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

:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --gray-color: #7f8c8d;
    --light-gray: #bdc3c7;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
}

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

/* Typography */
h1, h2, h3, h4 {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: background-color 0.3s, transform 0.2s;
    text-align: center;
}

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

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

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

.btn-success {
    background-color: var(--success-color);
}

.btn-danger {
    background-color: var(--danger-color);
}

.btn-warning {
    background-color: var(--warning-color);
}

/* Navigation */
.navbar {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo h2 {
    margin: 0;
    color: var(--primary-color);
    font-size: 1.5rem;
}

.logo p {
    margin: 0;
    color: var(--gray-color);
    font-size: 0.9rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 20px;
}

.nav-menu li a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 15px;
    border-radius: 5px;
    font-weight: 500;
}

.nav-menu li a.active {
    background-color: var(--primary-color);
    color: white;
}

.hamburger {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 80px 0;
    text-align: center;
}

.hero h1 {
    color: white;
    font-size: 3rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.search-form {
    max-width: 600px;
    margin: 0 auto 40px;
    display: flex;
    gap: 10px;
}

.search-form input {
    flex: 1;
    padding: 15px 20px;
    border: none;
    border-radius: 50px;
    font-size: 16px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.search-form button {
    padding: 15px 30px;
    background-color: white;
    color: var(--primary-color);
    border: none;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
}

.search-form button:hover {
    transform: translateY(-2px);
}

.stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 40px;
}

.stat-item {
    text-align: center;
}

.stat-item i {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.stat-item h3 {
    font-size: 2.5rem;
    color: white;
    margin: 0;
}

.stat-item p {
    margin: 0;
    opacity: 0.8;
}

/* Skripsi Cards */
.skripsi-section {
    margin: 60px 0;
}

.skripsi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.skripsi-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.skripsi-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.skripsi-header {
    padding: 20px;
    background-color: #f8f9fa;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.skripsi-header h3 {
    margin: 0;
    flex: 1;
    font-size: 1.2rem;
}

.badge {
    background-color: var(--primary-color);
    color: white;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.badge.popular {
    background-color: var(--danger-color);
}

.skripsi-body {
    padding: 20px;
}

.skripsi-body p {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.abstract {
    color: var(--gray-color);
    font-size: 0.95rem;
    line-height: 1.5;
}

.skripsi-footer {
    padding: 15px 20px;
    background-color: #f8f9fa;
    border-top: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn-detail {
    padding: 8px 20px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 5px;
    font-weight: 500;
}

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

/* Auth Pages */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 20px;
}

.auth-card {
    background-color: white;
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 500px;
    overflow: hidden;
}

.auth-header {
    padding: 40px 40px 20px;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.auth-header h2 {
    color: white;
    margin-bottom: 10px;
}

.auth-header p {
    opacity: 0.8;
    margin: 0;
}

.auth-form {
    padding: 40px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
    font-family: 'Poppins', sans-serif;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.password-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: var(--gray-color);
}

.btn-auth {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 30px 0 20px;
}

.btn-auth:hover {
    transform: translateY(-2px);
}

.auth-links {
    text-align: center;
    margin-top: 20px;
}

.terms {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    font-size: 0.9rem;
    color: var(--gray-color);
}

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-error {
    background-color: #ffebee;
    color: #c62828;
    border-left: 4px solid #c62828;
}

.alert-success {
    background-color: #e8f5e9;
    color: #2e7d32;
    border-left: 4px solid #2e7d32;
}

/* Dashboard */
.welcome-section {
    margin: 40px 0;
}

.welcome-card {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 15px;
    padding: 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 10px 30px rgba(52, 152, 219, 0.2);
}

.welcome-content h1 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.user-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin: 20px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin: 40px 0;
}

.stat-card {
    background-color: white;
    border-radius: 10px;
    padding: 25px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.stat-content h3 {
    font-size: 2rem;
    margin: 0;
}

.stat-content p {
    margin: 5px 0 0;
    color: var(--gray-color);
}

/* Dashboard Table */
.dashboard-section {
    background-color: white;
    border-radius: 10px;
    padding: 30px;
    margin: 40px 0;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.table-responsive {
    overflow-x: auto;
    margin: 20px 0;
}

.dashboard-table {
    width: 100%;
    border-collapse: collapse;
}

.dashboard-table th,
.dashboard-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #eee;
}

.dashboard-table th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: var(--dark-color);
}

.dashboard-table tr:hover {
    background-color: #f8f9fa;
}

.status-badge {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.status-approved {
    background-color: #e8f5e9;
    color: #2e7d32;
}

.status-pending {
    background-color: #fff3e0;
    color: #ef6c00;
}

.status-rejected {
    background-color: #ffebee;
    color: #c62828;
}

.btn-action {
    padding: 8px 12px;
    background-color: #f8f9fa;
    border-radius: 5px;
    margin: 0 5px;
    color: var(--gray-color);
}

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

.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-state i {
    font-size: 4rem;
    color: var(--light-gray);
    margin-bottom: 20px;
}

.empty-state h3 {
    color: var(--gray-color);
    margin-bottom: 10px;
}

.empty-state p {
    color: var(--gray-color);
    margin-bottom: 30px;
}

.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.quick-action-card {
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    transition: all 0.3s;
}

.quick-action-card:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-5px);
}

.quick-action-card:hover h3,
.quick-action-card:hover p {
    color: white;
}

.quick-action-card i {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.quick-action-card:hover i {
    color: white;
}

.quick-action-card h3 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.quick-action-card p {
    font-size: 0.9rem;
    color: var(--gray-color);
}

/* Upload Form */
.upload-container {
    background-color: white;
    border-radius: 15px;
    padding: 40px;
    margin: 40px 0;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.upload-header {
    text-align: center;
    margin-bottom: 40px;
}

.upload-header h1 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.upload-header p {
    color: var(--gray-color);
    font-size: 1.1rem;
}

.form-section {
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 2px solid #f5f7fa;
}

.form-section h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 25px;
    color: var(--primary-color);
}

.char-count {
    text-align: right;
    font-size: 0.85rem;
    color: var(--gray-color);
    margin-top: 5px;
}

.drive-guide {
    background-color: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
    margin-top: 20px;
}

.drive-guide h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.drive-guide ol {
    margin-left: 20px;
}

.drive-guide li {
    margin-bottom: 10px;
}

.form-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin: 40px 0;
}

.btn-upload {
    padding: 15px 30px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: transform 0.2s;
}

.btn-upload:hover {
    transform: translateY(-2px);
}

.btn-reset, .btn-cancel {
    padding: 15px 30px;
    background-color: #f8f9fa;
    color: var(--gray-color);
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.2s;
}

.btn-reset:hover {
    background-color: #e9ecef;
    color: var(--dark-color);
}

.btn-cancel:hover {
    background-color: #ffebee;
    color: var(--danger-color);
}

.upload-note {
    background-color: #fff3e0;
    border-left: 4px solid var(--warning-color);
    padding: 15px 20px;
    border-radius: 5px;
    margin-top: 30px;
}

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

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: white;
    margin-bottom: 20px;
}

.footer-section p {
    color: #bdc3c7;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: #bdc3c7;
    transition: color 0.3s;
}

.footer-section ul li a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #34495e;
    color: #bdc3c7;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: white;
        flex-direction: column;
        align-items: center;
        padding: 20px;
        transition: left 0.3s;
        z-index: 1000;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .skripsi-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .search-form {
        flex-direction: column;
    }
    
    .welcome-card {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 50px 0;
    }
    
    .auth-form,
    .upload-container {
        padding: 20px;
    }
    
    .welcome-card {
        padding: 20px;
    }
}