arcana-date-picker.date-picker {
  --date-accent: var(--number-blue, var(--card-accent, #b9a0ff));
  --date-glow: var(--number-glow, color-mix(in srgb, var(--date-accent) 20%, transparent));
  --date-line: var(--line, var(--glass-stroke, rgba(255, 255, 255, .14)));
  --date-surface: var(--surface-solid, var(--glass-heavy, #191522));
  --date-panel: var(--surface, var(--glass, rgba(25, 20, 34, .78)));
  --date-ink: var(--ink, var(--mist, #f6f1fb));
  --date-muted: var(--muted, var(--mist-muted, #b9afc4));
  --date-gold: var(--gold, #d5b36a);
  --date-font: var(--sans, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif);
  position: relative;
  display: block;
  min-width: 0;
}

.birth-date-trigger {
  position: relative;
  display: flex;
  width: 100%;
  min-height: 54px;
  padding: .75rem 4rem .75rem 1rem;
  border: 1px solid color-mix(in srgb, var(--date-accent) 28%, var(--date-line));
  border-radius: 17px;
  align-items: center;
  background: linear-gradient(135deg, color-mix(in srgb, var(--date-surface) 88%, transparent), color-mix(in srgb, var(--date-accent) 7%, var(--date-surface)));
  color: var(--date-ink);
  box-shadow: inset 0 1px 0 color-mix(in srgb, white 10%, transparent), 0 12px 28px rgba(0,0,0,.08);
  cursor: pointer;
  font: 650 1rem var(--date-font);
  font-variant-numeric: tabular-nums;
  text-align: left;
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.birth-date-trigger [data-date-value] { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.birth-date-trigger:hover,
.birth-date-trigger[aria-expanded="true"],
.birth-date-trigger:focus-visible {
  border-color: var(--date-accent);
  outline: 0;
  box-shadow: 0 0 0 4px var(--date-glow), inset 0 1px 0 color-mix(in srgb, white 15%, transparent);
  transform: translateY(-1px);
}

.birth-date-trigger__icon {
  position: absolute;
  top: 50%;
  right: 0;
  width: 50px;
  height: 100%;
  border-left: 1px solid var(--date-line);
  background: color-mix(in srgb, var(--date-accent) 8%, transparent);
  pointer-events: none;
  transform: translateY(-50%);
}
.birth-date-trigger__icon::before,
.birth-date-trigger__icon::after { position: absolute; content: ""; }
.birth-date-trigger__icon::before { top: 17px; left: 17px; width: 15px; height: 14px; border: 1.5px solid var(--date-ink); border-radius: 4px; }
.birth-date-trigger__icon::after { top: 21px; left: 17px; width: 15px; border-top: 1.5px solid var(--date-ink); box-shadow: 4px -6px 0 -3px var(--date-ink), 11px -6px 0 -3px var(--date-ink); }

.date-popover {
  position: absolute;
  z-index: 80;
  top: calc(100% + .65rem);
  left: 0;
  width: min(360px, calc(100vw - 3rem));
  padding: 1rem;
  border: 1px solid color-mix(in srgb, var(--date-accent) 30%, var(--date-line));
  border-radius: 22px;
  background: color-mix(in srgb, var(--date-surface) 96%, transparent);
  box-shadow: 0 28px 75px rgba(0,0,0,.35), inset 0 1px 0 color-mix(in srgb, white 8%, transparent);
  backdrop-filter: blur(24px) saturate(135%);
  transform-origin: 28px 0;
  animation: calendar-open .22s cubic-bezier(.2,.8,.2,1) both;
}
.date-popover[hidden] { display: none; }
.date-popover__header { display: grid; grid-template-columns: 34px 1fr 34px; gap: .55rem; align-items: center; margin-bottom: .85rem; }
.date-popover__header > button {
  width: 34px;
  height: 38px;
  min-height: 0;
  padding: 0;
  border: 1px solid var(--date-line);
  border-radius: 12px;
  background: color-mix(in srgb, var(--date-panel) 78%, transparent);
  color: var(--date-ink);
  cursor: pointer;
  font-size: 1.35rem;
}
.date-popover__header > button:hover:not(:disabled) { border-color: var(--date-accent); color: var(--date-accent); }
.date-popover__header > button:disabled { cursor: not-allowed; opacity: .3; }
.date-popover__selectors { display: grid; grid-template-columns: minmax(0, 1fr) 84px; gap: .4rem; }
.date-popover select {
  min-width: 0;
  height: 38px;
  padding: 0 .55rem;
  border: 1px solid var(--date-line);
  border-radius: 11px;
  outline: 0;
  background: var(--date-surface);
  color: var(--date-ink);
  font: 650 .78rem var(--date-font);
}
.date-popover select option { background: var(--date-surface); color: var(--date-ink); }
.date-popover select:focus-visible { border-color: var(--date-accent); box-shadow: 0 0 0 3px var(--date-glow); }
.date-popover__weekdays,
.date-popover__grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: .28rem; }
.date-popover__weekdays { margin-bottom: .35rem; color: var(--date-muted); font-size: .66rem; font-weight: 700; text-align: center; }
.date-popover__weekdays span { padding: .25rem 0; }
.date-popover__grid > span { aspect-ratio: 1; }
.date-popover__day {
  display: grid;
  width: 100%;
  min-height: 0;
  aspect-ratio: 1;
  padding: 0;
  border: 0;
  border-radius: 50%;
  place-items: center;
  background: transparent;
  color: var(--date-ink);
  cursor: pointer;
  font: 650 .78rem var(--date-font);
}
.date-popover__day:hover:not(:disabled),
.date-popover__day:focus-visible { background: color-mix(in srgb, var(--date-accent) 16%, transparent); color: var(--date-accent); outline: 0; }
.date-popover__day.is-today { box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--date-gold) 70%, var(--date-line)); }
.date-popover__day.is-selected { background: var(--date-accent); color: #100d19; box-shadow: 0 7px 18px var(--date-glow); }
.date-popover__day:disabled { cursor: not-allowed; opacity: .22; }
.date-popover__footer { display: flex; justify-content: space-between; gap: .5rem; margin-top: .85rem; padding-top: .75rem; border-top: 1px solid var(--date-line); }
.date-popover__footer button {
  min-height: 34px;
  padding: 0 .7rem;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--date-muted);
  cursor: pointer;
  font: 700 .74rem var(--date-font);
}
.date-popover__footer button:hover { background: color-mix(in srgb, var(--date-accent) 12%, transparent); color: var(--date-ink); }
.date-popover button:focus-visible { outline: 2px solid var(--date-accent); outline-offset: 2px; }
.date-picker.has-value .birth-date-trigger [data-date-value] { color: var(--date-ink); }
.date-picker:not(.has-value) .birth-date-trigger [data-date-value] { color: var(--date-muted); }

@keyframes calendar-open { from { opacity: 0; transform: translateY(-7px) scale(.97); } }

@media (max-width: 640px) {
  .date-popover { width: min(330px, calc(100vw - 4rem)); }
}

@media (prefers-reduced-motion: reduce) {
  .date-popover { animation: none; }
}