:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #1c1e21;
  --muted: #6b7280;
  --border: #e3e5e8;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --accent-soft: #e8efff;
  --danger: #dc2626;
  --ok: #15803d;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(0,0,0,.05), 0 4px 16px rgba(0,0,0,.04);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1115;
    --card: #181b21;
    --text: #e6e8eb;
    --muted: #9aa3ad;
    --border: #2a2f37;
    --accent: #5b8cff;
    --accent-text: #0b1020;
    --accent-soft: #1d2740;
    --danger: #f87171;
    --ok: #4ade80;
    --shadow: none;
  }
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg); color: var(--text);
  min-height: 100vh; display: flex; flex-direction: column;
}
a { color: var(--accent); }
code { font-size: .9em; background: var(--accent-soft); padding: 0 .3em; border-radius: 4px; word-break: break-all; }
.site-header { display: flex; justify-content: space-between; align-items: center; padding: .9rem 1.25rem; border-bottom: 1px solid var(--border); background: var(--card); }
.brand { font-weight: 600; text-decoration: none; color: var(--text); }
.site-footer { padding: 1rem; text-align: center; color: var(--muted); font-size: .85rem; margin-top: auto; }
.container { width: 100%; max-width: 900px; margin: 0 auto; padding: 1.25rem; }
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; margin-bottom: 1.25rem; box-shadow: var(--shadow); }
.card.center { text-align: center; }
.card.narrow { max-width: 420px; margin: 3rem auto; }
h1 { font-size: 1.6rem; margin: 0 0 .5rem; }
h2 { font-size: 1.15rem; margin: 0 0 .75rem; }
h3 { font-size: 1rem; margin: 1rem 0 .25rem; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.error { color: var(--danger); }
.ok-text { color: var(--ok); }
.req { color: var(--danger); }
.flash { padding: .75rem 1rem; border-radius: var(--radius); margin: 0 0 1rem; }
.flash.ok { background: rgba(21,128,61,.12); color: var(--ok); }
.flash.err { background: rgba(220,38,38,.12); color: var(--danger); }
.tag { font-size: .7rem; background: var(--accent-soft); color: var(--accent); padding: .1em .5em; border-radius: 999px; vertical-align: middle; }

label { display: block; margin-bottom: .8rem; font-weight: 500; font-size: .95rem; }
input[type=text], input[type=email], input[type=tel], input[type=password], input[type=number], select, textarea {
  display: block; width: 100%; margin-top: .3rem; padding: .55rem .7rem; font: inherit;
  color: var(--text); background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
}
input:focus, select:focus, textarea:focus, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
button, .button {
  font: inherit; font-weight: 600; padding: .6rem 1rem; border-radius: 8px; border: 1px solid var(--border);
  background: var(--card); color: var(--text); cursor: pointer; text-decoration: none; display: inline-block;
}
button.primary, .button.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
button.secondary, .button.secondary { background: transparent; }
button.danger { color: var(--danger); border-color: var(--danger); background: transparent; }
button.link { border: none; background: none; color: var(--accent); padding: 0; font-weight: 500; }
button[disabled] { opacity: .5; cursor: not-allowed; }
form.inline { display: inline; }
.actions { display: flex; gap: .75rem; flex-wrap: wrap; align-items: center; margin-top: .5rem; }
.stack label { margin-bottom: .6rem; }
.two-col { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 0 1rem; }
.hp { position: absolute; left: -9999px; top: -9999px; height: 0; overflow: hidden; }

/* booking page */
.controls { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.control { flex: 0 0 160px; }
.control.grow { flex: 1 1 240px; }
.steps { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
@media (min-width: 720px) { .steps { grid-template-columns: 1fr 1fr; } }
.cal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: .5rem; }
.cal-head h2 { margin: 0; }
.nav { padding: .3rem .8rem; font-size: 1.2rem; }
.weekdays, .grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.weekdays span { text-align: center; font-size: .75rem; color: var(--muted); padding-bottom: .25rem; }
.day { aspect-ratio: 1; border-radius: 8px; border: 1px solid transparent; background: transparent; color: var(--muted); font: inherit; cursor: default; padding: 0; }
.day.available { background: var(--accent-soft); color: var(--accent); font-weight: 600; cursor: pointer; }
.day.available:hover { border-color: var(--accent); }
.day.selected { background: var(--accent); color: var(--accent-text); }
.day.today { text-decoration: underline; }
.day.empty { visibility: hidden; }
.slots { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: .5rem; max-height: 420px; overflow-y: auto; padding-right: .25rem; }
.slot { padding: .55rem .5rem; text-align: center; border: 1px solid var(--accent); color: var(--accent); background: transparent; border-radius: 8px; font-weight: 600; }
.slot:hover, .slot.selected { background: var(--accent); color: var(--accent-text); }
.summary { padding: .6rem .8rem; background: var(--accent-soft); border-radius: 8px; font-size: .95rem; }
#step-form { grid-column: 1 / -1; }
.details { display: grid; grid-template-columns: max-content 1fr; gap: .4rem 1rem; margin: 1rem 0; }
.details dt { color: var(--muted); }
.details dd { margin: 0; word-break: break-word; }
@media (max-width: 520px) { .details { grid-template-columns: 1fr; } .details dt { margin-top: .5rem; } }

/* admin */
.connect-buttons { display: flex; gap: .75rem; flex-wrap: wrap; margin: .5rem 0 1rem; }
.write-summary { margin: 0 0 1rem; }
.account { border: 1px solid var(--border); border-radius: var(--radius); padding: .75rem 1rem; margin-bottom: 1rem; }
.account.account-write { border-color: var(--ok); box-shadow: inset 4px 0 0 var(--ok); }
.account-head { display: flex; gap: .75rem; flex-wrap: wrap; align-items: baseline; margin-bottom: .5rem; }
.badge { font-size: .72rem; font-weight: 600; letter-spacing: .03em; text-transform: uppercase; padding: .15em .6em; border-radius: 999px; border: 1px solid transparent; vertical-align: middle; }
.badge-readonly { color: var(--muted); border-color: var(--border); background: transparent; }
.badge-booking { color: var(--accent); background: var(--accent-soft); }
.badge-target { color: var(--ok); border-color: var(--ok); background: transparent; text-transform: none; }
input[type=radio][disabled] { opacity: .35; cursor: not-allowed; }
.account-actions { display: flex; gap: .5rem; flex-wrap: wrap; margin: .5rem 0 1rem; }
.target-hint { display: block; line-height: 1.2; }
table { border-collapse: collapse; width: 100%; font-size: .92rem; }
th, td { text-align: left; padding: .45rem .5rem; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; }
.cal-table td:nth-child(3), .cal-table td:nth-child(4), .cal-table th:nth-child(3), .cal-table th:nth-child(4) { text-align: center; }
.table-wrap { overflow-x: auto; }
tr.cancelled td { opacity: .6; text-decoration: line-through; }