:root {
  --primary: #1A2B4C; 
  --primary-dark: #0f1a2e;
  --accent: #D4A843; 
  --accent-hover: #b8943a;
  --bg-primary: #F5F5F5; 
  --bg-secondary: #FFFFFF;
  --bg-card: #fff; 
  --text-primary: #1A2B4C; 
  --text-secondary: #666;
  --border-color: #E2E8F0;
  --font-heading: 'Montserrat', sans-serif; 
  --font-body: 'PT Sans', sans-serif;
  --shadow: 0 4px 20px rgba(26, 43, 76, 0.1);
  --shadow-hover: 0 8px 30px rgba(26, 43, 76, 0.15);
  --transition: all 0.3s ease;
}

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

*:focus {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  margin-bottom: 1.5rem;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  margin-bottom: 1rem;
}

h3 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

h4 {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
}

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

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

a:hover, a:focus {
  color: var(--accent-hover);
}

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

ul, ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -15px;
}

.col {
  padding: 0 15px;
  flex: 1;
}

.col-12 { width: 100%; }
.col-6 { width: 50%; }
.col-4 { width: 33.333%; }
.col-3 { width: 25%; }

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

.hidden { display: none !important; }
.visible { display: block !important; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 6px;
  background: var(--primary);
  color: white;
  padding: 8px;
  border-radius: 4px;
  z-index: 10000;
  transition: top 0.3s;
}

.skip-link:focus {
  top: 6px;
}

@media (max-width: 768px) {
  .col-6, .col-4, .col-3 {
    width: 100%;
    margin-bottom: 2rem;
  }
  
  .container {
    padding: 0 15px;
  }
  
  body {
    font-size: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #0f1419;
    --bg-secondary: #1a1f2e;
    --bg-card: #242936;
    --text-primary: #ffffff;
    --text-secondary: #b0b8c5;
    --border-color: #3a4553;
  }
}