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

:root {
  --color-bg: #0a0e17;
  --color-surface: #111827;
  --color-accent: #3b82f6;
  --color-accent-glow: rgba(59, 130, 246, 0.15);
  --color-text: #f1f5f9;
  --color-text-muted: #94a3b8;
  --color-border: #1e293b;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Animated background grid */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at 50% 50%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 50%, black 20%, transparent 70%);
}

/* Glow orb */
.glow-orb {
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 0;
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
}

/* Layout */
.container {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* Header */
header {
  padding: 32px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--color-accent), #6366f1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: white;
  letter-spacing: -0.5px;
}

.logo-text {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.3px;
}

.logo-text span {
  color: var(--color-accent);
}

/* Hero */
.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px 0 80px;
  text-align: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-accent-glow);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-accent);
  margin: 0 auto 32px;
  letter-spacing: 0.02em;
}

.badge::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

h1 .gradient {
  background: linear-gradient(135deg, var(--color-accent), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  max-width: 520px;
  margin: 0 auto 48px;
}

/* CTA */
.cta-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--color-accent), #6366f1);
  color: white;
  font-size: 15px;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 0 24px rgba(59, 130, 246, 0.25);
}

.cta-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 32px rgba(59, 130, 246, 0.4);
}

.cta-button svg {
  width: 16px;
  height: 16px;
}

.cta-secondary {
  font-size: 14px;
  color: var(--color-text-muted);
}

.cta-secondary a {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.cta-secondary a:hover {
  border-bottom-color: var(--color-accent);
}

/* Features hint */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  padding: 64px 0;
  border-top: 1px solid var(--color-border);
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 24px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: rgba(59, 130, 246, 0.3);
}

.feature-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--color-accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--color-accent);
}

.feature-card h3 {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 13px;
  line-height: 1.6;
  color: var(--color-text-muted);
}

/* Footer */
footer {
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

footer p {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* Responsive */
@media (max-width: 480px) {
  .hero {
    padding: 80px 0 48px;
  }

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