:root {
  --ka-control-bg: #fff;
  --ka-control-text: #213027;
  --ka-control-muted: #748078;
  --ka-control-border: #cdd8d0;
  --ka-control-hover: #f1f7f3;
  --ka-control-accent: #138a52;
  --ka-control-focus: rgba(19, 138, 82, .14);
  --ka-control-shadow: 0 12px 32px rgba(25, 52, 36, .16);
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.ka-select,
.ka-date {
  position: relative;
  display: inline-flex;
  width: 100%;
  min-width: 0;
  vertical-align: middle;
}

.ka-native-select,
.ka-native-date {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: 0 !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
  border: 0 !important;
  opacity: 0 !important;
}

.ka-select-trigger,
.ka-date-trigger {
  width: 100%;
  min-height: 42px;
  padding: 9px 11px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border: 1px solid var(--ka-control-border);
  border-radius: 7px;
  background: var(--ka-control-bg);
  color: var(--ka-control-text);
  font: inherit;
  text-align: left;
  cursor: pointer;
  outline: none;
  transition: border-color .15s, box-shadow .15s, background .15s;
}

.ka-select-trigger:hover,
.ka-date-trigger:hover { border-color: #aebdb3; background: #fbfdfb; }
.ka-select-trigger:focus-visible,
.ka-select-trigger.open,
.ka-date-trigger:focus-visible,
.ka-date-trigger.active {
  border-color: var(--ka-control-accent);
  box-shadow: 0 0 0 3px var(--ka-control-focus);
}
.ka-select-trigger:disabled,
.ka-date-trigger:disabled { cursor: not-allowed; opacity: .58; background: #f3f5f3; }

.ka-select-value,
.ka-date-value {
  min-width: 0;
  overflow: hidden;
  color: inherit;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.ka-select-arrow { flex: 0 0 auto; color: var(--ka-control-muted); font-size: 16px; transition: transform .15s; }
.ka-select-trigger.open .ka-select-arrow { transform: rotate(180deg); }
.ka-date-icon { flex: 0 0 auto; color: var(--ka-control-accent); font-size: 13px; }
.ka-date-icon svg {
  width: 16px;
  height: 16px;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.ka-select-menu {
  position: fixed;
  z-index: 4100;
  max-height: 280px;
  padding: 5px;
  overflow-y: auto;
  border: 1px solid var(--ka-control-border);
  border-radius: 9px;
  background: var(--ka-control-bg);
  box-shadow: var(--ka-control-shadow);
}
.ka-select-option {
  width: 100%;
  min-height: 36px;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--ka-control-text);
  font: inherit;
  text-align: left;
  cursor: pointer;
  outline: none;
}
.ka-select-option:hover,
.ka-select-option:focus-visible { background: var(--ka-control-hover); }
.ka-select-option.selected {
  background: #e4f3e9;
  color: #0f6b40;
  font-weight: 700;
}
.ka-select-option.selected::after { content: "✓"; margin-left: auto; }
.ka-select-option:disabled { cursor: not-allowed; opacity: .48; }

.custom-calendar-overlay {
  position: fixed;
  inset: 0;
  z-index: 3990;
  background: rgba(12, 35, 23, .08);
}
.custom-calendar {
  position: fixed;
  z-index: 4000;
  width: 292px;
  padding: 14px;
  border: 1px solid var(--ka-control-border);
  border-radius: 12px;
  background: var(--ka-control-bg);
  box-shadow: var(--ka-control-shadow);
  color: var(--ka-control-text);
  font-family: inherit;
  user-select: none;
}
.cal-header { margin-bottom: 10px; display: flex; align-items: center; justify-content: space-between; }
.cal-title {
  padding: 5px 8px; border: 0; border-radius: 6px;
  background: transparent; color: var(--ka-control-text);
  font: inherit; font-size: 13px; font-weight: 700; cursor: pointer;
}
.cal-title:hover, .cal-title:focus-visible { background: var(--ka-control-hover); outline: none; }
.cal-nav {
  width: 30px; height: 30px; display: grid; place-items: center;
  border: 1px solid var(--ka-control-border); border-radius: 6px;
  background: #fff; color: var(--ka-control-muted); font: inherit; cursor: pointer;
}
.cal-nav:hover, .cal-nav:focus-visible { border-color: var(--ka-control-accent); color: var(--ka-control-accent); outline: none; }
.cal-weekdays, .cal-days { display: grid; grid-template-columns: repeat(7, 1fr); }
.cal-weekdays { margin-bottom: 4px; color: var(--ka-control-muted); font-size: 10px; font-weight: 700; text-align: center; }
.cal-weekdays span { padding: 4px 0; }
.cal-days { gap: 2px; }
.cal-day {
  height: 32px; display: grid; place-items: center;
  border: 0; border-radius: 7px; background: transparent;
  color: var(--ka-control-text); font: inherit; font-size: 12px; cursor: pointer; outline: none;
}
.cal-day:hover, .cal-day:focus-visible { background: var(--ka-control-hover); }
.cal-day.other-month { color: #a0aaa3; }
.cal-day.today { box-shadow: inset 0 0 0 1px var(--ka-control-accent); color: var(--ka-control-accent); font-weight: 700; }
.cal-day.selected { background: var(--ka-control-accent); color: #fff; font-weight: 700; }
.cal-time {
  margin-top: 10px; padding-top: 10px; display: flex; align-items: center; justify-content: center; gap: 6px;
  border-top: 1px solid #e2e8e3;
}
.cal-time label { color: var(--ka-control-muted); font-size: 11px; }
.cal-time-input {
  width: 48px; min-height: 34px; padding: 5px;
  border: 1px solid var(--ka-control-border); border-radius: 6px;
  background: #fff; color: var(--ka-control-text); font: inherit; text-align: center; outline: none;
}
.cal-time-input:focus { border-color: var(--ka-control-accent); box-shadow: 0 0 0 3px var(--ka-control-focus); }
.cal-time-sep { font-weight: 700; }
.cal-actions { margin-top: 12px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.cal-actions.has-clear { grid-template-columns: repeat(3, 1fr); }
.cal-actions button {
  min-height: 36px; border: 1px solid var(--ka-control-border); border-radius: 7px;
  background: #fff; color: var(--ka-control-text); font: inherit; font-weight: 700; cursor: pointer;
}
.cal-actions button[data-action="apply"] { border-color: var(--ka-control-accent); background: var(--ka-control-accent); color: #fff; }
.cal-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; }
.cal-grid-item {
  min-height: 38px; border: 0; border-radius: 7px; background: transparent;
  color: var(--ka-control-text); font: inherit; cursor: pointer; outline: none;
}
.cal-grid-item:hover, .cal-grid-item:focus-visible { background: var(--ka-control-hover); }
.cal-grid-item.selected { background: var(--ka-control-accent); color: #fff; font-weight: 700; }

.period-row .custom-date-input {
  min-height: 38px;
  border-color: var(--ka-control-border);
  border-radius: 7px;
}

@media (max-width: 560px) {
  .custom-calendar {
    position: fixed;
    width: min(340px, calc(100vw - 24px));
    left: 50% !important;
    top: 50% !important;
    transform: translate(-50%, -50%);
  }
  .ka-select-menu { max-height: min(320px, 55vh); }
}

@media (prefers-reduced-motion: reduce) {
  .ka-select-trigger, .ka-date-trigger, .ka-select-arrow { transition: none; }
}