/**
 * Koshtur Static Site - Simplified Design System
 */

:root {
  /* Primary Colors */
  --color-koshtur-amber: #ffb800;
  --color-deep-void: #0a0a0c;
  --color-surface: #1a1a1a;
  --color-surface-dark: #161618;

  /* Koshtur Gradient */
  --gradient-koshtur: linear-gradient(135deg, #0f3443 0%, #34e89e 100%);

  /* Functional Colors */
  --color-signal-green: #00e676;
  --color-alert-red: #ff3d00;
  --color-info-blue: #2979ff;

  /* Text Colors */
  --color-text-primary: #ffffff;
  --color-text-secondary: rgba(255, 255, 255, 0.7);
  --color-text-tertiary: rgba(255, 255, 255, 0.5);

  /* Borders */
  --color-border-subtle: rgba(255, 255, 255, 0.1);
  --color-border-medium: rgba(255, 255, 255, 0.2);

  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-base: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 40px;
  --spacing-3xl: 48px;

  /* Border Radius */
  --radius-small: 8px;
  --radius-medium: 12px;
  --radius-large: 16px;

  /* Shadows */
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-elevated: 0 4px 16px rgba(0, 0, 0, 0.12);

  /* Transitions */
  --transition-fast: 150ms ease-out;
  --transition-normal: 300ms ease-out;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--color-text-primary);
  background-color: var(--color-deep-void);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
}

a {
  color: #34e89e;
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover {
  color: var(--color-koshtur-amber);
}

/* Layout */
.container {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

/* Header */
.header {
  padding: var(--spacing-lg) 0;
  border-bottom: 1px solid var(--color-border-subtle);
  margin-bottom: var(--spacing-2xl);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.logo-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-koshtur);
  border-radius: var(--radius-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  color: white;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 700;
  background: var(--gradient-koshtur);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Navigation */
.nav {
  display: flex;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-base);
}

.nav a {
  color: var(--color-text-secondary);
  font-size: 14px;
}

.nav a:hover,
.nav a.active {
  color: var(--color-text-primary);
}

/* Hero Section */
.hero {
  text-align: center;
  padding: var(--spacing-3xl) 0;
}

.hero h1 {
  font-size: 48px;
  margin-bottom: var(--spacing-lg);
  background: var(--gradient-koshtur);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 18px;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
}

/* Cards */
.card {
  background: linear-gradient(135deg, var(--color-surface-dark) 0%, rgba(22, 22, 24, 0.85) 100%);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-large);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.card:hover {
  border-color: rgba(52, 232, 158, 0.3);
}

/* Content Sections */
.section {
  margin-bottom: var(--spacing-3xl);
}

.section h2 {
  font-size: 24px;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-primary);
}

.section h3 {
  font-size: 18px;
  margin: var(--spacing-xl) 0 var(--spacing-md);
  color: var(--color-text-primary);
}

.section p {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-base);
}

.section ul, .section ol {
  color: var(--color-text-secondary);
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-base);
}

.section li {
  margin-bottom: var(--spacing-sm);
}

/* Highlight Box */
.highlight-box {
  background: rgba(52, 232, 158, 0.1);
  border: 1px solid rgba(52, 232, 158, 0.3);
  border-radius: var(--radius-medium);
  padding: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

.highlight-box strong {
  color: #34e89e;
}

/* Footer */
.footer {
  border-top: 1px solid var(--color-border-subtle);
  padding: var(--spacing-xl) 0;
  margin-top: var(--spacing-3xl);
  text-align: center;
  color: var(--color-text-tertiary);
  font-size: 14px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-base);
}

/* Button */
.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--gradient-koshtur);
  color: white;
  font-weight: 600;
  border-radius: var(--radius-medium);
  transition: var(--transition-normal);
  border: none;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(52, 232, 158, 0.3);
  color: white;
}

/* Features Grid */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}

.feature {
  text-align: center;
  padding: var(--spacing-lg);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-md);
}

.feature h3 {
  margin-bottom: var(--spacing-sm);
}

.feature p {
  font-size: 14px;
}

/* Last Updated */
.last-updated {
  color: var(--color-text-tertiary);
  font-size: 12px;
  margin-bottom: var(--spacing-xl);
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .container {
    padding: var(--spacing-base);
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero p {
    font-size: 16px;
  }

  .nav {
    flex-wrap: wrap;
    gap: var(--spacing-md);
  }

  .features {
    grid-template-columns: 1fr;
  }
}