/* Solfy – arkusz stylów na wzór Matematycznie: biała kartka, jedna kolumna tekstu w artykułach,
   siatka kart aplikacji. Fiolet + bursztyn, Onest + Unbounded. */
:root {
  --bg: #ffffff;
  --soft: #f2f4fa;
  --fg: #171d33;
  --muted: #586079;
  --line: #e1e5f0;
  --accent: #5a3ea6;
  --accent-ink: #ffffff;
  --amber: #e39b1c;
  --mark: #ffd27a;
  --mark-ink: #2b1d00;
  --good: #1d7a52;
  --warn: #a8501a;
  --font-body: "Onest", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-display: "Unbounded", "Trebuchet MS", system-ui, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --measure: 40rem;
  --wide: 66rem;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #11141d; --soft: #1a1f2e; --fg: #e9ecf6; --muted: #9ea7c0; --line: #2a3145;
    --accent: #b9a6ff; --accent-ink: #11141d; --amber: #f3b64c; --mark: #d9a443; --mark-ink: #1a1200;
    --good: #5ccf98; --warn: #f0a26a;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #11141d; --soft: #1a1f2e; --fg: #e9ecf6; --muted: #9ea7c0; --line: #2a3145;
  --accent: #b9a6ff; --accent-ink: #11141d; --amber: #f3b64c; --mark: #d9a443; --mark-ink: #1a1200;
  --good: #5ccf98; --warn: #f0a26a;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font-body); font-size: 1.0625rem; line-height: 1.65; color: var(--fg); background: var(--bg); }
img { max-width: 100%; height: auto; }
a { color: var(--accent); text-underline-offset: 2px; }
:focus-visible { outline: 3px solid var(--mark); outline-offset: 2px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--mark); color: var(--mark-ink); padding: .5rem 1rem; z-index: 100; }
.skip:focus { left: 8px; }
.muted { color: var(--muted); }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.wrap {
  max-width: var(--measure);
  margin-inline: auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}

main.wrap.wide, .wrap.wide { max-width: var(--wide); }
main.wrap.wide > .crumbs, main.wrap.wide > .page-head { max-width: 48rem; }

/* nagłówek */
.site-header { border-bottom: 1px solid var(--line); background: var(--bg); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: .5rem 1rem; padding-block: .8rem; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: .55rem; text-decoration: none; color: var(--fg); }
.brand-mark { width: 32px; height: 32px; }
.brand-mark rect { fill: var(--accent); }
.brand-mark circle { fill: var(--amber); }
.brand-mark .mk { fill: var(--accent-ink); }
.brand-name { font-family: var(--font-display); font-weight: 600; font-size: 1.1rem; letter-spacing: -.01em; }
.nav { display: flex; gap: .2rem 1rem; flex-wrap: wrap; }
.nav a { color: var(--fg); text-decoration: none; font-weight: 500; }
.nav a:hover { color: var(--accent); text-decoration: underline; }
.langs { display: flex; gap: .15rem; font-size: .8rem; font-weight: 600; letter-spacing: .03em; }
.langs a { color: var(--muted); text-decoration: none; padding: .15rem .35rem; border-radius: .35rem; }
.langs a:hover { color: var(--accent); }
.langs a[aria-current] { color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); }

/* typografia */
h1, h2, h3 { font-family: var(--font-display); line-height: 1.2; text-wrap: balance; margin: 0; letter-spacing: -.015em; }
h1 { font-size: clamp(1.6rem, 1.25rem + 1.6vw, 2.3rem); font-weight: 600; }
h2 { font-size: 1.3rem; font-weight: 600; }
h3 { font-size: 1.08rem; font-weight: 600; }
.eyebrow { font-family: var(--font-mono); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 0 0 .4rem; }
.lead { font-size: 1.125rem; color: var(--muted); margin: .6rem 0 0; }
mark { background: var(--mark); color: var(--mark-ink); padding: 0 .15em; }

.btn { display: inline-block; background: var(--accent); color: var(--accent-ink); font-weight: 600; text-decoration: none; padding: .7rem 1.2rem; border-radius: 12px; border: 1.5px solid var(--accent); line-height: 1.2; }
.btn:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; color: var(--accent); }
.btn-small { padding: .45rem .8rem; font-size: .92rem; }

/* strona główna */
.solids-bg { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.site-header { position: relative; z-index: 2; }
#tresc, .site-footer { position: relative; z-index: 1; }
.hero, .home-apps, .author-teaser, .more-links { position: relative; z-index: 1; }
.hero { padding-block: 2.75rem 1.25rem; max-width: 44rem; }
.hero h1 { font-size: clamp(1.75rem, 1.2rem + 2.4vw, 2.85rem); line-height: 1.12; }
.hero .lead { font-size: 1.15rem; margin-top: .8rem; }
.hero-eyebrow { display: inline-block; margin: 0 0 .9rem; padding: .25rem .7rem; border-radius: 999px; font-size: .82rem; font-weight: 600;
  color: var(--fg); background: color-mix(in srgb, var(--amber) 22%, var(--bg)); }
.section { padding-block: 1rem 1.5rem; }
.more-links { display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; padding-block: .5rem 2.5rem; margin: 0; font-weight: 500; }
.author-teaser { display: flex; gap: 1.1rem; align-items: flex-start; background: var(--soft); border-radius: 18px; padding: 1.25rem 1.4rem; margin: 1.5rem 0 1rem; max-width: 46rem; }
.author-teaser h2 { font-size: 1.15rem; }
.author-teaser p { margin: .4rem 0 0; }
.author-teaser a { font-weight: 600; }
.at-mark { flex: none; width: 3rem; height: 3rem; border-radius: 50%; display: grid; place-items: center; background: var(--accent); color: var(--accent-ink);
  font-family: var(--font-display); font-weight: 600; font-size: 1.25rem; }

/* wsparcie: „Postaw mi kawę” */
.support { position: relative; z-index: 1; display: flex; gap: 1.1rem; align-items: flex-start; max-width: 46rem; margin: 1rem 0 1.25rem;
  padding: 1.25rem 1.4rem; border-radius: 18px; background: color-mix(in srgb, var(--amber) 12%, var(--bg)); border: 1.5px solid color-mix(in srgb, var(--amber) 30%, var(--bg)); }
.support h2 { font-size: 1.15rem; }
.support p { margin: .4rem 0 0; }
.support-cup { flex: none; width: 3rem; height: 3rem; border-radius: 50%; display: grid; place-items: center; background: var(--amber); color: #fff; }
.support-cup svg { width: 1.6rem; height: 1.6rem; }
.support-cta { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1rem; margin-top: .8rem !important; }
.btn-support { background: var(--amber); border-color: var(--amber); color: #1f1400; }
.support-note { font-size: .85rem; color: var(--muted); }
.support--compact { margin: -1.75rem 0 3rem; padding: 1rem 1.2rem; align-items: center; }
.support--compact h2 { font-size: 1rem; }

/* aplikacje: karty pogrupowane według etapu szkoły */
.app-group { margin-block: 1.25rem 1.75rem; }
.group-h { font-size: .95rem; font-weight: 600; color: var(--muted); display: flex; align-items: center; gap: .75rem; margin-bottom: .8rem; letter-spacing: 0; }
.group-h::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.apps { list-style: none; margin: 0; padding: 0; display: grid; gap: 1rem; grid-template-columns: repeat(auto-fill, minmax(min(100%, 19rem), 1fr)); }
.apps--full { grid-template-columns: repeat(auto-fill, minmax(min(100%, 26rem), 1fr)); }
.app { --tint: var(--accent); display: flex; }
.app--nutka { --tint: #16956a; }
.app--solfezyk { --tint: #8a4fc4; }
.app--glos { --tint: #e39b1c; }
.app-card { flex: 1; display: flex; gap: 1rem; align-items: flex-start; text-decoration: none; color: var(--fg); border-radius: 18px; padding: 1.1rem 1.15rem;
  background: color-mix(in srgb, var(--tint) 9%, var(--bg)); border: 1.5px solid color-mix(in srgb, var(--tint) 18%, var(--bg));
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease; }
.app-card:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--tint) 55%, var(--bg)); box-shadow: 0 10px 24px -14px color-mix(in srgb, var(--tint) 70%, transparent); }
.app-art { flex: none; width: 4.25rem; height: 4.25rem; border-radius: 16px; display: grid; place-items: center; background: color-mix(in srgb, var(--tint) 16%, var(--bg)); }
.app-art svg { width: 3.25rem; height: 3.25rem; }
.app-body { display: flex; flex-direction: column; gap: .2rem; min-width: 0; flex: 1; }
.app-name { font-family: var(--font-display); font-size: 1.12rem; font-weight: 600; line-height: 1.2; letter-spacing: -.01em; }
.app-sub { color: var(--muted); font-size: .92rem; line-height: 1.35; }
.app-desc { color: var(--fg); font-size: .95rem; line-height: 1.5; margin-top: .35rem; }
.app-go { margin-top: .55rem; font-weight: 600; font-size: .93rem; color: var(--accent); }
.app-card:hover .app-go { text-decoration: underline; text-underline-offset: 3px; }
.app-intro { margin: .75rem 0 1rem; }
.app-frame { border: 1px solid var(--line); border-radius: 16px; overflow: hidden; margin-bottom: 3rem; }
.app-frame iframe { display: block; width: 100%; height: min(85vh, 900px); min-height: 560px; border: 0; background: var(--bg); }

/* listy wpisów */
.crumbs { font-size: .9rem; color: var(--muted); padding-block: 1rem 0; }
.crumbs a { color: var(--muted); }
.page-head { padding-block: 1rem 1.25rem; }
.grid { display: grid; gap: 0; border-top: 1px solid var(--line); margin-bottom: 3rem; }
.card { padding-block: 1rem; border-bottom: 1px solid var(--line); display: grid; gap: .25rem; }
.card-title a { color: var(--fg); text-decoration: none; }
.card-title a:hover { color: var(--accent); text-decoration: underline; }
.card-desc { margin: 0; color: var(--muted); font-size: .97rem; }
.card-meta { display: none; }

/* artykuł */
.article { padding-block: 1rem 2.5rem; }
.article-head { padding-bottom: 1rem; margin-bottom: 1.25rem; border-bottom: 1px solid var(--line); }
.article-meta { display: flex; gap: .3rem 1rem; flex-wrap: wrap; font-size: .85rem; color: var(--muted); margin: .8rem 0 0; }
.disclosure { font-size: .88rem; color: var(--muted); margin: .8rem 0 0; }
.toc { margin-bottom: 1.5rem; }
.toc-label { font-family: var(--font-mono); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin: 0 0 .3rem; }
.toc ol { margin: 0; padding-left: 1.25rem; }
.prose h2 { margin: 2rem 0 .6rem; }
.prose h3 { margin: 1.4rem 0 .4rem; }
.prose p, .prose ul, .prose ol { margin: 0 0 1rem; }
.prose li { margin: .25rem 0; }
.prose blockquote { margin: 1.25rem 0; padding: .2rem 0 .2rem 1rem; border-left: 4px solid var(--mark); }
.prose table { border-collapse: collapse; width: 100%; font-size: .95rem; display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--line); padding: .45rem .65rem; text-align: left; }
.prose code { font-family: var(--font-mono); font-size: .92em; background: var(--soft); padding: .05em .35em; border-radius: 4px; }

.faq { margin-top: 2rem; }
.faq h2 { margin-bottom: .5rem; }
.faq-item { border-top: 1px solid var(--line); padding: .55rem 0; }
.faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-item summary { cursor: pointer; font-weight: 600; }
.faq-item p { margin: .45rem 0 .2rem; }
.author-box { margin-top: 2rem; padding-top: 1rem; border-top: 1px solid var(--line); font-size: .95rem; }
.author-name { font-weight: 700; margin: 0; }
.author-role { margin: 0; color: var(--muted); }
.author-bio { margin: .4rem 0 0; }
.related { padding-bottom: 3rem; }
.related h2 { font-size: 1.15rem; margin-bottom: .4rem; }
.related ul { margin: 0; padding-left: 1.2rem; }

.sources { margin-top: 2rem; font-size: .88rem; color: var(--muted); }
.sources h2 { font-size: 1.05rem; margin-bottom: .4rem; color: var(--fg); }
.sources ol { margin: 0; padding-left: 1.2rem; display: grid; gap: .3rem; }

/* produkty w rankingu */
.products { display: grid; gap: 1rem; margin: 1.25rem 0 2rem; }
.product { border: 1px solid var(--line); border-radius: 12px; padding: 1.1rem 1.25rem; min-width: 0; }
.product-head { display: grid; gap: .25rem; }
.product-pos { display: flex; align-items: center; gap: .55rem; margin: 0; }
.product-num { font-family: var(--font-mono); background: var(--mark); color: var(--mark-ink); width: 1.75rem; height: 1.75rem; border-radius: 6px; display: inline-grid; place-items: center; font-size: .9rem; }
.product-for { font-size: .85rem; color: var(--muted); }
.product-name { font-size: 1.25rem; }
.product-price { margin: 0; font-variant-numeric: tabular-nums; }
.product-desc { margin: .6rem 0 0; }
.specs { display: grid; grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr)); gap: .4rem 1rem; margin: .8rem 0 0; font-size: .92rem; }
.specs dt { font-size: .75rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.specs dd { margin: 0; }
.pros-cons { display: grid; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); gap: .75rem 1rem; margin-top: .8rem; }
.pros-cons ul { margin: .2rem 0 0; padding-left: 1.1rem; font-size: .95rem; }
.pc-label { font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; margin: 0; font-weight: 600; }
.pc-label.good { color: var(--good); }
.pc-label.warn { color: var(--warn); }
.verdict { margin: .8rem 0 0; font-size: .97rem; }
.buy { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; margin-top: .9rem; }
.buy-label { font-size: .9rem; color: var(--muted); }

/* okazje */
.deals { display: grid; border-top: 1px solid var(--line); margin-bottom: 1rem; }
.deal { display: flex; gap: .75rem 1.5rem; justify-content: space-between; align-items: center; flex-wrap: wrap; padding-block: .9rem; border-bottom: 1px solid var(--line); }
.deal-main { flex: 1 1 18rem; min-width: 0; display: grid; gap: .25rem; }
.deal-meta { margin: 0; display: flex; gap: .3rem .8rem; flex-wrap: wrap; align-items: center; font-size: .85rem; }
.deal-off { background: var(--mark); color: var(--mark-ink); font-weight: 600; padding: 0 .4rem; border-radius: 4px; }
.deal-title { font-size: 1.05rem; }
.deal-notes { margin: 0; font-size: .9rem; color: var(--warn); }
.deal-code { margin: 0; font-size: .92rem; }
.deal-side { display: flex; align-items: center; gap: 1rem; }
.deal-price { margin: 0; display: grid; justify-items: end; font-variant-numeric: tabular-nums; line-height: 1.25; }
.deal-price strong { font-size: 1.2rem; }
.deal-price s { color: var(--muted); font-size: .9rem; }
.sample-note { margin: .75rem 0 0; color: var(--warn); font-size: .92rem; }
.empty { padding-block: .5rem 2rem; }
.empty h2 { font-size: 1.25rem; margin-bottom: .4rem; }
@media (max-width: 600px) {
  body { font-size: 1rem; }
  .deal-side { width: 100%; justify-content: space-between; }
  .deal-price { justify-items: start; }
  .app-frame iframe { height: 80vh; }
}

/* stopka */
.site-footer { border-top: 1px solid var(--line); margin-top: 1rem; }
.footer-inner { display: grid; gap: 1.25rem 2.5rem; padding-block: 1.5rem 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr)); }
.footer-brand { font-family: var(--font-display); font-weight: 600; margin: 0 0 .2rem; }
.footer-label { display: none; }
.footer-text { margin: 0; font-size: .88rem; color: var(--muted); }
.footer-links { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .3rem 1rem; font-size: .92rem; }
.footer-copy { padding-block: 0 1.5rem; font-size: .8rem; color: var(--muted); }
@media (max-width: 600px) {
  .app-card { padding: .95rem; gap: .85rem; }
  .app-art { width: 3.6rem; height: 3.6rem; border-radius: 14px; }
  .app-art svg { width: 2.75rem; height: 2.75rem; }
  .author-teaser { padding: 1rem; }
  .at-mark { width: 2.5rem; height: 2.5rem; font-size: 1.05rem; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } .app-card:hover { transform: none; } }


/* dawne ulepszenia.css */
/* Rozszerzenia istniejącego wyglądu Matematycznie. */
.hero-note { margin: 1rem 0 0; font-size: .9rem; color: var(--muted); }
.hero-note a { font-weight: 600; }
.apps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.app { min-width: 0; }
.app-card { display: grid; grid-template-columns: 3rem minmax(0, 1fr); align-content: start; gap: .85rem 1rem; padding: 0; overflow: hidden; }
.app-shot { display: block; grid-column: 1 / -1; border-bottom: 1px solid var(--line); background: var(--soft); }
.app-shot img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: contain; }
.app-card .app-art { width: 3rem; height: 3rem; margin-left: 1rem; border-radius: 12px; }
.app-card .app-art svg { width: 2.5rem; height: 2.5rem; }
.app-card .app-body { padding: 0 1rem 1rem; padding-left: 1rem; }
.app-go { display: block; min-height: 2.75rem; padding-top: .55rem; margin-top: .2rem; }
.app-actions { display: flex; flex-wrap: wrap; gap: .75rem 1rem; align-items: center; margin: 1.1rem 0 .5rem; }
.app-actions a { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; }
.app-actions .btn { gap: .5rem; }
.app-author { font-size: .88rem; color: var(--muted); margin: .75rem 0 0; }
.app-overview { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 1.5rem; align-items: start; margin: .5rem 0 1.5rem; }
.app-figure { margin: 0; min-width: 0; }
.app-figure img { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: 14px; background: var(--soft); }
.app-figure figcaption { margin-top: .5rem; color: var(--muted); font-size: .82rem; line-height: 1.5; }
.quick-start { min-width: 0; border: 1px solid var(--line); background: var(--soft); border-radius: 14px; padding: 1.1rem 1.25rem; scroll-margin-top: 1rem; }
.quick-start h2 { font-size: 1.1rem; }
.quick-start p { margin: .65rem 0; }
.quick-start ol { margin: .8rem 0 0; padding-left: 1.3rem; }
.quick-start li { margin: .5rem 0; }
.quick-start .btn { display: inline-flex; align-items: center; min-height: 44px; }
.progress-note { background: var(--soft); border-left: 3px solid var(--accent); padding: .8rem 1rem; margin: 1rem 0 1.5rem; border-radius: 0 10px 10px 0; font-size: .9rem; }
.progress-note p { margin: 0; }
.app-embed { margin: 1rem 0 1.5rem; border: 1px solid var(--line); border-radius: 14px; }
.app-embed > summary { padding: .9rem 1.1rem; font-weight: 600; cursor: pointer; min-height: 48px; }
.app-embed > p { padding: 0 1.1rem; font-size: .9rem; color: var(--muted); }
.app-embed .app-frame { margin: 0; border: 0; border-top: 1px solid var(--line); border-radius: 0 0 14px 14px; }
.app-embed iframe { width: 100%; min-height: 560px; height: 85vh; height: 85svh; }
.app-feedback { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: .75rem 1.5rem; padding: 1.1rem 0 1.75rem; border-top: 1px solid var(--line); }
.app-feedback h2 { font-size: 1.05rem; }
.app-feedback p { margin: .3rem 0 0; color: var(--muted); font-size: .9rem; max-width: 40rem; }
.app-feedback a { display: inline-flex; align-items: center; min-height: 44px; }
.practice-next { border: 1px solid var(--line); background: var(--soft); border-radius: 14px; padding: 1.1rem 1.25rem; margin: 1.5rem 0; }
.practice-next h2 { font-size: 1.15rem; }
.practice-next p { margin: .7rem 0; }
.practice-next .btn { margin: .3rem .5rem .3rem 0; min-height: 44px; }
@media (max-width: 767px) {
  .app-overview { grid-template-columns: minmax(0, 1fr); gap: 1rem; }
  .app-actions .btn { width: 100%; }
  .app-actions > a:not(.btn) { padding-inline: .4rem; }
  .quick-start { padding: 1rem; }
  .app-feedback { align-items: flex-start; }
  .app-feedback .btn { width: 100%; justify-content: center; }
}
@media (max-width: 639px) {
  .apps { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 400px) {
  .app-card { gap: .8rem .5rem; }
  .app-card .app-body { padding-left: .5rem; }
  .app-card .app-name { font-size: 1rem; }
}

/* studio głosu i Solfy */
.voice-steps { display: grid; gap: .75rem; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); margin: 1rem 0 1.5rem; }
.voice-step { border: 1px solid var(--line); border-radius: 14px; padding: 1rem 1.1rem; background: var(--soft); }
.voice-step h3 { margin-bottom: .35rem; }
.voice-step p { margin: 0; font-size: .95rem; color: var(--muted); }
.classes { display: flex; flex-wrap: wrap; gap: .4rem; margin: .6rem 0 0; }
.classes span { background: color-mix(in srgb, var(--accent) 10%, var(--bg)); border: 1px solid color-mix(in srgb, var(--accent) 25%, var(--bg)); border-radius: 999px; padding: .15rem .6rem; font-size: .85rem; font-weight: 600; }
.notes-bg { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }



/* Usprawnienia wspólne: czytelność, dotyk i małe ekrany. */
html { scroll-padding-top: 1rem; }
button, input, select, textarea { font: inherit; }
button, summary, a { touch-action: manipulation; }
button, summary { cursor: pointer; }
h1, h2, h3, .prose a { overflow-wrap: anywhere; }
.nav a, .langs a, .footer-links a, .more-links a {
  display: inline-flex; align-items: center; min-height: 44px;
}
.langs a { justify-content: center; min-width: 44px; }
.nav a { padding-inline: .35rem; border-radius: 8px; }
.nav a[aria-current="page"] { color: var(--accent); background: var(--soft); }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; text-align: center; }
.hero { max-width: 49rem; padding-block: clamp(1.5rem, 5vw, 3.5rem) 1.5rem; }
.hero .lead { max-width: 43rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.35rem; }
.hero-actions .btn { gap: .5rem; }
.app-card { height: 100%; }
.app-shot { overflow: hidden; }
.app-card .app-body { gap: .4rem; }
.app-go { line-height: 1.4; }
.voice-steps { grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr)); }
.pros-cons { grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr)); }
.bk textarea { font-size: 1rem; }
.bk input[type="file"] { max-width: 100%; }
@media (max-width: 767px) {
  .header-inner { display: grid; grid-template-columns: 1fr auto; gap: .5rem; padding-block: .55rem; }
  .header-inner > .brand { grid-column: 1; grid-row: 1; }
  .header-inner > .langs { grid-column: 2; grid-row: 1; }
  .header-inner > .nav { grid-column: 1 / -1; grid-row: 2; display: grid; grid-template-columns: 1fr 1fr; gap: .25rem .5rem; }
  .nav a { padding: .5rem .65rem; background: var(--soft); font-size: .9rem; line-height: 1.35; }
  .hero h1 { font-size: clamp(1.65rem, 6vw, 2.65rem); line-height: 1.2; }
  .hero .lead { font-size: 1.05rem; }
  .hero-eyebrow { font-size: .75rem; border-radius: 12px; }
  .hero-actions .btn { flex: 1 1 12rem; }
  .author-teaser { gap: .75rem; }
  .author-teaser > div:last-child { min-width: 0; }
  .footer-inner { gap: 1.5rem; }
  .app-embed iframe { min-height: 420px; }
  input, select, textarea { font-size: 16px; }
}
@media (max-width: 360px) {
  .author-teaser { display: block; }
  .at-mark { margin-bottom: .75rem; }
}