* { box-sizing: border-box; font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; }
body { margin: 0; background: #0b1020; color: #e8ecff; }
.wrap { max-width: 720px; margin: 48px auto; padding: 0 18px; }
h1 { margin: 0 0 6px; font-size: 34px; }
.sub { margin: 0 0 18px; opacity: .8; }
.card { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); border-radius: 14px; padding: 18px; }
.lbl { display: block; margin: 14px 0 8px; font-weight: 600; }
input[type="file"] { width: 100%; padding: 10px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.16); border-radius: 10px; color: #e8ecff; }
button { width: 100%; margin-top: 16px; padding: 12px; border: 0; border-radius: 10px; font-weight: 700; cursor: pointer; }
button:disabled { opacity: .6; cursor: not-allowed; }
.status { margin-top: 12px; min-height: 22px; opacity: .9; }
footer { margin-top: 18px; opacity: .6; }