.bk {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, 0.85fr);
  gap: 22px;
  align-items: start;
}
.bk.is-done { grid-template-columns: 1fr; }
.bk-cal-head, .bk-side { min-width: 0; }
.bk-cal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
}
.bk-month {
  margin: 0;
  font-family: var(--font);
  font-weight: 750;
  font-size: 16px;
  color: var(--navy);
  text-transform: capitalize;
}
.bk-nav {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--navy);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}
.bk-nav:disabled { opacity: 0.35; cursor: default; }
.bk-weekdays, .bk-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 4px;
}
.bk-weekdays {
  margin-bottom: 4px;
  color: #8aa0c2;
  font-size: 11px;
  font-weight: 700;
  text-align: center;
}
.bk-day-btn {
  aspect-ratio: 1;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--navy);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.bk-day-btn:hover { background: var(--sky); }
.bk-day-btn.is-selected { background: var(--blue); color: #fff; }
.bk-day-btn.is-today:not(.is-selected) { box-shadow: inset 0 0 0 1.5px #9ec0ef; }
.bk-day-btn:disabled { color: #d3e0f2; cursor: default; background: transparent; }
.bk-day-btn.is-out { visibility: hidden; }
.bk-duration {
  margin: 0 0 4px;
  font-family: var(--font);
  font-weight: 750;
  font-size: 18px;
  color: var(--navy);
}
.bk-kicker {
  margin: 0 0 8px;
  color: var(--blue);
  font-family: var(--font);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.bk-day, .bk-chosen {
  margin: 0 0 10px;
  color: var(--navy);
  font-family: var(--font);
  font-weight: 700;
}
.bk-slots {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  max-height: 320px;
  overflow: auto;
}
.bk-slot {
  border: 1px solid #d7e5f8;
  background: #fff;
  color: var(--navy);
  border-radius: 999px;
  min-height: 40px;
  padding: 8px 6px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.bk-slot:hover, .bk-slot.is-selected {
  border-color: var(--blue);
  background: #f3f8ff;
  color: var(--blue);
}
.bk-note {
  margin-top: 14px;
  display: grid;
  gap: 8px;
}
.bk-offer {
  display: flex;
  align-items: center;
  gap: 12px;
}
.bk-offer img {
  width: 72px;
  height: 72px;
  flex: none;
  object-fit: cover;
  object-position: center 18%;
  border-radius: 50%;
}
.bk-note p {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.45;
}
.bk-note a { color: var(--blue); font-weight: 650; }
.bk-form { display: grid; gap: 12px; }
.bk-form[hidden],
.bk-done[hidden],
#bk-slots-wrap[hidden],
.bk-cal[hidden] { display: none !important; }
.bk-form textarea {
  width: 100%;
  resize: vertical;
  min-height: 88px;
  font: inherit;
  font-size: 16px;
  color: var(--navy);
  background: #fff;
  border: 1px solid #d7e5f8;
  border-radius: 10px;
  padding: 9px 12px;
}
.bk-form textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(21, 99, 232, 0.12); }
.bk-form .field label span { font-weight: 500; color: #8aa0c2; }
.bk-captcha-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.bk-captcha-row img {
  width: 180px;
  height: 64px;
  flex: none;
  border: 1px solid #d7e5f8;
  border-radius: 10px;
  background: #f4f8ff;
}
.bk-captcha-refresh { flex: none; }
.bk-captcha-row input { flex: 1 1 120px; min-width: 0; letter-spacing: 0.12em; text-transform: uppercase; }
.bk-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.bk-status { margin: 10px 0 0; font-size: 13.5px; color: var(--navy); }
.bk-status:empty { display: none; }
.bk-status.is-error { color: #9f1239; }
.bk-done h3 {
  margin: 0 0 8px;
  font-size: 22px;
  color: var(--navy);
}
.bk-done p { margin: 0 0 8px; color: var(--muted); }
.bk-meet {
  display: inline-flex;
  margin-top: 8px;
}

@media (max-width: 720px) {
  .bk { grid-template-columns: 1fr; gap: 16px; }
  .bk-slots { grid-template-columns: repeat(3, minmax(0, 1fr)); max-height: none; }
  .bk-form .field input { font-size: 16px; }
}