/* General styles */
body {
    font-family: Arial, sans-serif;
    background-color: #f4f9f9;
    color: #333;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Page padding */
.page-content {
    padding: 20px 0px 130px 0px; /* Keep result cards clear of the fixed footer. */
    max-width: 1200px;
    margin: auto;
}

#fixed-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: #f4f9f9;
    padding: 1px 10px 8px;
}

#calculation-results-section {
    margin-top: max(0px, calc(var(--vent-fixed-offset, 258px) - 18px));
    padding-bottom: calc(96px + env(safe-area-inset-bottom));
}

/* Flex and form styles */
.d-inline-flex {
    display: flex;
    align-items: center;
    flex-wrap: nowrap;
}

.d-inline-flex .form-label {
    margin-right: 10px;
    margin-bottom: 0;
    white-space: normal;
    flex: 1;
}

.d-inline-flex .form-select {
    min-width: 225px;
    width: auto;
    flex-shrink: 0;
}

#crawlspace-height-div .form-control {
    max-width: 82px;
    width: 100%;
    box-sizing: border-box;
}

.d-flex.gap-2 {
    display: flex;
    gap: 10px;
    align-items: flex-end;
    flex-wrap: nowrap;
}

.form-group:first-child .form-control {
    width: 100%;
}

#roof-pitch-div, #crawlspace-height-div, #vent-type-div {
    flex-basis: 33%;
    display: none;
}

.form-label {
    display: block;
    margin-bottom: 2px;
    font-size: 1rem;
}

.form-control, .form-select {
    width: 100%;
    margin-bottom: 1px;
}

form {
    background-color: white;
    padding: 20px;
    border-radius: 0 !important;
    max-width: 600px;
    margin: 0 auto;
}

form .form-group {
    margin-bottom: 1rem;
}

form button {
    width: auto;
    margin-left: auto;
    margin-right: auto;
    display: block;
}

/* Responsive adjustments */
@media (max-width: 385px) {
    .d-flex.gap-2 {
        flex-direction: column;
    }
}

/* Accordion styling */
.accordion {
    background-color: #0057b8;
    color: #fff;
    cursor: pointer;
    width: 100%;
    border: none;
    text-align: left;
    outline: none;
    transition: background-color 0.2s ease, border-radius 0.2s ease, box-shadow 0.2s ease;
    margin: 0;
    min-height: 88px;
    padding: 7px 14px;
    display: grid;
    grid-template-columns: 88px minmax(0, 1fr) 92px 24px;
    column-gap: 14px;
    align-items: center;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 87, 184, 0.16);
}

.accordion:focus-visible {
    box-shadow: 0 0 0 3px rgba(0, 87, 184, 0.25);
}

.accordion.active {
    border-bottom: 1px solid rgba(255, 255, 255, 0.32);
    border-radius: 10px 10px 1px 1px;
    box-shadow: 0 1px 4px rgba(0, 87, 184, 0.08);
    position: relative;
}

.accordion.active::after {
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-top: 10px solid #0169dd;
    bottom: -10px;
    content: "";
    left: 50%;
    position: absolute;
    transform: translateX(-50%);
    z-index: 2;
}

.accordion span {
    color: #fff;
}

.panel {
    background-color: transparent;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.2s ease-out;
}

.panel img {
    max-width: 50px;
    height: auto;
    border-radius: 4px;
    display: block;
    margin: auto;
}

.accordion.active, .accordion:hover {
    background-color: #0169dd;
}

.accordion:not([data-intake-toggle]):hover,
.accordion:not([data-intake-toggle]):active,
.accordion:not([data-intake-toggle]).active {
    background-color: #0057b8;
}

.accordion:not([data-intake-toggle]) {
    cursor: pointer;
}

.accordion[aria-disabled="true"] {
    cursor: default;
}

.accordion.is-selected {
    box-shadow: 0 0 0 3px #79b9f5;
}

.accordion .product-selection-label {
    display: block;
    font-weight: 700;
    font-size: 0.75rem;
}

.accordion .product-selection-label[hidden] {
    display: none;
}

.intake-choice-group {
    min-width: 0;
    border: 0;
    padding: 0;
    margin: 0;
}

.intake-choice-group legend {
    font-size: 1rem;
    font-weight: 700;
}

.intake-model-choice {
    cursor: pointer;
    margin: 0;
    min-height: 24px;
    line-height: 24px;
    display: inline-grid;
    grid-template-columns: 18px minmax(0, 1fr);
    column-gap: 6px;
    align-items: center;
    width: min(calc(100% - 12px), 6rem);
    text-align: left;
}

.intake-choice-group input[type="radio"] {
    width: 18px;
    height: 18px;
    vertical-align: middle;
    accent-color: #0057b8;
}

.intake-model-choice input[type="radio"] {
    margin: 0;
}

.intake-choice-group input:focus-visible,
.intake-selection-help-toggle:focus-visible {
    outline: 3px solid #0057b8;
    outline-offset: 3px;
}

.intake-selection-help-toggle {
    border: 0;
    padding: 2px;
    margin: 0;
    background: transparent;
    color: #0057b8;
    vertical-align: middle;
    cursor: pointer;
}

.intake-selection-note, .product-selection-instructions {
    font-size: 0.85rem;
    margin: 8px 0 12px;
}

/* Photo controls share the existing 24px label line, adding no row height. */
.intake-choice-group table th:nth-child(2) { width: 40%; }
.intake-choice-group table th:nth-child(3),
.intake-choice-group table th:nth-child(4) { width: 30%; }
.intake-model-heading {
    display: block;
    width: calc(83.333% - 1px);
    margin: 0 auto;
}
.intake-model-preview-group {
    display: inline-block;
    position: relative;
    width: min(100%, 7.25rem);
    vertical-align: baseline;
    text-align: left;
}
.intake-model-preview-group .intake-model-choice {
    width: calc(100% - 28px);
    white-space: nowrap;
}
.intake-photo-preview {
    position: absolute;
    top: 0;
    right: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    padding: 3px;
    border: 0;
    background: transparent;
    color: #005bbb;
    cursor: pointer;
}
.intake-photo-preview svg { width: 16px; height: 14px; }
.intake-photo-preview:focus-visible,
#intake-photo-close:focus-visible { outline: 3px solid #0057b8; outline-offset: 2px; }
#intake-photo-dialog {
    width: min(420px, calc(100vw - 32px));
    max-height: calc(100dvh - 48px);
    box-sizing: border-box;
    padding: 20px;
    border: 1px solid #dbe6f2;
    border-radius: 12px;
    color: #122e44;
    background: white;
    overscroll-behavior: contain;
}
#intake-photo-dialog::backdrop { background: rgb(18 46 68 / 60%); }
.intake-photo-dialog-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
#intake-photo-title { margin: 0; font-size: 1.4rem; font-weight: 700; }
#intake-photo-close {
    padding: 4px 8px;
    border: 1px solid #dbe6f2;
    border-radius: 6px;
    color: #005bbb;
    background: white;
    font-size: 0.9rem;
    cursor: pointer;
}
#intake-photo-image { width: 100%; max-height: 50dvh; object-fit: contain; margin: 18px 0; }
#intake-photo-nfa { margin: 12px 0 0; font-size: 1rem; font-weight: 600; }
#intake-photo-colors { margin: 6px 0 0; font-size: 12px; line-height: 1.4; color: #53677f; overflow-wrap: anywhere; }
#intake-photo-unavailable { margin: 24px 0; font-size: 1rem; }

.intake-choice-group .is-selected-intake td {
    background-color: #e3f1ff;
    box-shadow: inset 0 1px #79b9f5, inset 0 -1px #79b9f5;
}


/* Error styling */
.errors {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
}

/* List and link styling */

.list-group {
   	 --bs-list-group-item-padding-x: 0rem;
	--bs-list-group-item-padding-y: 0 rem; 
}

.vent-results-list {
    padding: 0 10px 24px;
}

#calculation-results-section .vent-results-list.mt-3 {
    margin-top: 0 !important;
}

#calculation-results-section > :first-child {
    margin-top: 0;
}

.vent-result-item {
    background-color: transparent;
    border: 0;
    margin-bottom: 7px;
    padding: 0;
}

.results-instructions {
    align-items: center;
    background: #fff;
    border: 1px solid #d8e5f5;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 87, 184, 0.07);
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr) 18px;
    column-gap: 10px;
    margin: 0 10px 12px;
    padding: 12px 13px;
}

.results-instructions-icon {
    align-items: center;
    background-color: #0057b8;
    border-radius: 50%;
    color: #fff;
    display: flex;
    height: 34px;
    justify-content: center;
    width: 34px;
}

.results-instructions-copy {
    min-width: 0;
}

.results-instructions h3 {
    color: #0057b8;
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0 0 2px;
}

.results-instructions p {
    color: #334155;
    font-size: 0.92rem;
    margin: 0;
}

.results-instructions-arrow {
    color: #0057b8;
    font-size: 1.8rem;
}



a {
    color: #0057b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #004a96;
    text-decoration: underline;
}

/* Intake results */
.intake-results {
    background-color: #fff;
    border: 1px solid #cadbed;
    border-top: 0;
    border-radius: 0 0 10px 10px;
    box-shadow: 0 7px 14px rgba(0, 87, 184, 0.12);
    margin: 0;
    padding: 18px 14px 14px;
}

.intake-results table {
    width: 100%;
    border: 1px solid #dbe6f2;
    border-collapse: separate;
    border-radius: 8px;
    border-spacing: 0;
    margin: 13px 0 0;
    overflow: hidden;
    font-size: 0.74rem;
    text-align: center;
    table-layout: fixed;
}

.intake-results th, .intake-results td {
    border: 0;
    border-bottom: 1px solid #edf2f7;
    padding: 2px 4px;
    text-align: center;
    vertical-align: middle;
    word-break: break-word;
}

.intake-results th {
    background-color: #f0f6fd;
    color: #0f3768;
    font-weight: 700;
    line-height: 1.15;
}

.intake-results tr:nth-child(even) {
    background-color: #fbfdff;
}

.intake-results tbody tr:last-child td {
    border-bottom: 0;
}

.intake-results img {
    max-width: 80px;
    border-radius: 4px;
    display: block;
    margin: 0 auto;
}

.intake-warning {
    color: #721c24;
    background-color: #f8d7da;
    border: 1px solid #f5c6cb;
    padding: 10px;
    border-radius: 4px;
}

/* Accordion image cell */
.vent-card { display: grid; }
.vent-card > .accordion { grid-area: 1 / 1; }
.exhaust-photo-preview {
    grid-area: 1 / 1;
    align-self: center;
    justify-self: start;
    z-index: 1;
    width: 88px;
    height: 78px;
    margin-left: 14px;
    padding: 0;
    border: 0;
    border-radius: 6px;
    background: transparent;
    cursor: zoom-in;
}
.exhaust-photo-preview:hover { background: rgb(255 255 255 / 8%); }
.exhaust-photo-preview:focus-visible { outline: 2px solid white; outline-offset: -2px; }
.accordion .image-cell {
    align-items: center;
    display: flex;
    height: 78px;
    justify-content: center;
    min-width: 0;
}

.accordion .image-cell img {
    max-height: 78px;
    width: auto;
    max-width: 100%;
    object-fit: contain;
    display: block;
    margin: auto;
}

/* Accordion product styling */
.accordion .model-number-result {
    align-items: center;
    display: flex;
    flex-direction: column;
    line-height: 1.12;
    min-width: 0;
    text-align: center;
}

.accordion .model-number-result strong {
    font-size: 1.38rem;
    line-height: 1.1;
    overflow-wrap: anywhere;
    white-space: normal;
}

.accordion .model-number-result .product-model {
    font-size: 0.88rem;
    line-height: 1.15;
    margin-top: 6px;
}

.accordion .model-number-result.no-name .product-model {
    font-size: 1.24rem;
    font-weight: 700;
}

.accordion .model-number-result .nfa-info {
    font-size: 0.74rem;
    line-height: 1.15;
    margin-top: 6px;
    opacity: 0.9;
}

.accordion .vents-needed-result {
    display: flex;
    flex-direction: column;
    line-height: 1;
    text-align: center;
}

.accordion .vents-needed-count {
    font-size: 2.08rem;
    font-weight: 800;
}

.accordion .vents-needed-result .vents-label {
    font-size: 0.68rem;
    font-weight: 700;
    margin-top: 5px;
    text-transform: uppercase;
}

.accordion .vents-needed-result .intake-toggle-text {
    color: rgba(255, 255, 255, 0.92);
    display: block;
    font-size: 0.64rem;
    font-weight: 700;
    line-height: 1.1;
    margin-top: 10px;
    white-space: nowrap;
}

.accordion-chevron-wrap {
    align-items: center;
    display: flex;
    justify-content: center;
}

.accordion-chevron {
    flex: 0 0 auto;
    font-size: 1.05rem;
}

/* Responsive design adjustments */
@media (max-width: 768px) {
    .exhaust-photo-preview { width: 70px; height: 72px; margin-left: 10px; }
    .accordion {
        grid-template-columns: 70px minmax(0, 1fr) 72px 18px;
        column-gap: 9px;
        min-height: 88px;
        padding: 7px 10px;
    }
    .accordion .image-cell {
        height: 72px;
    }
    .accordion .image-cell img {
        max-height: 72px;
    }
    .accordion .model-number-result strong {
        font-size: 1.18rem;
    }
    .accordion .vents-needed-count {
        font-size: 1.7rem;
    }
    .panel img {
        max-width: 80px;
    }
}

@media (max-width: 480px) {
    .exhaust-photo-preview { width: 60px; height: 68px; margin-left: 9px; }
    .vent-results-list {
        padding-left: 8px;
        padding-right: 8px;
    }
    .results-instructions {
        grid-template-columns: 32px minmax(0, 1fr) 16px;
        margin-left: 8px;
        margin-right: 8px;
        padding: 11px 12px;
    }
    .results-instructions-icon {
        height: 32px;
        width: 32px;
    }
    .accordion {
        grid-template-columns: 60px minmax(0, 1fr) 62px 16px;
        column-gap: 8px;
        min-height: 82px;
        padding: 6px 9px;
    }
    .accordion .image-cell {
        height: 68px;
    }
    .accordion .image-cell img {
        max-height: 68px;
    }
    .accordion .model-number-result strong {
        font-size: 1.08rem;
        line-height: 1.12;
    }
    .accordion .model-number-result.no-name .product-model {
        font-size: 0.98rem;
    }
    .accordion .model-number-result .product-model {
        font-size: 0.78rem;
        margin-top: 5px;
    }
    .accordion .model-number-result .nfa-info {
        font-size: 0.68rem;
    }
    .accordion .vents-needed-count {
        font-size: 1.62rem;
    }
    .accordion .vents-needed-result .vents-label,
    .accordion .vents-needed-result .intake-toggle-text {
        font-size: 0.58rem;
    }
    .accordion .vents-needed-result .intake-toggle-text {
        margin-top: 7px;
    }
    .panel img {
        max-width: 60px;
    }
    .intake-results {
        padding: 16px 10px 12px;
    }
    .intake-results table {
        font-size: 0.67rem;
    }
    .intake-results th, .intake-results td {
        padding: 2px 3px;
    }
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f4f4f9;
}

::-webkit-scrollbar-thumb {
    background: #0057b8;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: #004a96;
}

/* Utility adjustments */
.my-4 {
    margin-top: 0 !important;
}

/* Intake vents header */
.intake-vents-header {
    color: #0057b8;
    font-size: 0.96rem;
    font-weight: 700;
    line-height: 1.18;
    margin: 0 0 4px;
}

.intake-results-summary {
    align-items: center;
    display: grid;
    grid-template-columns: 36px minmax(0, 1fr);
    column-gap: 10px;
    margin-bottom: 11px;
}

.intake-results-icon {
    align-items: center;
    background-color: #0057b8;
    border-radius: 50%;
    color: #fff;
    display: flex;
    height: 36px;
    justify-content: center;
    width: 36px;
}

.intake-results-copy {
    min-width: 0;
}

.intake-results-summary p {
    color: #334155;
    font-size: 0.78rem;
    font-weight: 700;
    line-height: 1.2;
    margin: 0;
}

.intake-results-note {
    color: #64748b;
    font-size: 0.7rem;
    line-height: 1.25;
    margin: 11px 0 0;
    text-align: center;
}

#attic-input-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin-bottom: 0;
}

#attic-input-section form {
    padding: 10px;
}

#attic-input-section .form-group {
    margin-bottom: 1px;
}

#attic-input-section .form-label {
    font-size: 1rem;
}

#attic-input-section .form-control:not(.vent-control-input):not(.vent-control-select),
#attic-input-section .form-select:not(.vent-control-select) {
    padding: 1px;
    font-size: 1rem;
}

#attic-input-section .form-group .btn {
    padding: 4px 50px;
    font-size: 0.9rem;
    margin-top: 4px;
}

#attic-input-section > form > div:nth-child(3) > p {
    margin-bottom: 1px;
}

/* Hide the first column in the intake results table */
.intake-results table th:nth-child(1),
.intake-results table td:nth-child(1) {
    display: none;
}

.product-model {
    white-space: normal;
    word-wrap: break-word;
}

@media print {
    /* Hide everything */
    body * {
        display: none;
    }
}

/* Ensure all three fields are displayed on one row */
.d-flex.gap-2 {
    display: flex;
    gap: 10px;
    align-items: flex-end;
    flex-wrap: nowrap;
}

.form-control,
.form-select {
    width: 39%; /* Ensure inputs fill the available space */
}


body.initial-state .container {
   /* min-height: 125px;*/
    padding-bottom: 0px;
}


.button-container {
    display: flex;
    justify-content: center; /* Centers buttons horizontally */
    align-items: center; /* Aligns buttons vertically */
    gap: 10px; /* Adds spacing between buttons */
    margin-top: 10px; /* Adjust spacing */
}

.button-container .btn {
    padding: 6px 15px;
    font-size: 0.9rem;
}

.vent-control-panel {
    background-color: #fff;
    border: 1px solid #d6e1ee;
    border-radius: 8px !important;
    box-shadow: 0 4px 14px rgba(15, 54, 92, 0.08);
    display: flex;
    flex-direction: column;
    gap: 7px;
    margin: 0 auto;
    max-width: 600px;
    padding: 9px !important;
    width: 100%;
}

.vent-control-row {
    align-items: center;
    background-color: #f8fafc;
    border: 1px solid #e3e9f1;
    border-radius: 6px;
    display: flex;
    gap: 10px;
    justify-content: space-between;
    min-height: 40px;
    padding: 6px 10px;
    width: 100%;
}

.square-footage-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
}

.selector-row {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
}

.conditional-control-row {
    margin-top: 0;
}

.crawlspace-height-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
}

.vent-control-label {
    color: #1f2937;
    font-size: 0.95rem;
    font-weight: 600;
    line-height: 1.15;
    margin: 0;
    min-width: 0;
}

.vent-control-field-unit {
    align-items: center;
    background-color: #fff;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    display: inline-flex;
    justify-content: flex-end;
    min-height: 34px;
    overflow: hidden;
}

.square-footage-field {
    min-width: 150px;
}

.crawlspace-height-field {
    min-width: 94px;
}

.vent-control-input,
.vent-control-panel .vent-control-input {
    background-color: transparent;
    border: 0;
    border-radius: 0;
    color: #111827;
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.1;
    margin: 0;
    min-height: 32px;
    padding: 3px 9px;
    text-align: center;
    width: 100%;
}

.vent-control-select-wrap {
    align-items: center;
    display: grid;
    min-width: 0;
    position: relative;
}

.vent-control-select,
.vent-control-panel .vent-control-select {
    -webkit-appearance: none;
    appearance: none;
    background-color: transparent;
    background-image: none;
    border: 0;
    border-radius: 0;
    color: #111827;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.2;
    margin: 0;
    min-height: 32px;
    min-width: 0;
    padding: 3px 28px 3px 8px;
    text-align: right;
    text-align-last: right;
    width: 100%;
}

.vent-control-select-icon {
    color: #0057b8;
    font-size: 0.78rem;
    pointer-events: none;
    position: absolute;
    right: 8px;
}

.vent-control-unit {
    background-color: #eef4fb;
    border-left: 1px solid #d6e1ee;
    color: #334155;
    font-size: 0.9rem;
    font-weight: 700;
    height: 100%;
    line-height: 1;
    padding: 10px 9px;
    white-space: nowrap;
}

.vent-message-row {
    background-color: #fff;
    justify-content: center;
    min-height: 32px;
    padding-bottom: 5px;
    padding-top: 5px;
    text-align: center;
}

.vent-message-row p {
    color: #334155;
    font-size: 0.91rem;
    font-weight: 600;
    line-height: 1.2;
    margin: 0;
}

.exhaust-highlight {
    color: #f15f64;
}

.vent-control-note {
    background-color: #fff6f6;
    border: 1px solid #f0cccc;
    border-radius: 6px;
    color: #8a1f1f;
    padding: 7px 10px;
    width: 100%;
}

.vent-control-note p {
    font-size: 0.72rem;
    font-weight: 600;
    line-height: 1.25;
    margin: 0;
}

.vent-control-panel .button-container {
    flex-wrap: wrap;
    background-color: transparent;
    border: 0;
    gap: 12px;
    justify-content: center;
    margin-top: 0;
    min-height: 38px;
    padding: 2px 4px 0;
}

.vent-control-panel .button-container .btn {
    border: 0;
    border-radius: 7px;
    font-size: 0.9rem;
    font-weight: 700;
    line-height: 1;
    margin: 0;
    min-height: 34px;
    padding: 7px 18px;
    transition: background-color 0.12s ease, border-color 0.12s ease, color 0.12s ease, transform 0.08s ease;
}

.vent-control-panel .button-container .btn-primary {
    background-color: #0875e8;
    min-width: 112px;
}

.vent-control-panel .button-container .btn-primary:hover {
    background-color: #066bd4;
}

.vent-control-panel .button-container .btn-primary:active {
    background-color: #005ec0;
    transform: translateY(1px);
}

.vent-control-panel .button-container .share-button {
    background-color: #fff;
    border: 1px solid #0057b8;
    color: #0057b8;
    min-width: 160px;
}

.vent-control-panel .button-container .share-button:hover {
    background-color: #f0f7ff;
}

.vent-control-panel .button-container .share-button:active {
    background-color: #dbeeff;
    border-color: #004a96;
    color: #004a96;
    transform: translateY(1px);
}

.vent-control-panel #vent-report-preview {
    background-color: #fff;
    border: 1px solid #0057b8;
    color: #0057b8;
}

.vent-control-panel #vent-report-preview:hover {
    background-color: #f0f7ff;
}

.vent-control-panel .button-container .btn:focus-visible,
.vent-control-input:focus,
.vent-control-select:focus,
.vent-control-field-unit:focus-within {
    box-shadow: 0 0 0 3px rgba(0, 87, 184, 0.25);
    outline: none;
}

@media (max-width: 480px) {
    #calculation-results-section {
        margin-top: max(0px, calc(var(--vent-fixed-offset, 264px) - 18px));
    }

    .vent-control-panel {
        padding: 8px !important;
    }

    .vent-control-row {
        gap: 8px;
        min-height: 40px;
        padding: 6px 9px;
    }

    .square-footage-row {
        grid-template-columns: minmax(0, 1fr) auto;
    }

    .crawlspace-height-row {
        grid-template-columns: minmax(0, 1fr) auto;
    }

    .vent-control-label {
        font-size: 0.92rem;
    }

    .vent-control-input,
    .vent-control-panel .vent-control-input {
        font-size: 1rem;
        min-height: 32px;
        padding-left: 5px;
        padding-right: 5px;
    }

    .vent-control-select,
    .vent-control-panel .vent-control-select {
        font-size: 0.95rem;
        padding-left: 4px;
    }

    .vent-control-unit {
        font-size: 0.82rem;
        padding: 10px 7px;
    }

    .vent-message-row p {
        font-size: 0.86rem;
    }

    .vent-control-panel .button-container {
        gap: 8px;
    }

    .vent-control-panel .button-container .btn {
        min-height: 34px;
        padding-left: 14px;
        padding-right: 14px;
    }

    .vent-control-panel .button-container .btn-primary {
        min-width: 100px;
    }

    .vent-control-panel .button-container .share-button {
        min-width: 148px;
    }
}

@media (min-width: 361px) and (max-width: 480px) {
    .square-footage-row {
        gap: 6px;
        grid-template-columns: minmax(0, 1fr) clamp(118px, 30vw, 126px);
        padding-left: 7px;
        padding-right: 7px;
    }

    .square-footage-field {
        min-width: 0;
        width: clamp(118px, 30vw, 126px);
    }

    .square-footage-input,
    .vent-control-panel .square-footage-input {
        flex: 1 1 auto;
        min-width: 64px;
        padding-left: 3px;
        padding-right: 3px;
    }

    .square-footage-row .vent-control-unit {
        flex: 0 0 auto;
        padding-left: 6px;
        padding-right: 6px;
    }
}

@media (min-width: 361px) and (max-width: 430px) {
    .square-footage-row .vent-control-label {
        font-size: 0.88rem;
    }
}

@media (min-width: 431px) and (max-width: 480px) {
    .square-footage-row {
        grid-template-columns: minmax(0, 1fr) clamp(120px, 30vw, 126px);
    }

    .square-footage-field {
        width: clamp(120px, 30vw, 126px);
    }
}

@media (min-width: 481px) and (max-width: 520px) {
    .square-footage-row {
        gap: 6px;
        grid-template-columns: minmax(0, 1fr) 126px;
        padding-left: 7px;
        padding-right: 7px;
    }

    .square-footage-field {
        min-width: 0;
        width: 126px;
    }

    .square-footage-input,
    .vent-control-panel .square-footage-input {
        flex: 1 1 auto;
        min-width: 64px;
        padding-left: 3px;
        padding-right: 3px;
    }

    .square-footage-row .vent-control-unit {
        flex: 0 0 auto;
        padding-left: 6px;
        padding-right: 6px;
    }
}

@media (max-width: 360px) {
    .square-footage-row,
    .crawlspace-height-row {
        grid-template-columns: 1fr;
    }

    .vent-control-input,
    .vent-control-panel .vent-control-input {
        max-width: 120px;
    }

    .vent-control-field-unit {
        justify-self: start;
        min-width: 0;
    }

    .selector-row {
        grid-template-columns: 1fr;
    }

    .vent-control-select,
    .vent-control-panel .vent-control-select {
        padding-left: 0;
        text-align: left;
        text-align-last: left;
    }

    .vent-control-panel .button-container {
        flex-direction: column;
    }

    .vent-control-panel .button-container .btn {
        width: 100%;
    }
}

/* Passive attic ratio controls; all changes stay on the calculator page. */
.attic-calculator-page [hidden] {
    display: none !important;
}

.attic-ratio-row {
    align-items: center;
    background: #fff;
    display: grid;
    gap: 8px;
    grid-template-areas: "ratio summary";
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
    padding: 5px 8px;
}

.attic-exhaust-summary {
    grid-area: summary;
    flex: 0 1 43%;
    min-width: 0;
    position: relative;
    text-align: center;
}

.attic-exhaust-summary.is-calculating .attic-exhaust-line,
.attic-exhaust-summary.is-calculating .attic-ratio-caption,
.attic-exhaust-summary.is-stale .attic-exhaust-line,
.attic-exhaust-summary.is-stale .attic-ratio-caption {
    visibility: hidden;
}

.attic-loading-message {
    align-items: center;
    display: flex;
    font-size: 0.9rem;
    inset: 0;
    justify-content: center;
    margin: 0;
    position: absolute;
}

.attic-exhaust-line {
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.3;
    margin: 0;
}

.attic-ratio-caption {
    font-size: 0.8rem;
    line-height: 1.3;
    margin: 1px 0 0;
}

.attic-ratio-choice {
    grid-area: ratio;
    border: 0;
    flex: 1 1 0;
    margin: 0;
    min-width: 0;
    padding: 0;
    position: relative;
}

.attic-ratio-heading {
    align-items: center;
    display: flex;
    font-size: 0.86rem;
    font-weight: 700;
    gap: 6px;
    justify-content: center;
    line-height: 1.2;
    margin: 0;
    min-height: 26px;
    padding: 0 0 2px;
    width: 100%;
}

.attic-exhaust-quantity {
    display: block;
}

.attic-ratio-buttons {
    display: grid;
    gap: 3px;
    grid-template-columns: minmax(0, 1fr);
}

.attic-ratio-buttons input {
    clip-path: inset(50%);
    height: 1px;
    overflow: hidden;
    position: absolute;
    white-space: nowrap;
    width: 1px;
}

.attic-ratio-buttons label {
    align-items: center;
    background: #edf0f3;
    border: 1px solid #c4cbd3;
    border-radius: 7px;
    color: #626d79;
    cursor: pointer;
    display: flex;
    font-size: 1rem;
    font-weight: 700;
    justify-content: center;
    margin: 0;
    min-height: 34px;
    padding: 3px 8px;
}

.attic-ratio-buttons input:checked + label {
    background: #0875e8;
    border-color: #0875e8;
    color: #fff;
}

.attic-ratio-buttons input:focus-visible + label,
.attic-ratio-help summary:focus-visible {
    outline: 3px solid #163d68;
    outline-offset: 2px;
}

.attic-ratio-help {
    flex: 0 0 auto;
    z-index: 2;
}

.attic-ratio-help summary {
    align-items: center;
    border: 1px solid #0057b8;
    border-radius: 50%;
    color: #0057b8;
    cursor: pointer;
    display: flex;
    font-size: 0.85rem;
    font-weight: 700;
    height: 24px;
    justify-content: center;
    list-style: none;
    width: 24px;
}

.attic-ratio-help summary::-webkit-details-marker {
    display: none;
}

.attic-ratio-help p {
    background: #fff;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    box-shadow: 0 4px 14px rgba(15, 54, 92, 0.15);
    font-size: 0.85rem;
    line-height: 1.4;
    margin: 6px 0 0;
    padding: 12px;
    position: absolute;
    left: 0;
    top: 24px;
    width: min(300px, calc(100vw - 64px));
}

#attic-calculation-status {
    font-size: 0.85rem;
    margin: 0;
    text-align: center;
}

.attic-calculator-page.vent-controls-scroll #fixed-container {
    position: static;
}

.attic-calculator-page.vent-controls-scroll #calculation-results-section {
    margin-top: 12px;
}

.attic-calculator-page.vent-controls-scroll .square-footage-row,
.attic-calculator-page.vent-controls-scroll .selector-row,
.attic-calculator-page.vent-controls-scroll .crawlspace-height-row {
    grid-template-columns: minmax(0, 1fr);
}

.attic-calculator-page.vent-controls-scroll .vent-control-field-unit {
    width: 100%;
    min-width: 0;
}

.attic-calculator-page.vent-controls-scroll .vent-control-input {
    min-width: 0;
    max-width: none;
}

.attic-calculator-page.vent-controls-scroll .button-container {
    flex-wrap: wrap;
}

.attic-calculator-page.vent-controls-scroll .button-container .btn {
    max-width: 100%;
    white-space: normal;
    overflow-wrap: anywhere;
}

@media (max-width: 560px) {
    .attic-exhaust-line {
        font-size: 0.86rem;
    }

    .attic-ratio-heading {
        font-size: 0.8rem;
    }
}