/**
 * Booking Date Modal (BDM) — shared shell, styled per theme via CSS variables.
 * Include once per theme page; add a `body.theme-<slug> { --bdm-accent: ... }`
 * block below (or in the theme's own stylesheet) to match that theme's palette.
 */
:root {
  --bdm-accent: #2563eb;
  --bdm-accent2: #3b82f6;
  --bdm-soft: #eff6ff;
}

#bdm-overlay {
  display: none; position: fixed; inset: 0; z-index: 9998;
  background: rgba(15, 23, 42, .45); backdrop-filter: blur(2px);
}
#bdm-overlay.bdm-open { display: block; }
#bdm-modal {
  display: none; position: fixed; z-index: 9999; left: 50%; top: 50%;
  transform: translate(-50%, -50%); width: min(400px, calc(100vw - 2rem));
  max-height: min(640px, calc(100vh - 2rem)); overflow-y: auto;
  background: #fff; border-radius: 20px; box-shadow: 0 24px 64px rgba(15, 23, 42, .35);
  font-family: 'Sarabun', sans-serif;
}
#bdm-modal.bdm-open { display: block; }
.bdm-head {
  display: flex; align-items: flex-start; justify-content: space-between; gap: .75rem;
  padding: 1.15rem 1.25rem .9rem; border-bottom: 1px solid #eef0f4; background: #f8fafc;
  border-radius: 20px 20px 0 0;
}
.bdm-head h3 { margin: 0; font-size: 1.05rem; font-weight: 800; color: #0f172a; }
.bdm-head p { margin: .2rem 0 0; font-size: .78rem; color: #64748b; }
.bdm-close {
  border: none; background: #fff; width: 30px; height: 30px; border-radius: 50%;
  color: var(--bdm-accent); font-size: 1.1rem; line-height: 1; cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, .08); flex-shrink: 0;
}
.bdm-body { padding: 1.1rem 1.25rem 1.25rem; }
.bdm-times { display: grid; grid-template-columns: 1fr 1fr; gap: .625rem; margin-bottom: .875rem; }
.bdm-times label { display: block; font-size: .72rem; font-weight: 700; color: var(--bdm-accent); margin-bottom: .3rem; }
.bdm-times input[type=time] {
  width: 100%; padding: .5rem .65rem; border: 1.5px solid #e2e8f0; border-radius: 9px;
  font-size: .85rem; font-family: inherit; background: #f8fafc; color: #0f172a; accent-color: var(--bdm-accent);
}
.bdm-nav {
  background: none; border: 1.5px solid #e2e8f0; border-radius: 8px; width: 30px; height: 30px;
  cursor: pointer; color: #334155; font-size: .9rem; font-family: inherit;
}
.bdm-cal-title { font-weight: 800; font-size: .95rem; color: #0f172a; }
.bdm-cal-dow { display: grid; grid-template-columns: repeat(7, 1fr); margin-bottom: .35rem; }
.bdm-cal-dow div { text-align: center; font-size: .68rem; font-weight: 700; color: #94a3b8; }
.bdm-cal-dow .bdm-dow-sun { color: #ef4444; }
.bdm-cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; }
.bdm-day {
  text-align: center; font-size: .82rem; padding: .3rem .05rem; border-radius: 8px;
  user-select: none; cursor: pointer;
}
.bdm-day span {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 50%; font-weight: 600; color: #0f172a;
}
.bdm-day-sun span { color: #ef4444; }
.bdm-day-past { opacity: .35; cursor: default; }
.bdm-day-past span { color: #94a3b8; }
.bdm-day-booked { cursor: not-allowed; }
.bdm-day-booked span { color: #cbd5e1 !important; text-decoration: line-through; }
.bdm-day-inrange { background: var(--bdm-soft); }
.bdm-day-inrange span { color: var(--bdm-accent); font-weight: 700; }
.bdm-day-sel span { background: linear-gradient(135deg, var(--bdm-accent), var(--bdm-accent2)); color: #fff !important; font-weight: 800; }
.bdm-day-sel-start { background: linear-gradient(to right, transparent 50%, var(--bdm-soft) 50%); border-radius: 50% 0 0 50%; }
.bdm-day-sel-end { background: linear-gradient(to left, transparent 50%, var(--bdm-soft) 50%); border-radius: 0 50% 50% 0; }
.bdm-legend { display: flex; gap: 1rem; flex-wrap: wrap; font-size: .7rem; color: #64748b; margin: .75rem 0 .5rem; }
.bdm-legend span { display: inline-flex; align-items: center; gap: .3rem; }
.bdm-dot { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
.bdm-dot-sel { background: linear-gradient(135deg, var(--bdm-accent), var(--bdm-accent2)); }
.bdm-dot-booked { background: #e2e8f0; }
.bdm-summary {
  background: var(--bdm-soft); border-radius: 10px; padding: .6rem .85rem; font-size: .8rem;
  color: var(--bdm-accent); font-weight: 700; margin-bottom: .875rem; min-height: 2.4em; display: flex; align-items: center;
}
.bdm-warn {
  background: #fef2f2; border: 1px solid #fca5a5; color: #dc2626; border-radius: 10px;
  padding: .55rem .8rem; font-size: .76rem; font-weight: 700; margin-bottom: .75rem; display: none;
}
.bdm-loading { text-align: center; padding: 2.5rem 0; color: #64748b; font-size: .85rem; }
.bdm-actions { display: flex; gap: .625rem; margin-top: .25rem; }
.bdm-btn-cancel {
  flex: 0 0 auto; background: #fff; color: #334155; border: 1px solid #e2e8f0;
  padding: .7rem 1.1rem; border-radius: 999px; cursor: pointer; font-family: inherit; font-size: .82rem; font-weight: 700;
}
.bdm-btn-confirm {
  flex: 1; background: linear-gradient(135deg, var(--bdm-accent), var(--bdm-accent2)); color: #fff; border: none;
  padding: .7rem 1.1rem; border-radius: 999px; cursor: pointer; font-family: inherit; font-size: .85rem; font-weight: 800;
  box-shadow: 0 6px 18px rgba(0, 0, 0, .18);
}
.bdm-btn-confirm:disabled { opacity: .5; cursor: not-allowed; box-shadow: none; }

/* ── Per-theme accent mapping ── */
body.theme-sakuragold   { --bdm-accent: var(--skg-rose3, #a02555); --bdm-accent2: var(--skg-rose, #e0457b); --bdm-soft: var(--skg-blush, #fbe9ef); }
body.theme-sakura       { --bdm-accent: var(--sk-rose3, #be185d);  --bdm-accent2: var(--sk-rose, #ec4899);  --bdm-soft: var(--sk-blush, #fce7f3); }
body.theme-blackpro     { --bdm-accent: #9a7a2f; --bdm-accent2: var(--lx-gold, #c9a24b); --bdm-soft: rgba(201,162,75,.12); }
body.theme-luxe         { --bdm-accent: #9a7a2f; --bdm-accent2: var(--lx-gold, #c9a24b); --bdm-soft: rgba(201,162,75,.12); }
body.theme-canyon       { --bdm-accent: var(--cy-red2, #9a3412); --bdm-accent2: var(--cy-red3, #f59e0b); --bdm-soft: var(--cy-rose, #fed7aa); }
body.theme-carbonsport  { --bdm-accent: var(--cs-red-dark, #991b1f); --bdm-accent2: var(--cs-red, #e11d2e); --bdm-soft: rgba(225,29,46,.12); }
body.theme-ecogreen     { --bdm-accent: var(--eg-dk, #065f46); --bdm-accent2: var(--eg-mid, #059669); --bdm-soft: var(--eg-bg, #f0fdf4); }
body.theme-elegant      { --bdm-accent: #c2410c; --bdm-accent2: #F97316; --bdm-soft: #FFFBF5; }
body.theme-goldnight    { --bdm-accent: var(--gn-gold-dk, #9a7828); --bdm-accent2: var(--gn-gold, #c9a046); --bdm-soft: var(--gn-gold-bg, rgba(201,160,70,.08)); }
body.theme-ivoryzen     { --bdm-accent: var(--iz-gold2, #92400e); --bdm-accent2: var(--iz-gold, #b45309); --bdm-soft: var(--iz-sand2, #e7e5e4); }
body.theme-modern       { --bdm-accent: #d97706; --bdm-accent2: #f59e0b; --bdm-soft: #fffbeb; }
body.theme-neoncity     { --bdm-accent: #c81760; --bdm-accent2: var(--nc-pink, #ff2d78); --bdm-soft: rgba(255,45,120,.12); }
body.theme-oceanblue    { --bdm-accent: var(--ob-blue-dk, #0284c7); --bdm-accent2: var(--ob-blue, #0ea5e9); --bdm-soft: var(--ob-bg, #f0f9ff); }
body.theme-premium      { --bdm-accent: var(--pr-blue-dark, #1e40af); --bdm-accent2: var(--pr-blue, #2563eb); --bdm-soft: var(--pr-bg, #f6f9ff); }
body.theme-terra        { --bdm-accent: var(--tr-orange-dk, #c2410c); --bdm-accent2: var(--tr-orange, #ea580c); --bdm-soft: var(--tr-sand, #fef3e2); }
body.theme-whitegold    { --bdm-accent: var(--wg-gold-dark, #b8962f); --bdm-accent2: var(--wg-gold, #d4af37); --bdm-soft: var(--wg-cream, #faf8f5); }
body.theme-sunset       { --bdm-accent: #ea580c; --bdm-accent2: #f97316; --bdm-soft: #fff7ed; }