@layer components {
  .calendar-dialog {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 420px;
    height: 100dvh;
    margin: 0;
    padding: 0;
    border: none;
    background: var(--color-bg);
    color: var(--color-text);
    z-index: 1000;
  }

  .calendar-dialog::backdrop {
    background: var(--color-overlay);
  }

  .calendar-dialog[open] {
    display: flex;
    flex-direction: column;
  }

  /* Header */
  .calendar-dialog__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    flex-shrink: 0;
  }

  .calendar-dialog__back {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--color-surface);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    padding: 0;
  }

  .calendar-dialog__back svg {
    width: 22px;
    height: 22px;
    stroke: var(--color-text);
    stroke-width: 2;
    fill: none;
  }

  .calendar-dialog__today-btn {
    padding: 10px 24px;
    background: var(--color-accent);
    color: var(--color-on-accent);
    font-size: 14px;
    font-weight: var(--weight-semibold);
    font-family: inherit;
    border-radius: 24px;
    border: none;
    cursor: pointer;
  }

  .calendar-dialog__today-btn:active {
    opacity: 0.85;
  }

  /* Content area */
  .calendar-dialog__content {
    display: flex;
    flex-direction: column;
    flex: 1;
    overflow: hidden;
  }

  /* Weekday headers (sticky) */
  .calendar-dialog__weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    padding: 12px 16px;
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
  }

  .calendar-dialog__weekdays span {
    text-align: center;
    font-size: 12px;
    font-weight: var(--weight-medium);
    color: var(--color-text-muted);
    text-transform: lowercase;
  }

  /* Scrollable months */
  .calendar-dialog__months {
    flex: 1;
    overflow-y: auto;
    padding: 0 16px 40px;
    scrollbar-width: none;
  }

  .calendar-dialog__months::-webkit-scrollbar {
    display: none;
  }

  /* Individual month */
  .calendar-dialog__month {
    margin-bottom: 24px;
  }

  .calendar-dialog__month-name {
    text-align: center;
    font-family: var(--font-title);
    font-size: 15px;
    font-weight: var(--weight-semibold);
    color: var(--color-text);
    padding: 20px 0 16px;
  }

  /* Grid */
  .calendar-dialog__grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
  }

  /* Day cells */
  .calendar-dialog__day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: var(--weight-medium);
    color: var(--color-text);
    background: transparent;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    padding: 0;
  }

  .calendar-dialog__day:hover {
    background: var(--color-surface);
  }

  .calendar-dialog__day--empty {
    pointer-events: none;
  }

  .calendar-dialog__day--today {
    color: var(--color-accent);
    font-weight: var(--weight-bold);
  }

  .calendar-dialog__day--selected {
    background: var(--color-accent);
    color: var(--color-on-accent);
    font-weight: var(--weight-bold);
  }

  .calendar-dialog__day--selected:hover {
    background: var(--color-accent);
  }
}