/*
Theme Name: ISO OS Public
Theme URI: https://example.test/
Description: Theme public song ngữ, lấy nhận diện từ biến môi trường.
Author: ISO OS
Version: 2.3.0
Template: twentytwentyfive
Text Domain: iso-os-public
License: GPL-2.0-or-later
*/

@font-face { font-family: "Be Vietnam Pro"; src: url("assets/media/be-vietnam-pro-600.woff2") format("woff2"); font-style: normal; font-weight: 600; font-display: swap; }
@font-face { font-family: "Be Vietnam Pro"; src: url("assets/media/be-vietnam-pro-700.woff2") format("woff2"); font-style: normal; font-weight: 700; font-display: swap; }
@font-face { font-family: Inter; src: url("assets/media/inter-400.woff2") format("woff2"); font-style: normal; font-weight: 400; font-display: swap; }
@font-face { font-family: Inter; src: url("assets/media/inter-500.woff2") format("woff2"); font-style: normal; font-weight: 500; font-display: swap; }
@font-face { font-family: "Source Serif 4"; src: url("assets/source-serif-4-roman.woff2") format("woff2"); font-style: normal; font-weight: 200 900; font-display: swap; }

:root {
  color-scheme: light;
  --bg: #faf9f5;
  --surface: #ffffff;
  --sidebar: #f5f4ed;
  --ink: #141413;
  --ink-2: #3d3d3a;
  --muted: #73726c;
  --line: #e8e6dc;
  --accent: #d97757;
  --accent-strong: #c6613f;
  --accent-soft: #f5e6df;
  --accent-ink: #9b4228;
  --button-ink: #141413;
  --ok: #5a7d5a;
  --warn: #b7791f;
  --danger: #b5483b;
  --info: #4a6a8a;
  --container: 1100px;
  --radius: 12px;
  --control-radius: 8px;
  --shadow-hover: 0 4px 12px rgb(20 20 19 / 5%);
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #262624;
    --surface: #30302e;
    --sidebar: #1f1e1d;
    --ink: #faf9f5;
    --ink-2: #e3e1d9;
    --muted: #a6a39a;
    --line: #3e3e3a;
    --accent-soft: #3a2a24;
    --accent-ink: #f1a88c;
    --button-ink: #141413;
    --shadow-hover: 0 4px 12px rgb(0 0 0 / 12%);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--bg); font-family: Inter, ui-sans-serif, system-ui, sans-serif; font-size: 16px; font-weight: 400; line-height: 1.6; font-variant-numeric: tabular-nums; }
body.admin-bar .site-header { top: 32px; }
a { color: var(--accent-ink); text-underline-offset: .2em; }
img, video, svg { display: block; max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; }
:where(a, button, input, select, textarea, summary):focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
h1, h2, h3 { max-width: 28ch; margin-block: 0 .65em; color: var(--ink); font-family: "Source Serif 4", Georgia, serif; font-weight: 650; line-height: 1.16; letter-spacing: -.025em; text-wrap: balance; }
h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); }
h3 { font-size: 1.25rem; font-weight: 600; }
p, li { max-width: 72ch; }
.site-shell { width: min(var(--container), calc(100% - 48px)); margin-inline: auto; }
.skip-link { position: fixed; top: -100px; left: 1rem; z-index: 100; padding: .75rem 1rem; color: var(--button-ink); background: var(--accent); }
.skip-link:focus { top: 1rem; }
.icon { display: inline-block; width: 24px; height: 24px; flex: 0 0 24px; fill: none; stroke: currentcolor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.5; }
.icon-tile { display: grid; width: 44px; height: 44px; place-items: center; color: var(--accent-ink); background: var(--accent-soft); border: 1px solid var(--line); border-radius: var(--control-radius); }

.site-header { position: sticky; z-index: 40; top: 0; color: var(--ink); background: var(--surface); border-bottom: 1px solid var(--line); }
.site-header .site-shell { width: min(1280px, calc(100% - 48px)); }
.site-header__inner { min-height: 76px; display: flex; align-items: center; gap: 1rem; }
.brand-link { display: inline-flex; align-items: center; gap: .7rem; margin-right: auto; color: var(--ink); font-weight: 700; text-decoration: none; }
.brand-mark { width: 42px; aspect-ratio: 1; color: var(--accent); }
.primary-nav { display: flex; align-items: center; gap: .25rem; }
.primary-nav__list, .language-switch { display: flex; align-items: center; gap: .1rem; padding: 0; margin: 0; list-style: none; }
.primary-nav a, .language-switch a { min-height: 44px; display: inline-flex; align-items: center; padding: .55rem .65rem; color: var(--ink-2); font-weight: 500; text-decoration: none; white-space: nowrap; }
.primary-nav a:hover, .language-switch a:hover, .primary-nav a[aria-current="page"] { color: var(--accent-ink); }
.language-switch { padding-left: .5rem; border-left: 1px solid var(--line); }
.language-switch a[aria-current="true"] { color: var(--ink); background: var(--sidebar); border-radius: var(--control-radius); }
.header-actions { display: flex; align-items: center; gap: .5rem; }
.mobile-nav { display: none; }
.site-main { min-height: 70vh; overflow: clip; }

.button { min-height: 46px; display: inline-flex; align-items: center; justify-content: center; gap: .5rem; padding: .68rem 1rem; color: var(--button-ink); background: var(--accent); border: 1px solid transparent; border-radius: var(--control-radius); font-weight: 600; text-decoration: none; cursor: pointer; transition: background .18s ease, transform .18s ease, box-shadow .18s ease; }
.button:hover { color: var(--button-ink); background: var(--accent-strong); box-shadow: var(--shadow-hover); transform: translateY(-1px); }
.button--secondary { color: var(--accent-ink); background: var(--surface); border-color: var(--line); }
.button--secondary:hover { color: var(--accent-ink); background: var(--accent-soft); }
.button-row { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.5rem; }
.text-link { display: inline-flex; align-items: center; gap: .25rem; margin-top: auto; font-weight: 500; text-decoration: none; }
.text-link .icon { width: 18px; height: 18px; }
.eyebrow { margin: 0 0 .75rem; color: var(--accent-ink); font-size: .8rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.lead { color: var(--muted); font-size: 1.125rem; }
.meta { color: var(--muted); font-size: .875rem; }

.entry { width: 100%; margin: 0; }
.entry-content > :not(.alignfull):not(.section):not(.hero):not(.contact-band) { width: min(860px, calc(100% - 48px)); margin-inline: auto; }
.section { padding-block: clamp(4rem, 8vw, 6rem); }
.section--tint { background: var(--sidebar); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 2rem; margin-bottom: 2rem; }
.section-heading > p { color: var(--muted); }
.hero { position: relative; min-height: 560px; display: grid; align-items: center; overflow: hidden; color: var(--ink); background: var(--bg); }
.hero__media, .hero__media::after { position: absolute; inset: 0; }
.hero__media { left: 52%; overflow: hidden; border-radius: var(--radius) 0 0 var(--radius); }
.hero__media::after { content: ""; background: linear-gradient(90deg, var(--bg), transparent 18%); }
.hero__media img, .hero__media video { width: 100%; height: 100%; object-fit: cover; }
.hero__content { position: relative; z-index: 1; width: min(var(--container), calc(100% - 48px)); margin-inline: auto; padding-block: 5rem; }
.hero__content > * { max-width: min(52%, 590px); }
.hero h1 { max-width: 18ch; color: var(--ink); }
.hero .lead { color: var(--muted); }
.hero .eyebrow { color: var(--accent-ink); }
.hero--compact { min-height: 440px; }

.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; }
.card-grid--four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.content-card { min-width: 0; display: flex; flex-direction: column; overflow: hidden; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); transition: box-shadow .18s ease, transform .18s ease; }
.content-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.content-card__body { min-height: 260px; display: flex; flex-direction: column; align-items: flex-start; padding: 1.5rem; }
.content-card__body h3 { margin-top: 1.1rem; }
.content-card__body p { color: var(--muted); }
.card__media { aspect-ratio: 16 / 9; margin: 0; overflow: hidden; background: var(--sidebar); }
.card__media img { width: 100%; height: 100%; object-fit: cover; }
.media-frame { margin: 0; overflow: hidden; background: var(--sidebar); border-radius: var(--radius); }
.media-frame img { width: 100%; height: 100%; object-fit: cover; }
.feature-list { display: grid; gap: .8rem; padding: 0; list-style: none; }
.feature-list li { display: flex; align-items: flex-start; gap: .7rem; }
.feature-list .icon { width: 20px; height: 20px; margin-top: .2rem; color: var(--accent-ink); }
.split { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: clamp(2rem, 6vw, 5rem); }
.split__media { aspect-ratio: 4 / 3; }
.metric-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; overflow: hidden; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); }
.metric { padding: 1.5rem; background: var(--surface); }
.metric strong { display: block; color: var(--ink); font-family: "Source Serif 4", Georgia, serif; font-size: 1.5rem; }
.metric span { color: var(--muted); }
.chip-row { display: flex; flex-wrap: wrap; gap: .65rem; }
.chip { display: inline-flex; align-items: center; gap: .45rem; min-height: 42px; padding: .45rem .75rem; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 999px; font-weight: 500; }
.chip .icon { width: 18px; height: 18px; color: var(--accent-ink); }

.stepper { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0; padding: 0; margin: 2rem 0 0; list-style: none; counter-reset: steps; }
.stepper li { position: relative; padding: 0 1.2rem 0 0; }
.stepper li:not(:last-child)::after { content: ""; position: absolute; z-index: 0; top: 20px; right: 0; left: 42px; height: 1px; background: var(--line); }
.stepper__number { position: relative; z-index: 1; width: 40px; height: 40px; display: grid; place-items: center; color: var(--button-ink); background: var(--accent); border-radius: 50%; font-weight: 600; }
.stepper h3 { margin-top: 1rem; font-size: 1rem; }
.stepper p { color: var(--muted); font-size: .9rem; }

.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { min-height: 64px; display: flex; align-items: center; justify-content: space-between; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; color: var(--accent-ink); font-size: 1.5rem; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list h3 { margin: 0; }
.faq-list details > p { padding: 0 0 1.25rem; color: var(--muted); }
.contact-band { padding-block: 4rem; color: var(--ink); background: var(--sidebar); border-block: 1px solid var(--line); }
.contact-band .site-shell { display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.contact-band h2 { color: var(--ink); }
.contact-band p { color: var(--muted); }
.notice { padding: 1rem 1.2rem; background: var(--accent-soft); border-left: 4px solid var(--accent); }
.legal-draft { padding: 1rem 1.2rem; color: var(--ink); background: var(--accent-soft); border: 1px solid var(--line); border-radius: var(--radius); font-weight: 500; }

.contact-layout { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(280px, .6fr); gap: 3rem; }
.contact-form { display: grid; gap: 1rem; }
.contact-form label { display: grid; gap: .35rem; color: var(--ink); font-weight: 500; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; min-height: 48px; padding: .7rem .8rem; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: var(--control-radius); }
.contact-form textarea { min-height: 150px; resize: vertical; }
.contact-form .check-row { grid-template-columns: 24px 1fr; align-items: start; color: var(--muted); font-weight: 400; }
.contact-form .check-row input { min-height: 24px; }
.contact-form .website-field { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form-status { padding: .85rem 1rem; background: var(--sidebar); border-radius: var(--control-radius); }
.contact-card { padding: 1.5rem; background: var(--sidebar); border: 1px solid var(--line); border-radius: var(--radius); }
.contact-card a { overflow-wrap: anywhere; }
.floating-contact { position: fixed; z-index: 35; right: 1rem; bottom: 5rem; display: grid; gap: .5rem; }
.floating-contact a { width: 48px; height: 48px; display: grid; place-items: center; color: var(--button-ink); background: var(--accent); border-radius: 50%; box-shadow: var(--shadow-hover); }

.post-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; }
.post-card { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); }
.post-card__body { padding: 1.25rem; }
.post-card h2 { font-size: 1.25rem; }
.post-card { background: var(--surface); }
.post-card__body { min-height: 235px; display: flex; flex-direction: column; }
.post-card__excerpt { display: -webkit-box; overflow: hidden; -webkit-box-orient: vertical; -webkit-line-clamp: 3; line-clamp: 3; color: var(--ink-2); }
.post-card .text-link { padding-top: .75rem; }
.article-list .section-heading { align-items: start; }
.article-search { display: grid; gap: .4rem; max-width: 480px; margin-bottom: 2rem; }
.article-search label { font-weight: 600; }
.article-search > div { display: flex; gap: .5rem; }
.article-search input { min-width: 0; flex: 1; padding: .65rem .8rem; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: var(--control-radius); }
.article-guide { margin: 2rem 0 4rem; }
.article-guide > .lead { max-width: 76ch; }
.article-guide__section { padding-block: 2.75rem; border-bottom: 1px solid var(--line); scroll-margin-top: 96px; }
.article-guide__section h3 { font-size: clamp(1.5rem, 2.4vw, 2rem); }
.article-guide__section .card-grid { margin-top: 1.5rem; }
#bai-viet { scroll-margin-top: 96px; }
.standards-intro { padding-block: 3rem; }
.standards-intro h2 { max-width: 19ch; }
.standards-intro .lead { max-width: 78ch; color: var(--ink-2); }
.standards-toc { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 2rem; }
.standards-toc a { padding: .45rem .8rem; color: var(--ink-2); background: var(--surface); border: 1px solid var(--line); border-radius: 999px; text-decoration: none; }
.standards-toc a:hover { color: var(--accent-ink); border-color: var(--accent); }
.standards-table-wrap { overflow-x: auto; margin-top: 2rem; border: 1px solid var(--line); border-radius: var(--radius); }
.standards-table { width: 100%; border-collapse: collapse; background: var(--surface); }
.standards-table th, .standards-table td { padding: .85rem 1rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.standards-table thead { color: var(--muted); background: var(--bg); }
.standards-table tbody tr:last-child th, .standards-table tbody tr:last-child td { border: 0; }
.standards-list { display: grid; gap: .75rem; margin-top: 2rem; }
.standard-detail { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); scroll-margin-top: 95px; }
.standard-detail summary { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1.25rem 1.5rem; cursor: pointer; list-style: none; }
.standard-detail summary::-webkit-details-marker { display: none; }
.standard-detail summary strong { display: block; font-family: "Source Serif 4", Georgia, serif; font-size: 1.3rem; }
.standard-detail summary small { display: block; color: var(--muted); font-size: .875rem; }
.standard-detail summary > span:last-child { color: var(--accent-ink); font-size: 1.6rem; }
.standard-detail[open] summary > span:last-child { transform: rotate(45deg); }
.standard-detail__body { display: grid; gap: .6rem; padding: 0 1.5rem 1.5rem; border-top: 1px solid var(--line); }
.standard-detail__body h3, .standard-detail__body p { margin: .6rem 0 0; }
.standard-detail__body ol { columns: 2; column-gap: 2.5rem; padding-left: 1.4rem; margin: 0; }
.standard-detail__body li { break-inside: avoid; padding: 0 0 .55rem .2rem; }
.standard-version { color: var(--accent-ink); font-weight: 600; }
.standard-detail__links { display: flex; flex-wrap: wrap; gap: 1.5rem; margin-top: .8rem; }
.standards-roadmap { display: grid; gap: .75rem; padding: 0; margin: 2rem 0 0; list-style: none; counter-reset: roadmap; }
.standards-roadmap li { display: grid; grid-template-columns: minmax(165px, 1fr) 1.4fr 1.4fr; gap: 1.2rem; max-width: none; padding: 1.25rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); counter-increment: roadmap; }
.standards-roadmap h3::before { content: counter(roadmap, decimal-leading-zero) " "; color: var(--accent-ink); }
.standards-roadmap h3 { margin-bottom: .3rem; }
.standards-roadmap p { margin: 0; }
.transition-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin: 2rem 0; }
.transition-grid article { padding: 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.transition-grid article p { max-width: none; }
.standards-cta .button-row { margin-bottom: 2rem; }
.service-intro { padding-block: 3rem; }
.service-intro .lead { max-width: 80ch; color: var(--ink-2); }
.service-scenarios { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin-top: 2rem; }
.service-scenarios article { padding: 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.service-scenarios article p:last-child { max-width: none; margin-bottom: 0; }
.service-phases { display: grid; gap: 1rem; margin-top: 2rem; }
.service-phases article { display: grid; grid-template-columns: 48px 1fr; gap: 1rem; padding: 1.5rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.service-phases article p { max-width: 90ch; }
.service-deliverables { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .8rem; padding: 0; margin: 2rem 0 0; list-style: none; }
.service-deliverables li { max-width: none; padding: 1rem 1.25rem; border-left: 3px solid var(--accent); border-radius: 0 var(--control-radius) var(--control-radius) 0; background: var(--surface); }
.service-flow { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .8rem; padding: 0; margin: 2rem 0; list-style: none; counter-reset: flow; }
.service-flow li { display: grid; gap: .4rem; max-width: none; padding: 1rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); counter-increment: flow; }
.service-flow strong::before { content: counter(flow, decimal-leading-zero) " "; color: var(--accent-ink); }
.service-flow span { color: var(--ink-2); }
.method-chain { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.service-platform { align-items: start; margin-top: 2rem; }
.service-screenshot { overflow: hidden; margin: 0; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.service-screenshot img { width: 100%; height: auto; }
.service-screenshot figcaption { padding: .7rem 1rem; color: var(--muted); font-size: .875rem; }
.services-cta { background: var(--accent-soft); }
[id="van-de"], [id="giai-doan"], [id="ban-giao"], [id="vai-tro"], [id="nen-tang"], [id="hoan-thanh"], [id="buoc-tiep-theo"], [id="chon-dich-vu"], [id="tinh-huong"], [id="cach-phoi-hop"], [id="dau-ra"] { scroll-margin-top: 76px; }
[id="chon-nhanh"], [id="tung-tieu-chuan"], [id="lo-trinh"], [id="tich-hop"], [id="chuyen-doi"], [id="cau-hoi"], [id="bat-dau"] { scroll-margin-top: 76px; }
.entry--article { width: min(820px, calc(100% - 48px)); margin: 4rem auto 6rem; }
.entry--article .entry-header { margin-bottom: 2rem; }
.entry--article .wp-block-image { margin-block: 2rem; }
.site-footer { padding-block: 4rem 2rem; color: var(--ink-2); background: var(--sidebar); border-top: 1px solid var(--line); }
.site-footer h2, .site-footer h3, .site-footer strong { color: var(--ink); }
.site-footer a { color: var(--ink-2); text-decoration: none; }
.site-footer a:hover { color: var(--accent-ink); text-decoration: underline; }
.site-footer__grid { display: grid; grid-template-columns: 2fr repeat(4, 1fr); gap: 2.5rem; }
.site-footer nav { display: grid; align-content: start; gap: .6rem; }
.site-footer__bottom { display: flex; justify-content: space-between; gap: 1rem; padding-top: 2rem; margin-top: 2rem; border-top: 1px solid var(--line); }
.site-footer .brand-mark { color: var(--accent); }
.empty-page { min-height: 65vh; display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 3rem; }
.empty-page img { max-height: 360px; margin-inline: auto; }

.public-assistant { position: fixed; right: 1rem; bottom: 1rem; z-index: 50; width: 52px; height: 52px; }
.public-assistant details { width: 100%; height: 100%; }
.public-assistant summary { width: 52px; height: 52px; display: grid; place-items: center; color: var(--button-ink); background: var(--accent); border: 1px solid var(--accent-strong); border-radius: 50%; box-shadow: var(--shadow-hover); cursor: pointer; list-style: none; font-size: 1.35rem; font-weight: 700; }
.public-assistant summary::-webkit-details-marker { display: none; }
.public-assistant summary::marker { content: ""; }
.public-assistant__panel { position: absolute; right: 0; bottom: calc(100% + .75rem); width: min(24rem, calc(100vw - 2rem)); max-height: min(70vh, 620px); overflow: auto; padding: 1.25rem; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 12px 30px rgb(20 20 19 / 16%); }
.public-assistant__panel p { color: var(--muted); }
.public-assistant__panel h2 { margin-bottom: .5rem; font-size: 1.45rem; }
.public-assistant__panel form { display: grid; gap: .75rem; }
.public-assistant__panel label { display: grid; gap: .35rem; }
.public-assistant__panel .website-field { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.public-assistant__panel textarea { box-sizing: border-box; width: 100%; min-height: 6rem; padding: .7rem; color: var(--ink); background: var(--bg); border: 1px solid var(--line); border-radius: var(--control-radius); }
.public-assistant__panel .button { width: 100%; }
.public-assistant__panel .button.secondary { color: var(--accent-ink); background: var(--surface); border-color: var(--line); }

/* Reserve a right rail for the fixed trigger while the content spans the viewport. */
@media (min-width: 761px) and (max-width: 1236px) {
  .hero__media { right: 80px; }
  .site-main .site-shell,
  .site-main .hero__content,
  .site-main .entry--article,
  .site-main .entry-content > :not(.alignfull):not(.section):not(.hero):not(.contact-band),
  .site-footer .site-shell { width: min(var(--container), calc(100% - 112px)); margin-left: 24px; margin-right: auto; }
}

@media (max-width: 1040px) {
  .primary-nav, .header-actions > .button { display: none; }
  .mobile-nav { display: block; }
  .mobile-nav summary { width: 44px; height: 44px; display: grid; place-items: center; color: var(--ink); cursor: pointer; list-style: none; }
  .mobile-nav summary::-webkit-details-marker { display: none; }
  .mobile-nav__panel { position: absolute; top: calc(100% + 1px); right: 0; left: 0; display: grid; padding: 1rem 24px 1.5rem; background: var(--surface); border-bottom: 1px solid var(--line); box-shadow: var(--shadow-hover); }
  .mobile-nav__panel a { min-height: 44px; display: flex; align-items: center; color: var(--ink); text-decoration: none; }
  .card-grid--four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .site-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stepper { grid-template-columns: 1fr; gap: 1rem; }
  .stepper li { display: grid; grid-template-columns: 40px 1fr; gap: 1rem; padding: 0; }
  .stepper li::after { display: none; }
  .stepper h3 { margin-top: 0; }
}

@media (max-width: 760px) {
  .service-scenarios, .service-deliverables, .service-flow { grid-template-columns: 1fr; }
  .service-phases article { grid-template-columns: 36px 1fr; padding: 1rem; }
  .standards-table th, .standards-table td { min-width: 130px; padding: .7rem; }
  .standard-detail summary { padding: 1rem; }
  .standard-detail__body { padding: 0 1rem 1rem; }
  .standard-detail__body ol { columns: 1; }
  .standards-roadmap li, .transition-grid { grid-template-columns: 1fr; }
  body.admin-bar .site-header { top: 46px; }
  .site-shell, .hero__content { width: min(100% - 24px, var(--container)); }
  .site-header .site-shell { width: calc(100% - 24px); }
  .site-header__inner { min-height: 68px; }
  .brand-mark { width: 36px; }
  .language-switch { padding-left: 0; border-left: 0; }
  .hero, .hero--compact { min-height: 0; display: flex; flex-direction: column; }
  .hero__content { order: 1; padding-block: 3.5rem 2rem; }
  .hero__content > * { max-width: 100%; }
  .hero__media { position: relative; inset: auto; order: 2; width: calc(100% - 88px); height: 230px; margin: 0 0 2rem 12px; border-radius: var(--radius); }
  .hero__media::after { display: none; }
  .section { padding-block: 3rem; }
  .section-heading, .contact-band .site-shell, .site-footer__bottom { align-items: flex-start; flex-direction: column; }
  .card-grid, .card-grid--four, .post-grid, .metric-grid, .split, .contact-layout, .site-footer__grid, .empty-page { grid-template-columns: 1fr; }
  .content-card__body { min-height: 220px; }
  .entry--article { width: calc(100% - 24px); margin-block: 3rem; }
  .public-assistant { right: .75rem; bottom: .75rem; }
  .public-assistant__panel { width: calc(100vw - 1.5rem); max-height: min(72vh, 620px); }
  .site-main .site-shell,
  .site-main .hero__content,
  .site-main .entry--article,
  .site-main .entry-content > :not(.alignfull):not(.section):not(.hero):not(.contact-band),
  .site-footer .site-shell { width: calc(100% - 88px); margin-left: 12px; margin-right: auto; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
  .hero video { display: none; }
}