/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0a0f1a;
  --surface: #111827;
  --surface-2: #1a2236;
  --border: #1f2d44;
  --amber: #fbbf24;
  --amber-dim: rgba(251,191,36,0.15);
  --lime: #84cc16;
  --lime-dim: rgba(132,204,22,0.15);
  --text: #e8edf5;
  --text-dim: #7a8ba8;
  --error: #f87171;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', system-ui, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* === NAVBAR === */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 48px;
  background: rgba(10,15,26,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  color: var(--text);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.15s;
}

.nav-links a:hover { color: var(--text); }

/* === HERO === */
.hero {
  padding: 96px 48px 72px;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 32px;
}

.hero-label-dot {
  width: 6px;
  height: 6px;
  background: var(--amber);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-headline {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2.8rem, 5.5vw, 4.8rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 28px;
}

.hero-headline em {
  font-style: normal;
  color: var(--amber);
}

.hero-sub {
  max-width: 560px;
  font-size: 1.125rem;
  font-weight: 300;
  color: var(--text-dim);
  line-height: 1.7;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
}

.hero-stat {
  padding: 0 40px 0 0;
}

.hero-stat-num {
  display: block;
  font-family: 'Syne', sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.03em;
}

.hero-stat-label {
  display: block;
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-top: 2px;
}

.hero-stat-div {
  width: 1px;
  height: 48px;
  background: var(--border);
  margin-right: 40px;
  flex-shrink: 0;
}

/* === PROOF BAR === */
.proof-bar {
  padding: 28px 48px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}

.proof-label {
  font-size: 0.78rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
  white-space: nowrap;
}

.proof-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}

.proof-item {
  font-size: 0.9rem;
  color: var(--text-dim);
}

.proof-num {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  color: var(--text);
  margin-right: 4px;
}

/* === AUDIT DEMO === */
.audit-demo {
  padding: 96px 48px;
  max-width: 1200px;
  margin: 0 auto;
}

.demo-header {
  margin-bottom: 56px;
}

.section-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 16px;
}

.section-sub {
  max-width: 580px;
  font-size: 1rem;
  color: var(--text-dim);
  line-height: 1.7;
  font-weight: 300;
}

.demo-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.demo-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
}

.demo-panel--broken {
  border-color: rgba(248,113,113,0.2);
}

.demo-panel--fixed {
  border-color: rgba(132,204,22,0.2);
}

.demo-panel h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin: 20px 0 24px;
}

.demo-panel-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 6px 12px;
  border-radius: 100px;
}

.demo-panel-label--error {
  background: rgba(248,113,113,0.12);
  color: #f87171;
}

.demo-panel-label--success {
  background: rgba(132,204,22,0.12);
  color: #84cc16;
}

.listing-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px;
}

.listing-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.listing-name-broken {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: #f87171;
  text-decoration: line-through;
  text-decoration-color: rgba(248,113,113,0.4);
}

.listing-name-fixed {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: #84cc16;
}

.listing-status {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 100px;
}

.listing-status--error {
  background: rgba(248,113,113,0.15);
  color: #f87171;
}

.listing-status--success {
  background: rgba(132,204,22,0.15);
  color: #84cc16;
}

.listing-detail {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.listing-detail:last-of-type { border-bottom: none; }

.listing-detail--missing { color: #f87171; }
.listing-detail--mismatch { color: #fbbf24; }
.listing-detail--old { color: #f87171; }
.listing-detail--duplicate { color: #f87171; }
.listing-detail--listed { color: #84cc16; }
.listing-detail--consistent { color: #84cc16; }
.listing-detail--updated { color: #84cc16; }
.listing-detail--verified { color: #84cc16; }

.listing-score-bar {
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  margin: 16px 0 8px;
}

.listing-score-bar-fill {
  height: 100%;
  border-radius: 2px;
}

.listing-score-text {
  font-family: 'Syne', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
}

.demo-panel-note {
  margin-top: 20px;
  font-size: 0.82rem;
  color: var(--text-dim);
  font-style: italic;
  line-height: 1.5;
}

/* === FEATURES === */
.features {
  padding: 96px 48px;
  max-width: 1200px;
  margin: 0 auto;
}

.features-header { margin-bottom: 56px; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: rgba(251,191,36,0.25);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon--amber {
  background: var(--amber-dim);
}

.feature-icon--lime {
  background: var(--lime-dim);
}

.feature-card h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--text-dim);
  line-height: 1.65;
  font-weight: 300;
}

/* === HOW IT WORKS === */
.how-it-works {
  padding: 96px 48px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.how-header {
  max-width: 1200px;
  margin: 0 auto 64px;
}

.steps {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 0;
}

.step {
  flex: 1;
}

.step-num {
  font-family: 'Syne', sans-serif;
  font-size: 3rem;
  font-weight: 800;
  color: var(--amber-dim);
  line-height: 1;
  margin-bottom: 20px;
}

.step-body h3 {
  font-family: 'Syne', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
}

.step-body p {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.65;
  font-weight: 300;
  max-width: 300px;
}

.step-connector {
  flex-shrink: 0;
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, var(--border), var(--amber-dim), var(--border));
  margin: 0 24px;
  margin-top: -40px;
}

/* === CLOSING === */
.closing {
  padding: 96px 48px;
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.closing-quote {
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: 48px;
}

.closing-cta p {
  font-size: 1rem;
  color: var(--text-dim);
  font-weight: 300;
  max-width: 440px;
  margin: 0 auto;
  line-height: 1.7;
}

/* === FOOTER === */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text);
}

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

/* === RESPONSIVE === */
@media (max-width: 900px) {
  .navbar { padding: 16px 24px; }
  .hero { padding: 64px 24px 48px; }
  .proof-bar { padding: 24px; flex-direction: column; align-items: flex-start; gap: 20px; }
  .audit-demo { padding: 64px 24px; }
  .features { padding: 64px 24px; }
  .features-grid { grid-template-columns: 1fr; }
  .how-it-works { padding: 64px 24px; }
  .steps { flex-direction: column; gap: 32px; }
  .step-connector { display: none; }
  .closing { padding: 64px 24px; }
  footer { padding: 32px 24px; }
  .hero-stats { flex-direction: column; gap: 24px; }
  .hero-stat { padding: 0; }
  .hero-stat-div { display: none; }
  .demo-split { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .nav-links { display: none; }
}