:root {
  --bg-deep: #0a0e1a;
  --bg-card: #111827;
  --bg-surface: #1a2035;
  --fg: #e2e8f0;
  --fg-muted: #94a3b8;
  --fg-dim: #64748b;
  --accent: #38bdf8;
  --accent-glow: rgba(56, 189, 248, 0.15);
  --warn: #f59e0b;
  --warn-bg: rgba(245, 158, 11, 0.12);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.12);
  --success: #22c55e;
  --success-bg: rgba(34, 197, 94, 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-deep);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ---- NAV ---- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.25rem 2rem;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(56, 189, 248, 0.08);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.nav-icon { color: var(--accent); }
.nav-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}
.nav-tagline {
  font-size: 0.875rem;
  color: var(--fg-dim);
  font-style: italic;
}

/* ---- HERO ---- */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 8rem 2rem 4rem;
}
.hero-badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  border-radius: 100px;
  background: var(--accent-glow);
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}
.hero-accent {
  color: var(--accent);
}
.hero-lede {
  font-size: 1.125rem;
  color: var(--fg-muted);
  max-width: 520px;
  line-height: 1.7;
}

/* Hero Card */
.hero-visual {
  display: flex;
  justify-content: center;
}
.hero-card {
  background: var(--bg-card);
  border: 1px solid rgba(56, 189, 248, 0.12);
  border-radius: var(--radius);
  padding: 1.5rem;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.4), 0 0 60px var(--accent-glow);
}
.card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--fg-dim);
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}
.card-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}
.card-search {
  background: var(--bg-surface);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--fg);
  margin-bottom: 1.25rem;
}
.card-results {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.card-result {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: 0.75rem;
  align-items: center;
  padding: 0.65rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}
.card-result--warn { background: var(--danger-bg); }
.card-result--med { background: var(--warn-bg); }
.card-result--low { background: var(--success-bg); }
.result-severity {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
}
.card-result--warn .result-severity { color: var(--danger); }
.card-result--med .result-severity { color: var(--warn); }
.card-result--low .result-severity { color: var(--success); }
.result-date {
  font-size: 0.75rem;
  color: var(--fg-dim);
  font-family: var(--font-display);
}

/* ---- PROBLEM ---- */
.problem {
  padding: 6rem 2rem;
  background: var(--bg-card);
  border-top: 1px solid rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.problem-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.section-label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 2.5rem;
}
.problem-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 4rem;
  align-items: start;
}
.problem-stat { text-align: left; }
.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: 4.5rem;
  font-weight: 700;
  color: var(--warn);
  line-height: 1;
  margin-bottom: 0.75rem;
}
.stat-label {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.5;
}
.problem-text p {
  font-size: 1.1rem;
  color: var(--fg-muted);
  margin-bottom: 1.25rem;
}
.problem-text strong { color: var(--fg); }

/* ---- FEATURES ---- */
.features {
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}
.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}
.feature {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius);
  padding: 2rem;
  transition: border-color 0.3s ease;
}
.feature:hover {
  border-color: rgba(56, 189, 248, 0.2);
}
.feature-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: rgba(56, 189, 248, 0.2);
  line-height: 1;
  margin-bottom: 1rem;
}
.feature h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}
.feature p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ---- STATS ---- */
.stats {
  padding: 4rem 2rem;
  background: var(--bg-card);
  border-top: 1px solid rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}
.stats-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3rem;
}
.stats-item { text-align: center; flex: 1; }
.stats-value {
  display: block;
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.stats-desc {
  font-size: 0.875rem;
  color: var(--fg-dim);
  line-height: 1.5;
}
.stats-divider {
  width: 1px;
  height: 60px;
  background: rgba(255,255,255,0.08);
  flex-shrink: 0;
}

/* ---- CLOSING ---- */
.closing {
  padding: 8rem 2rem;
  text-align: center;
}
.closing-inner {
  max-width: 680px;
  margin: 0 auto;
}
.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}
.closing-text {
  font-size: 1.1rem;
  color: var(--fg-muted);
  margin-bottom: 1rem;
  line-height: 1.7;
}
.closing-badge {
  display: inline-block;
  margin-top: 2rem;
  padding: 0.5rem 1.25rem;
  border-radius: 100px;
  border: 1px solid rgba(56, 189, 248, 0.2);
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--fg-dim);
  letter-spacing: 0.04em;
}

/* ---- FOOTER ---- */
.footer {
  padding: 2.5rem 2rem;
  border-top: 1px solid rgba(255,255,255,0.04);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
}
.footer-copy {
  display: block;
  font-size: 0.8rem;
  color: var(--fg-dim);
  margin-top: 0.25rem;
}
.footer-contact {
  text-align: right;
  font-size: 0.85rem;
  color: var(--fg-dim);
}
.footer-contact span {
  display: block;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 6rem;
    gap: 2.5rem;
  }
  .hero-visual { order: -1; }
  .hero-card { max-width: 100%; }
  .problem-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .stat-number { font-size: 3.5rem; }
  .features-grid { grid-template-columns: 1fr; }
  .stats-inner {
    flex-direction: column;
    gap: 2rem;
  }
  .stats-divider {
    width: 60px;
    height: 1px;
  }
}

@media (max-width: 600px) {
  body { font-size: 16px; }
  .nav { padding: 1rem 1.25rem; }
  .hero { padding: 5rem 1.25rem 3rem; }
  .hero h1 { font-size: 2rem; }
  .problem, .features, .stats, .closing { padding-left: 1.25rem; padding-right: 1.25rem; }
  .closing h2 { font-size: 1.75rem; }
  .card-result { grid-template-columns: 40px 1fr; }
  .result-date { display: none; }
  .footer-inner { flex-direction: column; gap: 1rem; text-align: center; }
  .footer-contact { text-align: center; }
}