
  background: var(--accent-cyan);
  bottom: -100px;
  left: -100px;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 720px;
  margin-bottom: 60px;
}

.badge {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--accent-blue);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--accent-cyan);
  margin-bottom: 28px;
  background: #4d7cff0a;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.lede {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Dashboard Preview */
.hero-visual {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 800px;
}

.dashboard-preview {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(77, 124, 255, 0.05),
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 120px rgba(77, 124, 255, 0.08);
}

.preview-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
}

.dots {
  display: flex;
  gap: 6px;
}

.dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-dim);
}

.dots span:first-child { background: #ef4444; }
.dots span:nth-child(2) { background: #eab308; }
.dots span:last-child { background: #22c55e; }

.preview-title {
  font-size: 13px;
  color: var(--text-dim);
  font-weight: 500;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  padding: 24px;
}

.preview-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: border-color 0.3s;
}

.preview-card:hover {
  border-color: rgba(77, 124, 255, 0.2);
}

.card-label {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 500;
}

.card-value {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.card-delta {
  font-size: 13px;
  font-weight: 500;
}

.card-delta.positive { color: var(--positive); }
.card-delta.negative { color: var(--negative); }
.card-delta.neutral { color: var(--accent-cyan); }

.card-revenue .card-value { color: var(--accent-cyan); }
.card-subs .card-value { color: var(--accent-blue); }
.card-churn .card-value { color: var(--positive); }
.card-channels .card-value { color: var(--accent-purple); }

/* ===== STATS ===== */
.stats {
  padding: 60px 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-secondary);
}

.stats-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  display: block;
  font-size: 14px;
  color: var(--text-dim);
  margin-top: 6px;
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

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

.features-header {
  text-align: center;
  margin-bottom: 64px;
}

.features-header h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.features-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  transition: all 0.3s ease;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(77, 124, 255, 0.15);
  transform: translateY(-2px);
}

.feature-large {
  grid-column: span 2;
}

.feature-icon {
  font-size: 1.6rem;
  margin-bottom: 16px;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.feature-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===== VISION ===== */
.vision {
  padding: 100px 24px;
  position: relative;
  overflow: hidden;
}

.vision-inner {
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.vision-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  background: var(--accent-blue);
  border-radius: 50%;
  filter: blur(180px);
  opacity: 0.08;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.vision h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 32px;
  letter-spacing: -0.02em;
}

.vision-text {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.vision-text.dim {
  color: var(--text-dim);
  font-style: italic;
}

/* ===== FOOTER ===== */
.site-footer {
  padding: 40px 24px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-secondary);
}

.footer-tagline {
  font-size: 13px;
  color: var(--text-dim);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero {
    padding: 60px 20px 40px;
    min-height: auto;
  }

  .preview-grid {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 16px;
  }

  .card-value {
    font-size: 1.4rem;
  }

  .stats-inner {
    flex-direction: column;
    gap: 28px;
  }

  .stat-divider {
    width: 48px;
    height: 1px;
  }

  .stat-number {
    font-size: 1.8rem;
  }

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

  .feature-large {
    grid-column: span 1;
  }

  .feature-card {
    padding: 28px 24px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.8rem;
  }

  .lede {
    font-size: 1rem;
  }

  .features-header h2 {
    font-size: 1.5rem;
  }

  .vision h2 {
    font-size: 1.6rem;
  }
}