/* Minimal base reset for consistent cross-browser defaults */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

input,
button,
textarea,
select {
    font: inherit;
}

:root {
    --charcoal-50: #F7F7F8;
    --charcoal-100: #E5E7EB;
    --charcoal-200: #D1D5DB;
    --charcoal-300: #9CA3AF;
    --charcoal-400: #6B7280;
    --charcoal-500: #4B5563;
    --charcoal-600: #374151;
    --charcoal-700: #2D2F34;
    --charcoal-800: #1F2328;
    --charcoal-900: #121417;

    --bg-base: #121417;
    --bg-panel: #1F2328;
    --bg-card: #2D2F34;
    --bg-surface: #1F2328;

    --primary-main: #86EFAC;
    --primary-hover: #4ADE80;
    --primary-active: #22C55E;
    --primary-light: #BBF7D0;

    --accent-main: #86EFAC;
    --accent-hover: #4ADE80;

    --secondary-main: #D1D5DB;
    --secondary-muted: #9CA3AF;

    --text-primary: #F7F7F8;
    --text-secondary: #D1D5DB;
    --text-muted: #9CA3AF;
    --text-inverse: #121417;

    --border-default: #374151;
    --border-subtle: #2D2F34;

    --state-success: #22C55E;
    --state-warning: #F59E0B;
    --state-error: #EF4444;
    --state-info: #38BDF8;
}

body {
    min-height: 100vh;
    font-family: sans-serif;
    line-height: 1.5;
    background: var(--bg-base);
    color: var(--text-primary);
}

a {
    color: inherit;
    text-decoration-thickness: 0.08em;
    text-underline-offset: 0.12em;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0;
    line-height: 1.2;
    text-wrap: balance;
}

p,
ul,
ol {
    margin: 0;
}

ul,
ol {
    padding-left: 1.25rem;
}

.container {
    width: 100%;
    margin-inline: 0;
    padding-inline: 3px;
    padding-block: 1.5rem;
}

.page-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
}

.panel {
    padding: 1rem;
    border: 1px solid var(--border-default);
    border-radius: 0.75rem;
    background: var(--bg-panel);
}

.inner-panel {
    margin-top: 1rem;
    background: var(--bg-card);
    border-color: var(--border-subtle);
}

.element-label {
    display: inline-block;
    margin-bottom: 0.5rem;
    padding: 0.2rem 0.5rem;
    border-radius: 999px;
    background: var(--primary-main);
    color: var(--text-inverse);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.site-header,
.site-footer {
    margin-top: 1rem;
}

.app-header {
    margin-top: 0;
    padding-top: 0;
    border-radius: 0;
    min-height: 100px;
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-panel);
    color: var(--text-primary);
    border-color: var(--border-default);
}

.app-header a {
    color: var(--text-primary);
}

.danger-btn {
    margin-top: 0.45rem;
    border: 1px solid var(--state-error);
    border-radius: 0.35rem;
    padding: 0.3rem 0.55rem;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
}

.danger-btn:hover {
    background: var(--accent-hover);
}

.danger-btn:active {
    background: var(--accent-main);
}

.secondary-btn {
    border: 1px solid var(--border-subtle);
    border-radius: 0.35rem;
    padding: 0.3rem 0.55rem;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    white-space: nowrap;
}

.secondary-btn:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    color: var(--text-inverse);
}

.secondary-btn:active {
    background: var(--primary-main);
    border-color: var(--primary-main);
    color: var(--text-inverse);
}

.danger-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.split-layout {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
    margin-top: 1rem;
    margin-bottom: 1rem;
}

.left-pane,
.right-pane {
    min-height: 300px;
}

.right-pane {
    min-height: auto;
    padding: 0.8rem;
}

.status-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-top: 0.45rem;
    margin-bottom: 0.45rem;
}

.status-text {
    margin: 0;
}

.status-text.is-blurred {
    filter: blur(5px);
    user-select: none;
}

.archetype-grid {
    margin-block: 0.5rem;
}

nav ul,
aside ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
    list-style-position: inside;
    padding-left: 0;
}

address {
    font-style: normal;
    margin-top: 0.75rem;
}

.form-demo {
    display: grid;
    gap: 0.6rem;
}

.form-demo input,
.form-demo select,
.form-demo textarea,
.form-demo button {
    width: 100%;
    border: 1px solid var(--border-default);
    border-radius: 0.45rem;
    padding: 0.55rem 0.7rem;
    background: var(--bg-card);
    color: var(--text-primary);
}

.form-demo fieldset {
    border: 1px solid var(--border-default);
    border-radius: 0.45rem;
    padding: 0.7rem;
    display: grid;
    gap: 0.4rem;
}

.form-demo label {
    font-weight: 600;
}

.form-demo fieldset label {
    font-weight: 400;
}

.form-actions {
    display: flex;
    gap: 0.6rem;
}

.form-actions button {
    cursor: pointer;
}

.toc-panel {
    margin-top: 1rem;
}

.muted {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.35rem;
}

.toc-overview {
    margin-top: 0.7rem;
    border: 1px solid var(--border-default);
    border-radius: 0.45rem;
    background: var(--bg-card);
    padding: 0.25rem;
}

.taxonomy-tree {
    font-size: 0.92rem;
    font-family: Consolas, "Courier New", monospace;
}

.tree-root {
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.tree-category-list,
.tree-topic-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.tree-category-list {
    display: block;
}

.tree-category-block {
    margin: 0.14rem 0;
    display: block;
    width: 100%;
}

.tree-category-line {
    display: block;
}

.tree-branch {
    color: var(--text-muted);
    margin-right: 0.25rem;
}

.tree-category-label {
    font-weight: 600;
    color: var(--text-primary);
}

.tree-topic-list {
    margin-left: 0;
    margin-top: 0.12rem;
}

.tree-topic-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.22rem;
    margin: 0.08rem 0;
}

.tree-topic-branch {
    color: var(--secondary-muted);
    flex: 0 0 auto;
    line-height: 1.25;
}

.toc-topic-name {
    font-weight: 600;
}

.toc-link {
    background: none;
    border: 0;
    padding: 0;
    color: var(--state-info);
    text-decoration: underline;
    cursor: pointer;
    text-align: left;
    width: auto;
    line-height: 1.25;
    display: inline;
}

.toc-link.is-active .toc-topic-name {
    color: var(--primary-active);
    text-decoration: underline;
}

.toc-link.is-active {
    background: transparent;
}

.tree-topic-link {
    margin-top: 0;
}

.result-box {
    margin-top: 0.45rem;
    padding: 0.5rem;
    border: 1px solid var(--border-default);
    border-radius: 0.45rem;
    background: var(--bg-card);
    min-height: 90px;
    white-space: pre-wrap;
    word-break: break-word;
}

.result-card {
    display: grid;
    gap: 0.12rem;
}

.result-card h3 {
    margin-top: 0.35rem;
    margin-bottom: 0.1rem;
}

.compact-title {
    font-size: 0.96rem;
}

.compact-text {
    margin: 0;
}

.metadata-inline {
    color: var(--text-primary);
    font-size: 0.88rem;
}

.layer-note {
    color: var(--text-muted);
    font-size: 0.82rem;
}

.compact-subtitle {
    margin: 0.08rem 0 0;
    color: var(--text-primary);
    font-size: 0.84rem;
}

.relation-list {
    margin-top: 0.02rem;
}

.topic-id-link {
    background: none;
    border: 0;
    padding: 0;
    color: var(--state-info);
    text-decoration: underline;
    cursor: pointer;
    font: inherit;
    text-align: left;
}

.topic-id-chip {
    display: inline-block;
    border: 1px solid var(--border-default);
    border-radius: 999px;
    padding: 0.04rem 0.35rem;
    font-size: 0.8rem;
    color: var(--text-primary);
    background: var(--bg-surface);
}

.compact-bullet-list,
.compact-number-list {
    margin: 0.05rem 0 0.12rem;
    padding-left: 1rem;
    line-height: 1.25;
}

.compact-bullet-list li,
.compact-number-list li {
    margin: 0.05rem 0;
}

.classification-inline {
    margin: 0.18rem 0;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.classification-legend {
    margin: 0 0 0.1rem;
    color: var(--text-muted);
    font-size: 0.82rem;
    line-height: 1.2;
}

.delete-mark-row {
    margin-top: 0.1rem;
    font-size: 0.84rem;
    color: var(--text-muted);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.source-label {
    margin: 0.12rem 0 0;
    font-size: 0.88rem;
    color: var(--text-primary);
}

.source-text-box {
    max-height: 2.4em;
    overflow: hidden;
    border: 1px solid var(--border-default);
    border-radius: 0.3rem;
    background: var(--bg-surface);
    padding: 0.2rem 0.35rem;
    font-size: 0.82rem;
    line-height: 1.2;
    white-space: pre-wrap;
    word-break: break-word;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.result-card h3:first-child {
    margin-top: 0;
}

.inline-link {
    background: none;
    border: 0;
    padding: 0;
    margin: 0;
    color: var(--state-info);
    text-decoration: underline;
    cursor: pointer;
    font: inherit;
}

.diagram-box {
    margin-top: 0.1rem;
    padding: 0.35rem;
    border: 1px solid var(--border-default);
    border-radius: 0.35rem;
    background: var(--bg-surface);
    white-space: pre;
    overflow-x: auto;
    font-size: 0.77rem;
    line-height: 1.1;
}

@media (min-width: 768px) {
    .page-grid {
        grid-template-columns: 240px 1fr;
        align-items: start;
    }

    .split-layout {
        grid-template-columns: minmax(0, 3fr) minmax(0, 7fr);
        align-items: start;
    }

    .archetype-grid {
        grid-template-columns: 2fr 1fr;
    }
}