.themes-page[data-astro-cid-yz7svqin]{display:grid;gap:1.5rem;padding:1rem}.themes-hero[data-astro-cid-yz7svqin]{display:flex;flex-direction:column;align-items:center;gap:.85rem;width:100%;max-width:44rem;margin-inline:auto;padding-block:1rem .5rem;text-align:center}.themes-hero[data-astro-cid-yz7svqin] h1[data-astro-cid-yz7svqin]{margin:0;color:var(--text-primary);font-family:var(--font-display);font-size:var(--text-fluid-xl);line-height:var(--leading-snug);letter-spacing:var(--tracking-tight)}.themes-hero-heading[data-astro-cid-yz7svqin]{display:flex;flex-direction:column;align-items:flex-start;text-align:left}.themes-hero-sub[data-astro-cid-yz7svqin]{margin:0;max-width:56ch;color:var(--muted);font-size:var(--text-base);line-height:var(--leading-relaxed)}.difficulty-filter[data-astro-cid-yz7svqin]{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.5rem}.difficulty-filter-item[data-astro-cid-yz7svqin]{display:inline-flex;align-items:center;justify-content:center;padding:.45rem 1rem;border:1px solid var(--line);border-radius:999px;background:#fff9;color:var(--ink);font-size:var(--text-base);font-weight:800;text-decoration:none;transition:background .18s ease,border-color .18s ease,color .18s ease}.difficulty-filter-item[data-astro-cid-yz7svqin]:hover{border-color:var(--text-primary)}.difficulty-filter-item[data-astro-cid-yz7svqin].is-active{border-color:transparent;background:var(--text-primary);color:var(--text-inverse)}.theme-group[data-astro-cid-yz7svqin]{display:grid;gap:1rem}.theme-group-head[data-astro-cid-yz7svqin]{display:flex;align-items:center;justify-content:space-between;gap:1rem}.theme-group-title[data-astro-cid-yz7svqin]{display:flex;align-items:center;gap:.75rem;margin:0;font-family:var(--font-display);font-size:var(--text-lg)}.theme-group-count[data-astro-cid-yz7svqin]{color:var(--muted);font-family:var(--font-body);font-size:var(--text-base);font-weight:var(--weight-extrabold)}.difficulty-badge[data-astro-cid-yz7svqin]{display:inline-flex;align-items:center;justify-content:center;height:1.75rem;padding:0 .8rem;border-radius:999px;color:var(--text-inverse);font-size:var(--text-base);font-weight:400;line-height:1;letter-spacing:.02em;white-space:nowrap}.theme-grid[data-astro-cid-yz7svqin]{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1rem}.empty-state[data-astro-cid-yz7svqin]{padding:2rem 1.25rem;border-radius:var(--radius-xl);text-align:center}.empty-state-title[data-astro-cid-yz7svqin]{margin:0 0 .4rem;font-family:var(--font-display);font-size:var(--text-lg)}.empty-state-desc[data-astro-cid-yz7svqin]{margin:0;color:var(--muted)}.l1-catalog[data-astro-cid-yz7svqin]{display:grid;gap:1.25rem}.l1-catalog-count[data-astro-cid-yz7svqin]{margin:0;color:var(--brand-primary-hover);font-size:var(--text-md);font-weight:var(--weight-bold)}.l1-grid[data-astro-cid-yz7svqin]{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1rem}.l1-status[data-astro-cid-yz7svqin]{grid-column:1 / -1;padding:2.5rem 1rem;color:var(--muted);font-size:var(--text-base);line-height:var(--leading-relaxed);text-align:center}.l1-status[data-astro-cid-yz7svqin] h2[data-astro-cid-yz7svqin]{margin:0 0 .4rem;color:var(--ink);font-family:var(--font-display);font-size:var(--text-lg)}.l1-status[data-astro-cid-yz7svqin] p[data-astro-cid-yz7svqin]{margin:0 0 1rem}.l1-status[data-astro-cid-yz7svqin].is-error{border:1px solid var(--line);border-radius:var(--radius-xl);background:var(--surface-strong)}.topic-card[data-astro-cid-yz7svqin]{--topic-card-text: #ffffff;--topic-card-text-dim: rgba(255, 255, 255, .8);--topic-card-text-shadow: 0 1px 2px rgba(0, 0, 0, .9), 0 0 8px rgba(0, 0, 0, .55);--topic-card-title-shadow: 0 1px 3px rgba(0, 0, 0, .95), 0 0 2px rgba(0, 0, 0, .9), 0 0 14px rgba(0, 0, 0, .6);--topic-card-radius: calc(var(--radius-xl) * .8);position:relative;display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--line);border-radius:var(--topic-card-radius);background:var(--surface);box-shadow:var(--shadow-sm);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}.topic-card[data-astro-cid-yz7svqin].soft-card{padding:0;background:var(--surface)}.topic-card[data-astro-cid-yz7svqin]:hover,.topic-card[data-astro-cid-yz7svqin]:focus-visible{border-color:var(--brand-primary);box-shadow:0 10px 24px #00000014;transform:translateY(-3px)}.topic-card[data-astro-cid-yz7svqin]:focus-visible{outline:none;box-shadow:0 0 0 3px var(--brand-primary-soft),0 10px 24px #00000014}.topic-card-media[data-astro-cid-yz7svqin]{position:relative;z-index:1;aspect-ratio:4 / 3;overflow:hidden;border:12px solid var(--surface);border-radius:var(--topic-card-radius) var(--topic-card-radius) 0 0;background-color:var(--surface-strong)}.topic-card-media[data-astro-cid-yz7svqin] img[data-astro-cid-yz7svqin],.topic-card-media-bg[data-astro-cid-yz7svqin]{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.topic-card-media-bg[data-astro-cid-yz7svqin]{background-image:url(/assets/images/topic-card-bg.webp);background-position:center;background-repeat:no-repeat;background-size:cover}[data-astro-cid-yz7svqin][data-theme=dark] .topic-card-media-bg[data-astro-cid-yz7svqin]{background-color:#00000073;background-blend-mode:multiply}.topic-card-media[data-astro-cid-yz7svqin]:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,#00000040,#0000000d,#00000059);pointer-events:none}.topic-card-name[data-astro-cid-yz7svqin]{position:absolute;top:50%;left:0;right:0;z-index:2;margin:0;padding-inline:1rem;transform:translateY(-50%);color:var(--topic-card-text);font-family:var(--font-display);font-size:var(--text-3xl);font-weight:var(--weight-extrabold);line-height:var(--leading-snug);text-align:center;text-shadow:var(--topic-card-title-shadow)}.topic-card-count[data-astro-cid-yz7svqin]{position:absolute;right:.75rem;bottom:.75rem;z-index:2;padding:.25rem .55rem;border-radius:999px;background:#ffffff80;color:var(--ink);font-size:var(--text-sm);line-height:1;backdrop-filter:blur(4px)}.topic-card-body[data-astro-cid-yz7svqin]{position:relative;z-index:1;display:flex;flex-direction:column;gap:.75rem;flex:1 1 auto;padding:0rem 1.25rem 1.15rem}.topic-card-desc[data-astro-cid-yz7svqin]{display:-webkit-box;margin:0;color:var(--ink);font-size:var(--text-base);line-height:var(--leading-relaxed);-webkit-line-clamp:3;line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.topic-card-chips[data-astro-cid-yz7svqin]{display:flex;flex-wrap:wrap;gap:.5rem;margin:0;padding:0;list-style:none}.topic-card-chips[data-astro-cid-yz7svqin]:empty{display:none}.topic-card-chip[data-astro-cid-yz7svqin]{max-width:100%;overflow:hidden;color:var(--muted);font-size:var(--text-xs);font-weight:var(--weight-medium);text-overflow:ellipsis;white-space:nowrap}.topic-card-chip[data-astro-cid-yz7svqin].is-more{color:var(--text-secondary)}.topic-card-cta[data-astro-cid-yz7svqin]{display:inline-flex;align-items:center;gap:.2rem;align-self:center;margin-top:auto;color:var(--brand-primary);font-size:var(--text-base);font-weight:var(--weight-bold)}.topic-card-cta[data-astro-cid-yz7svqin]:after{content:"→";transition:transform .18s ease}.topic-card[data-astro-cid-yz7svqin]:hover .topic-card-cta[data-astro-cid-yz7svqin]:after,.topic-card[data-astro-cid-yz7svqin]:focus-visible .topic-card-cta[data-astro-cid-yz7svqin]:after{transform:translate(3px)}@media (prefers-reduced-motion: reduce){.topic-card[data-astro-cid-yz7svqin],.topic-card-cta[data-astro-cid-yz7svqin]:after{transition:none}.topic-card[data-astro-cid-yz7svqin]:hover,.topic-card[data-astro-cid-yz7svqin]:focus-visible{transform:none}}.btn[data-astro-cid-yz7svqin]{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;border:none;border-radius:999px;padding:.7rem 1.5rem;font:inherit;font-weight:var(--weight-bold);line-height:1;cursor:pointer;text-decoration:none;transition:background .18s ease,color .18s ease,border-color .18s ease}.btn-primary[data-astro-cid-yz7svqin]{background:var(--btn-primary-bg);color:var(--btn-primary-text)}.btn-primary[data-astro-cid-yz7svqin]:hover{background:var(--btn-primary-hover);color:var(--btn-primary-text)}