/* Окно записи. Цвета и шрифты задаёт сайт через переменные --bk-*. */
.bk-open { overflow: hidden; }
.bk {
  width: 100%; max-width: 480px; max-height: 92dvh; margin: auto auto 0; padding: 0;
  border: 0; border-radius: var(--bk-radius, 20px) var(--bk-radius, 20px) 0 0;
  background: var(--bk-bg, #fff); color: var(--bk-text, #111);
  font-family: var(--bk-font, system-ui, sans-serif);
  box-shadow: 0 -20px 60px rgb(0 0 0 / 35%);
}
.bk[open] { animation: bk-up 0.35s cubic-bezier(0.16, 1, 0.3, 1); }
.bk::backdrop { background: rgb(10 10 12 / 55%); backdrop-filter: blur(4px); }
@media (min-width: 640px) { .bk { margin: auto; border-radius: var(--bk-radius, 20px); } }
@keyframes bk-up { from { transform: translateY(40px); opacity: 0; } }

.bk-sheet { position: relative; display: flex; flex-direction: column; max-height: 92dvh; }
.bk-progress { height: 4px; background: color-mix(in srgb, var(--bk-text, #111) 10%, transparent); }
.bk-progress::after {
  content: ""; display: block; height: 100%; width: var(--bk-progress, 0%);
  background: var(--bk-accent, #2563eb); transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.bk-body { overflow-y: auto; padding: 18px 18px calc(22px + env(safe-area-inset-bottom)); }
.bk-close {
  position: absolute; top: 14px; right: 14px; z-index: 1;
  width: 34px; height: 34px; border: 0; border-radius: 50%;
  background: color-mix(in srgb, var(--bk-text, #111) 8%, transparent); color: inherit; cursor: pointer;
}
.bk-head { display: flex; align-items: center; gap: 10px; margin: 2px 40px 16px 0; }
.bk-title { margin: 0; font: 700 20px/1.2 var(--bk-display, inherit); }
.bk-back {
  flex: none; width: 34px; height: 34px; border: 1px solid color-mix(in srgb, var(--bk-text, #111) 15%, transparent);
  border-radius: 50%; background: none; color: inherit; font-size: 16px; cursor: pointer;
}

.bk-list { display: flex; flex-direction: column; gap: 8px; }
.bk-option {
  display: flex; align-items: center; gap: 12px; width: 100%; padding: 14px 16px; text-align: left;
  border: 1px solid color-mix(in srgb, var(--bk-text, #111) 12%, transparent); border-radius: 14px;
  background: var(--bk-surface, transparent); color: inherit; font: inherit; cursor: pointer;
  transition: border-color 0.15s, transform 0.15s;
}
.bk-option:hover, .bk-option.is-selected { border-color: var(--bk-accent, #2563eb); }
.bk-option:active { transform: scale(0.98); }
.bk-option__main { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.bk-option__title { font-weight: 700; }
.bk-option__sub { color: var(--bk-muted, #777); font-size: 13px; }
.bk-option__aside { font-weight: 700; white-space: nowrap; color: var(--bk-accent, #2563eb); }

.bk-days { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 6px; margin: 0 -18px 14px; padding-inline: 18px; scrollbar-width: none; }
.bk-day {
  flex: none; display: flex; flex-direction: column; align-items: center; gap: 2px; width: 58px; padding: 10px 0;
  border: 1px solid color-mix(in srgb, var(--bk-text, #111) 12%, transparent); border-radius: 14px;
  background: var(--bk-surface, transparent); color: inherit; font: inherit; cursor: pointer;
}
.bk-day.is-selected { border-color: var(--bk-accent, #2563eb); background: var(--bk-accent, #2563eb); color: var(--bk-on-accent, #fff); }
.bk-day__wd, .bk-day__month { font-size: 11px; opacity: 0.75; text-transform: uppercase; letter-spacing: 0.05em; }
.bk-day__num { font-size: 20px; font-weight: 800; line-height: 1.1; }
.bk-times { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.bk-time {
  padding: 12px 0; border: 1px solid color-mix(in srgb, var(--bk-text, #111) 12%, transparent); border-radius: 12px;
  background: var(--bk-surface, transparent); color: inherit; font: 700 15px/1 var(--bk-font, inherit); cursor: pointer;
}
.bk-time:hover:not(:disabled) { border-color: var(--bk-accent, #2563eb); }
.bk-time:disabled { opacity: 0.3; text-decoration: line-through; cursor: not-allowed; }
.bk-note { grid-column: 1 / -1; color: var(--bk-muted, #777); }

.bk-form { display: flex; flex-direction: column; gap: 12px; }
.bk-summary {
  display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 0 0 4px; padding: 14px 16px;
  border-radius: 14px; background: color-mix(in srgb, var(--bk-accent, #2563eb) 10%, transparent); font-size: 14px;
}
.bk-summary dt { color: var(--bk-muted, #777); }
.bk-summary dd { margin: 0; font-weight: 700; text-align: right; }
.bk-field { display: flex; flex-direction: column; gap: 6px; }
.bk-field__label { font-size: 13px; font-weight: 700; color: var(--bk-muted, #777); }
.bk-input {
  width: 100%; padding: 13px 14px; border: 1px solid color-mix(in srgb, var(--bk-text, #111) 15%, transparent);
  border-radius: 12px; background: var(--bk-surface, transparent); color: inherit; font: 500 16px/1.3 var(--bk-font, inherit);
}
.bk-input:focus { outline: 2px solid var(--bk-accent, #2563eb); outline-offset: 1px; }
.bk-error { margin: 0; color: #e5484d; font-weight: 600; font-size: 14px; }
.bk-submit {
  width: 100%; min-height: 52px; margin-top: 4px; border: 0; border-radius: 14px;
  background: var(--bk-accent, #2563eb); color: var(--bk-on-accent, #fff);
  font: 800 16px/1 var(--bk-font, inherit); cursor: pointer; transition: transform 0.15s;
}
.bk-submit:active { transform: scale(0.98); }

.bk-done { text-align: center; padding: 14px 4px 0; }
.bk-check {
  width: 76px; height: 76px; margin: 0 auto 16px; border-radius: 50%;
  background: var(--bk-accent, #2563eb); position: relative; animation: bk-pop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.bk-check::after {
  content: ""; position: absolute; left: 27px; top: 18px; width: 18px; height: 32px;
  border: solid var(--bk-on-accent, #fff); border-width: 0 5px 5px 0; transform: rotate(45deg);
}
@keyframes bk-pop { from { transform: scale(0.3); opacity: 0; } }
.bk-done__title { margin: 0 0 8px; font: 800 22px/1.2 var(--bk-display, inherit); }
.bk-done__text { margin: 0 0 12px; color: var(--bk-muted, #777); }
.bk-demo { margin: 0 0 16px; font-size: 12px; color: var(--bk-muted, #777); opacity: 0.8; }

.reveal-on [data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity 0.7s, transform 0.7s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal-on [data-reveal].is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal-on [data-reveal] { opacity: 1; transform: none; transition: none; }
  .bk[open], .bk-check { animation: none; }
}

.fab { transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1); }
.fab:not(.is-shown) { transform: translateY(calc(100% + 40px)); }