/* ===== Tema oscuro (cómodo para la vista) ===== */
[data-theme="dark"] {
    --primary: #8b93f0;
    --primary-dark: #6b75e8;
    --primary-light: #a5acf5;
    --primary-soft: #2a3050;
    --accent: #5eead4;
    --success: #4ade80;
    --success-soft: #1a3328;
    --danger: #f87171;
    --danger-soft: #3d2228;
    --warning: #fbbf24;
    --surface: #1e2235;
    --surface-2: #252b42;
    --border: #3a415c;
    --text: #e8eaf2;
    --text-muted: #a0a8be;
    --nav-bg: #121525;
    --nav-bg-alt: #252b42;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.45);
    --page-bg-start: #121525;
    --page-bg-end: #1a1f33;
    --input-focus-bg: #2d3450;
    --input-disabled-bg: #2a3045;
    --table-row-stripe: #252b42;
    --table-row-hover: #2f3654;
}

[data-theme="dark"] body {
    background: linear-gradient(180deg, var(--page-bg-start) 0%, var(--page-bg-end) 100%);
}

[data-theme="dark"] .page input:focus,
[data-theme="dark"] .page select:focus,
[data-theme="dark"] .page textarea:focus,
[data-theme="dark"] .form-input:focus {
    background: var(--input-focus-bg);
    box-shadow: 0 0 0 3px rgba(139, 147, 240, 0.2);
}

[data-theme="dark"] .page input:disabled,
[data-theme="dark"] .page select:disabled,
[data-theme="dark"] .page input[disabled],
[data-theme="dark"] .page select[disabled] {
    background: var(--input-disabled-bg);
}

[data-theme="dark"] .alert.success {
    background: var(--success-soft);
    border-color: #2d5a40;
    color: #86efac;
}

[data-theme="dark"] .alert.error {
    background: var(--danger-soft);
    border-color: #6b3038;
    color: #fca5a5;
}

[data-theme="dark"] .alert.warning {
    background: #3d3420;
    border-color: #6b5a2a;
    color: #fcd34d;
}

[data-theme="dark"] .acciones-container a:hover {
    background: var(--surface);
}

[data-theme="dark"] .site-footer {
    background: rgba(18, 21, 37, 0.92);
    border-top-color: var(--border);
}

[data-theme="dark"] .btn-secondary {
    background: var(--surface-2);
    color: var(--text);
    border-color: var(--border);
}

[data-theme="dark"] .btn-secondary:hover {
    background: var(--surface);
    border-color: var(--primary);
}

[data-theme="dark"] .tabla-container table tbody tr:nth-child(odd),
[data-theme="dark"] .data-table tbody tr:nth-child(odd),
[data-theme="dark"] .page > .container > div:has(> table) table tbody tr:nth-child(odd) {
    background: var(--surface);
}

[data-theme="dark"] .tabla-container table tbody tr:nth-child(even),
[data-theme="dark"] .data-table tbody tr:nth-child(even),
[data-theme="dark"] .page > .container > div:has(> table) table tbody tr:nth-child(even) {
    background: var(--table-row-stripe);
}

[data-theme="dark"] .tabla-container table tbody tr:hover,
[data-theme="dark"] .data-table tbody tr:hover,
[data-theme="dark"] .page > .container > div:has(> table) table tbody tr:hover {
    background: var(--table-row-hover);
}

[data-theme="dark"] .data-table tbody tr.row-enfasis,
[data-theme="dark"] .tabla-container table tbody tr.row-enfasis,
[data-theme="dark"] .page > .container > div:has(> table) table tbody tr.row-enfasis {
    background: #3d3420 !important;
}

[data-theme="dark"] .data-table tbody tr.row-enfasis:nth-child(even),
[data-theme="dark"] .tabla-container table tbody tr.row-enfasis:nth-child(even),
[data-theme="dark"] .page > .container > div:has(> table) table tbody tr.row-enfasis:nth-child(even) {
    background: #4a3d24 !important;
}

[data-theme="dark"] .data-table tbody tr.row-enfasis:hover,
[data-theme="dark"] .tabla-container table tbody tr.row-enfasis:hover,
[data-theme="dark"] .page > .container > div:has(> table) table tbody tr.row-enfasis:hover {
    background: #5c4a2a !important;
}

[data-theme="dark"] .data-table td .link-button.btn-enfasis,
[data-theme="dark"] .tabla-container table td .link-button.btn-enfasis {
    background: #4a3d24;
    color: #f0c36a;
    border-color: #c4922e;
}

[data-theme="dark"] .assignment-card .link-button.btn-enfasis {
    background: var(--surface);
    color: #f0c36a;
    border-color: #c4922e;
}

[data-theme="dark"] .assignment-card .link-button.btn-enfasis:hover {
    background: #4a3d24;
}

[data-theme="dark"] .asignaciones > .assignment-card--enfasis {
    border-color: #c4922e;
}

[data-theme="dark"] .data-table tbody tr.row-retirado,
[data-theme="dark"] .cronograma-plan-table tbody tr.row-retirado {
    background: #3d2228;
}

[data-theme="dark"] .data-table tbody tr.row-retirado:nth-child(even),
[data-theme="dark"] .cronograma-plan-table tbody tr.row-retirado:nth-child(even) {
    background: #4a2830;
}

[data-theme="dark"] .data-table tbody tr.row-retirado:hover,
[data-theme="dark"] .cronograma-plan-table tbody tr.row-retirado:hover {
    background: #5a303a;
}

[data-theme="dark"] .badge--retirado {
    background: #5a303a;
    color: #fca5a5;
}

[data-theme="dark"] .cronograma-plan-table tbody tr.row-retirado .cell-actions--sticky-left,
[data-theme="dark"] .cronograma-plan-table tbody tr.row-retirado:nth-child(even) .cell-actions--sticky-left {
    background: #3d2228;
}

[data-theme="dark"] .cronograma-plan-table tbody tr.row-retirado:hover .cell-actions--sticky-left {
    background: #5a303a;
}

[data-theme="dark"] .data-table .col-id,
[data-theme="dark"] .tabla-container table .col-id {
    color: var(--primary-light);
}

[data-theme="dark"] .data-table td,
[data-theme="dark"] .tabla-container table td,
[data-theme="dark"] .page > .container > div:has(> table) table td {
    color: var(--text);
    border-bottom-color: var(--border);
}

[data-theme="dark"] .correos-asignacion-item__meta--schedule {
    color: var(--primary-light);
}

[data-theme="dark"] .correos-asignacion-schedule > summary {
    color: var(--primary-light);
}

[data-theme="dark"] .correos-asignacion-schedule-field input {
    background: var(--surface-2);
}

[data-theme="dark"] .ct-swal-popup {
    background: var(--surface) !important;
    color: var(--text) !important;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45) !important;
}

[data-theme="dark"] .ct-swal-title {
    color: var(--text) !important;
}

[data-theme="dark"] .ct-swal-text {
    color: var(--text-muted) !important;
}

[data-theme="dark"] .ct-swal-btn-cancel {
    background: var(--surface-2) !important;
    color: var(--text) !important;
}

[data-theme="dark"] .audit-detail__panel {
    background: var(--surface-2);
    border-color: var(--border);
}

[data-theme="dark"] .audit-detail__panel-title {
    color: var(--primary-light, #7BC9F5);
}

[data-theme="dark"] .plan-observacion-item--nueva {
    border-color: rgba(139, 147, 240, 0.35);
}

[data-theme="dark"] .plan-observacion-num-input:focus,
[data-theme="dark"] .plan-observacion-textarea:focus {
    box-shadow: 0 0 0 3px rgba(139, 147, 240, 0.2);
}

[data-theme="dark"] .plan-observacion-btn-delete {
    color: var(--danger);
    border-color: rgba(248, 113, 113, 0.35);
}

[data-theme="dark"] .login-brand {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

[data-theme="dark"] .login-card {
    background: var(--surface);
    border-color: var(--border);
    box-shadow: var(--shadow);
}

[data-theme="dark"] .login-card input {
    background: var(--surface-2);
    color: var(--text);
    border-color: var(--border);
}

[data-theme="dark"] .alert-login {
    background: var(--danger-soft);
    color: #fca5a5;
    border-color: #6b3038;
}

/* ===== Selector de tema ===== */
.theme-settings {
    margin-bottom: 1.25rem;
}

.theme-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-top: 0.75rem;
}

.theme-option {
    cursor: pointer;
}

.theme-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.theme-option__card {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    height: 100%;
    padding: 1rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface-2);
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.theme-option:hover .theme-option__card {
    border-color: var(--primary);
    transform: translateY(-1px);
}

.theme-option.is-selected .theme-option__card,
.theme-option input:checked + .theme-option__card {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(80, 91, 218, 0.18);
    background: var(--surface);
}

.theme-option__preview {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    padding: 0.55rem;
    border-radius: 10px;
    border: 1px solid var(--border);
    min-height: 5.5rem;
}

.theme-option__preview--default {
    background: linear-gradient(180deg, #f5f6fa 0%, #eef2ff 100%);
}

.theme-option__preview--dark {
    background: linear-gradient(180deg, #121525 0%, #1a1f33 100%);
    border-color: #3a415c;
}

.theme-option__preview-bar {
    display: block;
    height: 0.85rem;
    border-radius: 6px;
    background: linear-gradient(135deg, #2A2C6E 0%, #505BDA 100%);
}

.theme-option__preview--dark .theme-option__preview-bar {
    background: linear-gradient(135deg, #121525 0%, #252b42 100%);
}

.theme-option__preview-body {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    padding: 0.35rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.72);
}

.theme-option__preview--dark .theme-option__preview-body {
    background: rgba(30, 34, 53, 0.95);
}

.theme-option__preview-line {
    display: block;
    height: 0.45rem;
    border-radius: 999px;
    background: #dde1ea;
}

.theme-option__preview--dark .theme-option__preview-line {
    background: #3a415c;
}

.theme-option__preview-line--short {
    width: 62%;
}

.theme-option__label {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
}

.theme-option__hint {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* operador_visualizador: ocultar UI de escritura (el servidor también bloquea POST) */
body.role-readonly .role-mutable,
body.role-readonly form.post-action-form,
body.role-readonly form[method="POST"]:not(.nav__logout-form),
body.role-readonly form[method="post"]:not(.nav__logout-form),
body.role-readonly a[href*="/modificar"],
body.role-readonly a[href*="/modify"],
body.role-readonly a[href*="/importar-grupos"],
body.role-readonly a[href*="/agregarEF"],
body.role-readonly a[href*="/asignar"],
body.role-readonly button[data-cronograma-form-toggle],
body.role-readonly button[data-ef-open],
body.role-readonly .btn-delete,
body.role-readonly .plan-verificacion-mes-chip__delete,
body.role-readonly .empresas-col-acciones,
body.role-readonly .cell-actions .action-group:empty {
    display: none !important;
}

body.role-readonly input.empresas-nombre-input {
    pointer-events: none;
    border: none;
    background: transparent;
    box-shadow: none;
    padding-left: 0;
}

body.role-readonly .role-readonly-hint {
    display: block;
}

.role-readonly-hint {
    display: none;
    margin: 0.75rem 0 1rem;
    color: var(--text-muted);
    font-size: 0.92rem;
}