/* Main CSS - Gold, Black, White Theme */
:root {
    /* Color Palette */
    --primary-gold: #D4AF37;
    --gold-light: #F0E68C;
    --gold-dark: #B8860B;
    --black: #000000;
    --white: #FFFFFF;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-500: #6B7280;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    
    /* Brand Colors */
    --primary: var(--primary-gold);
    --secondary: var(--gray-800);
    --accent: var(--gold-dark);
    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;
    --info: #3B82F6;
    
    /* Backgrounds */
    --bg-primary: var(--white);
    --bg-secondary: var(--gray-50);
    --bg-card: var(--white);
    --bg-hero: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    
    /* Text */
    --text-primary: var(--black);
    --text-secondary: var(--gray-700);
    --text-muted: var(--gray-600);
    --text-light: var(--white);
    
    /* Borders */
    --border-color: var(--gray-200);
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    
    /* 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);
    --shadow-gold: 0 4px 20px rgba(212, 175, 55, 0.3);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* ADDED: Additional Variables for Video Components */
    --bg-alt: var(--gray-50);
    --border-dark: #334155;
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    
    /* ADDED: Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: var(--gray-900);
        --bg-secondary: var(--gray-800);
        --bg-card: var(--gray-800);
        --bg-alt: var(--gray-800);
        --text-primary: var(--white);
        --text-secondary: var(--gray-300);
        --text-muted: var(--gray-400);
        --border-color: var(--gray-700);
        --border-dark: var(--gray-600);
        
        /* Dark mode hero background */
        --bg-hero: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
    }
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.6;
    padding-top: 108px; /* GSE feed (48px) + Header (60px) */
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 3rem;
    font-weight: 800;
}

h2 {
    font-size: 2.25rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
    font-weight: 600;
}

h5 {
    font-size: 1.125rem;
    font-weight: 600;
}

h6 {
    font-size: 1rem;
    font-weight: 600;
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

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

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

/* Lists */
ul, ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

li {
    margin-bottom: var(--spacing-xs);
}

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

/* Utility Classes */

/* Text Alignment */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

/* Margin Top */
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }
.mt-5 { margin-top: var(--spacing-2xl); }

/* Margin Bottom */
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }
.mb-5 { margin-bottom: var(--spacing-2xl); }

/* Padding */
.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }
.p-4 { padding: var(--spacing-xl); }
.p-5 { padding: var(--spacing-2xl); }

/* Display */
.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }
.d-flex { display: flex; }
.d-inline-flex { display: inline-flex; }
.d-none { display: none; }

/* Flexbox */
.flex-column { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }
.align-items-center { align-items: center; }
.align-items-start { align-items: flex-start; }
.align-items-end { align-items: flex-end; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.justify-content-around { justify-content: space-around; }
.justify-content-start { justify-content: flex-start; }
.justify-content-end { justify-content: flex-end; }

/* Gradient Text */
.gradient-text {
    background: linear-gradient(135deg, var(--primary-gold), var(--gold-dark));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

/* Primary Color */
.primary-text {
    color: var(--primary);
}

/* Sections */
.section {
    padding: var(--spacing-2xl) 0;
}

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

.section-lg {
    padding: calc(var(--spacing-2xl) * 2) 0;
}

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

.bg-dark {
    background-color: var(--gray-900);
    color: var(--text-light);
}

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

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Page Layout */
.main-content {
    min-height: calc(100vh - 400px); /* Adjust based on your footer height */
}

.page-hero {
    padding: var(--spacing-2xl) 0;
    background: var(--bg-hero);
}

.page-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.page-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
}

/* Animation Classes */
.fade-in {
    animation: fadeIn var(--transition-normal) ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-in-left {
    animation: slideInLeft var(--transition-normal) ease-out;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slideInRight var(--transition-normal) ease-out;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    h1 { 
        font-size: 2.25rem; 
    }
    
    h2 { 
        font-size: 1.875rem; 
    }
    
    h3 { 
        font-size: 1.25rem; 
    }
    
    .page-title {
        font-size: 2.25rem;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .section-lg {
        padding: var(--spacing-xl) 0;
    }
    
    body {
        padding-top: 120px;
    }
}

@media (max-width: 480px) {
    h1 { 
        font-size: 1.875rem; 
    }
    
    h2 { 
        font-size: 1.5rem; 
    }
    
    .page-title {
        font-size: 1.875rem;
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    body {
        padding-top: 130px;
    }
}

/* Print Styles */
@media print {
    body {
        background: white;
        color: black;
        font-size: 12pt;
    }
    
    a {
        color: black;
        text-decoration: underline;
    }
    
    .no-print {
        display: none !important;
    }
}