/* NT Admin Panel */

:root {
    --admin-yellow: #f8d247;
    --admin-yellow-dark: #e0bc2f;
    --admin-yellow-light: #fef8dc;
    --admin-gray: #555859;
    --admin-gray-dark: #3d3f40;
    --admin-gray-light: #7d7f80;
    --admin-bg: #f0f1f3;
    --admin-white: #ffffff;
    --admin-shadow: 0 4px 20px rgba(85, 88, 89, 0.08);
    --admin-shadow-lg: 0 12px 40px rgba(85, 88, 89, 0.12);
    --admin-radius: 14px;
    --admin-sidebar-w: 260px;
    --admin-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

body.admin-body {
    font-family: 'IBM Plex Sans Thai', sans-serif;
    background: var(--admin-bg);
    color: var(--admin-gray);
    margin: 0;
    min-height: 100vh;
}

.admin-shell {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.admin-sidebar {
    width: var(--admin-sidebar-w);
    background: linear-gradient(180deg, var(--admin-gray) 0%, var(--admin-gray-dark) 100%);
    color: #fff;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 1000;
    transition: transform 0.3s var(--admin-ease);
    overflow-y: auto;
}

.admin-brand {
    padding: 1.5rem 1.25rem 1.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.admin-brand-inner {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.admin-brand img {
    height: 40px;
    width: auto;
}

.admin-brand h1 {
    font-size: 1rem;
    font-weight: 700;
    margin: 0;
    color: var(--admin-yellow);
    line-height: 1.2;
}

.admin-brand span {
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.6);
    display: block;
}

.admin-nav {
    flex: 1;
    padding: 1rem 0.75rem;
}

.admin-nav-label {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(255, 255, 255, 0.4);
    padding: 0.5rem 0.75rem;
    margin-top: 0.5rem;
}

.admin-nav a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.7rem 0.85rem;
    margin-bottom: 0.25rem;
    border-radius: 10px;
    color: rgba(255, 255, 255, 0.78);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background 0.25s, color 0.25s, transform 0.25s var(--admin-ease);
}

.admin-nav a .nav-icon {
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
    transition: background 0.25s, transform 0.25s;
}

.admin-nav a:hover {
    background: rgba(248, 210, 71, 0.12);
    color: #fff;
    transform: translateX(3px);
}

.admin-nav a:hover .nav-icon {
    background: rgba(248, 210, 71, 0.2);
}

.admin-nav a.active {
    background: linear-gradient(90deg, rgba(248, 210, 71, 0.25), rgba(248, 210, 71, 0.08));
    color: var(--admin-yellow);
    font-weight: 600;
    box-shadow: inset 3px 0 0 var(--admin-yellow);
}

.admin-nav a.active .nav-icon {
    background: var(--admin-yellow);
    transform: scale(1.05);
}

.admin-sidebar-footer {
    padding: 1rem 0.75rem 1.25rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.admin-sidebar-footer a {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.6rem 0.85rem;
    border-radius: 8px;
    color: rgba(255, 255, 255, 0.65);
    text-decoration: none;
    font-size: 0.85rem;
    transition: background 0.25s, color 0.25s;
}

.admin-sidebar-footer a:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

.admin-sidebar-footer a.logout:hover {
    background: rgba(220, 53, 69, 0.2);
    color: #ff8a8a;
}

/* Main */
.admin-main {
    flex: 1;
    margin-left: var(--admin-sidebar-w);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.admin-topbar {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(85, 88, 89, 0.08);
    padding: 0.85rem 1.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.admin-topbar-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.admin-menu-toggle {
    display: none;
    background: var(--admin-yellow);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    font-size: 1.25rem;
    cursor: pointer;
}

.admin-page-title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--admin-gray);
}

.admin-page-title small {
    display: block;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--admin-gray-light);
    margin-top: 0.1rem;
}

.admin-user-pill {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    background: var(--admin-bg);
    border: 1px solid rgba(85, 88, 89, 0.1);
    border-radius: 50px;
    padding: 0.4rem 1rem 0.4rem 0.4rem;
}

.admin-user-avatar {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--admin-yellow), #ffe680);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--admin-gray);
}

.admin-user-pill .name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--admin-gray);
}

.admin-content {
    padding: 1.75rem;
    flex: 1;
}

/* Stat cards */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--admin-white);
    border-radius: var(--admin-radius);
    padding: 1.35rem;
    box-shadow: var(--admin-shadow);
    border: 1px solid rgba(85, 88, 89, 0.06);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: transform 0.3s var(--admin-ease), box-shadow 0.3s;
    position: relative;
    overflow: hidden;
}

.stat-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--stat-accent, var(--admin-yellow));
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--admin-shadow-lg);
}

.stat-card--services { --stat-accent: #3b82f6; }
.stat-card--promotions { --stat-accent: #f97316; }
.stat-card--news { --stat-accent: #8b5cf6; }
.stat-card--centers { --stat-accent: #10b981; }
.stat-card--messages { --stat-accent: #ef4444; }

.stat-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    flex-shrink: 0;
    background: color-mix(in srgb, var(--stat-accent) 12%, white);
}

.stat-card .num {
    font-size: 1.85rem;
    font-weight: 700;
    color: var(--admin-gray);
    line-height: 1.1;
}

.stat-card .label {
    font-size: 0.85rem;
    color: var(--admin-gray-light);
    margin-top: 0.15rem;
}

/* Cards */
.table-card,
.form-card {
    background: var(--admin-white);
    border-radius: var(--admin-radius);
    padding: 1.5rem;
    box-shadow: var(--admin-shadow);
    border: 1px solid rgba(85, 88, 89, 0.06);
    margin-bottom: 1.5rem;
}

.table-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--admin-yellow-light);
}

.table-card-header h5 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--admin-gray);
}

/* Buttons */
.btn-nt-admin {
    background: linear-gradient(135deg, var(--admin-yellow), #ffe680);
    color: var(--admin-gray);
    border: none;
    font-weight: 600;
    padding: 0.5rem 1.15rem;
    border-radius: 50px;
    transition: transform 0.25s var(--admin-ease), box-shadow 0.25s;
}

.btn-nt-admin:hover {
    background: linear-gradient(135deg, var(--admin-yellow-dark), var(--admin-yellow));
    color: var(--admin-gray);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(248, 210, 71, 0.35);
}

.btn-nt-admin.btn-sm {
    padding: 0.35rem 0.9rem;
    font-size: 0.85rem;
}

/* Quick actions */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 0.75rem;
}

.quick-action-btn {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.85rem 1rem;
    background: var(--admin-bg);
    border: 1px solid rgba(85, 88, 89, 0.1);
    border-radius: 12px;
    color: var(--admin-gray);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 500;
    transition: background 0.25s, border-color 0.25s, transform 0.25s var(--admin-ease);
}

.quick-action-btn:hover {
    background: var(--admin-yellow-light);
    border-color: var(--admin-yellow);
    color: var(--admin-gray);
    transform: translateY(-2px);
}

.quick-action-btn .qa-icon {
    width: 36px;
    height: 36px;
    background: var(--admin-white);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    box-shadow: var(--admin-shadow);
}

/* Tables */
.admin-content .table {
    margin-bottom: 0;
    font-size: 0.9rem;
}

.admin-content .table thead th {
    background: var(--admin-bg);
    border-bottom: 2px solid rgba(248, 210, 71, 0.4);
    font-weight: 600;
    font-size: 0.8rem;
    color: var(--admin-gray-light);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0.85rem 0.75rem;
}

.admin-content .table tbody td {
    padding: 0.85rem 0.75rem;
    vertical-align: middle;
    border-color: rgba(85, 88, 89, 0.06);
}

.admin-content .table-hover tbody tr:hover {
    background: rgba(248, 210, 71, 0.06);
}

.admin-content .badge {
    font-weight: 600;
    padding: 0.4em 0.7em;
    border-radius: 50px;
}

.admin-content .row-unread {
    background: rgba(248, 210, 71, 0.12);
}

.admin-content .row-unread:hover {
    background: rgba(248, 210, 71, 0.2) !important;
}

.empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--admin-gray-light);
}

.empty-state-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
    opacity: 0.6;
}

.empty-state p {
    margin: 0;
    font-size: 0.95rem;
}

.table-card-header .badge {
    font-size: 0.8rem;
}

/* Forms */
.admin-content .form-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--admin-gray);
    margin-bottom: 0.35rem;
}

.admin-content .form-control,
.admin-content .form-select {
    border: 2px solid rgba(85, 88, 89, 0.12);
    border-radius: 10px;
    padding: 0.65rem 0.9rem;
    font-size: 0.9rem;
    transition: border-color 0.25s, box-shadow 0.25s;
}

.admin-content .form-control:focus,
.admin-content .form-select:focus {
    border-color: var(--admin-yellow);
    box-shadow: 0 0 0 3px rgba(248, 210, 71, 0.25);
}

.admin-content .form-check-input:checked {
    background-color: var(--admin-yellow);
    border-color: var(--admin-yellow-dark);
}

/* Alerts */
.admin-content .alert {
    border-radius: 10px;
    border: none;
    font-size: 0.9rem;
}

.admin-content .alert-success {
    background: #ecfdf5;
    color: #065f46;
}

.admin-content .alert-danger {
    background: #fef2f2;
    color: #991b1b;
}

/* Login page */
.login-page {
    font-family: 'IBM Plex Sans Thai', sans-serif;
    background: linear-gradient(135deg, var(--admin-yellow) 0%, var(--admin-yellow-light) 50%, #fff 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(85, 88, 89, 0.06) 0%, transparent 70%);
    top: -100px;
    right: -100px;
}

.login-card {
    background: #fff;
    border-radius: 20px;
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--admin-shadow-lg);
    border: 1px solid rgba(248, 210, 71, 0.3);
    position: relative;
    z-index: 1;
}

.login-brand {
    text-align: center;
    margin-bottom: 1.75rem;
}

.login-brand img {
    height: 56px;
    margin-bottom: 0.75rem;
}

.login-brand h2 {
    color: var(--admin-gray);
    font-weight: 700;
    font-size: 1.35rem;
    margin: 0 0 0.25rem;
}

.login-brand p {
    color: var(--admin-gray-light);
    font-size: 0.9rem;
    margin: 0;
}

.login-card .form-label {
    font-size: 0.85rem;
    font-weight: 600;
}

.login-card .form-control {
    border: 2px solid rgba(85, 88, 89, 0.12);
    border-radius: 10px;
    padding: 0.75rem 1rem;
}

.login-card .form-control:focus {
    border-color: var(--admin-yellow);
    box-shadow: 0 0 0 3px rgba(248, 210, 71, 0.25);
}

.btn-login {
    background: linear-gradient(135deg, var(--admin-gray), var(--admin-gray-dark));
    color: #fff;
    width: 100%;
    padding: 0.85rem;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    transition: transform 0.25s var(--admin-ease), box-shadow 0.25s;
}

.btn-login:hover {
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(85, 88, 89, 0.3);
}

.login-footer {
    text-align: center;
    margin-top: 1.25rem;
}

.login-footer a {
    color: var(--admin-gray-light);
    font-size: 0.85rem;
    text-decoration: none;
}

.login-footer a:hover { color: var(--admin-gray); }

/* Overlay for mobile */
.admin-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 999;
}

/* Responsive */
@media (max-width: 992px) {
    .admin-sidebar {
        transform: translateX(-100%);
    }

    .admin-sidebar.open {
        transform: translateX(0);
    }

    .admin-overlay.show {
        display: block;
    }

    .admin-main {
        margin-left: 0;
    }

    .admin-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .admin-content {
        padding: 1.25rem;
    }
}

@media (max-width: 576px) {
    .stat-grid {
        grid-template-columns: 1fr 1fr;
    }

    .admin-user-pill .name {
        display: none;
    }
}