:root {
  --bg: #f6f5f2;
  --surface: #ffffff;
  --text: #1f2328;
  --muted: #646b73;
  --border: #e2e0db;
  --accent: #2463eb;
  --accent-soft: #dbe6fd;
  --accent-text: #ffffff;
  --booked: #d64545;
  --booked-soft: #fbe3e3;
  --pending: #c98a00;
  --pending-soft: #fdf1d3;
  --ok: #1a7f4b;
  --radius: 12px;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.04), 0 4px 16px rgb(0 0 0 / 0.04);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171a;
    --surface: #1e2125;
    --text: #e8e9ea;
    --muted: #9aa1a8;
    --border: #2f3338;
    --accent: #6d9bff;
    --accent-soft: #24345a;
    --accent-text: #0e1420;
    --booked: #f07575;
    --booked-soft: #4a2526;
    --pending: #f0bd4f;
    --pending-soft: #45381a;
    --ok: #5fd39a;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }

.site-header { padding: 32px 0 16px; }
.site-header h1 { margin: 0; font-size: 1.8rem; letter-spacing: -0.01em; }
.site-header .lead { margin: 4px 0 0; color: var(--muted); }
.badge {
  display: inline-block; margin-left: 8px; padding: 2px 8px; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent); font-size: 0.8rem; vertical-align: middle;
}

/* Tabs */
.tabs {
  display: inline-flex; gap: 4px; padding: 4px; margin: 8px 0 20px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 999px;
}
.tab {
  border: 0; background: transparent; color: var(--muted); font: inherit; font-weight: 600;
  padding: 8px 20px; border-radius: 999px; cursor: pointer;
}
.tab[aria-selected="true"] { background: var(--accent); color: var(--accent-text); }
.tab:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Layout */
.layout { display: grid; grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr); gap: 20px; align-items: start; }
@media (max-width: 900px) { .layout { grid-template-columns: 1fr; } }

.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow);
}
.card h2 { margin: 0 0 8px; font-size: 1.15rem; }
.stack { display: grid; gap: 20px; }

/* Kalender */
.cal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.cal-title { margin: 0; font-size: 1.1rem; }
.cal-nav {
  width: 36px; height: 36px; border-radius: 50%; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); font-size: 1.3rem; line-height: 1; cursor: pointer;
}
.cal-nav:hover { background: var(--bg); }
.cal-months { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.cal-month-title { margin: 0 0 8px; font-size: 0.95rem; text-align: center; color: var(--muted); }
.cal-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 4px; }
.cal-weekday { text-align: center; font-size: 0.8rem; color: var(--muted); padding-bottom: 4px; }
.cal-day {
  aspect-ratio: 1 / 1; min-height: 32px; padding: 0; border: 1px solid var(--border); border-radius: 8px;
  background: var(--surface); color: var(--text); font: inherit; cursor: pointer;
}
.cal-day:hover:not(:disabled) { border-color: var(--accent); }
.cal-day:disabled { opacity: 0.4; cursor: default; }
.cal-day.is-today { font-weight: 700; text-decoration: underline; }
.cal-day.is-booked { background: var(--booked-soft); border-color: var(--booked); color: var(--booked); font-weight: 600; }
.cal-day.is-pending {
  background: repeating-linear-gradient(135deg, var(--pending-soft) 0 6px, var(--surface) 6px 12px);
  border-color: var(--pending); color: var(--pending); font-weight: 600;
}
.cal-day.is-in-range { background: var(--accent-soft); border-color: var(--accent); }
.cal-day.is-sel-start, .cal-day.is-sel-end { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }

.legend { display: flex; flex-wrap: wrap; gap: 16px; list-style: none; padding: 0; margin: 16px 0 0; font-size: 0.9rem; color: var(--muted); }
.legend li { display: flex; align-items: center; gap: 6px; }
.swatch { width: 14px; height: 14px; border-radius: 4px; border: 1px solid var(--border); background: var(--surface); }
.swatch-booked { background: var(--booked-soft); border-color: var(--booked); }
.swatch-pending { background: var(--pending-soft); border-color: var(--pending); }
.swatch-selected { background: var(--accent); border-color: var(--accent); }
.hint { color: var(--muted); font-size: 0.9rem; margin: 8px 0 0; }

/* Formulare */
form { display: grid; gap: 12px; }
form .hint { margin: 0; }
label { display: grid; gap: 4px; font-size: 0.9rem; font-weight: 600; }
input, textarea, select {
  font: inherit; font-weight: 400; color: var(--text); background: var(--bg);
  border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; width: 100%;
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.row-3 { grid-template-columns: 2fr 1fr 2fr; }
@media (max-width: 600px) { .row-3 { grid-template-columns: 1fr; } }
label.check { display: flex; align-items: center; gap: 8px; font-weight: 600; }
label.check input { width: auto; margin: 0; accent-color: var(--accent); }
.mail-form { margin-top: 12px; }
.sub-form { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border); }
.sub-form h3 { margin: 0; font-size: 1rem; }
details.sub-form summary { cursor: pointer; font-weight: 600; }
details.sub-form[open] summary { margin-bottom: 8px; }
.access-result { margin-top: 12px; padding: 12px; border: 1px solid var(--accent); border-radius: 10px; background: var(--accent-soft); }
.access-result-text { margin: 0; }
.access-result .inline-form { border-top: 0; padding-top: 0; }
.access-result .hint { margin: 4px 0 0; }
.login-card { max-width: 420px; }
.header-account { margin-top: 12px; max-width: 420px; }
.inline-form { display: flex; align-items: end; gap: 12px; flex-wrap: wrap; margin-top: 8px; padding-top: 16px; border-top: 1px solid var(--border); }
.inline-form label { flex: 1 1 240px; }

.btn {
  font: inherit; font-weight: 600; border-radius: 8px; padding: 9px 16px; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
}
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn-ok { background: var(--ok); border-color: var(--ok); color: #fff; }
.btn-danger { color: var(--booked); border-color: var(--booked); }
.btn-small { padding: 5px 12px; font-size: 0.9rem; }
.btn:disabled { opacity: 0.5; cursor: default; }

.message { margin: 0; min-height: 1.5em; font-size: 0.95rem; }
.message[data-kind="error"] { color: var(--booked); }
.message[data-kind="success"] { color: var(--ok); }

/* Listen im Admin */
.list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.hint + .list { margin-top: 12px; }
.list-empty { color: var(--muted); font-size: 0.95rem; }
.item {
  border: 1px solid var(--border); border-radius: 10px; padding: 12px;
  display: grid; gap: 6px;
}
.item-title { font-weight: 600; }
.item-meta { color: var(--muted); font-size: 0.9rem; overflow-wrap: anywhere; }
.item-note { font-size: 0.9rem; white-space: pre-wrap; overflow-wrap: anywhere; }
.item-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.pill {
  display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 0.8rem; font-weight: 600;
  background: var(--accent-soft); color: var(--accent); margin-right: 6px;
}
.pill-muted { background: var(--bg); color: var(--muted); border: 1px solid var(--border); }

.account-bar {
  display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap;
  margin: 0; padding: 8px 12px; border-radius: 8px; background: var(--bg); font-size: 0.9rem; overflow-wrap: anywhere;
}

footer { color: var(--muted); font-size: 0.85rem; padding: 32px 0; }