:root {
  --brand: #0092b8;
  --bg: #ffffff;
  --fg: #1c1f23;
  --muted: #5f6b76;
  --line: #d9dee3;
  --chip: #f2f5f7;
  --danger: #c62828;
  --radius: 10px;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #15181b; --fg: #eef1f3; --muted: #a3adb6; --line: #2c3238; --chip: #20252a; --danger: #ef6b6b; }
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--fg); }
body { font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
main { max-width: 480px; margin: 0 auto; padding: 16px; min-height: 420px; }
h1 { font-size: 1.25rem; margin: 0; }
h2 { font-size: 1.1rem; margin: 18px 0 10px; }
h3 { font-size: .95rem; margin: 14px 0 8px; color: var(--muted); }
p { margin: 8px 0; }
a { color: var(--brand); }
.muted { color: var(--muted); font-size: .92rem; }
.venue { display: flex; gap: 12px; align-items: center; }
.logo { width: 48px; height: 48px; border-radius: 10px; object-fit: cover; }
.summary { margin-top: 14px; padding: 8px 12px; background: var(--chip); border-radius: var(--radius); font-weight: 600; }
.error { color: var(--danger); }
.grid, .days { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  min-width: 56px; min-height: 44px; padding: 8px 12px; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--chip); color: var(--fg); font: inherit; cursor: pointer;
}
.chip:hover:not(:disabled), .chip:focus-visible { border-color: var(--brand); outline: none; }
.chip.on { background: var(--brand); border-color: var(--brand); color: #fff; }
.chip:disabled { opacity: .4; cursor: default; }
.other { display: block; margin-top: 12px; }
.other input { font: inherit; padding: 6px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--fg); }
.field { display: block; margin: 12px 0; }
.field span { display: block; font-size: .92rem; margin-bottom: 4px; }
.field input, .field textarea {
  width: 100%; font: inherit; padding: 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--fg);
}
.check { display: flex; gap: 8px; align-items: center; margin: 12px 0; font-size: .95rem; }
.primary, .button {
  display: inline-block; width: 100%; margin-top: 12px; min-height: 48px; padding: 12px 16px; border-radius: var(--radius);
  font: inherit; font-weight: 600; text-align: center; text-decoration: none; cursor: pointer;
  border: 1px solid var(--brand); background: transparent; color: var(--brand);
}
.primary { background: var(--brand); color: #fff; }
.primary:disabled { opacity: .55; cursor: default; }
.link { margin-top: 18px; padding: 8px 0; border: 0; background: none; color: var(--muted); font: inherit; cursor: pointer; }
.done .big { font-size: 1.1rem; font-weight: 600; }
.notice { margin: 14px 0; padding: 12px; border-radius: var(--radius); background: var(--chip); }
.message { text-align: center; padding-top: 48px; }
.powered { text-align: center; font-size: .8rem; color: var(--muted); padding: 8px 0 16px; }
.powered a { color: inherit; }