:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #1a1a26;
  --fg: #e8e6e3;
  --fg-muted: #8a8694;
  --accent: #c084fc;
  --accent-glow: rgba(192, 132, 252, 0.15);
  --accent-secondary: #818cf8;
  --gradient-start: #c084fc;
  --gradient-end: #818cf8;
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', 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);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  text-align: center;
  max-width: 740px;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.03em;
  margin-bottom: 32px;
  background: var(--bg-elevated);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero h1 .accent {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.lede {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 560px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  margin-bottom: 56px;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

/* Demo visual */
.hero-visual {
  width: 100%;
  max-width: 680px;
  position: relative;
  z-index: 1;
}

.splinter-demo {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.source-block {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 24px;
}

.source-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: white;
  flex-shrink: 0;
}

.source-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.source-label {
  font-size: 0.75rem;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.source-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
}

.arrow-container {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  padding: 0 8px;
}

.arrow-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}

.arrow-label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
  padding: 4px 12px;
  background: var(--bg);
  border: 1px solid var(--accent);
  border-radius: 100px;
}

.output-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.output-chip {
  padding: 10px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 500;
  text-align: center;
  border: 1px solid var(--border);
  transition: border-color 0.2s;
}

.output-chip:hover {
  border-color: var(--border-hover);
}

.chip-linkedin { background: rgba(10, 102, 194, 0.12); color: #5b9bd5; }
.chip-twitter { background: rgba(29, 155, 240, 0.12); color: #60b4f7; }
.chip-tiktok { background: rgba(254, 44, 85, 0.12); color: #fe6b8b; }
.chip-youtube { background: rgba(255, 0, 0, 0.1); color: #ff6b6b; }
.chip-instagram { background: rgba(225, 48, 108, 0.12); color: #e87ea1; }
.chip-email { background: rgba(16, 185, 129, 0.12); color: #6dd5b8; }
.chip-blog { background: rgba(245, 158, 11, 0.12); color: #f5c266; }
.chip-quote { background: rgba(139, 92, 246, 0.12); color: #b794f6; }

/* ===== HOW IT WORKS ===== */
.how-it-works {
  padding: 100px 24px;
  max-width: 960px;
  margin: 0 auto;
}

.how-it-works h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 56px;
  text-align: center;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.step {
  position: relative;
}

.step-number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.35;
  line-height: 1;
  margin-bottom: 16px;
}

.step h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.step p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ===== PLATFORMS ===== */
.platforms {
  padding: 100px 24px;
  background: var(--bg-elevated);
}

.platforms-inner {
  max-width: 960px;
  margin: 0 auto;
}

.platforms h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  text-align: center;
}

.platforms-sub {
  color: var(--fg-muted);
  text-align: center;
  max-width: 520px;
  margin: 0 auto 48px;
  font-size: 1.05rem;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.platform-card {
  padding: 28px 24px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.25s;
}

.platform-card:hover {
  border-color: var(--accent);
}

.platform-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.platform-formats {
  color: var(--fg-muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

/* ===== FEATURES ===== */
.features {
  padding: 100px 24px;
  max-width: 960px;
  margin: 0 auto;
}

.features h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 56px;
  text-align: center;
}

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

.feature {
  padding: 32px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.25s;
}

.feature:hover {
  border-color: var(--border-hover);
}

.feature-icon {
  font-size: 1.5rem;
  margin-bottom: 16px;
  width: 48px;
  height: 48px;
  background: var(--accent-glow);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.feature p {
  color: var(--fg-muted);
  font-size: 0.92rem;
  line-height: 1.65;
}

/* ===== CLOSING ===== */
.closing {
  padding: 120px 24px;
  background: var(--bg-elevated);
  text-align: center;
}

.closing-inner {
  max-width: 700px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 20px;
}

.closing p {
  color: var(--fg-muted);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 40px;
}

.closing-tagline {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.footer-tagline {
  color: var(--fg-muted);
  font-size: 0.85rem;
  font-style: italic;
}

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

  .hero-stats {
    gap: 20px;
  }

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

  .output-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

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

  .splinter-demo {
    padding: 20px;
  }

  .how-it-works,
  .features {
    padding: 64px 20px;
  }

  .platforms,
  .closing {
    padding: 64px 20px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2.2rem;
  }

  .lede {
    font-size: 1rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: 16px;
  }

  .stat-divider {
    width: 40px;
    height: 1px;
  }
}