/* --- Variables & Reset --- */
:root {
    --primary-color: #002147; /* Navy Blue */
    --secondary-color: #D4AF37; /* Gold */
    --text-color: #333;
    --light-bg: #f4f6f8;
    --white: #ffffff;
    --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

body {
    font-family: var(--font-main);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-bg);
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* --- Header & Navigation --- */
header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 4px solid var(--secondary-color);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
    padding: 0 15px;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--secondary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    gap: 20px;
}

.nav-links a {
    color: var(--white);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover, .nav-links a.active {
    color: var(--secondary-color);
}

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

/* --- Hero Section --- */
.hero {
    background: linear-gradient(rgba(0, 33, 71, 0.8), rgba(0, 33, 71, 0.8)), url('https://placehold.co/1920x800?text=Campus+Image');
    background-size: cover;
    background-position: center;
    height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.btn {
    display: inline-block;
    background: var(--secondary-color);
    color: var(--primary-color);
    padding: 12px 30px;
    font-weight: bold;
    border-radius: 5px;
    transition: background 0.3s;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background: #b5952f;
}

/* --- Sections General --- */
section {
    padding: 4rem 0;
}

h2 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-size: 2.2rem;
}

h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* --- News Ticker --- */
.news-ticker {
    background: var(--secondary-color);
    color: var(--primary-color);
    padding: 10px 0;
    overflow: hidden;
    white-space: nowrap;
    font-weight: bold;
}

.ticker-content {
    display: inline-block;
    padding-left: 100%;
    animation: ticker 20s linear infinite;
}

@keyframes ticker {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-100%, 0); }
}

/* --- Cards Grid --- */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    border-top: 4px solid var(--secondary-color);
    text-align: center;
}

/* --- Forms & Tables --- */
input, textarea, select {
    width: 100%;
    padding: 10px;
    margin-bottom: 1rem;
    border: 1px solid #ccc;
    border-radius: 4px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 2rem;
    background: var(--white);
}

th, td {
    padding: 12px;
    border: 1px solid #ddd;
    text-align: left;
}

th {
    background-color: var(--primary-color);
    color: var(--white);
}

/* --- Footer --- */
footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 3rem 0 1rem;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-bottom {
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 1rem;
    font-size: 0.9rem;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .navbar { flex-direction: row; }
    .menu-toggle { display: block; }
    
    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        background: var(--primary-color);
        position: absolute;
        top: 60px;
        left: 0;
        padding: 1rem;
    }

    .nav-links.active { display: flex; }
    .hero h1 { font-size: 2rem; }
}