/* ============================================
   FACTURACION DASHBOARD - Premium CSS
   ============================================ */

/* === CSS Variables === */
:root {
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;

    --bg-body: #f0f2f5;
    --bg-card: #ffffff;
    --bg-sidebar: #1e1b4b;
    --bg-sidebar-hover: #312e81;
    --bg-input: #f8fafc;
    --bg-topbar: #ffffff;

    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-sidebar: #c7d2fe;
    --text-sidebar-active: #ffffff;

    --border: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,.08);
    --shadow-lg: 0 10px 30px rgba(0,0,0,.1);
    --shadow-xl: 0 20px 50px rgba(0,0,0,.12);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    --sidebar-width: 260px;
    --sidebar-collapsed: 72px;
    --topbar-height: 64px;
    --transition: .3s cubic-bezier(.4,0,.2,1);
    --theme-close-btn-filter: none;
}

/* === Dark Theme === */
[data-theme="dark"] {
    --bg-body: #0f172a;
    --bg-card: #1e293b;
    --bg-sidebar: #0f172a;
    --bg-sidebar-hover: #1e293b;
    --bg-input: #334155;
    --bg-topbar: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border: #334155;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.2);
    --shadow-md: 0 4px 12px rgba(0,0,0,.3);
    --shadow-lg: 0 10px 30px rgba(0,0,0,.4);
    --theme-close-btn-filter: invert(1) grayscale(1) brightness(2);
}

/* === Base === */
* { margin:0; padding:0; box-sizing:border-box; }
body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-body);
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
}

/* === Global Loader === */
.global-loader {
    position: fixed; inset: 0;
    background: rgba(15,23,42,.7);
    backdrop-filter: blur(8px);
    z-index: 9999;
    display: flex; align-items: center; justify-content: center;
}
.loader-content { text-align: center; }
.loader-spinner {
    width: 56px; height: 56px;
    border: 4px solid rgba(99,102,241,.2);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin .8s linear infinite;
    margin: 0 auto 16px;
}
.loader-text { color: #fff; font-weight: 500; font-size: .95rem; }
@keyframes spin { to { transform: rotate(360deg); } }

/* === Sidebar === */
.sidebar {
    position: fixed; left: 0; top: 0; bottom: 0;
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    z-index: 1000;
    display: flex; flex-direction: column;
    transition: width var(--transition);
    overflow: hidden;
}
.sidebar.collapsed { 
    width: var(--sidebar-collapsed); 
    overflow: visible !important;
}
.sidebar.collapsed .sidebar-nav {
    overflow: visible !important;
}
.sidebar.collapsed .sidebar-title { 
    display: none; 
}
.sidebar.collapsed .sidebar-header { justify-content: center; padding: 16px 0; }
.sidebar.collapsed .sidebar-toggle i { transform: rotate(180deg); }
.sidebar.collapsed .sidebar-menu-item a { justify-content: center; padding: 14px 0; }
.sidebar.collapsed .sidebar-footer { padding: 12px 8px; overflow: visible !important; }
.sidebar.collapsed .theme-toggle { justify-content: center; position: relative; overflow: visible !important; }

/* Tooltips Deslizantes en Hover */
.sidebar.collapsed .sidebar-menu-item {
    position: relative;
    overflow: visible !important;
}

.sidebar.collapsed .sidebar-menu-item span {
    display: block;
    position: absolute;
    left: 68px;
    top: 50%;
    transform: translateY(-50%) translateX(10px);
    background: var(--bg-sidebar-hover);
    color: #ffffff;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1), transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.2s ease;
    box-shadow: var(--shadow-lg);
    z-index: 1050;
    border-left: 3px solid var(--primary);
    pointer-events: none;
}

.sidebar.collapsed .sidebar-menu-item:hover span {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(0);
}

.sidebar.collapsed .theme-toggle span {
    display: block;
    position: absolute;
    left: 68px;
    top: 50%;
    transform: translateY(-50%) translateX(10px);
    background: var(--bg-sidebar-hover);
    color: #ffffff;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1), transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.2s ease;
    box-shadow: var(--shadow-lg);
    z-index: 1050;
    border-left: 3px solid var(--primary);
    pointer-events: none;
}

.sidebar.collapsed .theme-toggle:hover span {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(0);
}

.sidebar-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 20px 20px 16px; border-bottom: 1px solid rgba(255,255,255,.08);
}
.sidebar-logo {
    display: flex; align-items: center; gap: 12px;
    color: #fff; font-size: 1.1rem; font-weight: 700;
}
.sidebar-logo i { font-size: 1.5rem; color: var(--primary-light); }
.sidebar-toggle {
    background: none; border: none; color: var(--text-sidebar);
    cursor: pointer; font-size: 1rem; padding: 4px;
    transition: color var(--transition);
}
.sidebar-toggle:hover { color: #fff; }

.sidebar-nav { flex: 1; padding: 12px 0; overflow-y: auto; }
.sidebar-menu { list-style: none; padding: 0 8px; }
.sidebar-menu-item { margin-bottom: 2px; }
.sidebar-menu-item a {
    display: flex; align-items: center; gap: 14px;
    padding: 12px 16px; color: var(--text-sidebar);
    text-decoration: none; border-radius: var(--radius-sm);
    font-size: .9rem; font-weight: 500;
    transition: all var(--transition);
}
.sidebar-menu-item a:hover {
    background: var(--bg-sidebar-hover); color: #fff;
}
.sidebar-menu-item.active a {
    background: var(--primary); color: #fff;
    box-shadow: 0 4px 12px rgba(99,102,241,.4);
}
.sidebar-menu-item a i { font-size: 1.1rem; width: 22px; text-align: center; }

.sidebar-footer {
    padding: 12px 16px; border-top: 1px solid rgba(255,255,255,.08);
}
.theme-toggle {
    display: flex; align-items: center; gap: 12px;
    background: rgba(255,255,255,.06); border: none; color: var(--text-sidebar);
    padding: 10px 14px; border-radius: var(--radius-sm);
    cursor: pointer; width: 100%; font-size: .85rem; font-weight: 500;
    transition: all var(--transition);
}
.theme-toggle:hover { background: rgba(255,255,255,.12); color: #fff; }

/* === Main Content === */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: margin-left var(--transition);
}
.sidebar.collapsed ~ .main-content { margin-left: var(--sidebar-collapsed); }

.top-bar {
    position: sticky; top: 0; z-index: 100;
    background: var(--bg-topbar);
    border-bottom: 1px solid var(--border);
    padding: 0 28px; height: var(--topbar-height);
    display: flex; align-items: center; gap: 16px;
    box-shadow: var(--shadow-sm);
}
.top-bar-title h1 { font-size: 1.25rem; font-weight: 700; color: var(--text-primary); }
.top-bar-actions { margin-left: auto; display: flex; align-items: center; gap: 16px; }
.current-date {
    display: flex; align-items: center; gap: 8px;
    color: var(--text-secondary); font-size: .85rem; font-weight: 500;
}
.mobile-toggle {
    display: none; background: none; border: none;
    font-size: 1.2rem; color: var(--text-primary); cursor: pointer;
}
.content-wrapper { padding: 24px 28px; }

/* === KPI Cards === */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px; margin-bottom: 28px;
}
.kpi-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 22px 24px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
    position: relative; overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
}
.kpi-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}
.kpi-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0;
    height: 4px; border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.kpi-card.kpi-borradores::before { background: linear-gradient(90deg, var(--primary), var(--secondary)); }
.kpi-card.kpi-publicados::before { background: linear-gradient(90deg, var(--info), var(--accent)); }
.kpi-card.kpi-pendientes::before { background: linear-gradient(90deg, var(--warning), #fbbf24); }
.kpi-card.kpi-realizados::before { background: linear-gradient(90deg, var(--success), #34d399); }
.kpi-card.kpi-otro::before { background: linear-gradient(90deg, #f97316, var(--warning)); }
.kpi-card.kpi-sin-asignacion::before { background: linear-gradient(90deg, var(--danger), #f87171); }
.kpi-card.kpi-cumplimiento::before { background: linear-gradient(90deg, var(--accent), var(--success)); }

.kpi-icon {
    width: 48px; height: 48px; border-radius: var(--radius-md);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem; margin-bottom: 14px;
}
.kpi-borradores .kpi-icon { background: rgba(99,102,241,.1); color: var(--primary); }
.kpi-publicados .kpi-icon { background: rgba(59,130,246,.1); color: var(--info); }
.kpi-pendientes .kpi-icon { background: rgba(245,158,11,.1); color: var(--warning); }
.kpi-realizados .kpi-icon { background: rgba(16,185,129,.1); color: var(--success); }
.kpi-otro .kpi-icon { background: rgba(249,115,22,.1); color: #f97316; }
.kpi-sin-asignacion .kpi-icon { background: rgba(239,68,68,.1); color: var(--danger); }
.kpi-cumplimiento .kpi-icon { background: rgba(6,182,212,.1); color: var(--accent); }

.kpi-value {
    font-size: 1.8rem; font-weight: 800; color: var(--text-primary);
    line-height: 1; margin-bottom: 6px;
}
.kpi-label { font-size: .8rem; font-weight: 500; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .5px; }

/* === Cards (General) === */
.card-modern {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
}
.card-modern:hover { box-shadow: var(--shadow-lg); }
.card-header-modern {
    padding: 18px 24px;
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
}
.card-header-modern h3 {
    font-size: 1rem; font-weight: 700; color: var(--text-primary);
    display: flex; align-items: center; gap: 10px;
}
.card-header-modern h3 i { color: var(--primary); }
.card-body-modern { padding: 24px; }

/* === Charts Grid === */
.charts-grid {
    display: grid; grid-template-columns: repeat(2, 1fr);
    gap: 24px; margin-bottom: 28px;
}
.chart-container { position: relative; height: 300px; }

/* === Upload Zone === */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 24px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition);
    background: var(--bg-input);
}
.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--primary);
    background: rgba(99,102,241,.05);
}
.upload-zone i { font-size: 2.5rem; color: var(--primary); margin-bottom: 12px; }
.upload-zone p { color: var(--text-secondary); font-size: .9rem; margin: 0; }
.upload-zone .upload-label { font-weight: 600; color: var(--text-primary); font-size: 1rem; margin-bottom: 4px; }

/* === Upload Buttons === */
.upload-actions {
    display: flex; gap: 16px; margin-bottom: 28px; flex-wrap: wrap;
}
.btn-upload {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600; font-size: .9rem;
    border: none; cursor: pointer;
    transition: all var(--transition);
    box-shadow: var(--shadow-sm);
}
.btn-upload:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-upload-borrador {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
}
.btn-upload-publicada {
    background: linear-gradient(135deg, var(--success), var(--accent));
    color: #fff;
}

/* === Filters === */
.filters-bar {
    display: flex; gap: 12px; flex-wrap: wrap;
    margin-bottom: 20px; align-items: flex-end;
}
.filter-group { display: flex; flex-direction: column; gap: 4px; }
.filter-group label { font-size: .75rem; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .5px; }
.filter-group select, .filter-group input {
    padding: 8px 14px; border-radius: var(--radius-sm);
    border: 1px solid var(--border); background: var(--bg-input);
    color: var(--text-primary); font-size: .85rem; font-family: 'Inter', sans-serif;
    min-width: 160px;
}
.btn-filter {
    padding: 8px 20px; border-radius: var(--radius-sm);
    border: none; background: var(--primary); color: #fff;
    font-weight: 600; font-size: .85rem; cursor: pointer;
    transition: all var(--transition); align-self: flex-end;
}
.btn-filter:hover { background: var(--primary-dark); }

/* === DataTables Override === */
.dataTables_wrapper { font-size: .85rem; }
.dataTables_wrapper .dataTables_filter input {
    border-radius: var(--radius-sm); border: 1px solid var(--border);
    padding: 6px 12px; background: var(--bg-input); color: var(--text-primary);
}
.dataTables_wrapper .dataTables_length select {
    border-radius: var(--radius-sm); border: 1px solid var(--border);
    padding: 4px 8px; background: var(--bg-input); color: var(--text-primary);
}
table.dataTable { border-collapse: collapse !important; }
table.dataTable thead th {
    background: var(--bg-input); font-weight: 700; font-size: .78rem;
    text-transform: uppercase; letter-spacing: .5px; color: var(--text-secondary);
    border-bottom: 2px solid var(--border) !important; padding: 12px 16px !important;
}
table.dataTable tbody td {
    padding: 10px 16px !important; vertical-align: middle;
    border-bottom: 1px solid var(--border) !important; color: var(--text-primary);
}
table.dataTable tbody tr:hover { background: rgba(99,102,241,.04) !important; }

/* Estado Badges */
.badge-estado {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 5px 12px; border-radius: 20px;
    font-size: .75rem; font-weight: 600;
}
.badge-pendiente { background: rgba(245,158,11,.12); color: #d97706; }
.badge-realizado { background: rgba(16,185,129,.12); color: #059669; }
.badge-realizado-otro { background: rgba(249,115,22,.12); color: #ea580c; }
.badge-sin-asignacion { background: rgba(239,68,68,.12); color: #dc2626; }

/* === Employee Cards === */
.employee-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px; margin-bottom: 28px;
}
.employee-card {
    background: var(--bg-card); border-radius: var(--radius-lg);
    padding: 24px; box-shadow: var(--shadow-md);
    border: 1px solid var(--border); border-top: 4px solid;
    transition: all var(--transition);
}
.employee-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.employee-card-header {
    display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px;
}
.employee-name { font-size: 1.15rem; font-weight: 700; color: var(--text-primary); }
.employee-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.employee-stat {
    background: var(--bg-input); padding: 12px; border-radius: var(--radius-sm);
    text-align: center;
}
.employee-stat-value { font-size: 1.3rem; font-weight: 800; color: var(--text-primary); }
.employee-stat-label { font-size: .7rem; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .5px; margin-top: 2px; }
.progress-bar-custom {
    height: 8px; background: var(--border); border-radius: 4px;
    overflow: hidden; margin-top: 16px;
}
.progress-bar-fill {
    height: 100%; border-radius: 4px;
    background: linear-gradient(90deg, var(--success), var(--accent));
    transition: width .8s ease;
}

/* === Calendar === */
.calendar-grid {
    display: grid; grid-template-columns: repeat(7, 1fr);
    gap: 4px; margin-top: 12px;
}
.calendar-header-cell {
    padding: 10px 4px; text-align: center;
    font-size: .75rem; font-weight: 700; color: var(--text-secondary);
    text-transform: uppercase;
}
.calendar-cell {
    min-height: 90px; padding: 8px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-sm); font-size: .8rem;
    transition: all var(--transition);
}
.calendar-cell:hover { box-shadow: var(--shadow-sm); border-color: var(--primary-light); }
.calendar-cell.empty { background: transparent; border: none; }
.calendar-day-number { font-weight: 700; color: var(--text-primary); margin-bottom: 4px; }
.calendar-badge {
    display: inline-block; padding: 2px 6px; border-radius: 4px;
    font-size: .65rem; font-weight: 600; margin: 1px 0;
}
.cal-green { background: rgba(16,185,129,.15); color: #059669; }
.cal-yellow { background: rgba(245,158,11,.15); color: #d97706; }
.cal-red { background: rgba(239,68,68,.15); color: #dc2626; }
.calendar-employee {
    font-size: .65rem; font-weight: 600; margin-bottom: 4px;
    padding: 2px 6px; border-radius: 4px; display: inline-block;
    color: #fff;
}

/* === Buttons === */
.btn-primary-custom {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff; border: none; padding: 10px 22px;
    border-radius: var(--radius-sm); font-weight: 600; font-size: .85rem;
    cursor: pointer; transition: all var(--transition);
}
.btn-primary-custom:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(99,102,241,.4); color:#fff; }
.btn-danger-custom {
    background: linear-gradient(135deg, var(--danger), #f87171);
    color: #fff; border: none; padding: 8px 18px;
    border-radius: var(--radius-sm); font-weight: 600; font-size: .8rem;
    cursor: pointer; transition: all var(--transition);
}
.btn-danger-custom:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(239,68,68,.4); }

/* === Day Selector === */
.day-selector { display: flex; flex-wrap: wrap; gap: 6px; }
.day-btn {
    width: 38px; height: 38px; border-radius: var(--radius-sm);
    border: 2px solid var(--border); background: var(--bg-input);
    font-size: .8rem; font-weight: 600; color: var(--text-secondary);
    cursor: pointer; transition: all var(--transition);
    display: flex; align-items: center; justify-content: center;
}
.day-btn:hover { border-color: var(--primary); color: var(--primary); }
.day-btn.selected {
    background: var(--primary); color: #fff;
    border-color: var(--primary); box-shadow: 0 2px 8px rgba(99,102,241,.3);
}

/* === Modal Overrides === */
.modal-content {
    border: none; border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl); background: var(--bg-card);
}
.modal-header {
    border-bottom: 1px solid var(--border); padding: 18px 24px;
    background: var(--bg-input); border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.modal-title { font-weight: 700; font-size: 1.05rem; color: var(--text-primary); }
.modal-body { padding: 24px; }
.modal-footer { border-top: 1px solid var(--border); padding: 14px 24px; }
.form-label { font-size: .8rem; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: .3px; }
.form-control, .form-select {
    border-radius: var(--radius-sm); border: 1px solid var(--border);
    background: var(--bg-input); color: var(--text-primary); padding: 10px 14px;
    font-family: 'Inter', sans-serif;
}
.form-control:focus, .form-select:focus {
    border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,.15);
}

/* === Animations === */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate-in { animation: fadeInUp .5s ease forwards; }
.animate-delay-1 { animation-delay: .1s; }
.animate-delay-2 { animation-delay: .2s; }
.animate-delay-3 { animation-delay: .3s; }

/* === Responsive === */
@media (max-width: 992px) {
    .charts-grid { grid-template-columns: 1fr; }
    .kpi-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: var(--sidebar-width) !important;
    }
    .sidebar.mobile-open { transform: translateX(0); }
    .main-content { margin-left: 0 !important; }
    .mobile-toggle { display: block; }
    .content-wrapper { padding: 16px; }
    .top-bar { padding: 0 16px; }
    .kpi-grid { grid-template-columns: 1fr; }
    .employee-grid { grid-template-columns: 1fr; }
    .upload-actions { flex-direction: column; }
    .filters-bar { flex-direction: column; }
    .filter-group select, .filter-group input { min-width: 100%; }
}

/* === Scrollbar === */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--text-muted); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* === Misc === */
.section-title {
    font-size: 1.1rem; font-weight: 700; color: var(--text-primary);
    margin-bottom: 20px; display: flex; align-items: center; gap: 10px;
}
.section-title i { color: var(--primary); }
.calendar-nav {
    display: flex; align-items: center; gap: 16px; margin-bottom: 16px;
}
.calendar-nav button {
    background: var(--bg-input); border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 8px 16px;
    cursor: pointer; color: var(--text-primary); font-weight: 600;
    transition: all var(--transition);
}
.calendar-nav button:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.calendar-nav span { font-size: 1.1rem; font-weight: 700; color: var(--text-primary); min-width: 200px; text-align: center; }
.text-truncate-custom { max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Export buttons */
.export-btns { display: flex; gap: 8px; flex-wrap: wrap; }
.btn-export {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 16px; border-radius: var(--radius-sm);
    border: 1px solid var(--border); background: var(--bg-card);
    color: var(--text-primary); font-size: .8rem; font-weight: 600;
    cursor: pointer; transition: all var(--transition);
}
.btn-export:hover { border-color: var(--primary); color: var(--primary); }
.btn-export-pdf { color: var(--danger); }
.btn-export-excel { color: var(--success); }

/* === Column Guide === */
.column-guide {
    margin-bottom: 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--bg-card);
}
.column-guide-header {
    padding: 12px 16px;
    background: linear-gradient(135deg, rgba(99,102,241,.08), rgba(139,92,246,.06));
    border-bottom: 1px solid var(--border);
    font-size: .85rem;
    color: var(--primary);
}
.column-guide-header i { margin-right: 6px; }
.column-guide-table { padding: 0; }
.column-guide-table table { margin: 0; }
.column-guide-table th {
    font-size: .72rem !important;
    text-transform: uppercase;
    letter-spacing: .5px;
    color: var(--text-secondary) !important;
    font-weight: 700 !important;
}
.column-guide-table td { font-size: .82rem; vertical-align: middle !important; }
.column-guide-table code {
    background: rgba(99,102,241,.08);
    color: var(--primary);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: .78rem;
}

/* === User Dropdown Menu Overrides === */
.dropdown-toggle::after {
    vertical-align: middle;
    margin-left: 8px;
    border-top: 0.3em solid;
    border-right: 0.3em solid transparent;
    border-bottom: 0;
    border-left: 0.3em solid transparent;
    transition: transform var(--transition);
}
.dropdown-toggle[aria-expanded="true"]::after {
    transform: rotate(180deg);
}
.dropdown-menu {
    border: 1px solid var(--border) !important;
    background-color: var(--bg-card) !important;
    box-shadow: var(--shadow-md) !important;
    animation: dropdownFadeIn 0.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.dropdown-item {
    color: var(--text-primary) !important;
    transition: all var(--transition);
    font-weight: 500;
}
.dropdown-item:hover {
    background-color: rgba(99,102,241,0.08) !important;
    color: var(--primary) !important;
}
.dropdown-item.text-danger:hover {
    background-color: rgba(239, 68, 68, 0.08) !important;
    color: var(--danger) !important;
}
@keyframes dropdownFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Premium Modal & Input Group Styles */
.modal-content {
    background-color: var(--bg-card) !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-xl) !important;
}
.modal-header {
    border-bottom: 1px solid var(--border) !important;
}
.modal-footer {
    border-top: 1px solid var(--border) !important;
}
.modal-backdrop {
    backdrop-filter: blur(5px);
    background-color: #0f172a !important;
}
.modal.fade .modal-dialog {
    transform: scale(0.95);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.modal.show .modal-dialog {
    transform: scale(1);
}

.input-group .form-control:focus {
    box-shadow: 0 0 0 3px rgba(99,102,241,0.15) !important;
    border-color: var(--primary) !important;
}
.input-group button:hover {
    background-color: rgba(99,102,241,0.08) !important;
    color: var(--primary) !important;
}