/* Apple Narrative Dark Theme Custom Styles */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Noto+Sans+SC:wght@300;400;500;700;900&display=swap');

:root {
  --apple-bg: #000000;
  --apple-card-bg: rgba(22, 22, 24, 0.7);
  --apple-border: rgba(255, 255, 255, 0.1);
  --apple-glow: rgba(59, 130, 246, 0.15);
}

body {
  font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: #000000;
  color: #f5f5f7;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

/* Glassmorphism & Metallic Text */
.apple-glass {
  background: rgba(18, 18, 20, 0.65);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.apple-glass-card {
  background: linear-gradient(180deg, rgba(30, 30, 35, 0.6) 0%, rgba(15, 15, 18, 0.8) 100%);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.apple-glass-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-4px);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.7), 0 0 30px rgba(255, 255, 255, 0.05);
}

.text-gradient-metallic {
  background: linear-gradient(180deg, #FFFFFF 0%, #E2E8F0 40%, #94A3B8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-blue {
  background: linear-gradient(135deg, #60A5FA 0%, #3B82F6 50%, #1D4ED8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-gold {
  background: linear-gradient(135deg, #FDE047 0%, #EAB308 50%, #CA8A04 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Dynamic Ambient Glow */
.ambient-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #000000;
}
::-webkit-scrollbar-thumb {
  background: #27272a;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #3f3f46;
}

/* Spec Grid Border Divider */
.spec-border-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1px;
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1.5rem;
  overflow: hidden;
}

.spec-cell {
  background-color: #050507;
  padding: 2.5rem 2rem;
  transition: background-color 0.3s ease;
}
.spec-cell:hover {
  background-color: #0d0d12;
}

/* Accordion Animation */
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
}
.faq-item.active .faq-answer {
  max-height: 500px;
  transition: max-height 0.3s cubic-bezier(1, 0, 1, 0);
}
.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

/* Pulse Beacon */
@keyframes beacon {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.15); opacity: 1; box-shadow: 0 0 15px rgba(34, 197, 94, 0.8); }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.ping-beacon {
  animation: beacon 2s infinite ease-in-out;
}