.kkpay-customer-calendar {
    width: 90vw;
    max-width: 90vw;
    margin: 2vh auto 0;
    position: relative;
    text-align: center;
    font-family: Arial, sans-serif;
    color: #111;
}

.kkpay-customer-calendar__header {
    margin: 0;
}

.kkpay-customer-calendar__title {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.kkpay-customer-calendar__month-nav,
.kkpay-customer-calendar__month-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0;
    background-color: #ea2525;
    color: #ffffff;
    padding: 1vh;
    border-radius: 1vw;
    font-size: 3vw;
    line-height: 1.2;
    font-weight: bold;
    text-align: center;
}

.kkpay-customer-calendar__month-title {
    display: block;
}

.kkpay-customer-calendar__nav-title {
    flex: 1;
    text-align: center;
}

.kkpay-customer-calendar__nav-button {
    background: #ffffff;
    border: none;
    padding: 1vh 1vw;
    cursor: pointer;
    font-size: 2vw;
    border-radius: 1vw;
    color: #111111;
}

.kkpay-customer-calendar__nav-button:disabled {
    cursor: default;
    opacity: 0.45;
}

.kkpay-customer-calendar__month-nav {
    display: none;
}

.kkpay-customer-calendar.is-enhanced .kkpay-customer-calendar__month-nav {
    display: flex;
}

.kkpay-customer-calendar.is-enhanced .kkpay-customer-calendar__month-title {
    display: none;
}

.kkpay-customer-calendar__legend {
    display: flex;
    justify-content: center;
    gap: 2vw;
    margin: 0.5vh 0;
    font-size: 1.8vw;
}

.kkpay-customer-calendar__legend span {
    display: flex;
    align-items: center;
    gap: 1vw;
    font-weight: bold;
}

.kkpay-customer-calendar__legend-emoji,
.kkpay-customer-calendar__emoji {
    display: inline-block;
    font-size: 2.5vw;
    padding: 0.2vh 0.2vw;
    background-color: #f9f9f9;
    border-radius: 1vw;
    line-height: 1;
}

.kkpay-customer-calendar__legend-premium {
    display: inline-block;
    width: 2.5vw;
    height: 2.5vw;
    border-radius: 1vw;
    background: #2563eb;
}

.kkpay-customer-calendar__months {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3vh;
}

.kkpay-customer-calendar__grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.5vw;
    margin-top: 0.1vh;
}

.kkpay-customer-calendar__day {
    position: relative;
    min-width: 0;
    min-height: 0;
    padding: 0.2vh;
    border: 0.2vw solid #ddd;
    border-radius: 1vw;
    background-color: #f9f9f9;
    overflow: hidden;
    text-align: center;
    font-size: 1.8vw;
    outline: 0 !important;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.kkpay-customer-calendar__day:focus,
.kkpay-customer-calendar__day:focus-visible,
.kkpay-customer-calendar__day:active {
    outline: 0 !important;
    box-shadow: none !important;
}

.kkpay-customer-calendar__day.is-today,
.kkpay-customer-calendar__day.is-today:focus,
.kkpay-customer-calendar__day.is-today:focus-visible,
.kkpay-customer-calendar__day.is-today:active {
    border: 0.5vw solid #d31010 !important;
}

.kkpay-customer-calendar__day.is-premium {
    box-shadow: inset 0 0 0 0.35vw #2563eb;
}

.kkpay-customer-calendar__day.is-closed {
    background-color: #f9f9f9;
}

.kkpay-customer-calendar__date {
    display: block;
    margin: 0 0 0.2vh;
    font-size: 1.8vw;
    font-weight: normal;
    line-height: 1.2;
}

.kkpay-customer-calendar__state {
    display: none;
}

.kkpay-customer-calendar__meal {
    display: block;
    margin-top: 0.2vh;
    padding: 0.2vh;
    border-radius: 1vw;
    font-size: 2vw;
    font-weight: bold;
    line-height: 1.25;
    text-align: left;
}

.kkpay-customer-calendar__meal.is-open {
    background-color: #a0ffa0;
}

.kkpay-customer-calendar__meal.is-closed {
    background-color: #ffaaaa;
}

.kkpay-customer-calendar__premium-label {
    display: block;
    margin-top: 0.2vh;
    padding: 0.2vh 0.4vw;
    border-radius: 1vw;
    background: #2563eb;
    color: #ffffff;
    font-size: 1.3vw;
    font-weight: bold;
    line-height: 1.25;
}

@media (max-width: 640px) {
    .kkpay-customer-calendar {
        width: 96vw;
        max-width: 96vw;
    }

    .kkpay-customer-calendar__month-title {
        font-size: 5vw;
        border-radius: 2vw;
    }

    .kkpay-customer-calendar__nav-button {
        padding: 1vh 2vw;
        font-size: 4vw;
        border-radius: 2vw;
    }

    .kkpay-customer-calendar__legend {
        gap: 4vw;
        font-size: 3.5vw;
    }

    .kkpay-customer-calendar__legend-emoji,
    .kkpay-customer-calendar__emoji {
        font-size: 4.2vw;
        border-radius: 2vw;
    }

    .kkpay-customer-calendar__grid {
        gap: 0.8vw;
    }

    .kkpay-customer-calendar__day {
        border-width: 0.35vw;
        border-radius: 2vw;
        font-size: 2.6vw;
    }

    .kkpay-customer-calendar__day.is-today,
    .kkpay-customer-calendar__day.is-today:focus,
    .kkpay-customer-calendar__day.is-today:focus-visible,
    .kkpay-customer-calendar__day.is-today:active {
        border-width: 0.7vw !important;
    }

    .kkpay-customer-calendar__date {
        font-size: 2.8vw;
    }

    .kkpay-customer-calendar__meal {
        border-radius: 2vw;
        font-size: 2.8vw;
    }

    .kkpay-customer-calendar__premium-label {
        border-radius: 2vw;
        font-size: 2.2vw;
    }
}