.cp-date-range-dialog {
    width: min(640px, calc(100% - 24px));
    max-height: calc(100dvh - 24px);
    box-sizing: border-box;
    padding: clamp(16px, 4vw, 28px);
    border: 1px solid #dbe4f0;
    border-radius: 18px;
    background: #fff;
    color: #0f172a;
    box-shadow: 0 24px 70px rgb(15 23 42 / 25%);
}

.cp-date-range-dialog::backdrop {
    background: rgb(15 23 42 / 55%);
}

.cp-date-range-dialog h2 {
    margin: 0;
    font-size: 1.35rem;
}

.cp-date-range-intro {
    margin: 5px 0 16px;
    color: #475569;
}

.cp-date-range-fields,
.cp-date-range-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.cp-date-range-fields label {
    display: grid;
    gap: 5px;
    flex: 1 1 110px;
    font-size: .85rem;
    font-weight: 600;
    color: #334155;
}

.cp-date-range-dialog input,
.cp-date-range-actions button,
.cp-date-range-nav button {
    min-width: 0;
    font: inherit;
    padding: 8px 12px;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    background: #fff;
    color: inherit;
}

.cp-date-range-calendar {
    min-inline-size: 0;
    margin: 16px 0 0;
    padding: 12px;
    border: 1px solid #dbe4f0;
    border-radius: 12px;
}

.cp-date-range-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.cp-date-range-nav button {
    padding: 0;
    width: 36px;
    height: 36px;
    font-size: 1.4rem;
}

.cp-date-range-nav p,
.cp-date-range-window {
    margin: 0;
    font-size: .85rem;
    color: #475569;
    text-align: center;
}

.cp-date-range-months {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.cp-date-range-month h3 {
    margin: 8px 0;
    text-align: center;
    font-size: .92rem;
    text-transform: capitalize;
}

.cp-date-range-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 2px 0;
    text-align: center;
}

.cp-date-range-grid span {
    padding: 5px 0;
    color: #475569;
    font-size: .75rem;
}

.cp-date-range-day {
    min-height: 34px;
    padding: 0;
    border: 0;
    background: transparent;
    color: #0f172a;
    font: inherit;
    font-size: .85rem;
}

.cp-date-range-day.in-range {
    background: #dbeafe;
    color: #1e3a8a;
}

.cp-date-range-day.is-endpoint,
.cp-date-range-actions button[type="submit"] {
    border-radius: 8px;
    background: #1e40af;
    color: #fff;
}

.cp-date-range-dialog button:not(:disabled) {
    cursor: pointer;
}

.cp-date-range-day:hover:not(:disabled):not(.is-endpoint) {
    background: #bfdbfe;
}

.cp-date-range-dialog :focus-visible {
    outline: 2px solid #2563eb;
    outline-offset: 1px;
}

.cp-date-range-window {
    margin: 12px 0 16px;
    padding: 9px;
    border-radius: 8px;
    background: #f1f5f9;
    font-variant-numeric: tabular-nums;
}

.cp-date-range-actions {
    justify-content: flex-end;
}

.cp-date-range-dialog button:disabled {
    opacity: .6;
}

#treeDateRangeStatus.is-loading {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    background: #eff6ff;
    color: #1e3a8a;
}

#treeDateRangeStatus.is-loading::before {
    content: '';
    flex: 0 0 16px;
    height: 16px;
    box-sizing: border-box;
    border: 2px solid #bfdbfe;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: cp-date-range-spin .75s linear infinite;
}

@keyframes cp-date-range-spin {
    to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
    #treeDateRangeStatus.is-loading::before { animation: none; }
}

#treeDateRangeStatus:empty,
#btnOpenTreeDateRange:not(.active) .horizon-tag {
    display: none;
}

@media (max-width: 560px) {
    .cp-date-range-months {
        grid-template-columns: 1fr;
    }

    .cp-date-range-month + .cp-date-range-month {
        display: none;
    }
}