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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f0f4f8;
    color: #333;
    line-height: 1.6;
}

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

/* Header */
.header {
    background: linear-gradient(135deg, #1a3a5c 0%, #2d6a9f 100%);
    padding: 15px 0;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo a {
    color: #fff;
    font-size: 1.8rem;
    font-weight: 700;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo a i {
    color: #ffd700;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 25px;
}

.nav-links a {
    color: #e0e8f0;
    text-decoration: none;
    font-size: 1rem;
    padding: 8px 15px;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.nav-links a:hover, .nav-links a.active {
    background: rgba(255,255,255,0.2);
    color: #fff;
    transform: translateY(-2px);
}

.hamburger {
    display: none;
    color: #fff;
    font-size: 1.8rem;
    cursor: pointer;
}

/* Hero */
.hero {
    background: linear-gradient(135deg, #2d6a9f 0%, #4a90d9 50%, #6bb3f0 100%);
    padding: 80px 20px;
    text-align: center;
    color: #fff;
}

.hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-search {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.hero-search input {
    padding: 15px 25px;
    width: 350px;
    max-width: 100%;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.hero-search button {
    padding: 15px 30px;
    background: #ffd700;
    color: #1a3a5c;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.hero-search button:hover {
    background: #ffc107;
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0,0,0,0.3);
}

/* Filters */
.filters {
    background: #fff;
    padding: 30px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.filters h2 {
    text-align: center;
    margin-bottom: 20px;
    color: #1a3a5c;
}

.filter-group {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
}

.filter-group label {
    font-weight: 600;
    color: #555;
}

.filter-group select {
    padding: 10px 15px;
    border: 2px solid #ddd;
    border-radius: 10px;
    font-size: 0.95rem;
    background: #f9f9f9;
    transition: border-color 0.3s;
}

.filter-group select:focus {
    border-color: #2d6a9f;
    outline: none;
}

.btn-reset {
    padding: 10px 20px;
    background: #e74c3c;
    color: #fff;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-reset:hover {
    background: #c0392b;
    transform: translateY(-2px);
}

/* School Grid */
.school-grid-section {
    padding: 50px 0;
}

.school-grid-section h2 {
    text-align: center;
    color: #1a3a5c;
    margin-bottom: 30px;
}

.school-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 25px;
}

.school-card {
    background: #fff;
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    cursor: pointer;
}

.school-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.15);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.card-header h3 {
    font-size: 1.3rem;
    color: #1a3a5c;
}

.badge {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    color: #fff;
}

.badge-public {
    background: #27ae60;
}

.badge-private {
    background: #e67e22;
}

.card-body p {
    margin: 8px 0;
    color: #666;
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-body i {
    color: #2d6a9f;
    width: 20px;
}

.card-footer {
    margin-top: 15px;
    display: flex;
    gap: 10px;
}

.btn-detail, .btn-compare {
    padding: 10px 20px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.btn-detail {
    background: #2d6a9f;
    color: #fff;
    text-decoration: none;
}

.btn-detail:hover {
    background: #1a3a5c;
    transform: translateY(-2px);
}

.btn-compare {
    background: #f0f4f8;
    color: #2d6a9f;
    border: 2px solid #2d6a9f;
}

.btn-compare:hover {
    background: #2d6a9f;
    color: #fff;
    transform: translateY(-2px);
}

/* Ranking */
.ranking-section {
    background: #fff;
    padding: 50px 0;
}

.ranking-section h2 {
    text-align: center;
    color: #1a3a5c;
    margin-bottom: 30px;
}

.ranking-list {
    max-width: 700px;
    margin: 0 auto;
}

.ranking-item {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    margin-bottom: 10px;
    background: #f9f9f9;
    border-radius: 15px;
    transition: all 0.3s;
}

.ranking-item:hover {
    background: #e8f0fe;
    transform: translateX(5px);
}

.rank-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffd700;
    width: 50px;
    text-align: center;
}

.rank-info {
    flex: 1;
    margin-left: 15px;
}

.rank-info h4 {
    color: #1a3a5c;
}

.rank-score {
    font-size: 1.2rem;
    font-weight: 700;
    color: #2d6a9f;
}

/* Comments */
.comments-section {
    padding: 50px 0;
    background: #f0f4f8;
}

.comments-section h2 {
    text-align: center;
    color: #1a3a5c;
    margin-bottom: 30px;
}

.comments-list {
    max-width: 700px;
    margin: 0 auto 30px;
}

.comment-item {
    background: #fff;
    padding: 20px;
    border-radius: 15px;
    margin-bottom: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.comment-item small {
    color: #999;
}

.comment-form {
    max-width: 500px;
    margin: 0 auto;
}

.comment-form h3 {
    text-align: center;
    color: #1a3a5c;
    margin-bottom: 20px;
}

.comment-form input, .comment-form select, .comment-form textarea {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 2px solid #ddd;
    border-radius: 10px;
    font-size: 1rem;
}

.comment-form textarea {
    height: 100px;
    resize: vertical;
}

.comment-form button {
    width: 100%;
    padding: 15px;
    background: #2d6a9f;
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s;
}

.comment-form button:hover {
    background: #1a3a5c;
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background: #1a3a5c;
    color: #e0e8f0;
    padding: 30px 0;
    text-align: center;
}

.footer a {
    color: #ffd700;
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

/* Admin */
.admin-container {
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
}

.login-form {
    max-width: 400px;
    margin: 100px auto;
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.login-form h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #1a3a5c;
}

.login-form input {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 2px solid #ddd;
    border-radius: 10px;
}

.login-form button {
    width: 100%;
    padding: 12px;
    background: #2d6a9f;
    color: #fff;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1rem;
}

.error {
    color: #e74c3c;
    text-align: center;
    margin-bottom: 15px;
}

.admin-dashboard {
    background: #fff;
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.08);
}

.admin-dashboard h2, .admin-dashboard h3 {
    color: #1a3a5c;
    margin-bottom: 20px;
}

.admin-form {
    max-width: 600px;
    margin-bottom: 30px;
}

.admin-form input, .admin-form select, .admin-form textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 2px solid #ddd;
    border-radius: 10px;
}

.admin-form button {
    padding: 12px 25px;
    background: #27ae60;
    color: #fff;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s;
}

.admin-form button:hover {
    background: #219a52;
    transform: translateY(-2px);
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 30px;
}

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

.admin-table th {
    background: #2d6a9f;
    color: #fff;
}

.admin-table tr:hover {
    background: #f0f4f8;
}

.btn-delete {
    color: #e74c3c;
    text-decoration: none;
    padding: 5px 10px;
    border-radius: 5px;
}

.btn-delete:hover {
    background: #e74c3c;
    color: #fff;
}

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

.modal-content {
    background: #fff;
    margin: 10% auto;
    padding: 30px;
    width: 90%;
    max-width: 600px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.close {
    float: right;
    font-size: 2rem;
    cursor: pointer;
    color: #aaa;
}

.close:hover {
    color: #333;
}

/* Compare Page */
.compare-section {
    padding: 50px 0;
}

.compare-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.compare-card {
    background: #fff;
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.compare-card h3 {
    color: #1a3a5c;
    margin-bottom: 15px;
}

.compare-card p {
    margin: 8px 0;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: #1a3a5c;
        padding: 20px;
        box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    }

    .nav-links.active {
        display: flex;
    }

    .hamburger {
        display: block;
    }

    .hero-content h1 {
        font-size: 1.8rem;
    }

    .filter-group {
        flex-direction: column;
        align-items: stretch;
    }

    .school-grid {
        grid-template-columns: 1fr;
    }

    .ranking-item {
        flex-direction: column;
        text-align: center;
    }

    .rank-number {
        margin-bottom: 10px;
    }
}

@media (max-width: 480px) {
    .hero-search input {
        width: 100%;
    }

    .hero-search button {
        width: 100%;
    }
}