:root {
    --color-blue-navy: #0B2E6B;
    --color-blue-ui: #178AE8;
    --color-blue-soft: #EAF2FF;
    --color-orange: #FF7A00;
    --color-orange-dark: #D96500;
    --color-orange-soft: #FFF1E7;
    --color-primary: var(--color-blue-ui);
    --color-primary-dark: var(--color-blue-navy);
    --color-accent: var(--color-orange);
    --color-background: #F8FAFC;
    --color-surface: #FFF;
    --color-surface-muted: #F2F4F7;
    --color-text: #1F2937;
    --color-text-muted: #5B667A;
    --color-border: #E5E7EB;
    --color-info-background: #EEF5FF;
    --color-warning-background: #FFF7E8;
    --color-success-background: #EEF9F2;
    --font-base: Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    --container-wide: 1200px;
    --container-reading: 820px;
    --radius-small: 8px;
    --radius-medium: 12px;
    --radius-large: 18px;
    --radius-pill: 999px;
    --shadow-soft: 0 8px 24px rgba(15,23,42,.06);
    --shadow-hover: 0 12px 28px rgba(15,23,42,.10);
    --space-1: .5rem;
    --space-2: 1rem;
    --space-3: 1.5rem;
    --space-4: 2.5rem;
    --space-5: 4rem;
    --transition-fast: 160ms ease;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background: var(--color-background);
    color: var(--color-text);
    font: 16px/1.7 var(--font-base);
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    height: auto;
}

a {
    color: var(--color-blue-navy);
    font-weight: 600;
    text-underline-offset: .2em;
    text-decoration-thickness: 1px;
}

a:hover {
    color: var(--color-blue-ui);
    text-decoration-thickness: 2px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible {
    outline: 3px solid rgba(23,138,232,.3);
    outline-offset: 3px;
}

.container {
    width: 100%;
    max-width: calc(var(--container-wide) + 3rem);
    margin-inline: auto;
    padding-inline: clamp(1rem,4vw,1.5rem);
    box-sizing: border-box;
}

.reading {
    max-width: var(--container-reading);
}

.skip-link {
    position: absolute;
    left: -9999px;
}

.skip-link:focus {
    left: 1rem;
    top: 1rem;
    z-index: 100;
    background: #fff;
    padding: .75rem 1rem;
    border-radius: var(--radius-small);
    box-shadow: var(--shadow-soft);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255,255,255,.97);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 3px 16px rgba(15,23,42,.035);
    backdrop-filter: blur(12px);
}

.nav {
    min-height: 82px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.nav nav {
    display: flex;
    align-items: center;
    gap: .2rem;
    font-size: .9rem;
}

.nav nav>a:not(.button),
.nav nav span {
    position: relative;
    padding: .65rem .7rem;
    color: var(--color-text);
    text-decoration: none;
    white-space: nowrap;
}

.nav nav>a:not(.button):hover,
.nav nav>a:not(.button).active {
    color: var(--color-blue-ui);
}

.nav nav>a:not(.button).active:after {
    content: "";
    position: absolute;
    left: .7rem;
    right: .7rem;
    bottom: .15rem;
    height: 2px;
    background: var(--color-blue-ui);
    border-radius: 2px;
}

.nav nav span {
    color: #9CA3AF;
}

.menu-toggle {
    display: none;
    align-items: center;
    gap: .5rem;
    background: #fff;
    color: var(--color-blue-navy);
    border: 1px solid #C9D7EE;
    border-radius: var(--radius-small);
    padding: .65rem .8rem;
    font: 700 .9rem var(--font-base);
}

.menu-toggle-icon,
.menu-toggle-icon:before,
.menu-toggle-icon:after {
    display: block;
    width: 19px;
    height: 2px;
    background: currentColor;
    content: "";
}

.menu-toggle-icon:before {
    transform: translateY(-6px);
}

.menu-toggle-icon:after {
    transform: translateY(4px);
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .45rem;
    min-height: 46px;
    background: var(--color-orange);
    color: #fff;
    border: 1px solid var(--color-orange);
    border-radius: var(--radius-small);
    padding: .7rem 1.15rem;
    font: 700 .94rem/1.2 var(--font-base);
    text-decoration: none;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(255,122,0,.18);
    transition: background var(--transition-fast),border-color var(--transition-fast),box-shadow var(--transition-fast),transform var(--transition-fast);
}

.button:hover {
    background: var(--color-orange-dark);
    border-color: var(--color-orange-dark);
    color: #fff;
    box-shadow: 0 7px 18px rgba(255,122,0,.24);
    transform: translateY(-1px);
}

.button.secondary {
    background: #fff;
    color: var(--color-blue-navy);
    border-color: #C9D7EE;
    box-shadow: none;
}

.button.secondary:hover {
    background: var(--color-blue-soft);
    border-color: var(--color-blue-ui);
    color: var(--color-blue-navy);
}

.button.ui {
    background: var(--color-blue-ui);
    border-color: var(--color-blue-ui);
    box-shadow: 0 4px 12px rgba(23,138,232,.18);
}

.button[aria-disabled=true],
.button:disabled {
    opacity: .55;
    cursor: not-allowed;
    box-shadow: none;
}

.hero {
    padding: clamp(3rem,7vw,5.5rem) 0;
    background: linear-gradient(115deg,#F5F9FF 0%,#EAF2FF 55%,#FFF8F1 100%);
    border-bottom: 1px solid #DCE8F8;
    overflow: hidden;
}

.hero .container {
    position: relative;
}

.hero h1 {
    max-width: 900px;
    margin: .25rem 0 1rem;
    color: var(--color-blue-navy);
    font-size: clamp(2rem,4vw,3rem);
    line-height: 1.1;
    letter-spacing: -.035em;
}

.hero .lead {
    max-width: 700px;
}

.home-hero .container>div {
    max-width: 760px;
}

.lead {
    font-size: clamp(1.08rem,1.5vw,1.22rem);
    line-height: 1.65;
    color: var(--color-text-muted);
}

.eyebrow {
    margin-bottom: .35rem;
    text-transform: uppercase;
    letter-spacing: .09em;
    font-size: .76rem;
    font-weight: 800;
    color: var(--color-blue-ui);
}

.actions {
    display: flex;
    gap: .8rem;
    flex-wrap: wrap;
    margin-top: 1.75rem;
}

.section {
    padding-block: clamp(3.25rem,7vw,var(--space-5));
}

.surface {
    background: var(--color-surface);
    border-block: 1px solid #EDF0F3;
}

.section-heading {
    max-width: 720px;
    margin-bottom: 2rem;
}

.section-heading h2 {
    margin: .25rem 0 .7rem;
}

h2 {
    color: var(--color-blue-navy);
    font-size: clamp(1.5rem,3vw,2.25rem);
    line-height: 1.2;
    letter-spacing: -.02em;
}

h3 {
    color: var(--color-blue-navy);
    line-height: 1.3;
}

.grid {
    display: grid;
    gap: var(--space-3);
}

.cards {
    grid-template-columns: repeat(4,minmax(0,1fr));
}

.three {
    grid-template-columns: repeat(3,minmax(0,1fr));
}

.card {
    position: relative;
    padding: 1.5rem;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-soft);
}

.article-card__type {
    display: block;
}

.article-card__title {
    margin: .2rem 0 .7rem;
    font-size: 1.17em;
    line-height: 1.3;
    letter-spacing: normal;
}

.article-card__excerpt {
    color: var(--color-text-muted);
}

.article-card__cta {
    display: inline-flex;
    align-items: center;
    margin-top: auto;
    padding-top: .5rem;
    color: var(--color-blue-ui);
    text-decoration: underline;
    text-underline-offset: .15em;
}

.card h2,
.card h3 {
    margin: .2rem 0 .7rem;
}

.card p {
    color: var(--color-text-muted);
}

.soon {
    display: inline-flex;
    padding: .3rem .65rem;
    border-radius: var(--radius-pill);
    background: var(--color-surface-muted);
    font-size: .84rem;
    color: var(--color-text-muted);
}

.split {
    display: grid;
    grid-template-columns: 1.15fr .85fr;
    gap: clamp(2rem,5vw,4rem);
    align-items: center;
}

.callout {
    background: var(--color-info-background);
    border: 1px solid #C9DDFB;
    border-left: 4px solid var(--color-blue-ui);
    padding: 1.35rem 1.5rem;
    border-radius: var(--radius-medium);
}

.cta {
    margin-top: var(--space-5);
    padding: clamp(1.5rem,4vw,2.5rem);
    background: var(--color-blue-navy);
    color: #fff;
    border-radius: var(--radius-large);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    box-shadow: 0 14px 34px rgba(11,46,107,.16);
}

.cta .eyebrow {
    color: #9DCAFF;
}

.cta h2 {
    margin: .2rem 0;
    color: #fff;
}

.cta .secondary {
    color: #fff;
    border-color: rgba(255,255,255,.7);
    background: transparent;
}

.cta .secondary:hover {
    background: #fff;
    color: var(--color-blue-navy);
}

.breadcrumb {
    overflow: visible;
    padding-top: 1.15rem;
}

.breadcrumb ol {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: .25rem .5rem;
    max-width: 100%;
    min-width: 0;
    list-style: none;
    padding: 0;
    margin: .4rem 0;
    font-size: .86rem;
    white-space: normal;
}

.breadcrumb li {
    display: inline-flex;
    align-items: baseline;
    min-width: 0;
    max-width: 100%;
}

.breadcrumb a,
.breadcrumb [aria-current="page"] {
    min-width: 0;
    max-width: 100%;
    overflow-wrap: anywhere;
    word-break: normal;
}

.breadcrumb li+li:before {
    content: '›';
    margin-right: .5rem;
    color: var(--color-text-muted);
}

.toc {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    padding: 1.25rem;
    box-shadow: var(--shadow-soft);
    margin-bottom: var(--space-4);
}

.toc strong {
    color: var(--color-blue-navy);
}

.toc ol {
    columns: 2;
}

.toc a {
    font-size: .9rem;
    text-decoration: none;
}

.markdown {
    font-size: 1.04rem;
}

.markdown h2 {
    margin-top: 3rem;
    scroll-margin-top: 7rem;
}

.markdown h3 {
    margin-top: 2rem;
}

.markdown p,
.markdown li {
    max-width: 72ch;
}

.markdown ol {
    padding-left: 1.5rem;
    margin: 1rem 0 1.5rem;
}

.markdown ol li {
    padding-left: .25rem;
    margin: .4rem 0;
    line-height: 1.65;
}

.markdown a {
    color: var(--color-blue-ui);
}

.markdown blockquote {
    margin: 1.5rem 0;
    padding: 1rem 1.5rem;
    background: var(--color-warning-background);
    border-left: 4px solid var(--color-orange);
    border-radius: 0 var(--radius-medium) var(--radius-medium) 0;
}

.table-wrap {
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    box-shadow: var(--shadow-soft);
    margin: 1.5rem 0;
}

.table-wrap table {
    width: 100%;
    min-width: 620px;
    border-collapse: collapse;
    background: #fff;
}

.table-wrap th,
.table-wrap td {
    text-align: left;
    padding: .85rem 1rem;
    border: 1px solid var(--color-border);
    empty-cells: show;
}

.table-wrap td:empty:after {
    content: '\00a0';
}

.table-wrap th {
    background: var(--color-blue-soft);
    color: var(--color-blue-navy);
    font-size: .9rem;
}

.sources {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

.site-footer {
    margin-top: var(--space-5);
    padding: 3.5rem 0 1.5rem;
    background: var(--color-blue-navy);
    color: #fff;
}

.site-footer a {
    color: #DCEBFF;
    display: block;
    width: max-content;
    max-width: 100%;
    margin: .45rem 0;
    text-decoration: none;
    font-weight: 500;
}

.site-footer a:hover {
    color: #fff;
    text-decoration: underline;
}

.site-footer strong {
    display: block;
    margin-bottom: .75rem;
    color: #fff;
}

.footer-brand {
    font-size: 1.25rem;
}

.footer-brand span {
    color: #FF9A3D;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: clamp(2rem,5vw,4rem);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 2.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid rgba(255,255,255,.16);
}

.footer-bottom-links {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: .5rem 1rem;
    flex-wrap: wrap;
}

.footer-bottom-links a {
    margin: 0;
}

.small {
    font-size: .84rem;
    color: #BED0EA;
}

@media (max-width:1050px) {
    .nav nav {
        gap: 0;
    }

    .nav nav>a:not(.button),
    .nav nav span {
        padding-inline: .48rem;
    }

    .cards {
        grid-template-columns: repeat(2,minmax(0,1fr));
    }

}

@media (max-width:850px) {
    body {
        font-size: 16px;
    }

    .site-header {
        backdrop-filter: none;
    }

    .nav {
        min-height: 72px;
    }

    .menu-toggle {
        display: inline-flex;
    }

    .nav nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        padding: 1rem;
        flex-direction: column;
        align-items: stretch;
        border-bottom: 1px solid var(--color-border);
        box-shadow: 0 15px 30px rgba(15,23,42,.1);
        z-index: 5;
    }

    .nav nav.open {
        display: flex;
    }

    .nav nav>a:not(.button),
    .nav nav span {
        padding: .75rem;
    }

    .nav nav>a:not(.button).active:after {
        left: .75rem;
        right: auto;
        width: 30px;
        bottom: .35rem;
    }

    .split,
    .footer-grid {
        grid-template-columns: 1fr;
    }

    .cta {
        align-items: flex-start;
        flex-direction: column;
    }

    .footer-bottom {
        flex-direction: column;
    }

}

@media (max-width:520px) {
    .cards,
    .three {
        grid-template-columns: 1fr;
    }

    .hero {
        padding: 2.8rem 0;
    }

    .toc ol {
        columns: 1;
    }

    .actions {
        flex-direction: column;
    }

    .actions .button {
        width: 100%;
    }

    .card {
        padding: 1.25rem;
    }

}

@media (prefers-reduced-motion:reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *:before,
    *:after {
        transition: none!important;
    }

}

.article-card--linked {
    position: relative;
    isolation: isolate;
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    cursor: pointer;
    transition: transform var(--transition-fast),box-shadow var(--transition-fast),border-color var(--transition-fast);
}

.article-card--linked:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    border-color: #B9D5F2;
}

.article-card--linked:focus-within {
    outline: 3px solid var(--color-blue-ui);
    outline-offset: 3px;
}

.article-card__title,
.article-card__stretched-link {
    position: static;
}

.article-card__stretched-link {
    color: inherit;
    text-decoration: none;
}

.article-card__stretched-link:hover {
    color: inherit;
    text-decoration: none;
}

.article-card__stretched-link::after {
    position: absolute;
    inset: 0;
    z-index: 10;
    content: "";
    border-radius: var(--radius-large);
    pointer-events: auto;
}

.article-card__stretched-link:focus-visible {
    outline: none;
}

.article-card__type,
.article-card__excerpt,
.article-card__cta {
    position: relative;
    z-index: 0;
}

@media (max-width:520px) {
    .article-card--linked {
        padding: 1.25rem;
    }

}

.breadcrumb {
    min-width: 0;
    overflow: visible;
}

.breadcrumb .breadcrumb__list {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: .25rem .5rem;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    margin: .4rem 0;
    padding: 0;
    overflow: visible;
    list-style: none;
    white-space: normal;
}

.breadcrumb__item {
    display: inline-flex;
    align-items: baseline;
    min-width: 0;
    max-width: 100%;
}

.breadcrumb__item a,
.breadcrumb__item--current {
    min-width: 0;
    max-width: 100%;
    white-space: normal;
    overflow-wrap: anywhere;
    word-break: normal;
}

.breadcrumb .breadcrumb__item+.breadcrumb__item::before {
    content: none;
}

.breadcrumb__item:not(:last-child)::after {
    content: '›';
    flex: 0 0 auto;
    margin-inline-start: .5rem;
    color: var(--color-text-muted);
}

.guide-layout {
    display: grid;
    grid-template-columns: minmax(220px,280px) minmax(0,var(--container-reading));
    gap: clamp(2rem,5vw,4rem);
    justify-content: center;
    margin-top: clamp(2rem,4vw,3rem);
    min-width: 0;
}

.guide-layout {
    align-items: start;
}

.guide-layout>*,
.guide-content,
.toc {
    min-width: 0;
    max-width: 100%;
}

.guide-content {
    width: 100%;
    padding-inline: 0;
}

.guide-layout>aside {
    position: sticky;
    top: 104px;
    max-height: calc(100vh - 128px);
    max-height: calc(100dvh - 128px);
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
}

.toc {
    width: 100%;
    box-sizing: border-box;
}

.guide-layout .toc ol {
    columns: 1;
    max-width: 100%;
    min-width: 0;
    margin: 0;
    padding-inline-start: 1.25rem;
}

.guide-layout .toc li {
    max-width: 100%;
    min-width: 0;
}

.guide-layout .toc a {
    display: block;
    max-width: 100%;
    min-width: 0;
    white-space: normal;
    overflow-wrap: anywhere;
}

.guide-content section,
.guide-content p,
.guide-content h2,
.guide-content h3,
.guide-content ol,
.guide-content ul,
.guide-content blockquote,
.guide-content pre,
.guide-content code,
.guide-content .formula,
.guide-content .editorial-block,
.guide-content .callout,
.guide-content .table-wrap {
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
}

.guide-content h2,
.guide-content h3 {
    overflow-wrap: break-word;
}

.guide-content pre,
.guide-content .formula,
.guide-content .table-wrap {
    overflow-x: auto;
}

.guide-content .editorial-block,
.guide-content .callout {
    width: 100%;
    margin-inline: 0;
}

.related-cards {
    grid-template-columns: repeat(2,minmax(0,1fr));
}

.editorial-block {
    margin: 1.5rem 0;
    padding: 1.15rem 1.35rem;
    border-radius: var(--radius-medium);
    border: 1px solid var(--color-border);
}

.editorial-block.summary,
.editorial-block.info {
    background: var(--color-info-background);
    border-left: 4px solid var(--color-blue-ui);
}

.editorial-block.warning {
    background: var(--color-warning-background);
    border-left: 4px solid var(--color-orange);
}

.editorial-block.checklist {
    background: var(--color-surface);
    box-shadow: var(--shadow-soft);
}

.editorial-block p:last-child,
.editorial-block ul:last-child {
    margin-bottom: 0;
}

.feature-card {
    border-top: 4px solid var(--color-orange);
}

.pillar-subsection {
    margin-top: var(--space-5);
}

.site-tree-section {
    padding-top: 2.5rem;
}

.site-tree {
    max-width: 820px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-top: 4px solid var(--color-orange);
    border-radius: var(--radius-large);
    padding: clamp(1.25rem,4vw,2rem);
    box-shadow: var(--shadow-soft);
}

.site-tree ul {
    list-style: none;
    margin: 0;
    padding: 0;
}

.site-tree ul ul {
    margin: .35rem 0 .65rem .6rem;
    padding-left: 1.25rem;
    border-left: 2px solid #D6E5F7;
}

.site-tree li {
    position: relative;
    margin: .35rem 0;
}

.site-tree ul ul>li:before {
    position: absolute;
    left: -1.25rem;
    top: .9rem;
    width: .75rem;
    border-top: 1px solid #AFC8E6;
    content: "";
}

.button:active {
    transform: translateY(1px);
}

.button[aria-disabled=true] {
    cursor: not-allowed;
}

@media (max-width:850px) {
    .guide-layout {
        display: block;
        width: 100%;
        min-width: 0;
    }

    .guide-layout>aside {
        position: static;
        inset: auto;
        width: 100%;
        max-width: 100%;
        max-height: none;
        min-width: 0;
        overflow-y: visible;
        overscroll-behavior: auto;
        scrollbar-gutter: auto;
    }

    .toc {
        margin-inline: 0;
    }

    .related-cards {
        grid-template-columns: minmax(0,1fr);
    }

}

@media (max-width:520px) {
    .site-tree {
        padding: 1rem;
    }

    .site-tree ul ul {
        margin-left: .25rem;
        padding-left: 1rem;
    }

    .site-tree ul ul>li:before {
        left: -1rem;
        width: .6rem;
    }

}

.preview-banner {
    padding: 1rem;
    background: #382d56;
    color: #fff;
    text-align: center;
}

.calculator-form {
    display: grid;
    grid-template-columns: 2fr 1fr 2fr auto;
    gap: 1rem;
    align-items: start;
    background: #fff;
    padding: clamp(1.25rem,3vw,2rem);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-soft);
}

.calculator-form > div {
    min-width: 0;
}

.calculator-form label,
.calculator-form small {
    display: block;
}

.calculator-form label {
    min-height: 3em;
    margin-bottom: .35rem;
    color: var(--color-blue-navy);
    font-weight: 700;
}

.calculator-form > .button {
    margin-top: calc(3em + .35rem);
}

.calculator-form small {
    margin-top: .35rem;
    color: var(--color-text-muted);
    font-size: .78rem;
}

.calculator-form input,
.calculator-form select {
    width: 100%;
    min-height: 46px;
    padding: .65rem .75rem;
    background: #fff;
    color: var(--color-text);
    border: 1px solid #C9D1DC;
    border-radius: var(--radius-small);
    font: inherit;
    transition: border-color var(--transition-fast),box-shadow var(--transition-fast);
}

.calculator-form input:hover,
.calculator-form select:hover {
    border-color: #9FB2CC;
}

.calculator-form input:focus,
.calculator-form select:focus {
    border-color: var(--color-blue-ui);
    box-shadow: 0 0 0 3px rgba(23,138,232,.12);
    outline: 0;
}

.state-error {
    margin: .35rem 0 0;
    color: #B42318;
    font-size: .86rem;
    font-weight: 600;
}

.calculator-result {
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--color-info-background);
    border: 1px solid #C9DDFB;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-soft);
}

.calculator-result h2 {
    margin-top: 0;
}

.calculator-result strong {
    color: var(--color-blue-navy);
    font-size: 1.3rem;
}

.estimate-steps {
    list-style: none;
    padding: 0;
    counter-reset: steps;
}

.estimate-steps li {
    counter-increment: steps;
    display: grid;
    grid-template-columns: 3rem 1fr;
    gap: .25rem 1rem;
    margin: 1rem 0;
    padding: 1.15rem;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    box-shadow: var(--shadow-soft);
}

.estimate-steps li:before {
    content: counter(steps);
    grid-row: 1/3;
    display: grid;
    place-items: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background: var(--color-blue-ui);
    color: #fff;
    font-weight: 800;
}

.estimate-steps span {
    grid-column: 2;
    color: var(--color-text-muted);
}

@media (max-width:850px) {
    .calculator-form {
        grid-template-columns: 1fr;
    }

    .calculator-form label {
        min-height: 0;
    }

    .calculator-form > .button {
        margin-top: 0;
    }

}

.site-brand {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
    min-width: 0;
    overflow: visible;
    text-decoration: none;
}

.site-brand__logo {
    display: block;
    width: auto;
    height: clamp(46px,5vw,64px);
    max-width: min(300px,55vw);
    object-fit: contain;
    object-position: left center;
    flex: 0 0 auto;
}

.content-stack {
    display: flex;
    flex-direction: column;
    gap: clamp(1.5rem,3vw,2.75rem);
}

@media (max-width:1050px) {
    .site-brand__logo {
        height: 56px;
        max-width: min(250px,45vw);
    }

}

@media (max-width:850px) {
    .site-brand__logo {
        height: 54px;
        max-width: min(230px,60vw);
    }

}

@media (max-width:420px) {
    .site-brand__logo {
        height: 48px;
        max-width: 58vw;
    }

}