.birthday-picker-native {
    display: none !important;
}

.birthday-picker-trigger {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
    min-height: 50px;
    padding: 0 48px 0 16px;
    border: 1px solid #c8dceb;
    border-radius: 10px;
    background: #fff;
    color: #18384a;
    font: inherit;
    text-align: left;
    cursor: pointer;
    transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.birthday-picker-trigger::before {
    content: "";
    position: absolute;
    right: 17px;
    width: 16px;
    height: 15px;
    border: 2px solid #0b6fae;
    border-radius: 3px;
    box-sizing: border-box;
}

.birthday-picker-trigger::after {
    content: "";
    position: absolute;
    right: 20px;
    top: calc(50% - 8px);
    width: 10px;
    height: 4px;
    border-top: 2px solid #0b6fae;
    border-bottom: 2px solid #0b6fae;
}

.birthday-picker-trigger:hover {
    border-color: #79b9df;
    background: #fafdff;
}

.birthday-picker-trigger:focus-visible {
    outline: none;
    border-color: #168ac8;
    box-shadow: 0 0 0 4px rgba(22, 138, 200, 0.15);
}

.birthday-picker-trigger.is-empty {
    color: #70889a;
}

.birthday-picker-trigger.is-invalid {
    border-color: #d73a4a;
    box-shadow: 0 0 0 3px rgba(215, 58, 74, 0.12);
}

.birthday-picker-backdrop {
    position: fixed;
    inset: 0;
    z-index: 5000;
    display: grid;
    place-items: center;
    padding: 16px;
    background: rgba(4, 35, 52, 0.54);
}

.birthday-picker-backdrop[hidden] {
    display: none;
}

.birthday-picker-dialog {
    width: min(360px, calc(100vw - 32px));
    overflow: hidden;
    border: 1px solid #c7dfed;
    border-radius: 14px;
    background: #fff;
    box-shadow: 0 24px 60px rgba(4, 43, 63, 0.24);
}

.birthday-picker-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 17px 18px 13px;
    border-bottom: 1px solid #dce9f1;
}

.birthday-picker-heading strong {
    color: #073e56;
    font-size: 1.05rem;
}

.birthday-picker-close,
.birthday-picker-nav {
    display: inline-grid;
    place-items: center;
    flex: 0 0 auto;
    width: 36px;
    height: 36px;
    padding: 0;
    border: 1px solid #c8deeb;
    border-radius: 8px;
    background: #f5faff;
    color: #075d8c;
    font: inherit;
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
}

.birthday-picker-close:hover,
.birthday-picker-nav:hover {
    background: #e8f5fc;
}

.birthday-picker-controls {
    display: grid;
    grid-template-columns: 36px minmax(0, 1fr) 92px 36px;
    gap: 8px;
    padding: 14px 16px 12px;
}

.birthday-picker-controls select,
.birthday-picker-controls input {
    width: 100%;
    height: 36px;
    min-width: 0;
    padding: 0 9px;
    border: 1px solid #c8deeb;
    border-radius: 8px;
    background: #fff;
    color: #123f55;
    font: inherit;
    font-size: 0.92rem;
}

.birthday-picker-weekdays,
.birthday-picker-days {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
}

.birthday-picker-weekdays {
    padding: 0 16px 5px;
}

.birthday-picker-weekdays span {
    color: #60798a;
    font-size: 0.72rem;
    font-weight: 700;
    text-align: center;
}

.birthday-picker-days {
    gap: 4px;
    padding: 4px 16px 16px;
}

.birthday-picker-day,
.birthday-picker-blank {
    aspect-ratio: 1;
}

.birthday-picker-day {
    display: grid;
    place-items: center;
    padding: 0;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: #173f52;
    font: inherit;
    font-size: 0.9rem;
    font-weight: 650;
    cursor: pointer;
}

.birthday-picker-day:hover {
    background: #e8f5fc;
}

.birthday-picker-day.is-selected {
    background: #087db8;
    color: #fff;
}

.birthday-picker-day.is-today:not(.is-selected) {
    box-shadow: inset 0 0 0 2px #67b9df;
}

.birthday-picker-day:disabled {
    color: #b2c0c9;
    cursor: not-allowed;
}

.birthday-picker-help {
    margin: 0;
    padding: 12px 18px 16px;
    border-top: 1px solid #e1edf3;
    color: #60798a;
    font-size: 0.83rem;
    line-height: 1.45;
}

@media (max-width: 430px) {
    .birthday-picker-dialog {
        width: min(340px, calc(100vw - 20px));
    }

    .birthday-picker-controls {
        grid-template-columns: 34px minmax(0, 1fr) 82px 34px;
        gap: 6px;
        padding-inline: 12px;
    }

    .birthday-picker-weekdays,
    .birthday-picker-days {
        padding-inline: 12px;
    }
}