/* 
   VaniX AI - Institutional Indic Voice AI Showcase
   Design inspired by intellhubb.xyz (Dark Mode, High Trust, Ultra-sleek)
*/

:root {
  --bg-main: #070a11;
  --bg-surface: #0e1422;
  --bg-card: rgba(16, 24, 39, 0.75);
  --bg-card-hover: rgba(24, 34, 54, 0.9);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(56, 189, 248, 0.3);
  --border-emerald: rgba(52, 211, 153, 0.35);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-cyan: #38bdf8;
  --accent-emerald: #10b981;
  --accent-indigo: #6366f1;
  --accent-amber: #f59e0b;
  
  --glow-cyan: 0 0 25px rgba(56, 189, 248, 0.25);
  --glow-emerald: 0 0 30px rgba(16, 185, 129, 0.2);
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

/* Background Gradients & Grid Matrix */
body {
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(56, 189, 248, 0.12), transparent 70%),
    radial-gradient(ellipse 60% 40% at 85% 60%, rgba(99, 102, 241, 0.08), transparent 60%),
    radial-gradient(ellipse 50% 30% at 15% 40%, rgba(16, 185, 129, 0.06), transparent 50%);
  background-attachment: fixed;
  overflow-x: hidden;
  min-height: 100vh;
}

.ambient-grid {
  position: absolute;
  inset: 0;
  background-size: 40px 40px;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, black 40%, transparent 100%);
  pointer-events: none;
}

/* Glassmorphism Card System */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: 1rem;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.glass-panel:hover {
  border-color: rgba(255, 255, 255, 0.16);
  background: var(--bg-card-hover);
  box-shadow: 0 12px 32px -8px rgba(0, 0, 0, 0.5);
}

.glass-panel-interactive {
  position: relative;
  overflow: hidden;
}

.glass-panel-interactive::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(56, 189, 248, 0.4), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.glass-panel-interactive:hover::before {
  opacity: 1;
}

/* Glowing Badges & Tags */
.badge-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.775rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: #38bdf8;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: 9999px;
  backdrop-filter: blur(8px);
}

.badge-live-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #34d399;
  box-shadow: 0 0 10px #34d399;
  animation: pulse-dot 1.8s infinite cubic-bezier(0.4, 0, 0.6, 1);
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

/* Typography Gradient */
.text-gradient {
  background: linear-gradient(135deg, #ffffff 30%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-cyan {
  background: linear-gradient(135deg, #38bdf8 0%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-gold {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Interactive Soundwave Equalizer */
.waveform-container {
  position: relative;
  width: 100%;
  height: 90px;
  background: rgba(11, 17, 30, 0.8);
  border: 1px solid rgba(56, 189, 248, 0.15);
  border-radius: 0.75rem;
  overflow: hidden;
}

.equalizer-bar {
  width: 3px;
  background: linear-gradient(to top, #38bdf8, #818cf8);
  border-radius: 2px;
  transition: height 0.08s ease;
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.925rem;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 20px -2px rgba(37, 99, 235, 0.5);
  transition: all 0.2s ease;
  cursor: pointer;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0369a1 0%, #1d4ed8 100%);
  box-shadow: 0 6px 25px 0 rgba(37, 99, 235, 0.65);
  transform: translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.04);
  color: #e2e8f0;
  font-weight: 500;
  font-size: 0.925rem;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all 0.2s ease;
  cursor: pointer;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  color: #ffffff;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 7px;
  height: 7px;
}

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

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.28);
}

/* Live Simulation Audio Orb */
.audio-orb {
  position: relative;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #38bdf8, #1e40af);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 30px rgba(56, 189, 248, 0.4);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.audio-orb:hover {
  transform: scale(1.05);
  box-shadow: 0 0 45px rgba(56, 189, 248, 0.6);
}

.audio-orb.playing {
  animation: orb-breathe 2s infinite ease-in-out;
}

@keyframes orb-breathe {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 30px rgba(56, 189, 248, 0.4);
  }
  50% {
    transform: scale(1.12);
    box-shadow: 0 0 50px rgba(56, 189, 248, 0.8), 0 0 80px rgba(99, 102, 241, 0.4);
  }
}

/* Accordion Transition */
.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
  opacity: 0;
}

.faq-item.active .faq-content {
  max-height: 250px;
  opacity: 1;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

/* Modal Overlay */
.modal-overlay {
  background-color: rgba(3, 7, 18, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

/* Toast System */
#toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  background: #0f172a;
  color: #f8fafc;
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 0.85rem 1.25rem;
  border-radius: 0.75rem;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.6), 0 0 15px rgba(56, 189, 248, 0.2);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: toast-in 0.3s ease-out forwards;
}

@keyframes toast-in {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}