/* ==========================================
   DESIGN SYSTEM - Variables & Colors
   ========================================== */

:root {
  /* Color Palette - Professional Logistics Brand */
  --color-primary: #0f172a;
  --color-secondary: #1e293b;
  --color-accent: #1e40af;
  --color-accent-light: #3b82f6;
  --color-accent-dark: #1e3a8a;
  --color-highlight: #f97316;
  --color-white: #ffffff;
  --color-light-gray: #f1f5f9;
  --color-dark-gray: #6b7280;
  --color-medium-gray: #9ca3af;
  
  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-size-small: 0.875rem;
  --font-size-body: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.5rem;
  --font-size-4xl: 3.5rem;
  
  --font-weight-regular: 400;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  --line-height-tight: 1.3;
  --line-height-normal: 1.5;
  --line-height-loose: 1.8;
  --line-height-relaxed: 1.9;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;
  
  /* Border Radius */
  --border-radius-sm: 0.375rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 1rem;
  --border-radius-xl: 1.5rem;
  --border-radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-smooth: 0.3s ease;
  --transition-slow: 0.5s ease;
}

html {
  scroll-padding-top: 110px;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-primary);
  color: var(--color-white);
  line-height: var(--line-height-normal);
  overflow-x: hidden;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.max-width--md {
  max-width: 600px;
}

.max-width--lg {
  max-width: 900px;
}

.text--center {
  text-align: center;
}

.text--left {
  text-align: left;
}

.text--right {
  text-align: right;
}