/* Live Markdown Editor — extends site tokens via styles.css */

.tool-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Same stacking as family-tree: keep site header above any high z-index in main */
body.tool-page > header {
    z-index: 11000;
}
body.tool-page .skip-link {
    z-index: 12000;
}

.tool-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 5.5rem 1.25rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    box-sizing: border-box;
}

.tool-breadcrumb {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}
.tool-breadcrumb a {
    color: var(--text-secondary);
    text-decoration: none;
}
.tool-breadcrumb a:hover {
    color: var(--text);
    text-decoration: underline;
}

.tool-header-block {
    margin-bottom: 1rem;
}
.tool-header-block--with-icon {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}
.tool-header-block--with-icon .tool-icon-notion--hero {
    width: 2.25rem;
    height: 2.25rem;
    margin-top: 0.15rem;
    color: var(--text-muted);
    display: block;
    flex-shrink: 0;
}
.tool-header-text {
    flex: 1;
    min-width: 0;
}
.tool-header-block h1 {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 0.35rem;
}
.tool-header-block p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    max-width: 42rem;
}

.md-files-panel {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-secondary);
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
}
.md-files-panel-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}
#md-file-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
    min-height: 2rem;
}
.md-file-list-empty {
    color: var(--text-muted);
    font-size: 0.875rem;
}
.md-file-tab-wrap {
    display: inline-flex;
    align-items: center;
    gap: 0.15rem;
    max-width: 100%;
}
.md-file-tab {
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    padding: 0.35rem 0.65rem;
    font-size: 0.8125rem;
    font-family: inherit;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}
.md-file-tab:hover {
    border-color: var(--border-hover);
    color: var(--text);
}
.md-file-tab.is-active {
    border-color: var(--text);
    color: var(--text);
    font-weight: 600;
    background: var(--bg-tertiary);
}
.md-file-remove {
    width: 1.5rem;
    height: 1.5rem;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    border-radius: var(--radius-sm);
}
.md-file-remove:hover {
    background: var(--bg-tertiary);
    color: var(--text);
}

.tool-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
    align-items: center;
}
.tool-toolbar .tool-btn.is-hidden {
    display: none;
}
.tool-toolbar .tool-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 0.875rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text);
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition);
}
.tool-toolbar .tool-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-hover);
}
.tool-toolbar .tool-btn-primary {
    background: var(--btn-primary-bg);
    color: var(--btn-primary-text);
    border-color: var(--btn-primary-bg);
}
.tool-toolbar .tool-btn-primary:hover {
    background: var(--accent-hover);
}
[data-theme="dark"] .tool-toolbar .tool-btn-primary:hover {
    background: #ffffff;
}

.tool-panels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    flex: 1;
    min-height: 0;
}

.tool-panel {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--bg);
    min-height: 320px;
}

.tool-panel-header {
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
}

.md-format-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem;
    padding: 0.4rem 0.5rem;
    border-bottom: 1px solid var(--border);
    background: var(--bg);
}
.md-fmt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    padding: 0;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.8125rem;
    transition: var(--transition);
}
.md-fmt-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--border);
    color: var(--text);
}
.md-fmt-btn:focus-visible {
    outline: 2px solid var(--text);
    outline-offset: 2px;
}
.md-fmt-sep {
    width: 1px;
    height: 1.25rem;
    margin: 0 0.15rem;
    background: var(--border);
    flex-shrink: 0;
}

#md-editor {
    flex: 1;
    width: 100%;
    min-height: 280px;
    padding: 0.75rem 1rem;
    border: none;
    resize: none;
    font-family: ui-monospace, 'SF Mono', 'Consolas', monospace;
    font-size: 0.875rem;
    line-height: 1.55;
    background: var(--bg);
    color: var(--text);
}
#md-editor:focus {
    outline: none;
}

#md-preview {
    flex: 1;
    padding: 0.75rem 1rem;
    overflow: auto;
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg-secondary);
}
#md-preview h1, #md-preview h2, #md-preview h3 {
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}
#md-preview h1 { font-size: 1.35rem; }
#md-preview h2 { font-size: 1.15rem; }
#md-preview p { margin-bottom: 0.75rem; }
#md-preview ul, #md-preview ol {
    margin-bottom: 0.75rem;
    padding-left: 1.25rem;
}
#md-preview code {
    font-family: ui-monospace, monospace;
    font-size: 0.85em;
    background: var(--bg-tertiary);
    padding: 0.1em 0.35em;
    border-radius: 4px;
}
#md-preview pre {
    background: var(--bg-tertiary);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    overflow-x: auto;
    margin-bottom: 0.75rem;
}
#md-preview pre code {
    background: none;
    padding: 0;
}
#md-preview blockquote {
    border-left: 3px solid var(--border);
    margin: 0.75rem 0;
    padding-left: 1rem;
    color: var(--text-secondary);
}
#md-preview table {
    border-collapse: collapse;
    width: 100%;
    margin-bottom: 0.75rem;
    font-size: 0.875rem;
}
#md-preview th,
#md-preview td {
    border: 1px solid var(--border);
    padding: 0.4rem 0.5rem;
    text-align: left;
    vertical-align: top;
}
#md-preview thead th {
    font-weight: 600;
    background: var(--bg-tertiary);
}
#md-preview a {
    color: var(--text);
}

.tool-hint {
    margin-top: 1rem;
    font-size: 0.8125rem;
    color: var(--text-muted);
    max-width: 42rem;
}

.tool-toast {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    padding: 0.65rem 1rem;
    background: var(--btn-primary-bg);
    color: var(--btn-primary-text);
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.2s, transform 0.2s;
    pointer-events: none;
    z-index: 10000;
}
.tool-toast.is-visible {
    opacity: 1;
    transform: translateY(0);
}

#file-input {
    position: absolute;
    width: 0;
    height: 0;
    opacity: 0;
    pointer-events: none;
}

@media (max-width: 900px) {
    .tool-panels {
        grid-template-columns: 1fr;
    }
    .tool-panel {
        min-height: 240px;
    }
}