:root {
  color-scheme: light;
  --bg: oklch(1 0 0);
  --surface: oklch(0.97 0.006 210);
  --surface-strong: oklch(0.935 0.012 210);
  --ink: oklch(0.22 0.025 215);
  --muted: oklch(0.46 0.028 215);
  --line: oklch(0.87 0.012 210);
  --line-strong: oklch(0.72 0.035 210);
  --primary: oklch(0.52 0.09 210);
  --primary-dark: oklch(0.39 0.085 210);
  --primary-pale: oklch(0.94 0.025 210);
  --accent: oklch(0.72 0.14 72);
  --danger: oklch(0.5 0.16 24);
  --white: oklch(1 0 0);
  --radius: 14px;
  --radius-small: 9px;
  --shell: min(1160px, calc(100% - 40px));
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --z-sticky: 20;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
img { max-width: 100%; }
[hidden] { display: none !important; }
h1, h2, h3, h4, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.12; letter-spacing: -0.025em; text-wrap: balance; }
h1 { font-size: clamp(2.55rem, 6vw, 5rem); max-width: 13ch; margin-bottom: 24px; }
h2 { font-size: clamp(1.75rem, 3vw, 2.75rem); }
h3 { font-size: 1.15rem; }
p { text-wrap: pretty; }

.shell { width: var(--shell); margin-inline: auto; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 100; padding: 10px 14px; background: var(--ink); color: var(--white); transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }

.site-header { position: sticky; top: 0; z-index: var(--z-sticky); background: color-mix(in oklch, var(--bg) 94%, transparent); border-bottom: 1px solid var(--line); backdrop-filter: blur(10px); }
.header-inner { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); font-weight: 760; letter-spacing: -0.02em; text-decoration: none; white-space: nowrap; }
.brand-mark { display: grid; grid-template-columns: repeat(2, 8px); gap: 2px; width: 18px; height: 18px; transform: rotate(-3deg); }
.brand-mark i { display: block; background: var(--primary); }
.brand-mark i:nth-child(2), .brand-mark i:nth-child(3) { background: var(--accent); }
.primary-nav { display: flex; align-items: center; gap: 4px; }
.primary-nav a { padding: 8px 12px; border-radius: 8px; color: var(--muted); font-size: 0.9rem; font-weight: 650; text-decoration: none; }
.primary-nav a:hover, .primary-nav a[aria-current="page"] { background: var(--surface); color: var(--ink); }

.hero { display: grid; grid-template-columns: minmax(0, 1fr) 310px; align-items: end; gap: 80px; padding-block: 84px 52px; }
.hero-copy { max-width: 820px; }
.status-line { display: flex; align-items: center; gap: 9px; margin-bottom: 22px; color: var(--primary-dark); font-size: 0.84rem; font-weight: 720; }
.status-line span, .review-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex: 0 0 auto; }
.hero-lede { max-width: 650px; margin-bottom: 27px; color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.28rem); line-height: 1.55; }
.trust-list { display: flex; flex-wrap: wrap; gap: 8px 22px; margin: 0; padding: 0; list-style: none; color: var(--muted); font-size: 0.86rem; font-weight: 650; }
.trust-list li::before { content: "✓"; margin-right: 7px; color: var(--primary); font-weight: 850; }
.today-note { border-top: 2px solid var(--primary); padding-top: 18px; }
.today-note > span { color: var(--muted); font-size: 0.78rem; font-weight: 720; }
.today-note p { margin: 12px 0 18px; font-size: 1.18rem; font-weight: 740; line-height: 1.35; }
.today-note a { color: var(--primary-dark); font-size: 0.88rem; font-weight: 720; text-decoration: none; }
.today-note a span { display: inline-block; transition: transform 180ms var(--ease-out); }
.today-note a:hover span { transform: translateX(4px); }

.home-tool { margin-bottom: 110px; }
.tool-shell { overflow: clip; background: var(--surface); border: 1px solid var(--line-strong); border-radius: var(--radius); }
.tool-tabs { display: flex; padding: 10px 10px 0; border-bottom: 1px solid var(--line); background: var(--bg); }
.tool-tabs button { position: relative; min-height: 46px; padding: 10px 18px 13px; border: 0; background: transparent; color: var(--muted); font-weight: 720; cursor: pointer; }
.tool-tabs button::after { content: ""; position: absolute; right: 16px; bottom: -1px; left: 16px; height: 2px; background: transparent; }
.tool-tabs button[aria-selected="true"] { color: var(--primary-dark); }
.tool-tabs button[aria-selected="true"]::after { background: var(--primary); }
.tool-panel { padding: 34px; }
.tool-form { display: grid; grid-template-columns: minmax(180px, 1fr) 130px; gap: 22px 18px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field-wide { grid-column: 1 / -1; }
.field label { font-size: 0.82rem; font-weight: 760; }
.field input { width: 100%; min-height: 52px; border: 1px solid var(--line-strong); border-radius: var(--radius-small); background: var(--bg); color: var(--ink); padding: 11px 14px; outline: 0; transition: border-color 160ms var(--ease-out), background-color 160ms var(--ease-out); }
.field input:hover { border-color: var(--primary); }
.field input:focus { border-color: var(--primary-dark); outline: 3px solid var(--primary-pale); outline-offset: 1px; }
.field input::placeholder { color: oklch(0.48 0.018 215); opacity: 1; }
.field small { color: var(--muted); font-size: 0.75rem; }
.form-actions { display: flex; align-items: center; gap: 18px; margin-top: 2px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; border-radius: 9px; padding: 10px 17px; font-weight: 740; text-decoration: none; cursor: pointer; transition: background-color 170ms var(--ease-out), color 170ms var(--ease-out), transform 170ms var(--ease-out); }
.button:active { transform: translateY(1px); }
.button-primary { border: 1px solid var(--primary-dark); background: var(--primary-dark); color: var(--white); }
.button-primary:hover { background: oklch(0.33 0.075 210); }
.button-secondary { border: 1px solid var(--white); color: var(--white); }
.button-secondary:hover { background: var(--white); color: var(--primary-dark); }
.button-outline { border: 1px solid var(--primary); background: var(--bg); color: var(--primary-dark); }
.button-outline:hover { background: var(--primary-pale); }
.button-quiet, .example-button { border: 0; background: transparent; color: var(--primary-dark); text-decoration: underline; text-underline-offset: 4px; }
.example-button { padding: 8px 0; font-size: 0.84rem; font-weight: 680; cursor: pointer; }
.form-error { margin: -3px 0 0; color: var(--danger); font-size: 0.85rem; font-weight: 650; }
.tool-results { margin-top: 28px; }
.results-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--line-strong); }
.results-heading p { margin: 0; font-weight: 760; }
.results-heading span { color: var(--muted); font-size: 0.8rem; }
.solve-result { padding: 25px 0; border-bottom: 1px solid var(--line); }
.solve-result:last-child { border-bottom: 0; padding-bottom: 0; }
.solve-result-head { display: grid; grid-template-columns: 72px minmax(0, 1fr) auto; align-items: center; gap: 14px; }
.solve-result-head h3 { margin: 0; }
.result-rank, .hint-label { color: var(--muted); font-size: 0.72rem; font-weight: 760; text-transform: uppercase; letter-spacing: 0.05em; }
.length-badge { display: inline-flex; min-width: 31px; height: 31px; align-items: center; justify-content: center; border: 1px solid var(--line-strong); border-radius: 7px; color: var(--muted); font-size: 0.78rem; font-weight: 760; }
.hint-line, .result-answer, .result-why { display: grid; grid-template-columns: 90px minmax(0, 1fr); gap: 14px; margin-top: 17px; }
.hint-line p, .result-why p { margin: 0; max-width: 70ch; }
.hint-secondary { padding-top: 14px; border-top: 1px dashed var(--line-strong); }
.result-actions { display: flex; flex-wrap: wrap; gap: 10px 12px; margin-top: 20px; padding-left: 104px; }
.answer-cells { display: flex; flex-wrap: wrap; gap: 5px; }
.answer-cells span { display: inline-flex; width: 38px; height: 42px; align-items: center; justify-content: center; border: 1px solid var(--ink); background: var(--bg); font-size: 1.05rem; font-weight: 820; line-height: 1; }
.empty-state { padding: 32px 0 8px; max-width: 620px; }
.empty-state h3 { margin: 16px 0 8px; }
.empty-state p { color: var(--muted); }
.empty-mark { display: grid; grid-template-columns: repeat(2, 12px); gap: 3px; width: max-content; }
.empty-mark i { width: 12px; height: 12px; border: 1px solid var(--primary); }
.empty-mark i:nth-child(2), .empty-mark i:nth-child(3) { background: var(--primary); }
.explanation-result { padding-top: 5px; }
.explanation-status { display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: 0.78rem; font-weight: 700; }
.explanation-status p { margin: 0; }
.explanation-result h3 { margin: 13px 0 19px; font-size: 1.4rem; }
.explanation-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 25px 0 20px; border-block: 1px solid var(--line-strong); }
.explanation-grid section { padding: 22px; border-right: 1px solid var(--line); }
.explanation-grid section:first-child { padding-left: 0; }
.explanation-grid section:last-child { border-right: 0; }
.explanation-grid h4 { margin-bottom: 8px; font-size: 0.8rem; }
.explanation-grid p { margin: 0; color: var(--muted); font-size: 0.9rem; }
.text-link { color: var(--primary-dark); font-weight: 730; text-decoration: none; }

.section-split { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr); gap: 90px; align-items: start; margin-bottom: 110px; }
.section-split h2 { max-width: 15ch; }
.section-intro { color: var(--primary-dark); font-weight: 720; }
.principle-list > div { display: grid; grid-template-columns: 48px 1fr; gap: 18px; padding: 21px 0; border-top: 1px solid var(--line); }
.principle-list > div:last-child { border-bottom: 1px solid var(--line); }
.principle-list strong { color: var(--primary); font-variant-numeric: tabular-nums; }
.principle-list p { margin: 0; color: var(--muted); }
.principle-list b { color: var(--ink); }
.latest-section { margin-bottom: 110px; }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 30px; margin-bottom: 24px; }
.section-heading h2 { margin-bottom: 6px; }
.section-heading p { margin: 0; color: var(--muted); }
.section-heading > a { color: var(--primary-dark); font-size: 0.88rem; font-weight: 700; text-decoration: none; }
.daily-hub-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.daily-hub-links a { padding: 9px 13px; border: 1px solid var(--line-strong); border-radius: 8px; color: var(--primary-dark); font-size: 0.86rem; font-weight: 720; text-decoration: none; }
.daily-hub-links a:hover { border-color: var(--primary); background: var(--accent-soft); }
.clue-list { border-top: 1px solid var(--line-strong); }
.clue-row { display: grid; grid-template-columns: minmax(0, 1fr) auto 28px; align-items: center; gap: 16px; min-height: 78px; border-bottom: 1px solid var(--line); text-decoration: none; }
.clue-row:hover .row-arrow, .word-directory a:hover .row-arrow { transform: translateX(4px); }
.clue-row-main { display: flex; flex-direction: column; gap: 3px; }
.clue-row-main strong { font-size: 1rem; }
.clue-row-main small { color: var(--muted); }
.row-arrow { color: var(--primary); font-size: 1.2rem; transition: transform 180ms var(--ease-out); }
.answer-strip { background: var(--primary-dark); color: var(--white); padding-block: 55px; }
.answer-strip-inner { display: grid; grid-template-columns: minmax(250px, 1fr) minmax(250px, 1.3fr) auto; align-items: center; gap: 42px; }
.answer-strip h2 { margin-bottom: 8px; font-size: 1.6rem; }
.answer-strip p { margin: 0; color: oklch(0.9 0.02 210); }
.answer-links { display: flex; flex-wrap: wrap; gap: 8px; }
.answer-links a { min-width: 64px; padding: 9px 12px; border: 1px solid oklch(0.64 0.07 210); border-radius: 8px; text-align: center; font-weight: 800; text-decoration: none; }
.answer-links a:hover { background: var(--white); color: var(--primary-dark); }

.page-hero { padding-block: 64px 42px; }
.page-hero h1 { margin-top: 28px; margin-bottom: 20px; max-width: 16ch; font-size: clamp(2.45rem, 5vw, 4.6rem); }
.page-hero > p { max-width: 680px; color: var(--muted); font-size: 1.1rem; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: 0.78rem; }
.breadcrumbs a { text-decoration: none; }
.breadcrumbs a:hover { color: var(--primary-dark); }
.standalone-tool { margin-bottom: 90px; }
.guidance { max-width: 900px; margin-bottom: 100px; }
.guidance h2 { max-width: 18ch; }
.guidance-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; }
.guidance-columns p { color: var(--muted); }

.directory-layout { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 70px; margin-bottom: 110px; }
.directory-layout aside { position: sticky; top: 100px; align-self: start; border-top: 2px solid var(--primary); padding-top: 15px; }
.directory-layout aside p { margin-bottom: 8px; font-weight: 760; }
.directory-layout aside span { color: var(--muted); font-size: 0.9rem; }
.word-directory { border-top: 1px solid var(--line-strong); }
.word-directory a { display: grid; grid-template-columns: 100px minmax(0, 1fr) 26px; gap: 20px; align-items: center; min-height: 92px; border-bottom: 1px solid var(--line); text-decoration: none; }
.word-name { color: var(--primary-dark); font-size: 1.25rem; font-weight: 850; letter-spacing: 0.04em; }
.word-directory a > span:nth-child(2) { color: var(--muted); }

.article-layout { display: grid; grid-template-columns: minmax(0, 760px) 260px; gap: 90px; align-items: start; padding-block: 54px 110px; }
.article-main .breadcrumbs { margin-bottom: 42px; }
.article-main > header h1 { max-width: 19ch; font-size: clamp(2.4rem, 5vw, 4.4rem); }
.article-main > section { margin-block: 48px; }
.article-main > section h2 { margin-bottom: 15px; font-size: 1.55rem; }
.article-main > section > p { max-width: 72ch; }
.content-kind { margin-bottom: 10px; color: var(--primary-dark); font-size: 0.78rem; font-weight: 760; text-transform: uppercase; letter-spacing: 0.055em; }
.answer-header { display: flex; justify-content: space-between; align-items: end; gap: 30px; padding-bottom: 28px; border-bottom: 1px solid var(--line-strong); }
.answer-header h1 { margin: 0; font-size: clamp(3.5rem, 8vw, 5.5rem); letter-spacing: 0.08em; }
.pronunciation, .review-date { margin: 8px 0 0; color: var(--muted); }
.pattern-list { display: grid; gap: 0; margin: 0 0 16px; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.pattern-list li { padding: 13px 0; border-bottom: 1px solid var(--line); }
.pattern-list li::before { content: "↳"; margin-right: 11px; color: var(--primary); }
.source-note { color: var(--muted); font-size: 0.82rem; }
.article-aside { position: sticky; top: 100px; padding-top: 15px; border-top: 2px solid var(--primary); }
.article-aside > p { color: var(--muted); font-size: 0.76rem; font-weight: 760; text-transform: uppercase; letter-spacing: 0.05em; }
.article-aside > a:not(.aside-all) { display: flex; flex-direction: column; gap: 3px; padding: 14px 0; border-bottom: 1px solid var(--line); text-decoration: none; }
.article-aside > a strong { color: var(--primary-dark); }
.article-aside > a span { color: var(--muted); font-size: 0.8rem; line-height: 1.45; }
.aside-all { display: inline-block; margin-top: 16px; color: var(--primary-dark); font-size: 0.84rem; font-weight: 730; text-decoration: none; }
.answer-reveal { padding: 25px; background: var(--surface); border-radius: var(--radius-small); }
.answer-reveal > p { margin-bottom: 13px; color: var(--muted); font-size: 0.78rem; font-weight: 760; text-transform: uppercase; }
.mechanism-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 38px; }
.mechanism-grid > div { border-top: 1px solid var(--line-strong); padding-top: 18px; }
.mechanism-grid h2 { font-size: 1.15rem !important; }
.hint-aside > span { display: block; color: var(--muted); }

.type-directory { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 0 34px; margin-bottom: 110px; border-top: 1px solid var(--line-strong); }
.type-directory a { min-height: 210px; padding: 28px 0; border-bottom: 1px solid var(--line); text-decoration: none; }
.type-directory a > span { font-size: 1.25rem; font-weight: 780; }
.type-directory p { margin: 10px 0 28px; color: var(--muted); }
.type-directory b { color: var(--primary-dark); font-size: 0.85rem; }
.type-directory i { display: inline-block; font-style: normal; transition: transform 180ms var(--ease-out); }
.type-directory a:hover i { transform: translateX(4px); }
.guide-article { max-width: 940px; padding-block: 54px 110px; }
.guide-article > header { margin: 48px 0 62px; }
.guide-article > header h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
.guide-article > header > p:last-child { max-width: 650px; color: var(--muted); font-size: 1.1rem; }
.signal-section { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 55px; margin-bottom: 55px; }
.signal-section h2, .guide-article > section h2 { font-size: 1.45rem; }
.signal-section ul { margin: 0; padding-left: 20px; }
.signal-section li { margin-bottom: 9px; }
.worked-example { padding: 28px; background: var(--surface); border-radius: var(--radius); }
.worked-example > span { color: var(--muted); font-size: 0.76rem; font-weight: 760; text-transform: uppercase; }
.worked-example > p:first-of-type { margin: 15px 0; font-size: 1.4rem; font-weight: 760; }
.example-answer { display: flex; align-items: baseline; gap: 12px; padding: 12px 0; border-block: 1px solid var(--line); }
.example-answer small { color: var(--muted); }
.example-answer strong { color: var(--primary-dark); letter-spacing: 0.06em; }
.worked-example > p:last-child { margin: 17px 0 0; }

.clinic-archive { margin-bottom: 110px; border-top: 1px solid var(--line-strong); }
.clinic-archive a { display: grid; grid-template-columns: minmax(0, 1fr) auto 30px; align-items: center; gap: 20px; min-height: 84px; border-bottom: 1px solid var(--line); text-decoration: none; }
.clinic-archive time { font-weight: 760; }
.clinic-archive span { color: var(--muted); }
.clinic-archive b { color: var(--primary); }
.clinic-list { margin-bottom: 110px; border-top: 1px solid var(--line-strong); }
.clinic-list article { display: grid; grid-template-columns: 70px minmax(0, 1fr); gap: 24px; padding: 34px 0; border-bottom: 1px solid var(--line); }
.clinic-number { color: var(--primary); font-weight: 780; font-variant-numeric: tabular-nums; }
.clinic-content > span { color: var(--muted); font-size: 0.76rem; font-weight: 700; }
.clinic-content h2 { margin: 7px 0 15px; font-size: 1.35rem; }
.clinic-content details { margin-bottom: 14px; }
.clinic-content summary { width: max-content; color: var(--primary-dark); font-size: 0.86rem; font-weight: 720; cursor: pointer; }
.clinic-content details p { max-width: 650px; margin: 10px 0 0; color: var(--muted); }
.clinic-content > a { color: var(--primary-dark); font-size: 0.86rem; font-weight: 720; text-decoration: none; }

.prose-page { max-width: 760px; padding-block: 54px 110px; }
.prose-page .breadcrumbs { margin-bottom: 48px; }
.prose-page h1 { font-size: clamp(2.6rem, 5vw, 4.5rem); }
.prose-page h2 { margin-top: 48px; font-size: 1.5rem; }
.prose-page p, .prose-page li { max-width: 70ch; }
.prose-page p { color: var(--muted); }
.not-found { min-height: 65vh; display: flex; flex-direction: column; align-items: flex-start; justify-content: center; }
.not-found h1 { margin: 25px 0 12px; font-size: clamp(2.5rem, 6vw, 4.6rem); }
.not-found p { color: var(--muted); }
.empty-grid { display: grid; grid-template-columns: repeat(2, 42px); gap: 4px; }
.empty-grid i { display: flex; width: 42px; height: 42px; align-items: center; justify-content: center; border: 1px solid var(--ink); font-style: normal; font-weight: 800; }
.empty-grid i:nth-child(2), .empty-grid i:nth-child(3) { background: var(--ink); color: var(--white); }

.site-footer { border-top: 1px solid var(--line); background: var(--surface); }
.footer-grid { min-height: 190px; display: flex; align-items: center; justify-content: space-between; gap: 50px; }
.footer-brand { margin-bottom: 8px; }
.footer-grid p { margin: 0; color: var(--muted); font-size: 0.88rem; }
.footer-grid nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 9px 22px; }
.footer-grid nav a { color: var(--muted); font-size: 0.84rem; font-weight: 650; text-decoration: none; }
.footer-grid nav a:hover { color: var(--primary-dark); }

@media (max-width: 860px) {
  :root { --shell: min(100% - 30px, 720px); }
  .header-inner { min-height: 62px; }
  .primary-nav { overflow-x: auto; margin-right: -15px; padding-right: 15px; }
  .primary-nav a { padding: 7px 9px; font-size: 0.82rem; }
  .hero { grid-template-columns: 1fr; gap: 35px; padding-top: 60px; }
  .today-note { max-width: 420px; }
  .section-split, .article-layout, .directory-layout { grid-template-columns: 1fr; gap: 45px; }
  .article-aside, .directory-layout aside { position: static; }
  .answer-strip-inner { grid-template-columns: 1fr; }
  .answer-strip-inner > .button { width: max-content; }
  .explanation-grid { grid-template-columns: 1fr; }
  .explanation-grid section, .explanation-grid section:first-child { padding: 18px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .explanation-grid section:last-child { border-bottom: 0; }
}

@media (max-width: 620px) {
  :root { --shell: calc(100% - 24px); }
  body { font-size: 15px; }
  .header-inner { align-items: flex-start; flex-direction: column; gap: 8px; padding-block: 11px 9px; }
  .primary-nav { width: calc(100% + 12px); margin-right: -12px; }
  .primary-nav a { white-space: nowrap; }
  .hero { padding-block: 44px 34px; }
  .hero h1 { font-size: 2.65rem; }
  .home-tool, .latest-section, .section-split { margin-bottom: 76px; }
  .tool-panel { padding: 23px 16px; }
  .tool-tabs { padding-inline: 4px; }
  .tool-tabs button { flex: 1; padding-inline: 8px; font-size: 0.84rem; }
  .tool-form { grid-template-columns: 1fr; }
  .field-wide { grid-column: auto; }
  .form-actions { align-items: stretch; flex-direction: column; gap: 7px; }
  .button-primary { width: 100%; }
  .solve-result-head { grid-template-columns: minmax(0, 1fr) auto; }
  .result-rank { grid-column: 1 / -1; }
  .hint-line, .result-answer, .result-why { grid-template-columns: 1fr; gap: 5px; }
  .result-actions { padding-left: 0; }
  .answer-cells span { width: 34px; height: 38px; }
  .section-split { gap: 30px; }
  .section-heading { align-items: flex-start; flex-direction: column; }
  .clue-row { min-height: 84px; }
  .answer-strip { padding-block: 42px; }
  .page-hero { padding-block: 42px 26px; }
  .standalone-tool { margin-bottom: 70px; }
  .guidance-columns, .signal-section, .mechanism-grid { grid-template-columns: 1fr; gap: 22px; }
  .word-directory a { grid-template-columns: 72px minmax(0, 1fr) 20px; gap: 12px; }
  .word-directory a > span:nth-child(2) { font-size: 0.86rem; }
  .article-layout { padding-block: 36px 80px; }
  .answer-header { align-items: flex-start; flex-direction: column; }
  .answer-header h1 { font-size: 3.2rem; }
  .article-main .breadcrumbs { margin-bottom: 30px; }
  .clinic-list article { grid-template-columns: 38px minmax(0, 1fr); gap: 12px; }
  .clinic-archive a { grid-template-columns: 1fr 24px; padding-block: 18px; }
  .clinic-archive a span { grid-column: 1; grid-row: 2; }
  .clinic-archive a b { grid-column: 2; grid-row: 1 / 3; }
  .footer-grid { align-items: flex-start; flex-direction: column; padding-block: 36px; }
  .footer-grid nav { justify-content: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
}