.yachai-brand {
    font-weight: 700;
    letter-spacing: 0.03em;
    color: #ef4444;
}

.yachai-admin-header {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    margin-bottom: 0.5rem;
}

.yachai-admin-logo {
    height: 3.25rem;
    width: auto;
    max-width: 14rem;
    display: block;
}

.yachai-admin-icon {
    width: 3rem;
    height: 3rem;
    object-fit: contain;
    display: block;
    filter: drop-shadow(0 2px 4px rgba(239, 68, 68, 0.25));
}

.yachai-modal-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.125rem;
}

.yachai-modal-flame {
    height: 1.375rem;
    width: auto;
    aspect-ratio: 110 / 178;
    flex-shrink: 0;
    display: block;
    margin: 0;
}

.yachai-modal-brand-text {
    font-size: 1.25rem;
    letter-spacing: 0;
    line-height: 1;
}

/* Modal de actividad: tamaño completo como DataCurso (75vw × casi viewport). */
.yachai-activity-modal .modal-dialog {
    max-width: 75vw;
    width: 75vw;
    margin: 1.75rem auto;
}

.yachai-activity-modal .modal-content {
    height: calc(100vh - 3.5rem);
    display: flex;
    flex-direction: column;
}

.yachai-activity-modal .modal-body {
    overflow: hidden;
    flex: 1 1 auto;
    min-height: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
}

.yachai-activity-modal .yachai-modal-body {
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.yachai-modal-header {
    flex-shrink: 0;
    padding: 0.65rem 1rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    background: #fff;
}

.yachai-modal-scroll {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    padding: 1rem;
}

.yachai-modal-footer {
    flex-shrink: 0;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 0.75rem 1rem;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    background: #fff;
}

.yachai-send-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.5rem 1.35rem;
    border: none;
    border-radius: 0.375rem;
    background: linear-gradient(135deg, #ef4444 0%, #fb923c 100%);
    color: #fff;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.28);
    transition: transform 0.12s ease, box-shadow 0.12s ease, filter 0.12s ease;
}

.yachai-send-btn:hover:not(:disabled),
.yachai-send-btn:focus-visible:not(:disabled) {
    color: #fff;
    filter: brightness(1.05);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.35);
}

.yachai-send-btn:active:not(:disabled) {
    transform: translateY(1px);
}

.yachai-send-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    box-shadow: none;
}

.yachai-activity-modal .yachai-chat-log {
    min-height: 8rem;
    overflow: visible;
}

.yachai-activity-modal .yachai-progress {
    flex-shrink: 0;
}

.yachai-activity-modal .yachai-form {
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .yachai-activity-modal .modal-dialog {
        max-width: calc(100vw - 1rem);
        width: calc(100vw - 1rem);
        margin: 0.5rem auto;
    }

    .yachai-activity-modal .modal-content {
        height: calc(100vh - 1rem);
    }
}

.yachai-charts-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
    margin: 1rem 0 1.5rem;
    align-items: start;
}

.yachai-chart-box {
    background: #fff;
    border: 1px solid #dee2e6;
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
}

.yachai-chart-canvas-wrap {
    position: relative;
    height: 16.5rem;
    max-height: 16.5rem;
}

.yachai-chart-wide .yachai-chart-canvas-wrap {
    height: 18.75rem;
    max-height: 18.75rem;
}

.yachai-chart-canvas-wrap canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
}

.yachai-chart-box {
    position: relative;
}

.yachai-chart-download,
.yachai-export-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    padding: 0;
    border: none;
    background: transparent;
    color: #adb5bd;
    font-size: 1rem;
    cursor: pointer;
    border-radius: 0.25rem;
    transition: color 0.15s, background 0.15s;
    text-decoration: none;
}

.yachai-chart-download {
    position: absolute;
    top: 0.4rem;
    right: 0.4rem;
    z-index: 10;
}

.yachai-chart-download:hover,
.yachai-export-btn:hover {
    color: #495057;
    background: rgba(0, 0, 0, 0.06);
}

.yachai-table-export {
    display: flex;
    gap: 0.15rem;
    align-items: center;
}

.yachai-chart-wide {
    grid-column: 1 / -1;
}

@media (max-width: 992px) {
    .yachai-charts-grid {
        grid-template-columns: 1fr;
    }
}

.yachai-admin-table td:first-child {
    font-weight: 600;
    width: 14rem;
}

.yachai-usage-period {
    font-size: 0.95rem;
}

.yachai-table-heading {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-start;
    gap: 0.25rem 0.4rem;
    margin: 1.25rem 0 0.5rem;
}

.yachai-table-heading h4 {
    margin: 0;
}

.yachai-table-heading-label {
    font-weight: 600;
}

.yachai-table-export {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 0.375rem;
}

.yachai-export-btn {
    min-width: 4.5rem;
}

.yachai-user-import-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.yachai-user-import-form {
    max-width: 42rem;
}

.yachai-user-import-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.yachai-usage-paging-info {
    font-size: 0.9rem;
    color: #6b7280;
    margin: 0.35rem 0 0.25rem;
}

.yachai-usage-paging {
    margin: 0.5rem 0 1.25rem;
}

.yachai-usage-totals td:last-child,
.yachai-usage-recent td:last-child,
.yachai-usage-recent td:nth-last-child(2),
.yachai-admin-dashboard .generaltable td:nth-last-child(-n+2) {
    text-align: right;
    white-space: nowrap;
}

.yachai-usage-recent td:nth-child(4) {
    max-width: 22rem;
    word-break: break-word;
}

.yachai-section-controls {
    display: inline-flex;
    flex-wrap: nowrap;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
}

.yachai-section-controls .section-modchooser,
.yachai-section-controls .yachai-section-btn {
    margin: 0;
}

.yachai-section-controls .yachai-section-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.yachai-section-controls .yachai-section-icon-ai {
    margin-left: 0.125rem;
}

.yachai-section-controls .yachai-section-btn-inner {
    gap: 0;
}

.yachai-section-controls .yachai-section-btn-inner .yachai-section-icon-add {
    margin-right: 0.5rem;
}

.yachai-section-controls .yachai-section-btn-inner .activity-add-text {
    white-space: nowrap;
    padding-right: 0;
    margin-right: 0;
}

.yachai-section-controls .yachai-section-btn-inner .yachai-section-icon-ai {
    margin-left: 0.125rem;
}

.yachai-section-controls .yachai-section-btn > .yachai-section-icon-add {
    margin-right: 0.35rem;
}

.yachai-section-controls .yachai-sparkles-icon,
.yachai-section-controls .btn.add-content .yachai-sparkles-icon {
    width: 14px;
    height: 14px;
    display: block;
}

.yachai-source-select-trigger {
    min-height: calc(1.5em + 0.5rem + 2px);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem;
    cursor: pointer;
    background-color: #fff;
}

.yachai-source-select-trigger::after {
    content: "";
    position: absolute;
    top: 50%;
    right: 0.75rem;
    width: 0.45rem;
    height: 0.45rem;
    margin-top: -0.2rem;
    border-right: 2px solid #6c757d;
    border-bottom: 2px solid #6c757d;
    transform: rotate(45deg);
    pointer-events: none;
}

.yachai-source-select {
    position: relative;
}

.yachai-source-select-placeholder {
    padding-right: 1.25rem;
}

.yachai-source-select-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    padding-right: 1.25rem;
}

.yachai-source-select-menu {
    position: absolute;
    top: calc(100% + 0.25rem);
    left: 0;
    right: 0;
    z-index: 1060;
    background: #fff;
    max-height: 18rem;
    display: flex;
    flex-direction: column;
}

.yachai-source-select-toolbar {
    background: #f8f9fa;
}

.yachai-sources-list {
    background: #fff;
    max-height: 11rem;
    overflow-y: auto;
}

.yachai-sources-section + .yachai-sources-section {
    border-top: 1px solid #dee2e6;
    padding-top: 0.5rem;
    margin-top: 0.25rem;
}

.yachai-source-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.25rem 0.45rem 0.25rem 0.55rem;
}

.yachai-source-chip-label {
    max-width: 9rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.yachai-source-chip-meta {
    opacity: 0.85;
    font-weight: 400;
}

.yachai-source-chip-remove {
    width: 0.5rem;
    height: 0.5rem;
    margin-left: 0.1rem;
    padding: 0;
    opacity: 0.85;
}

.yachai-source-chip-remove:hover {
    opacity: 1;
}

.yachai-attachments-panel {
    padding-left: 1.65rem;
    border-left: 2px solid #e9ecef;
    margin-left: 0.35rem;
}

.yachai-attachments-heading-icon {
    color: #6c757d;
    line-height: 1;
}

.yachai-attachments-badge {
    font-size: 0.75rem;
    font-weight: 600;
    color: #495057;
    border: 1px solid #dee2e6;
}

.yachai-attachments-badge .icon {
    opacity: 0.75;
}

.yachai-attachments-formats .icon {
    font-size: 1rem;
    margin-right: 0.15rem;
}

.yachai-attachments-formats-sep {
    margin: 0 0.35rem;
    opacity: 0.5;
}

.yachai-file-pdf {
    color: #dc3545;
}

.yachai-file-word {
    color: #0d6efd;
}

.yachai-file-text {
    color: #6c757d;
}

.yachai-file-md {
    color: #0dcaf0;
}

.yachai-activity-modal .yachai-form {
    flex-shrink: 0;
}

.yachai-options-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    padding: 0.45rem 0.55rem;
    border: 1px solid #e9ecef;
    border-radius: 0.5rem;
    background: #f8f9fa;
}

.yachai-option-chip {
    position: relative;
    margin: 0;
    cursor: pointer;
}

.yachai-option-input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.yachai-option-chip-face {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.35rem;
    height: 2.35rem;
    border-radius: 0.5rem;
    border: 1px solid #dee2e6;
    background: #fff;
    color: #6c757d;
    font-size: 1rem;
    transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.yachai-option-chip:hover .yachai-option-chip-face {
    border-color: #ced4da;
    color: #495057;
}

.yachai-option-input:focus-visible + .yachai-option-chip-face {
    outline: 2px solid #86b7fe;
    outline-offset: 2px;
}

.yachai-option-input:checked + .yachai-option-chip-face {
    border-color: #ef4444;
    background: #fef2f2;
    color: #ef4444;
    box-shadow: 0 0 0 1px rgba(239, 68, 68, 0.15);
}

.yachai-option-chip-badge {
    position: absolute;
    top: -0.3rem;
    right: -0.3rem;
    min-width: 1rem;
    height: 1rem;
    padding: 0 0.25rem;
    border-radius: 999px;
    background: #ef4444;
    color: #fff;
    font-size: 0.625rem;
    font-weight: 700;
    line-height: 1rem;
    text-align: center;
}

.yachai-option-switch-wrap {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.2rem 0.35rem;
    border-radius: 0.5rem;
}

.yachai-option-images {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
    flex-shrink: 0;
}

.yachai-option-switch-row {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.yachai-option-images-hint {
    font-size: 0.6875rem;
    color: #6c757d;
    line-height: 1.1;
    text-align: center;
    white-space: nowrap;
}

.yachai-option-images-hint--on {
    color: #ef4444;
    font-weight: 600;
}

.yachai-option-switch-icon {
    color: #6c757d;
    font-size: 1rem;
}

.yachai-switch {
    position: relative;
    display: inline-block;
    width: 2.5rem;
    height: 1.35rem;
    flex-shrink: 0;
    overflow: hidden;
}

.yachai-switch-input {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    z-index: 1;
    cursor: pointer;
}

.yachai-switch-slider {
    position: absolute;
    inset: 0;
    display: block;
    margin: 0;
    cursor: pointer;
    border-radius: 999px;
    background: #ced4da;
    transition: background-color 0.2s ease;
    pointer-events: none;
}

.yachai-switch-slider::before {
    content: "";
    position: absolute;
    left: 0.15rem;
    top: 0.15rem;
    width: 1.05rem;
    height: 1.05rem;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease;
}

.yachai-switch-input:checked + .yachai-switch-slider {
    background: linear-gradient(135deg, #ef4444 0%, #fb923c 100%);
}

.yachai-switch-input:checked + .yachai-switch-slider::before {
    transform: translateX(1.15rem);
}

.yachai-switch-input:focus-visible + .yachai-switch-slider {
    outline: 2px solid #86b7fe;
    outline-offset: 2px;
}

.yachai-switch-input:focus-visible {
    outline: none;
}

.yachai-option-images:has(.yachai-switch-input:checked) .yachai-option-switch-icon {
    color: #ef4444;
}

.yachai-attachments-dropzone {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem;
    min-height: 3.5rem;
    border: 1.5px dashed #ced4da;
    border-radius: 0.5rem;
    background: #f8f9fa;
    color: #6c757d;
    cursor: pointer;
    transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}

.yachai-attachments-dropzone:hover,
.yachai-attachments-dropzone:focus-visible {
    border-color: #86b7fe;
    background: #eef4ff;
    color: #0d6efd;
    outline: none;
}

.yachai-attachments-dropzone--active {
    border-color: #0d6efd;
    background: #e7f1ff;
    color: #0d6efd;
}

.yachai-attachments-dropzone-icon {
    opacity: 0.85;
}

.yachai-attachments-list {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-top: 0.5rem;
}

.yachai-attachment-item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.45rem 0.55rem;
    border: 1px solid #dee2e6;
    border-radius: 0.5rem;
    background: #fff;
}

.yachai-attachment-item-icon {
    flex: 0 0 auto;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.375rem;
    background: #f8f9fa;
    font-size: 1.15rem;
}

.yachai-attachment-item-body {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.05rem;
}

.yachai-attachment-item-name {
    font-size: 0.8125rem;
    font-weight: 500;
    color: #212529;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.yachai-attachment-item-meta {
    font-size: 0.6875rem;
    color: #6c757d;
}

.yachai-attachment-item-remove {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    padding: 0;
    border: none;
    border-radius: 0.375rem;
    background: transparent;
    color: #adb5bd;
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.yachai-attachment-item-remove:hover,
.yachai-attachment-item-remove:focus-visible {
    background: #fee2e2;
    color: #dc3545;
    outline: none;
}

.yachai-attachments-add-more {
    color: #0d6efd;
    text-decoration: none;
    font-size: 0.8125rem;
}

.yachai-attachments-add-more:hover,
.yachai-attachments-add-more:focus-visible {
    color: #0a58ca;
    text-decoration: none;
}

.yachai-sources-search {
    min-width: 8rem;
    flex: 1 1 8rem;
}

.yachai-source-item {
    margin-bottom: 0.35rem;
}

.yachai-source-item:last-child {
    margin-bottom: 0;
}

.yachai-prompt-editor {
    position: relative;
}

.yachai-prompt-backdrop {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: 0;
}

.yachai-prompt-highlight {
    min-height: calc(1.5em + 0.75rem + 2px);
    height: 100%;
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow: hidden;
    color: #212529;
    font-weight: 400;
    background-color: #fff;
    border-color: transparent;
    box-shadow: none;
}

.yachai-prompt-plain {
    font-weight: 400;
}

.yachai-prompt-editor textarea.yachai-prompt-input {
    position: relative;
    z-index: 1;
    background: transparent;
    color: transparent;
    caret-color: #212529;
}

.yachai-prompt-editor textarea.yachai-prompt-input::placeholder {
    color: #6c757d;
}

.yachai-mention-tag {
    color: #0d6efd;
    font-weight: 600;
    background: rgba(13, 110, 253, 0.14);
    border-radius: 0.2rem;
}

.yachai-mention-menu {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1050;
    width: max-content;
    min-width: 11rem;
    max-width: min(22rem, calc(100% - 1rem));
    max-height: 10rem;
    overflow-x: hidden;
    overflow-y: auto;
    background: #fff;
    border: 1px solid #dee2e6;
    border-radius: 0.375rem;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.12);
}

.yachai-mention-mirror {
    position: absolute;
    visibility: hidden;
    white-space: pre-wrap;
    word-wrap: break-word;
    overflow: hidden;
    pointer-events: none;
    z-index: -1;
}

.yachai-mention-caret-marker {
    display: inline;
}

.yachai-mention-item {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    min-width: 0;
    max-width: 100%;
    padding: 0.35rem 0.65rem;
    border: 0;
    background: transparent;
    text-align: left;
    cursor: pointer;
    white-space: nowrap;
}

.yachai-mention-item:hover,
.yachai-mention-item:focus {
    background: #f8f9fa;
    outline: none;
}

.yachai-mention-name {
    flex: 1 1 auto;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 600;
    color: #212529;
}

.yachai-mention-meta {
    flex: 0 0 auto;
    font-size: 0.75rem;
    color: #6c757d;
}

/* Legacy FAB (ya no se usa). */
.yachai-fab {
    display: none !important;
}

.yachai-chat-log {
    max-height: 160px;
    overflow-y: auto;
    padding: 0.25rem 0;
}

.yachai-chat-bubble {
    border-radius: 12px;
    padding: 0.55rem 0.75rem;
    max-width: 92%;
    line-height: 1.4;
}

.yachai-chat-bubble-ai {
    background: #f1f3f5;
    color: #495057;
}

.yachai-chat-bubble-welcome {
    background: #f0ebff;
    color: #3b2768;
    border: 1px solid #cdb8ff;
    font-weight: 500;
    font-size: 0.9375rem;
}

.yachai-chat-bubble-user {
    margin-left: auto;
    background: #0d6efd;
    color: #fff;
}

.yachai-progress-card {
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: none;
}

.yachai-progress-steps .alert {
    margin-bottom: 0.5rem;
    border: none;
}

.yachai-progress-steps .alert-info {
    background-color: #e7f1ff;
    color: #084298;
}

.yachai-progress-steps .alert-success {
    background-color: #d1e7dd;
    color: #0f5132;
}

.yachai-form textarea {
    resize: vertical;
}

/* Tarea: resumen corto en el índice del curso; artículo completo al abrir la tarea. */
.course-content .activity.assign .yachai-assign-body {
    display: none;
}

.path-mod-assign .yachai-listing-summary {
    display: none;
}

.path-mod-assign .yachai-assign-body {
    display: block;
}

.yachai-stock-image {
    margin: 1rem 0;
    text-align: center;
}

.yachai-stock-image img {
    max-width: 100%;
    height: auto;
    border-radius: 0.375rem;
}

.yachai-stock-image figcaption {
    margin-top: 0.35rem;
    font-size: 0.85rem;
    color: #6c757d;
}