/*
 * CodeSense Markdown
 *
 * A quiet, block-based reading surface inspired by Feishu Docs.  The
 * renderer adds .cs-markdown to AI-generated content so that the same visual
 * language is shared by chat bubbles, reports, feedback and assignment text.
 */

:root {
    --cs-md-ink: #1f2937;
    --cs-md-muted: #64748b;
    --cs-md-subtle: #94a3b8;
    --cs-md-border: #e5eaf1;
    --cs-md-border-strong: #d7dee9;
    --cs-md-surface: #ffffff;
    --cs-md-surface-soft: #f8fafc;
    --cs-md-surface-blue: #f3f7ff;
    --cs-md-accent: #2563eb;
    --cs-md-accent-soft: #dbeafe;
    --cs-md-success: #059669;
    --cs-md-warning: #d97706;
    --cs-md-danger: #dc2626;
    --cs-md-code: #0f172a;
    --cs-md-code-ink: #e2e8f0;
    --cs-md-radius: 10px;
}

/* The class is intentionally also present on legacy markdown containers. */
.cs-markdown,
.markdown-content.cs-markdown,
.markdown-body.cs-markdown {
    box-sizing: border-box;
    color: var(--cs-md-ink);
    font-size: 0.96rem;
    line-height: 1.78;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.cs-markdown > :first-child {
    margin-top: 0;
}

.cs-markdown > :last-child {
    margin-bottom: 0;
}

.cs-markdown p {
    color: #334155;
    margin: 0 0 0.9rem;
}

.cs-markdown strong {
    color: #172033;
    font-weight: 700;
}

.cs-markdown em {
    color: #475569;
}

.cs-markdown del {
    color: var(--cs-md-muted);
}

.cs-markdown a {
    color: var(--cs-md-accent);
    text-decoration: none;
    text-underline-offset: 3px;
}

.cs-markdown a:hover {
    text-decoration: underline;
}

.cs-markdown h1,
.cs-markdown h2,
.cs-markdown h3,
.cs-markdown h4,
.cs-markdown h5,
.cs-markdown h6 {
    color: #172033;
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.35;
}

.cs-markdown h1 {
    border-bottom: 1px solid var(--cs-md-border);
    font-size: 1.55rem;
    margin: 0 0 1.25rem;
    padding: 0 0 0.7rem;
}

.cs-markdown h2 {
    background: linear-gradient(90deg, var(--cs-md-surface-blue), rgba(243, 247, 255, 0));
    border-left: 3px solid var(--cs-md-accent);
    border-radius: 0 6px 6px 0;
    font-size: 1.2rem;
    margin: 1.65rem 0 0.75rem;
    padding: 0.42rem 0.7rem;
}

.cs-markdown h3 {
    border-bottom: 1px solid var(--cs-md-border);
    font-size: 1.04rem;
    margin: 1.35rem 0 0.65rem;
    padding-bottom: 0.35rem;
}

.cs-markdown h4,
.cs-markdown h5,
.cs-markdown h6 {
    font-size: 0.98rem;
    margin: 1rem 0 0.5rem;
}

.cs-markdown ul,
.cs-markdown ol {
    color: #334155;
    margin: 0 0 1rem;
    padding-left: 1.45rem;
}

.cs-markdown li {
    margin: 0.28rem 0;
    padding-left: 0.15rem;
}

.cs-markdown li > ul,
.cs-markdown li > ol {
    margin-bottom: 0.35rem;
    margin-top: 0.35rem;
}

.cs-markdown li::marker {
    color: #64748b;
}

.cs-markdown input[type="checkbox"] {
    accent-color: var(--cs-md-accent);
    height: 0.95rem;
    margin: 0 0.4rem 0 0;
    vertical-align: -0.08rem;
    width: 0.95rem;
}

.cs-markdown blockquote {
    background: var(--cs-md-surface-soft);
    border-left: 3px solid var(--cs-md-border-strong);
    border-radius: 0 8px 8px 0;
    color: var(--cs-md-muted);
    margin: 1rem 0;
    padding: 0.75rem 0.95rem;
}

.cs-markdown blockquote p:last-child {
    margin-bottom: 0;
}

/* GitHub/AI alert syntax: > [!NOTE], > [!TIP], etc. */
.cs-markdown blockquote.cs-md-callout {
    border-left-color: var(--cs-md-accent);
    color: #334155;
    font-style: normal;
    padding: 0.8rem 1rem;
}

.cs-markdown blockquote.cs-md-callout-note,
.cs-markdown blockquote.cs-md-callout-info {
    background: #eff6ff;
    border-left-color: #3b82f6;
}

.cs-markdown blockquote.cs-md-callout-tip,
.cs-markdown blockquote.cs-md-callout-success {
    background: #ecfdf5;
    border-left-color: var(--cs-md-success);
}

.cs-markdown blockquote.cs-md-callout-warning,
.cs-markdown blockquote.cs-md-callout-caution {
    background: #fffbeb;
    border-left-color: var(--cs-md-warning);
}

.cs-markdown blockquote.cs-md-callout-important,
.cs-markdown blockquote.cs-md-callout-danger {
    background: #fef2f2;
    border-left-color: var(--cs-md-danger);
}

.cs-md-callout-label {
    align-items: center;
    color: #475569;
    display: flex;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    margin: 0 0 0.25rem;
    text-transform: uppercase;
}

.cs-md-callout-label::before {
    background: currentColor;
    border-radius: 999px;
    content: "";
    display: inline-block;
    height: 0.42rem;
    margin-right: 0.45rem;
    width: 0.42rem;
}

.cs-markdown hr {
    border: 0;
    border-top: 1px solid var(--cs-md-border);
    margin: 1.35rem 0;
}

.cs-markdown img {
    border: 1px solid var(--cs-md-border);
    border-radius: 8px;
    display: block;
    height: auto;
    margin: 0.85rem 0;
    max-width: 100%;
}

.cs-markdown code:not(pre code) {
    background: #eef2f7;
    border: 1px solid #e2e8f0;
    border-radius: 5px;
    color: #b4235a;
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 0.86em;
    padding: 0.13rem 0.34rem;
}

.cs-markdown .cs-code-frame,
.cs-markdown .code-block-container {
    background: var(--cs-md-code);
    border: 1px solid #1e293b;
    border-radius: var(--cs-md-radius);
    box-shadow: 0 5px 16px rgba(15, 23, 42, 0.08);
    margin: 1rem 0 1.15rem;
    overflow: hidden;
}

.cs-code-toolbar,
.cs-markdown .code-block-banner,
.cs-markdown .code-block-banner-wrap {
    align-items: center;
    background: #172238;
    color: #cbd5e1;
    display: flex;
    justify-content: space-between;
    min-height: 2.25rem;
}

.cs-code-toolbar {
    font-family: Inter, system-ui, sans-serif;
    font-size: 0.72rem;
    padding: 0.35rem 0.65rem 0.35rem 0.8rem;
}

.cs-code-language,
.cs-markdown .code-block-infostring {
    color: #cbd5e1;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.cs-code-copy,
.cs-markdown .code-copy-button {
    background: transparent;
    border: 1px solid rgba(203, 213, 225, 0.28);
    border-radius: 5px;
    color: #cbd5e1;
    cursor: pointer;
    font-size: 0.72rem;
    line-height: 1.3;
    padding: 0.2rem 0.48rem;
    transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.cs-code-copy:hover,
.cs-markdown .code-copy-button:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(203, 213, 225, 0.6);
    color: #fff;
}

.cs-markdown pre,
.cs-markdown .code-block {
    background: var(--cs-md-code);
    border: 0;
    border-radius: 0;
    color: var(--cs-md-code-ink);
    margin: 0;
    max-width: 100%;
    overflow-x: auto;
    padding: 1rem 1.05rem;
    white-space: pre;
}

.cs-markdown pre code,
.cs-markdown .code-block code {
    background: transparent;
    border: 0;
    color: inherit;
    display: block;
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 0.84rem;
    line-height: 1.65;
    padding: 0;
    white-space: inherit;
}

.cs-markdown .code-block-banner-wrap {
    padding: 0;
}

.cs-markdown .code-block-banner {
    flex: 1;
    padding: 0.35rem 0.65rem 0.35rem 0.8rem;
}

.cs-markdown .code-block-action {
    align-items: center;
    display: flex;
}

.cs-markdown .cs-table-wrap {
    border: 1px solid var(--cs-md-border);
    border-radius: var(--cs-md-radius);
    margin: 1rem 0 1.15rem;
    overflow-x: auto;
}

.cs-markdown table {
    border-collapse: collapse;
    border-spacing: 0;
    margin: 0;
    min-width: 100%;
    width: max-content;
}

.cs-markdown th,
.cs-markdown td {
    border-bottom: 1px solid var(--cs-md-border);
    padding: 0.62rem 0.78rem;
    text-align: left;
    vertical-align: top;
}

.cs-markdown th {
    background: var(--cs-md-surface-soft);
    color: #334155;
    font-size: 0.82rem;
    font-weight: 700;
    white-space: nowrap;
}

.cs-markdown tr:last-child td {
    border-bottom: 0;
}

.cs-markdown tr:nth-child(even) td {
    background: rgba(248, 250, 252, 0.55);
}

.cs-markdown details.cs-md-details {
    background: var(--cs-md-surface-soft);
    border: 1px solid var(--cs-md-border);
    border-radius: var(--cs-md-radius);
    margin: 1rem 0;
    padding: 0.7rem 0.9rem;
}

.cs-markdown details.cs-md-details > summary {
    color: #334155;
    cursor: pointer;
    font-weight: 700;
    list-style-position: inside;
}

.cs-markdown details.cs-md-details[open] > summary {
    border-bottom: 1px solid var(--cs-md-border);
    margin-bottom: 0.75rem;
    padding-bottom: 0.6rem;
}

/* Keep compact chat surfaces readable without turning every message into a card. */
.chat-bubble.cs-markdown,
.hint-bubble .cs-markdown {
    font-size: 0.95rem;
    line-height: 1.7;
}

.chat-bubble.cs-markdown > :last-child,
.hint-bubble .cs-markdown > :last-child {
    margin-bottom: 0;
}

.chat-bubble.cs-markdown h1,
.chat-bubble.cs-markdown h2,
.hint-bubble .cs-markdown h1,
.hint-bubble .cs-markdown h2 {
    font-size: 1rem;
    margin-top: 0.9rem;
}

.chat-bubble.cs-markdown h2,
.hint-bubble .cs-markdown h2 {
    padding-bottom: 0.25rem;
    padding-top: 0.25rem;
}

.chat-bubble.cs-markdown .cs-code-frame,
.hint-bubble .cs-markdown .cs-code-frame {
    margin: 0.7rem 0;
}

@media (max-width: 576px) {
    .cs-markdown {
        font-size: 0.93rem;
    }

    .cs-markdown h1 {
        font-size: 1.35rem;
    }

    .cs-markdown h2 {
        font-size: 1.08rem;
    }

    .cs-markdown pre code,
    .cs-markdown .code-block code {
        font-size: 0.78rem;
    }
}