/* Widget framework core styles */
:root {
    --kb-widget-surface: #f8fbff;
    --kb-widget-border: #d7e6f6;
    --kb-widget-border-strong: #b6d1ea;
    --kb-widget-shadow: 0 2px 8px rgba(20, 56, 92, 0.08);
    --kb-widget-title: #153a59;
    --kb-widget-text: #2b3e50;
    --kb-widget-subtle: #5f7083;
    --kb-widget-chip-bg: #e9f3fc;
    --kb-widget-chip-text: #1e4e77;
    --kb-widget-transclude-surface-start: #f4f9ff;
    --kb-widget-transclude-surface-end: #eef6ff;
    --kb-widget-transclude-border: #a6c9e6;
    --kb-widget-transclude-header-border: #d2e4f5;
}

.kb-widget-placeholder {
    display: block;
    margin: 1rem 0;
    padding: 0.65rem 0.8rem;
    border-radius: 0.5rem;
    border: 1px dashed var(--kb-widget-border-strong);
    background: linear-gradient(180deg, #eef7ff 0%, #e6f3ff 100%);
    color: var(--kb-widget-subtle);
    font-family: Consolas, 'Courier New', monospace;
    font-size: 0.9rem;
}

.kb-widget {
    display: block;
    margin: 1.25rem 0;
    padding: 0.9rem 1rem;
    border-radius: 0.75rem;
    border: 1px solid var(--kb-widget-border);
    background: var(--kb-widget-surface);
    color: var(--kb-widget-text);
    box-shadow: var(--kb-widget-shadow);
}

.kb-widget + .kb-widget {
    margin-top: 1.5rem;
}

.kb-widget .kb-widget-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.kb-widget .kb-widget-title {
    margin: 0;
    color: var(--kb-widget-title);
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.25;
}

.kb-widget .kb-widget-subtitle {
    color: var(--kb-widget-subtle);
    font-size: 0.9rem;
}

.kb-widget .kb-widget-body {
    min-height: 1.25rem;
}

.kb-widget .kb-widget-empty,
.kb-widget .kb-widget-loading,
.kb-widget .kb-widget-error {
    margin: 0;
    font-size: 0.92rem;
    color: var(--kb-widget-subtle);
}

/* Step 7.3 block positioning */
.kb-widget-block {
    float: none;
    width: 100%;
    max-width: 100%;
    clear: both;
}

/* Step 7.4 float positioning */
.kb-widget-float-left,
.kb-widget-float-right {
    width: min(24rem, 48%);
    max-width: 100%;
}

.kb-widget-float-left {
    float: left;
    margin: 0.4rem 1rem 0.8rem 0;
}

.kb-widget-float-right {
    float: right;
    margin: 0.4rem 0 0.8rem 1rem;
}

.article-content::after {
    content: '';
    display: block;
    clear: both;
}

/* Step 7.6 widget-specific styles */
.kb-widget[data-widget-type='search'] .kb-widget-body {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.kb-widget[data-widget-type='search'] input[type='search'],
.kb-widget[data-widget-type='search'] input[type='text'] {
    flex: 1 1 14rem;
    min-height: 2.25rem;
    border: 1px solid var(--kb-widget-border-strong);
    border-radius: 0.5rem;
    padding: 0.4rem 0.65rem;
}

.kb-widget[data-widget-type='search'] button,
.kb-widget[data-widget-type='search'] .btn {
    min-height: 2.25rem;
    border-radius: 0.5rem;
}

.kb-widget[data-widget-type='categories'] ul,
.kb-widget[data-widget-type='featured-articles'] ul,
.kb-widget[data-widget-type='recent-articles'] ul {
    margin: 0;
    padding-left: 1rem;
}

.kb-widget[data-widget-type='categories'] li,
.kb-widget[data-widget-type='featured-articles'] li,
.kb-widget[data-widget-type='recent-articles'] li {
    margin: 0.2rem 0;
}

.kb-featured-groups-grid,
.kb-widget-groups-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}

.kb-featured-group-card,
.kb-widget-group-card {
    border: 1px solid var(--kb-widget-border);
    border-radius: 0.6rem;
    background: var(--kb-widget-surface);
    padding: 0.65rem 0.75rem;
}

.kb-featured-group-header,
.kb-widget-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.45rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid var(--kb-widget-border);
}

.kb-featured-group-title,
.kb-widget-group-title {
    margin: 0;
    font-size: 0.96rem;
    font-weight: 700;
    color: var(--kb-widget-title);
}

.kb-widget[data-widget-type='tag-wordcloud'] .kb-widget-body,
.kb-widget[data-widget-type='tag-wordcloud'] {
    line-height: 1.75;
}

.kb-tag-wordcloud-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    align-items: center;
}

.kb-tag-wordcloud-canvas {
    width: 100%;
    min-height: 220px;
}

.kb-tag-wordcloud-svg {
    display: block;
}

.kb-tag-wordcloud-svg-link {
    text-decoration: none;
}

.kb-tag-wordcloud-svg-text {
    transition: opacity 120ms ease, transform 120ms ease;
}

.kb-tag-wordcloud-svg-link:hover .kb-tag-wordcloud-svg-text,
.kb-tag-wordcloud-svg-link:focus-visible .kb-tag-wordcloud-svg-text {
    opacity: 0.82;
}

.kb-tag-wordcloud-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    background: var(--kb-widget-chip-bg);
    color: var(--kb-widget-chip-text);
    text-decoration: none;
    font-weight: 600;
    line-height: 1.1;
    transition: transform 120ms ease, box-shadow 120ms ease, opacity 120ms ease;
}

.kb-tag-wordcloud-link:hover,
.kb-tag-wordcloud-link:focus-visible {
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.16);
    text-decoration: none;
    opacity: 0.96;
}

.kb-tag-wordcloud-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.4rem;
    height: 1.4rem;
    padding: 0 0.35rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.84);
    color: rgba(0, 0, 0, 0.75);
    font-size: 0.74em;
    font-weight: 700;
}

.kb-widget[data-widget-type='tag-wordcloud'] .kb-tag {
    display: inline-block;
    margin: 0.1rem 0.35rem 0.1rem 0;
    padding: 0.15rem 0.45rem;
    border-radius: 999px;
    background: var(--kb-widget-chip-bg);
    color: var(--kb-widget-chip-text);
    text-decoration: none;
}

/* Step 7.7 transclusion styles */
.kb-widget[data-widget-type='transclude'],
.kb-widget-transclude {
    border-color: var(--kb-widget-transclude-border);
    background: linear-gradient(180deg, var(--kb-widget-transclude-surface-start) 0%, var(--kb-widget-transclude-surface-end) 100%);
}

.kb-widget[data-widget-type='transclude'] .kb-widget-header,
.kb-widget-transclude .kb-widget-header,
.kb-widget-transclude-header {
    margin-bottom: 0.65rem;
    padding-bottom: 0.45rem;
    border-bottom: 1px solid var(--kb-widget-transclude-header-border);
}

.kb-widget[data-widget-type='transclude'] .kb-widget-body,
.kb-widget-transclude .kb-widget-body,
.kb-widget-transclude-content {
    font-size: 0.95rem;
    color: var(--kb-widget-text);
}

.kb-widget-transclude-content :where(p, li, blockquote, h1, h2, h3, h4, h5, h6, td, th, label, small) {
    color: inherit;
}

.kb-widget-transclude-content a {
    color: var(--bs-link-color);
}

.kb-widget-transclude-content a:hover,
.kb-widget-transclude-content a:focus-visible {
    color: var(--bs-link-hover-color);
}

.kb-widget-transclude-content code,
.kb-widget-transclude-content pre,
.kb-widget-transclude-content kbd,
.kb-widget-transclude-content samp {
    color: var(--bs-body-color);
    background-color: var(--bs-tertiary-bg);
}

.kb-widget[data-widget-inline='true'] {
    margin: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}

/* Step 7.5 mobile responsive float fallback */
@media (max-width: 900px) {
    .kb-widget {
        padding: 0.8rem 0.85rem;
    }

    .kb-featured-groups-grid,
    .kb-widget-groups-grid {
        grid-template-columns: 1fr;
    }

    .kb-widget-float-left,
    .kb-widget-float-right {
        float: none;
        width: 100%;
        margin: 0.7rem 0;
    }
}

/* Dark theme harmonization */
html[data-bs-theme='dark'] {
    --kb-widget-surface: #1f2630;
    --kb-widget-border: #394858;
    --kb-widget-border-strong: #4f667b;
    --kb-widget-shadow: 0 4px 14px rgba(0, 0, 0, 0.28);
    --kb-widget-title: #c6defa;
    --kb-widget-text: #d0d8e1;
    --kb-widget-subtle: #9eb0c3;
    --kb-widget-chip-bg: #2f4155;
    --kb-widget-chip-text: #cae4ff;
    --kb-widget-transclude-surface-start: #223242;
    --kb-widget-transclude-surface-end: #1d2b39;
    --kb-widget-transclude-border: #46627e;
    --kb-widget-transclude-header-border: #3f566e;
}

html[data-bs-theme='dark'] .kb-widget-placeholder {
    background: linear-gradient(180deg, #1f3345 0%, #1a2e3f 100%);
}