/* SENTINEL Design System & Core Styles */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Manrope:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg-primary: #05070B;
  --bg-secondary: #0A0F18;
  --bg-card: #0D1420;
  --bg-card-elevated: #111A28;
  --bg-card-hover: #162235;
  
  --accent-primary: #6366F1;
  --accent-secondary: #06B6D4;
  --accent-ai: #8B5CF6;
  --accent-voice: #22D3EE;
  
  --status-success: #10B981;
  --status-warning: #F59E0B;
  --status-danger: #EF4444;
  
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(99, 102, 241, 0.25);
  --border-cyan: rgba(6, 182, 212, 0.25);
  --border-purple: rgba(139, 92, 246, 0.25);
  
  --glow-indigo: rgba(99, 102, 241, 0.15);
  --glow-cyan: rgba(6, 182, 212, 0.15);
  --glow-purple: rgba(139, 92, 246, 0.15);

  --font-display: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Subtle futuristic background grid and ambient lighting */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(99, 102, 241, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 25%, rgba(6, 182, 212, 0.07) 0%, transparent 45%),
    radial-gradient(circle at 50% 80%, rgba(139, 92, 246, 0.06) 0%, transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 64px 64px, 64px 64px;
  pointer-events: none;
  z-index: 0;
}

/* Typography styles */
h1, h2, h3, h4, h5, h6, .font-display {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.hero-headline {
  font-size: clamp(2.3rem, 5.5vw, 5.25rem);
  line-height: 1.04;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.section-headline {
  font-size: clamp(1.85rem, 3.5vw, 3rem);
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.035em;
}

.text-gradient-indigo {
  background: linear-gradient(135deg, #FFFFFF 20%, #A5B4FC 60%, #6366F1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-cyan {
  background: linear-gradient(135deg, #E0F2FE 10%, #38BDF8 60%, #06B6D4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-purple {
  background: linear-gradient(135deg, #F5F3FF 10%, #C084FC 60%, #8B5CF6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-voice {
  background: linear-gradient(135deg, #FFFFFF 0%, #22D3EE 50%, #6366F1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Glassmorphism & Cards */
.glass-header {
  background: rgba(5, 7, 11, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all 0.35s ease;
}

.glass-header.scrolled {
  background: rgba(5, 7, 11, 0.92);
  border-bottom-color: rgba(99, 102, 241, 0.2);
  box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.7);
}

.desktop-nav-more summary::-webkit-details-marker {
  display: none;
}

.desktop-nav-more summary {
  color: inherit;
}

.desktop-nav-more[open] summary i {
  transform: rotate(180deg);
}

.desktop-nav-more summary i {
  transition: transform 0.2s ease;
}

.command-center-agent-card.active {
  position: relative;
}

.command-center-agent-card.active::before {
  content: '';
  position: absolute;
  left: -1px;
  top: 0.75rem;
  bottom: 0.75rem;
  width: 3px;
  border-radius: 9999px;
  background: linear-gradient(180deg, #22D3EE, #818CF8);
  box-shadow: 0 0 12px rgba(34, 211, 238, 0.7);
}

.card-sentinel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.card-sentinel:hover {
  transform: translateY(-3px);
  border-color: rgba(99, 102, 241, 0.35);
  box-shadow: 0 16px 36px -12px rgba(0, 0, 0, 0.6), 0 0 24px -6px var(--glow-indigo);
}

.card-elevated {
  background: var(--bg-card-elevated);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
}

/* Buttons */
.btn-sentinel-primary {
  background: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%);
  color: #FFFFFF;
  font-weight: 600;
  border-radius: 9999px;
  padding: 0.85rem 1.8rem;
  font-size: 0.95rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 20px -2px rgba(99, 102, 241, 0.4);
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-decoration: none;
}

.btn-sentinel-primary:hover {
  background: linear-gradient(135deg, #7579F4 0%, #5B52E8 100%);
  color: #FFFFFF;
  box-shadow: 0 6px 28px 0 rgba(99, 102, 241, 0.6);
  transform: translateY(-1px);
}

.btn-sentinel-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: #F8FAFC;
  font-weight: 600;
  border-radius: 9999px;
  padding: 0.85rem 1.8rem;
  font-size: 0.95rem;
  border: 1px solid var(--border-subtle);
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-decoration: none;
  backdrop-filter: blur(8px);
}

.btn-sentinel-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-1px);
}

.btn-sentinel-cyan {
  background: linear-gradient(135deg, #06B6D4 0%, #0891B2 100%);
  color: #FFFFFF;
  font-weight: 600;
  border-radius: 9999px;
  padding: 0.75rem 1.5rem;
  font-size: 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 18px -2px rgba(6, 182, 212, 0.35);
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.btn-sentinel-cyan:hover {
  background: linear-gradient(135deg, #22D3EE 0%, #06B6D4 100%);
  color: #FFFFFF;
  transform: translateY(-1px);
}

/* Badges & Tags */
.badge-sentinel {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.badge-indigo {
  background: rgba(99, 102, 241, 0.12);
  color: #A5B4FC;
  border: 1px solid rgba(99, 102, 241, 0.28);
}

.badge-cyan {
  background: rgba(6, 182, 212, 0.12);
  color: #38BDF8;
  border: 1px solid rgba(6, 182, 212, 0.28);
}

.badge-purple {
  background: rgba(139, 92, 246, 0.12);
  color: #C084FC;
  border: 1px solid rgba(139, 92, 246, 0.28);
}

.badge-emerald {
  background: rgba(16, 185, 129, 0.12);
  color: #34D399;
  border: 1px solid rgba(16, 185, 129, 0.28);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 7px;
  height: 7px;
}
::-webkit-scrollbar-track {
  background: #05070B;
}
::-webkit-scrollbar-thumb {
  background: #1E293B;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #334155;
}

/* Code & Telemetry Monospace Blocks */
.font-mono-code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

/* Equalizer Bars Generic System */
.equalizer-container {
  display: flex;
  align-items: center;
  gap: 3px;
  height: 32px;
}

.equalizer-bar {
  width: 3px;
  height: 100%;
  border-radius: 2px;
  background: var(--accent-primary);
  transform-origin: bottom center;
  transition: background-color 0.4s ease;
}

/* Status Indicator Dot */
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  position: relative;
}

.status-dot::after {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  border-radius: 50%;
  border: 1.5px solid currentColor;
  opacity: 0.6;
  animation: pingDot 1.8s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes pingDot {
  75%, 100% {
    transform: scale(2.2);
    opacity: 0;
  }
}