/*
 * FLDatePicker - Lightweight Date & Time Picker
 * Version: 1.0.0
 * Author: FRONTLENS LLC
 * No dependencies. Themeable via CSS custom properties.
 */

/* ── Theme tokens ─────────────────────────────────── */
.fl-picker {
  --fl-primary: #37b24d;
  --fl-primary-hover: #2f9e44;
  --fl-primary-light: #e6f9ed;
  --fl-bg: #ffffff;
  --fl-text: #333333;
  --fl-text-muted: #999999;
  --fl-border: none;
  --fl-radius: 4px;
  --fl-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  --fl-error: #e03131;
  --fl-today-outline: #37b24d;
  --fl-disabled: #ccc;
  --fl-font: inherit;
}

/* ── Wrapper ──────────────────────────────────────── */
.fl-picker {
  position: relative;
  display: block;
  font-family: var(--fl-font);
}

/* ── Input ────────────────────────────────────────── */
.fl-picker-input {
  display: block;
  width: 100%;
  box-sizing: border-box;
  padding: 20px;
  border-radius: var(--fl-radius);
  border: 1px solid var(--fl-border);
  background: #fff;
  color: var(--fl-text);
  font-size: 16px;
  line-height: 1.4;
  cursor: pointer;
  caret-color: transparent;
  transition:
    border-color 0.18s ease,
    box-shadow 0.18s ease;
}

.fl-picker-input::placeholder {
  color: var(--fl-text-muted);
}

.fl-picker-input:focus,
.fl-picker-input:focus-visible {
  outline: none;
  border: none;
  box-shadow: none;
}

/* Programmatic focus when overlay is open */
.fl-picker.fl-picker--focused .fl-picker-input {
  border-color: var(--fl-primary);
  box-shadow: 0 0 6px rgba(55, 178, 77, 1);
}

.fl-picker-input:hover {
  border-color: var(--fl-primary);
  box-shadow: 0 0 6px rgba(55, 178, 77, 1);
}

/* Error state */
.fl-picker.fl-picker--error .fl-picker-input {
  border: 2px solid var(--fl-error) !important;
  box-shadow: 0 0 0 2px rgba(224, 49, 49, 0.15) !important;
}

.fl-picker-error {
  display: none;
  font-size: 13px;
  color: var(--fl-error);
  margin-top: 4px;
  line-height: 1.3;
}

.fl-picker.fl-picker--error .fl-picker-error {
  display: block;
}

/* ── Popover (shared) ─────────────────────────────── */
.fl-picker-popover {
  position: absolute;
  left: 0;
  top: 100%;
  margin-top: 6px;
  z-index: 9999;
  background: var(--fl-bg);
  border: 1px solid var(--fl-border);
  border-radius: var(--fl-radius);
  box-shadow: var(--fl-shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition:
    opacity 0.18s ease,
    transform 0.18s ease,
    visibility 0.18s;
  overflow: hidden;
}

.fl-picker-popover.fl-picker-popover--open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Flip above input when no space below */
.fl-picker-popover.fl-picker-popover--above {
  top: auto;
  bottom: 100%;
  margin-top: 0;
  margin-bottom: 6px;
  transform: translateY(-4px);
}

.fl-picker-popover.fl-picker-popover--above.fl-picker-popover--open {
  transform: translateY(0);
}

/* ── Calendar (date picker) ───────────────────────── */
.fl-calendar {
  width: 300px;
  padding: 12px;
  box-sizing: border-box;
}

.fl-calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.fl-calendar-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--fl-text);
  user-select: none;
}

.fl-calendar-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--fl-text);
  font-size: 18px;
  cursor: pointer;
  transition: background 0.15s;
  line-height: 1;
  padding: 0;
}

.fl-calendar-nav:hover:not(:disabled) {
  background: var(--fl-primary-light);
}

.fl-calendar-nav:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

.fl-calendar-nav:focus-visible {
  outline: 2px solid var(--fl-primary);
  outline-offset: 2px;
}

/* Day-of-week labels */
.fl-calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  margin-bottom: 4px;
}

.fl-calendar-weekday {
  font-size: 12px;
  font-weight: 600;
  color: var(--fl-text-muted);
  padding: 4px 0;
  user-select: none;
}

/* Day grid */
.fl-calendar-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}

.fl-calendar-day {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  aspect-ratio: 1;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--fl-text);
  font-size: 14px;
  cursor: pointer;
  transition:
    background 0.15s,
    color 0.15s;
  padding: 0;
  min-height: 36px;
}

.fl-calendar-day:hover {
  background: var(--fl-primary-light);
}

.fl-calendar-day:focus-visible {
  outline: 2px solid var(--fl-primary);
  outline-offset: -2px;
}

/* Empty filler cells */
.fl-calendar-day--empty {
  cursor: default;
  pointer-events: none;
}

/* Today */
.fl-calendar-day--today {
  font-weight: 700;
  box-shadow: inset 0 0 0 2px var(--fl-today-outline);
}

/* Selected */
.fl-calendar-day--selected {
  background: var(--fl-primary) !important;
  color: #fff !important;
  font-weight: 600;
}

/* Disabled */
.fl-calendar-day--disabled {
  color: var(--fl-disabled);
  pointer-events: none;
  opacity: 0.45;
}

/* ── Time list ────────────────────────────────────── */
.fl-timelist {
  width: 220px;
  max-height: 280px;
  overflow-y: auto;
  padding: 6px;
  box-sizing: border-box;
  scrollbar-width: thin;
}

.fl-timelist::-webkit-scrollbar {
  width: 5px;
}

.fl-timelist::-webkit-scrollbar-thumb {
  background: var(--fl-border);
  border-radius: 4px;
}

.fl-timelist-option {
  display: block;
  width: 100%;
  padding: 10px 14px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--fl-text);
  font-size: 14px;
  text-align: left;
  cursor: pointer;
  transition:
    background 0.15s,
    color 0.15s;
  min-height: 44px;
  box-sizing: border-box;
  line-height: 1.5;
}

.fl-timelist-option:hover {
  background: var(--fl-primary-light);
}

.fl-timelist-option:focus-visible {
  outline: 2px solid var(--fl-primary);
  outline-offset: -2px;
}

.fl-timelist-option--selected {
  background: var(--fl-primary) !important;
  color: #fff !important;
  font-weight: 600;
}

.fl-timelist-option--disabled,
.fl-timelist-option:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.fl-timelist-option--disabled:hover,
.fl-timelist-option:disabled:hover {
  background: transparent;
}

/* ── Responsive ───────────────────────────────────── */
@media (max-width: 576px) {
  .fl-calendar {
    width: 100%;
    min-width: 260px;
  }

  .fl-timelist {
    width: 100%;
    min-width: 180px;
  }

  .fl-picker-popover {
    left: 0;
    right: 0;
  }
}