:root{--bg:#0b0d12;--card:#141826;--text:#e7e9ee;--muted:#9aa3b2;--acc:#6ee7ff;--danger:#ff6b6b;--ok:#4ade80;--border:#262b3a}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:linear-gradient(180deg,#0b0d12 0%,#0f1424 100%);color:var(--text)}
a{color:var(--acc);text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:980px;margin:0 auto;padding:24px}
header{margin-bottom:16px}
h1{margin:0 0 6px 0;font-size:28px}
.sub{margin:0;color:var(--muted)}
.card{background:rgba(20,24,38,.88);border:1px solid var(--border);border-radius:16px;padding:16px;margin:14px 0;backdrop-filter:blur(8px)}
label{display:block;font-size:13px;color:var(--muted);margin-bottom:10px}
textarea,input,select{width:100%;margin-top:6px;background:#0b0f1c;color:var(--text);border:1px solid var(--border);border-radius:12px;padding:10px;font-size:14px;outline:none}
textarea:focus,input:focus,select:focus{border-color:rgba(110,231,255,.55);box-shadow:0 0 0 3px rgba(110,231,255,.12)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media (max-width:820px){.grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.grid{grid-template-columns:1fr}}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}
button,.secondary{border-radius:12px;border:1px solid var(--border);padding:10px 14px;font-size:14px}
button{background:var(--acc);color:#041018;border-color:transparent;font-weight:600;cursor:pointer}
button:disabled{opacity:.55;cursor:not-allowed}
.secondary{display:inline-flex;align-items:center;justify-content:center;background:#0b0f1c;color:var(--text)}
.secondary[aria-disabled="true"]{opacity:.55;pointer-events:none}
.hint{margin:10px 0 0 0;color:var(--muted);font-size:13px}
.preview{display:flex;flex-direction:column;gap:12px}
.status{font-size:13px;color:var(--muted)}
.status[data-kind="loading"]{color:var(--acc)}
.status[data-kind="ok"]{color:var(--ok)}
.status[data-kind="err"]{color:var(--danger)}
img{width:100%;max-height:720px;object-fit:contain;border-radius:12px;border:1px solid var(--border);background:#0b0f1c}
footer{margin-top:8px;color:var(--muted);font-size:13px}