*{box-sizing:border-box}
:root{--ink:#1d2330;--muted:#5b6475;--line:#d9dee7;--bg:#f7f8fb;--accent:#0b5cad;--accent2:#e8f1fb;--ok:#17703b}
body{margin:0;font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:#fff}
.top{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.8rem 1.2rem;border-bottom:1px solid var(--line);flex-wrap:wrap}
.brand{font-weight:700;color:var(--ink);text-decoration:none}
.top nav a{margin-left:1rem;color:var(--muted);text-decoration:none;font-size:.95rem}
main{max-width:46rem;margin:0 auto;padding:1.5rem 1.2rem 3rem}
h1{font-size:2rem;line-height:1.2;margin:.5rem 0 .6rem}
h2{font-size:1.4rem;margin:2rem 0 .5rem}.h3{font-size:1.05rem;margin:1.4rem 0 .4rem}
h3{font-size:1.06rem;margin:1.2rem 0 .2rem}
.lead{font-size:1.1rem;color:var(--muted)}
a{color:var(--accent)}
.drop{display:flex;flex-direction:column;align-items:center;gap:.3rem;padding:2.2rem 1rem;border:2px dashed #9fb3cc;border-radius:12px;background:var(--bg);cursor:pointer;text-align:center}
.drop.over{border-color:var(--accent);background:var(--accent2)}
.drop strong{font-size:1.15rem;color:var(--accent)}.drop span{color:var(--muted);font-size:.95rem}
.drop input{margin-top:.6rem;max-width:100%}
#status{min-height:1.4em;color:var(--muted)}
.summary{font-weight:600}
.actions{display:flex;flex-wrap:wrap;gap:.5rem}
button{font:inherit;font-size:.95rem;padding:.55rem .9rem;border-radius:8px;border:1px solid var(--accent);background:var(--accent);color:#fff;cursor:pointer}
button.locked{background:#fff;color:var(--accent)}
button.locked::before{content:"\1F512  "}
.text{border:1px solid var(--line);border-radius:10px;padding:1rem;max-height:28rem;overflow:auto;background:#fff}
.text p{margin:0 0 .5rem}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:.6rem}
.gallery img{width:100%;height:auto;border:1px solid var(--line);border-radius:6px;background:var(--bg)}
.pro{margin-top:2rem;padding:1.2rem;border-radius:12px;background:var(--accent2)}
.pro h2{margin-top:0}
.buy{display:inline-block;padding:.7rem 1.1rem;border-radius:8px;background:var(--accent);color:#fff;text-decoration:none;font-weight:600}
.key input{font:inherit;font-size:.95rem;padding:.5rem;border:1px solid var(--line);border-radius:8px;max-width:14rem}
.ok{color:var(--ok);font-weight:600}.muted{color:var(--muted);font-size:.95rem}
table{border-collapse:collapse;width:100%;margin:.5rem 0 1rem}td,th{border:1px solid var(--line);padding:.45rem .6rem;text-align:left;font-size:.95rem}th{background:var(--bg)}
footer{border-top:1px solid var(--line);padding:1.2rem;text-align:center;color:var(--muted);font-size:.85rem}
footer a{color:var(--muted)}
@media (max-width:520px){h1{font-size:1.75rem}.top nav a{margin:0 1rem 0 0}}
.thumb img{width:220px;max-width:60%;height:auto;border:1px solid var(--line);border-radius:4px;box-shadow:0 2px 8px rgba(0,0,0,.12);background:#fff}
.small{font-size:.85rem}

.paper{display:inline-flex;align-items:center;gap:.4em;font-size:.95em;margin-right:.5em}
.paper select{font:inherit;padding:.3em}