:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-card: #16161f;
  --bg-card-hover: #1c1c28;
  --fg-primary: #e8e8ed;
  --fg-secondary: #9494a8;
  --fg-muted: #5e5e72;
  --accent: #6c5ce7;
  --accent-light: #8b7cf7;
  --accent-glow: rgba(108, 92, 231, 0.15);
  --accent-alt: #00d2ff;
  --border: #222233;
  --radius: 12px;
  --radius-sm: 8px;
}

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

html {
  scroll-behavior: smooth;
}

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

/* Hero */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  text-align: center;
  overflow: hidden;
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.85rem;
  font-family: 'DM Mono', monospace;
  color: var(--accent-light);
  background: var(--accent-glow);
  margin-bottom: 32px;
  letter-spacing: 0.02em;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

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

.lede {
  font-size: 1.15rem;
  color: var(--fg-secondary);
  max-width: 600px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding: 24px 40px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: inline-flex;
}

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

.stat-number {
  font-family: 'DM Mono', monospace;
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--fg-primary);
}

.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);
}

.hero-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(108, 92, 231, 0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

/* Sections shared */
.section-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-tag {
  display: inline-block;
  font-family: 'DM Mono', monospace;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-light);
  margin-bottom: 16px;
}

section h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 20px;
}

/* How It Works */
.how-it-works {
  padding: 100px 24px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.steps {
  margin-top: 48px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 32px 0;
}

.step-number {
  font-family: 'DM Mono', monospace;
  font-size: 2.4rem;
  font-weight: 500;
  color: var(--accent);
  opacity: 0.5;
  min-width: 60px;
  line-height: 1;
  padding-top: 4px;
}

.step-content h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-content p {
  color: var(--fg-secondary);
  font-size: 1rem;
  max-width: 520px;
}

.step-connector {
  width: 1px;
  height: 32px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  margin-left: 30px;
  opacity: 0.3;
}

/* Features */
.features {
  padding: 100px 24px;
}

.features-lede {
  color: var(--fg-secondary);
  font-size: 1.1rem;
  max-width: 580px;
  margin-bottom: 48px;
}

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

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: background 0.2s, border-color 0.2s;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(108, 92, 231, 0.3);
}

.feature-large {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--bg-card), rgba(108, 92, 231, 0.06));
}

.feature-icon {
  font-size: 1.6rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-card p {
  color: var(--fg-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Comparison */
.comparison {
  padding: 100px 24px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.comparison-table {
  margin-top: 48px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.comp-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  border-bottom: 1px solid var(--border);
}

.comp-row:last-child {
  border-bottom: none;
}

.comp-cell {
  padding: 16px 20px;
  font-size: 0.92rem;
}

.comp-header .comp-cell {
  font-weight: 600;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--bg-card);
  color: var(--fg-muted);
}

.comp-label {
  color: var(--fg-secondary);
  font-weight: 500;
}

.comp-them {
  color: var(--fg-muted);
  background: rgba(0,0,0,0.15);
}

.comp-us {
  color: var(--accent-light);
  font-weight: 500;
  background: var(--accent-glow);
}

/* Closing */
.closing {
  position: relative;
  padding: 120px 24px;
  text-align: center;
  overflow: hidden;
}

.closing .section-inner {
  position: relative;
  z-index: 2;
}

.closing h2 {
  max-width: 700px;
  margin: 0 auto 24px;
}

.closing-text {
  color: var(--fg-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

.closing-glow {
  position: absolute;
  bottom: -300px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 210, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

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

.footer-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.footer-tagline {
  color: var(--fg-muted);
  font-size: 0.82rem;
  margin-left: 12px;
}

.footer-brand {
  display: flex;
  align-items: center;
}

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

/* Audit Form */
.audit-form {
  margin: 0 auto 40px;
  max-width: 600px;
}

.audit-input-wrap {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 6px 6px 16px;
  gap: 8px;
  transition: border-color 0.2s;
  margin-bottom: 10px;
}

.audit-input-wrap:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.audit-input-icon {
  font-size: 1rem;
  flex-shrink: 0;
  opacity: 0.5;
}

.audit-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--fg-primary);
  font-family: 'DM Mono', monospace;
  font-size: 0.88rem;
  padding: 8px 0;
  min-width: 0;
}

.audit-input::placeholder {
  color: var(--fg-muted);
}

.audit-btn {
  flex-shrink: 0;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 12px 20px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  white-space: nowrap;
}

.audit-btn:hover:not(:disabled) {
  background: var(--accent-light);
  transform: translateY(-1px);
}

.audit-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.audit-note {
  font-size: 0.78rem;
  color: var(--fg-muted);
  font-family: 'DM Mono', monospace;
}

.audit-error-msg {
  color: #fca5a5 !important;
  margin-bottom: 6px;
}

/* Mobile */
@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 80px 20px 60px;
  }

  .hero-stats {
    flex-direction: column;
    gap: 16px;
    padding: 20px 24px;
    width: 100%;
  }

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

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

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

  .comp-row {
    grid-template-columns: 1.2fr 1fr 1fr;
  }

  .comp-cell {
    padding: 12px 10px;
    font-size: 0.82rem;
  }

  .step {
    gap: 16px;
  }

  .step-number {
    font-size: 1.8rem;
    min-width: 40px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .footer-brand {
    flex-direction: column;
    gap: 4px;
  }

  .footer-tagline {
    margin-left: 0;
  }

  .how-it-works,
  .features,
  .comparison,
  .closing {
    padding: 60px 20px;
  }
}