* { box-sizing: border-box; }

body.admin-body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, sans-serif;
    background: #f0f4f8;
    color: #333;
}

.admin-login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0d4a8a, #2E86C1);
    padding: 20px;
}

.admin-login-card {
    background: #fff;
    border-radius: 12px;
    padding: 32px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.admin-login-logo { height: 60px; }
.admin-login-card h4 { color: #1a6fc4; margin-top: 12px; }

.admin-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 250px;
    height: 100vh;
    background: linear-gradient(180deg, #0c1a3a, #0d4a8a);
    color: #fff;
    z-index: 1000;
    transition: transform 0.3s;
    overflow-y: auto;
}

.admin-sidebar-brand {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.admin-sidebar-brand img { height: 45px; }
.admin-sidebar-brand h5 { margin: 8px 0 0; font-size: 14px; }

.admin-nav { list-style: none; padding: 12px 0; margin: 0; }
.admin-nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    font-size: 14px;
    transition: background 0.2s;
}
.admin-nav a:hover, .admin-nav a.active {
    background: rgba(255,255,255,0.12);
    color: #fff;
    text-decoration: none;
}

.admin-main {
    margin-left: 250px;
    min-height: 100vh;
    transition: margin 0.3s;
}

.admin-topbar {
    background: #fff;
    padding: 14px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    position: sticky;
    top: 0;
    z-index: 100;
}

.admin-topbar h1 { font-size: 20px; margin: 0; color: #1a2b42; }

.admin-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    color: #1a6fc4;
    cursor: pointer;
}

.admin-content { padding: 24px; }

.admin-card {
    background: #fff;
    border-radius: 10px;
    padding: 24px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    margin-bottom: 20px;
}

.admin-card h3 { font-size: 18px; margin: 0 0 16px; color: #1a2b42; }

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.admin-stat {
    background: #fff;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    text-align: center;
}

.admin-stat i { font-size: 28px; color: #1a6fc4; }
.admin-stat h4 { font-size: 28px; margin: 8px 0 4px; }
.admin-stat p { margin: 0; color: #888; font-size: 13px; }

.admin-form-group { margin-bottom: 16px; }
.admin-form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: #555; }

.admin-input, .admin-textarea, .admin-select {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid #dde3ea;
    border-radius: 8px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

.admin-input:focus, .admin-textarea:focus, .admin-select:focus {
    border-color: #1a6fc4;
}

.admin-textarea { min-height: 100px; resize: vertical; }

.admin-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: opacity 0.2s;
}

.admin-btn:hover { opacity: 0.9; text-decoration: none; color: inherit; }
.admin-btn-primary { background: #1a6fc4; color: #fff; }
.admin-btn-success { background: #28a745; color: #fff; }
.admin-btn-danger { background: #dc3545; color: #fff; }
.admin-btn-warning { background: #e8913a; color: #fff; }
.admin-btn-sm { padding: 6px 12px; font-size: 12px; }
.admin-btn-block { width: 100%; justify-content: center; margin-top: 8px; }
.admin-btn-link { background: none; color: #1a6fc4; justify-content: center; }

.admin-table-wrap { overflow-x: auto; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.admin-table th, .admin-table td { padding: 12px; text-align: left; border-bottom: 1px solid #eee; }
.admin-table th { background: #f8fafc; font-weight: 600; color: #555; }
.admin-table img { max-height: 60px; border-radius: 6px; }

.admin-alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
}
.admin-alert-success { background: #d4edda; color: #155724; }
.admin-alert-danger { background: #f8d7da; color: #721c24; }

.admin-actions { display: flex; gap: 6px; flex-wrap: wrap; }

.badge-paid { color: #28a745; font-weight: 600; }
.badge-pending { color: #e8913a; font-weight: 600; }
.badge-failed { color: #dc3545; font-weight: 600; }

.admin-nav-label {
    padding: 12px 20px 4px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255,255,255,0.4);
    font-weight: 700;
}

.admin-stat-highlight { border: 2px solid #1a6fc4; }
.admin-stat-balance { border: 2px solid #28a745; }

.admin-summary-bar {
    display: flex;
    gap: 24px;
    padding: 12px 16px;
    background: #f0f8ff;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
}

.admin-tabs {
    list-style: none;
    display: flex;
    gap: 8px;
    padding: 0;
    margin: 20px 0;
    flex-wrap: wrap;
}
.admin-tabs a {
    padding: 8px 16px;
    border-radius: 8px;
    background: #f0f4f8;
    color: #555;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
}
.admin-tabs a.active { background: #1a6fc4; color: #fff; }

.admin-settings-layout {
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.admin-settings-sidebar {
    width: 280px;
    flex-shrink: 0;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
    border: 1px solid rgba(226, 232, 240, 0.9);
    overflow: hidden;
    position: sticky;
    top: 80px;
}

.admin-settings-sidebar-head {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 22px 20px;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 55%, #1a6fc4 100%);
    color: #fff;
}

.admin-settings-brand-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.admin-settings-sidebar-head h4 {
    margin: 0;
    font-size: 17px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.admin-settings-sidebar-head p {
    margin: 4px 0 0;
    font-size: 12px;
    opacity: 0.8;
}

.admin-settings-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 16px;
}

.admin-settings-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 14px 14px 16px;
    border-radius: 14px;
    text-decoration: none;
    color: #334155;
    background: #f8fafc;
    border: 1px solid #e8eef5;
    transition: all 0.25s ease;
    position: relative;
    overflow: hidden;
}

.admin-settings-nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    bottom: 10px;
    width: 4px;
    border-radius: 0 4px 4px 0;
    background: var(--tab-accent);
    opacity: 0;
    transition: opacity 0.25s ease;
}

.admin-settings-nav-item:hover {
    background: #fff;
    border-color: #d7e3f4;
    box-shadow: 0 6px 20px rgba(15, 23, 42, 0.06);
    transform: translateY(-1px);
    text-decoration: none;
    color: #0f172a;
}

.admin-settings-nav-item:hover .admin-settings-nav-icon {
    background: var(--tab-bg);
    color: var(--tab-accent);
}

.admin-settings-nav-item.active {
    background: #fff;
    border-color: color-mix(in srgb, var(--tab-accent) 35%, #fff);
    box-shadow: 0 8px 24px color-mix(in srgb, var(--tab-accent) 18%, transparent);
    color: #0f172a;
}

.admin-settings-nav-item.active::before {
    opacity: 1;
}

.admin-settings-nav-item.active .admin-settings-nav-icon {
    background: var(--tab-accent);
    color: #fff;
    box-shadow: 0 6px 16px color-mix(in srgb, var(--tab-accent) 40%, transparent);
}

.admin-settings-nav-item.active .admin-settings-nav-arrow {
    opacity: 1;
    transform: translateX(0);
    color: var(--tab-accent);
}

.admin-settings-nav-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: #eef2f7;
    color: #64748b;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
    transition: all 0.25s ease;
}

.admin-settings-nav-text {
    display: flex;
    flex-direction: column;
    gap: 3px;
    flex: 1;
    min-width: 0;
}

.admin-settings-nav-text strong {
    font-size: 14px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.01em;
}

.admin-settings-nav-text small {
    font-size: 11px;
    color: #64748b;
    line-height: 1.35;
}

.admin-settings-nav-item.active .admin-settings-nav-text small {
    color: #475569;
}

.admin-settings-nav-arrow {
    font-size: 11px;
    opacity: 0;
    transform: translateX(-4px);
    transition: all 0.25s ease;
    color: #94a3b8;
}

.admin-settings-content {
    flex: 1;
    min-width: 0;
}

.admin-settings-panel {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
    border: 1px solid rgba(226, 232, 240, 0.9);
    overflow: hidden;
}

.admin-settings-panel-head {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px 28px;
    background: linear-gradient(135deg, #fff 0%, var(--tab-bg) 100%);
    border-bottom: 1px solid #eef2f7;
}

.admin-settings-panel-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: var(--tab-accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 8px 20px color-mix(in srgb, var(--tab-accent) 35%, transparent);
    flex-shrink: 0;
}

.admin-settings-panel-head h2 {
    margin: 0;
    font-size: 22px;
    font-weight: 700;
    color: #0f172a;
    letter-spacing: -0.03em;
}

.admin-settings-panel-head p {
    margin: 4px 0 0;
    font-size: 13px;
    color: #64748b;
}

.admin-settings-panel-body {
    padding: 24px 28px 28px;
}

.admin-settings-card {
    border-radius: 14px;
    border: 1px solid #e8eef5;
    box-shadow: none;
    margin-bottom: 20px;
}

.admin-settings-card:last-child {
    margin-bottom: 0;
}

.admin-settings-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid #f1f5f9;
}

.admin-settings-card-head h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 700;
    color: #1e293b;
}

.admin-settings-chip {
    display: inline-flex;
    align-items: center;
    padding: 5px 12px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    color: #475569;
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
}

.admin-settings-count {
    display: inline-flex;
    align-items: center;
    padding: 5px 12px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    color: var(--tab-accent);
    background: var(--tab-bg);
}

.admin-settings-preview {
    margin-bottom: 16px;
    padding: 12px;
    background: #f8fafc;
    border-radius: 12px;
    border: 1px dashed #cbd5e1;
    display: inline-block;
}

.admin-settings-preview img {
    max-height: 120px;
    border-radius: 10px;
    display: block;
}

.admin-settings-video-wrap {
    border-radius: 14px;
    overflow: hidden;
    margin-bottom: 16px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

.admin-settings-card-narrow {
    max-width: 520px;
}

.admin-pagination { display: flex; gap: 6px; margin-top: 16px; flex-wrap: wrap; }

.admin-search-form { margin-bottom: 16px; }

.att-month-scroll {
    overflow-x: auto;
    border: 1px solid #dde3ea;
    border-radius: 8px;
    background: #fff;
}

.att-month-grid {
    border-collapse: collapse;
    font-size: 12px;
    min-width: 100%;
}

.att-month-grid th,
.att-month-grid td {
    border: 1px solid #eee;
    padding: 4px 2px;
    text-align: center;
    vertical-align: middle;
}

.att-month-grid th {
    background: #f0f4f8;
    font-weight: 600;
    color: #555;
    white-space: nowrap;
}

.att-staff-col {
    position: sticky;
    left: 0;
    background: #fff;
    z-index: 2;
    min-width: 120px;
    text-align: left !important;
    padding-left: 10px !important;
    font-weight: 600;
}

.att-month-grid thead .att-staff-col { background: #f0f4f8; }

.att-day-col { min-width: 42px; }
.att-day-col small { font-size: 9px; color: #888; }

.att-total-col {
    position: sticky;
    right: 0;
    background: #f8fafc;
    min-width: 50px;
    font-weight: 700;
    color: #1a6fc4;
}

.att-select {
    width: 38px;
    padding: 2px;
    font-size: 11px;
    border: 1px solid #ccc;
    border-radius: 4px;
    cursor: pointer;
    text-align: center;
}

.att-select.att-p { background: #d4edda; border-color: #28a745; }
.att-select.att-h { background: #fff3cd; border-color: #e8913a; }
.att-select.att-a { background: #f8d7da; border-color: #dc3545; }

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

@media (max-width: 768px) {
    .admin-sidebar { transform: translateX(-100%); }
    .admin-sidebar.open { transform: translateX(0); }
    .admin-main { margin-left: 0; }
    .admin-menu-toggle { display: block; }
    .admin-overlay.show { display: block; }
    .admin-content { padding: 16px; }
    .admin-topbar h1 { font-size: 16px; }
    .admin-settings-layout { flex-direction: column; }
    .admin-settings-sidebar {
        width: 100%;
        position: static;
    }
    .admin-settings-panel-head,
    .admin-settings-panel-body {
        padding-left: 18px;
        padding-right: 18px;
    }
    .admin-settings-nav-item.active .admin-settings-nav-arrow {
        opacity: 1;
    }
}