/* ==========================================================================
   NEXUS CLOUD PC - Main Design System & Tokens
   ========================================================================== */

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

:root {
  /* Color Palette - Cyber Space & High Performance */
  --bg-primary: #080c14;
  --bg-secondary: #0e1422;
  --bg-tertiary: #161e31;
  --bg-card: rgba(18, 26, 43, 0.75);
  --bg-card-hover: rgba(26, 37, 61, 0.85);
  --bg-glass: rgba(14, 20, 34, 0.65);
  --bg-glass-heavy: rgba(10, 15, 26, 0.88);

  /* Borders & Dividers */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.15);
  --border-active: rgba(0, 210, 255, 0.4);
  --border-glow: rgba(0, 210, 255, 0.25);

  /* Primary Accent - Cyan / Electric Blue */
  --accent-cyan: #00d2ff;
  --accent-cyan-hover: #33dcff;
  --accent-cyan-rgb: 0, 210, 255;
  --accent-blue: #2563eb;
  --accent-indigo: #4f46e5;
  
  /* Status Colors */
  --color-success: #10b981;
  --color-success-bg: rgba(16, 185, 129, 0.12);
  --color-warning: #f59e0b;
  --color-warning-bg: rgba(245, 158, 11, 0.12);
  --color-danger: #ef4444;
  --color-danger-bg: rgba(239, 68, 68, 0.12);
  --color-info: #0ea5e9;

  /* Typography Colors */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #030712;

  /* Typography Families */
  --font-main: 'Plus Jakarta Sans', 'Prompt', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Shadows & Elevations */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.55);
  --shadow-cyan: 0 0 24px rgba(0, 210, 255, 0.22);
  --shadow-success: 0 0 16px rgba(16, 185, 129, 0.25);

  /* Radii */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-pill: 9999px;

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Global */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Background Atmosphere */
body::before {
  content: '';
  position: fixed;
  top: -20vh;
  left: 20%;
  width: 60vw;
  height: 60vh;
  background: radial-gradient(circle, rgba(0, 210, 255, 0.06) 0%, rgba(37, 99, 235, 0.03) 50%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  bottom: -10vh;
  right: 10%;
  width: 50vw;
  height: 50vh;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.05) 0%, transparent 65%);
  filter: blur(90px);
  pointer-events: none;
  z-index: 0;
}

/* Base Container & Grid */
.app-container {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  padding-bottom: 4rem;
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* View Sections Routing Control */
.view-section {
  display: none;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--transition-smooth), transform var(--transition-smooth);
}

.view-section.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* Typography Utilities */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 4.5vw, 3.4rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.6rem); }
h4 { font-size: 1.15rem; }

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

.text-gradient-cyan {
  background: linear-gradient(135deg, #00d2ff 0%, #3b82f6 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;
}

.mono {
  font-family: var(--font-mono);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--border-medium);
  border-radius: var(--radius-pill);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
}