/* exviusoffline.wiki — Taste Skill direction: One motif (seed 296474387).
   Motif: faceted Vision Crystal bevel (top-left and bottom-right chamfered prism corners).
   Type: Plus Jakarta Sans (display/headings/controls) + Source Serif 4 (body).
   Palette: Crystal-cobalt & deep-navy on crisp alabaster (#f6f8fc ground, #eaeff7/#dbe3f0/#c8d4e8 surfaces, #0b2247 AAA ink, #102e5e stage). */
:root {
  --bg: #f6f8fc;
  --surface: #eaeff7;
  --surface-2: #dbe3f0;
  --surface-3: #c8d4e8;
  --ink: #0b2247;
  --muted: #234170;
  --accent: #102e5e;
  --accent-hover: #081b3b;
  --accent-ink: #f6f8fc;
  --field: #102e5e;
  --field-surface: #173d7a;
  --field-surface-2: #1f4d96;
  --field-ink: #f6f8fc;
  --field-muted: #c8daf5;
  --ok: #0a6b48;
  --warn: #8a5600;
  --bad: #9e2222;
  --display: "Plus Jakarta Sans", "Helvetica Neue", Arial, sans-serif;
  --serif: "Source Serif 4", Georgia, Cambria, serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; /* code and pre only. taste-skill-ignore */
  --step-small: 0.875rem;
  --step-body: clamp(1.0625rem, 1rem + 0.2vw, 1.1875rem);
  --step-lead: clamp(1.22rem, 1.1rem + 0.45vw, 1.45rem);
  --step-head: clamp(1.65rem, 1.15rem + 1.8vw, 2.55rem);
  --step-display: clamp(2.05rem, 4.1vw, 3.6rem);
  --cut-lg: polygon(44px 0, 100% 0, 100% calc(100% - 44px), calc(100% - 44px) 100%, 0 100%, 0 44px);
  --cut-md: polygon(24px 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%, 0 24px);
  --cut-sm: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
  --margin: clamp(20px, 4vw, 44px);
  --wrap: 1320px;
  --gap: clamp(24px, 3.4vw, 52px);
  --section: clamp(80px, 8vw, 124px);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --t-press: 140ms;
  --t-hover: 200ms;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 24px; background: var(--bg); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 var(--step-body)/1.55 var(--serif);
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img, svg { display: block; max-width: 100%; height: auto; }
a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--muted);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
  transition: color var(--t-hover), text-decoration-color var(--t-hover);
}
a:hover { text-decoration-color: var(--ink); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
b, strong { font-weight: 600; color: var(--ink); }
code, kbd, pre { font-family: var(--mono); }
code, kbd {
  font-size: 1rem;
  background: var(--surface);
  color: var(--ink);
  padding: 0.08em 0.34em;
  overflow-wrap: anywhere;
}
pre {
  background: var(--surface);
  color: var(--ink);
  padding: 18px 20px;
  overflow-x: auto;
  font-size: var(--step-small);
  line-height: 1.6;
  margin: 0 0 1.2em;
  clip-path: var(--cut-sm);
}
pre code { background: none; padding: 0; }

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.032em;
  line-height: 0.98;
  margin: 0;
  color: var(--ink);
  text-wrap: balance;
}
h1 { font-size: var(--step-display); line-height: 0.95; }
h2 { font-size: var(--step-head); line-height: 1.04; margin: 0 0 0.55em; }
h3 { font-size: var(--step-lead); line-height: 1.15; letter-spacing: -0.02em; margin: 1.35em 0 0.4em; }
h4 { font-size: var(--step-body); line-height: 1.25; letter-spacing: -0.015em; margin: 1.15em 0 0.3em; }

p { margin: 0 0 1em; max-width: 65ch; text-wrap: pretty; }
ul, ol { padding-left: 1.3em; margin: 0 0 1.2em; max-width: 65ch; }
li { margin: 0.38em 0; }
li::marker { color: var(--accent); font-family: var(--display); font-weight: 700; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: var(--margin); }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 12px; top: 12px; z-index: 99; background: var(--ink); color: var(--bg); padding: 8px 14px; font-family: var(--display); }
.lead { font-size: var(--step-lead); line-height: 1.42; max-width: 42ch; }
.fine, .sub { font-size: 1rem; color: var(--muted); }
.note { background: var(--surface); padding: 18px 22px; max-width: 65ch; clip-path: var(--cut-sm); margin: 0 0 1.2em; }

/* Primary & secondary buttons: flat fill, faceted crystal motif */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 24px;
  background: var(--accent);
  color: var(--accent-ink);
  font: 700 var(--step-body)/1.15 var(--display);
  letter-spacing: -0.015em;
  text-decoration: none;
  border: 0;
  clip-path: var(--cut-sm);
  cursor: pointer;
  transition: background-color var(--t-hover), transform var(--t-press) var(--ease-out);
  text-align: center;
}
.btn:hover { background: var(--accent-hover); color: var(--accent-ink); transform: translateY(-2px); }
.btn:active { transform: translateY(0) scale(0.98); }
.btn--ghost { background: var(--surface-2); color: var(--ink); }
.btn--ghost:hover { background: var(--surface-3); color: var(--ink); }
.btn--paper { background: var(--field-ink); color: var(--field); }
.btn--paper:hover { background: var(--surface); color: var(--field); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 0; }

/* Navigation: plain bar, wordmark left, links right */
.nav .wrap {
  display: flex;
  align-items: center;
  gap: 12px 24px;
  min-height: 76px;
  flex-wrap: wrap;
  padding-block: 12px;
}
.mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font: 700 var(--step-lead)/1 var(--display);
  letter-spacing: -0.03em;
}
.mark svg { flex: none; }
.nav__links { display: flex; flex-wrap: wrap; gap: 4px 18px; margin-left: auto; }
.nav__links a, .nav__lang a {
  font-family: var(--display);
  font-weight: 700;
  font-size: var(--step-small);
  color: var(--muted);
  text-decoration: none;
  padding: 6px 0;
  transition: color var(--t-hover);
}
.nav__links a:hover, .nav__lang a:hover { color: var(--ink); }
.nav__links a[aria-current] {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 3px;
  text-underline-offset: 8px;
}
.nav__lang { display: flex; gap: 12px; }
.nav__lang a[aria-current] { color: var(--ink); }

/* Hero: Fragment on a shaped stage */
.hero { padding: clamp(28px, 4vw, 60px) 0 0; }
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  gap: var(--gap);
  align-items: start;
}
.hero h1 { margin: 0 0 24px; max-width: 15ch; }
.hero .lead { max-width: 40ch; }
.status { list-style: none; padding: 0; margin: 32px 0 0; max-width: 34rem; }
.status li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  margin: 0 0 6px;
  padding: 10px 14px;
  background: var(--surface);
  clip-path: var(--cut-sm);
}
.status li > b { font-family: var(--display); font-size: var(--step-small); color: var(--muted); }
.status .tag { font-family: var(--display); font-weight: 700; font-size: var(--step-small); font-variant-numeric: tabular-nums; margin-left: auto; }
.status .when { color: var(--muted); font-size: var(--step-small); text-align: right; }

/* Shaped stage carrying the live working picker (data-ui) */
.stage {
  background: var(--field);
  color: var(--field-ink);
  clip-path: var(--cut-lg);
  padding: clamp(28px, 3.4vw, 44px);
}
.stage h2, .stage h3, .stage b, .stage strong { color: var(--field-ink); }
.stage a { color: var(--field-ink); text-decoration-color: var(--field-muted); }
.stage a.btn--paper, .band a.btn--paper, .band--box a.btn--paper { color: var(--field); text-decoration: none; }
.stage code { background: var(--field-surface); color: var(--field-ink); }
.tool h2 { font-size: var(--step-lead); margin-bottom: 8px; }
.tool .sub { color: var(--field-muted); margin-bottom: 16px; }
.seg { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.seg button {
  font: 700 var(--step-small)/1.2 var(--display);
  color: var(--field-ink);
  background: var(--field-surface);
  border: 0;
  padding: 12px 12px;
  clip-path: var(--cut-sm);
  cursor: pointer;
  text-align: left;
  transition: background-color var(--t-hover), transform var(--t-press) var(--ease-out);
}
.seg button small { display: block; font-weight: 400; font-family: var(--serif); font-size: var(--step-small); color: var(--field-muted); margin-top: 3px; }
.seg button:hover { background: var(--field-surface-2); }
.seg button:active { transform: scale(0.97); }
.seg button[aria-pressed="true"] { background: var(--field-ink); color: var(--field); }
.seg button[aria-pressed="true"] small { color: var(--muted); }
.picks { margin: 16px 0 10px; display: grid; gap: 10px; }
.pick {
  background: var(--field-surface);
  padding: 16px 18px;
  clip-path: var(--cut-sm);
  animation: pick-in 320ms var(--ease-out) both;
}
.pick h3 { margin: 0 0 6px; font-size: var(--step-lead); color: var(--field-ink); }
.pick p { font-size: var(--step-body); margin: 0 0 8px; color: var(--field-ink); }
.pick .meta { font-size: var(--step-small); color: var(--field-muted); overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.pick .row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; align-items: center; }
.copy {
  font: 700 var(--step-small)/1 var(--display);
  color: var(--field-ink);
  background: var(--field-surface-2);
  border: 0;
  min-height: 44px;
  padding: 0 16px;
  clip-path: var(--cut-sm);
  cursor: pointer;
  transition: background-color var(--t-hover), transform var(--t-press) var(--ease-out);
}
.copy:hover { background: var(--field-ink); color: var(--field); }
.copy:active { transform: scale(0.97); }
@keyframes pick-in { from { opacity: 0; transform: translateY(10px); } }

/* Signature Shutter image + slow crossfade */
.circuit { position: relative; margin: clamp(44px, 5vw, 84px) 0 0; }
.circuit__frame {
  position: relative;
  height: clamp(260px, 38vw, 540px);
  overflow: hidden;
  background: var(--surface);
  clip-path: var(--cut-lg);
  animation: shutter-open 1100ms var(--ease-out) both;
}
@keyframes shutter-open {
  from { clip-path: polygon(0 0, 0 0, 0 100%, 0 100%, 0 100%, 0 44px); }
  to { clip-path: polygon(44px 0, 100% 0, 100% calc(100% - 44px), calc(100% - 44px) 100%, 0 100%, 0 44px); }
}
.circuit__frame img {
  position: absolute;
  inset: -6% 0;
  width: 100%;
  height: 112%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.06);
  transition: opacity 1500ms ease, transform 1100ms var(--ease-out);
  will-change: transform, opacity;
}
.circuit__frame img.is-on { opacity: 1; transform: scale(1.02); }
.circuit figcaption, .ph figcaption { color: var(--muted); font-size: var(--step-small); margin-top: 10px; }
.ph { margin: 0; }
.ph__frame { overflow: hidden; background: var(--surface); clip-path: var(--cut-md); }
.ph__frame img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.06); will-change: transform; }
.ph--light .ph__frame { background: #ffffff; }
.ph--light .ph__frame img { object-fit: contain; transform: none; padding: 7%; }

/* Full-width inverted deep-navy band for WebCrypto SHA-256 Verifier */
.band {
  background: var(--field);
  color: var(--field-ink);
  clip-path: var(--cut-lg);
  padding: clamp(64px, 8vw, 120px) 0;
  margin-top: var(--section);
}
.band h2, .band h3, .band b, .band strong { color: var(--field-ink); }
.band .sub, .band .fine { color: var(--field-muted); }
.band code { background: var(--field-surface); color: var(--field-ink); }
.band a { color: var(--field-ink); text-decoration-color: var(--field-muted); }
.checker { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--gap); align-items: start; }
.drop {
  display: grid;
  place-items: center;
  text-align: center;
  gap: 6px;
  min-height: 196px;
  padding: 24px;
  background: var(--field-surface);
  border: 2px dashed var(--field-muted); /* drop zone inside data-ui checker. taste-skill-ignore */
  clip-path: var(--cut-md);
  cursor: pointer;
  transition: background-color var(--t-hover), transform var(--t-press) var(--ease-out);
}
.drop b { font: 700 var(--step-lead)/1.15 var(--display); color: var(--field-ink); }
.drop span { color: var(--field-muted); font-size: var(--step-small); }
.drop input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.drop:hover, .drop.is-over { background: var(--field-surface-2); }
.drop:active { transform: scale(0.99); }
.paste { display: flex; gap: 8px; margin-top: 10px; }
.paste input {
  flex: 1;
  min-width: 0;
  min-height: 50px;
  font: 400 var(--step-small) var(--mono);
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--surface-3); /* form field. taste-skill-ignore */
  padding: 0 14px;
}
.result {
  margin-top: 12px;
  padding: 16px 18px;
  background: var(--field-surface);
  color: var(--field-ink);
  font-size: var(--step-body);
  clip-path: var(--cut-sm);
  overflow-wrap: anywhere;
}
.result .big { display: block; font: 700 var(--step-lead)/1.2 var(--display); margin-bottom: 4px; }
.result.ok { background: #084c35; }
.result.bad { background: #6b1818; }
.bar { height: 6px; background: var(--field-surface); margin-top: 8px; }
.bar i { display: block; height: 100%; width: 0; background: var(--field-ink); transition: width 200ms; }

/* Band inside white inner pages (/download/) */
.band--box {
  background: var(--field);
  color: var(--field-ink);
  clip-path: var(--cut-md);
  padding: clamp(22px, 2.8vw, 34px);
  margin: 0 0 1.8em;
}
.band--box h2, .band--box h3, .band--box h4, .band--box b, .band--box strong { color: var(--field-ink); }
.band--box a { color: var(--field-ink); text-decoration-color: var(--field-muted); }
.band--box a.btn--paper { color: var(--field); text-decoration: none; }
.band--box .sub { color: var(--field-muted); }
.band--box code { background: var(--field-surface); color: var(--field-ink); }
.band--box .checker { grid-template-columns: 1fr; gap: 16px; }

/* Sections & Blueprints */
.sec { padding: var(--section) 0 0; }
.sec--surface { background: var(--surface); padding-block: var(--section); margin-top: var(--section); }
.sec--surface + .sec { padding-top: var(--section); }
.split { display: grid; gap: var(--gap); align-items: start; }
.split--75 { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
.split--57 { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.split--66 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.split > * { min-width: 0; }
.split .ph__frame { aspect-ratio: 4 / 3; }
.sticky-col { position: sticky; top: 32px; }

/* Blueprint 1: Statement with inline crystal-bevel thumbnails */
.statement {
  font-family: var(--serif);
  font-size: var(--step-lead);
  line-height: 1.38;
  font-weight: 600;
  max-width: 48ch;
  margin: 0 0 1.4em;
}
.thumb {
  display: inline-block;
  width: 1.45em;
  height: 0.9em;
  vertical-align: -0.1em;
  margin: 0 0.14em;
  overflow: hidden;
  background: var(--surface-2);
  clip-path: polygon(5px 0, 100% 0, 100% calc(100% - 5px), calc(100% - 5px) 100%, 0 100%, 0 5px);
}
.thumb img { width: 100%; height: 100%; object-fit: cover; }
.thumb--light { background: #ffffff; }
.thumb--light img { object-fit: contain; }

/* Blueprint 2: Sentences with switches (interactive capability bands, data-ui) */
.switches { display: grid; gap: 0; margin-top: 24px; }
.sw-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
  padding: 20px 0;
  background: transparent;
  transition: background-color var(--t-hover), padding var(--t-hover), color var(--t-hover);
}
.sw-row h3 { margin: 0; font-size: var(--step-lead); color: var(--muted); transition: color var(--t-hover); }
.sw-row .sw-detail { display: none; margin: 8px 0 0; font-size: var(--step-body); max-width: 60ch; }
.sw-row.is-on { background: var(--surface); padding: 20px 22px; clip-path: var(--cut-sm); margin-block: 4px; }
.sw-row.is-on h3 { color: var(--ink); }
.sw-row.is-on .sw-detail { display: block; color: var(--ink); }
.sw-toggle {
  position: relative;
  width: 58px;
  height: 32px;
  background: var(--surface-3);
  border: 0;
  clip-path: var(--cut-sm);
  cursor: pointer;
  padding: 4px;
  transition: background-color var(--t-hover), transform var(--t-press) var(--ease-out);
}
.sw-toggle i {
  display: block;
  width: 24px;
  height: 24px;
  background: var(--bg);
  transition: transform var(--t-hover) var(--ease-out);
}
.sw-toggle[aria-checked="true"] { background: var(--accent); }
.sw-toggle[aria-checked="true"] i { transform: translateX(26px); }
.sw-toggle:active { transform: scale(0.95); }

/* Blueprint 3: Filled bar rows (<details> stack) */
.bars { display: grid; gap: 8px; }
.bar-item { background: var(--surface); clip-path: var(--cut-sm); }
.bar-item summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 56px 18px 22px;
  font: 700 var(--step-body)/1.25 var(--display);
  position: relative;
}
.bar-item summary::-webkit-details-marker { display: none; }
.bar-item summary::before, .bar-item summary::after {
  content: "";
  position: absolute;
  right: 22px;
  top: 50%;
  width: 14px;
  height: 3px;
  margin-top: -1.5px;
  background: currentColor;
  transition: transform var(--t-hover) var(--ease-out);
}
.bar-item summary::after { transform: rotate(90deg); }
.bar-item[open] { background: var(--surface-2); }
.bar-item[open] summary::after { transform: rotate(0deg); }
.bar-item__body { padding: 0 22px 20px; }
.bar-kv { display: flex; justify-content: space-between; gap: 16px; padding: 8px 0; font-variant-numeric: tabular-nums; }
.bar-kv span:last-child { font-weight: 600; text-align: right; }

/* Blueprint 4: Large marks / metrics on filled tiles */
.tiles { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.tile {
  background: var(--surface);
  padding: 24px;
  min-height: 168px;
  clip-path: var(--cut-md);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.tile--lead {
  grid-column: span 2;
  background: var(--field);
  color: var(--field-ink);
}
.tile--lead h2, .tile--lead p, .tile--lead b { color: var(--field-ink); }
.tile__big { font: 700 var(--step-head)/1 var(--display); letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.tile p { margin: 8px 0 0; font-size: var(--step-small); color: var(--muted); }
.tile--lead p { color: var(--field-muted); font-size: var(--step-body); }

/* Key-value definition rows & tables */
.rows { margin: 0; max-width: 48rem; }
.rows > div { display: grid; grid-template-columns: 11.5rem minmax(0, 1fr); gap: 6px 24px; padding: 14px 16px; }
.rows > div:nth-child(odd) { background: var(--surface); clip-path: var(--cut-sm); }
.rows dt { font-family: var(--display); font-weight: 700; font-size: var(--step-small); }
.rows dd { margin: 0; }

.tw { overflow-x: auto; margin: 0 0 1.4em; max-width: 100%; }
table { border-collapse: collapse; width: 100%; font-size: var(--step-body); font-variant-numeric: tabular-nums; }
th, td { text-align: left; vertical-align: top; padding: 12px 14px; border-bottom: 1px solid var(--surface-3); } /* real table rows. taste-skill-ignore */
th { font-family: var(--display); font-weight: 700; font-size: var(--step-small); color: var(--muted); }
td.num { text-align: right; white-space: nowrap; }
td.hash code, .hash { font-size: 1rem; overflow-wrap: anywhere; word-break: break-all; }
.yes { color: var(--ok); font-weight: 600; white-space: nowrap; }
.no { color: var(--bad); font-weight: 600; white-space: nowrap; }
.part { color: var(--warn); font-weight: 600; white-space: nowrap; }

/* Inner pages */
.phead { padding: clamp(28px, 4vw, 60px) 0 0; }
.phead__grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--gap); align-items: end; }
.phead h1 { margin: 0 0 22px; }
.phead .ph__frame { aspect-ratio: 4 / 3; }
.phead .ph figcaption { display: none; }
.facts { list-style: none; padding: 0; margin: 24px 0 0; display: flex; flex-wrap: wrap; gap: 8px 16px; max-width: none; }
.facts li { margin: 0; padding: 6px 12px; background: var(--surface); clip-path: var(--cut-sm); font-size: var(--step-small); color: var(--muted); }
.article { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: var(--gap); padding-top: clamp(72px, 7vw, 112px); }
.body { min-width: 0; }
.body > h2 { margin-top: 2.1em; max-width: 24ch; }
.body > h2:first-child { margin-top: 0; }
.side { min-width: 0; }
.side .sticky { position: sticky; top: 24px; display: grid; gap: 14px; }
.side__box { background: var(--surface); padding: 20px 22px; clip-path: var(--cut-md); }
.side__box h2 { font-size: var(--step-lead); margin: 0 0 10px; }
.side__box ul { list-style: none; padding: 0; margin: 0; }
.side__box li { margin: 0 0 7px; font-size: var(--step-small); }
.side__box dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 6px 12px; font-size: var(--step-small); }
.side__box dt { color: var(--muted); font-family: var(--display); font-weight: 700; }
.side__box dd { margin: 0; text-align: right; }

.rel { background: var(--surface); padding: 6px 20px; margin: 0 0 10px; clip-path: var(--cut-sm); }
.rel > summary { cursor: pointer; padding: 14px 0; font-family: var(--display); font-weight: 700; list-style: none; display: flex; gap: 10px; flex-wrap: wrap; align-items: baseline; }
.rel > summary::-webkit-details-marker { display: none; }
.rel > summary small { font-family: var(--serif); font-weight: 400; color: var(--muted); font-size: var(--step-small); }
.rel:not([open]) > .notes { display: none; }
.rel .notes { padding: 4px 0 10px; }

.strip { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr); gap: 12px; margin-top: clamp(68px, 7vw, 116px); }
.strip--top { margin-top: clamp(44px, 5vw, 76px); }
.strip .ph__frame { aspect-ratio: auto; height: clamp(190px, 21vw, 310px); }

/* Amazon hardware box */
.amz-quick { background: var(--surface); padding: clamp(22px, 3vw, 32px); clip-path: var(--cut-md); margin: 2em 0; }
.amz-quick h2 { margin-top: 0; }

/* Blueprint 5: FAQ — Accordion of filled tiles */
.faq { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: var(--gap); padding: var(--section) 0 0; align-items: start; }
.faq > h2 { position: sticky; top: 32px; }
.faq__list { display: grid; gap: 8px; }
.qa { background: var(--surface); clip-path: var(--cut-sm); transition: background-color var(--t-hover); }
.qa:hover { background: var(--surface-2); }
.qa summary {
  cursor: pointer;
  list-style: none;
  padding: 22px 60px 22px 24px;
  font: 700 var(--step-body)/1.3 var(--display);
  position: relative;
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary::before, .qa summary::after {
  content: "";
  position: absolute;
  right: 24px;
  top: 50%;
  width: 16px;
  height: 3px;
  margin-top: -1.5px;
  background: currentColor;
  transition: transform var(--t-hover) var(--ease-out);
}
.qa summary::after { transform: rotate(90deg); }
.qa[open] { background: var(--accent); color: var(--accent-ink); }
.qa[open] summary { color: var(--accent-ink); }
.qa[open] summary::after { transform: rotate(0deg); }
.qa > div { padding: 0 24px 22px; }
.qa > div p { max-width: 56ch; margin: 0; color: var(--accent-ink); }
.qa[open] a { color: var(--accent-ink); text-decoration-color: var(--field-muted); }
.qa[open] code { background: var(--field-surface); color: var(--accent-ink); }

/* Adsterra 3-slot layout */
.ad { margin: 56px 0 84px; text-align: center; }
.ad > span { display: block; font-size: var(--step-small); color: var(--muted); margin-bottom: 8px; }
.ad-l { display: flex; flex-direction: column; align-items: center; margin: 36px 0 0; overflow: hidden; }
.ad-wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: var(--margin); }

/* Blueprint 6: Footer — The mark, built large from crystal-bevel blocks */
.foot {
  background: var(--surface);
  margin-top: var(--section);
  padding: clamp(56px, 6vw, 84px) 0 40px;
  color: var(--muted);
}
.foot__mark {
  display: grid;
  grid-template-columns: repeat(10, minmax(0, 1fr));
  gap: 6px;
  align-items: end;
  height: clamp(78px, 13vw, 168px);
  text-decoration: none;
  margin-bottom: clamp(40px, 5vw, 68px);
}
.foot__blk {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 10px 4px;
  background: var(--field);
  color: var(--field-ink);
  font: 700 var(--step-head)/0.9 var(--display);
  clip-path: var(--cut-sm);
  height: var(--h, 100%);
  transition: transform var(--t-hover) var(--ease-out), background-color var(--t-hover);
}
.foot__mark:hover .foot__blk { background: var(--accent-hover); }
.foot__cols { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr)); gap: var(--gap); margin-bottom: 44px; }
.foot__cols p { max-width: 40ch; font-size: 1rem; }
.foot h2 { font-size: var(--step-body); margin: 0 0 12px; color: var(--ink); }
.foot ul { list-style: none; padding: 0; margin: 0; }
.foot li { margin: 0 0 8px; font-size: var(--step-small); }
.foot li a { text-decoration: none; color: var(--ink); }
.foot li a:hover { text-decoration: underline; }
.foot__legal { background: var(--bg); padding: 24px 28px; clip-path: var(--cut-md); font-size: 1rem; }
.foot__legal p { max-width: 68ch; margin: 0 0 0.7em; }
.foot__legal p:last-child { margin: 0; }

/* Motion layer: hero staggered entrance + scroll reveal (.rv) */
@keyframes rise { from { opacity: 0; transform: translateY(22px); } }
.hero h1, .phead h1 { animation: rise 740ms var(--ease-out) both; }
.hero .lead, .phead .lead { animation: rise 740ms 85ms var(--ease-out) both; }
.hero .actions, .phead .actions { animation: rise 740ms 165ms var(--ease-out) both; }
.hero .status, .phead .facts { animation: rise 740ms 245ms var(--ease-out) both; }
.hero .stage, .phead .ph { animation: rise 860ms 190ms var(--ease-out) both; }
.rv { opacity: 0; transform: translateY(22px); transition: opacity 680ms var(--ease-out), transform 680ms var(--ease-out); transition-delay: var(--d, 0ms); }
.rv.in { opacity: 1; transform: none; }

@media (max-width: 1020px) {
  .hero__grid, .phead__grid, .checker, .split--75, .split--57, .split--66, .faq, .article { grid-template-columns: minmax(0, 1fr); }
  .sticky-col, .faq > h2, .side .sticky { position: static; }
  .tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tile--lead { grid-column: span 2; }
  .foot__cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split--57 > .sticky-col { order: 2; }
  .phead h1, .faq > h2 { max-width: none; }
}

@media (max-width: 640px) {
  .nav .wrap { gap: 8px 14px; min-height: 0; padding-block: 12px 8px; }
  .nav__links { margin-left: 0; order: 3; width: 100%; gap: 2px 14px; }
  .nav__lang { margin-left: auto; }
  .actions .btn { flex: 1 1 100%; }
  .seg { grid-template-columns: 1fr; }
  .status .when { display: none; }
  .rows > div, .paste, .bar-kv { grid-template-columns: 1fr; flex-direction: column; }
  .strip { grid-template-columns: 1fr; }
  .foot__cols { grid-template-columns: 1fr; }
  .foot__mark { grid-template-columns: repeat(10, minmax(0, 1fr)); gap: 3px; height: 64px; }
  .foot__blk { font-size: var(--step-lead); padding: 6px 2px; }
  .amz-quick thead, .tw thead { display: none; }
  .amz-quick table, .amz-quick tbody, .amz-quick tr, .amz-quick td,
  .tw table, .tw tbody, .tw tr, .tw td { display: block; width: 100%; }
  .amz-quick tr, .tw tr { padding: 12px 0; border-bottom: 1px solid var(--surface-3); } /* real table rows. taste-skill-ignore */
  .amz-quick td, .tw td { padding: 3px 0; border: 0; }
  .tw td.num, .yes, .no, .part { text-align: left; white-space: normal; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition-duration: 0.01ms !important; }
  .rv { opacity: 1 !important; transform: none !important; }
  .circuit__frame img, .ph__frame img { transform: none !important; }
}