/**
 * CSS Custom Properties (Variables)
 * Charuchandra College Website
 * 
 * This file contains all the CSS custom properties used throughout the website.
 * Centralized variables make it easy to maintain consistent design and theming.
 */

:root {
    /* Primary Color Palette */
    --primary-color: #050C9C;
    --secondary-color: #3572EF;
    --accent-color: #3ABEF9;
    --light-accent: #A7E6FF;
    
    /* Text Colors */
    --text-dark: #1f2937;
    --text-light: #6b7280;
    
    /* Background Colors */
    --bg-light: #f8fafc;
    --white: #ffffff;
    
    /* Special Colors */
    --gold-accent: #3ABEF9;
    --navy-deep: #050C9C;
    --yellow-hover: #FFD700;
    --yellow-light: #FFF8DC;
    
    /* Flash News Colors */
    --flash-news-bg: #050C9C;
    --flash-news-accent: #A7E6FF;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-heading: 'Playfair Display', 'Georgia', serif;
    --font-quote: 'Crimson Text', 'Georgia', serif;
    --font-accent: 'Poppins', sans-serif;
    --font-body: 'Merriweather', 'Georgia', serif;
    
    /* Font Weights */
    --fw-light: 300;
    --fw-regular: 400;
    --fw-medium: 500;
    --fw-semibold: 600;
    --fw-bold: 700;
    --fw-extrabold: 800;
    --fw-black: 900;
    
    /* Line Heights */
    --lh-tight: 1.3;
    --lh-normal: 1.6;
    --lh-relaxed: 1.7;
    --lh-loose: 1.8;
    
    /* Letter Spacing */
    --ls-tight: -0.02em;
    --ls-normal: -0.01em;
    --ls-wide: 0.01em;
    --ls-wider: 0.5px;
    
    /* Spacing Scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 5rem;
    --space-5xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 20px;
    --radius-3xl: 25px;
    --radius-full: 50%;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 15px 35px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 60px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-bounce: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-sticky: 1010;
    --z-fixed: 1020;
    --z-modal-backdrop: 1030;
    --z-modal: 1040;
    --z-popover: 1050;
    --z-tooltip: 1060;
    
    /* Breakpoints (for reference in JS) */
    --bp-sm: 576px;
    --bp-md: 768px;
    --bp-lg: 992px;
    --bp-xl: 1200px;
    --bp-2xl: 1400px;
    
    /* Component Specific Variables */
    
    /* Header */
    --header-height: 80px;
    --header-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    
    /* Navigation */
    --nav-height: 60px;
    --nav-item-padding: 6px 10px;
    
    /* Cards */
    --card-padding: 25px;
    --card-radius: var(--radius-2xl);
    --card-shadow: var(--shadow-lg);
    --card-hover-shadow: var(--shadow-2xl);
    
    /* Buttons */
    --btn-padding: 12px 20px;
    --btn-radius: var(--radius-3xl);
    --btn-font-weight: var(--fw-semibold);
    
    /* Gallery */
    --gallery-item-height: 280px;
    --gallery-gap: 25px;
    
    /* Statistics */
    --stat-icon-size: 50px;
    --stat-card-padding: 25px 15px;
    
    /* Notice Board */
    --notice-card-height: 280px;
    --notice-header-height: 70px;
    
    /* Animation Durations */
    --anim-duration-fast: 0.2s;
    --anim-duration-normal: 0.3s;
    --anim-duration-slow: 0.5s;
    --anim-duration-slower: 0.8s;
    
    /* Hover Effects */
    --hover-transform: translateY(-2px);
    --hover-scale: scale(1.05);
    --hover-rotate: rotate(5deg);
}

/* Dark Mode Variables (for future implementation) */
@media (prefers-color-scheme: dark) {
    :root {
        --text-dark: #f9fafb;
        --text-light: #d1d5db;
        --bg-light: #1f2937;
        --white: #111827;
    }
}

/* Print Styles Variables */
@media print {
    :root {
        --shadow-sm: none;
        --shadow-md: none;
        --shadow-lg: none;
        --shadow-xl: none;
        --shadow-2xl: none;
    }
}