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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Header Styles */
.header {
    background: white;
    border-radius: 10px;
    padding: 20px 30px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.header-left h1 {
    color: #333;
    font-size: 24px;
    margin-bottom: 5px;
}

.header-left p {
    color: #666;
    font-size: 14px;
}

.header-right .nav {
    display: flex;
    gap: 10px;
}

.nav-link {
    padding: 10px 20px;
    text-decoration: none;
    color: #666;
    border-radius: 5px;
    transition: all 0.3s;
    font-weight: 500;
}

.nav-link:hover {
    background: #f0f0f0;
    color: #333;
}

.nav-link.active {
    background: #667eea;
    color: white;
}

/* Main Content */
.main-content {
    background: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.content-container h2 {
    color: #333;
    margin-bottom: 20px;
    font-size: 28px;
}

/* Form Styles */
.form-section {
    background: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
}

.form-section h3 {
    color: #333;
    margin-bottom: 15px;
    font-size: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    align-items: end;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 5px;
    color: #333;
    font-weight: 500;
    font-size: 14px;
}

.form-group input,
.form-group select {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    transition: border-color 0.3s;
    height: 42px;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
}

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

/* Button Styles */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}

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

.btn-primary:hover {
    background: #5568d3;
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

.btn-success {
    background: #28a745;
    color: white;
}

.btn-success:hover {
    background: #218838;
}

.btn-warning {
    background: #ffc107;
    color: #333;
}

.btn-warning:hover {
    background: #e0a800;
}

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-danger:hover {
    background: #c82333;
}

.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
}

/* Filter Section */
.filter-section {
    background: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
}

.filter-form {
    margin: 0;
}

.filter-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    align-items: end;
}

.filter-group {
    display: flex;
    flex-direction: column;
}

.filter-group label {
    margin-bottom: 5px;
    color: #333;
    font-weight: 500;
    font-size: 14px;
}

.filter-group input,
.filter-group select {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    transition: border-color 0.3s;
    height: 42px;
}

.filter-group input:focus,
.filter-group select:focus {
    outline: none;
    border-color: #667eea;
}

.filter-actions {
    display: flex;
    gap: 10px;
}

/* Table Styles */
.table-container {
    overflow-x: auto;
    margin-bottom: 20px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

.data-table thead {
    background: #667eea;
    color: white;
}

.data-table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    font-size: 14px;
}

.data-table tbody tr {
    border-bottom: 1px solid #eee;
}

.data-table tbody tr:hover {
    background: #f9f9f9;
}

.data-table td {
    padding: 12px;
    font-size: 14px;
    color: #333;
}

.no-data {
    text-align: center;
    color: #999;
    font-style: italic;
}

.table-footer {
    background: #f9f9f9;
    padding: 15px;
    border-radius: 5px;
    text-align: right;
    color: #666;
    font-size: 14px;
}

/* Status Badge */
.status-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    display: inline-block;
}

.status-badge.active {
    background: #28a745;
    color: white;
}

.status-badge.inactive {
    background: #6c757d;
    color: white;
}

/* Action Form */
.action-form {
    display: inline-block;
    margin-right: 5px;
}

.current-user {
    color: #999;
    font-style: italic;
    font-size: 12px;
}

/* Message Styles */
.message {
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
    font-size: 14px;
}

.message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Login Page Styles */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.login-box {
    background: white;
    border-radius: 10px;
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 400px;
}

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

.login-header h1 {
    color: #333;
    font-size: 28px;
    margin-bottom: 5px;
}

.login-header p {
    color: #666;
    font-size: 16px;
}

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

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

.login-form .btn {
    width: 100%;
}

.login-footer {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.login-footer p {
    color: #666;
    font-size: 12px;
    margin: 5px 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        text-align: center;
    }

    .header-right .nav {
        flex-direction: column;
        width: 100%;
    }

    .nav-link {
        text-align: center;
    }

    .form-row,
    .filter-row {
        grid-template-columns: 1fr;
    }

    .form-actions,
    .filter-actions {
        flex-direction: column;
    }

    .form-actions .btn,
    .filter-actions .btn {
        width: 100%;
    }
}