/*noinspection CssUnusedSymbol*/

/* ===== Calendar Popup Container ===== */
.calendar-popup {
    position: fixed;
    width: 20rem;
    border: 1px solid var(--primary10);
    border-radius: 0.5rem;
    background: var(--greyscale100);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 50;
    padding: 0.75rem;
    animation: calendarFadeIn 0.2s ease-out;
}

/* ===== Calendar Trigger Button ===== */
.calendar-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    min-width: max-content;
    padding: 0.5rem;
    border: 1px solid var(--greyscale60);
    border-radius: 0.5rem;
    background: var(--greyscale100);
    color: var(--primary10);
    font-family: inherit;
    font-size: inherit;
    text-align: left;
    cursor: pointer;
    transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.calendar-trigger:hover {
    box-shadow: 0 2px 4px 2px rgb(0 0 0 / 30%);
    border-color: var(--primary10);
}

.calendar-trigger:focus,
.calendar-trigger:focus-visible {
    box-shadow: 0 0 0 2px var(--primary40);
    border-color: var(--primary10);
    outline: 2px solid var(--primary10);
    outline-offset: 2px;
}

.calendar-trigger-placeholder {
    color: var(--greyscale60);
}

.calendar-trigger-icon {
    width: 1.25rem;
    height: 1.25rem;
    margin-left: 0.5rem;
    flex-shrink: 0;
    fill: var(--primary10);
}

/* ===== Calendar Header ===== */
.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.calendar-header-label {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.calendar-header-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border: none;
    border-radius: 0.375rem;
    background: transparent;
    color: var(--primary10);
    cursor: pointer;
    transition: background-color 0.15s ease;
}

.calendar-header-btn:hover {
    background: var(--primary100);
}

.calendar-header-btn:focus-visible {
    outline: 2px solid var(--primary10);
    outline-offset: 2px;
    box-shadow: 0 0 0 2px var(--primary40);
}

.calendar-header-btn svg {
    width: 1rem;
    height: 1rem;
    fill: currentColor;
}

.calendar-month-btn,
.calendar-year-btn {
    border: none;
    background: transparent;
    color: var(--primary10);
    font-weight: 600;
    font-size: 0.9375rem;
    padding: 0.25rem 0.5rem;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: background-color 0.15s ease;
}

.calendar-month-btn:hover,
.calendar-year-btn:hover {
    background: var(--primary100);
}

.calendar-month-btn:focus-visible,
.calendar-year-btn:focus-visible {
    outline: 2px solid var(--primary10);
    outline-offset: 2px;
    box-shadow: 0 0 0 2px var(--primary40);
}

/* ===== Day Grid ===== */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0;
}

/* ARIA row wrappers — display: contents so children participate in parent grid */
.calendar-weekday-row,
.calendar-week-row {
    display: contents;
}

.calendar-weekday {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--greyscale40);
    user-select: none;
}

.calendar-day {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    aspect-ratio: 1;
    height: 2.5rem;
    border: none;
    border-radius: 0.375rem;
    background: transparent;
    color: var(--primary10);
    font-size: 0.8125rem;
    cursor: pointer;
    transition: background-color 0.15s ease;
    position: relative;
}

.calendar-day:hover {
    background: var(--primary100);
}

.calendar-day:focus-visible {
    outline: 2px solid var(--primary10);
    outline-offset: 2px;
    box-shadow: 0 0 0 2px var(--primary40);
    z-index: 1;
}

/* Outside current month */
/*noinspection CssUnusedSymbol*/
.calendar-day-outside {
    color: var(--greyscale60);
}

/* Today indicator */
/*noinspection CssUnusedSymbol*/
.calendar-day-today {
    border: 2px solid var(--primary40);
}

/* Single selected date */
/*noinspection CssUnusedSymbol*/
.calendar-day-selected {
    background: var(--primary10);
    color: var(--greyscale100);
    border-radius: 0.375rem;
}

.calendar-day-selected:hover {
    background: var(--primary10);
}

/* Range start */
/*noinspection CssUnusedSymbol*/
.calendar-day-range-start {
    background: var(--primary10);
    color: var(--greyscale100);
    border-radius: 0.375rem 0 0 0.375rem;
}

.calendar-day-range-start:hover {
    background: var(--primary10);
}

/* Range end */
/*noinspection CssUnusedSymbol*/
.calendar-day-range-end {
    background: var(--primary10);
    color: var(--greyscale100);
    border-radius: 0 0.375rem 0.375rem 0;
}

.calendar-day-range-end:hover {
    background: var(--primary10);
}

/* Same day selected as both start and end */
/*noinspection CssUnusedSymbol*/
.calendar-day-range-single {
    background: var(--primary10);
    color: var(--greyscale100);
    border-radius: 0.375rem;
}

.calendar-day-range-single:hover {
    background: var(--primary10);
}

/* In range (between start and end) */
/*noinspection CssUnusedSymbol*/
.calendar-day-in-range {
    background: var(--primary100);
    border-radius: 0;
}

/* Range preview (hovering to select end) */
/*noinspection CssUnusedSymbol*/
.calendar-day-in-range-preview {
    background: var(--primary100);
    opacity: 0.7;
    border-radius: 0;
}

/* Focused date (keyboard navigation) */
/*noinspection CssUnusedSymbol*/
.calendar-day-focused {
    box-shadow: 0 0 0 2px var(--primary40);
    z-index: 1;
}

/* ===== Month / Year Picker Grid ===== */
.calendar-picker-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    padding: 0.5rem 0;
}

.calendar-picker-cell {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 2.5rem;
    border: none;
    border-radius: 0.375rem;
    background: transparent;
    color: var(--primary10);
    font-size: 0.875rem;
    cursor: pointer;
    transition: background-color 0.15s ease;
}

.calendar-picker-cell:hover {
    background: var(--primary100);
}

.calendar-picker-cell:focus-visible {
    outline: 2px solid var(--primary10);
    outline-offset: 2px;
    box-shadow: 0 0 0 2px var(--primary40);
}

/*noinspection CssUnusedSymbol*/
.calendar-picker-cell-selected {
    background: var(--primary10);
    color: var(--greyscale100);
}

.calendar-picker-cell-selected:hover {
    background: var(--primary10);
}

/* ===== Range Display (for range mode trigger) ===== */
/* Deprecated: old two-button range triggers — kept for rollback */
/* .calendar-range-triggers {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: flex-end;
} */

/* .calendar-range-field {
    flex: 1;
    min-width: 12rem;
} */

/* .calendar-range-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary10);
    margin-bottom: 0.25rem;
    margin-left: 0.25rem;
} */

/* ===== Dual-Month Popup ===== */
.calendar-popup-dual {
    width: 42rem;
    max-width: calc(100vw - 1rem);
}

.calendar-panels {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.calendar-panel {
    flex: 1;
    min-width: 0;
}

.calendar-panels > .calendar-panel:first-child {
    border-right: 1px solid var(--greyscale60);
    padding-right: 1rem;
}

/* Range trigger — wider to accommodate "DD.MM.YYYY – DD.MM.YYYY" */
/*noinspection CssUnusedSymbol*/
.calendar-range-trigger {
    min-width: 16rem;
}

/* Spacer elements in right panel header (no interactive styling) */
.calendar-header-spacer {
    width: 2rem;
    height: 2rem;
}

/* Narrow viewports: stack panels vertically */
@media (max-width: 48rem) {
    .calendar-popup-dual {
        width: 20rem;
    }
    .calendar-panels {
        flex-direction: column;
    }
    .calendar-panels > .calendar-panel:first-child {
        border-right: none;
        padding-right: 0;
        border-bottom: 1px solid var(--greyscale60);
        padding-bottom: 1rem;
    }
}

/* ===== Animations ===== */
@keyframes calendarFadeIn {
    from {
        opacity: 0;
        transform: translateY(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes calendarSlideLeft {
    from {
        opacity: 0;
        transform: translateX(1rem);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes calendarSlideRight {
    from {
        opacity: 0;
        transform: translateX(-1rem);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/*noinspection CssUnusedSymbol*/
.calendar-slide-left {
    animation: calendarSlideLeft 0.2s ease-out;
}

/*noinspection CssUnusedSymbol*/
.calendar-slide-right {
    animation: calendarSlideRight 0.2s ease-out;
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
    .calendar-popup,
    .calendar-popup-dual,
    .calendar-slide-left,
    .calendar-slide-right {
        animation: none;
    }

    .calendar-day,
    .calendar-header-btn,
    .calendar-month-btn,
    .calendar-year-btn,
    .calendar-picker-cell,
    .calendar-trigger {
        transition: none;
    }
}