:root{--bg:#0b1220;--surface:#0f172a;--card:#111827;--txt:#e5e7eb;--mut:#9ca3af;--acc:#0ea5e9;--ok:#10b981;--danger:#ef4444}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:Inter,system-ui,Segoe UI,Roboto,Arial;background:var(--bg);color:var(--txt)}
a{color:var(--acc);text-decoration:none}
.gradient{background:linear-gradient(120deg,#0ea5e9 0%,#2563eb 50%,#9333ea 100%)}
.top{display:flex;gap:12px;align-items:center;justify-content:space-between;padding:14px 16px;position:sticky;top:0;z-index:10}
.top h1{margin:0;font-size:1.2rem}
.right{display:flex;gap:8px;align-items:center}
.statusbar{position:sticky;top:56px;background:var(--surface);padding:6px 14px;border-bottom:1px solid #1f2937;z-index:9}
.statusbar.center{text-align:center}
.wrap{max-width:960px;margin:18px auto;padding:0 16px}
.card{background:var(--card);border:1px solid #1f2937;border-radius:16px;padding:14px}
.soft{box-shadow:0 6px 24px rgba(0,0,0,.22)}
.intro p{margin:8px 0}
.uploader{margin:14px 0}
.drop{border:2px dashed #334155;border-radius:16px;padding:26px;text-align:center;background:#0b1220}
.drop.drag{border-color:var(--acc);background:#0b1220cc}
.controls{margin-top:14px;display:grid;gap:12px}
.field{display:flex;flex-direction:column;gap:6px}
.row{display:flex;align-items:center}
.gap{gap:10px}
.primary{background:var(--acc);border:1px solid transparent;color:#03131c;font-weight:600;border-radius:12px;padding:12px 16px}
button{border:1px solid #1f2937;background:#0b1220;color:var(--txt);padding:12px 16px;border-radius:12px;cursor:pointer;transition:transform .06s ease, background .2s, border .2s}
button:hover{background:#0c1628}
button:active{transform:translateY(1px)}
button:disabled{opacity:.5;cursor:not-allowed}
.link{color:var(--acc);cursor:pointer;text-decoration:underline}
.preview.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:16px 0}
.thumb{max-width:100%;height:auto;border-radius:12px;border:1px solid #1f2937;background:#0b1220}
.meta{font-size:.9rem;color:var(--mut);margin-top:8px}
.toast{position:fixed;left:50%;bottom:20px;transform:translateX(-50%);background:#0b1220;border:1px solid #1f2937;color:var(--txt);padding:10px 14px;border-radius:12px;opacity:0;pointer-events:none;transition:opacity .25s, bottom .25s;box-shadow:0 8px 24px rgba(0,0,0,.35)}
.toast.show{opacity:1;bottom:28px}
.foot{text-align:center;padding:20px 0;color:var(--mut)}
@media (max-width:820px){.preview.grid{grid-template-columns:1fr}}