/* ==========================================================================
   AI MASTER PRO — DESIGN SYSTEM (QUANTUM TECH: ELECTRIC COBALT & ULTRAVIOLET)
   Modern, Crisp Light Precision Theme with Cobalt & Violet Accents
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@500;600;700;800;900&family=Space+Grotesk:wght@500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  /* Color Tokens - Quantum Tech */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #eff6ff;
  --bg-card: #ffffff;
  --bg-card-hover: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.9);
  --bg-glass-heavy: rgba(255, 255, 255, 0.98);
  
  /* Borders */
  --border-subtle: #e2e8f0;
  --border-medium: #cbd5e1;
  --border-accent: rgba(37, 99, 235, 0.3);
  --border-glow: rgba(124, 58, 237, 0.5);
  
  /* Brand Neons & Gradients (Cobalt Blue & Ultraviolet) */
  --neon-purple: #2563eb;
  --neon-violet: #7c3aed;
  --neon-pink: #ec4899;
  --neon-cyan: #0284c7;
  --neon-emerald: #10b981;
  --neon-amber: #f59e0b;
  --neon-orange: #ea580c;
  
  --grad-primary: linear-gradient(135deg, #2563eb 0%, #7c3aed 50%, #06b6d4 100%);
  --grad-accent: linear-gradient(135deg, #1d4ed8 0%, #6366f1 100%);
  --grad-gold: linear-gradient(135deg, #d97706 0%, #f59e0b 100%);
  --grad-emerald: linear-gradient(135deg, #059669 0%, #10b981 100%);
  
  /* Text Colors */
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-dim: #94a3b8;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Plus Jakarta Sans', var(--font-sans);
  --font-heading: 'Space Grotesk', var(--font-sans);
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px 0 rgba(37, 99, 235, 0.05);
  --shadow-card: 0 10px 30px -5px rgba(37, 99, 235, 0.06), 0 4px 6px -2px rgba(15, 23, 42, 0.02);
  --shadow-card-hover: 0 20px 40px -10px rgba(37, 99, 235, 0.18), 0 8px 16px -4px rgba(15, 23, 42, 0.06);
  --shadow-popup: 0 25px 50px -12px rgba(15, 23, 42, 0.2);
  --glow-purple: 0 10px 25px rgba(37, 99, 235, 0.35);
  --glow-purple-lg: 0 20px 50px rgba(124, 58, 237, 0.2);
  
  /* Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 9999px;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ==========================================================================
   RESET & GLOBAL BASE
   ========================================================================== */

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

html {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  line-height: 1.6;
  background: var(--bg-primary);
  background-image: 
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(37, 99, 235, 0.1), transparent),
    radial-gradient(ellipse 60% 40% at 90% 50%, rgba(124, 58, 237, 0.06), transparent),
    radial-gradient(ellipse 60% 40% at 10% 70%, rgba(6, 182, 212, 0.05), transparent);
}

/* Precision Tech Background Grid */
.bg-grid-overlay {
  position: fixed;
  inset: 0;
  background-size: 40px 40px;
  background-image: 
    linear-gradient(to right, rgba(37, 99, 235, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(37, 99, 235, 0.03) 1px, transparent 1px);
  pointer-events: none;
  z-index: 0;
}

#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.content-wrapper {
  position: relative;
  z-index: 2;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

p {
  color: var(--text-secondary);
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-fast);
}

button {
  font-family: var(--font-sans);
  cursor: pointer;
  border: none;
  outline: none;
  background: none;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

.gradient-text {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.gradient-text-cyan {
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.gradient-text-gold {
  background: var(--grad-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-smooth), border-color var(--transition-smooth), box-shadow var(--transition-smooth);
}

.glass-card:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-card-hover);
}

/* Badge System */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: #eff6ff;
  border: 1px solid #dbeafe;
  color: #1d4ed8;
}

.badge-cyan {
  background: #e0f2fe;
  border-color: #bae6fd;
  color: #0369a1;
}

.badge-gold {
  background: #fef3c7;
  border-color: #fde68a;
  color: #b45309;
}

.badge-emerald {
  background: #d1fae5;
  border-color: #a7f3d0;
  color: #047857;
}

.badge-pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #2563eb;
  position: relative;
}

.badge-pulse-dot::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: inherit;
  animation: pulse-ring 1.8s cubic-bezier(0.24, 0, 0.38, 1) infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.8); opacity: 0.9; }
  100% { transform: scale(2.4); opacity: 0; }
}

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 36px;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: #ffffff;
  background: var(--grad-primary);
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.35);
  position: relative;
  overflow: hidden;
  transition: var(--transition-bounce);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px rgba(37, 99, 235, 0.45);
  opacity: 0.98;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 32px;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-smooth);
}

.btn-secondary:hover {
  background: #eff6ff;
  border-color: var(--border-medium);
  transform: translateY(-2px);
}

.btn-glow {
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.35);
}

.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 60px;
}

.section-title {
  font-size: clamp(32px, 5vw, 48px);
  margin-top: 14px;
  margin-bottom: 18px;
  color: #0f172a;
}

.section-subtitle {
  font-size: clamp(16px, 2vw, 18px);
  color: var(--text-secondary);
  line-height: 1.7;
}

@keyframes glow-pulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}