/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --primary-dark: #0d2137;
    --primary-blue: #1a6fb5;
    --accent-orange: #f5a623;
    --bg-light: #f8f9fa;
    --footer-dark: #0a1a2a;
    --white: #ffffff;
    --gray-100: #f0f2f5;
    --gray-200: #e2e6ea;
    --gray-300: #ced4da;
    --gray-500: #6c757d;
    --gray-700: #495057;
    --danger: #dc3545;
    --success: #28a745;
    --warning: #ffc107;
    --radius: 8px;
    --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 4px 24px rgba(0, 0, 0, 0.12);
    --transition: 0.2s ease;
}

html {
    font-size: 15px;
}

body {
    font-family: 'Montserrat', sans-serif;
    background: var(--bg-light);
    color: var(--primary-dark);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.6;
}

h1, h2, h3, h4 {
    font-family: 'Raleway', sans-serif;
    font-weight: 700;
}

a {
    color: var(--primary-blue);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* ===== Navigation ===== */
.admin-nav {
    background: var(--white);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    padding: 0 24px;
    height: 64px;
    position: sticky;
    top: 0;
    z-index: 1000;
    gap: 24px;
}

.nav-brand a {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.nav-logo {
    height: 40px;
    width: auto;
}

.brand-text {
    font-family: 'Raleway', sans-serif;
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: 1px;
}

.brand-courier {
    color: var(--primary-dark);
}

.brand-point {
    color: var(--primary-blue);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--primary-dark);
    transition: var(--transition);
}

.nav-links {
    display: flex;
    gap: 4px;
    flex: 1;
}

.nav-links a {
    padding: 8px 16px;
    border-radius: var(--radius);
    color: var(--gray-700);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    text-decoration: none;
}

.nav-links a:hover {
    background: var(--gray-100);
    color: var(--primary-dark);
    text-decoration: none;
}

.nav-links a.active {
    background: var(--primary-blue);
    color: var(--white);
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: auto;
    white-space: nowrap;
}

.user-name {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--primary-dark);
}

.user-role {
    font-size: 0.75rem;
    color: var(--white);
    background: var(--primary-blue);
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 500;
}

.btn-logout {
    background: none;
    border: 1px solid var(--danger);
    color: var(--danger);
    padding: 6px 14px;
    border-radius: var(--radius);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-logout:hover {
    background: var(--danger);
    color: var(--white);
    text-decoration: none;
}

/* ===== Main Content ===== */
.admin-main {
    flex: 1;
    padding: 24px;
    max-width: 1280px;
    width: 100%;
    margin: 0 auto;
}

/* ===== Footer ===== */
.admin-footer {
    background: var(--footer-dark);
    color: var(--gray-300);
    text-align: center;
    padding: 16px;
    font-size: 0.8rem;
    margin-top: auto;
}

/* ===== Page Header ===== */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.page-header h1 {
    font-size: 1.6rem;
    color: var(--primary-dark);
}

/* ===== Cards ===== */
.card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    margin-bottom: 24px;
}

.card-header {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--gray-100);
}

/* ===== Stat Cards ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    text-align: center;
    border-top: 3px solid var(--primary-blue);
    transition: transform var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
}

.stat-card .stat-value {
    font-family: 'Raleway', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-dark);
}

.stat-card .stat-label {
    color: var(--gray-500);
    font-size: 0.85rem;
    margin-top: 4px;
    font-weight: 500;
}

.stat-card.accent {
    border-top-color: var(--accent-orange);
}

.stat-card.success {
    border-top-color: var(--success);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius);
    font-family: 'Montserrat', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    line-height: 1.4;
}

.btn:hover {
    text-decoration: none;
    opacity: 0.9;
}

.btn-primary {
    background: var(--primary-blue);
    color: var(--white);
}

.btn-primary:hover {
    background: #14578e;
}

.btn-accent {
    background: var(--accent-orange);
    color: var(--white);
}

.btn-accent:hover {
    background: #d4900e;
}

.btn-dark {
    background: var(--primary-dark);
    color: var(--white);
}

.btn-dark:hover {
    background: #0a1a2a;
}

.btn-danger {
    background: var(--danger);
    color: var(--white);
}

.btn-outline {
    background: none;
    border: 1px solid var(--gray-300);
    color: var(--gray-700);
}

.btn-outline:hover {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

/* ===== Forms ===== */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.9rem;
    color: var(--primary-dark);
    transition: var(--transition);
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(26, 111, 181, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-group input[readonly] {
    background: var(--gray-100);
    cursor: default;
}

.form-row {
    display: flex;
    gap: 16px;
}

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

.form-section {
    margin-top: 24px;
    margin-bottom: 8px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-blue);
    border-bottom: 2px solid var(--gray-200);
    padding-bottom: 8px;
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--gray-200);
}

/* ===== Tables ===== */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

thead {
    background: var(--primary-dark);
    color: var(--white);
}

th {
    padding: 12px 14px;
    text-align: left;
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--gray-200);
    vertical-align: middle;
}

tbody tr:hover {
    background: var(--gray-100);
}

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

.table-link {
    color: var(--primary-blue);
    font-weight: 600;
}

/* ===== Badges ===== */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge-admin {
    background: #e8d4f8;
    color: #6b21a8;
}

.badge-staff {
    background: #dbeafe;
    color: #1e40af;
}

.badge-dox {
    background: #d1fae5;
    color: #065f46;
}

.badge-nondox {
    background: #fef3c7;
    color: #92400e;
}

/* ===== Alerts ===== */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-danger {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fde68a;
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    align-items: center;
    gap: 4px;
    justify-content: center;
    margin-top: 24px;
}

.pagination a,
.pagination span {
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid var(--gray-300);
    color: var(--gray-700);
    transition: var(--transition);
    text-decoration: none;
}

.pagination a:hover {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
    text-decoration: none;
}

.pagination .active {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

.pagination .disabled {
    opacity: 0.4;
    pointer-events: none;
}

/* ===== Search/Filter Bar ===== */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: flex-end;
    margin-bottom: 20px;
}

.filter-bar .form-group {
    margin-bottom: 0;
    flex: 1;
    min-width: 160px;
}

.filter-bar .btn {
    height: 40px;
}

/* ===== Detail View ===== */
.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.detail-row {
    display: flex;
    flex-direction: column;
}

.detail-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.detail-value {
    font-size: 0.95rem;
    color: var(--primary-dark);
    font-weight: 500;
}

.detail-section {
    margin-bottom: 24px;
}

.detail-section h3 {
    font-size: 1rem;
    color: var(--primary-blue);
    border-bottom: 2px solid var(--gray-200);
    padding-bottom: 8px;
    margin-bottom: 16px;
}

/* ===== Login Page ===== */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-blue));
    padding: 20px;
}

.login-card {
    background: var(--white);
    border-radius: 12px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.login-card .login-logo {
    height: 60px;
    margin-bottom: 8px;
}

.login-card .login-brand {
    font-family: 'Raleway', sans-serif;
    font-weight: 800;
    font-size: 1.4rem;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.login-card .login-subtitle {
    color: var(--gray-500);
    font-size: 0.85rem;
    margin-bottom: 28px;
}

.login-card .form-group {
    text-align: left;
}

.login-card .form-group input {
    padding: 12px 14px;
}

.login-card .btn {
    width: 100%;
    justify-content: center;
    padding: 12px;
    font-size: 0.95rem;
    margin-top: 8px;
}

/* ===== Shipment View Actions ===== */
.action-bar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* ===== Empty States ===== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-500);
}

.empty-state h3 {
    color: var(--gray-700);
    margin-bottom: 8px;
}

.empty-state p {
    margin-bottom: 20px;
}

/* ===== User Management ===== */
.user-form-inline {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: flex-end;
    padding: 20px;
    background: var(--gray-100);
    border-radius: var(--radius);
    margin-bottom: 20px;
}

.user-form-inline .form-group {
    margin-bottom: 0;
    flex: 1;
    min-width: 140px;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .admin-nav {
        flex-wrap: wrap;
        height: auto;
        padding: 12px 16px;
    }

    .nav-toggle {
        display: flex;
        margin-left: auto;
    }

    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        order: 3;
        padding-top: 8px;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-user {
        display: none;
        width: 100%;
        order: 4;
        padding-top: 8px;
        border-top: 1px solid var(--gray-200);
        margin-left: 0;
    }

    .nav-links.open ~ .nav-user {
        display: flex;
    }

    .admin-main {
        padding: 16px;
    }

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

    .form-row {
        flex-direction: column;
    }

    .detail-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

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

    .filter-bar {
        flex-direction: column;
    }

    .filter-bar .form-group {
        min-width: 100%;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}