/*!
 * Zenith Form Style — datepicker
 * ---------------------------------------------------------------------------
 * Styles for zt-datepicker.js (Shamsi/Jalali and Gregorian). Load after
 * zt-forms.css; it reuses the same tokens, so re-theming the forms re-themes
 * the calendar with no extra work.
 */

:root {
  --zt-dp-width: 292px;
  --zt-dp-cell: 36px;
  --zt-dp-gap: 2px;
  --zt-dp-radius: var(--zt-radius);
  --zt-dp-bg: var(--zt-bg);
  --zt-dp-padding: 12px;

  --zt-dp-head-color: var(--zt-label-color);
  --zt-dp-weekday-color: var(--zt-help-color);
  --zt-dp-day-color: var(--zt-text);
  --zt-dp-day-hover-bg: color-mix(in srgb, var(--zt-accent) 10%, transparent);
  --zt-dp-today-border: var(--zt-accent);
  --zt-dp-selected-bg: var(--zt-accent);
  --zt-dp-selected-color: var(--zt-on-accent);
  --zt-dp-outside-color: var(--zt-text-disabled);
  --zt-dp-disabled-color: var(--zt-text-disabled);
  --zt-dp-holiday-color: var(--zt-error);

  --zt-dp-icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='none' stroke='%239e9e9e' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='2.9' y='4.2' width='14.2' height='13' rx='2.4'/%3E%3Cpath d='M2.9 8.2h14.2M6.7 2.5v3.2M13.3 2.5v3.2'/%3E%3C/svg%3E");
}

@supports not (color: color-mix(in srgb, red 50%, transparent)) {
  :root { --zt-dp-day-hover-bg: rgba(47, 111, 237, .1); }
}

/* --- Panel ---------------------------------------------------------------- */

/* The panel is sized in tokens, so it needs border-box like the rest. */
.zt-dp,
.zt-dp *,
.zt-dp *::before,
.zt-dp *::after {
  box-sizing: border-box;
}

.zt-dp {
  position: absolute;
  z-index: 70;
  inline-size: var(--zt-dp-width);
  padding: var(--zt-dp-padding);
  font-family: var(--zt-font-family);
  font-size: var(--zt-font-size);
  line-height: 1.4;
  color: var(--zt-dp-day-color);
  background: var(--zt-dp-bg);
  border: var(--zt-border-width) solid var(--zt-border);
  border-radius: var(--zt-dp-radius);
  box-shadow: var(--zt-dropdown-shadow);
  user-select: none;
}
.zt-dp[hidden] { display: none; }

/* Jalali calendars are laid out right-to-left even on an LTR page. */
.zt-dp[data-calendar="jalali"] { direction: rtl; }
.zt-dp[data-calendar="gregorian"] { direction: ltr; }

/* --- Header --------------------------------------------------------------- */

.zt-dp__header {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-block-end: 10px;
}

.zt-dp__nav {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  inline-size: 30px;
  block-size: 30px;
  padding: 0;
  font: inherit;
  color: var(--zt-help-color);
  background: none;
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color var(--zt-transition), color var(--zt-transition);
}
.zt-dp__nav:hover:not(:disabled) { background: var(--zt-dp-day-hover-bg); color: var(--zt-accent); }
.zt-dp__nav:disabled { opacity: .35; cursor: not-allowed; }
.zt-dp__nav:focus-visible { outline: 2px solid var(--zt-accent); outline-offset: 1px; }
.zt-dp__nav svg { inline-size: 18px; block-size: 18px; display: block; }

/* The chevron artwork points physically left. "Back one month" points left in a
   Gregorian (LTR) grid but RIGHT in a Jalali (RTL) one, where time runs
   right-to-left — so mirror whichever button needs it per calendar, not a
   fixed one. Getting this wrong makes both arrows point outwards. */
.zt-dp[data-calendar="gregorian"] .zt-dp__nav--next svg,
.zt-dp[data-calendar="jalali"] .zt-dp__nav--prev svg { transform: scaleX(-1); }

.zt-dp__title {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
  gap: 6px;
}

.zt-dp__title button {
  padding: 4px 8px;
  font: inherit;
  font-weight: 600;
  color: var(--zt-dp-head-color);
  background: none;
  border: 0;
  border-radius: 6px;
  cursor: pointer;
  transition: background-color var(--zt-transition);
}
.zt-dp__title button:hover { background: var(--zt-dp-day-hover-bg); color: var(--zt-accent); }
.zt-dp__title button:focus-visible { outline: 2px solid var(--zt-accent); outline-offset: 1px; }

/* --- Day grid ------------------------------------------------------------- */

.zt-dp__weekdays,
.zt-dp__days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: var(--zt-dp-gap);
}

.zt-dp__weekdays {
  margin-block-end: 4px;
}
.zt-dp__weekday {
  display: flex;
  align-items: center;
  justify-content: center;
  block-size: 28px;
  font-size: var(--zt-help-font-size);
  font-weight: 600;
  color: var(--zt-dp-weekday-color);
}

.zt-dp__day {
  display: flex;
  align-items: center;
  justify-content: center;
  block-size: var(--zt-dp-cell);
  padding: 0;
  font: inherit;
  font-size: calc(var(--zt-font-size) - 1px);
  font-variant-numeric: tabular-nums;
  color: var(--zt-dp-day-color);
  background: none;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color var(--zt-transition), color var(--zt-transition);
}
.zt-dp__day:hover:not(:disabled) { background: var(--zt-dp-day-hover-bg); }
.zt-dp__day:focus-visible { outline: 2px solid var(--zt-accent); outline-offset: -2px; }
.zt-dp__day--outside { color: var(--zt-dp-outside-color); }
.zt-dp__day--holiday { color: var(--zt-dp-holiday-color); }
.zt-dp__day--today { border-color: var(--zt-dp-today-border); font-weight: 700; }
.zt-dp__day--selected,
.zt-dp__day--selected:hover {
  background: var(--zt-dp-selected-bg);
  border-color: var(--zt-dp-selected-bg);
  color: var(--zt-dp-selected-color);
  font-weight: 600;
}
.zt-dp__day:disabled {
  color: var(--zt-dp-disabled-color);
  cursor: not-allowed;
  opacity: .5;
  background: none;
}

/* --- Month / year pickers -------------------------------------------------- */

/* The month and year pickers replace the day grid in place — the weekday row
   and days are hidden while one is open, so the panel never shows both. */
.zt-dp__grid {
  display: grid;
  gap: var(--zt-dp-gap);
  max-block-size: calc(var(--zt-dp-cell) * 6 + var(--zt-dp-gap) * 5 + 32px);
  overflow-y: auto;
  /* Scrolls, but without a visible bar. */
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.zt-dp__grid::-webkit-scrollbar { inline-size: 0; block-size: 0; display: none; }
.zt-dp__grid[hidden] { display: none; }
.zt-dp__grid--months { grid-template-columns: repeat(3, 1fr); }
.zt-dp__grid--years  { grid-template-columns: repeat(4, 1fr); }

.zt-dp__cell {
  display: flex;
  align-items: center;
  justify-content: center;
  block-size: var(--zt-dp-cell);
  padding: 0 4px;
  font: inherit;
  font-size: calc(var(--zt-font-size) - 1px);
  color: var(--zt-dp-day-color);
  background: none;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color var(--zt-transition), color var(--zt-transition);
}
.zt-dp__cell:hover:not(:disabled) { background: var(--zt-dp-day-hover-bg); }
.zt-dp__cell:focus-visible { outline: 2px solid var(--zt-accent); outline-offset: -2px; }
.zt-dp__cell--selected {
  background: var(--zt-dp-selected-bg);
  border-color: var(--zt-dp-selected-bg);
  color: var(--zt-dp-selected-color);
  font-weight: 600;
}
.zt-dp__cell:disabled { color: var(--zt-dp-disabled-color); cursor: not-allowed; opacity: .5; }

/* --- Footer --------------------------------------------------------------- */

.zt-dp__footer {
  display: flex;
  gap: 8px;
  margin-block-start: 10px;
  padding-block-start: 10px;
  border-block-start: var(--zt-border-width) solid var(--zt-border);
}
.zt-dp__footer button {
  flex: 1 1 auto;
  padding: 7px 10px;
  font: inherit;
  font-size: var(--zt-help-font-size);
  font-weight: 500;
  color: var(--zt-accent);
  background: none;
  border: var(--zt-border-width) solid var(--zt-border);
  border-radius: 8px;
  cursor: pointer;
  transition: background-color var(--zt-transition), border-color var(--zt-transition);
}
.zt-dp__footer button:hover { background: var(--zt-dp-day-hover-bg); border-color: var(--zt-accent); }
.zt-dp__footer button:focus-visible { outline: 2px solid var(--zt-accent); outline-offset: 1px; }
.zt-dp__footer .zt-dp__clear { color: var(--zt-help-color); }

/* --- The field itself ------------------------------------------------------ */

/* A date field driven by the picker is a plain text box; the native calendar
   indicator would be a second, conflicting control. */
.zt-form .zt-datefield { cursor: pointer; }
.zt-form .zt-datefield::-webkit-calendar-picker-indicator { display: none; }
.zt-form .zt-datefield::-webkit-inner-spin-button { display: none; }

/* Jalali dates are Latin-digit-free but still read LTR-ish; keep them aligned
   with the rest of the form instead of forcing a direction. */
.zt-form .zt-datefield { font-variant-numeric: tabular-nums; }

@media (prefers-reduced-motion: reduce) {
  .zt-dp, .zt-dp * { transition-duration: 1ms !important; }
}