:root {
  color-scheme: light dark;
  font-family: Inter, "Segoe UI", Tahoma, sans-serif;
  line-height: 1.55;
}

* { box-sizing: border-box; }
body { margin: 0; background: #f7f8fa; color: #20242b; }
.app { max-width: 560px; margin: 0 auto; padding: 22px; }
.eyebrow { margin: 0 0 5px; color: #657080; font-size: 10px; letter-spacing: .08em; direction: ltr; text-align: right; }
h1 { margin: 0; font-size: 25px; }
.intro { margin: 5px 0 18px; color: #505967; }
.notice, .status, .summary { border: 1px solid #d9dee7; border-radius: 10px; padding: 13px; background: #fff; }
.notice { margin-bottom: 18px; border-inline-start: 4px solid #66758a; }
.notice p { margin: 4px 0 0; color: #505967; }
.field { display: grid; gap: 7px; margin: 0 0 14px; }
label { font-weight: 650; }
input[type="file"] { width: 100%; border: 1px solid #cbd2dc; border-radius: 8px; padding: 10px; background: #fff; color: #20242b; }
small { color: #657080; }
.status { margin: 12px 0; min-height: 48px; white-space: pre-wrap; overflow-wrap: anywhere; }
.status.ok { border-color: #83b59a; background: #f1faf4; }
.status.error { border-color: #d69a9a; background: #fff4f4; }
.summary { margin-top: 14px; }
h2 { margin: 0 0 10px; font-size: 16px; }
dl { margin: 0; }
dl div { display: flex; justify-content: space-between; gap: 12px; border-bottom: 1px solid #edf0f4; padding: 6px 0; }
dt { color: #657080; }
dd { margin: 0; font-weight: 600; text-align: left; overflow-wrap: anywhere; }
.warning { margin: 12px 0; color: #6d5726; font-size: 12px; }
button { width: 100%; border: 0; border-radius: 8px; padding: 12px 16px; background: #275dad; color: white; font-weight: 700; cursor: pointer; }
button:disabled { opacity: .45; cursor: not-allowed; }
footer { margin-top: 18px; color: #778190; font-size: 11px; }
[hidden] { display: none !important; }

@media (prefers-color-scheme: dark) {
  body { background: #171a1f; color: #e8ebf0; }
  .notice, .status, .summary, input[type="file"] { background: #20252d; color: #e8ebf0; border-color: #424b59; }
  .intro, .notice p { color: #c0c7d1; }
  dt, small, footer, .eyebrow { color: #9ba6b6; }
  dl div { border-color: #343c48; }
  .status.ok { background: #1c3027; }
  .status.error { background: #382323; }
  .warning { color: #ddc58c; }
}