/* =========================================
   Oxygen Cylinder Filling Process
   ========================================= */

.oxygen-process {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    box-sizing: border-box;
}

/* Each process row */
.oxygen-process .process-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 32px minmax(0, 1fr) 32px minmax(0, 1fr);
    gap: 0;
    width: 100%;
    align-items: stretch;
}

/* Reverse row */
.oxygen-process .process-row-reverse {
    direction: rtl;
}

.oxygen-process .process-row-reverse .process-box {
    direction: ltr;
}

/* Process boxes */
.oxygen-process .process-box {
    background: #d6eafc;
    border-top: 4px solid #0056a4;
    border-radius: 10px;
    padding: 12px 10px;
    box-sizing: border-box;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Blue primary boxes */
.oxygen-process .process-box-primary {
    background: #0056a4;
    border-top: 0;
    padding: 14px 10px;
}

/* Titles */
.oxygen-process .process-title {
    font-size: 15px;
    line-height: 1.35;
    font-weight: 700;
    color: #0b3d6e;
}

.oxygen-process .process-box-primary .process-title {
    color: #ffffff;
}

/* Description */
.oxygen-process .process-text {
    margin-top: 4px;
    font-size: 13px;
    line-height: 1.45;
    color: #334155;
}

.oxygen-process .process-box-primary .process-text {
    color: #d6eafc;
}

/* Horizontal arrows */
.oxygen-process .process-arrow {
    align-self: center;
    text-align: center;
    font-size: 22px;
    line-height: 1;
    color: #0056a4;
}

/* Vertical arrows */
.oxygen-process .process-down {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 32px minmax(0, 1fr) 32px minmax(0, 1fr);
    width: 100%;
    height: 36px;
    font-size: 22px;
    line-height: 36px;
    color: #0056a4;
}

.oxygen-process .process-down-right {
    text-align: center;
    grid-column: 1 / -1;
    justify-items: end;
        padding-right: 60px;
    display: flex;
    justify-content: end;
}

.oxygen-process .process-down-right::before {
    content: "";
    grid-column: 5;
}

.oxygen-process .process-down-left {
    text-align: center;
    grid-column: 1 / -1;
}

/* End box */
.oxygen-process .process-row-end {
    justify-content: end;
}

.oxygen-process .process-row-end .process-box {
    grid-column: 5;
}


/* =========================================
   Tablet
   ========================================= */

@media (max-width: 900px) {

    .oxygen-process {
        max-width: 100%;
    }

    .oxygen-process .process-row {
        grid-template-columns: minmax(0, 1fr) 24px minmax(0, 1fr) 24px minmax(0, 1fr);
    }

    .oxygen-process .process-title {
        font-size: 14px;
    }

    .oxygen-process .process-text {
        font-size: 12px;
    }

    .oxygen-process .process-arrow {
        font-size: 20px;
    }

    .oxygen-process .process-down {
        grid-template-columns: minmax(0, 1fr) 24px minmax(0, 1fr) 24px minmax(0, 1fr);
    }
}


/* =========================================
   Mobile
   ========================================= */

@media (max-width: 767px) {

    .oxygen-process {
        width: 100%;
    }

    /* Convert every row into a vertical flow */
    .oxygen-process .process-row,
    .oxygen-process .process-row-reverse {
        display: flex;
        flex-direction: column;
        width: 100%;
        gap: 0;
        direction: ltr;
    }

    /* Boxes */
    .oxygen-process .process-box,
    .oxygen-process .process-row-end .process-box {
        width: 100%;
        grid-column: auto;
        min-height: auto;
        padding: 13px 14px;
    }

    /* Titles */
    .oxygen-process .process-title {
        font-size: 15px;
        line-height: 1.4;
    }

    /* Description */
    .oxygen-process .process-text {
        font-size: 13px;
        line-height: 1.5;
    }

    /* Horizontal arrows become vertical */
    .oxygen-process .process-arrow {
        display: block;
        width: 100%;
        height: 34px;
        font-size: 0;
        line-height: 34px;
        text-align: center;
    }

    .oxygen-process .process-arrow::after {
        content: "↓";
        font-size: 22px;
        color: #0056a4;
    }

    /* Vertical arrows between rows */
    .oxygen-process .process-down {
        display: block;
        width: 100%;
        height: 34px;
        line-height: 34px;
        text-align: center;
        padding: 0;
        font-size: 22px;
    }

    .oxygen-process .process-down-right,
    .oxygen-process .process-down-left {
        text-align: center;
    }

    /* Keep all mobile boxes full width */
    .oxygen-process .process-box-primary {
        width: 100%;
    }
}


/* =========================================
   Small Mobile
   ========================================= */

@media (max-width: 480px) {

    .oxygen-process .process-box {
        padding: 12px 13px;
        border-radius: 8px;
    }

    .oxygen-process .process-title {
        font-size: 14px;
    }

    .oxygen-process .process-text {
        font-size: 12px;
    }

    .oxygen-process .process-arrow,
    .oxygen-process .process-down {
        height: 30px;
        line-height: 30px;
    }
}