:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #1a2332;
  --muted: #5b6b82;
  --primary: #c1121f;
  --primary-dark: #8d0d16;
  --border: #dbe2ef;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}
.container { max-width: 760px; margin: 0 auto; padding: 32px 16px 48px; }
header h1 { margin: 0 0 8px; font-size: 1.9rem; }
.subtitle { color: var(--muted); margin-top: 0; line-height: 1.5; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px;
  box-shadow: 0 6px 24px rgba(26,35,50,.07);
}
label { font-weight: 600; display: block; margin-bottom: 8px; }
.row { display: flex; gap: 10px; }
input[type="url"] {
  flex: 1;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 1rem;
}
button, .btn {
  background: var(--primary);
  color: #fff;
  border: 0;
  border-radius: 10px;
  padding: 12px 18px;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  white-space: nowrap;
}
button:hover, .btn:hover { background: var(--primary-dark); }
button:disabled { opacity: .6; cursor: wait; }
.btn.secondary { background: #22344d; }
.hint { color: var(--muted); font-size: .9rem; }
.status { margin-top: 14px; min-height: 1.4em; }
.status.error { color: var(--primary); font-weight: 600; }
.status.loading { color: var(--muted); }
.result { margin-top: 18px; border-top: 1px solid var(--border); padding-top: 18px; }
.meta { display: grid; gap: 6px; margin-bottom: 12px; }
.label { color: var(--muted); font-size: .9rem; }
.badge {
  background: #e8f0fe;
  border: 1px solid #c2d6fa;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: .9rem;
}
#preview {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  font-family: ui-monospace, Consolas, monospace;
  font-size: .92rem;
  line-height: 1.5;
  resize: vertical;
}
.actions { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
#archiveCard { margin-top: 18px; }
#archiveCard h2 { margin: 0 0 6px; font-size: 1.2rem; }
.filelist { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 8px; }
.filelist li { border: 1px solid var(--border); border-radius: 10px; padding: 8px 12px; background: #fbfcff; }
.filelist li.muted { color: var(--muted); background: transparent; border-style: dashed; }
.filelist a { font-weight: 600; }
footer { color: var(--muted); font-size: .85rem; text-align: center; margin-top: 18px; }
@media (max-width: 600px) {
  .row { flex-direction: column; }
}