:root {
    --admin-bg: #f1f5f9;
    --admin-surface: #ffffff;
    --admin-surface-2: #ffffff;
    --admin-surface-3: #f8fafc;
    --admin-border: #e2e8f0;
    --admin-text: #1e293b;
    --admin-heading: #0f172a;
    --admin-muted: #64748b;
    --admin-accent: #6366f1;
    --admin-accent-hover: #5558e3;
    --admin-accent-soft: rgba(99, 102, 241, 0.1);
    --admin-success: #16a34a;
    --admin-danger: #dc2626;
    --admin-warning: #d97706;
    --admin-info: #2563eb;
    --admin-radius: 12px;
    --admin-shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 16px rgba(15, 23, 42, 0.06);
    --sidebar-width: 248px;
}

* {
    box-sizing: border-box;
}

body.admin-body {
    margin: 0;
    font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
    background: var(--admin-bg);
    color: var(--admin-text);
    min-height: 100vh;
}

a {
    color: var(--admin-accent);
    text-decoration: none;
}

a:hover {
    color: var(--admin-accent-hover);
}

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

/* ── Sidebar ── */
.admin-sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    background: var(--admin-surface);
    border-right: 1px solid var(--admin-border);
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    padding: 0.85rem 0.75rem;
    box-shadow: 1px 0 0 rgba(15, 23, 42, 0.04);
}

.admin-brand {
    margin: 0.25rem 0.35rem 1rem;
    padding: 0.85rem 0.9rem;
    border-radius: var(--admin-radius);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(99, 102, 241, 0.04) 100%);
    border: 1px solid rgba(99, 102, 241, 0.15);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.admin-brand .brand-logo {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, #6366f1, #818cf8);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.15rem;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}

.admin-brand .brand-title {
    font-size: 0.95rem;
    font-weight: 700;
    margin: 0;
    color: var(--admin-heading);
    line-height: 1.2;
}

.admin-brand .brand-subtitle {
    font-size: 0.7rem;
    color: var(--admin-muted);
    margin: 0.15rem 0 0;
}

.admin-nav {
    padding: 0 0.35rem;
    flex: 1;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 0.5rem;
}

.nav-section-label {
    display: block;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #94a3b8;
    font-weight: 600;
    padding: 0.5rem 0.75rem 0.35rem;
}

.admin-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    color: #475569;
    padding: 0.58rem 0.75rem;
    border-radius: 10px;
    margin-bottom: 0.1rem;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.15s ease;
}

.admin-nav .nav-link span {
    flex: 1;
}

.admin-nav .nav-link i {
    font-size: 1rem;
    width: 1.15rem;
    text-align: center;
    opacity: 0.85;
}

.admin-nav .nav-link:hover {
    background: #f1f5f9;
    color: var(--admin-heading);
}

.admin-nav .nav-link.active {
    background: var(--admin-accent);
    color: #fff;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.admin-nav .nav-link.active i {
    opacity: 1;
}

.admin-sidebar-footer {
    padding: 0.75rem 0.35rem 0.25rem;
    margin-top: auto;
}

.admin-user-chip {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.75rem;
    margin-bottom: 0.65rem;
    border-radius: 10px;
    background: var(--admin-surface-3);
    border: 1px solid var(--admin-border);
}

.admin-user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--admin-accent), #818cf8);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.admin-user-info {
    min-width: 0;
}

.admin-user-info strong {
    display: block;
    font-size: 0.82rem;
    color: var(--admin-heading);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.admin-user-info span {
    font-size: 0.72rem;
    color: var(--admin-muted);
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.btn-logout {
    background: #fff;
    border: 1px solid var(--admin-border);
    color: #475569;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.55rem 1rem;
    border-radius: 10px;
    width: 100%;
    transition: all 0.15s ease;
    cursor: pointer;
}

.btn-logout:hover {
    background: #f8fafc;
    color: var(--admin-heading);
    border-color: #cbd5e1;
}

/* ── Main ── */
.admin-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    background: var(--admin-bg);
}

.admin-topbar {
    padding: 1.25rem 2rem 0.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    background: var(--admin-bg);
}

.admin-topbar.is-hidden {
    display: none;
}

.admin-topbar h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    color: var(--admin-heading);
}

.admin-topbar-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 0;
}

.admin-topbar-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.btn-sidebar-toggle {
    background: #fff;
    border: 1px solid var(--admin-border);
    color: var(--admin-text);
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 0;
    cursor: pointer;
}

.btn-sidebar-toggle:hover {
    background: var(--admin-accent-soft);
    color: var(--admin-accent);
    border-color: rgba(99, 102, 241, 0.3);
}

.admin-sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.4);
    z-index: 1040;
}

.admin-sidebar-backdrop.show {
    display: block;
}

.admin-content {
    padding: 0 2rem 2rem;
}

.admin-content.dashboard-content {
    padding-top: 1.5rem;
}

/* ── Cards ── */
.admin-card {
    background: var(--admin-surface-2);
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
    box-shadow: var(--admin-shadow);
}

.admin-card .card-header {
    background: transparent;
    border-bottom: 1px solid var(--admin-border);
    padding: 1rem 1.25rem;
    font-weight: 600;
    color: var(--admin-heading);
}

.admin-card .card-body {
    padding: 1.25rem;
}

/* ── Stats ── */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--admin-surface-2);
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
    padding: 1.15rem 1.25rem;
    position: relative;
    overflow: hidden;
    min-height: 110px;
    box-shadow: var(--admin-shadow);
}

.stat-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--stat-accent, var(--admin-accent));
    border-radius: var(--admin-radius) var(--admin-radius) 0 0;
}

.stat-card.stat-success { --stat-accent: var(--admin-success); }
.stat-card.stat-info { --stat-accent: var(--admin-info); }
.stat-card.stat-warning { --stat-accent: var(--admin-warning); }
.stat-card.stat-danger { --stat-accent: var(--admin-danger); }

.stat-card .stat-label {
    color: var(--admin-muted);
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.stat-card .stat-value {
    font-size: 2.25rem;
    font-weight: 700;
    line-height: 1;
    color: var(--admin-heading);
}

.stat-card .stat-icon {
    position: absolute;
    right: 1rem;
    bottom: 1rem;
    font-size: 2.75rem;
    opacity: 0.1;
    color: var(--stat-accent, var(--admin-accent));
}

/* ── Dashboard ── */
.dashboard-header,
.dashboard-welcome {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1.5rem;
    margin-bottom: 1.75rem;
}

.dashboard-header-text h2,
.dashboard-welcome-text h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0 0 0.35rem;
    color: var(--admin-heading);
    letter-spacing: -0.02em;
}

.dashboard-header-text p,
.dashboard-welcome-text p {
    margin: 0;
    color: var(--admin-muted);
    font-size: 0.925rem;
}

.dashboard-header-date,
.dashboard-welcome-date {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--admin-muted);
    font-size: 0.875rem;
    white-space: nowrap;
    flex-shrink: 0;
    padding-top: 0.35rem;
}

.section-heading {
    margin-bottom: 1rem;
}

.section-heading h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin: 0 0 0.25rem;
    color: var(--admin-heading);
}

.feature-menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 0.875rem;
    margin-bottom: 1.5rem;
}

.feature-menu-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.15rem;
    background: var(--admin-surface-2);
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
    color: inherit;
    transition: all 0.18s ease;
    text-decoration: none;
    box-shadow: var(--admin-shadow);
}

.feature-menu-card:hover {
    border-color: rgba(99, 102, 241, 0.35);
    background: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
    color: inherit;
}

.feature-menu-icon {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
    color: #fff;
}

.feature-menu-icon.icon-purple { background: linear-gradient(135deg, #6366f1, #818cf8); }
.feature-menu-icon.icon-blue { background: linear-gradient(135deg, #3b82f6, #60a5fa); }
.feature-menu-icon.icon-green { background: linear-gradient(135deg, #10b981, #34d399); }
.feature-menu-icon.icon-orange { background: linear-gradient(135deg, #f59e0b, #fbbf24); }
.feature-menu-icon.icon-cyan { background: linear-gradient(135deg, #06b6d4, #22d3ee); }
.feature-menu-icon.icon-teal { background: linear-gradient(135deg, #14b8a6, #2dd4bf); }
.feature-menu-icon.icon-indigo { background: linear-gradient(135deg, #4f46e5, #6366f1); }
.feature-menu-icon.icon-red { background: linear-gradient(135deg, #ef4444, #f87171); }

.feature-menu-body { flex: 1; min-width: 0; }
.feature-menu-body h4 { font-size: 0.95rem; font-weight: 600; margin: 0 0 0.2rem; color: var(--admin-heading); }
.feature-menu-body p { font-size: 0.78rem; color: var(--admin-muted); margin: 0; line-height: 1.35; }
.feature-menu-arrow { color: #94a3b8; font-size: 0.9rem; flex-shrink: 0; transition: transform 0.15s ease; }
.feature-menu-card:hover .feature-menu-arrow { color: var(--admin-accent); transform: translateX(3px); }

.overview-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.45rem 0;
    border-bottom: 1px solid var(--admin-border);
}

.quick-actions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.65rem;
}

.quick-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.75rem 0.5rem;
    border-radius: 10px;
    background: var(--admin-surface-3);
    border: 1px solid var(--admin-border);
    color: var(--admin-text);
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.15s ease;
}

.quick-action-btn:hover {
    background: var(--admin-accent-soft);
    border-color: rgba(99, 102, 241, 0.35);
    color: var(--admin-accent);
}

/* ── Tables ── */
.table-admin {
    --bs-table-bg: transparent;
    --bs-table-color: var(--admin-text);
    --bs-table-border-color: var(--admin-border);
    --bs-table-hover-bg: #f8fafc;
    margin-bottom: 0;
}

.table-admin thead th {
    color: var(--admin-muted);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
    border-bottom-width: 1px;
    white-space: nowrap;
    background: var(--admin-surface-3);
}

.table-admin tbody td {
    vertical-align: middle;
}

.badge-status-online {
    background: #dcfce7;
    color: #15803d;
    border: 1px solid #bbf7d0;
}

.badge-status-offline {
    background: #fee2e2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.badge-enabled {
    background: #eef2ff;
    color: #4338ca;
    border: 1px solid #c7d2fe;
}

.badge-disabled {
    background: #f1f5f9;
    color: #64748b;
    border: 1px solid #e2e8f0;
}

.badge-premium {
    background: #fef3c7;
    color: #b45309;
    border: 1px solid #fde68a;
}

/* ── Forms ── */
.form-control,
.form-select {
    background-color: #fff;
    border-color: var(--admin-border);
    color: var(--admin-text);
}

.form-control:focus,
.form-select:focus {
    background-color: #fff;
    border-color: rgba(99, 102, 241, 0.5);
    color: var(--admin-text);
    box-shadow: 0 0 0 0.2rem rgba(99, 102, 241, 0.15);
}

.form-control::placeholder {
    color: #94a3b8;
}

.form-label {
    color: #374151;
    font-weight: 500;
    font-size: 0.9rem;
}

.form-text {
    color: var(--admin-muted);
}

.form-check-input {
    background-color: #fff;
    border-color: #cbd5e1;
}

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

.form-check-label {
    color: #374151;
}

.btn-accent {
    background: var(--admin-accent);
    border-color: var(--admin-accent);
    color: #fff;
}

.btn-accent:hover,
.btn-accent:focus {
    background: var(--admin-accent-hover);
    border-color: var(--admin-accent-hover);
    color: #fff;
}

.btn-outline-accent {
    color: var(--admin-accent);
    border-color: rgba(99, 102, 241, 0.45);
    background: #fff;
}

.btn-outline-accent:hover {
    background: var(--admin-accent-soft);
    border-color: var(--admin-accent);
    color: var(--admin-accent-hover);
}

.alert-admin {
    border-radius: var(--admin-radius);
    border: 1px solid transparent;
}

.alert-success.alert-admin {
    background: #f0fdf4;
    border-color: #bbf7d0;
    color: #15803d;
}

.alert-danger.alert-admin {
    background: #fef2f2;
    border-color: #fecaca;
    color: #b91c1c;
}

.text-muted-admin {
    color: var(--admin-muted) !important;
}

.section-divider {
    border-top: 1px solid var(--admin-border);
    margin: 1.5rem 0;
    padding-top: 1.5rem;
}

.section-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--admin-muted);
    margin-bottom: 1rem;
    font-weight: 600;
}

.pagination {
    --bs-pagination-bg: #fff;
    --bs-pagination-border-color: var(--admin-border);
    --bs-pagination-color: var(--admin-text);
    --bs-pagination-hover-bg: var(--admin-accent-soft);
    --bs-pagination-hover-color: var(--admin-accent);
    --bs-pagination-active-bg: var(--admin-accent);
    --bs-pagination-active-border-color: var(--admin-accent);
}

code {
    color: #be185d;
    background: #fdf2f8;
    padding: 0.1em 0.35em;
    border-radius: 4px;
    font-size: 0.875em;
}

/* ── Login ── */
.login-body {
    background: #f1f5f9;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-page {
    width: 100%;
    max-width: 420px;
    padding: 1.5rem;
}

.login-card {
    background: #fff;
    border-radius: 16px;
    padding: 2.5rem 2rem;
    box-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
    border: 1px solid var(--admin-border);
}

.login-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--admin-heading);
    margin: 0 0 0.35rem;
    text-align: center;
}

.login-subtitle {
    color: var(--admin-muted);
    text-align: center;
    margin: 0 0 1.75rem;
}

.login-field {
    margin-bottom: 1.25rem;
}

.login-field label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: #374151;
    margin-bottom: 0.4rem;
}

.login-input-wrap {
    position: relative;
}

.login-input-wrap .input-icon {
    position: absolute;
    left: 0.85rem;
    top: 50%;
    transform: translateY(-50%);
    color: #9ca3af;
    font-size: 1rem;
}

.login-input-wrap input {
    width: 100%;
    padding: 0.75rem 0.85rem 0.75rem 2.5rem;
    border: 1px solid var(--admin-border);
    border-radius: 8px;
    font-size: 0.95rem;
    outline: none;
    background: #fff;
    color: var(--admin-text);
}

.login-input-wrap input:focus {
    border-color: #6366f1;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.login-input-wrap.password-wrap input {
    padding-right: 2.75rem;
}

.login-toggle-password {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #9ca3af;
    cursor: pointer;
}

.btn-login {
    width: 100%;
    margin-top: 0.5rem;
    padding: 0.75rem 1rem;
    background: #6366f1;
    border: none;
    border-radius: 10px;
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
}

.btn-login:hover {
    background: #5558e3;
}

.login-alert {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.login-alert-danger {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #b91c1c;
}

/* ── Server list ── */
.server-list { display: flex; flex-direction: column; }

.server-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--admin-border);
}

.server-list-item:last-child { border-bottom: none; }

.server-list-main {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    min-width: 0;
}

.server-flag { border-radius: 4px; object-fit: cover; flex-shrink: 0; }

.server-flag-placeholder {
    width: 32px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--admin-surface-3);
    border-radius: 4px;
    color: var(--admin-muted);
    border: 1px solid var(--admin-border);
}

.server-list-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.server-toggle .form-check-input { cursor: pointer; }

/* ── Server modal ── */
.server-modal .modal-content {
    background: #fff;
    color: #1f2937;
    border: none;
    border-radius: 12px;
    box-shadow: 0 20px 50px rgba(15, 23, 42, 0.15);
}

.server-modal .modal-title { color: var(--admin-heading); }
.server-modal .form-label { color: #374151; font-weight: 500; }
.server-modal .form-control,
.server-modal .form-select {
    background: #fff;
    border: 1px solid var(--admin-border);
    color: var(--admin-text);
    border-radius: 8px;
}

.password-field-wrap { position: relative; }
.password-field-wrap .form-control { padding-right: 2.75rem; }

.password-toggle-btn {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    border: none;
    background: none;
    color: #9ca3af;
    cursor: pointer;
}

/* ── Admob settings ── */
.ads-settings-card .card-body,
.ads-help-card .card-body { padding: 1.5rem; }

.ads-section-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--admin-heading);
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--admin-border);
}

.ads-section-header i { color: var(--admin-accent); }

.ads-units-table-wrap {
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius);
    overflow: hidden;
    background: #fff;
}

.ads-units-table {
    margin: 0;
    color: var(--admin-text);
    --bs-table-bg: transparent;
    --bs-table-color: var(--admin-text);
    --bs-table-border-color: var(--admin-border);
}

.ads-units-table thead th {
    background: var(--admin-surface-3);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--admin-muted);
    font-weight: 600;
    padding: 0.85rem 1rem;
}

.ads-units-table tbody td {
    padding: 0.85rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--admin-border);
}

.ads-type-label { font-weight: 500; white-space: nowrap; color: var(--admin-heading); }

.ads-units-table .form-control {
    background: #fff;
    border-color: var(--admin-border);
    color: var(--admin-text);
}

.ads-status-switch .form-check-input {
    width: 2.75rem;
    height: 1.4rem;
    cursor: pointer;
}

.ads-status-switch .form-check-input:checked {
    background-color: var(--admin-success);
    border-color: var(--admin-success);
}

.ads-help-card {
    border-left: 3px solid var(--admin-info);
    background: #f0f9ff;
}

.ads-help-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--admin-info);
}

.ads-help-list {
    padding-left: 1.25rem;
    color: #475569;
    font-size: 0.9rem;
}

/* ── Responsive ── */
@media (max-width: 991.98px) {
    .admin-layout {
        display: block;
    }

    .admin-sidebar {
        position: fixed !important;
        left: 0;
        top: 0;
        bottom: 0;
        width: min(var(--sidebar-width), 88vw);
        max-width: 300px;
        height: 100vh !important;
        height: 100dvh !important;
        z-index: 1050;
        transform: translateX(-100%);
        transition: transform 0.25s ease;
        box-shadow: 0 8px 32px rgba(15, 23, 42, 0.18);
        border-right: 1px solid var(--admin-border);
    }

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

    .admin-main {
        width: 100%;
        min-height: 100vh;
        min-height: 100dvh;
    }

    .admin-topbar {
        position: sticky;
        top: 0;
        z-index: 1020;
        padding: 0.85rem 1rem;
        background: var(--admin-bg);
        border-bottom: 1px solid var(--admin-border);
        box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
    }

    .admin-topbar h1 {
        font-size: 1.15rem;
        line-height: 1.3;
    }

    .admin-topbar-left {
        flex: 1;
        min-width: 0;
    }

    .admin-topbar-left > div:last-child {
        min-width: 0;
    }

    .admin-topbar-actions {
        width: 100%;
        justify-content: flex-start;
        flex-wrap: wrap;
    }

    .admin-topbar-actions .btn {
        width: 100%;
    }

    .btn-sidebar-toggle {
        display: inline-flex !important;
        flex-shrink: 0;
    }

    .admin-mobile-title {
        font-size: 0.95rem;
        font-weight: 700;
        color: var(--admin-heading);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    body.admin-sidebar-open {
        overflow: hidden;
        touch-action: none;
    }

    .stat-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .dashboard-welcome,
    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .dashboard-header h2 {
        font-size: 1.35rem;
    }

    .dashboard-header-date {
        font-size: 0.85rem;
    }

    .feature-menu-grid {
        grid-template-columns: 1fr;
    }

    .admin-content {
        padding: 0 1rem 1.5rem;
    }

    .admin-content.dashboard-content {
        padding-top: 1rem;
    }

    .server-list-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .server-list-meta {
        width: 100%;
        justify-content: space-between;
    }

    .quick-actions-grid {
        grid-template-columns: 1fr;
    }

    .admin-card .card-body {
        padding: 1rem;
    }

    .modal-dialog {
        margin: 0.75rem;
    }
}

@media (max-width: 575.98px) {
    .stat-grid {
        grid-template-columns: 1fr;
    }

    .admin-topbar {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .admin-topbar h1 {
        font-size: 1.05rem;
    }

    .text-muted-admin {
        font-size: 0.82rem;
    }

    .stat-card {
        min-height: 96px;
        padding: 1rem;
    }

    .stat-value {
        font-size: 1.5rem;
    }
}