:root {
    --bg: var(--tg-theme-bg-color, #ffffff);
    --secondary-bg: var(--tg-theme-secondary-bg-color, #f1f1f1);
    --text: var(--tg-theme-text-color, #111111);
    --hint: var(--tg-theme-hint-color, #8e8e93);
    --button: var(--tg-theme-button-color, #007aff);
    --button-text: var(--tg-theme-button-text-color, #ffffff);
    --section: var(--tg-theme-section-bg-color, #ffffff);
}

* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html,
body {
    margin: 0;
    padding: 0;
    width: 100%;
    min-height: 100%;
    background: var(--bg);
    color: var(--text);
    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        Roboto,
        Helvetica,
        Arial,
        sans-serif;
}

body {
    overflow-x: hidden;
}

button {
    font: inherit;
    border: 0;
    background: none;
    color: inherit;
    cursor: pointer;
}

.app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.header {
    padding: 18px 16px 10px;
    text-align: center;
}

.header h1 {
    margin: 0;
    font-size: 20px;
    line-height: 26px;
    font-weight: 600;
}

main {
    flex: 1;
    padding: 8px 16px 20px;
}

.calendar {
    width: 100%;
}

.month-header {
    display: grid;
    grid-template-columns: 44px 1fr 44px;
    align-items: center;
    margin-bottom: 12px;
}

#monthTitle {
    text-align: center;
    font-size: 17px;
    font-weight: 600;
}

.month-button {
    width: 44px;
    height: 40px;
    border-radius: 10px;
    font-size: 28px;
    line-height: 36px;
    color: var(--button);
}

.month-button:active {
    background: var(--secondary-bg);
}

.weekdays,
.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.weekdays {
    margin-bottom: 5px;
}

.weekdays div {
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--hint);
    font-size: 12px;
    font-weight: 500;
}

.calendar-days {
    row-gap: 5px;
}

.day {
    aspect-ratio: 1 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 15px;
    position: relative;
}

.day.empty {
    pointer-events: none;
}

.day.disabled {
    color: var(--hint);
    opacity: 0.45;
}

.day.today::after {
    content: "";
    position: absolute;
    bottom: 4px;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--button);
}

.day.selected {
    background: var(--button);
    color: var(--button-text);
}

.day.selected::after {
    display: none;
}


/* ВРЕМЯ */

.time-section {
    margin-top: 28px;
}

.section-title {
    color: var(--hint);
    font-size: 13px;
    margin-bottom: 10px;
}

.time-picker {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 10px;
}

.time-display {
    min-width: 96px;
    height: 58px;
    padding: 0 12px;
    border-radius: 12px;
    background: var(--secondary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    font-weight: 500;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.time-adjust {
    height: 58px;
    padding: 0 10px;
    border-radius: 12px;
    background: var(--secondary-bg);
    font-size: 15px;
    font-weight: 500;
    white-space: nowrap;
}

.time-adjust:active {
    opacity: 0.65;
}

.choose-time-button {
    width: 100%;
    height: 46px;
    margin-top: 10px;
    border-radius: 12px;
    background: var(--secondary-bg);
    color: var(--text);
    font-size: 15px;
    font-weight: 500;
}

.choose-time-button:active {
    opacity: 0.65;
}

.hidden-time-input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.timezone {
    margin-top: 9px;
    text-align: center;
    color: var(--hint);
    font-size: 12px;
}


/* ПОВТОРЕНИЕ */

.repeat-section {
    margin-top: 28px;
    background: var(--secondary-bg);
    border-radius: 12px;
    overflow: hidden;
}

.repeat-row {
    min-height: 64px;
    padding: 11px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.repeat-title {
    font-size: 16px;
}

.repeat-value {
    margin-top: 3px;
    color: var(--hint);
    font-size: 13px;
}

.repeat-arrow {
    color: var(--hint);
    font-size: 25px;
}


/* НИЖНИЕ КНОПКИ */

.footer {
    padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    background: var(--bg);
}

.footer button {
    height: 48px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
}

.cancel-button {
    background: var(--secondary-bg);
    color: var(--text);
}

.schedule-button {
    background: var(--button);
    color: var(--button-text);
}

.footer button:disabled {
    opacity: 0.5;
}


/* МАЛЕНЬКИЕ ЭКРАНЫ */

@media (max-width: 360px) {

    main {
        padding-left: 10px;
        padding-right: 10px;
    }

    .day {
        font-size: 14px;
    }

    .time-picker {
        gap: 6px;
    }

    .time-display {
        min-width: 78px;
        padding: 0 6px;
        font-size: 27px;
    }

    .time-adjust {
        padding: 0 7px;
        font-size: 13px;
    }
}