:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #1a1f2e;
  --accent: #6366f1;
  --accent-glow: rgba(99, 102, 241, 0.3);
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border: #1e293b;
  --border-light: #334155;
  --gradient-1: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
  --gradient-2: linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --transition: 0.25s ease;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.03;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.bg-glow-1 {
  position: fixed;
  top: -40%;
  left: -20%;
  width: 800px;
  height: 800px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  z-index: 0;
  pointer-events: none;
  animation: float 20s ease-in-out infinite;
}

.bg-glow-2 {
  position: fixed;
  bottom: -40%;
  right: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.2) 0%, transparent 70%);
  z-index: 0;
  pointer-events: none;
  animation: float 25s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* Navigation */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav-logo {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-logo-icon {
  width: 34px;
  height: 34px;
  background: var(--gradient-1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 900;
  color: white;
}

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

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--gradient-1);
  color: white;
  padding: 10px 22px;
  border-radius: 99px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: opacity var(--transition), transform var(--transition);
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--text-primary);
  padding: 10px 22px;
  border-radius: 99px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  border: 1px solid var(--border-light);
  transition: border-color var(--transition), background var(--transition);
}

.btn-secondary:hover {
  border-color: var(--accent);
  background: rgba(99, 102, 241, 0.08);
}

/* Hero */
.hero {
  padding: 100px 0 80px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  color: var(--accent);
  padding: 6px 16px;
  border-radius: 99px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 28px;
  letter-spacing: 0.5px;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

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

.hero h1 {
  font-size: 3.8rem;
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.1;
  margin-bottom: 20px;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Project cards */
.projects-section {
  padding: 60px 0 120px;
  position: relative;
  z-index: 1;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header h2 {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  gap: 36px;
  align-items: center;
  transition: border-color var(--transition), box-shadow var(--transition);
  max-width: 800px;
  margin: 0 auto;
}

.project-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 40px var(--accent-glow);
}

.project-icon {
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  background: var(--gradient-2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

.project-info h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.project-info p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 16px;
  line-height: 1.6;
}

.project-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.tag {
  background: rgba(99, 102, 241, 0.1);
  color: var(--accent);
  padding: 4px 12px;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.3px;
}

/* Features grid */
.features {
  padding: 0 0 100px;
  position: relative;
  z-index: 1;
}

.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: var(--radius);
  padding: 32px;
  transition: border-color var(--transition);
}

.feature-card:hover {
  border-color: var(--border-light);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(99, 102, 241, 0.1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 18px;
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 48px 0;
  position: relative;
  z-index: 1;
  margin-top: auto;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.footer-logo {
  font-weight: 800;
  color: var(--text-primary);
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color var(--transition);
}

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

/* Privacy policy page */
.policy-hero {
  padding: 80px 0 40px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.policy-icon {
  width: 72px;
  height: 72px;
  background: var(--gradient-2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 24px;
}

.policy-hero h1 {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}

.policy-hero .policy-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.policy-hero .policy-meta {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.policy-content {
  padding: 24px 0 80px;
  position: relative;
  z-index: 1;
}

.policy-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px;
  max-width: 820px;
  margin: 0 auto 48px;
}

.policy-section {
  margin-bottom: 36px;
}

.policy-section:last-child {
  margin-bottom: 0;
}

.policy-section h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.policy-section p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
}

.policy-section a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  transition: opacity var(--transition);
}

.policy-section a:hover {
  opacity: 0.8;
}

.policy-contact {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 40px;
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}

.policy-contact h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.policy-contact p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.policy-contact .email {
  display: inline-block;
  color: var(--accent);
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
  border-bottom: 2px solid var(--accent);
  transition: opacity var(--transition);
}

.policy-contact .email:hover {
  opacity: 0.8;
}

/* 404 */
.not-found {
  padding: 120px 0;
  text-align: center;
  position: relative;
  z-index: 1;
}

.not-found h1 {
  font-size: 6rem;
  font-weight: 800;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.not-found p {
  color: var(--text-secondary);
  margin-bottom: 32px;
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 { font-size: 2.4rem; }
  .hero { padding: 60px 0 50px; }

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

  .project-card {
    flex-direction: column;
    text-align: center;
    padding: 28px;
  }

  .project-tags {
    justify-content: center;
  }

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

  .policy-card {
    padding: 28px;
  }

  .section-header h2 {
    font-size: 1.6rem;
  }

  .nav-links {
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.8rem; }
  .nav-links { display: none; }
}