/* PolyPulse Design System */
:root {
  --bg-dark: #0f172a;
  --bg-card: rgba(30, 41, 59, 0.85);
  --bg-card-hover: rgba(30, 41, 59, 1);
  --border: rgba(148, 163, 184, 0.12);
  --primary: #f59e0b;
  --primary-dark: #d97706;
  --secondary: #8b5cf6;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --success: #22c55e;
  --error: #ef4444;
  --gradient: linear-gradient(135deg, #f59e0b, #d97706);
  --gradient-hero: radial-gradient(ellipse at 50% 0%, rgba(245, 158, 11, 0.12) 0%, transparent 60%);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Exo 2', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--primary-dark);
}

/* Typography */
h1, h2, h3 {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 20px;
  color: var(--text-primary);
}

.navbar-brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.navbar-links a {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}

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

/* Container */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Hero */
.hero {
  padding: 160px 0 100px;
  text-align: center;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 600px;
  background: var(--gradient-hero);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: 100px;
  font-size: 13px;
  color: var(--primary);
  font-weight: 500;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.1;
  margin-bottom: 20px;
  position: relative;
}

.hero h1 .gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 12px;
  font-family: 'Exo 2', sans-serif;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient);
  color: #0f172a;
  box-shadow: 0 4px 24px rgba(245, 158, 11, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(245, 158, 11, 0.35);
  color: #0f172a;
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: rgba(148, 163, 184, 0.25);
  transform: translateY(-2px);
  color: var(--text-primary);
}

.btn svg {
  width: 18px;
  height: 18px;
}

/* Features */
.features {
  padding: 80px 0;
}

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

.section-title h2 {
  font-size: clamp(24px, 3vw, 36px);
  margin-bottom: 12px;
}

.section-title p {
  color: var(--text-secondary);
  font-size: 16px;
  max-width: 480px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}

.feature-card {
  grid-column: span 2;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 28px;
  backdrop-filter: blur(16px);
  transition: all 0.3s;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 158, 11, 0.25);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 24px;
}

.feature-icon.gold { background: rgba(245, 158, 11, 0.12); }
.feature-icon.purple { background: rgba(139, 92, 246, 0.12); }
.feature-icon.green { background: rgba(34, 197, 94, 0.12); }
.feature-icon.blue { background: rgba(59, 130, 246, 0.12); }
.feature-icon.orange { background: rgba(245, 158, 11, 0.12); }
.feature-icon.red { background: rgba(239, 68, 68, 0.12); }
.feature-icon.pink { background: rgba(236, 72, 153, 0.12); }

.feature-card h3 {
  font-size: 18px;
  margin-bottom: 8px;
  font-family: 'Exo 2', sans-serif;
  font-weight: 700;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* How it Works */
.how-it-works {
  padding: 80px 0;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  margin-top: 48px;
}

.step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--gradient);
  color: #0f172a;
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.step h3 {
  font-size: 18px;
  margin-bottom: 8px;
  font-family: 'Exo 2', sans-serif;
  font-weight: 700;
}

.step p {
  color: var(--text-secondary);
  font-size: 14px;
  max-width: 280px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Platforms */
.platforms {
  padding: 80px 0;
}

.platforms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.platform-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  backdrop-filter: blur(16px);
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.platform-card .platform-icon {
  font-size: 32px;
  flex-shrink: 0;
}

.platform-card h3 {
  font-size: 18px;
  margin-bottom: 6px;
  font-family: 'Exo 2', sans-serif;
  font-weight: 700;
}

.platform-card p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

/* CTA */
.cta {
  padding: 100px 0;
  text-align: center;
}

.cta-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 64px 40px;
  backdrop-filter: blur(16px);
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient);
}

.cta-box h2 {
  font-size: clamp(24px, 3vw, 32px);
  margin-bottom: 12px;
}

.cta-box p {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 32px;
}

/* Footer */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Orbitron', sans-serif;
  font-weight: 600;
  font-size: 14px;
  color: var(--text-secondary);
}

.footer-brand img {
  width: 20px;
  height: 20px;
  border-radius: 4px;
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 13px;
}

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

/* Responsive */
@media (max-width: 768px) {
  .navbar-links {
    gap: 20px;
  }

  .hero {
    padding: 120px 0 60px;
  }

  .hero p {
    font-size: 16px;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

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

  .feature-card {
    grid-column: auto;
  }

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

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

  .cta-box {
    padding: 40px 24px;
  }

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

@media (max-width: 480px) {
  .navbar-links {
    display: none;
  }

  .hero h1 {
    font-size: 28px;
  }
}