/* ============================================================
   BKU — Real-Human Voice Validation
   Brand system: ANNOTATION
   Paper / Ink / one accent (burnt sienna, from the BKU mark's dot)
   Newsreader (display serif) · Inter (text) · IBM Plex Mono (labels)
   ============================================================ */

/* ---------- Fonts (self-hosted) ---------- */
@font-face {
  font-family: 'Newsreader';
  src: url('assets/fonts/newsreader-latin-standard-normal.woff2') format('woff2-variations'),
       url('assets/fonts/newsreader-latin-standard-normal.woff2') format('woff2');
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Newsreader';
  src: url('assets/fonts/newsreader-latin-standard-italic.woff2') format('woff2-variations'),
       url('assets/fonts/newsreader-latin-standard-italic.woff2') format('woff2');
  font-weight: 200 800;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: 'Inter';
  src: url('assets/fonts/inter-latin-standard-normal.woff2') format('woff2-variations'),
       url('assets/fonts/inter-latin-standard-normal.woff2') format('woff2');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Mono';
  src: url('assets/fonts/ibm-plex-mono-latin-400-normal.woff2') format('woff2');
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Mono';
  src: url('assets/fonts/ibm-plex-mono-latin-500-normal.woff2') format('woff2');
  font-weight: 500; font-style: normal; font-display: swap;
}

/* ---------- Tokens ---------- */
:root {
  --paper: #FAF7F2;
  --paper-2: #F3EEE5;
  --ink: #17191B;
  --ink-2: #3A4046;
  --ink-60: #575E66;
  --hair: #E2DACC;
  --hair-2: #D5CCBB;
  --accent: #AE3E17;          /* burnt sienna — the dot in the BKU mark */
  --accent-soft: #C2481D;     /* non-text marks only */
  --accent-dark: #E8703C;     /* accent on ink */
  --paper-on-ink: #F5F1EA;
  --hair-on-ink: rgba(245, 241, 234, .18);
  --dim-on-ink: rgba(245, 241, 234, .68);

  --serif: 'Newsreader', 'Iowan Old Style', Georgia, 'Times New Roman', serif;
  --sans: 'Inter', -apple-system, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --mono: 'IBM Plex Mono', 'SFMono-Regular', Menlo, Consolas, monospace;

  --max: 1200px;
  --pad: clamp(20px, 4.5vw, 52px);
  --sec-gap: clamp(84px, 11vw, 148px);
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  font-weight: 400;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--accent); color: var(--paper); }
a { color: inherit; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3 { font-family: var(--serif); font-optical-sizing: auto; font-weight: 450; margin: 0; }
p { margin: 0; }
.wrap { max-width: var(--max); margin-inline: auto; padding-inline: var(--pad); }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--ink); color: var(--paper); padding: 10px 16px;
  font-family: var(--mono); font-size: 12px; text-decoration: none;
}
.skip-link:focus { left: 0; }

/* ---------- Type utilities ---------- */
.mono-label {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-60);
}
.mono-label.accent { color: var(--accent); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: var(--paper);
  border-bottom: 1px solid var(--hair);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; height: 68px;
}
.brand { display: inline-flex; align-items: baseline; gap: 12px; text-decoration: none; }
.brand-mark {
  font-family: var(--sans); font-weight: 650; font-size: 21px;
  letter-spacing: -.03em; color: var(--ink);
}
.brand-mark .dot { color: var(--accent-soft); }
.brand-sub {
  font-family: var(--mono); font-size: 10px; font-weight: 500;
  letter-spacing: .2em; color: var(--ink-60); text-transform: uppercase;
  transform: translateY(-1px);
}
.site-nav { display: flex; align-items: center; gap: 30px; }
.site-nav a {
  font-size: 13.5px; font-weight: 480; color: var(--ink-2); text-decoration: none;
  letter-spacing: .005em;
}
.site-nav a:hover { color: var(--accent); }
.nav-pdf {
  font-family: var(--mono); font-size: 11px !important; font-weight: 500;
  letter-spacing: .1em; text-transform: uppercase;
  border: 1px solid var(--ink); padding: 9px 14px; color: var(--ink) !important;
}
.nav-pdf:hover { background: var(--ink); color: var(--paper) !important; }
.nav-toggle {
  display: none; background: none; border: 1px solid var(--hair-2);
  font-family: var(--mono); font-size: 11px; letter-spacing: .12em;
  padding: 9px 13px; color: var(--ink); cursor: pointer;
}

/* ---------- Hero ---------- */
.hero { padding-top: clamp(64px, 9vw, 120px); }
.hero .kicker { margin-bottom: 28px; display: flex; align-items: center; gap: 10px; }
.kicker-rule { width: 44px; height: 1px; background: var(--accent-soft); }
.hero h1 {
  font-size: clamp(46px, 7.4vw, 96px);
  line-height: 1.01;
  letter-spacing: -.018em;
  max-width: 12.5ch;
}
.hero h1 .line { display: block; }
.hero h1 .em { font-style: italic; font-weight: 420; }
.hero h1 .end { color: var(--accent-soft); }
.hero-lede {
  margin-top: 34px; max-width: 620px;
  font-size: clamp(17px, 1.9vw, 20px); line-height: 1.6; color: var(--ink-2);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 38px; }

.button {
  display: inline-flex; align-items: center; gap: 10px;
  min-height: 50px; padding: 0 24px;
  font-family: var(--mono); font-size: 12px; font-weight: 500;
  letter-spacing: .1em; text-transform: uppercase; text-decoration: none;
  border: 1px solid var(--ink); border-radius: 0; cursor: pointer;
  transition: background-color .18s ease, color .18s ease, border-color .18s ease;
}
.button.primary { background: var(--ink); color: var(--paper); }
.button.primary:hover { background: var(--accent); border-color: var(--accent); }
.button.ghost { background: transparent; color: var(--ink); }
.button.ghost:hover { border-color: var(--accent); color: var(--accent); }
.button .ar { font-family: var(--sans); }

.hero-fig { margin-top: clamp(48px, 7vw, 84px); }
.fig-frame { border-top: 1px solid var(--hair); border-bottom: 1px solid var(--hair); padding: 8px 0; }
.fig-caption {
  display: flex; justify-content: space-between; gap: 16px; margin-top: 10px;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--ink-60);
}
.hero-meta {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  margin-top: clamp(40px, 5vw, 64px);
  border-top: 1px solid var(--hair);
}
.hero-meta > div { padding: 20px 24px 0 0; }
.hero-meta > div + div { padding-left: 24px; border-left: 1px solid var(--hair); }
.hero-meta .k { display: block; }
.hero-meta .v { display: block; margin-top: 8px; font-size: 15px; font-weight: 480; color: var(--ink); }

/* ---------- Statement ---------- */
.statement { padding: var(--sec-gap) 0 0; }
.statement blockquote {
  margin: 0; border-top: 1px solid var(--hair);
  padding-top: clamp(40px, 6vw, 72px);
}
.statement p {
  font-family: var(--serif); font-size: clamp(30px, 4.4vw, 58px);
  line-height: 1.14; letter-spacing: -.012em; max-width: 22ch; font-weight: 420;
}
.statement .em { font-style: italic; }

/* ---------- Sections ---------- */
.section { padding-top: var(--sec-gap); }
.sec-rule { border-top: 1px solid var(--hair); }
.sec-grid {
  display: grid; grid-template-columns: 150px minmax(0, 1fr);
  gap: clamp(24px, 4vw, 64px);
  padding-top: 26px;
}
.sec-side { display: flex; flex-direction: column; gap: 8px; }
.sec-no {
  font-family: var(--mono); font-size: 12px; font-weight: 500;
  letter-spacing: .14em; color: var(--accent);
}
.sec-name {
  font-family: var(--mono); font-size: 10.5px; font-weight: 500;
  letter-spacing: .18em; text-transform: uppercase; color: var(--ink-60);
}
.sec-body h2 {
  font-size: clamp(32px, 4.3vw, 58px);
  line-height: 1.06; letter-spacing: -.015em; max-width: 20ch;
}
.sec-body .lede { margin-top: 24px; max-width: 640px; font-size: 17.5px; color: var(--ink-2); }
.sec-body .lede + .lede { margin-top: 14px; }

/* ---------- 01 The gap ---------- */
.behavior-list {
  list-style: none; margin: 44px 0 0; padding: 0;
  display: grid; grid-template-columns: 1fr 1fr; column-gap: clamp(24px, 4vw, 56px);
}
.behavior-list li {
  display: flex; gap: 14px; align-items: baseline;
  padding: 13px 0; border-top: 1px solid var(--hair);
  font-size: 15.5px; color: var(--ink-2);
}
.behavior-list .idx {
  font-family: var(--mono); font-size: 10.5px; font-weight: 500;
  color: var(--accent); letter-spacing: .1em; min-width: 22px;
}
.excerpts { margin-top: clamp(48px, 6vw, 72px); }
.excerpt-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(20px, 3vw, 40px); margin-top: 18px; }
.excerpt {
  border-top: 2px solid var(--ink);
  padding-top: 20px;
  display: flex; flex-direction: column; gap: 16px; justify-content: space-between;
}
.excerpt q {
  quotes: '\201C' '\201D';
  font-family: var(--serif); font-style: italic; font-weight: 430;
  font-size: clamp(19px, 1.9vw, 23px); line-height: 1.38; color: var(--ink);
}
.excerpt .tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 10.5px; font-weight: 500;
  letter-spacing: .13em; color: var(--accent);
}
.excerpt .tag::before { content: ''; width: 7px; height: 7px; background: var(--accent-soft); }
.fig-note { margin-top: 26px; font-size: 13px; color: var(--ink-60); max-width: 560px; }
.gap-kicker {
  margin-top: clamp(44px, 6vw, 64px); border-top: 1px solid var(--hair); padding-top: 24px;
  font-family: var(--serif); font-style: italic; font-size: clamp(19px, 2.2vw, 25px);
  line-height: 1.4; color: var(--ink); max-width: 34ch; font-weight: 420;
}

/* ---------- 02 Services ---------- */
.service-list { margin-top: clamp(40px, 5vw, 56px); border-top: 1px solid var(--hair); }
.service {
  display: grid; grid-template-columns: 64px minmax(0,1fr) minmax(0,1.35fr);
  gap: clamp(16px, 3vw, 48px);
  padding: clamp(26px, 3.4vw, 40px) 0; border-bottom: 1px solid var(--hair);
}
.service .s-no { font-family: var(--mono); font-size: 12px; font-weight: 500; color: var(--accent); padding-top: 7px; }
.service h3 { font-size: clamp(23px, 2.5vw, 30px); line-height: 1.15; letter-spacing: -.012em; font-weight: 460; }
.service p { font-size: 15.5px; color: var(--ink-2); max-width: 56ch; }

/* ---------- 03 Why real humans (ink plate) ---------- */
.plate { margin-top: var(--sec-gap); background: var(--ink); color: var(--paper-on-ink); }
.plate .sec-rule { border-top-color: transparent; }
.plate-inner { padding: clamp(72px, 9vw, 120px) 0 clamp(76px, 9vw, 120px); }
.plate .sec-no { color: var(--accent-dark); }
.plate .sec-name { color: var(--dim-on-ink); }
.plate h2 { color: var(--paper-on-ink); }
.plate .lede { color: var(--dim-on-ink); }
.flow { display: flex; align-items: stretch; gap: 0; margin-top: clamp(48px, 6vw, 72px); }
.flow-node { flex: 1 1 0; border: 1px solid var(--hair-on-ink); padding: 18px 16px 20px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.flow-node .fk { font-family: var(--mono); font-size: 10px; font-weight: 500; letter-spacing: .14em; color: var(--dim-on-ink); text-transform: uppercase; }
.flow-node .fv { font-size: 14.5px; font-weight: 480; line-height: 1.35; }
.flow-node.final { border-color: var(--accent-dark); }
.flow-node.final .fk { color: var(--accent-dark); }
.flow-arrow { display: flex; align-items: center; justify-content: center; padding: 0 10px; color: var(--dim-on-ink); font-family: var(--mono); font-size: 14px; }
.flow-arrow .gl::before { content: '→'; }
.flow-close {
  margin-top: clamp(44px, 6vw, 60px);
  font-family: var(--serif); font-style: italic; font-weight: 420;
  font-size: clamp(21px, 2.6vw, 30px); line-height: 1.35; max-width: 30ch;
}
.flow-close .hl { color: var(--accent-dark); font-style: italic; }

/* ---------- 04 Coverage (datasheet) ---------- */
.datasheet { margin-top: clamp(38px, 5vw, 52px); border-top: 1px solid var(--hair-2); }
.datasheet-row {
  display: grid; grid-template-columns: 220px minmax(0,1fr);
  gap: clamp(16px, 3vw, 48px);
  padding: 17px 0; border-bottom: 1px solid var(--hair);
}
.datasheet-row dt { font-family: var(--mono); font-size: 11px; font-weight: 500; letter-spacing: .15em; text-transform: uppercase; color: var(--ink-60); padding-top: 4px; }
.datasheet-row dd { margin: 0; font-size: 16.5px; font-weight: 460; }
.coverage-note { margin-top: 28px; font-size: 15px; color: var(--ink-60); max-width: 620px; }

/* ---------- 05 Pilot ---------- */
.pilot-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: clamp(32px, 5vw, 80px); margin-top: clamp(40px, 5vw, 56px); align-items: start; }
.spec-card { border: 1px solid var(--ink); }
.spec-card .spec-head {
  padding: 14px 20px; border-bottom: 1px solid var(--ink);
  font-family: var(--mono); font-size: 10.5px; font-weight: 500; letter-spacing: .16em; text-transform: uppercase;
  display: flex; justify-content: space-between; gap: 12px; color: var(--ink);
}
.spec-card .spec-head .r { color: var(--accent); }
.spec-row { display: grid; grid-template-columns: 130px 1fr; gap: 16px; padding: 13px 20px; border-bottom: 1px solid var(--hair); }
.spec-row:last-child { border-bottom: 0; }
.spec-row dt { font-family: var(--mono); font-size: 10.5px; font-weight: 500; letter-spacing: .13em; color: var(--ink-60); text-transform: uppercase; padding-top: 3px; }
.spec-row dd { margin: 0; font-size: 15px; font-weight: 460; }
.spec-caption { margin-top: 14px; font-size: 13px; color: var(--ink-60); }
.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; }
.steps li { padding: 20px 0; border-top: 1px solid var(--hair); display: grid; grid-template-columns: 44px 1fr; gap: 16px; }
.steps .st-no { font-family: var(--mono); font-size: 11px; font-weight: 500; color: var(--accent); padding-top: 4px; }
.steps h3 { font-family: var(--sans); font-size: 16px; font-weight: 560; letter-spacing: -.005em; }
.steps p { margin-top: 6px; font-size: 15px; color: var(--ink-2); }

/* ---------- 06 Deliverables ---------- */
.deliv-grid { display: grid; grid-template-columns: 1fr 1fr; column-gap: clamp(28px, 4vw, 64px); margin-top: clamp(38px, 5vw, 52px); }
.deliv { display: flex; gap: 16px; align-items: baseline; padding: 15px 0; border-top: 1px solid var(--hair); }
.deliv .d-no { font-family: var(--mono); font-size: 10.5px; font-weight: 500; color: var(--accent); min-width: 26px; letter-spacing: .08em; }
.deliv .d-t { font-size: 16px; font-weight: 470; }
.deliv-close { margin-top: 30px; font-size: 15px; color: var(--ink-60); }

/* ---------- 07 Why BKU ---------- */
.why-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: clamp(32px, 5vw, 80px); margin-top: clamp(36px, 5vw, 52px); align-items: start; }
.why-copy p { font-size: 17px; color: var(--ink-2); max-width: 58ch; }
.why-copy p + p { margin-top: 16px; }
.cap-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--hair-2); }
.cap-list li {
  font-family: var(--mono); font-size: 11.5px; font-weight: 500; letter-spacing: .13em; text-transform: uppercase;
  color: var(--ink-2); padding: 13px 0; border-bottom: 1px solid var(--hair);
  display: flex; gap: 12px; align-items: baseline;
}
.cap-list li::before { content: ''; width: 6px; height: 6px; background: var(--accent-soft); transform: translateY(-1px); }
.aim {
  margin-top: clamp(40px, 5vw, 56px); border-top: 1px solid var(--hair); padding-top: 24px;
  font-family: var(--serif); font-style: italic; font-size: clamp(19px, 2.2vw, 24px); font-weight: 420;
  color: var(--ink); max-width: 40ch; line-height: 1.4;
}

/* ---------- 08 Data ethics ---------- */
.ethics-list { list-style: none; margin: clamp(36px, 5vw, 48px) 0 0; padding: 0; }
.ethics-list li { display: grid; grid-template-columns: 44px 1fr; gap: 18px; padding: 17px 0; border-top: 1px solid var(--hair); }
.ethics-list .e-no { font-family: var(--mono); font-size: 10.5px; font-weight: 500; color: var(--accent); padding-top: 4px; }
.ethics-list .e-t { font-size: 16.5px; font-weight: 480; }
.ethics-list .e-d { margin-top: 4px; font-size: 14.5px; color: var(--ink-60); }
.ethics-close { margin-top: 34px; font-family: var(--serif); font-style: italic; font-size: clamp(19px, 2.1vw, 24px); font-weight: 420; }

/* ---------- 09 Contact ---------- */
.contact { margin-top: var(--sec-gap); border-top: 1px solid var(--ink); }
.contact-inner { padding: clamp(64px, 8vw, 104px) 0 clamp(72px, 9vw, 112px); }
.contact-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(36px, 6vw, 96px); align-items: start; }
.contact h2 { font-size: clamp(34px, 4.4vw, 58px); line-height: 1.06; letter-spacing: -.015em; max-width: 14ch; }
.contact .lede { margin-top: 22px; font-size: 17px; color: var(--ink-2); max-width: 44ch; }
.contact-alt { margin-top: 34px; font-size: 15px; color: var(--ink-60); }
.contact-alt a { color: var(--accent); text-decoration: none; border-bottom: 1px solid currentColor; }
.contact-note { margin-top: 12px; font-size: 13.5px; color: var(--ink-60); }

.inquiry { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 20px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-family: var(--mono); font-size: 10.5px; font-weight: 500; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-60); }
.field label .req { color: var(--accent); }
.field input, .field select, .field textarea {
  appearance: none; -webkit-appearance: none;
  background: transparent; border: 1px solid var(--hair-2); border-radius: 0;
  padding: 13px 14px; font-family: var(--sans); font-size: 15.5px; color: var(--ink);
  width: 100%;
}
.field select { background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6'><path d='M0 0l5 6 5-6z' fill='%23575E66'/></svg>"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 34px; }
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--ink); }
.field input::placeholder, .field textarea::placeholder { color: #A9A294; }
.inquiry .submit-row { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: 18px; margin-top: 6px; }
.privacy-line { font-size: 13px; color: var(--ink-60); }
.privacy-line a { color: inherit; }
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.form-status { grid-column: 1 / -1; font-family: var(--mono); font-size: 12px; letter-spacing: .06em; color: var(--accent); min-height: 1em; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--hair); margin-top: 0; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 20px 48px; justify-content: space-between; align-items: baseline; padding: 30px 0 44px; }
.footer-brand { display: flex; align-items: baseline; gap: 12px; }
.footer-meta { font-family: var(--mono); font-size: 11px; letter-spacing: .08em; color: var(--ink-60); display: flex; flex-wrap: wrap; gap: 8px 22px; }
.footer-meta a { color: inherit; text-decoration: none; }
.footer-meta a:hover { color: var(--accent); }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- Responsive ---------- */
@media (max-width: 1020px) {
  .service { grid-template-columns: 48px minmax(0,1fr); }
  .service p { grid-column: 2; }
  .flow { flex-direction: column; }
  .flow-arrow { padding: 8px 0 8px 18px; justify-content: flex-start; }
  .flow-arrow .gl::before { content: '↓'; }
  .flow-arrow .gl { font-size: 13px; }
  .pilot-grid, .why-grid, .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 780px) {
  .site-nav {
    position: fixed; inset: 68px 0 auto 0; z-index: 55;
    flex-direction: column; align-items: flex-start; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--hair);
    padding: 8px var(--pad) 20px;
    display: none;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 13px 0; font-size: 16px; width: 100%; border-bottom: 1px solid var(--hair); }
  .site-nav a:last-child { border-bottom: 0; }
  .nav-pdf { border: 0; padding: 13px 0; }
  .nav-pdf:hover { background: transparent; color: var(--accent) !important; }
  .nav-toggle { display: block; }
  .sec-grid { grid-template-columns: 1fr; gap: 18px; }
  .sec-side { flex-direction: row; align-items: baseline; gap: 14px; }
  .behavior-list, .excerpt-grid, .deliv-grid { grid-template-columns: 1fr; }
  .hero-meta { grid-template-columns: 1fr; }
  .hero-meta > div { padding: 16px 0 0; }
  .hero-meta > div + div { padding-left: 0; border-left: 0; border-top: 1px solid var(--hair); margin-top: 16px; }
  .datasheet-row { grid-template-columns: 1fr; gap: 6px; padding: 14px 0; }
  .inquiry { grid-template-columns: 1fr; }
  .statement p { max-width: none; }
  .fig-frame { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .fig-frame svg { min-width: 860px; }
  .fig-caption { flex-direction: column; gap: 4px; }
}