* {
    box-sizing: border-box;
}

:root {
    --bg-body: #eef2f7;
    --bg-login: linear-gradient(135deg, #dfe7f1 0%, #eef2f7 100%);
    --bg-card: #ffffff;
    --bg-card-soft: #f8fafc;
    --bg-sidebar: #1f2937;
    --bg-sidebar-hover: rgba(255,255,255,0.08);
    --bg-topbar: rgba(255,255,255,0.92);
    --bg-input: #ffffff;
    --bg-primary: #2563eb;
    --bg-primary-hover: #1d4ed8;
    --bg-secondary: #e5e7eb;
    --bg-secondary-hover: #d1d5db;
    --bg-icon-soft: #eff6ff;

    --text-main: #1f2937;
    --text-strong: #111827;
    --text-muted: #6b7280;
    --text-sidebar: #d1d5db;
    --text-sidebar-muted: #9ca3af;
    --text-white: #ffffff;
    --text-primary: #2563eb;

    --border-main: #dce4ee;
    --border-soft: #e5e7eb;
    --border-input: #cfd8e3;
    --border-topbar: #dde5ef;
    --border-sidebar: rgba(255,255,255,0.06);

    --shadow-card: 0 10px 30px rgba(15, 23, 42, 0.05);
    --shadow-login: 0 20px 60px rgba(15, 23, 42, 0.12);
    --shadow-hover: 0 18px 36px rgba(15, 23, 42, 0.08);

    --success-bg: #dcfce7;
    --success-text: #166534;
    --success-border: #bbf7d0;

    --danger-bg: #fee2e2;
    --danger-text: #991b1b;
    --danger-border: #fecaca;
}

body[data-theme="dark"] {
    --bg-body: #0f172a;
    --bg-login: linear-gradient(135deg, #0b1220 0%, #111827 100%);
    --bg-card: #111827;
    --bg-card-soft: #172033;
    --bg-sidebar: #0b1220;
    --bg-sidebar-hover: rgba(255,255,255,0.06);
    --bg-topbar: rgba(17, 24, 39, 0.95);
    --bg-input: #0f172a;
    --bg-primary: #3b82f6;
    --bg-primary-hover: #2563eb;
    --bg-secondary: #243041;
    --bg-secondary-hover: #334155;
    --bg-icon-soft: rgba(59, 130, 246, 0.12);

    --text-main: #dbe4ee;
    --text-strong: #f8fafc;
    --text-muted: #94a3b8;
    --text-sidebar: #dbe4ee;
    --text-sidebar-muted: #94a3b8;
    --text-white: #ffffff;
    --text-primary: #60a5fa;

    --border-main: #253044;
    --border-soft: #233047;
    --border-input: #334155;
    --border-topbar: #243041;
    --border-sidebar: rgba(255,255,255,0.05);

    --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.26);
    --shadow-login: 0 20px 60px rgba(0, 0, 0, 0.35);
    --shadow-hover: 0 18px 36px rgba(0, 0, 0, 0.35);

    --success-bg: rgba(22, 101, 52, 0.2);
    --success-text: #86efac;
    --success-border: rgba(134, 239, 172, 0.2);

    --danger-bg: rgba(153, 27, 27, 0.2);
    --danger-text: #fca5a5;
    --danger-border: rgba(252, 165, 165, 0.2);
}

html, body {
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background: var(--bg-body);
    color: var(--text-main);
    transition: background 0.25s ease, color 0.25s ease;
}

a {
    text-decoration: none;
    color: inherit;
}

.login-body {
    min-height: 100vh;
    background: var(--bg-login);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.login-wrapper {
    width: 100%;
    max-width: 440px;
}

.login-card {
    background: color-mix(in srgb, var(--bg-card) 96%, transparent);
    border: 1px solid var(--border-main);
    border-radius: 18px;
    box-shadow: var(--shadow-login);
    padding: 32px;
}

.login-brand {
    text-align: center;
    margin-bottom: 28px;
}

.brand-badge {
    width: 68px;
    height: 68px;
    margin: 0 auto 14px;
    border-radius: 18px;
    background: linear-gradient(135deg, #1f2937, #334155);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 1px;
}

body[data-theme="dark"] .brand-badge {
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
}

.login-brand h1 {
    margin: 0 0 8px;
    font-size: 28px;
    color: var(--text-strong);
}

.login-brand p {
    margin: 0;
    color: var(--text-muted);
    font-size: 14px;
}

.login-form .form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-main);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 13px 14px;
    border: 1px solid var(--border-input);
    border-radius: 12px;
    background: var(--bg-input);
    color: var(--text-main);
    font-size: 14px;
    outline: none;
    transition: 0.2s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--bg-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.16);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: 12px;
    padding: 12px 18px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s ease;
}

.btn-block {
    width: 100%;
}

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

.btn-primary:hover {
    background: var(--bg-primary-hover);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-strong);
}

.btn-secondary:hover {
    background: var(--bg-secondary-hover);
}

.alert {
    padding: 14px 16px;
    border-radius: 12px;
    margin-bottom: 18px;
    font-size: 14px;
}

.alert-danger {
    background: var(--danger-bg);
    color: var(--danger-text);
    border: 1px solid var(--danger-border);
}

.alert-success {
    background: var(--success-bg);
    color: var(--success-text);
    border: 1px solid var(--success-border);
}

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

.sidebar {
    width: 280px;
    background: var(--bg-sidebar);
    color: var(--text-sidebar);
    padding: 24px 18px;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-sidebar);
    transition: background 0.25s ease;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-sidebar);
}

.sidebar-logo {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, #2563eb, #1e3a8a);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
}

.sidebar-brand h2 {
    margin: 0;
    font-size: 18px;
    color: #fff;
}

.sidebar-brand p {
    margin: 4px 0 0;
    font-size: 12px;
    color: var(--text-sidebar-muted);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.nav-item,
.nav-subitem {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 12px;
    color: var(--text-sidebar);
    transition: 0.2s ease;
}

.nav-item:hover,
.nav-subitem:hover,
.nav-item.active {
    background: var(--bg-sidebar-hover);
    color: #fff;
}

.nav-icon {
    width: 18px;
    height: 18px;
    display: inline-flex;
}

.nav-icon svg {
    width: 18px;
    height: 18px;
    stroke-width: 2;
}

.nav-group {
    display: flex;
    flex-direction: column;
}

.nav-submenu {
    margin-left: 18px;
    margin-top: 4px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-subitem {
    padding: 10px 12px;
    font-size: 13px;
    color: var(--text-sidebar-muted);
}

.logout-link {
    margin-top: 18px;
    border-top: 1px solid var(--border-sidebar);
    padding-top: 16px;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-body);
}

.topbar {
    background: var(--bg-topbar);
    border-bottom: 1px solid var(--border-topbar);
    padding: 22px 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    transition: background 0.25s ease;
}

.topbar h1 {
    margin: 0 0 4px;
    font-size: 24px;
    color: var(--text-strong);
}

.topbar p {
    margin: 0;
    color: var(--text-muted);
    font-size: 14px;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.theme-toggle {
    width: 46px;
    min-width: 46px;
    height: 46px;
    border-radius: 14px;
    border: 1px solid var(--border-main);
    background: var(--bg-card);
    color: var(--text-main);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: 0.2s ease;
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
    padding: 0;
    flex-shrink: 0;
}

.theme-toggle:hover {
    transform: translateY(-1px);
}

.theme-icon {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: 0.25s ease;
}

.theme-icon svg {
    width: 18px;
    height: 18px;
    stroke-width: 2;
}

.sun-icon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

.moon-icon {
    opacity: 0;
    transform: rotate(90deg) scale(0.7);
}

body[data-theme="dark"] .sun-icon {
    opacity: 0;
    transform: rotate(-90deg) scale(0.7);
}

body[data-theme="dark"] .moon-icon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

.content-area {
    padding: 28px;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    margin-bottom: 24px;
}

.stat-card,
.page-card,
.module-card {
    background: var(--bg-card);
    border: 1px solid var(--border-main);
    border-radius: 18px;
    box-shadow: var(--shadow-card);
    transition: background 0.25s ease, border-color 0.25s ease;
}

.stat-card {
    padding: 22px;
}

.stat-label {
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 10px;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-strong);
}

.page-card {
    padding: 24px;
    margin-bottom: 24px;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
}

.section-header h2 {
    margin: 0 0 6px;
    font-size: 20px;
    color: var(--text-strong);
}

.section-header p {
    margin: 0;
    color: var(--text-muted);
    font-size: 14px;
}

.module-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.module-card {
    padding: 20px;
    display: flex;
    gap: 16px;
    transition: 0.2s ease;
}

.module-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.module-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: var(--bg-icon-soft);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.module-icon svg {
    width: 22px;
    height: 22px;
    stroke-width: 2;
}

.module-content h3 {
    margin: 0 0 8px;
    font-size: 17px;
    color: var(--text-strong);
}

.module-content p {
    margin: 0;
    color: var(--text-muted);
    font-size: 13px;
    word-break: break-word;
}

.table-wrap {
    overflow-x: auto;
}

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

.data-table thead th {
    text-align: left;
    font-size: 13px;
    color: var(--text-muted);
    padding: 14px 12px;
    border-bottom: 1px solid var(--border-soft);
}

.data-table tbody td {
    padding: 14px 12px;
    border-bottom: 1px solid var(--border-soft);
    font-size: 14px;
    color: var(--text-main);
}

.badge {
    display: inline-block;
    padding: 6px 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
}

.badge.success {
    background: var(--success-bg);
    color: var(--success-text);
}

.badge.danger {
    background: var(--danger-bg);
    color: var(--danger-text);
}

.empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: 24px !important;
}

.form-card {
    max-width: 1000px;
}

.admin-form .form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.form-check {
    display: flex;
    align-items: end;
}

.check-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: var(--text-main);
}

.check-label input {
    width: auto;
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 22px;
}

.theme-setting-box {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    margin-top: 12px;
}

.theme-choice-card {
    border: 1px solid var(--border-main);
    background: var(--bg-card-soft);
    border-radius: 16px;
    padding: 18px;
    cursor: pointer;
    transition: 0.2s ease;
}

.theme-choice-card:hover {
    border-color: var(--bg-primary);
}

.theme-choice-card input {
    margin-right: 8px;
}

.theme-choice-card h3 {
    margin: 0 0 8px;
    color: var(--text-strong);
    font-size: 16px;
}

.theme-choice-card p {
    margin: 6px 0 0;
    color: var(--text-muted);
    font-size: 13px;
}

.theme-preview {
    margin-top: 12px;
    height: 90px;
    border-radius: 12px;
    border: 1px solid var(--border-main);
    overflow: hidden;
}

.theme-preview.light-preview {
    background: linear-gradient(to bottom, #ffffff 0 35%, #eef2f7 35% 100%);
}

.theme-preview.dark-preview {
    background: linear-gradient(to bottom, #111827 0 35%, #0f172a 35% 100%);
}

.theme-preview::before {
    content: "";
    display: block;
    width: 28%;
    height: 100%;
    background: rgba(37, 99, 235, 0.2);
}

@media (max-width: 1200px) {
    .dashboard-grid,
    .module-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 992px) {
    .sidebar {
        width: 240px;
    }

    .admin-form .form-grid,
    .dashboard-grid,
    .module-grid,
    .theme-setting-box {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .app-shell {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
    }

    .topbar,
    .content-area {
        padding: 18px;
    }

    .section-header,
    .topbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .topbar-actions {
        width: 100%;
        justify-content: space-between;
    }
}

.db-manager-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
}

.db-manager-left,
.db-manager-right {
    min-width: 0;
}

.mini-info-bar {
    margin-bottom: 14px;
    color: var(--text-main);
    font-size: 14px;
}

.link-cell {
    max-width: 420px;
    word-break: break-all;
}

.side-editor-card {
    background: var(--bg-card-soft);
    border: 1px solid var(--border-main);
    border-radius: 18px;
    padding: 20px;
}

.side-editor-card h3 {
    margin-top: 0;
    margin-bottom: 16px;
    color: var(--text-strong);
}

.selected-meta {
    display: grid;
    gap: 8px;
    margin-bottom: 18px;
    font-size: 14px;
    color: var(--text-main);
}

.pagination-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 18px;
}

.pagination-link {
    min-width: 38px;
    height: 38px;
    border-radius: 10px;
    border: 1px solid var(--border-main);
    background: var(--bg-card);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--text-main);
}

.pagination-link.active {
    background: var(--bg-primary);
    color: #fff;
    border-color: var(--bg-primary);
}

.row-selected {
    background: rgba(37, 99, 235, 0.08);
}

.btn-sm {
    padding: 8px 12px;
    font-size: 13px;
    border-radius: 10px;
}

@media (max-width: 1100px) {
    .db-manager-layout {
        grid-template-columns: 1fr;
    }
}

.db-manager-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
}

.db-manager-left,
.db-manager-right {
    min-width: 0;
}

.mini-info-bar {
    margin-bottom: 14px;
    color: var(--text-main);
    font-size: 14px;
}

.link-cell {
    max-width: 360px;
    word-break: break-all;
}

.title-cell {
    min-width: 220px;
}

.muted-mini {
    margin-top: 4px;
    font-size: 12px;
    color: var(--text-muted);
}

.side-editor-card {
    background: var(--bg-card-soft);
    border: 1px solid var(--border-main);
    border-radius: 18px;
    padding: 20px;
}

.side-editor-card h3 {
    margin-top: 0;
    margin-bottom: 16px;
    color: var(--text-strong);
}

.selected-meta {
    display: grid;
    gap: 8px;
    margin-bottom: 18px;
    font-size: 14px;
    color: var(--text-main);
}

.pagination-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 18px;
}

.pagination-link {
    min-width: 38px;
    height: 38px;
    border-radius: 10px;
    border: 1px solid var(--border-main);
    background: var(--bg-card);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--text-main);
}

.pagination-link.active {
    background: var(--bg-primary);
    color: #fff;
    border-color: var(--bg-primary);
}

.row-selected {
    background: rgba(37, 99, 235, 0.08);
}

body[data-theme="dark"] .row-selected {
    background: rgba(59, 130, 246, 0.12);
}

.btn-sm {
    padding: 8px 12px;
    font-size: 13px;
    border-radius: 10px;
}

@media (max-width: 1100px) {
    .db-manager-layout {
        grid-template-columns: 1fr;
    }
}

.bulk-summary-grid {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 16px;
}

.stat-card.compact {
    padding: 18px;
}

@media (max-width: 1200px) {
    .bulk-summary-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 768px) {
    .bulk-summary-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.mode-switch-wrap {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.mode-switch-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 160px;
    padding: 12px 18px;
    border-radius: 12px;
    border: 1px solid var(--border-main);
    background: var(--bg-card);
    color: var(--text-main);
    font-weight: 600;
    transition: 0.2s ease;
}

.mode-switch-btn:hover {
    border-color: var(--bg-primary);
}

.mode-switch-btn.active {
    background: var(--bg-primary);
    color: #fff;
    border-color: var(--bg-primary);
}

.mode-switch-wrap {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.mode-switch-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 160px;
    padding: 12px 18px;
    border-radius: 12px;
    border: 1px solid var(--border-main);
    background: var(--bg-card);
    color: var(--text-main);
    font-weight: 600;
    transition: 0.2s ease;
}

.mode-switch-btn:hover {
    border-color: var(--bg-primary);
}

.mode-switch-btn.active {
    background: var(--bg-primary);
    color: #fff;
    border-color: var(--bg-primary);
}

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

@media (max-width: 1200px) {
    .analytics-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.stat-card {
    padding: 20px;
    border-radius: 14px;
    background: #1e1e2d;
    color: #fff;
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
    transition: 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
}

.stat-label {
    font-size: 13px;
    opacity: 0.8;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    margin-top: 6px;
}

/* Color Variants */
.stat-card.red { border-left: 4px solid #f00505; }
.stat-card.blue { border-left: 4px solid #3b82f6; }
.stat-card.purple { border-left: 4px solid #a855f7; }
.stat-card.warning { border-left: 4px solid #f59e0b; }
.stat-card.success { border-left: 4px solid #22c55e; }
.stat-card.danger { border-left: 4px solid #ef4444; }
.stat-card.neutral { border-left: 4px solid #64748b; }

.analytics-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
}

.stat-card {
    padding: 20px;
    border-radius: 14px;
    background: #1e1e2d;
    color: #fff;
    box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

.stat-label {
    font-size: 13px;
    opacity: 0.8;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    margin-top: 6px;
}

.stat-card.red { border-left: 4px solid #f00505; }
.stat-card.blue { border-left: 4px solid #3b82f6; }
.stat-card.purple { border-left: 4px solid #a855f7; }
.stat-card.warning { border-left: 4px solid #f59e0b; }
.stat-card.success { border-left: 4px solid #22c55e; }
.stat-card.danger { border-left: 4px solid #ef4444; }
.stat-card.neutral { border-left: 4px solid #64748b; }

.progress-wrap {
    display: grid;
    gap: 12px;
}

.progress-meta {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.progress-bar {
    width: 100%;
    height: 16px;
    border-radius: 999px;
    background: rgba(255,255,255,0.08);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, #f00505 0%, #22c55e 100%);
}

@media (max-width: 1200px) {
    .analytics-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* Compact table */
.data-table th,
.data-table td {
    padding: 6px 10px !important;
    font-size: 12px;
}

/* Reduce row height */
.data-table tr {
    height: 48px;
}

/* Thumbnail smaller */
.data-table img {
    width: 70px !important;
    max-height: 45px !important;
}

/* Raw JSON compact */
.data-table pre {
    max-height: 120px !important;
    font-size: 11px;
    line-height: 1.3;
    overflow: auto;
}

/* Title tighter */
.data-table td strong {
    font-size: 13px;
}

/* Badge smaller */
.badge {
    font-size: 11px !important;
    padding: 3px 6px !important;
}