/* ================= COMMON CSS VARIABLES ================= */
/* Professional College Theme: Navy Blue (#0A2540), White (#FFFFFF), Light Gold Accent (#D4AF37) */
:root {
    /* Primary Colors - Navy Blue Theme */
    --primary: #0A2540;
    --primary-dark: #061829;
    --primary-light: #143a5e;
    --primary-medium: #0d3251;
    
    /* Accent Colors - Light Gold */
    --accent: #D4AF37;
    --accent-light: #e5c565;
    --accent-dark: #b8962e;
    
    /* Additional Colors */
    --blue: #0077ff;
    --blue-light: #3395ff;
    --text: #333333;
    --text-light: #666666;
    --text-muted: #888888;
    --bg: #f4f6f9;
    --bg-light: #f8fafc;
    --white: #ffffff;
    
    /* Shadows - Enhanced for depth */
    --shadow-xs: 0 1px 3px rgba(10, 37, 64, 0.08);
    --shadow-sm: 0 2px 8px rgba(10, 37, 64, 0.1);
    --shadow-md: 0 8px 25px rgba(10, 37, 64, 0.12);
    --shadow-lg: 0 15px 40px rgba(10, 37, 64, 0.15);
    --shadow-xl: 0 20px 50px rgba(10, 37, 64, 0.18);
    
    /* Gold glow effect */
    --glow-gold: 0 0 20px rgba(212, 175, 55, 0.3);
    
    /* Transitions - Smooth 0.3s-0.5s */
    --transition-fast: all 0.2s ease;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ================= GLOBAL RESET ================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--white);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* ================= COMMON UTILITIES ================= */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 60px 0;
}

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

/* ================= BUTTON STYLES ================= */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 8px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    color: var(--primary);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-light), #f0d78a);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md), var(--glow-gold);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: var(--white);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ================= CARD STYLES ================= */
.card {
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
}

/* ================= BREADCRUMB ================= */
.breadcrumb-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    padding: 12px 0;
}

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 14px;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

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

.breadcrumb .separator {
    color: rgba(255, 255, 255, 0.5);
    font-size: 10px;
}

.breadcrumb .current {
    color: var(--white);
    font-weight: 500;
}

/* ================= BREADCRUMB (DEPARTMENT PAGES) ================= */
.breadcrumb-nav {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    padding: 12px 0;
}

.breadcrumb-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    flex-wrap: wrap;
}

.breadcrumb-container a {
    color: rgba(255,255,255,0.8);
    transition: var(--transition);
}

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

.breadcrumb-container .separator {
    color: rgba(255,255,255,0.5);
}

.breadcrumb-container .current {
    color: var(--white);
    font-weight: 500;
}

/* ================= PAGE TITLE ================= */
.page-title-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 50%, var(--primary) 100%);
    padding: 50px 0 60px;
    border-bottom: 3px solid var(--accent);
}

.page-title-section h1 {
    font-size: 36px;
    color: var(--white);
    font-weight: 700;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.page-title-section p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
}

/* ================= FOOTER ================= */
footer {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: var(--white);
    padding: 30px 20px;
    text-align: center;
    border-top: 3px solid var(--accent);
}

footer p {
    font-size: 14px;
    margin-bottom: 10px;
    opacity: 0.9;
}

.developer-credit {
    margin-top: 10px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.credit-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
}

.credit-label i {
    color: var(--accent);
}

footer .developer-credit .developer-trigger {
    background: linear-gradient(135deg, var(--accent), var(--accent-light));
    border-color: var(--accent);
    color: var(--primary);
    font-weight: 700;
    transition: var(--transition);
}

footer .developer-credit .developer-trigger:hover,
footer .developer-credit .developer-trigger:focus-visible {
    background: linear-gradient(135deg, var(--accent-light), #f0d78a);
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--glow-gold);
}

.dev-popup {
    font-size: 12px !important;
    opacity: 0.7 !important;
    margin-bottom: 15px !important;
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 15px;
}

.social-icons a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.social-icons a:hover {
    background: var(--accent);
    color: var(--primary);
    transform: translateY(-3px);
    box-shadow: var(--glow-gold);
    border-color: var(--accent);
}

/* ================= RESPONSIVE ================= */
@media (max-width: 992px) {
    .section-padding {
        padding: 40px 0;
    }
    
    .page-title-section h1 {
        font-size: 28px;
    }
}

@media (max-width: 768px) {
    .section-padding {
        padding: 30px 0;
    }
    
    .page-title-section h1 {
        font-size: 24px;
    }
    
    .page-title-section p {
        font-size: 14px;
    }
}

@media (max-width: 576px) {
    .breadcrumb {
        font-size: 12px;
    }
}