/*
 * Kwalee BI — Custom date range picker styles
 *
 * No react-dates. The calendar is pure HTML buttons rendered by Python.
 * All colour references use only theme tokens from theme.css.
 *
 * Story 3.2: Date Picker Filter
 */

/* ─── Wrapper ─── */
.date-picker__wrapper {
  position: relative;
  display: inline-flex;
  flex-shrink: 0;
}

/* ─── Icon in chip ─── */
.date-picker__icon {
  font-size: 0.875rem;
  margin-right: 4px;
  line-height: 1;
}

/* ─── Panel ─── */
.date-picker__panel {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  z-index: 50;
  display: flex;
  flex-direction: row;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 25px 50px -12px oklch(0% 0 0 / 0.55);
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  /* Height anchor: presets sidebar is capped to this so it never
     drives the panel taller than the month calendar. */
  --preset-cap: 420px;

  /* ── Reference palette (App.tsx) scoped to the picker only ──
     These custom-property overrides repaint the entire picker in the
     exact colours of the supplied React component without affecting any
     other surface in the app theme. */
  --accent: oklch(83.57% 0.1708 89.46);
  --accent-hover: oklch(87.73% 0.1757 92.69);
  --accent-text: oklch(17.76% 0 0);
  --accent-alpha-08: oklch(83.57% 0.1708 89.46 / 0.08);
  --accent-alpha-25: oklch(83.57% 0.1708 89.46 / 0.25);
  --accent-alpha-30: oklch(83.57% 0.1708 89.46 / 0.3);
  --accent-alpha-45: oklch(83.57% 0.1708 89.46 / 0.45);
  --bg-elevated: oklch(21.78% 0 0);
  --bg-surface: oklch(26.03% 0 0);
  --bg-hover: oklch(26.45% 0 0);
  --border-color: oklch(28.5% 0 0);
  --text-primary: oklch(93.1% 0 0);
  --text-secondary: oklch(84.52% 0 0);
  --text-muted: oklch(51.03% 0 0);
  /* Range band: a single layer tuned to match App.tsx's stacked fill. */
  --dp-range: oklch(83.57% 0.1708 89.46 / 0.15);
}

.date-picker__panel--closed {
  display: none;
}

.date-picker__panel--open {
  display: flex;
}

/* ─── Calendar section (right) ─── */
.date-picker__calendar {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 0;
  min-width: 0;
  flex: 1;
  /* Ensure the calendar is always at least as tall as the preset cap so the
     panel height is never driven by the preset sidebar. */
  min-height: var(--preset-cap);
}

/* ─── Navigation bar ─── */
.cal-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 4px;
  padding: 0;
  margin-bottom: 16px;
}

.cal-nav__spacer {
  flex: 1 1 auto;
}

.cal-nav-btn {
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--text-secondary);
  line-height: 1;
  width: 28px;
  height: 28px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1px;
  padding: 0;
  transition:
    background-color 0.12s ease,
    color 0.12s ease,
    border-color 0.12s ease;
}

.cal-nav-btn:hover {
  background: transparent;
  border-color: transparent;
  color: var(--text-primary);
}

/* CSS chevron arrows (matches site .filter-chip__chevron convention) */
.cal-chevron {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
}

.cal-chevron--left {
  transform: rotate(135deg);
}

.cal-chevron--right {
  transform: rotate(-45deg);
}

.cal-nav-btn--double .cal-chevron {
  margin: 0 -2px;
}

.cal-nav-select {
  min-width: 118px;
  font-size: 0.8125rem;
}

.cal-nav-select--year {
  min-width: 88px;
}

.cal-nav-select .Select-control {
  border-color: var(--border-color);
  background: var(--bg-surface);
  min-height: 30px;
  height: 30px;
  border-radius: 8px;
  box-shadow: none;
}

.cal-nav-select .Select-value-label,
.cal-nav-select .Select-placeholder {
  color: var(--text-secondary) !important;
  line-height: 28px;
  font-size: 0.8125rem;
  font-weight: 500;
}

.cal-nav-select .Select-input {
  height: 28px;
}

.cal-nav-select .Select-arrow-zone {
  padding-right: 6px;
}

.cal-nav-select .Select-menu-outer {
  background: var(--bg-elevated);
  border-color: var(--border-color);
}

/* ─── Two-month grid container ─── */
.cal-grid {
  display: flex;
  flex-direction: row;
  gap: 0;
}

/* ─── Single month ─── */
.cal-month {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 220px;
}

.cal-month + .cal-month {
  border-left: 1px solid var(--border-color);
  margin-left: 32px;
  padding-left: 32px;
}

.cal-month__title {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: center;
  line-height: 1.2;
  letter-spacing: 0.01em;
  margin: 0;
  padding: 0 0 10px;
  display: flex;
  justify-content: center;
  gap: 6px;
}

/* Clickable month-name / year titles (open drill pickers) */
.cal-month__title-btn {
  background: transparent;
  border: none;
  padding: 2px 4px;
  border-radius: 6px;
  font: inherit;
  color: var(--text-primary);
  cursor: pointer;
  transition:
    background-color 0.12s ease,
    color 0.12s ease;
}

.cal-month__title-btn:hover {
  background: var(--accent-alpha-08);
  color: var(--accent);
}

.cal-month__title-btn--year {
  color: var(--text-secondary);
}

/* ─── Drill pickers (month / decade grids) ─── */
.cal-drill {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
  min-width: 0;
}

.cal-drill__header {
  display: flex;
  justify-content: center;
  padding: 2px 0 4px;
}

.cal-drill__title {
  background: transparent;
  border: none;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  padding: 4px 10px;
  border-radius: 6px;
  transition:
    background-color 0.12s ease,
    color 0.12s ease;
}

.cal-drill__title:hover {
  background: var(--accent-alpha-08);
  color: var(--accent);
}

.cal-drill__title--static {
  cursor: default;
}

.cal-drill__title--static:hover {
  background: transparent;
  color: var(--text-primary);
}

.cal-drill__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  flex: 1;
  align-content: center;
}

.cal-drill__cell {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition:
    background-color 0.12s ease,
    color 0.12s ease,
    border-color 0.12s ease;
}

button.cal-drill__cell:hover {
  background: var(--accent-alpha-08);
  border-color: var(--accent-alpha-30);
  color: var(--text-primary);
}

.cal-drill__cell--muted {
  color: var(--text-muted);
}

.cal-drill__cell--disabled {
  color: var(--text-muted);
  opacity: 0.28;
  cursor: not-allowed;
  pointer-events: none;
}

/* ─── Day-of-week headers ─── */
.cal-day-header-row {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  column-gap: 2px;
  margin-bottom: 4px;
}

.cal-day-header {
  font-family: var(--font-body);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: center;
  padding: 0 0 4px;
}

/* ─── Day cells grid ─── */
.cal-grid__cells {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  column-gap: 2px;
  row-gap: 2px;
}

/* Base day cell */
.cal-day {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  border-radius: 0;
  width: 100%;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition:
    background-color 0.12s ease,
    color 0.12s ease;
  padding: 0;
  margin: 0;
}

button.cal-day:not(.cal-day--in-range):not(.cal-day--start):not(.cal-day--end):hover {
  background: var(--accent-alpha-08);
  border-radius: 6px;
}

/* Empty leading cell */
.cal-day--empty {
  visibility: hidden;
  pointer-events: none;
}

/* Today */
.cal-day--today {
  font-weight: 700;
  color: var(--text-primary);
  outline: 1px solid var(--accent);
  outline-offset: -1px;
  border-radius: 6px;
}

/* Disabled / out of range */
.cal-day--disabled {
  color: var(--text-muted);
  opacity: 0.28;
  cursor: not-allowed;
  pointer-events: none;
  border-radius: 0;
}

/* Selected start: filled accent circle */
.cal-day--start {
  background: var(--accent) !important;
  color: var(--accent-text) !important;
  border-radius: 6px 0 0 6px;
  font-weight: 700;
}

/* No end yet: full rounded */
.cal-day--start:only-of-type,
.cal-day--start.cal-day--end {
  border-radius: 6px !important;
}

/* Selected end */
.cal-day--end {
  background: var(--accent) !important;
  color: var(--accent-text) !important;
  border-radius: 0 6px 6px 0;
  font-weight: 700;
}

/* Days in range */
.cal-day--in-range {
  background: var(--dp-range);
  color: var(--text-primary);
  border-radius: 0;
}

/* ─── Preset sidebar (left) ─── */
.date-picker__presets {
  display: flex;
  flex-direction: column;
  padding: 16px 0 14px;
  min-width: 160px;
  flex-shrink: 0;
  background: oklch(20.02% 0 0);
  border-right: 1px solid var(--border-color);
  /* Cap the sidebar to the panel height anchor so it does not expand the
     picker beyond the month calendar height. */
  max-height: var(--preset-cap);
  overflow-y: hidden;
}

/* Scrollable preset button list — sits between heading and footer */
.date-picker__presets-list {
  flex: 1 1 0;
  min-height: 0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
  /* Thin custom scrollbar so it doesn't widen the sidebar */
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

/* ─── Calendar footer: range inputs (From → To) + Cancel / Apply ─── */
.date-picker__cal-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 12px 0 0;
  border-top: 1px solid var(--border-color);
}

.date-picker__range-inputs {
  display: flex;
  align-items: center;
  gap: 8px;
}

.date-picker__cal-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.date-picker__field-arrow {
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1;
}

.date-picker__input-label {
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.date-picker__last-x-label {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: normal;
  color: var(--text-muted);
  text-transform: none;
}

.date-picker__date-input {
  width: 100%;
  height: 32px;
  box-sizing: border-box;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: var(--bg-surface);
  color: var(--text-secondary);
  padding: 0 12px;
  line-height: 30px;
  font-size: 0.75rem;
  font-family: var(--font-mono, ui-monospace, monospace);
  font-weight: 400;
}

.date-picker__range-inputs .date-picker__date-input {
  width: 120px;
}

.date-picker__date-input:focus {
  outline: none;
  border-color: var(--accent-alpha-45);
  box-shadow: 0 0 0 3px var(--accent-alpha-08);
}

.date-picker__date-input:disabled {
  opacity: 0.6;
  background: var(--bg-hover);
}

.date-picker__fixed-toggle {
  display: inline-flex;
}

.date-picker__fixed-toggle .dash-checklist {
  display: inline-flex;
}

.date-picker__fixed-toggle label {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-left: 2px;
  font-size: 0.75rem;
  font-weight: 400;
  color: oklch(56.93% 0 0);
  cursor: pointer;
}

.date-picker__fixed-toggle input[type="checkbox"] {
  appearance: none;
  width: 16px;
  height: 16px;
  margin: 0;
  border: 1.5px solid oklch(44.95% 0 0);
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
  flex-shrink: 0;
}

.date-picker__fixed-toggle input[type="checkbox"]:checked {
  background: var(--accent);
  border-color: var(--accent);
}

/* Today / Yesterday — clean segmented control */
.date-picker__fixed-offset {
  display: flex;
  overflow: hidden;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  width: 100%;
}

.date-picker__fixed-offset label {
  position: relative;
  margin: 0;
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 4px 0;
  border-radius: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 1 1 0;
  cursor: pointer;
  transition:
    background-color 0.12s ease,
    color 0.12s ease;
}

/* Override Dash's inline-radio right margin (.dash-radioitems-inline) so the
   active segment fills flush to the rounded container edge. */
.date-picker__fixed-offset label.dash-radioitems-inline {
  margin: 0;
}

.date-picker__fixed-offset label:hover {
  color: var(--text-primary);
}

.date-picker__fixed-offset input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  margin: 0;
  pointer-events: none;
}

.date-picker__fixed-offset label:has(input[type="radio"]:checked) {
  background: var(--accent);
  color: var(--accent-text);
}

.date-picker__input-help {
  margin: -2px 0 10px;
  font-size: 0.6875rem;
  line-height: 1.35;
  color: var(--text-muted);
}

.date-picker__last-x-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0;
}

/* ─── Sidebar custom-range controls (pinned below the preset list) ─── */
.date-picker__sidebar-controls {
  margin-top: auto;
  padding: 12px 12px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid var(--border-color);
}

.date-picker__sidebar-heading {
  font-family: var(--font-body);
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin: 0;
}

.date-picker__fixed-offset-row {
  display: flex;
  align-items: center;
}

.date-picker__fixed-toggle-row {
  display: flex;
  align-items: center;
  margin-top: 2px;
}

.date-picker__last-x-input {
  width: 56px;
  height: 26px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: var(--bg-surface);
  color: var(--text-primary);
  padding: 2px 4px;
  font-size: 0.75rem;
  font-weight: 600;
  text-align: center;
}

.date-picker__last-x-btn {
  width: 100%;
  padding: 6px 0;
  margin-top: 2px;
  border: none;
  border-radius: 4px;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition:
    background-color 0.12s ease,
    opacity 0.12s ease;
}

.date-picker__last-x-btn:hover {
  background: var(--accent-hover);
}

.date-picker__presets-heading {
  font-family: var(--font-body);
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin: 0 0 8px;
  padding: 0 16px;
}

.date-picker__preset-btn {
  display: block;
  width: 100%;
  padding: 6px 16px;
  border: none;
  border-left: 2px solid transparent;
  border-radius: 0;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  text-align: left;
  cursor: pointer;
  background: transparent;
  color: var(--text-secondary);
  transition:
    background-color 0.12s ease,
    color 0.12s ease;
}

.date-picker__preset-btn:hover {
  background: var(--accent-alpha-08);
  color: var(--text-primary);
}

.date-picker__preset-btn--active {
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-alpha-08);
  border-left-color: var(--accent);
}

/* ─── Footer: Close + Apply ─── */
.date-picker__presets-footer {
  margin-top: auto;
  padding-top: 12px;
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.date-picker__close-btn {
  padding: 6px 16px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  background: var(--bg-hover);
  color: var(--text-secondary);
  cursor: pointer;
  transition:
    background 0.12s ease,
    color 0.12s ease;
}

.date-picker__close-btn:hover {
  background: var(--accent-alpha-08);
  border-color: var(--accent-alpha-30);
  color: var(--text-primary);
}

.date-picker__apply-btn {
  padding: 6px 16px;
  border: none;
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  background: var(--accent);
  color: var(--accent-text);
  cursor: pointer;
  transition: opacity 0.12s ease;
}

.date-picker__apply-btn:hover {
  background: var(--accent-hover);
}

/* ─── Responsive: stack on mobile ─── */
@media (max-width: 767px) {
  .date-picker__panel {
    flex-direction: column;
    left: 0;
    right: 0;
    min-width: 320px;
    max-width: 100vw;
  }

  .cal-grid {
    flex-direction: column;
    gap: 16px;
  }

  .date-picker__presets {
    flex-direction: row;
    flex-wrap: wrap;
    min-width: unset;
    max-height: unset;
    overflow-y: visible;
    border-left: none;
    border-top: 1px solid var(--border-color);
    padding: 8px 12px;
  }

  .date-picker__presets-list {
    flex-direction: row;
    flex-wrap: wrap;
    overflow-y: visible;
    max-height: unset;
  }

  .date-picker__presets-heading,
  .date-picker__presets-footer {
    display: none;
  }

  .date-picker__preset-btn {
    flex: 0 0 auto;
    width: auto;
  }
}