/*
 * Öffentliche Buchungsseite (/b/{token}). Standalone, mobile-first, Light/Dark über
 * prefers-color-scheme (Layout setzt html.dark). Akzentfarbe via --booking-accent
 * (vom Layout aus dem Seiten-Branding gesetzt). Design-Tokens aus design-system.css.
 */

:root {
    --bk-accent: var(--booking-accent, #2563eb);
    --bk-bg: #f1f5f9;
    --bk-surface: #ffffff;
    --bk-text: #0f172a;
    --bk-muted: #64748b;
    --bk-border: #e2e8f0;
    --bk-hover: #f8fafc;
}
html.dark {
    --bk-bg: #0b1120;
    --bk-surface: #111827;
    --bk-text: #e5e7eb;
    --bk-muted: #94a3b8;
    --bk-border: #1f2937;
    --bk-hover: #1a2333;
}

.bk-body {
    margin: 0;
    background: var(--bk-bg);
    color: var(--bk-text);
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
}
.bk-wrap {
    max-width: 720px;
    margin: 0 auto;
    padding: 24px 16px 40px;
    min-height: 100vh;
    box-sizing: border-box;
}

.bk-card {
    background: var(--bk-surface);
    border: 1px solid var(--bk-border);
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(2, 6, 23, 0.08);
}

.bk-header-img {
    height: 140px;
    background-size: cover;
    background-position: center;
}
.bk-header-band {
    height: 12px;
    background: var(--bk-accent);
}

.bk-head {
    padding: 20px 24px 4px;
    text-align: center;
}
.bk-logo {
    max-height: 64px;
    max-width: 200px;
    margin: 0 auto 10px;
    display: block;
}
/* Ins Kopfbild ragen darf das Logo nur, wenn es ein Kopfbild gibt — über dem 12px-Band
   würde es vom overflow:hidden der Karte oben abgeschnitten.
   Nur in diesem Fall trägt es auch die Plakette: Sie soll das Logo gegen ein Foto
   abgrenzen. Ohne Kopfbild steht sie als weiße Fläche auf der weißen Karte, und weil
   `box-shadow` dem Bildrahmen folgt und nicht der Form, umgibt ein transparentes Logo
   dann ein sichtbarer rechteckiger Kasten. */
.bk-head--overlap .bk-logo {
    margin-top: -52px;
    background: var(--bk-surface);
    border-radius: 12px;
    padding: 6px;
    box-shadow: 0 4px 14px rgba(2, 6, 23, 0.12);
}
.bk-title {
    font-size: 24px;
    font-weight: 700;
    margin: 6px 0;
}
.bk-intro {
    color: var(--bk-muted);
    font-size: 15px;
    line-height: 1.5;
}

.bk-body-inner { padding: 12px 20px 24px; }

.bk-step-title {
    font-size: 18px;
    font-weight: 650;
    margin: 8px 0 14px;
}

/* Termin-Typ-Liste */
.bk-type-list { display: flex; flex-direction: column; gap: 10px; }
.bk-type {
    display: flex; align-items: center; gap: 12px;
    width: 100%; text-align: left; cursor: pointer;
    background: var(--bk-surface);
    border: 1px solid var(--bk-border);
    border-radius: 14px;
    padding: 14px 16px;
    transition: border-color .15s, box-shadow .15s, transform .05s;
    color: inherit;
}
.bk-type:hover { border-color: var(--bk-accent); box-shadow: 0 4px 14px rgba(2,6,23,.08); }
.bk-type:active { transform: scale(.995); }
.bk-type-main { flex: 1; min-width: 0; }
.bk-type-name { font-weight: 640; font-size: 16px; }
.bk-type-desc { color: var(--bk-muted); font-size: 14px; margin-top: 2px; }
.bk-type-meta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 8px; font-size: 13px; color: var(--bk-muted); }
.bk-type-meta i { color: var(--bk-accent); }
.bk-type-arrow { color: var(--bk-muted); font-size: 18px; }

.bk-back {
    background: none; border: none; color: var(--bk-accent);
    cursor: pointer; font-size: 14px; padding: 4px 0; margin-bottom: 6px;
}

/* Kalender */
.bk-cal { border: 1px solid var(--bk-border); border-radius: 14px; padding: 12px; }
.bk-cal-nav { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.bk-cal-month { font-weight: 640; }
.bk-cal-btn {
    background: var(--bk-hover); border: 1px solid var(--bk-border); border-radius: 8px;
    width: 34px; height: 34px; cursor: pointer; color: inherit;
}
.bk-cal-btn:hover { border-color: var(--bk-accent); }
.bk-cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.bk-cal-wd { text-align: center; font-size: 12px; color: var(--bk-muted); padding: 4px 0; }
.bk-cal-cell {
    aspect-ratio: 1; border: none; background: transparent; border-radius: 10px;
    font-size: 14px; color: var(--bk-text); cursor: default;
    display: flex; align-items: center; justify-content: center;
}
.bk-cal-empty { visibility: hidden; }
.bk-cal-off { color: var(--bk-muted); opacity: .4; }
.bk-cal-avail { cursor: pointer; background: color-mix(in srgb, var(--bk-accent) 12%, transparent); font-weight: 640; }
.bk-cal-avail:hover { background: color-mix(in srgb, var(--bk-accent) 24%, transparent); }
.bk-cal-sel { background: var(--bk-accent) !important; color: #fff !important; }
.bk-cal-loading { text-align: center; color: var(--bk-muted); padding: 10px; font-size: 14px; }
.bk-spin { display: inline-block; animation: bk-spin 1s linear infinite; }
@keyframes bk-spin { to { transform: rotate(360deg); } }

/* Slots */
.bk-slots { margin-top: 16px; }
.bk-slots-title { font-size: 15px; font-weight: 600; margin: 0 0 10px; }
.bk-slots-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(88px, 1fr)); gap: 8px; }
.bk-slot {
    border: 1px solid var(--bk-accent); background: var(--bk-surface); color: var(--bk-accent);
    border-radius: 10px; padding: 10px 6px; cursor: pointer; font-weight: 600; font-size: 14px;
}
.bk-slot:hover { background: var(--bk-accent); color: #fff; }
/* Terminvorschlag (Plan 52): Datum + Uhrzeit je Zeile statt Uhrzeit-Raster */
.bk-slots-list--vorschlag { grid-template-columns: 1fr; }
.bk-slots-list--vorschlag .bk-slot { text-align: left; padding: 12px 14px; min-height: 44px; }

/* Persönliche Einladung: Überschrift + Text des Einladenden */
.bk-invite {
    margin-top: 14px; padding: 12px 14px; border-radius: 12px;
    background: color-mix(in srgb, var(--bk-accent) 8%, transparent);
    border: 1px solid color-mix(in srgb, var(--bk-accent) 25%, transparent);
}
.bk-invite-title { font-weight: 650; font-size: 16px; }
.bk-invite-text { color: var(--bk-text); font-size: 15px; line-height: 1.5; white-space: pre-line; margin-top: 4px; }

/* Formular */
.bk-summary {
    background: var(--bk-hover); border: 1px solid var(--bk-border); border-radius: 12px;
    padding: 12px 14px; margin-bottom: 16px; font-size: 14px; line-height: 1.7;
}
.bk-summary i { color: var(--bk-accent); margin-right: 4px; }
.bk-sum-name { font-weight: 660; font-size: 15px; margin-bottom: 4px; }
.bk-field { margin-bottom: 14px; }
.bk-field label { display: block; font-size: 14px; font-weight: 550; margin-bottom: 5px; }
.bk-req { color: #dc2626; }
.bk-field input, .bk-field textarea {
    width: 100%; box-sizing: border-box; padding: 10px 12px;
    border: 1px solid var(--bk-border); border-radius: 10px;
    background: var(--bk-surface); color: var(--bk-text); font-size: 15px; font-family: inherit;
}
.bk-field input:focus, .bk-field textarea:focus {
    outline: none; border-color: var(--bk-accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--bk-accent) 20%, transparent);
}
.bk-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.bk-submit {
    width: 100%; border: none; background: var(--bk-accent); color: #fff;
    border-radius: 12px; padding: 14px; font-size: 16px; font-weight: 640; cursor: pointer;
    margin-top: 4px;
}
.bk-submit:hover { filter: brightness(1.05); }
.bk-submit:disabled { opacity: .6; cursor: default; }

.bk-error {
    background: color-mix(in srgb, #dc2626 12%, transparent);
    border: 1px solid #dc2626; color: #b91c1c;
    border-radius: 10px; padding: 10px 12px; margin-bottom: 12px; font-size: 14px;
}
html.dark .bk-error { color: #fca5a5; }

/* Bestätigung / Storno */
.bk-confirm { text-align: center; }
.bk-confirm-icon { font-size: 56px; color: #16a34a; margin: 10px 0; }
.bk-confirm-note { color: var(--bk-muted); font-size: 14px; line-height: 1.6; margin-top: 12px; }

.bk-empty { text-align: center; color: var(--bk-muted); padding: 30px 10px; }
.bk-empty i { font-size: 40px; display: block; margin-bottom: 10px; }

/* Manage */
.bk-manage-actions { display: flex; flex-direction: column; gap: 10px; margin-top: 18px; }
.bk-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    border-radius: 12px; padding: 13px; font-size: 15px; font-weight: 600; cursor: pointer; text-decoration: none;
    border: 1px solid var(--bk-border); background: var(--bk-surface); color: var(--bk-text);
}
.bk-btn-danger { border-color: #dc2626; color: #dc2626; }
.bk-btn-danger:hover { background: #dc2626; color: #fff; }
.bk-btn-primary { background: var(--bk-accent); border-color: var(--bk-accent); color: #fff; }
.bk-badge-cancel { display: inline-block; background: color-mix(in srgb,#dc2626 14%,transparent); color: #b91c1c; border-radius: 999px; padding: 4px 12px; font-size: 13px; font-weight: 600; }

/* Footer */
/* Zurück-Zeile über dem Inhalt: die Buchungsseite wird aus dem Kundenportal heraus
   geöffnet und hat sonst keinen Weg dorthin zurück. */
.bk-topbar { margin-bottom: 12px; }

.bk-foot {
    text-align: center; color: var(--bk-muted); font-size: 13px; margin-top: 20px;
    display: flex; gap: 8px; justify-content: center; flex-wrap: wrap;
}
.bk-foot a { color: var(--bk-muted); text-decoration: none; }
.bk-foot a:hover { color: var(--bk-accent); }
.bk-foot-sep { opacity: .5; }

@media (max-width: 480px) {
    .bk-wrap { padding: 12px 10px 30px; }
    .bk-title { font-size: 21px; }
    .bk-body-inner { padding: 10px 14px 20px; }
}