/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background-color: white;
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo h1 {
    color: var(--primary-color);
    font-size: 1.8rem;
}

.logo span {
    color: var(--secondary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: var(--transition);
}

.nav-menu a:hover {
    color: var(--secondary-color);
}

.nav-menu a.active {
    color: var(--secondary-color);
}

.btn-login {
    background-color: var(--secondary-color);
    color: white !important;
    padding: 0.5rem 1.5rem;
    border-radius: 5px;
}

.btn-login:hover {
    background-color: #2980b9;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--dark-color);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(44, 62, 80, 0.9), rgba(44, 62, 80, 0.9)),
                url('../images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 120px 0 80px;
    margin-top: 60px;
}

.hero-content {
    max-width: 600px;
    text-align: center;
    margin: 0 auto;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

/* Buttons */
.btn-primary, .btn-secondary {
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: var(--transition);
    margin: 0 10px;
}

.btn-primary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-primary:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background-color: white;
    color: var(--dark-color);
}

/* Departments */
.departments {
    padding: 80px 0;
    background-color: white;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 3rem;
}

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

.department-card {
    background-color: var(--light-color);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.department-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.department-card i {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.department-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* Stats */
.stats {
    background-color: var(--primary-color);
    color: white;
    padding: 60px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

/* Courses */
.courses {
    padding: 100px 0 80px;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1.5rem;
    background-color: var(--light-color);
    border: none;
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn.active {
    background-color: var(--secondary-color);
    color: white;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.course-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.course-header {
    padding: 1.5rem;
    background-color: var(--primary-color);
    color: white;
}

.course-header h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.course-header .course-dept {
    font-size: 0.9rem;
    opacity: 0.8;
}

.course-body {
    padding: 1.5rem;
}

.course-duration, .course-fee {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: #666;
}

.course-duration i, .course-fee i {
    color: var(--secondary-color);
}

/* Application Form */
.application {
    padding: 100px 0 80px;
}

.application-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
}

.form-step {
    display: none;
    animation: fadeIn 0.5s ease;
}

.form-step.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--secondary-color);
}

.form-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.application-info {
    background-color: var(--light-color);
    padding: 2rem;
    border-radius: 10px;
    height: fit-content;
}

.application-info ul {
    list-style: none;
    margin: 1.5rem 0;
}

.application-info li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #ddd;
}

.application-info li:last-child {
    border-bottom: none;
}

.status-check {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.status-check input {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 5px;
}

/* Dashboard */
.dashboard {
    padding: 100px 0 80px;
    min-height: calc(100vh - 200px);
}

.dashboard-container {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 2rem;
}

.dashboard-sidebar {
    background-color: white;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: var(--shadow);
}

.dashboard-sidebar ul {
    list-style: none;
}

.dashboard-sidebar li {
    margin-bottom: 1rem;
}

.dashboard-sidebar a {
    display: block;
    padding: 0.8rem 1rem;
    color: var(--dark-color);
    text-decoration: none;
    border-radius: 5px;
    transition: var(--transition);
}

.dashboard-sidebar a:hover,
.dashboard-sidebar a.active {
    background-color: var(--light-color);
    color: var(--secondary-color);
}

.dashboard-content {
    background-color: white;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: var(--shadow);
}

.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: var(--light-color);
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
}

.stat-card i {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: white;
    padding: 60px 0 30px;
}

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

.footer-col h3,
.footer-col h4 {
    color: white;
    margin-bottom: 1rem;
}

.footer-col a {
    color: #ddd;
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--secondary-color);
}

.footer-col p {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.copyright {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #bbb;
    font-size: 0.9rem;
}

/* Admin Dashboard */
.admin-header {
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 0;
    margin-bottom: 2rem;
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.admin-card {
    background-color: white;
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.table-container {
    overflow-x: auto;
    margin-top: 2rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
    box-shadow: var(--shadow);
}

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

th {
    background-color: var(--light-color);
    font-weight: 600;
}

tr:hover {
    background-color: #f5f5f5;
}

.status-badge {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.status-pending {
    background-color: #fff3cd;
    color: #856404;
}

.status-approved {
    background-color: #d4edda;
    color: #155724;
}

.status-rejected {
    background-color: #f8d7da;
    color: #721c24;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: white;
    padding: 2rem;
    border-radius: 10px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.close-modal {
    float: right;
    font-size: 1.5rem;
    cursor: pointer;
    color: #999;
}

.close-modal:hover {
    color: var(--dark-color);
}

/* Responsive Design */
@media (max-width: 992px) {
    .application-container {
        grid-template-columns: 1fr;
    }
    
    .dashboard-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .stats-grid,
    .department-grid,
    .courses-grid {
        grid-template-columns: 1fr;
    }
}