/* ============================================
   DIUWIN - Clean Professional CSS Framework
   Created: 2026-02-09
   Purpose: Replace WordPress/Elementor bloat
   Size: ~20KB vs 300KB+ WordPress CSS
   ============================================ */

/* === CSS VARIABLES === */
:root {
  /* Colors */
  --primary-color: #6369d1;
  --primary-dark: #5258ca;
  --primary-light: #8388e0;
  --secondary-color: #1d1f45;
  --accent-color: #66d7d1;
  --text-color: #3d3d4e;
  --text-light: #76778b;
  --bg-color: #f2f3fa;
  --bg-white: #ffffff;
  --border-color: #e7e7e7;
  
  /* Typography */
  --font-primary: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Mulish', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-xxl: 4rem;
  
  /* Layout */
  --container-width: 1200px;
  --border-radius: 8px;
  --transition: all 0.3s ease;
}

/* === RESET & BASE === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-primary);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text-color);
  background-color: var(--bg-color);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--secondary-color);
  margin-bottom: var(--spacing-sm);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: 1em;
}

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

a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

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

/* === LAYOUT === */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-xxl) 0;
}

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

/* === HEADER === */
.site-header {
  background-color: var(--bg-white);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--spacing-md);
  max-width: var(--container-width);
  margin: 0 auto;
}

.site-logo img {
  height: 40px;
  width: auto;
}

/* === NAVIGATION === */
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-menu a {
  color: var(--text-color);
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  transition: var(--transition);
}

.nav-menu a:hover {
  background-color: var(--bg-color);
  color: var(--primary-color);
  text-decoration: none;
}

.nav-menu .dropdown {
  position: relative;
}

.nav-menu .dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  min-width: 200px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  display: none;
  padding: var(--spacing-xs) 0;
  margin-top: var(--spacing-xs);
}

.nav-menu .dropdown:hover .dropdown-menu {
  display: block;
}

.dropdown-menu li {
  list-style: none;
}

.dropdown-menu a {
  display: block;
  padding: var(--spacing-sm);
  color: var(--text-color);
}

.dropdown-menu a:hover {
  background-color: var(--bg-color);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-color);
  cursor: pointer;
}

/* === BUTTONS === */
.btn {
  display: inline-block;
  padding: 14px 30px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9375rem;
  text-align: center;
  text-decoration: none;
  border-radius: var(--border-radius);
  border: 2px solid var(--primary-color);
  background-color: var(--primary-color);
  color: var(--bg-white);
  cursor: pointer;
  transition: var(--transition);
  text-transform: capitalize;
}

.btn:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  color: var(--bg-white);
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(99,105,209,0.3);
}

.btn-outline {
  background-color: transparent;
  color: var(--primary-color);
}

.btn-outline:hover {
  background-color: var(--primary-color);
  color: var(--bg-white);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.875rem;
}

.btn-group {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

/* === HERO SECTION === */
.hero {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--bg-white);
  padding: var(--spacing-xxl) 0;
  text-align: center;
}

.hero h1 {
  color: var(--bg-white);
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
  opacity: 0.9;
}

/* === CARDS === */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.card {
  background: var(--bg-white);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}

.card img {
  width: 100%;
  border-radius: var(--border-radius);
  margin-bottom: var(--spacing-md);
}

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

.card p {
  color: var(--text-light);
}

/* === BLOG POSTS === */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--spacing-lg);
}

.blog-post {
  background: var(--bg-white);
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
  transition: var(--transition);
}

.blog-post:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}

.blog-post img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.blog-post-content {
  padding: var(--spacing-lg);
}

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

.blog-post p {
  color: var(--text-light);
  margin-bottom: var(--spacing-md);
}

/* === FOOTER === */
.site-footer {
  background-color: var(--bg-white);
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
  margin-bottom: var(--spacing-md);
  color: var(--secondary-color);
}

.footer-section ul {
  list-style: none;
}

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

.footer-section a {
  color: var(--text-light);
  transition: var(--transition);
}

.footer-section a:hover {
  color: var(--primary-color);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
  color: var(--text-light);
  font-size: 0.875rem;
}

/* === UTILITIES === */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }

/* === RESPONSIVE DESIGN === */

/* Tablet */
@media (max-width: 768px) {
  :root {
    font-size: 14px;
  }
  
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  h3 { font-size: 1.5rem; }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .card-grid,
  .blog-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* Mobile */
@media (max-width: 640px) {
  .menu-toggle {
    display: block;
  }
  
  .main-nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-white);
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    transform: translateY(-100%);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
  }
  
  .main-nav.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  
  .nav-menu {
    flex-direction: column;
    width: 100%;
    gap: 0;
  }
  
  .nav-menu a {
    display: block;
    padding: var(--spacing-sm);
    width: 100%;
  }
  
  .nav-menu .dropdown-menu {
    position: static;
    box-shadow: none;
    border: none;
    margin-left: var(--spacing-md);
  }
  
  .btn-group {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
}

/* Print Styles */
@media print {
  .site-header,
  .site-footer,
  .menu-toggle,
  .btn {
    display: none;
  }
}