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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    color: #333;
}

/* Login Page */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
}

.login-container {
    background: white;
    padding: 45px;
    border-radius: 16px;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 420px;
}

.login-header {
    text-align: center;
    margin-bottom: 35px;
}

.login-logo {
    width: 100px;
    height: auto;
    margin-bottom: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.login-header h1 {
    font-size: 20px;
    color: #1e3c72;
    margin-bottom: 8px;
    font-weight: 700;
}

.login-header p {
    font-size: 13px;
    color: #666;
}

.login-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 12px;
    color: #999;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: #555;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

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

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    width: 100%;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #5568d3 0%, #6439a0 100%);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    transform: translateY(-1px);
}

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

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

.btn-success {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: white;
    padding: 8px 15px;
    font-size: 12px;
    box-shadow: 0 2px 6px rgba(40, 167, 69, 0.3);
}

.btn-success:hover {
    background: linear-gradient(135deg, #218838 0%, #1aa179 100%);
    box-shadow: 0 4px 10px rgba(40, 167, 69, 0.4);
    transform: translateY(-1px);
}

.btn-info {
    background: linear-gradient(135deg, #17a2b8 0%, #138496 100%);
    color: white;
    padding: 8px 15px;
    font-size: 12px;
    box-shadow: 0 2px 6px rgba(23, 162, 184, 0.3);
}

.btn-info:hover {
    background: linear-gradient(135deg, #138496 0%, #0f6674 100%);
    box-shadow: 0 4px 10px rgba(23, 162, 184, 0.4);
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
    color: white;
    padding: 8px 15px;
    font-size: 12px;
    box-shadow: 0 2px 6px rgba(220, 53, 69, 0.3);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #c82333 0%, #a71d2a 100%);
    box-shadow: 0 4px 10px rgba(220, 53, 69, 0.4);
    transform: translateY(-1px);
}

.btn-warning {
    background: linear-gradient(135deg, #ffc107 0%, #ff9800 100%);
    color: #333;
    padding: 8px 15px;
    font-size: 12px;
    box-shadow: 0 2px 6px rgba(255, 193, 7, 0.3);
}

.btn-warning:hover {
    background: linear-gradient(135deg, #e0a800 0%, #f57c00 100%);
    box-shadow: 0 4px 10px rgba(255, 193, 7, 0.4);
    transform: translateY(-1px);
}

/* Messages */
.error-message {
    background-color: #f8d7da;
    color: #721c24;
    padding: 10px;
    border-radius: 5px;
    margin-top: 15px;
    font-size: 14px;
    border: 1px solid #f5c6cb;
}

.success-message {
    background-color: #d4edda;
    color: #155724;
    padding: 10px;
    border-radius: 5px;
    margin-top: 15px;
    font-size: 14px;
    border: 1px solid #c3e6cb;
}

/* Navbar */
.navbar {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 15px;
}

.navbar-logo {
    height: 60px;
    width: auto;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    background: white;
    padding: 5px;
}

.brand-info h2 {
    color: #ffffff;
    font-size: 20px;
    font-weight: 700;
    margin: 0;
    letter-spacing: 0.5px;
}

.brand-info p {
    color: #e0e7ff;
    font-size: 12px;
    margin: 2px 0 0 0;
    font-weight: 400;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 20px;
}

.navbar-menu span {
    color: #ffffff;
    font-weight: 500;
    font-size: 14px;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 30px auto;
    padding: 0 20px;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    background: white;
    padding: 25px 30px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.page-header h1 {
    font-size: 28px;
    color: #1e3c72;
    font-weight: 700;
    margin: 0;
}

/* Search Section */
.search-section {
    background: white;
    padding: 25px;
    border-radius: 12px;
    margin-bottom: 20px;
    display: flex;
    gap: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.search-section input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid #e0e7ff;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s;
}

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

/* Table */
.table-container {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

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

thead {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
}

thead th {
    padding: 16px 18px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

thead th:nth-child(1) {
    width: 140px;
    min-width: 140px;
}

thead th:nth-child(2) {
    width: 200px;
}

thead th:nth-child(3) {
    width: 180px;
}

thead th:nth-child(4) {
    width: 120px;
}

thead th:nth-child(5) {
    width: 180px;
}

thead th:nth-child(6) {
    width: auto;
}

tbody td {
    padding: 14px 18px;
    border-bottom: 1px solid #f0f0f0;
    font-size: 14px;
}

tbody tr {
    transition: all 0.2s;
}

tbody tr:hover {
    background-color: #f8f9ff;
    transform: scale(1.01);
}

tbody tr:last-child td {
    border-bottom: none;
}

tbody td.loading {
    text-align: center;
    padding: 40px;
    color: #999;
    font-style: italic;
}

.action-buttons {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    overflow: auto;
}

.modal-content {
    background-color: white;
    margin: 50px auto;
    padding: 0;
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: 25px 30px;
    border-bottom: 2px solid #e0e7ff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #f8f9ff 0%, #ffffff 100%);
    border-radius: 12px 12px 0 0;
}

.modal-header h2 {
    font-size: 22px;
    color: #1e3c72;
    font-weight: 700;
    margin: 0;
}

.close {
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

.close:hover {
    color: #000;
}

.modal form {
    padding: 30px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}

.modal-footer .btn {
    width: auto;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 15px;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .search-section {
        flex-direction: column;
    }

    table {
        font-size: 12px;
    }

    thead th,
    tbody td {
        padding: 8px;
    }

    .action-buttons {
        flex-direction: column;
    }

    .action-buttons .btn {
        width: 100%;
    }
}