:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --ink: #1b1f24;
  --muted: #6b7480;
  --line: #e3e6ea;
  --accent: #1f6feb;
  --accent-ink: #ffffff;
  --ok: #147a3d;
  --err: #b32020;
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171a;
    --card: #1c2126;
    --ink: #e9edf1;
    --muted: #9aa4b0;
    --line: #2c333a;
    --accent: #4d8ef7;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

main { max-width: 720px; margin: 0 auto; padding: 20px 16px 40px; }

.top {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  max-width: 720px; margin: 0 auto; padding: 18px 16px 6px;
}
.brand { font-weight: 600; }
.who { display: flex; align-items: center; gap: 12px; font-size: 14px; color: var(--muted); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}
.center { text-align: center; }
.center form { text-align: left; }
h1 { font-size: 22px; margin: 0 0 8px; }
h2 { font-size: 17px; margin: 0 0 16px; }

.muted { color: var(--muted); }
.small { font-size: 13px; }
.right { text-align: right; }

label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }

input[type=email], input[type=date], select {
  width: 100%; padding: 11px 12px; font: inherit;
  color: var(--ink); background: var(--card);
  border: 1px solid var(--line); border-radius: 8px;
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.field { margin-bottom: 18px; }

button { font: inherit; cursor: pointer; }
button:disabled { opacity: .5; cursor: not-allowed; }

.primary {
  width: 100%; padding: 12px 16px; margin-top: 4px;
  background: var(--accent); color: var(--accent-ink);
  border: 0; border-radius: 8px; font-weight: 600;
}
.linky {
  background: none; border: 0; color: var(--accent); padding: 0; text-decoration: underline;
}

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 9px 14px; border: 1px solid var(--line); border-radius: 999px;
  background: var(--card); color: var(--ink);
}
.chip[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

.slots { display: flex; flex-wrap: wrap; gap: 8px; }
.slot {
  padding: 9px 12px; min-width: 74px; border: 1px solid var(--line);
  border-radius: 8px; background: var(--card); color: var(--ink); font-variant-numeric: tabular-nums;
}
.slot[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

.credit-bar {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 16px 20px; margin-bottom: 16px;
}
.credit-num { font-size: 26px; font-weight: 700; line-height: 1.1; }

.booking {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 12px 0; border-top: 1px solid var(--line);
}
.booking:first-child { border-top: 0; }
.booking .when { font-variant-numeric: tabular-nums; }

.msg { margin: 14px 0 0; padding: 11px 13px; border-radius: 8px; font-size: 14px; }
.msg.ok { background: rgba(20, 122, 61, .12); color: var(--ok); }
.msg.err { background: rgba(179, 32, 32, .12); color: var(--err); }

footer { padding: 8px 16px 30px; }