/* =================  CSS (style.css) ================= */

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    background: linear-gradient(to right, #eef2f3, #dfe9f3);
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(90deg, #141e30, #243b55);
    padding: 15px 30px;
}

.logo {
    color: #00e6e6;
    font-size: 22px;
    font-weight: bold;
}

.nav-links {
    list-style: none;
    display: flex;
}

.nav-links li {
    margin-left: 25px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    transition: 0.3s;
}

.nav-links a:hover {
    color: #00e6e6;
}

/* Header */
.header {
    text-align: center;
    padding: 50px;
    background: linear-gradient(120deg, #00c6ff, #0072ff);
    color: white;
}

/* Grid */
.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 25px;
    padding: 30px;
}

/* Card Styling */
.card {
    background: white;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 6px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    border-top: 5px solid #0072ff;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 25px rgba(0,0,0,0.2);
}

.card h3 {
    margin-bottom: 12px;
    color: #0072ff;
}


/* Course Links */
.card a {
    display: block;
    padding: 10px;
    margin: 6px 0;
    text-decoration: none;
    background: #f1f5f9;
    border-radius: 8px;
    color: #333;
    font-size: 14px;
    transition: all 0.3s ease;
    
}

.card a:hover {
    background: linear-gradient(90deg, #00c6ff, #0072ff);
    color: white;
    padding-left: 15px;
}

/* Semester Title Hover Effect */
.card h3:hover {
    color: #00c6ff;
    cursor: pointer;
}

/* Footer */
footer {
    text-align: center;
    padding: 20px;
    background: linear-gradient(90deg, #141e30, #243b55);
    color: white;
    margin-top: 20px;
}

/* Institute Header Image */
.institute-header {
    width: 100%;
    overflow: hidden;
}

.institute-header img {
    width: 100%;
    height: auto;
    max-height: 150px;
    object-fit: cover;
    display: block;
}

/* NAVBAR */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #0f172a;
    padding: 12px 30px;
    position: sticky;
    top: 0;
    z-index: 1000;
}

/* Logo */
.nav-logo {
    font-size: 22px;
    font-weight: bold;
    color: #38bdf8;
}

/* Links */
.nav-links {
    list-style: none;
    display: flex;
    gap: 25px;
    margin: 0;
    padding: 0;
}

.nav-links li a {
    text-decoration: none;
    color: white;
    font-size: 16px;
    transition: 0.3s;
}

/* Hover effect */
.nav-links li a:hover {
    color: #38bdf8;
}