/* ============================================================
   MARKDOWN CONTENT — Unified Premium AI Text Rendering
   ============================================================
   Applied to: Chat General, Audio Assistant, Flashcard Tutor, Notes Viewer.
   Single source of truth for all AI-generated Markdown content.
   ============================================================ */

/* ─── BASE CONTAINER ─────────────────────────────────── */
.markdown-content {
    font-family: var(--font-main, 'Inter', system-ui, sans-serif);
    font-size: 0.93rem;
    line-height: 1.7;
    color: inherit;
    word-break: break-word;
    overflow-wrap: break-word;

    /* ✅ CRITICAL: Let the HTML tags handle spacing, not raw whitespace */
    white-space: normal;
}

/* ─── PARAGRAPHS ─────────────────────────────────────── */
.markdown-content p {
    margin: 0 0 0.6em 0;
    line-height: 1.7;
}

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

/* ─── HEADINGS ───────────────────────────────────────── */
.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4 {
    font-family: var(--font-main, 'Inter', system-ui, sans-serif);
    letter-spacing: -0.02em;
    line-height: 1.3;
    margin-top: 1.1em;
    margin-bottom: 0.4em;
}

.markdown-content h1:first-child,
.markdown-content h2:first-child,
.markdown-content h3:first-child,
.markdown-content h4:first-child {
    margin-top: 0;
}

.markdown-content h1 {
    font-size: 1.15rem;
    font-weight: 800;
    color: #93c5fd; /* Blue 300 */
    padding-bottom: 0.35em;
    border-bottom: 1px solid rgba(99, 102, 241, 0.2);
}

.markdown-content h2 {
    font-size: 1.05rem;
    font-weight: 700;
    color: #93c5fd; /* Blue 300 */
    padding-bottom: 0.3em;
    border-bottom: 1px solid rgba(99, 102, 241, 0.15);
}

.markdown-content h3 {
    font-size: 0.97rem;
    font-weight: 700;
    color: #a5b4fc; /* Indigo 300 */
}

.markdown-content h4 {
    font-size: 0.93rem;
    font-weight: 600;
    color: #c7d2fe; /* Indigo 200 */
}

/* ─── BOLD & ITALIC (Key Terms Accent) ───────────────── */
.markdown-content strong {
    font-weight: 700;
    color: #60a5fa; /* Blue 400 — Premium accent for keywords */
}

.markdown-content em {
    font-style: italic;
    color: #cbd5e1; /* Slate 300 */
}

/* ─── LISTS ──────────────────────────────────────────── */
.markdown-content ul,
.markdown-content ol {
    margin: 0.4em 0 0.7em;
    padding-left: 1.4em;
}

.markdown-content li {
    margin-bottom: 0.25em;
    line-height: 1.65;
}

.markdown-content li:last-child {
    margin-bottom: 0;
}

.markdown-content li > p {
    margin: 0;
}

/* Marker accent */
.markdown-content ul li::marker {
    color: #60a5fa; /* Blue 400 */
}

.markdown-content ol li::marker {
    color: #60a5fa;
    font-weight: 600;
}

/* Nested lists: tighter spacing */
.markdown-content li > ul,
.markdown-content li > ol {
    margin-top: 0.2em;
    margin-bottom: 0.2em;
}

/* ─── BLOCKQUOTES ────────────────────────────────────── */
.markdown-content blockquote {
    border-left: 3px solid #6366f1; /* Indigo 500 */
    padding: 0.5em 0.85em;
    margin: 0.6em 0;
    background: rgba(99, 102, 241, 0.06);
    border-radius: 0 8px 8px 0;
    font-style: italic;
    color: #cbd5e1;
}

.markdown-content blockquote p {
    margin: 0;
}

/* ─── INLINE CODE ────────────────────────────────────── */
.markdown-content code {
    background: rgba(0, 0, 0, 0.35);
    padding: 0.15em 0.4em;
    border-radius: 5px;
    font-family: var(--font-mono, 'JetBrains Mono', 'Fira Code', 'Consolas', monospace);
    font-size: 0.85em;
    color: #e2e8f0;
    border: 1px solid rgba(255, 255, 255, 0.06);
}

/* ─── CODE BLOCKS ────────────────────────────────────── */
.markdown-content pre {
    background: #020617; /* Slate 950 */
    padding: 1em 1.2em;
    border-radius: 10px;
    overflow-x: auto;
    margin: 0.75em 0;
    border: 1px solid rgba(255, 255, 255, 0.08);
    position: relative;
}

.markdown-content pre code {
    background: transparent;
    padding: 0;
    border: none;
    font-size: 0.88em;
    line-height: 1.6;
    color: #e2e8f0;
    white-space: pre;
}

.markdown-content pre::-webkit-scrollbar {
    height: 6px;
}

.markdown-content pre::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
}

/* ─── HORIZONTAL RULES ───────────────────────────────── */
.markdown-content hr {
    border: none;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    margin: 0.8em 0;
}

/* ─── LINKS ──────────────────────────────────────────── */
.markdown-content a {
    color: #60a5fa;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.15s;
}

.markdown-content a:hover {
    color: #93c5fd;
}

/* ─── TABLES ─────────────────────────────────────────── */
.markdown-content .table-wrapper {
    width: 100%;
    overflow-x: auto;
    margin: 0.8em 0;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.markdown-content table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88em;
}

.markdown-content th {
    background: rgba(59, 130, 246, 0.1);
    color: #93c5fd;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.75em;
    letter-spacing: 0.04em;
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.markdown-content td {
    padding: 8px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.markdown-content tr:last-child td {
    border-bottom: none;
}

.markdown-content tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* ─── IMAGES (Visual Resources from GCS) ────────────── */
.markdown-content img {
    max-width: 100%;
    max-height: 300px;
    object-fit: contain;
    border-radius: 10px;
    margin: 0.8em auto;
    display: block;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    cursor: zoom-in;
}

.markdown-content img:hover {
    transform: scale(1.02);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.2);
}

/* ─── COMPACT VARIANT (for smaller panels like audio/tutor) ── */
.markdown-content.markdown-compact {
    font-size: 0.85rem;
    line-height: 1.55;
}

.markdown-content.markdown-compact p {
    margin-bottom: 0.45em;
}

.markdown-content.markdown-compact h2 {
    font-size: 0.95rem;
    margin-top: 0.8em;
}

.markdown-content.markdown-compact h3 {
    font-size: 0.88rem;
    margin-top: 0.6em;
}

.markdown-content.markdown-compact ul,
.markdown-content.markdown-compact ol {
    margin: 0.3em 0 0.5em;
}

.markdown-content.markdown-compact li {
    margin-bottom: 0.15em;
    font-size: 0.84rem;
}