:root{color-scheme:light dark;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5;--bg: #faf8f5;--text: #2b2620;--muted: #7a7268;--accent: #8a5a2b;--border: #e7e0d6;--card: #ffffff;--thumb: #f2ece3;--stock: #3f7d52;--error: #b0453b}@media (prefers-color-scheme: dark){:root{--bg: #17130f;--text: #ece5db;--muted: #a89e90;--accent: #cf8f52;--border: #37302a;--card: #221c17;--thumb: #2c241d;--stock: #7bbf8f;--error: #e08a80}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}.app{max-width:1000px;margin:0 auto;padding:1.5rem 1rem 3rem}.app__header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:1.25rem}.app__header h1{margin:0;font-size:1.6rem}.app__search{flex:1 1 240px;max-width:320px;padding:.55rem .75rem;border:1px solid var(--border);border-radius:8px;font-size:1rem;background:var(--card);color:var(--text)}.app__search::placeholder{color:var(--muted)}.filter{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.5rem}.filter__item{padding:.4rem .9rem;border:1px solid var(--border);border-radius:999px;background:var(--card);color:var(--text);cursor:pointer;font-size:.9rem}.filter__item--active{background:var(--accent);border-color:var(--accent);color:#fff}.filter__item:disabled{opacity:.6;cursor:default}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1.25rem}.card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:.75rem;color:inherit;text-decoration:none;transition:border-color .15s ease,transform .15s ease}.card:hover{border-color:var(--accent);transform:translateY(-2px)}.app__brand{color:inherit;text-decoration:none}.card__thumb{aspect-ratio:3 / 2;display:flex;align-items:center;justify-content:center;overflow:hidden;border-radius:8px;background:var(--thumb);margin-bottom:.6rem}.card__thumb img{width:100%;height:100%;object-fit:cover}.card__placeholder{font-size:2rem}.card__name{margin:0 0 .25rem;font-size:1rem}.card__category{margin:0;color:var(--muted);font-size:.85rem}.card__price{margin:.4rem 0 .3rem;font-weight:600}.card__stock{font-size:.8rem;color:var(--stock)}.card__stock--out{color:var(--error)}.detail__back{display:inline-block;margin-bottom:1.25rem;color:var(--accent);text-decoration:none}.detail__back:hover{text-decoration:underline}.detail__body{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1.75rem;align-items:start}.detail__media{aspect-ratio:3 / 2;display:flex;align-items:center;justify-content:center;overflow:hidden;border-radius:12px;background:var(--thumb)}.detail__media img{width:100%;height:100%;object-fit:cover}.detail__placeholder{font-size:3rem}.detail__category{margin:0;color:var(--muted);font-size:.9rem}.detail__name{margin:.25rem 0 .5rem;font-size:1.6rem}.detail__price{margin:0 0 1rem;font-size:1.3rem;font-weight:700}.detail__desc{margin:0 0 1rem}.detail__stock{margin:0 0 1.25rem;color:var(--stock);font-weight:600}.detail__stock--out{color:var(--error)}.detail__cta{display:inline-block;padding:.6rem 1.1rem;background:var(--accent);color:#fff;border-radius:8px;text-decoration:none;font-weight:600}.detail__cta:hover{opacity:.9}@media (max-width: 640px){.detail__body{grid-template-columns:1fr}}.notice{padding:.75rem 0;color:var(--muted)}.notice--error{color:var(--error)}.app__note{margin-top:2.5rem;padding-top:1.25rem;border-top:1px solid var(--border);color:var(--muted);font-size:.9rem}.app__note p{margin:0 0 .5rem}.app__note code{background:#8a5a2b26;padding:.05rem .35rem;border-radius:4px}