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

:root {
  --bg: #0A0E1A;
  --bg-card: #111827;
  --bg-card-hover: #1a2332;
  --fg: #F1F5F9;
  --fg-muted: #94A3B8;
  --accent: #14B8A6;
  --accent-dim: rgba(20, 184, 166, 0.12);
  --warn: #F59E0B;
  --error: #EF4444;
  --ok: #22C55E;
  --border: rgba(148, 163, 184, 0.1);
  --font-display: 'Syne', sans-serif;
  --font-body: 'Manrope', sans-serif;
}

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;
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(12px);
}
.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.logo-accent { color: var(--accent); }
.nav-tag {
  font-size: 12px;
  color: var(--fg-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 500;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 120px 32px 80px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(20, 184, 166, 0.08) 0%, transparent 70%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(59, 130, 246, 0.04) 0%, transparent 60%);
  pointer-events: none;
}
.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-block;
  background: var(--accent-dim);
  border: 1px solid rgba(20, 184, 166, 0.25);
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 20px;
  margin-bottom: 28px;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(44px, 7vw, 80px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--fg);
  margin-bottom: 24px;
  max-width: 700px;
}
.hero-sub {
  font-size: 18px;
  color: var(--fg-muted);
  max-width: 520px;
  margin-bottom: 56px;
  line-height: 1.7;
}
.hero-visual {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 32px;
  max-width: 780px;
  position: relative;
  overflow: hidden;
}
.hero-visual::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.5;
}
.scan-line {
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--accent) 50%, transparent 100%);
  animation: scan 3s ease-in-out infinite;
  margin-bottom: 20px;
  opacity: 0.6;
}
@keyframes scan {
  0% { transform: translateY(0); opacity: 0.6; }
  50% { opacity: 1; }
  100% { transform: translateY(180px); opacity: 0; }
}
.scan-results { display: flex; flex-direction: column; gap: 8px; }
.result-row {
  display: grid;
  grid-template-columns: 28px 80px 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-family: 'Courier New', monospace;
}
.result-ok { background: rgba(34, 197, 94, 0.06); }
.result-warn { background: rgba(245, 158, 11, 0.07); }
.result-error { background: rgba(239, 68, 68, 0.07); }
.result-icon { font-size: 16px; font-family: var(--font-body); font-weight: 700; }
.result-ok .result-icon { color: var(--ok); }
.result-warn .result-icon { color: var(--warn); }
.result-error .result-icon { color: var(--error); }
.result-code { color: var(--fg); font-weight: 700; }
.suggest { color: var(--accent); font-size: 12px; }
.result-desc { color: var(--fg-muted); }
.result-status { font-size: 11px; font-weight: 600; letter-spacing: 0.04em; font-family: var(--font-body); }
.result-ok .result-status { color: var(--ok); }
.result-warn .result-status { color: var(--warn); }
.result-error .result-status { color: var(--error); }

/* Stats */
.stats {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 60px 32px;
  background: var(--bg-card);
}
.stats-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 0;
}
.stat-item {
  flex: 1;
  text-align: center;
  padding: 0 40px;
}
.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 10px;
}
.stat-label {
  font-size: 13px;
  color: var(--fg-muted);
  line-height: 1.5;
}
.stat-divider {
  width: 1px;
  height: 60px;
  background: var(--border);
  flex-shrink: 0;
}

/* Features */
.features {
  padding: 100px 32px;
}
.features-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 60px;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px 32px;
  transition: border-color 0.2s;
}
.feature-card:hover { border-color: rgba(20, 184, 166, 0.3); }
.feature-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-dim);
  border-radius: 10px;
  margin-bottom: 20px;
  border: 1px solid rgba(20, 184, 166, 0.2);
}
.feature-card h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 12px;
}
.feature-card p {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* How it works */
.how {
  padding: 100px 32px;
  border-top: 1px solid var(--border);
  background: var(--bg-card);
}
.how-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.how-text h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 20px;
}
.how-text p {
  font-size: 15px;
  color: var(--fg-muted);
  line-height: 1.8;
  margin-bottom: 16px;
}
.how-visual {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.flow-step {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px 24px;
  background: var(--bg);
  border-radius: 12px;
  border: 1px solid var(--border);
  margin-bottom: 8px;
}
.step-num {
  width: 32px;
  height: 32px;
  background: var(--accent-dim);
  border: 1px solid rgba(20, 184, 166, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  flex-shrink: 0;
}
.step-text {
  font-size: 14px;
  color: var(--fg-muted);
}
.flow-arrow {
  width: 2px;
  height: 16px;
  background: var(--border);
  margin-left: 36px;
}

/* Closing */
.closing {
  padding: 100px 32px;
  text-align: center;
}
.closing-inner { max-width: 700px; margin: 0 auto; }
.closing-quote {
  font-family: var(--font-display);
  font-size: clamp(22px, 3.5vw, 32px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 24px;
}
.closing-sub {
  font-size: 16px;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 40px 32px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--fg);
}
.footer-tag {
  font-size: 11px;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.footer-legal {
  font-size: 12px;
  color: var(--fg-muted);
}

/* Responsive */
@media (max-width: 768px) {
  .hero { padding: 100px 20px 60px; }
  .hero-headline { font-size: 36px; }
  .result-row { grid-template-columns: 28px 70px 1fr; }
  .result-status { display: none; }
  .stats-inner { flex-direction: column; gap: 32px; }
  .stat-divider { width: 60px; height: 1px; }
  .features-grid { grid-template-columns: 1fr; }
  .how-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-inner { flex-direction: column; gap: 20px; text-align: center; }
}