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

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

.login-container {
    max-width: 400px;
    margin: 100px auto;
    padding: 40px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.login-container h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #2c3e50;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: #3498db;
}

.btn {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-primary {
    background-color: #3498db;
    color: white;
}

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

.btn-success {
    background-color: #27ae60;
    color: white;
}

.btn-success:hover {
    background-color: #2ecc71;
}

.btn-warning {
    background-color: #f39c12;
    color: white;
}

.btn-warning:hover {
    background-color: #e67e22;
}

.btn-danger {
    background-color: #e74c3c;
    color: white;
}

.btn-danger:hover {
    background-color: #c0392b;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 14px;
}

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

.success {
    color: #27ae60;
    margin-bottom: 15px;
    text-align: center;
}

.header {
    background-color: #2c3e50;
    color: white;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    font-size: 20px;
    font-weight: 600;
}

.header .user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.sidebar {
    width: 200px;
    background-color: #34495e;
    min-height: calc(100vh - 60px);
    float: left;
    padding-top: 20px;
}

.sidebar ul {
    list-style: none;
}

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

.sidebar ul li a {
    display: block;
    padding: 12px 20px;
    color: #ecf0f1;
    text-decoration: none;
    transition: background-color 0.3s;
}

.sidebar ul li a:hover {
    background-color: #2c3e50;
}

.sidebar ul li a.active {
    background-color: #2980b9;
}

.sidebar .submenu {
    background-color: #2c3e50;
}

.sidebar .submenu li a {
    padding-left: 40px;
}

.content {
    margin-left: 220px;
    padding: 20px;
}

.page-title {
    font-size: 24px;
    margin-bottom: 20px;
    color: #2c3e50;
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.table th, .table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #ecf0f1;
}

.table th {
    background-color: #ecf0f1;
    font-weight: 600;
}

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

.action-buttons {
    display: flex;
    gap: 5px;
}

.form-container {
    max-width: 600px;
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.form-container h2 {
    margin-bottom: 25px;
    color: #2c3e50;
}

.form-row {
    display: flex;
    gap: 20px;
}

.form-row .form-group {
    flex: 1;
}

select {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    background-color: white;
}

textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    resize: vertical;
}

.search-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.search-bar input, .search-bar select {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.card {
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    margin-bottom: 20px;
}

.card h3 {
    margin-bottom: 15px;
    color: #2c3e50;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 20px;
}

.stat-card {
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    text-align: center;
}

.stat-card .value {
    font-size: 32px;
    font-weight: 700;
    color: #3498db;
}

.stat-card .label {
    color: #7f8c8d;
    margin-top: 5px;
}

.alert-list {
    background: #fff3cd;
    border: 1px solid #ffeeba;
    border-radius: 6px;
    padding: 15px;
    margin-bottom: 20px;
}

.alert-list h3 {
    color: #856404;
    margin-bottom: 10px;
}

.pagination {
    display: flex;
    justify-content: center;
    margin-top: 20px;
}

.pagination a {
    padding: 8px 16px;
    text-decoration: none;
    border: 1px solid #ddd;
    margin: 0 2px;
    border-radius: 4px;
    color: #3498db;
}

.pagination a:hover {
    background-color: #3498db;
    color: white;
}

.status-draft { color: #f39c12; }
.status-pending { color: #3498db; }
.status-approved { color: #27ae60; }
.status-completed { color: #2ecc71; }
.status-qualified { color: #27ae60; }
.status-unqualified { color: #e74c3c; }

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

.modal-content {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    width: 400px;
}