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

:root {
  --primary: #8B5CF6;
  --primary-dark: #7C3AED;
  --primary-light: #A78BFA;
  --gradient-start: #8B5CF6;
  --gradient-end: #EC4899;
  --success: #22C55E;
}

body {
  --bg-main: #09090B;
  --bg-card: #18181B;
  --bg-card-hover: #1F1F23;
  --bg-navbar: rgba(9, 9, 11, 0.9);
  --text-primary: #FAFAFA;
  --text-secondary: #A1A1AA;
  --text-muted: #71717A;
  --border-color: #27272A;
  --border-light: #3F3F46;
  --glow-color: rgba(139, 92, 246, 0.15);
  --toggle-bg: #3F3F46;
  --toggle-knob: #FAFAFA;
}

body.light-mode {
  --bg-main: #F8FAFC;
  --bg-card: #FFFFFF;
  --bg-card-hover: #F1F5F9;
  --bg-navbar: rgba(248, 250, 252, 0.9);
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #64748B;
  --border-color: #E2E8F0;
  --border-light: #CBD5E1;
  --glow-color: rgba(139, 92, 246, 0.1);
  --toggle-bg: #CBD5E1;
  --toggle-knob: #FFFFFF;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.main-container, .container {
  flex: 1;
  width: 100%;
}

.page-glow {
  position: fixed;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 800px;
  height: 600px;
  background: radial-gradient(ellipse, var(--glow-color) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 40px;
  background: var(--bg-navbar);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  z-index: 100;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.nav-logo {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: -0.5px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links {
  display: flex;
  gap: 28px;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}

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

.theme-toggle-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
}

.theme-toggle-icon {
  font-size: 16px;
  opacity: 0.5;
  transition: opacity 0.3s ease;
}

.theme-toggle-icon.active {
  opacity: 1;
}

.theme-toggle {
  position: relative;
  width: 52px;
  height: 28px;
  background: var(--toggle-bg);
  border-radius: 14px;
  border: none;
  cursor: pointer;
  transition: background 0.3s ease;
  padding: 0;
}

.theme-toggle:hover {
  opacity: 0.9;
}

.theme-toggle:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.theme-toggle-knob {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 22px;
  height: 22px;
  background: var(--toggle-knob);
  border-radius: 50%;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

body.light-mode .theme-toggle-knob {
  transform: translateX(24px);
}

body.light-mode .theme-toggle {
  background: var(--primary);
}

.main-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 120px 40px 60px;
  position: relative;
  z-index: 1;
}

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 120px 40px 60px;
  position: relative;
  z-index: 1;
}

.hero {
  text-align: center;
  padding: 40px 0 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 50px;
  padding: 8px 16px;
  font-size: 14px;
  color: var(--primary-light);
  margin-bottom: 32px;
}

.badge-icon {
  font-size: 16px;
}

.hero-title {
  font-size: clamp(40px, 8vw, 72px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 24px;
  color: var(--text-primary);
}

.gradient-text {
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

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

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 28px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.cta-button.primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
}

.cta-button.primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(139, 92, 246, 0.4);
}

.cta-button.secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.cta-button.secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

.section-header p {
  color: var(--text-secondary);
  font-size: 16px;
}

.features-section, .plans-section {
  padding: 60px 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s ease;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-4px);
}

.feature-icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(139, 92, 246, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon-wrapper.fire {
  background: rgba(249, 115, 22, 0.1);
}

.feature-icon {
  font-size: 28px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

.plans-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 700px;
  margin: 0 auto;
}

.plan-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 32px;
  position: relative;
  transition: all 0.3s ease;
}

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

.plan-card.premium {
  border-color: var(--primary);
}

.plan-badge {
  position: absolute;
  top: -12px;
  left: 24px;
  background: var(--primary);
  border-radius: 20px;
  padding: 4px 14px;
  font-size: 12px;
  font-weight: 600;
  color: white;
}

.plan-card h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 20px;
  margin-top: 8px;
  color: var(--text-primary);
}

.plan-features {
  list-style: none;
  margin: 0;
  padding: 0;
}

.plan-features li {
  padding: 10px 0;
  color: var(--text-secondary);
  font-size: 14px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 10px;
}

.plan-features li::before {
  content: "✓";
  color: var(--success);
  font-weight: 600;
}

.plan-features li:last-child {
  border-bottom: none;
}

.plan-note {
  margin-top: 20px;
  padding: 12px;
  background: rgba(139, 92, 246, 0.1);
  border-radius: 10px;
  font-size: 13px;
  color: var(--primary-light);
  text-align: center;
}

.links-section {
  padding: 40px 0;
}

.links-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.link-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 20px;
  text-decoration: none;
  transition: all 0.2s ease;
}

.link-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateX(4px);
}

.link-icon {
  font-size: 24px;
  flex-shrink: 0;
}

.link-content {
  flex: 1;
  min-width: 0;
}

.link-card h4 {
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 2px;
}

.link-card p {
  color: var(--text-muted);
  font-size: 13px;
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.link-arrow {
  color: var(--text-muted);
  font-size: 18px;
  transition: transform 0.2s, color 0.2s;
}

.link-card:hover .link-arrow {
  transform: translateX(4px);
  color: var(--primary);
}

.footer {
  border-top: 1px solid var(--border-color);
  margin-top: auto;
  transition: border-color 0.3s ease;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-logo {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  margin: 0;
}

.footer-links {
  display: flex;
  gap: 32px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

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

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: 24px 40px;
  text-align: center;
  transition: border-color 0.3s ease;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 13px;
  margin: 0;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 40px;
  margin-bottom: 24px;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

h1 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.last-updated {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 36px;
}

h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 64px;
  margin-bottom: 14px;
}

h2:first-of-type {
  margin-top: 0;
}

p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.7;
}

p:last-child {
  margin-bottom: 0;
}

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

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

ul {
  color: var(--text-secondary);
  margin-left: 24px;
  margin-bottom: 16px;
}

li {
  margin-bottom: 10px;
  line-height: 1.6;
}

.contact-box {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(236, 72, 153, 0.05));
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 16px;
  padding: 24px;
  margin-top: 28px;
}

.contact-box h3 {
  color: var(--primary-light);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.contact-box a {
  font-size: 20px;
  font-weight: 600;
}

@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .links-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 14px 20px;
  }
  
  .nav-links {
    gap: 16px;
  }
  
  .nav-right {
    gap: 16px;
  }
  
  .theme-toggle-icon {
    display: none;
  }
  
  .main-container {
    padding: 100px 20px 40px;
  }
  
  .container {
    padding: 100px 20px 40px;
  }

  .hero {
    padding: 40px 0 60px;
  }
  
  .hero-title {
    font-size: 36px;
    letter-spacing: -1px;
  }
  
  .hero-subtitle {
    font-size: 16px;
  }
  
  .features-grid, .plans-grid, .links-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    flex-direction: column;
    gap: 24px;
    text-align: center;
    padding: 32px 20px;
  }
  
  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
  }
  
  .card {
    padding: 28px 24px;
    border-radius: 16px;
  }
  
  h1 {
    font-size: 26px;
  }
  
  h2 {
    font-size: 16px;
  }
}

@media (max-width: 480px) {
  .nav-links {
    gap: 12px;
  }
  
  .nav-links a {
    font-size: 13px;
  }
  
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }
  
  .cta-button {
    width: 100%;
    justify-content: center;
  }
}