/***********************************************************************
 * SECTION : Builder de cours (page /espace-membre/cours/creer)
 * - Styles spécifiques au builder JSON de leçon (admin)
 * - Padding top élevé pour éviter le chevauchement de la navbar
 **********************************************************************/
.lesson-layout {
    background: #f7f8fb;
    min-height: 100vh;
    padding: 190px 0 80px;
}
.lesson-container {
    max-width: 1500px;
    width: 98%;
}
.lesson-card {
    border: 1px solid #e4e6ed;
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 10px 40px rgba(31, 56, 93, 0.06);
}
.lesson-card-header {
    padding: 22px 24px;
    border-bottom: 1px solid #e4e6ed;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}
.lesson-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(42, 75, 124, 0.08);
    color: #2a4b7c;
    padding: 8px 12px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.9rem;
}
.lesson-meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
}
.lesson-layout .lesson-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 6px;
}
.lesson-layout .lesson-label-hint {
    font-weight: 500;
    color: #6b7280;
    font-size: 0.8rem;
}
.lesson-sidebar {
    position: sticky;
    top: 90px;
    padding: 20px;
    border-right: 1px solid #e4e6ed;
    height: calc(100vh - 160px);
    overflow-y: auto;
}
.lesson-block-category {
    margin-bottom: 18px;
}
.lesson-category-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #2a4b7c;
    margin-bottom: 10px;
}
.lesson-block-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 8px;
}
.lesson-block-item {
    border: 1px dashed #e4e6ed;
    padding: 10px;
    border-radius: 10px;
    background: #fff;
    cursor: grab;
    transition: all 0.2s;
    text-align: center;
    font-size: 0.9rem;
}
.lesson-block-item:hover {
    border-color: #2a4b7c;
    box-shadow: 0 4px 12px rgba(42, 75, 124, 0.1);
    transform: translateY(-2px);
}
.lesson-builder {
    padding: 22px;
}
.lesson-block {
    border: 1px solid #e4e6ed;
    border-radius: 10px;
    padding: 14px;
    margin-bottom: 12px;
    background: #fff;
    transition: border-color 0.2s, box-shadow 0.2s;
}
.lesson-block.dragging {
    opacity: 0.6;
}
.lesson-block:hover {
    border-color: #2a4b7c;
    box-shadow: 0 6px 18px rgba(42, 75, 124, 0.08);
}
.lesson-block-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #e4e6ed;
    padding-bottom: 8px;
    margin-bottom: 8px;
}
.lesson-block-title {
    font-weight: 700;
    color: #2a4b7c;
    font-size: 0.95rem;
}
.btn-icon {
    border: none;
    background: transparent;
    color: #5d6b78;
    padding: 4px 6px;
    border-radius: 6px;
}
.btn-icon:hover {
    background: rgba(0, 0, 0, 0.05);
    color: #2a4b7c;
}
.drag-placeholder {
    height: 50px;
    border: 2px dashed #2a4b7c;
    border-radius: 10px;
    margin: 8px 0;
    background: rgba(42, 75, 124, 0.04);
}
.lesson-actions {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
    padding-top: 12px;
    border-top: 1px solid #e4e6ed;
}
.lesson-layout .empty-state {
    text-align: center;
    padding: 30px 10px;
    color: #6c757d;
}
.badge-helper {
    background: rgba(243, 156, 18, 0.15);
    color: #c27c0e;
    padding: 6px 10px;
    border-radius: 16px;
    font-weight: 600;
    font-size: 0.85rem;
}
.lesson-builder input[type="text"],
.lesson-builder input[type="number"],
.lesson-builder select,
.lesson-builder textarea {
    background-color: #fff;
    color: #1f2937;
    border: 1px solid #e4e6ed;
    box-shadow: none;
}
.lesson-builder input::placeholder,
.lesson-builder textarea::placeholder {
    color: #6c757d;
    opacity: 1;
}

.lesson-builder .ql-toolbar.ql-snow,
.lesson-builder .lesson-fallback-toolbar {
    border: 1px solid #cbd5e1;
    border-bottom: 0;
    border-radius: 8px 8px 0 0;
    background: #f8fafc;
}

.lesson-builder :is(.editor-container, .block-tip .tip-editor-container, .character-image-text-editor, .ec-translation-editor, .ec-explanation-editor).ql-container.ql-snow,
.lesson-builder :is(.editor-container, .block-tip .tip-editor-container, .character-image-text-editor, .ec-translation-editor, .ec-explanation-editor).editor-container--fallback {
    min-height: 120px;
    border: 1px solid #cbd5e1;
    border-radius: 0 0 8px 8px;
    background: #fff;
}

.lesson-builder :is(.editor-container, .block-tip .tip-editor-container, .character-image-text-editor, .ec-translation-editor, .ec-explanation-editor) .ql-editor {
    min-height: 120px;
    padding: 12px 14px;
}

.lesson-builder :is(.editor-container, .block-tip .tip-editor-container, .character-image-text-editor, .ec-translation-editor, .ec-explanation-editor).editor-container--fallback {
    padding: 12px 14px;
}

.lesson-builder :is(.editor-container, .block-tip .tip-editor-container, .character-image-text-editor, .ec-translation-editor, .ec-explanation-editor) .ql-editor,
.lesson-builder :is(.editor-container, .block-tip .tip-editor-container, .character-image-text-editor, .ec-translation-editor, .ec-explanation-editor).editor-container--fallback {
    color: #374151;
    font-size: 0.98rem;
    line-height: 1.7;
}

.lesson-builder :is(.editor-container, .block-tip .tip-editor-container, .character-image-text-editor, .ec-translation-editor, .ec-explanation-editor) .ql-editor p,
.lesson-builder :is(.editor-container, .block-tip .tip-editor-container, .character-image-text-editor, .ec-translation-editor, .ec-explanation-editor).editor-container--fallback p {
    margin-top: 0;
    margin-bottom: 0.02em;
}

.lesson-builder :is(.editor-container, .block-tip .tip-editor-container, .character-image-text-editor, .ec-translation-editor, .ec-explanation-editor) .ql-editor p:has(> br:only-child),
.lesson-builder :is(.editor-container, .block-tip .tip-editor-container, .character-image-text-editor, .ec-translation-editor, .ec-explanation-editor).editor-container--fallback p:has(> br:only-child) {
    margin: 0;
    padding: 0.6em 0;
    line-height: 0;
    min-height: 0;
}

.lesson-builder :is(.editor-container, .block-tip .tip-editor-container, .character-image-text-editor, .ec-translation-editor, .ec-explanation-editor) .ql-editor p:has(> br:only-child) br,
.lesson-builder :is(.editor-container, .block-tip .tip-editor-container, .character-image-text-editor, .ec-translation-editor, .ec-explanation-editor).editor-container--fallback p:has(> br:only-child) br {
    display: block;
    height: 0;
    margin: 0;
    padding: 0;
    line-height: 0;
    overflow: hidden;
}

.lesson-builder :is(.editor-container, .block-tip .tip-editor-container, .character-image-text-editor, .ec-translation-editor, .ec-explanation-editor) .ql-editor :is(ul, ol),
.lesson-builder :is(.editor-container, .block-tip .tip-editor-container, .character-image-text-editor, .ec-translation-editor, .ec-explanation-editor).editor-container--fallback :is(ul, ol) {
    margin: 0.15em 0;
    padding-left: 1.5em;
}

.lesson-builder :is(.editor-container, .block-tip .tip-editor-container, .character-image-text-editor, .ec-translation-editor, .ec-explanation-editor) .ql-editor li,
.lesson-builder :is(.editor-container, .block-tip .tip-editor-container, .character-image-text-editor, .ec-translation-editor, .ec-explanation-editor).editor-container--fallback li {
    margin-bottom: 0.12em;
}

.lesson-builder .editor-container--fallback:empty::before {
    content: attr(data-placeholder);
    color: #9ca3af;
    pointer-events: none;
}

.lesson-builder .lesson-fallback-toolbar {
    min-height: 42px;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 8px;
    flex-wrap: wrap;
}

.lesson-builder .lesson-fallback-toolbar--compact {
    min-height: 24px;
    padding: 3px 4px;
    border-radius: 6px 6px 0 0;
    gap: 2px;
    flex-wrap: nowrap;
}

.lesson-builder .lesson-fallback-toolbar__button {
    width: 30px;
    height: 28px;
    border: 1px solid transparent;
    border-radius: 6px;
    background: transparent;
    color: #1f2937;
    line-height: 1;
}

.lesson-builder .lesson-fallback-toolbar__button:hover {
    border-color: #cbd5e1;
    background: #fff;
}

.lesson-builder .lesson-fallback-toolbar__button--bold {
    font-weight: 800;
}

.lesson-builder .lesson-fallback-toolbar__button--italic {
    font-style: italic;
}

.lesson-builder .lesson-fallback-toolbar__button--underline {
    text-decoration: underline;
}

.lesson-builder .lesson-fallback-toolbar__colors {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding-left: 6px;
    margin-left: 2px;
    border-left: 1px solid #dbe3ef;
}

.lesson-builder .lesson-fallback-toolbar__swatch {
    width: 22px;
    height: 22px;
    border: 1px solid rgba(15, 23, 42, 0.2);
    border-radius: 999px;
    padding: 0;
}

.lesson-builder .lesson-fallback-toolbar__swatch:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(15, 23, 42, 0.18);
}

.lesson-builder .lesson-fallback-toolbar--compact .lesson-fallback-toolbar__button {
    width: 18px;
    height: 18px;
    border-radius: 4px;
    font-size: 0.72rem;
}

.lesson-builder .lesson-fallback-toolbar--compact .lesson-fallback-toolbar__colors {
    gap: 2px;
    padding-left: 3px;
    margin-left: 1px;
}

.lesson-builder .lesson-fallback-toolbar--compact .lesson-fallback-toolbar__swatch {
    width: 12px;
    height: 12px;
}

.lesson-builder :is(.editor-container, .block-tip .tip-editor-container, .character-image-text-editor, .ec-translation-editor, .ec-explanation-editor).ql-container.ql-snow:focus-within,
.lesson-builder :is(.editor-container, .block-tip .tip-editor-container, .character-image-text-editor, .ec-translation-editor, .ec-explanation-editor).editor-container--fallback:focus {
    border-color: #2a4b7c;
    box-shadow: 0 0 0 3px rgba(42, 75, 124, 0.12);
}

.lesson-builder .table-cell-editor {
    border: 1px solid #dbe3ef;
    border-radius: 6px;
    background: #fff;
}

.lesson-builder .table-cell-editor.editor-container--fallback {
    min-height: 34px;
    padding: 0.25rem;
    border-radius: 0 0 6px 6px;
}

:is(.lesson-builder, .course-lesson-content) .course-color-red { color: #e60000; }
:is(.lesson-builder, .course-lesson-content) .course-color-orange { color: #ff9900; }
:is(.lesson-builder, .course-lesson-content) .course-color-green { color: #008a00; }
:is(.lesson-builder, .course-lesson-content) .course-color-blue { color: #0066cc; }
:is(.lesson-builder, .course-lesson-content) .course-color-purple { color: #9933ff; }
:is(.lesson-builder, .course-lesson-content) .course-color-000000 { color: #000000; }
:is(.lesson-builder, .course-lesson-content) .course-color-ffff00 { color: #ffff00; }
:is(.lesson-builder, .course-lesson-content) .course-color-ffffff { color: #ffffff; }
:is(.lesson-builder, .course-lesson-content) .course-color-facccc { color: #facccc; }
:is(.lesson-builder, .course-lesson-content) .course-color-ffebcc { color: #ffebcc; }
:is(.lesson-builder, .course-lesson-content) .course-color-ffffcc { color: #ffffcc; }
:is(.lesson-builder, .course-lesson-content) .course-color-cce8cc { color: #cce8cc; }
:is(.lesson-builder, .course-lesson-content) .course-color-cce0f5 { color: #cce0f5; }
:is(.lesson-builder, .course-lesson-content) .course-color-ebd6ff { color: #ebd6ff; }
:is(.lesson-builder, .course-lesson-content) .course-color-bbbbbb { color: #bbbbbb; }
:is(.lesson-builder, .course-lesson-content) .course-color-f06666 { color: #f06666; }
:is(.lesson-builder, .course-lesson-content) .course-color-ffc266 { color: #ffc266; }
:is(.lesson-builder, .course-lesson-content) .course-color-ffff66 { color: #ffff66; }
:is(.lesson-builder, .course-lesson-content) .course-color-66b966 { color: #66b966; }
:is(.lesson-builder, .course-lesson-content) .course-color-66a3e0 { color: #66a3e0; }
:is(.lesson-builder, .course-lesson-content) .course-color-c285ff { color: #c285ff; }
:is(.lesson-builder, .course-lesson-content) .course-color-888888 { color: #888888; }
:is(.lesson-builder, .course-lesson-content) .course-color-a10000 { color: #a10000; }
:is(.lesson-builder, .course-lesson-content) .course-color-b26b00 { color: #b26b00; }
:is(.lesson-builder, .course-lesson-content) .course-color-b2b200 { color: #b2b200; }
:is(.lesson-builder, .course-lesson-content) .course-color-006100 { color: #006100; }
:is(.lesson-builder, .course-lesson-content) .course-color-0047b2 { color: #0047b2; }
:is(.lesson-builder, .course-lesson-content) .course-color-6b24b2 { color: #6b24b2; }
:is(.lesson-builder, .course-lesson-content) .course-color-444444 { color: #444444; }
:is(.lesson-builder, .course-lesson-content) .course-color-5c0000 { color: #5c0000; }
:is(.lesson-builder, .course-lesson-content) .course-color-663d00 { color: #663d00; }
:is(.lesson-builder, .course-lesson-content) .course-color-666600 { color: #666600; }
:is(.lesson-builder, .course-lesson-content) .course-color-003700 { color: #003700; }
:is(.lesson-builder, .course-lesson-content) .course-color-002966 { color: #002966; }
:is(.lesson-builder, .course-lesson-content) .course-color-3d1466 { color: #3d1466; }

/* Gestionnaire particule (builder) */
.pm-builder {
    display: grid;
    grid-template-columns: minmax(260px, 360px) minmax(0, 1fr);
    gap: 16px;
    align-items: start;
}
@media (max-width: 1100px) {
    .pm-builder {
        grid-template-columns: 1fr;
    }
}
.pm-panel {
    background: #f8fafc;
    border: 1px solid #e4e6ed;
    border-radius: 14px;
    padding: 14px;
}
.pm-panel--preview {
    background: #fff;
}
.pm-panel-title {
    font-size: 0.85rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #2a4b7c;
    margin-bottom: 10px;
}
.pm-section-title {
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #2a4b7c;
    margin-bottom: 8px;
}
.pm-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 10px;
}
.pm-actions--secondary {
    margin-top: 8px;
}
.pm-list,
.pm-grid {
    display: grid;
    gap: 10px;
}
.pm-item {
    background: #fff;
    border: 1px solid #e4e6ed;
    border-radius: 12px;
    padding: 10px;
    display: grid;
    gap: 10px;
}
.pm-item-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}
.pm-item-title {
    font-weight: 700;
    color: #1f2937;
    font-size: 0.9rem;
}
.pm-mini-actions {
    display: flex;
    gap: 6px;
}
.pm-mini-btn {
    color: #4b5563;
}
.pm-mini-btn--danger {
    color: #b91c1c;
}
.pm-grid--2 {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}
.pm-field {
    margin: 0;
}
.pm-output {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "JetBrains Mono", monospace;
    font-size: 0.82rem;
    line-height: 1.4;
}
.pm-hint {
    font-size: 0.82rem;
    color: #6b7280;
    margin-top: 8px;
    line-height: 1.4;
}
.pm-preview {
    min-height: 120px;
}