/* ============================================================
   Date Picker / Calendar
   Token-driven, zero-dependency. Adapted from GeeksForGeeks.
   ============================================================ */

.date-picker {
  display: inline-block;
  width: 100%;
  max-width: 320px;
  background: var(--color-bg);
  border: 1px solid var(--color-bg-secondary);
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow) var(--color-shadow);
  font-family: inherit;
  user-select: none;
  overflow: hidden;
}

/* ── Header: month/year + nav arrows ── */
.date-picker__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--color-bg-secondary);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text);
}

.date-picker__nav {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px; height: 30px;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--color-text-secondary);
  border-radius: var(--border-radius);
  transition: background 0.15s, color 0.15s;
}
.date-picker__nav:hover { background: var(--color-bg); color: var(--color-text); }
.date-picker__nav .ic { width: 16px; height: 16px; }

/* ── Weekday row ── */
.date-picker__weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  padding: 8px 12px 0;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-secondary);
  text-align: center;
}

/* ── Date grid ── */
.date-picker__dates {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  padding: 4px 12px 12px;
  gap: 2px;
}
.date-picker__day {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  font-size: 0.84rem;
  color: var(--color-text);
  border-radius: 50%;
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
  border: none;
  background: none;
  font-family: inherit;
  padding: 0;
}
.date-picker__day:hover { background: var(--color-bg-secondary); }
.date-picker__day--outside { color: var(--color-text-secondary); opacity: 0.4; }

/* ── Today ── */
.date-picker__day--today {
  background: var(--color-link);
  color: var(--color-button-text, #fff);
  font-weight: 700;
}

/* ── Selected ── */
.date-picker__day--selected {
  background: color-mix(in srgb, var(--color-link) 15%, transparent);
  color: var(--color-link);
  font-weight: 700;
  box-shadow: inset 0 0 0 2px var(--color-link);
}
.date-picker__day--today.date-picker__day--selected {
  background: var(--color-link);
  color: var(--color-button-text, #fff);
  box-shadow: inset 0 0 0 2px var(--color-button-text, #fff);
}

/* ── Inline input trigger variant ── */
.date-picker__input {
  width: 100%;
  padding: 0.55rem 0.8rem;
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-bg-secondary);
  border-radius: var(--border-radius);
  cursor: pointer;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.date-picker__input:focus {
  border-color: var(--color-link);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-link) 20%, transparent);
}

.date-picker__wrapper { position: relative; display: inline-block; }
.date-picker__wrapper .date-picker {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  z-index: 100;
  display: none;
}
.date-picker__wrapper--open .date-picker { display: block; }