/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Sky Theme */
  --sky-top: #60A5FA;
  --sky-mid: #93C5FD;
  --sky-bottom: #DBEAFE;

  /* Night Theme */
  --night-top: #0F172A;
  --night-mid: #1E293B;
  --night-bottom: #334155;

  /* Accents */
  --accent-green: #34D399;
  --accent-red: #EF4444;
  --accent-gold: #FFD700;
  --timer-gold: #FFE55C;

  /* Ocean */
  --ocean-deep: #04588E;
  --ocean-bright: #0C82C7;
  --ocean-dark: #02365F;

  /* Rope/Bridge */
  --rope-light: #D4B896;
  --rope-mid: #C4A484;
  --rope-dark: #A07855;

  /* UI */
  --glass-bg: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-bg-hover: rgba(255, 255, 255, 0.10);
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: linear-gradient(170deg, var(--night-top) 0%, var(--night-mid) 40%, var(--ocean-dark) 100%);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ===== ANIMATED BG PARTICLES ===== */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background:
    radial-gradient(2px 2px at 20% 30%, rgba(255,255,255,0.15), transparent),
    radial-gradient(2px 2px at 40% 70%, rgba(255,255,255,0.1), transparent),
    radial-gradient(1px 1px at 60% 20%, rgba(255,255,255,0.12), transparent),
    radial-gradient(1px 1px at 80% 50%, rgba(255,255,255,0.08), transparent),
    radial-gradient(2px 2px at 10% 80%, rgba(255,255,255,0.1), transparent),
    radial-gradient(1px 1px at 70% 90%, rgba(255,255,255,0.07), transparent),
    radial-gradient(1.5px 1.5px at 90% 10%, rgba(255,255,255,0.11), transparent),
    radial-gradient(1px 1px at 50% 50%, rgba(255,255,255,0.06), transparent);
  pointer-events: none;
  z-index: 0;
  animation: twinkle 8s ease-in-out infinite alternate;
}

@keyframes twinkle {
  0% { opacity: 0.5; }
  100% { opacity: 1; }
}

/* ===== LAYOUT ===== */
.page-wrapper {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
  padding: 40px 24px 60px;
}

/* ===== HEADER ===== */
.site-header {
  text-align: center;
  padding: 60px 0 40px;
}

.app-icon {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-lg);
  box-shadow:
    0 8px 32px rgba(96, 165, 250, 0.3),
    0 0 60px rgba(96, 165, 250, 0.15);
  margin-bottom: 24px;
  animation: float 4s ease-in-out infinite;
  border: 2px solid var(--glass-border);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.app-title {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--sky-top), var(--accent-gold), var(--sky-mid));
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 4s ease-in-out infinite;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

@keyframes shimmer {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.app-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.developer-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  padding: 6px 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 100px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* ===== NAV ===== */
.site-nav {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.nav-link {
  padding: 10px 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 100px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.3s ease;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-link:hover,
.nav-link.active {
  background: rgba(96, 165, 250, 0.15);
  border-color: rgba(96, 165, 250, 0.3);
  color: var(--sky-top);
  transform: translateY(-1px);
}

/* ===== CARDS ===== */
.card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 24px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: all 0.3s ease;
}

.card:hover {
  background: var(--glass-bg-hover);
  border-color: rgba(255, 255, 255, 0.18);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 12px;
  display: block;
}

.card h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-primary);
}

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

.card ul {
  list-style: none;
  padding: 0;
}

.card ul li {
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.card ul li:last-child {
  border-bottom: none;
}

.card ul li::before {
  content: '›';
  color: var(--sky-top);
  font-weight: 700;
  font-size: 1.2rem;
  line-height: 1.5;
  flex-shrink: 0;
}

/* ===== CONTACT CARD ===== */
.contact-card {
  background: linear-gradient(135deg, rgba(96, 165, 250, 0.08), rgba(52, 211, 153, 0.05));
  border-color: rgba(96, 165, 250, 0.2);
}

.contact-email {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: linear-gradient(135deg, var(--sky-top), var(--ocean-bright));
  color: white;
  text-decoration: none;
  border-radius: 100px;
  font-weight: 600;
  font-size: 1rem;
  margin-top: 16px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(96, 165, 250, 0.3);
}

.contact-email:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 24px rgba(96, 165, 250, 0.4);
}

/* ===== FEATURES GRID ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.feature-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  transition: all 0.3s ease;
}

.feature-item:hover {
  background: rgba(255, 255, 255, 0.06);
  transform: translateY(-2px);
}

.feature-item .emoji {
  font-size: 2rem;
  display: block;
  margin-bottom: 8px;
}

.feature-item .label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ===== FAQ ===== */
.faq-item {
  padding: 20px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.faq-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.faq-item h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.faq-item h3::before {
  content: '?';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: rgba(96, 165, 250, 0.15);
  color: var(--sky-top);
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 800;
  flex-shrink: 0;
}

.faq-item p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  padding-left: 32px;
}

/* ===== FOOTER ===== */
.site-footer {
  text-align: center;
  padding: 48px 0 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  margin-top: 48px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.3s ease;
}

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

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== PRIVACY PAGE ===== */
.privacy-section {
  margin-bottom: 32px;
}

.privacy-section h2 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.privacy-section p,
.privacy-section li {
  color: var(--text-secondary);
  font-size: 0.93rem;
  margin-bottom: 10px;
}

.privacy-section ul {
  list-style: none;
  padding-left: 0;
}

.privacy-section ul li::before {
  content: '•';
  color: var(--sky-top);
  font-weight: 700;
  margin-right: 8px;
}

.last-updated {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.2);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--accent-green);
  margin-bottom: 24px;
}

/* ===== BADGE ROW ===== */
.badge-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid;
}

.badge--green {
  background: rgba(52, 211, 153, 0.1);
  border-color: rgba(52, 211, 153, 0.2);
  color: var(--accent-green);
}

.badge--blue {
  background: rgba(96, 165, 250, 0.1);
  border-color: rgba(96, 165, 250, 0.2);
  color: var(--sky-top);
}

.badge--gold {
  background: rgba(255, 215, 0, 0.1);
  border-color: rgba(255, 215, 0, 0.2);
  color: var(--accent-gold);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
  .page-wrapper {
    padding: 24px 16px 40px;
  }

  .site-header {
    padding: 40px 0 24px;
  }

  .app-icon {
    width: 88px;
    height: 88px;
  }

  .app-title {
    font-size: 1.8rem;
  }

  .card {
    padding: 24px 20px;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .site-nav {
    gap: 6px;
  }

  .nav-link {
    padding: 8px 14px;
    font-size: 0.82rem;
  }
}