/* ==========================================================================
   GEARBOX GIANTS - MODERN DESIGN SYSTEM & CORE STYLES
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:ital,wght@0,500;0,600;0,700;0,800;0,900;1,700;1,800&family=Oswald:wght@500;600;700;800&family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&family=JetBrains+Mono:wght@500;700&display=swap');

:root {
  /* Color Palette */
  --bg-darkest: #07090e;
  --bg-dark: #0d1117;
  --bg-card: rgba(16, 22, 31, 0.85);
  --bg-card-hover: rgba(22, 30, 43, 0.95);
  --bg-glass: rgba(13, 17, 23, 0.7);
  --bg-surface: #151c27;
  --bg-surface-elevated: #1e2736;
  
  /* Primary Accents (Industrial Amber & Gold) */
  --amber-400: #fbbf24;
  --amber-500: #f59e0b;
  --amber-600: #d97706;
  --amber-glow: rgba(245, 158, 11, 0.25);
  --amber-glow-strong: rgba(245, 158, 11, 0.45);

  /* Secondary Accents (Precision Mechanical Cyan) */
  --cyan-400: #38bdf8;
  --cyan-500: #0ea5e9;
  --cyan-600: #0284c7;
  --cyan-glow: rgba(14, 165, 233, 0.2);

  /* Functional Status */
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;

  /* Typography Colors */
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #8492a6;
  --text-inverse: #07090e;

  /* Borders & Dividers */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.15);
  --border-amber: rgba(245, 158, 11, 0.4);
  --border-cyan: rgba(14, 165, 233, 0.35);

  /* Typography Scale */
  --font-heading: 'Barlow Condensed', 'Oswald', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Barlow Condensed', 'Oswald', sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --container-max: 1280px;
  --nav-height: 80px;
  --border-radius-sm: 8px;
  --border-radius-md: 14px;
  --border-radius-lg: 20px;
  --border-radius-xl: 30px;
  --border-radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 35px var(--amber-glow);
  --shadow-glow-cyan: 0 0 35px var(--cyan-glow);

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-darkest);
  color: var(--text-primary);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background: 
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(245, 158, 11, 0.12), transparent 70%),
    radial-gradient(ellipse 60% 40% at 100% 50%, rgba(14, 165, 233, 0.06), transparent 60%),
    radial-gradient(ellipse 50% 50% at 0% 80%, rgba(245, 158, 11, 0.05), transparent 50%),
    var(--bg-darkest);
  background-attachment: fixed;
}

::selection {
  background-color: var(--amber-500);
  color: var(--text-inverse);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-darkest);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-surface-elevated);
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--amber-600);
}

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

img, svg {
  display: block;
  max-width: 100%;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  background: none;
  outline: none;
}

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 900;
  line-height: 1.02;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.01em;
}

h1 {
  font-size: clamp(2.8rem, 6vw, 4.75rem);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.01em;
}

h2 {
  font-size: clamp(2.2rem, 4.5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 900;
  line-height: 1.08;
}

h4 {
  font-size: 1.3rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--amber-400);
}

p {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text-secondary);
}

.text-gradient-amber {
  background: linear-gradient(135deg, #ffffff 20%, var(--amber-400) 90%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-cyan {
  background: linear-gradient(135deg, #ffffff 20%, var(--cyan-400) 90%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.highlight-amber, .text-amber, h1 span.highlight, h2 span.highlight, h3 span.highlight {
  color: var(--amber-400) !important;
}

/* ==========================================================================
   LAYOUT CONTAINERS
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section {
  padding: 6rem 0;
  position: relative;
}

.section-header {
  text-align: left;
  max-width: 860px;
  margin: 0 0 3.5rem 0;
}

.section-tag, .section-header .section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1.1rem;
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid var(--border-amber);
  border-radius: var(--border-radius-full);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--amber-400);
  margin-bottom: 1.25rem;
}

.section-header h2 {
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.15rem;
  color: var(--text-secondary);
}

/* Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

@media (max-width: 1024px) {
  .grid-3, .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .section {
    padding: 4rem 0;
  }
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}