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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #f5f7fa;
    color: #333;
}

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.login-card {
    background: white;
    border-radius: 12px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    font-size: 2rem;
    color: #333;
    margin-bottom: 5px;
}

.login-header p {
    color: #666;
    font-size: 0.95rem;
}

.login-footer {
    text-align: center;
    margin-top: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.login-footer a {
    color: #667eea;
    text-decoration: none;
    transition: color 0.3s ease;
}

.login-footer a:hover {
    color: #5568d3;
    text-decoration: underline;
}

.login-footer .separator {
    color: #ccc;
}

.login-footer .reset-link {
    font-weight: 600;
}

.login-info {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #e0e0e0;
    text-align: center;
    color: #999;
}

/* Admin Dashboard Layout */
.admin-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background: #2d3748;
    color: white;
    padding: 20px 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 0 20px 20px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 20px;
}

.sidebar-header h2 {
    font-size: 1.5rem;
    margin-bottom: 5px;
}

.sidebar-header p {
    font-size: 0.9rem;
    color: #a0aec0;
}

.sidebar-menu {
    list-style: none;
}

.sidebar-menu li {
    margin-bottom: 5px;
}

.sidebar-menu a {
    display: block;
    padding: 12px 20px;
    color: #e2e8f0;
    text-decoration: none;
    transition: all 0.3s ease;
}

.sidebar-menu a:hover {
    background: rgba(255, 255, 255, 0.1);
}

.sidebar-menu a.active {
    background: #667eea;
    border-left: 4px solid white;
}

.main-content {
    flex: 1;
    margin-left: 250px;
    padding: 30px;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.content-header h1 {
    font-size: 2rem;
    color: #2d3748;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

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

.stat-icon svg {
    width: 30px;
    height: 30px;
    stroke-width: 2;
}

.stat-details h3 {
    font-size: 2rem;
    margin-bottom: 5px;
    color: #2d3748;
}

.stat-details p {
    color: #718096;
    font-size: 0.9rem;
}

/* Quick Actions */
.quick-actions {
    margin-top: 40px;
}

.quick-actions h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #2d3748;
}

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

.action-card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.action-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.action-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.action-card h3 {
    color: #2d3748;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.action-card p {
    color: #718096;
    font-size: 0.9rem;
}

/* Cards */
.card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.card h2 {
    margin-bottom: 20px;
    color: #2d3748;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #4a5568;
    font-size: 0.95rem;
}

.form-control {
    width: 100%;
    padding: 10px 15px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

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

.file-status {
    display: block;
    margin-top: 5px;
    color: #48bb78;
    font-size: 0.85rem;
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 25px;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
    transform: translateY(-2px);
}

.btn-secondary {
    background: #e2e8f0;
    color: #4a5568;
}

.btn-secondary:hover {
    background: #cbd5e0;
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.85rem;
    border-radius: 6px;
}

.btn-edit {
    background: #4299e1;
    color: white;
}

.btn-edit:hover {
    background: #3182ce;
}

.btn-delete {
    background: #f56565;
    color: white;
}

.btn-delete:hover {
    background: #e53e3e;
}

/* Alerts */
.alert {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-weight: 500;
}

.alert-success {
    background: #c6f6d5;
    color: #22543d;
    border-left: 4px solid #48bb78;
}

.alert-error {
    background: #fed7d7;
    color: #742a2a;
    border-left: 4px solid #f56565;
}

/* Data Table */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background: #f7fafc;
}

.data-table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: #4a5568;
    border-bottom: 2px solid #e2e8f0;
}

.data-table td {
    padding: 12px;
    border-bottom: 1px solid #e2e8f0;
}

.data-table tbody tr:hover {
    background: #f7fafc;
}

.data-table .actions {
    display: flex;
    gap: 8px;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        position: relative;
        height: auto;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .stats-grid,
    .action-grid {
        grid-template-columns: 1fr;
    }
    
    .content-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
}