:root {
  --bg: #f4efe6;
  --ink: #1b2b2f;
  --muted: #5f6f6f;
  --brand: #173d47;
  --accent: #1f6f5c;
  --danger: #b23a3a;
  --card: #ffffff;
  --line: #e4dccd;
}
* { box-sizing: border-box; }
.hidden { display: none; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  padding-bottom: env(safe-area-inset-bottom);
}
.wrap { max-width: 640px; margin: 0 auto; padding: 20px 16px 48px; }
.app-head h1 { font-size: 1.5rem; margin: 8px 0 4px; color: var(--brand); }
.muted { color: var(--muted); font-size: 0.92rem; }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px; margin: 14px 0; }
.panel h2 { font-size: 1.1rem; margin: 0 0 12px; }
label { display: block; font-size: 0.9rem; color: var(--muted); margin-bottom: 12px; }
input, textarea, select {
  display: block; width: 100%; margin-top: 4px; padding: 12px;
  font-size: 1rem; color: var(--ink);
  border: 1px solid var(--line); border-radius: 10px; background: #fff;
}
.btn {
  display: inline-block; width: 100%; padding: 14px; font-size: 1rem; font-weight: 600;
  border: none; border-radius: 12px; cursor: pointer;
}
.btn.primary { background: var(--accent); color: #fff; }
.status { margin: 10px 0 0; font-size: 0.9rem; color: var(--accent); min-height: 1.2em; }
.notice { background: #fff7e6; border: 1px solid #f0d9a8; border-radius: 12px; padding: 14px 16px; margin: 14px 0; }
.notice ol { margin: 8px 0 0; padding-left: 20px; }
.notice li { margin: 4px 0; }
.card {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 12px 0; border-bottom: 1px solid var(--line);
}
.card:last-child { border-bottom: none; }
.link { background: none; border: none; cursor: pointer; font-size: 0.9rem; color: var(--accent); }
.link.danger { color: var(--danger); }
.app-foot { text-align: center; margin-top: 20px; font-size: 0.9rem; }
.app-foot a { color: var(--brand); }
@media (prefers-color-scheme: dark) {
  :root { --bg: #10201f; --ink: #e8efe9; --muted: #9fb0ab; --card: #17302c; --line: #24433d; }
  input, textarea, select { background: #0f2422; color: var(--ink); }
  .notice { background: #2a2410; border-color: #4a3f1e; }
}