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p{font-size:.8rem;color:var(--muted);line-height:1.55;margin:0 0 .8rem}.note-card-chips{display:flex;gap:.35rem;flex-wrap:wrap}.chip{font-family:IBM Plex Mono,monospace;font-size:.6rem;letter-spacing:.04em;padding:.12rem .4rem;border-radius:3px;background:var(--accent-soft);color:var(--accent)}.sandbox-card{background:#fdfcf8;border:1px solid var(--line);border-radius:6px;padding:1.5rem 1.5rem 1.3rem;text-decoration:none;color:var(--ink);display:block;transition:box-shadow .18s,transform .18s,border-color .18s;position:relative;overflow:hidden;grid-column:1 / -1;border-left:3px solid #6b21a8}.sandbox-card:before{content:"";position:absolute;top:-60px;right:-60px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(107,33,168,.05) 0%,transparent 70%);pointer-events:none}.sandbox-card:hover{box-shadow:0 4px 18px #00000017;transform:translateY(-2px);border-color:#6b21a8}.sandbox-card .note-card-num{color:#6b21a8}.sandbox-card h3{font-family:Lora,serif;font-size:1.05rem;font-weight:600;color:var(--ink);text-transform:none;letter-spacing:0;margin:0 0 .35rem}.sandbox-card p{font-size:.8rem;color:var(--muted);margin:0 0 .9rem}.sandbox-arrow{font-family:IBM Plex Mono,monospace;font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:#6b21a8;display:inline-flex;align-items:center;gap:.4rem;border:1px solid rgba(107,33,168,.3);padding:.25rem .7rem;border-radius:var(--border-r);background:#fff;transition:all .15s}.sandbox-card:hover .sandbox-arrow{background:#6b21a8;color:#fff;border-color:#6b21a8}.concepts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:.45rem;margin-bottom:.5rem}.concept-item{background:#fdfcf8;border:1px solid var(--line);border-radius:5px;padding:.55rem .8rem;text-decoration:none;color:var(--ink);display:block;transition:border-color .15s,background .15s}.concept-item:hover{border-color:var(--accent);background:var(--accent-soft)}.concept-item strong{display:block;font-family:IBM Plex Mono,monospace;font-size:.75rem;font-weight:600;color:var(--accent);margin-bottom:.1rem}.concept-item span{font-family:IBM Plex Mono,monospace;font-size:.65rem;color:var(--muted)}.how-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem;margin-bottom:1.2rem}.how-step{display:flex;gap:.8rem;align-items:flex-start}.how-num{width:26px;height:26px;background:var(--accent);color:#fff;border-radius:50%;font-family:IBM Plex Mono,monospace;font-size:.75rem;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:.1rem}.how-step p{font-size:.84rem;color:var(--ink2);line-height:1.55;margin:0}.home-footer{background:#f0ece0;border-top:1px solid var(--line);padding:2rem 3rem}.footer-inner{max-width:900px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:2rem}.footer-label{display:block;font-family:IBM Plex Mono,monospace;font-size:.6rem;letter-spacing:.15em;text-transform:uppercase;color:var(--red);margin-bottom:.5rem}.footer-attribution,.footer-qjs{font-size:.85rem;color:var(--ink2);line-height:1.7}.footer-attribution strong,.footer-qjs strong{color:var(--ink);font-weight:600}.footer-qjs a{color:var(--accent);text-decoration:none}.footer-qjs a:hover{text-decoration:underline}@media(max-width:768px){.home-main{margin-left:0}.home-page:before{display:none}.cover,.home-section{padding-left:1.5rem;padding-right:1.5rem}.cover-atom{display:none}}@media(max-width:700px){.footer-inner{grid-template-columns:1fr}.home-footer{padding:1.5rem}}@media(max-width:480px){.cards-grid{grid-template-columns:1fr}.concepts-grid{grid-template-columns:1fr 1fr}}