/* ==========================================================================
   sumizai.com — shared stylesheet for the blog (all languages)
   Same design tokens as the landing page, kept in one file so 30+ articles
   do not each carry their own copy.
   ========================================================================== */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg: #060b16;
    --bg-soft: #0a1120;
    --panel: rgba(255, 255, 255, 0.028);
    --panel-strong: rgba(255, 255, 255, 0.05);
    --text: #e8eefb;
    --muted: rgba(232, 238, 251, 0.60);
    --faint: rgba(232, 238, 251, 0.40);
    --accent: #5aa9ff;
    --accent-2: #a78bfa;
    --accent-3: #22d3ee;
    --border: rgba(120, 170, 255, 0.14);
    --border-hi: rgba(120, 170, 255, 0.34);
    --radius: 18px;
    --maxw: 1160px;
    --readw: 760px;
    --mono: 'SFMono-Regular', ui-monospace, Menlo, Consolas, 'Liberation Mono', monospace;
}

html { scroll-behavior: smooth; font-size: 16px; -webkit-text-size-adjust: 100%; scroll-padding-top: 90px; }

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

body::before {
    content: '';
    position: fixed; inset: 0; pointer-events: none; z-index: 0;
    background:
        radial-gradient(60rem 40rem at 15% -10%, rgba(90, 169, 255, 0.13), transparent 60%),
        radial-gradient(50rem 35rem at 90% 5%, rgba(167, 139, 250, 0.11), transparent 60%);
}

.shell { position: relative; z-index: 1; }
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding-inline: 1.5rem; }
.read { width: 100%; max-width: var(--readw); margin: 0 auto; padding-inline: 1.5rem; }

a { color: inherit; }
::selection { background: rgba(90, 169, 255, 0.28); color: #fff; }

.sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
    position: absolute; top: -200%; left: 0; z-index: 999;
    background: var(--accent); color: #04101f;
    padding: 0.8rem 1.4rem; font-weight: 700; text-decoration: none; border-radius: 0 0 10px 0;
}
.skip-link:focus { top: 0; }

/* ---------------- HEADER ----------------
   Only the site header (direct child of .shell) is sticky. The rule must never
   reach the article's own <header class="read post-head">, which sits inside
   <main>: as a sticky box it pinned itself to the top of the viewport and
   covered the article while scrolling. */
.shell > header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(6, 11, 22, 0.86);
    backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
}
/* belt and braces: in-page headers stay in the flow whatever else matches */
main header, .post-head, .index-head {
    position: static; z-index: auto;
    background: none; backdrop-filter: none; -webkit-backdrop-filter: none;
    border-bottom: 0;
}
.shell > header nav {
    max-width: var(--maxw); margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    gap: 1.5rem; padding: 0.85rem 1.5rem;
}
/* the in-page nav elements (breadcrumb, article contents) are plain blocks */
.crumbs, .post-toc { display: block; }
.brand {
    font-size: 1.18rem; font-weight: 800; letter-spacing: -0.02em;
    text-decoration: none; white-space: nowrap; flex: none;
}
.brand .ai {
    background: linear-gradient(100deg, var(--accent), var(--accent-2) 60%, var(--accent-3));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.brand .dom { color: var(--faint); font-weight: 500; font-size: 0.82rem; letter-spacing: 0.04em; }
.nav-links { display: flex; flex-wrap: wrap; gap: 0.55rem 1.15rem; list-style: none; align-items: center; min-width: 0; }
.nav-links a { text-decoration: none; font-size: 0.9rem; font-weight: 500; color: var(--muted); transition: color 0.25s ease; }
.nav-links a:hover, .nav-links a:focus-visible { color: var(--text); }
.nav-cta {
    text-decoration: none; font-size: 0.88rem; font-weight: 700; white-space: nowrap; flex: none;
    padding: 0.55rem 1.15rem; border-radius: 999px;
    border: 1px solid var(--border-hi); color: var(--text);
    background: linear-gradient(180deg, rgba(90, 169, 255, 0.16), rgba(90, 169, 255, 0.05));
    transition: border-color 0.25s ease, background 0.25s ease;
}
.nav-cta:hover, .nav-cta:focus-visible { border-color: var(--accent); background: rgba(90, 169, 255, 0.22); }

/* ---------------- LANGUAGE SELECT ---------------- */
.lang-select { position: relative; margin-left: auto; flex: none; }
.lang-trigger {
    display: inline-flex; align-items: center; gap: 0.45rem;
    padding: 0.42rem 0.7rem 0.42rem 0.62rem;
    border: 1px solid var(--border); border-radius: 999px;
    background: var(--panel); color: var(--muted);
    font-family: var(--mono); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.09em;
    cursor: pointer; -webkit-appearance: none; appearance: none;
    transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}
.lang-trigger:hover, .lang-trigger:focus-visible { color: var(--text); border-color: var(--border-hi); background: var(--panel-strong); }
.lang-select:hover .lang-trigger,
.lang-select:focus-within .lang-trigger { color: var(--text); border-color: var(--accent); background: var(--panel-strong); }
.lang-globe { opacity: 0.85; flex: none; }
.lang-current { line-height: 1; }
.lang-chevron {
    width: 0; height: 0; flex: none; margin-left: 0.1rem;
    border-left: 4px solid transparent; border-right: 4px solid transparent;
    border-top: 5px solid currentColor; opacity: 0.7; transition: transform 0.2s ease;
}
.lang-select:hover .lang-chevron,
.lang-select:focus-within .lang-chevron { transform: rotate(180deg); }
.lang-menu {
    position: absolute; top: 100%; right: 0; z-index: 200;
    width: 268px; padding: 0.55rem; margin-top: 0.6rem;
    border: 1px solid var(--border-hi); border-radius: 16px;
    background: #0b1424; box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
    opacity: 0; visibility: hidden; pointer-events: none; transform: translateY(-6px);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
}
.lang-menu::before { content: ''; position: absolute; left: 0; right: 0; top: -0.7rem; height: 0.7rem; }
.lang-select:hover .lang-menu,
.lang-select:focus-within .lang-menu { opacity: 1; visibility: visible; pointer-events: auto; transform: none; }
.lang-menu-head {
    font-size: 0.68rem; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase;
    color: var(--faint); padding: 0.45rem 0.6rem 0.55rem;
}
.lang-list { max-height: 336px; overflow-y: auto; overscroll-behavior: contain; padding-right: 2px; }
.lang-list::-webkit-scrollbar { width: 6px; }
.lang-list::-webkit-scrollbar-thumb { background: var(--border-hi); border-radius: 99px; }
.lang-menu-sub {
    font-size: 0.62rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase;
    color: var(--faint); padding: 0.85rem 0.6rem 0.4rem; margin-top: 0.3rem; border-top: 1px solid var(--border);
}
.lang-item {
    display: flex; align-items: center; gap: 0.7rem;
    padding: 0.5rem 0.6rem; border-radius: 10px;
    font-size: 0.88rem; color: var(--muted); text-decoration: none;
    transition: color 0.18s ease, background 0.18s ease;
}
a.lang-item:hover, a.lang-item:focus-visible { color: var(--text); background: var(--panel-strong); }
.lang-item.is-active { color: var(--text); background: rgba(90, 169, 255, 0.13); }
.lang-item.is-soon { color: var(--faint); cursor: default; }
.lang-code {
    flex: none; min-width: 30px; font-family: var(--mono);
    font-size: 0.66rem; font-weight: 700; letter-spacing: 0.08em;
    color: var(--faint); padding: 0.16rem 0.3rem; border-radius: 5px;
    border: 1px solid var(--border); text-align: center;
}
.lang-item.is-active .lang-code { color: var(--accent); border-color: var(--border-hi); }
.lang-name { flex: 1 1 auto; min-width: 0; }
.lang-check { flex: none; color: var(--accent); font-weight: 700; }
.lang-badge {
    flex: none; font-size: 0.6rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
    color: var(--faint); padding: 0.15rem 0.45rem; border-radius: 999px;
    border: 1px solid var(--border); background: var(--panel);
}
.lang-menu-foot {
    font-size: 0.72rem; line-height: 1.5; color: var(--faint);
    padding: 0.7rem 0.6rem 0.35rem; margin-top: 0.35rem; border-top: 1px solid var(--border);
}

/* ---------------- BREADCRUMB ---------------- */
.crumbs { padding-block: 1.6rem 0; }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 0.5rem; font-size: 0.82rem; color: var(--faint); }
.crumbs li::after { content: '/'; margin-left: 0.5rem; opacity: 0.5; }
.crumbs li:last-child::after { content: ''; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--text); }

/* ---------------- ARTICLE ---------------- */
.post-head { padding-block: 2.4rem 2.2rem; }
.eyebrow {
    display: inline-flex; align-items: center; gap: 0.6rem;
    font-size: 0.72rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase;
    color: var(--accent); padding: 0.4rem 0.9rem; border-radius: 999px;
    border: 1px solid var(--border); background: var(--panel);
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-3); }
h1 {
    font-size: clamp(2rem, 4.6vw, 3rem); font-weight: 800;
    letter-spacing: -0.03em; line-height: 1.12; margin-top: 1.4rem;
}
.grad {
    background: linear-gradient(100deg, var(--accent), var(--accent-2) 60%, var(--accent-3));
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.post-lead { margin-top: 1.4rem; font-size: 1.14rem; line-height: 1.72; color: var(--muted); }
.post-lead strong { color: var(--text); font-weight: 700; }
.post-meta {
    display: flex; flex-wrap: wrap; gap: 0.55rem 1.2rem; align-items: center;
    margin-top: 1.7rem; padding-top: 1.3rem; border-top: 1px solid var(--border);
    font-size: 0.83rem; color: var(--faint);
}
.post-meta b { color: var(--muted); font-weight: 600; }

/* table of contents of the article */
.post-toc {
    margin: 2.4rem 0 0; padding: 1.4rem 1.5rem;
    border: 1px solid var(--border); border-radius: var(--radius); background: var(--panel);
}
.post-toc h2 {
    font-size: 0.72rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase;
    color: var(--faint); margin-bottom: 0.9rem;
}
.post-toc ol { list-style: none; counter-reset: toc; display: grid; gap: 0.5rem; }
.post-toc li { counter-increment: toc; position: relative; padding-left: 2rem; }
.post-toc li::before {
    content: counter(toc, decimal-leading-zero); position: absolute; left: 0; top: 0.15rem;
    font-family: var(--mono); font-size: 0.7rem; color: var(--accent); opacity: 0.75;
}
.post-toc a { color: var(--muted); text-decoration: none; font-size: 0.95rem; line-height: 1.5; }
.post-toc a:hover, .post-toc a:focus-visible { color: var(--text); }

.post-body { padding-block: 2.8rem 3.5rem; }
.qa { margin-bottom: 3rem; scroll-margin-top: 90px; }
.qa h2 {
    font-size: clamp(1.32rem, 2.5vw, 1.62rem); font-weight: 800;
    letter-spacing: -0.02em; line-height: 1.3; margin-bottom: 1.1rem;
}
.qa h2 .qmark { color: var(--accent); font-family: var(--mono); font-size: 0.72em; margin-right: 0.5rem; opacity: 0.8; }
.qa p { margin-bottom: 1.1rem; color: var(--muted); }
.qa p strong { color: var(--text); font-weight: 700; }
.qa p code, .qa li code {
    font-family: var(--mono); font-size: 0.86em; color: var(--accent-3);
    background: rgba(34, 211, 238, 0.08); padding: 0.1rem 0.36rem; border-radius: 5px;
    border: 1px solid rgba(34, 211, 238, 0.16);
}
.qa ul, .qa ol { margin: 0 0 1.2rem 0; padding-left: 1.3rem; color: var(--muted); }
.qa li { margin-bottom: 0.55rem; }
.qa a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.qa a:hover { color: var(--text); }

.callout {
    margin: 1.6rem 0 1.8rem; padding: 1.2rem 1.4rem;
    border: 1px solid var(--border); border-left: 3px solid var(--accent);
    border-radius: 0 14px 14px 0; background: var(--panel);
    font-size: 0.96rem; color: var(--muted);
}
.callout b { color: var(--text); }

pre.snippet {
    margin: 1.5rem 0 1.8rem; padding: 1.1rem 1.3rem; overflow-x: auto;
    border: 1px solid var(--border); border-radius: 14px; background: rgba(10, 17, 32, 0.8);
    font-family: var(--mono); font-size: 0.83rem; line-height: 1.8; color: var(--muted);
}
pre.snippet .k { color: var(--accent); }
pre.snippet .c { color: var(--faint); }
pre.snippet .g { color: var(--accent-3); }

/* ---------------- POST FOOTER / RELATED ---------------- */
.post-cta {
    margin-top: 1rem; padding: 2rem 1.9rem; border-radius: var(--radius);
    border: 1px solid var(--border-hi);
    background: linear-gradient(180deg, rgba(90, 169, 255, 0.09), rgba(255, 255, 255, 0.02));
}
.post-cta h2 { font-size: 1.32rem; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 0.7rem; }
.post-cta p { color: var(--muted); margin-bottom: 1.3rem; }
.btn {
    display: inline-flex; align-items: center; gap: 0.5rem;
    text-decoration: none; font-size: 0.92rem; font-weight: 700;
    padding: 0.72rem 1.5rem; border-radius: 999px;
    border: 1px solid var(--border-hi); color: var(--text);
    background: linear-gradient(180deg, rgba(90, 169, 255, 0.16), rgba(90, 169, 255, 0.05));
    transition: border-color 0.25s ease, background 0.25s ease;
}
.btn:hover, .btn:focus-visible { border-color: var(--accent); background: rgba(90, 169, 255, 0.22); }
.btn-ghost { background: var(--panel); border-color: var(--border); }
.cta-row { display: flex; flex-wrap: wrap; gap: 0.8rem; }

.related { padding-block: 0 4rem; }
.related h2 {
    font-size: 0.72rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase;
    color: var(--faint); margin-bottom: 1.2rem;
}
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.rel-card {
    display: block; padding: 1.25rem 1.35rem; border-radius: 14px; text-decoration: none;
    border: 1px solid var(--border); background: var(--panel);
    transition: border-color 0.25s ease, transform 0.25s ease;
}
.rel-card:hover { border-color: var(--border-hi); transform: translateY(-2px); }
.rel-card .t { font-weight: 700; font-size: 0.98rem; line-height: 1.4; }
.rel-card .d { margin-top: 0.5rem; font-size: 0.85rem; color: var(--faint); line-height: 1.55; }

/* ---------------- BLOG INDEX ---------------- */
.index-head { padding-block: 3.2rem 1rem; text-align: center; }
.index-head h1 { margin-inline: auto; max-width: 20ch; }
.index-head .post-lead { max-width: 62ch; margin-inline: auto; }
.post-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.2rem; padding-block: 2.4rem 4.5rem; }
.post-card {
    display: flex; flex-direction: column; padding: 1.7rem 1.7rem 1.5rem;
    border-radius: var(--radius); text-decoration: none;
    border: 1px solid var(--border); background: var(--panel);
    transition: border-color 0.25s ease, transform 0.25s ease, background 0.25s ease;
}
.post-card:hover { border-color: var(--border-hi); transform: translateY(-3px); background: var(--panel-strong); }
.post-card .kicker {
    font-size: 0.66rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase;
    color: var(--accent); margin-bottom: 0.85rem;
}
.post-card h2 { font-size: 1.18rem; font-weight: 800; letter-spacing: -0.02em; line-height: 1.35; }
.post-card p { margin-top: 0.75rem; font-size: 0.93rem; color: var(--muted); line-height: 1.6; }
.post-card .more { margin-top: 1.2rem; font-size: 0.83rem; font-weight: 700; color: var(--accent); }
.post-card .qcount {
    margin-top: 1.1rem; font-family: var(--mono); font-size: 0.7rem;
    letter-spacing: 0.08em; color: var(--faint);
}

/* ---------------- LEGAL DOCUMENTS ---------------- */
.legal-head .post-lead p + p { margin-top: 0.9rem; }
.legal-meta { display: flex; flex-wrap: wrap; gap: 0.4rem 1.4rem; }
.legal-body { padding-block: 2.4rem 3rem; }
.legal-section { margin-bottom: 2.6rem; scroll-margin-top: 90px; }
.legal-section h2 {
    display: flex; gap: 0.8rem; align-items: baseline;
    font-size: clamp(1.18rem, 2.2vw, 1.42rem); font-weight: 800;
    letter-spacing: -0.02em; line-height: 1.3; margin-bottom: 1rem;
}
.legal-num { font-family: var(--mono); font-size: 0.72rem; color: var(--accent); opacity: 0.8; flex: none; }
.legal-section h3 {
    font-size: 1rem; font-weight: 700; margin: 1.6rem 0 0.7rem; color: var(--text);
}
.legal-section p { margin-bottom: 1rem; color: var(--muted); }
.legal-section p strong, .legal-section li strong { color: var(--text); font-weight: 700; }
.legal-section ul, .legal-section ol { margin: 0 0 1.1rem 0; padding-left: 1.3rem; color: var(--muted); }
.legal-section li { margin-bottom: 0.5rem; }
.legal-section a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.legal-section a:hover { color: var(--text); }
.legal-section code {
    font-family: var(--mono); font-size: 0.86em; color: var(--accent-3);
    background: rgba(34, 211, 238, 0.08); padding: 0.1rem 0.36rem; border-radius: 5px;
    border: 1px solid rgba(34, 211, 238, 0.16);
}
/* API endpoints and e-mail addresses are long and unbreakable; without this a
   single one of them makes the whole document scroll sideways on a phone. */
.legal-section code, .legal-section a, .legal-section td { overflow-wrap: anywhere; }
.legal-section dl { margin: 0 0 1.1rem; color: var(--muted); }
.legal-section dt { font-weight: 700; color: var(--text); margin-top: 0.9rem; }
.legal-section dd { margin: 0.25rem 0 0; padding-left: 1rem; border-left: 1px solid var(--border); }

/* tables (subprocessors, cookie inventories, AI Act obligations) */
.legal-section table {
    width: 100%; margin: 1.2rem 0 1.6rem; border-collapse: collapse;
    font-size: 0.88rem; color: var(--muted);
}
.legal-section thead th {
    text-align: left; font-size: 0.68rem; font-weight: 700; letter-spacing: 0.14em;
    text-transform: uppercase; color: var(--faint); padding: 0 0.8rem 0.6rem;
    border-bottom: 1px solid var(--border-hi);
}
.legal-section tbody td { padding: 0.8rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.legal-section tbody tr:last-child td { border-bottom: 0; }
.legal-section tbody td:first-child { color: var(--text); font-weight: 600; }
/* a table must scroll inside its own box, never widen the page */
.legal-section .table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.legal-section .table-scroll table { min-width: 34rem; margin-block: 0; }

.legal-operator { margin-top: 2.6rem; }
.legal-operator dl {
    display: grid; grid-template-columns: max-content 1fr; gap: 0.5rem 1.4rem;
    font-size: 0.92rem; color: var(--muted);
}
.legal-operator dt { color: var(--faint); font-size: 0.72rem; font-weight: 700;
    letter-spacing: 0.14em; text-transform: uppercase; padding-top: 0.2rem; }
.legal-operator dd { margin: 0; color: var(--text); }
.legal-operator a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 560px) { .legal-operator dl { grid-template-columns: 1fr; gap: 0.15rem; }
    .legal-operator dt { padding-top: 0.7rem; } }

/* .post-toc sets its own margin, which would beat .read's auto centring */
.post-toc.read { margin-inline: auto; }
article.legal + .related { padding-top: 2.6rem; }
.legal-grid { grid-template-columns: repeat(5, 1fr); }
.legal-grid .rel-card { display: flex; align-items: center; min-height: 100%; }
.legal-index-grid { grid-template-columns: repeat(3, 1fr); }

/* ---------------- FOOTER ---------------- */
footer { border-top: 1px solid var(--border); padding-block: 3rem 2.5rem; background: var(--bg-soft); }
.foot-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 2rem; }
footer h3 {
    font-size: 0.72rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase;
    color: var(--faint); margin-bottom: 0.9rem;
}
footer ul { list-style: none; display: grid; gap: 0.5rem; }
footer a { color: var(--muted); text-decoration: none; font-size: 0.9rem; }
footer a:hover { color: var(--text); }
footer p { color: var(--faint); font-size: 0.88rem; line-height: 1.65; }
.foot-bottom {
    margin-top: 2.4rem; padding-top: 1.4rem; border-top: 1px solid var(--border);
    display: flex; flex-wrap: wrap; gap: 0.8rem; justify-content: space-between;
    font-size: 0.82rem; color: var(--faint);
}

/* ---------------- RESPONSIVE ---------------- */
@media (max-width: 1120px) {
    nav { gap: 1rem; }
    .nav-links { gap: 0.5rem 0.9rem; font-size: 0.86rem; }
}
@media (max-width: 1120px) {
    .legal-grid { grid-template-columns: repeat(3, 1fr); }
    .legal-index-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 980px) {
    .nav-links { display: none; }
    .related-grid { grid-template-columns: 1fr; }
    .post-grid { grid-template-columns: 1fr; }
    .foot-grid { grid-template-columns: 1fr 1fr; }
    .legal-grid { grid-template-columns: repeat(2, 1fr); }
    .legal-index-grid { grid-template-columns: 1fr; }
}
/* Below ~720px the brand + language picker + CTA no longer fit on one line and
   the header pushed the whole document sideways. Shrink the row instead. */
@media (max-width: 720px) {
    .shell > header nav { gap: 0.6rem; padding: 0.7rem 1rem; }
    .brand { font-size: 1.05rem; }
    .brand .dom { display: none; }
    .lang-trigger { padding: 0.38rem 0.55rem 0.38rem 0.5rem; gap: 0.35rem; }
    .nav-cta { font-size: 0.8rem; padding: 0.5rem 0.9rem; }
}
@media (max-width: 460px) {
    .shell > header nav { gap: 0.45rem; padding: 0.65rem 0.85rem; }
    .brand { font-size: 0.98rem; }
    .lang-current { display: none; }
    .nav-cta { font-size: 0.74rem; padding: 0.46rem 0.78rem; }
    .wrap, .read { padding-inline: 1.1rem; }
}
@media (max-width: 560px) {
    .foot-grid { grid-template-columns: 1fr; }
    .btn { width: 100%; justify-content: center; }
    .lang-menu { width: min(268px, calc(100vw - 2.2rem)); }
    .post-toc { padding: 1.2rem 1.1rem; }
    .post-cta { padding: 1.6rem 1.2rem; }
}
@media print {
    body { background: #fff; color: #000; }
    body::before { display: none; }
    header, footer, .post-toc, .post-cta, .related { display: none; }
    .qa a::after { content: ' (' attr(href) ')'; font-size: 0.75em; color: #555; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important; transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}