/* Oniro - GitHub Pages Theme
   Colors from Flutter app:
   - Background: #0D0D14 (dark)
   - Secondary: #1A1A2E (cards)
   - Primary/Gold: #FFD700
   - Accent: #FF9500
   - Purple: #6366F1
   - Success: #10B981
   - Error: #FF6B6B
*/

:root {
  --bg-primary: #0D0D14;
  --bg-secondary: #1A1A2E;
  --bg-card: rgba(255, 255, 255, 0.03);
  --gold: #FFD700;
  --gold-dark: #FF9500;
  --purple: #6366F1;
  --success: #10B981;
  --error: #FF6B6B;
  --text-primary: #FFFFFF;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.5);
  --border-color: rgba(255, 255, 255, 0.08);
  --gold-gradient: linear-gradient(135deg, #FFD700, #FF9500);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* Background pattern */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-primary) 100%);
  z-index: -1;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.container-narrow {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(13, 13, 20, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo img {
  height: 44px;
  width: auto;
}

.logo span {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
}

/* Navigation */
nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 10px 16px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
}

nav a:hover {
  color: var(--text-primary);
  background: var(--bg-card);
}

nav a.active {
  color: var(--gold);
  background: rgba(255, 215, 0, 0.1);
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 16px;
  padding: 4px;
  background: var(--bg-card);
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

.lang-switcher button {
  padding: 8px 12px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.lang-switcher button:hover {
  color: var(--text-secondary);
}

.lang-switcher button.active {
  background: var(--gold-gradient);
  color: var(--bg-primary);
}

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 24px;
  cursor: pointer;
  padding: 8px;
}

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

.hero-logo {
  width: 120px;
  height: 120px;
  margin: 0 auto 32px;
  border-radius: 32px;
  box-shadow: 0 20px 60px rgba(255, 215, 0, 0.2);
}

.hero h1 {
  font-size: 56px;
  font-weight: 800;
  margin-bottom: 16px;
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 20px;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 40px;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 32px;
  border-radius: 16px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--gold-gradient);
  color: var(--bg-primary);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 215, 0, 0.3);
}

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

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
}

/* Features Section */
.features {
  padding: 100px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 16px;
}

.section-title p {
  color: var(--text-secondary);
  font-size: 18px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 32px;
  transition: all 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 215, 0, 0.3);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
}

.feature-icon.gold {
  background: rgba(255, 215, 0, 0.15);
}

.feature-icon.purple {
  background: rgba(99, 102, 241, 0.15);
}

.feature-icon.green {
  background: rgba(16, 185, 129, 0.15);
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 15px;
}

/* Page Content */
.page-header {
  padding: 140px 0 60px;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
  font-size: 42px;
  font-weight: 700;
  margin-bottom: 12px;
}

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

.page-content {
  padding: 60px 0 100px;
}

.page-content h2 {
  font-size: 24px;
  font-weight: 600;
  margin: 40px 0 16px;
  color: var(--gold);
}

.page-content h2:first-child {
  margin-top: 0;
}

.page-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 24px 0 12px;
}

.page-content p {
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.page-content ul, .page-content ol {
  color: var(--text-secondary);
  margin: 16px 0;
  padding-left: 24px;
}

.page-content li {
  margin-bottom: 8px;
}

.page-content a {
  color: var(--gold);
  text-decoration: none;
}

.page-content a:hover {
  text-decoration: underline;
}

/* Info Box */
.info-box {
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 16px;
  padding: 24px;
  margin: 24px 0;
}

.info-box.warning {
  background: rgba(255, 215, 0, 0.1);
  border-color: rgba(255, 215, 0, 0.2);
}

.info-box h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.info-box p {
  margin-bottom: 0;
  font-size: 14px;
}

/* Steps */
.steps {
  margin: 40px 0;
}

.step {
  display: flex;
  gap: 20px;
  margin-bottom: 32px;
}

.step-number {
  width: 48px;
  height: 48px;
  background: var(--gold-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  color: var(--bg-primary);
  flex-shrink: 0;
}

.step-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  margin-top: 0;
}

.step-content p {
  margin-bottom: 0;
}

/* Footer */
footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 40px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-top: 16px;
  max-width: 300px;
}

.footer-links h4 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

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

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

.footer-bottom {
  text-align: center;
  padding-top: 40px;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 14px;
}

/* Responsive */
@media (max-width: 768px) {
  .header-content {
    padding: 12px 16px;
  }

  nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    padding: 16px;
    flex-direction: column;
    border-bottom: 1px solid var(--border-color);
  }

  nav.active {
    display: flex;
  }

  nav a {
    width: 100%;
    text-align: center;
    padding: 14px;
  }

  .lang-switcher {
    margin: 16px 0 0 0;
  }

  .mobile-menu-btn {
    display: block;
  }

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

  .hero h1 {
    font-size: 36px;
  }

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

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

  .section-title h2 {
    font-size: 28px;
  }

  .page-header h1 {
    font-size: 28px;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-brand p {
    max-width: 100%;
  }
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease forwards;
}

.fade-in-delay-1 {
  animation-delay: 0.1s;
  opacity: 0;
}

.fade-in-delay-2 {
  animation-delay: 0.2s;
  opacity: 0;
}

.fade-in-delay-3 {
  animation-delay: 0.3s;
  opacity: 0;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-secondary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}