/* booking dialog: solid surface, one hairline, amber only on the chosen slot and the send square */
#book-dialog { width: min(34rem, calc(100vw - 32px)); max-height: calc(100dvh - 32px); padding: 0; border: var(--rule-w) solid var(--rule);
  border-radius: 18px; background: var(--surface-1); color: var(--ink); box-shadow: 0 40px 120px -40px oklch(6% 0.01 70);
  font-family: var(--font-text); overflow: auto; }
#book-dialog::backdrop { background: color-mix(in oklab, var(--canvas) 72%, transparent); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
#book-dialog[open] { animation: bk-in 260ms var(--ease-out); }
#book-dialog[open]::backdrop { animation: bk-fade 260ms var(--ease-out); }
@keyframes bk-in { from { opacity: 0; transform: translateY(10px) scale(0.985); } }
@keyframes bk-fade { from { opacity: 0; } }
.bk-in { padding: clamp(24px, 5vw, 40px); }
.bk-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 28px; }
.bk-top h2 { margin: 0; font-family: var(--font-display); font-weight: 300; font-size: clamp(1.5rem, 1.1rem + 1.2vw, 1.95rem); letter-spacing: -0.025em; line-height: 1.08; }
.bk-top p { margin: 10px 0 0; color: var(--ink-soft); font-size: var(--text-sm); }
.bk-x { flex: none; width: 36px; height: 36px; border-radius: 999px; border: var(--rule-w) solid var(--rule); background: transparent; color: var(--ink-soft);
  cursor: pointer; font: 300 20px/1 var(--font-text); transition: border-color 160ms var(--ease-out), color 160ms var(--ease-out); }
.bk-x:hover { border-color: var(--ink-faint); color: var(--ink); }
.bk-slots { display: grid; gap: 10px; }
.bk-slot { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; width: 100%; padding: 18px 20px; text-align: left; cursor: pointer;
  border-radius: 12px; border: var(--rule-w) solid var(--rule); background: var(--surface-2); color: var(--ink);
  font: 380 var(--text-base)/1.3 var(--font-text); transition: border-color 160ms var(--ease-out), background 160ms var(--ease-out), transform 120ms var(--ease-out); }
.bk-slot:hover { border-color: var(--ink-faint); }
.bk-slot:active { transform: scale(0.99); }
.bk-slot .bk-time { color: var(--ink-soft); font-size: var(--text-sm); font-variant-numeric: tabular-nums; white-space: nowrap; }
.bk-slot[aria-pressed="true"] { border-color: var(--accent); background: color-mix(in oklab, var(--accent) 9%, var(--surface-2)); }
.bk-slot[aria-pressed="true"] .bk-time { color: var(--ink); }
.bk-form { margin-top: 26px; padding-top: 24px; border-top: var(--rule-w) solid var(--rule); animation: bk-fade 220ms var(--ease-out); }
.bk-form label { display: block; font-size: var(--text-sm); color: var(--ink-soft); margin-bottom: 8px; }
.bk-form label b { color: var(--ink); font-weight: 500; }
.bk-row { display: flex; gap: 10px; }
.bk-row input { flex: 1; min-width: 0; height: 52px; padding: 0 16px; border-radius: 12px; border: var(--rule-w) solid var(--rule);
  background: var(--canvas); color: var(--ink); font: 380 var(--text-base) var(--font-text); }
.bk-row input::placeholder { color: var(--ink-faint); }
.bk-row input:focus { outline: none; border-color: var(--accent); }
.bk-send { flex: none; height: 52px; padding: 0 22px; border-radius: 999px; border: 0; background: var(--ink); color: var(--canvas); cursor: pointer;
  display: inline-flex; align-items: center; gap: 10px; font: 500 var(--text-sm) var(--font-text); transition: transform 120ms var(--ease-out), opacity 160ms; }
.bk-send .sq { width: 7px; height: 7px; background: var(--accent); }
.bk-send:active { transform: scale(0.97); }
.bk-send[data-busy] { opacity: 0.6; }
.bk-err { min-height: 1.4em; margin: 10px 0 0; font-size: var(--text-sm); color: var(--accent); }
.bk-note { margin: 6px 0 0; font-size: 0.75rem; color: var(--ink-faint); }
.bk-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.bk-b { text-align: left; }
.bk-b .mark-sq { width: 12px; height: 12px; background: var(--accent); margin-bottom: 28px; }
.bk-b h2 { margin: 0 0 12px; font-family: var(--font-display); font-weight: 300; font-size: clamp(1.7rem, 1.2rem + 1.6vw, 2.3rem); letter-spacing: -0.025em; }
.bk-b p { margin: 0 0 6px; color: var(--ink-soft); }
.bk-b p b { color: var(--ink); font-weight: 500; }
.bk-b button { margin-top: 28px; }
html.bk-open { overflow: hidden; }
@media (max-width: 520px) {
  .bk-actions { flex-direction: column; align-items: stretch; }
  .bk-more { align-self: flex-start; }
  .bk-send { justify-content: center; }
  .bk-slot { flex-direction: column; gap: 4px; }
}
@media (prefers-reduced-motion: reduce) { #book-dialog[open], #book-dialog[open]::backdrop, .bk-form { animation: none; } }

.bk-extra { display: grid; gap: 8px; margin-top: 8px; }
.bk-extra:empty { display: none; }
.bk-extra input { height: 52px; padding: 0 16px; border-radius: 12px; border: var(--rule-w) solid var(--rule); background: var(--canvas); color: var(--ink); font: 380 var(--text-base) var(--font-text); }
.bk-extra input:focus { outline: none; border-color: var(--accent); }
.bk-actions { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-top: 14px; }
.bk-more { margin-top: 0; padding: 0; border: 0; background: none; color: var(--ink-soft); font: 500 var(--text-sm) var(--font-text); cursor: pointer; text-decoration: underline; text-decoration-color: var(--rule); text-underline-offset: 4px; }
.bk-more:hover { color: var(--ink); text-decoration-color: var(--accent); }