:root { --bg: #0f1115; --card: #1a1d24; --fg: #e6e8eb; --muted: #9aa0aa; --accent: #4f8cff; --ok: #3ecf8e; --err: #ff6b6b; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: grid; place-items: center; background: var(--bg);
  color: var(--fg); font: 15px/1.5 system-ui, -apple-system, Segoe UI, Roboto, sans-serif; padding: 24px; }
.card { width: 100%; max-width: 540px; background: var(--card); border: 1px solid #272b34;
  border-radius: 14px; padding: 28px; box-shadow: 0 12px 40px rgba(0,0,0,.4); }
h1 { margin: 0 0 16px; font-size: 22px; }
.muted { color: var(--muted); }
.error { color: var(--err); }
.ok { color: var(--ok); }
.row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
label { display: block; margin: 12px 0; font-size: 13px; color: var(--muted); }
input[type=text], input:not([type]), input[type=password] { width: 100%; margin-top: 6px; padding: 10px 12px;
  background: #0f1218; border: 1px solid #2c313b; border-radius: 8px; color: var(--fg); font-size: 15px; }
button { margin-top: 8px; padding: 11px 16px; background: var(--accent); color: #fff; border: 0;
  border-radius: 8px; font-size: 15px; font-weight: 600; cursor: pointer; }
button:disabled { opacity: .45; cursor: not-allowed; }
button.link { background: none; color: var(--accent); padding: 0; font-weight: 500; }
.drop { display: flex; flex-direction: column; gap: 4px; padding: 18px; border: 1.5px dashed #2f3744;
  border-radius: 10px; cursor: pointer; transition: border-color .15s, background .15s; }
.drop.over { border-color: var(--accent); background: rgba(79,140,255,.08); }
.drop strong { color: var(--fg); font-size: 14px; }
#progress { list-style: none; margin: 18px 0 0; padding: 0; display: grid; gap: 10px; }
#progress li { display: grid; gap: 6px; }
.fname { font-size: 13px; color: var(--muted); word-break: break-all; }
.track { height: 8px; background: #0f1218; border-radius: 6px; overflow: hidden; }
.bar { display: block; height: 100%; width: 0; background: var(--accent); transition: width .2s; }
code { background: #0f1218; padding: 1px 5px; border-radius: 4px; }