/* =========================================================================
   Puzzle content section — the editorial "About [Puzzle]" block rendered
   below the interactive game on each puzzle page. "Crossword Paper" re-skin:
   palette + type come from the global tokens.css, adapting to light/dark.
   ========================================================================= */

.puzzle-content {
    max-width: 760px;
    margin: 2.5rem auto 3rem;
    padding: 2rem 1.5rem;
    font-size: 1.02rem;
    line-height: 1.7;
    color: var(--text);
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 10px;
}

.puzzle-content__title {
    margin: 0 0 0.4rem;
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text);
}

.puzzle-content__subtitle {
    display: block;
    margin-top: 0.2rem;
    font-size: 0.85rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
}

.puzzle-content__intro {
    margin: 1rem 0 1.5rem;
    font-size: 1.08rem;
    color: var(--text-muted);
}

.puzzle-content__intro p,
.puzzle-content__body p {
    margin: 0 0 0.9rem;
}

.puzzle-content__heading {
    margin: 2rem 0 0.75rem;
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    padding-bottom: 0.35rem;
    border-bottom: 2px solid var(--line);
    color: var(--text);
}

.puzzle-content__subheading {
    margin: 1.4rem 0 0.5rem;
    font-size: 1.08rem;
    font-weight: 600;
    color: var(--text);
}

.puzzle-content__body ul,
.puzzle-content__body ol {
    margin: 0 0 0.9rem;
    padding-left: 1.4rem;
}

.puzzle-content__body li {
    margin-bottom: 0.4rem;
    color: var(--text-muted);
}

.puzzle-content__body strong {
    color: var(--text);
}

.puzzle-content kbd {
    display: inline-block;
    padding: 0.1rem 0.4rem;
    font-size: 0.85em;
    font-family: var(--font-mono);
    background: var(--bg-1);
    border: 1px solid var(--line);
    border-bottom-width: 2px;
    border-radius: 4px;
    color: var(--text);
}

/* FAQ — collapsible <details> items. */
.puzzle-content__faq {
    margin-top: 0.5rem;
}

.puzzle-content__faq-item {
    margin-bottom: 0.6rem;
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
    background: var(--bg-1);
}

.puzzle-content__faq-item summary {
    padding: 0.8rem 1rem;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    list-style: none;
}

.puzzle-content__faq-item summary::-webkit-details-marker {
    display: none;
}

.puzzle-content__faq-item summary::before {
    content: "+";
    display: inline-block;
    width: 1.1em;
    margin-right: 0.3rem;
    font-weight: 700;
    color: var(--accent);
    transition: transform 0.15s ease;
}

.puzzle-content__faq-item[open] summary::before {
    content: "\2212"; /* minus sign */
}

.puzzle-content__faq-answer {
    padding: 0 1rem 0.9rem;
    color: var(--text-muted);
}

.puzzle-content__related {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--line);
}

.puzzle-content__related-title {
    margin: 0 0 0.75rem;
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text);
}

.puzzle-content__related-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.75rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.puzzle-content__related-link {
    display: block;
    padding: 0.75rem 1rem;
    border: 1px solid var(--line);
    border-radius: 8px;
    text-decoration: none;
    color: inherit;
    background: var(--bg-1);
    transition: border-color 0.15s ease, transform 0.15s ease;
}

.puzzle-content__related-link:hover {
    border-color: var(--accent);
    transform: translateY(-1px);
}

@media (max-width: 600px) {
    .puzzle-content {
        padding: 1.5rem 1rem;
        margin: 1.5rem 0.5rem 2rem;
    }
    .puzzle-content__title {
        font-size: 1.35rem;
    }
}