/* ==========================================================================
   CSS Variables & Theming (Madan Mohan Portable Cabins)
   ========================================================================== */

:root {
  /* Brand Colors */
  --primary-blue: #009FE3;
  --primary-blue-hover: #0087C1;
  --dark-navy: #0F172A;
  --white: #FFFFFF;

  /* Light Theme Variables (Default) */
  --bg-main: #F8FAFC;
  --bg-secondary: #FFFFFF;
  --text-main: #0F172A;
  --text-muted: #475569;
  --border-color: #E2E8F0;
  --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --header-bg: rgba(255, 255, 255, 0.95);
  
  /* Typography */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

/* Dark Theme Variables */
[data-theme="dark"] {
  --bg-main: #0B1120;
  --bg-secondary: #0F172A;
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --border-color: #1E293B;
  --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
  --header-bg: rgba(15, 23, 42, 0.95);
}

/* ==========================================================================
   Base Styles & Reset
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-main);
  line-height: 1.2;
  margin-bottom: 1rem;
}

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

a:hover {
  color: var(--primary-blue-hover);
}

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

ul {
  list-style: none;
}

/* ==========================================================================
   Typography Utilities
   ========================================================================== */

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background-color: var(--primary-blue);
  border-radius: 2px;
}

.text-center { text-align: center; }
.text-primary { color: var(--primary-blue); }
.font-bold { font-weight: 700; }

/* ==========================================================================
   Layout Utilities
   ========================================================================== */

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

.section {
  padding: 5rem 0;
}

.bg-secondary {
  background-color: var(--bg-secondary);
}

.grid {
  display: grid;
  gap: 2rem;
}

.flex {
  display: flex;
}

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

.justify-between {
  justify-content: space-between;
}

.justify-center {
  justify-content: center;
}

.hidden {
  display: none !important;
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}