/* =========================================
   CSS Custom Properties & Reset
   ========================================= */
:root {
    /* Color Palette */
    --color-navy: #00205B; /* Deep Navy Default */
    --color-navy-dark: #001233;
    --color-gold: #C99700; /* Gold */
    --color-gold-light: #EBB61A;
    --color-white: #FFFFFF;
    --color-light: #F4F6F8;
    --color-gray: #6C757D;
    --color-dark: #212529;

    /* Typography */
    --font-primary: 'Inter', sans-serif;
    
    /* Spacing & Utilities */
    --transition-speed: 0.3s;
    --border-radius: 8px;
    --container-width: 1200px;
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 25px rgba(0, 0, 0, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--color-dark);
    line-height: 1.6;
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

/* Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-gold);
    color: var(--color-navy);
    padding: 8px;
    z-index: 10000;
    transition: top var(--transition-speed);
}
.skip-link:focus {
    top: 0;
}
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* =========================================
   Layout & Utilities
   ========================================= */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.bg-navy { background-color: var(--color-navy); }
.bg-light { background-color: var(--color-light); }
.text-white { color: var(--color-white); }
.text-center { text-align: center; }
.py-4 { padding: 40px 0; }
.py-8 { padding: 80px 0; }
.mt-2 { margin-top: 20px; }
.mt-4 { margin-top: 40px; }
.mb-3 { margin-bottom: 30px; }

.section-header {
    margin-bottom: 50px;
}
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: 15px;
}
.section-desc {
    font-size: 1.1rem;
    color: var(--color-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 4px; /* Squarer, more academic button */
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all var(--transition-speed);
    cursor: pointer;
    border: 2px solid transparent;
}
.btn-primary {
    background-color: var(--color-gold);
    color: var(--color-navy);
}
.btn-primary:hover {
    background-color: var(--color-gold-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}
.btn-secondary:hover {
    background-color: var(--color-white);
    color: var(--color-navy);
}
.btn-outline-navy {
    background-color: transparent;
    color: var(--color-navy);
    border-color: var(--color-navy);
}
.btn-outline-navy:hover {
    background-color: var(--color-navy);
    color: var(--color-white);
}

/* =========================================
   Header & Navigation
   ========================================= */
.site-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: background-color var(--transition-speed), box-shadow var(--transition-speed);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}
.site-header.scrolled {
    background-color: rgba(255, 255, 255, 1);
}

.utility-bar {
    background-color: var(--color-navy);
    color: var(--color-white);
    font-size: 0.85rem;
    padding: 8px 0;
}
.utility-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.utility-left a, .utility-right a {
    margin-right: 20px;
    opacity: 0.9;
}
.utility-left a:hover, .utility-right a:hover {
    color: var(--color-gold);
    opacity: 1;
}
.search-form {
    display: inline-flex;
    align-items: center;
    background: rgba(255,255,255,0.1);
    border-radius: 20px;
    padding: 2px 10px;
}
.search-form input {
    background: transparent;
    border: none;
    color: var(--color-white);
    outline: none;
    padding: 5px;
    font-size: 0.85rem;
    width: 120px;
    transition: width var(--transition-speed);
}
.search-form input:focus {
    width: 160px;
}
.search-form input::placeholder {
    color: rgba(255,255,255,0.7);
}
.search-form button {
    background: transparent;
    border: none;
    color: var(--color-white);
    cursor: pointer;
}

.main-nav .nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}
.logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-navy);
    letter-spacing: 1px;
}
.logo-subtext {
    display: block;
    font-size: 0.7rem;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-top: -5px;
}

.nav-links {
    display: flex;
    gap: 30px;
}
.nav-links a {
    font-weight: 600;
    color: var(--color-navy);
    position: relative;
    padding-bottom: 5px;
}
.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--color-gold);
    transition: width var(--transition-speed);
}
.nav-links a:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-navy);
    cursor: pointer;
}

.has-dropdown {
    position: relative;
    padding-bottom: 5px;
}
.has-dropdown > a {
    display: flex;
    align-items: center;
    gap: 5px;
}
.has-dropdown > a i {
    font-size: 0.7rem;
    transition: transform var(--transition-speed);
}
.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--color-white);
    box-shadow: var(--shadow-md);
    border-radius: var(--border-radius);
    padding: 10px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-speed);
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown,
.has-dropdown.open .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.dropdown li {
    padding: 0;
}
.dropdown li a {
    display: block;
    padding: 10px 20px;
    font-weight: 500;
    color: var(--color-dark);
}
.has-dropdown .dropdown a::after {
    display: none;
}
.dropdown li a:hover,
.dropdown li a:focus {
    background: var(--color-light);
    color: var(--color-navy);
}

/* =========================================
   Hero Section
   ========================================= */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    background: url('hero-library.png') center/cover no-repeat;
    display: flex;
    align-items: center;
    padding-top: 100px; /* Offset header */
}
.hero-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(135deg, rgba(0,32,91,0.85) 0%, rgba(0,18,51,0.6) 100%);
}
.hero-content {
    position: relative;
    z-index: 1;
    color: var(--color-white);
    max-width: 800px;
}
.hero-title {
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    text-shadow: 0 4px 10px rgba(0,0,0,0.3);
}
.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 40px;
    opacity: 0.9;
}
.hero-actions .btn {
    margin-right: 15px;
}

/* =========================================
   Fast Facts
   ========================================= */
.facts-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}
.fact-item {
    padding: 20px;
}
.fact-icon {
    font-size: 2.5rem;
    color: var(--color-gold);
    margin-bottom: 15px;
}
.fact-number {
    font-size: 3rem;
    font-weight: 700;
    display: inline-block;
}
.fact-suffix {
    font-size: 2rem;
    font-weight: 700;
}
.fact-label {
    font-size: 1.1rem;
    margin-top: 10px;
    opacity: 0.8;
}

/* =========================================
   Explore Programs
   ========================================= */
.programs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}
.program-card {
    background: var(--color-white);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    text-align: center;
    border-bottom: 4px solid transparent;
}
.program-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-bottom-color: var(--color-gold);
}
.program-icon {
    font-size: 3rem;
    color: var(--color-navy);
    margin-bottom: 20px;
}
.program-title {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--color-navy);
}
.program-desc {
    color: var(--color-gray);
    font-size: 0.95rem;
    margin-bottom: 20px;
}
.program-link {
    color: var(--color-gold);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
}

.program-search {
    max-width: 500px;
    margin: 30px auto 0;
}
#program-finder {
    width: 100%;
    padding: 15px 20px;
    border: 1px solid #ddd;
    border-radius: 30px;
    font-size: 1rem;
    box-shadow: var(--shadow-sm);
    outline: none;
    transition: box-shadow var(--transition-speed), border-color var(--transition-speed);
}
#program-finder:focus {
    box-shadow: var(--shadow-md);
    border-color: var(--color-navy);
}

/* =========================================
   Admissions Section
   ========================================= */
.admissions {
    position: relative;
    background: url('https://images.unsplash.com/photo-1523050854058-8df90110c9f1?auto=format&fit=crop&q=80&w=1920') center/cover fixed;
}
.admissions-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(to right, rgba(0,32,91,0.95), rgba(0,32,91,0.7));
}
.relative { position: relative; }
.z-1 { z-index: 1; }
.ml-2 { margin-left: 10px; }
.w-100 { width: 100%; display: block; text-align: center; }

.admissions-grid {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 60px;
    align-items: center;
}
.admissions-features li {
    margin-bottom: 20px;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
}
.admissions-features i {
    color: var(--color-gold);
    margin-right: 15px;
    font-size: 1.5rem;
    width: 30px;
    text-align: center;
}
.admissions-form-card {
    background: var(--color-white);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    color: var(--color-dark);
}
.form-title {
    color: var(--color-navy);
    margin-bottom: 20px;
    font-size: 1.3rem;
    text-align: center;
    font-weight: 700;
}
.form-group {
    margin-bottom: 15px;
    text-align: left;
}
.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    font-size: 0.9rem;
}
.form-group input, .form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    background-color: #fff;
}
.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: var(--color-navy);
}

/* =========================================
   Campus Life Carousel
   ========================================= */
.carousel-container {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}
.carousel-track {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE */
}
.carousel-track::-webkit-scrollbar {
    display: none; /* Chrome */
}
.carousel-slide {
    flex: 0 0 100%;
    position: relative;
    scroll-snap-align: start;
}
.carousel-slide img {
    width: 100%;
    height: 500px;
    object-fit: cover;
}
.slide-content {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    background: linear-gradient(transparent, rgba(0,32,91,0.9));
    color: var(--color-white);
    padding: 40px;
}
.slide-content h3 {
    font-size: 2rem;
    margin-bottom: 10px;
    color: var(--color-gold);
}

/* =========================================
   News & Events
   ========================================= */
.news-events-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 50px;
}
.news-card {
    display: flex;
    background: var(--color-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    margin-bottom: 20px;
    transition: box-shadow var(--transition-speed);
}
.news-card:hover {
    box-shadow: var(--shadow-md);
}
.news-img {
    width: 200px;
    object-fit: cover;
}
.news-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.news-category {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--color-gold);
    font-weight: 700;
    margin-bottom: 10px;
}
.news-title {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--color-navy);
}
.news-date {
    color: var(--color-gray);
    font-size: 0.85rem;
}

.event-card {
    display: flex;
    align-items: center;
    background: var(--color-white);
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 15px;
    border-left: 4px solid var(--color-navy);
    transition: transform var(--transition-speed);
}
.event-card:hover {
    transform: translateX(5px);
    border-left-color: var(--color-gold);
}
.event-date {
    text-align: center;
    background: var(--color-light);
    padding: 10px;
    border-radius: 4px;
    min-width: 70px;
    margin-right: 20px;
}
.event-month {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--color-navy);
}
.event-day {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-navy);
}
.event-title {
    font-size: 1.1rem;
    margin-bottom: 5px;
}
.event-time-loc {
    color: var(--color-gray);
    font-size: 0.85rem;
}

.read-more {
    font-weight: 600;
    color: var(--color-navy);
    display: inline-block;
    margin-top: 10px;
}
.read-more:hover {
    color: var(--color-gold);
}

/* =========================================
   Footer
   ========================================= */
.site-footer {
    background-color: var(--color-navy-dark);
    color: rgba(255,255,255,0.7);
    padding-top: 80px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 50px;
}
.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: 2px;
    margin-bottom: 20px;
}
.brand-col p {
    margin-bottom: 10px;
    font-size: 0.9rem;
}
.footer-heading {
    color: var(--color-white);
    font-size: 1.2rem;
    margin-bottom: 25px;
}
.footer-links li {
    margin-bottom: 12px;
}
.footer-links a:hover {
    color: var(--color-gold);
}
.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    color: var(--color-white);
    margin-right: 10px;
    transition: background var(--transition-speed);
}
.social-links a:hover {
    background: var(--color-gold);
    color: var(--color-navy);
}
.footer-bottom {
    background-color: #000;
    padding: 20px 0;
    font-size: 0.85rem;
}
.footer-bottom-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.legal-links {
    display: flex;
    gap: 20px;
}
.legal-links a:hover {
    color: var(--color-white);
}

/* =========================================
   Animations
   ========================================= */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* =========================================
   Media Queries
   ========================================= */
@media (max-width: 1024px) {
    .facts-grid { grid-template-columns: repeat(2, 1fr); }
    .news-events-grid { grid-template-columns: 1fr; }
    .hero-title { font-size: 3.5rem; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .admissions-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
    .utility-bar { display: none; }
    .nav-links {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--color-white);
        flex-direction: column;
        align-items: center;
        padding-top: 50px;
        transition: left 0.4s ease;
    }
    .nav-links.active {
        left: 0;
    }
    .mobile-menu-toggle {
        display: block;
    }
    .hero-title { font-size: 2.8rem; }
    .news-card { flex-direction: column; }
    .news-img { width: 100%; height: 200px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom-flex { flex-direction: column; gap: 15px; text-align: center; }
}