.irhvac-flow {
    --flow-border: #d7dde5;
    --flow-text: #1e293b;
    --flow-muted: #64748b;
    --flow-primary: #0f5d7a;
    --flow-primary-hover: #0b4a61;
    --flow-soft: #f5f8fb;
    --flow-source: #eef8f5;
    --flow-error: #a61b1b;
    color: var(--flow-text);
    font: inherit;
    max-width: 920px;
    margin: 1.25rem auto;
}

.irhvac-flow *,
.irhvac-flow *::before,
.irhvac-flow *::after {
    box-sizing: border-box;
}

.irhvac-flow__form {
    border: 1px solid var(--flow-border);
    border-radius: 12px;
    background: #fff;
    padding: 1.15rem;
}

.irhvac-flow__fields {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(250px, 1.2fr);
    gap: 1rem;
}

.irhvac-flow__field label {
    display: block;
    margin-bottom: 0.42rem;
    font-weight: 700;
}

.irhvac-flow__field input,
.irhvac-flow__field select {
    width: 100%;
    min-width: 0;
    height: 44px;
    border: 1px solid var(--flow-border);
    border-radius: 8px;
    background: #fff;
    color: var(--flow-text);
    padding: 0 0.75rem;
    font: inherit;
}

.irhvac-flow__field input {
    direction: ltr;
    text-align: left;
}

.irhvac-flow__field input:focus,
.irhvac-flow__field select:focus {
    outline: 2px solid rgba(15, 93, 122, 0.2);
    outline-offset: 1px;
    border-color: var(--flow-primary);
}

.irhvac-flow__actions {
    display: flex;
    gap: 0.65rem;
    margin-top: 1rem;
}

.irhvac-flow__button {
    min-height: 42px;
    border-radius: 8px;
    padding: 0.62rem 1.1rem;
    border: 1px solid transparent;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.irhvac-flow__button--primary {
    background: var(--flow-primary);
    color: #fff;
}

.irhvac-flow__button--primary:hover {
    background: var(--flow-primary-hover);
}

.irhvac-flow__button--secondary {
    background: #fff;
    color: var(--flow-text);
    border-color: var(--flow-border);
}

.irhvac-flow__button--secondary:hover {
    background: var(--flow-soft);
}

.irhvac-flow__message {
    margin-top: 1rem;
    border: 1px solid #efb4b4;
    border-radius: 10px;
    background: #fff2f2;
    color: var(--flow-error);
    padding: 0.9rem 1rem;
}

.irhvac-flow__result {
    margin-top: 1rem;
}

.irhvac-flow__summary {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0.4rem;
    margin: 0 0 1rem;
    border: 1px solid #b9d9cf;
    border-radius: 10px;
    background: #f4fbf8;
    padding: 0.85rem 1rem;
}

.irhvac-flow__summary strong {
    color: #0f6b52;
    font-size: 1.12rem;
}

.irhvac-flow__group + .irhvac-flow__group {
    margin-top: 1rem;
}

.irhvac-flow__group h3 {
    margin: 0 0 0.5rem;
    font-size: 1.02rem;
}

.irhvac-flow__table-wrap {
    overflow-x: auto;
    border: 1px solid var(--flow-border);
    border-radius: 10px;
    background: #fff;
}

.irhvac-flow__table {
    width: 100%;
    border-collapse: collapse;
    margin: 0;
}

.irhvac-flow__table th,
.irhvac-flow__table td {
    padding: 0.7rem 0.8rem;
    text-align: right;
    border-bottom: 1px solid var(--flow-border);
    vertical-align: middle;
}

.irhvac-flow__table th {
    background: var(--flow-soft);
    font-weight: 700;
    white-space: nowrap;
}

.irhvac-flow__table tr:last-child td {
    border-bottom: 0;
}

.irhvac-flow__table td[dir="ltr"],
.irhvac-flow__table th:last-child {
    text-align: left;
}

.irhvac-flow__table tr.is-source td {
    background: var(--flow-source);
}

.irhvac-flow__help {
    margin-top: 0.9rem;
    border: 1px solid var(--flow-border);
    border-radius: 10px;
    background: #fff;
}

.irhvac-flow__help summary {
    cursor: pointer;
    padding: 0.78rem 0.9rem;
    font-weight: 700;
}

.irhvac-flow__help > div {
    padding: 0 0.9rem 0.85rem;
    color: var(--flow-muted);
}

.irhvac-flow__help p {
    margin: 0.4rem 0 0;
}

.irhvac-flow__author {
    margin: 0.8rem 0 0;
    color: var(--flow-muted);
    font-size: 0.9rem;
}

@media (max-width: 700px) {
    .irhvac-flow__fields {
        grid-template-columns: 1fr;
    }

    .irhvac-flow__actions {
        flex-direction: column;
    }

    .irhvac-flow__button {
        width: 100%;
    }

    .irhvac-flow__table-wrap {
        overflow: visible;
        border: 0;
        background: transparent;
    }

    .irhvac-flow__table,
    .irhvac-flow__table tbody,
    .irhvac-flow__table tr,
    .irhvac-flow__table td {
        display: block;
        width: 100%;
    }

    .irhvac-flow__table thead {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(0 0 0 0);
        white-space: nowrap;
    }

    .irhvac-flow__table tr {
        margin-bottom: 0.55rem;
        border: 1px solid var(--flow-border);
        border-radius: 9px;
        background: #fff;
        overflow: hidden;
    }

    .irhvac-flow__table tr.is-source {
        border-color: #b9d9cf;
    }

    .irhvac-flow__table td,
    .irhvac-flow__table td[dir="ltr"] {
        display: grid;
        grid-template-columns: 8.5rem minmax(0, 1fr);
        gap: 0.75rem;
        border-bottom: 1px solid var(--flow-border);
        text-align: left;
        overflow-wrap: anywhere;
    }

    .irhvac-flow__table td::before {
        content: attr(data-label);
        color: var(--flow-muted);
        text-align: right;
        direction: rtl;
        font-weight: 600;
    }

    .irhvac-flow__table tr:last-child,
    .irhvac-flow__table tr:last-child td:last-child {
        margin-bottom: 0;
    }
}