:host {
    display: block;
    width: 100%;
}
.hb-editor {
    all: initial;
    box-sizing: border-box;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    font-size: 14px;
    color: #1a1a1a;
    display: grid;
    grid-template-columns: 160px 1fr 280px;
    gap: 12px;
    width: 100%;
    min-height: 480px;
    background: #f7f7f9;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 12px;
}
.hb-editor *, .hb-editor *::before, .hb-editor *::after {
    box-sizing: border-box;
    font-family: inherit;
}
.hb-editor--readonly .hb-palette,
.hb-editor--readonly .hb-canvas-block__toolbar {
    display: none;
}

/* Palette */
.hb-palette__title {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: #666;
    margin: 0 0 8px;
}
.hb-palette__grid {
    display: grid;
    gap: 6px;
}
.hb-palette__item {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 8px 10px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 6px;
    cursor: grab;
    text-align: left;
}
.hb-palette__item:hover { border-color: #6750A4; }
.hb-palette__icon { width: 18px; text-align: center; font-weight: 700; color: #6750A4; }
.hb-palette__label { font-size: 12px; }
.hb-palette__section { margin-top: 18px; }
.hb-palette__subtitle {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: #888;
    margin: 0 0 6px;
}
.hb-snippet-list { display: grid; gap: 4px; }
.hb-snippet-item { display: flex; align-items: stretch; gap: 4px; }
.hb-snippet-item__insert {
    flex: 1;
    text-align: left;
    padding: 6px 8px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.hb-snippet-item__insert:hover { border-color: #6750A4; }
.hb-snippet-item__delete {
    border: 1px solid #ddd;
    background: #fff;
    border-radius: 6px;
    cursor: pointer;
    color: #888;
    padding: 0 8px;
}
.hb-preview-generic {
    padding: 10px;
    background: #f2f2f5;
    border-radius: 4px;
    color: #666;
    font-size: 12px;
    font-style: italic;
}

/* Canvas */
.hb-canvas {
    position: relative;
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    padding: 16px;
    overflow-y: auto;
    max-height: 640px;
}
.hb-canvas__empty {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 200px;
    color: #999;
    border: 2px dashed #ddd;
    border-radius: 6px;
}
.hb-canvas-block {
    position: relative;
    border: 1px solid transparent;
    border-radius: 6px;
    margin-bottom: 8px;
    cursor: pointer;
}
.hb-canvas-block:hover { border-color: #ddd; }
.hb-canvas-block--selected { border-color: #6750A4 !important; box-shadow: 0 0 0 1px #6750A4; }
.hb-canvas-block__toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
    color: #888;
    padding: 2px 6px;
    opacity: 0;
    transition: opacity .1s;
}
.hb-canvas-block:hover .hb-canvas-block__toolbar,
.hb-canvas-block--selected .hb-canvas-block__toolbar { opacity: 1; }
.hb-canvas-block__actions button {
    border: none;
    background: none;
    cursor: pointer;
    padding: 2px 4px;
    color: #555;
}
.hb-canvas-block__actions button:disabled { opacity: .3; cursor: default; }
.hb-canvas-block__preview { padding: 6px 8px; }
.hb-preview-text, .hb-preview-heading { outline: none; min-height: 1.4em; }
.hb-preview-text p { margin: 0 0 8px; }
.hb-preview-heading { font-weight: 700; }
.hb-preview-button {
    display: inline-block;
    padding: 10px 22px;
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
}
.hb-preview-image { max-width: 100%; display: block; margin: 0 auto; }
.hb-preview-image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    background: #f2f2f5;
    border: 1px dashed #ccc;
    border-radius: 6px;
    color: #999;
}
.hb-preview-divider { border: none; border-top: 1px solid #ddd; margin: 0 auto; }
.hb-preview-spacer {
    display: flex;
    align-items: center;
    justify-content: center;
    background: repeating-linear-gradient(45deg, #f0f0f3, #f0f0f3 6px, #e6e6ea 6px, #e6e6ea 12px);
    color: #999;
    font-size: 11px;
    border-radius: 4px;
}
.hb-preview-social { display: flex; gap: 10px; flex-wrap: wrap; }
.hb-preview-social__link {
    padding: 4px 10px;
    background: #f2f2f5;
    border-radius: 999px;
    font-size: 12px;
    text-transform: capitalize;
}
.hb-preview-columns { display: grid; gap: 10px; }
.hb-preview-columns__col {
    border: 1px dashed #ddd;
    border-radius: 4px;
    padding: 8px;
    min-height: 40px;
}

/* Mini-éditeur imbriqué dans une colonne (1 niveau, pas de drag & drop, cf. hors-scope V2) */
.hb-mini-palette {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 8px;
}
.hb-mini-palette button {
    width: 26px;
    height: 26px;
    border: 1px solid #ddd;
    background: #fff;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 700;
    color: #6750A4;
}
.hb-mini-palette button:hover { border-color: #6750A4; }
.hb-mini-canvas { display: grid; gap: 6px; }
.hb-mini-canvas__empty {
    text-align: center;
    color: #999;
    font-size: 11px;
    padding: 8px;
}
.hb-mini-block {
    border: 1px solid #e5e5e5;
    border-radius: 4px;
    background: #fff;
    cursor: pointer;
}
.hb-mini-block:hover { border-color: #bbb; }
.hb-mini-block--selected { border-color: #6750A4; box-shadow: 0 0 0 1px #6750A4; }
.hb-mini-block__toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 10px;
    color: #888;
    padding: 2px 4px;
}
.hb-mini-block__toolbar button {
    border: none;
    background: none;
    cursor: pointer;
    padding: 1px 3px;
    font-size: 11px;
    color: #666;
}
.hb-mini-block__toolbar button:disabled { opacity: .3; cursor: default; }
.hb-mini-block__preview {
    padding: 4px 6px 6px;
    font-size: 12px;
    color: #333;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.hb-preview-html {
    padding: 10px;
    background: #f2f2f5;
    border-radius: 4px;
    color: #666;
    font-family: ui-monospace, monospace;
    font-size: 12px;
}
.hb-drop-indicator {
    position: absolute;
    left: 16px;
    right: 16px;
    height: 2px;
    background: #6750A4;
}

/* Properties panel */
.hb-props {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    padding: 12px;
    overflow-y: auto;
    max-height: 640px;
}
.hb-props__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}
.hb-props__header h3 { margin: 0; font-size: 13px; }
.hb-props__header button {
    border: none;
    background: none;
    cursor: pointer;
    font-size: 14px;
    color: #888;
}
.hb-props__toolbar {
    display: flex;
    gap: 4px;
    margin-bottom: 10px;
}
.hb-props__toolbar button {
    border: 1px solid #ddd;
    background: #fff;
    border-radius: 4px;
    padding: 4px 8px;
    cursor: pointer;
    font-size: 12px;
}
.hb-field { margin-bottom: 12px; }
.hb-field label {
    display: block;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .03em;
    color: #777;
    margin-bottom: 4px;
}
.hb-field input[type="text"],
.hb-field input[type="number"],
.hb-field select,
.hb-field textarea {
    width: 100%;
    padding: 6px 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 13px;
}
.hb-field input[type="color"] { width: 44px; height: 28px; padding: 0; border: 1px solid #ddd; border-radius: 4px; }
.hb-field-row { display: flex; gap: 6px; }
.hb-field-row input { flex: 1; }
.hb-field-row button { border: 1px solid #ddd; background: #f7f7f9; border-radius: 4px; padding: 0 10px; cursor: pointer; font-size: 12px; }
.hb-align-group { display: flex; gap: 4px; }
.hb-align-group button {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #ddd;
    background: #fff;
    color: #444;
    border-radius: 4px;
    padding: 8px 6px;
    cursor: pointer;
}
.hb-align-group button svg { display: block; }
.hb-align-group button.hb-active { background: #6750A4; color: #fff; border-color: #6750A4; }
.hb-social-row { display: flex; gap: 6px; margin-bottom: 6px; align-items: center; }
.hb-social-row select { flex: 0 0 110px; }
.hb-social-row input { flex: 1; }
.hb-social-row button { border: none; background: none; cursor: pointer; color: #888; }
.hb-btn-add {
    width: 100%;
    border: 1px dashed #bbb;
    background: none;
    border-radius: 4px;
    padding: 6px;
    cursor: pointer;
    font-size: 12px;
    color: #555;
    margin: 6px 0 14px;
}
.hb-hint { font-size: 12px; color: #888; }

@media (max-width: 720px) {
    .hb-editor { grid-template-columns: 1fr; }
}