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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f4f4f4;
}

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

.navbar {
    background-color: #2c3e50;
    color: white;
    padding: 1rem 0;
    margin-bottom: 2rem;
}

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

.navbar h1 {
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-links a {
    color: white;
    text-decoration: none;
    padding: 5px 10px;
}

.nav-links a:hover {
    background-color: #34495e;
    border-radius: 3px;
}

.auth-container {
    max-width: 400px;
    margin: 50px auto;
    background: white;
    padding: 30px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 3px;
    font-size: 14px;
}

.btn {
    background-color: #3498db;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

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

.error {
    background-color: #e74c3c;
    color: white;
    padding: 10px;
    border-radius: 3px;
    margin-bottom: 15px;
}

.shipments-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    margin-top: 20px;
}

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

.shipments-table th {
    background-color: #34495e;
    color: white;
}

.shipments-table tr:hover {
    background-color: #f5f5f5;
}

.status-pending {
    color: #f39c12;
    font-weight: bold;
}

.status-in_transit {
    color: #3498db;
    font-weight: bold;
}

.status-delivered {
    color: #27ae60;
    font-weight: bold;
}

.shipment-detail {
    background: white;
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.comments-section {
    background: white;
    padding: 20px;
    border-radius: 5px;
    margin-top: 20px;
}

.comment {
    background: #f9f9f9;
    padding: 10px;
    margin: 10px 0;
    border-left: 3px solid #3498db;
}

.comment small {
    color: #666;
}

.filters {
    margin-bottom: 20px;
}

.filters .btn {
    margin-right: 10px;
    margin-bottom: 10px;
}

.info {
    color: #666;
    font-style: italic;
    margin-top: 10px;
}

.admin-actions,
.admin-links {
    background: white;
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.admin-links ul {
    list-style: none;
    padding-left: 0;
}

.admin-links li {
    padding: 5px 0;
}

.admin-links a {
    color: #3498db;
    text-decoration: none;
}

.admin-links a:hover {
    text-decoration: underline;
}

.dashboard-actions {
    margin-bottom: 30px;
}

.dashboard-actions .btn {
    margin-right: 10px;
}

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

.stat-card {
    background: white;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    text-align: center;
}

.stat-card h4 {
    color: #666;
    margin-bottom: 10px;
}

.stat-number {
    font-size: 2.5em;
    font-weight: bold;
    color: #3498db;
    margin: 0;
}

.profile-info {
    background: white;
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.profile-info p {
    margin: 10px 0;
    font-size: 1.1em;
}

.settings-section {
    background: white;
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.settings-section ul {
    list-style: none;
    padding-left: 0;
}

.settings-section li {
    padding: 8px 0;
    border-bottom: 1px solid #eee;
}

.settings-section li:last-child {
    border-bottom: none;
}

.settings-section a {
    color: #3498db;
    text-decoration: none;
}

.settings-section a:hover {
    text-decoration: underline;
}

.help-section {
    background: white;
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.help-section h4 {
    color: #2c3e50;
    margin-top: 15px;
    margin-bottom: 8px;
}

.success-message {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
    padding: 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.message-preview {
    background: white;
    padding: 15px;
    border-radius: 3px;
    margin: 15px 0;
    border-left: 3px solid #3498db;
}

.export-section {
    background: white;
    padding: 20px;
    border-radius: 5px;
    margin-top: 20px;
}

.export-section .btn {
    margin-right: 10px;
}