/* "Wandtext": black print on a near-white wall, thin frames,
   one signal colour that is used only for what is missing. */

@font-face { font-family: "Archivo"; font-style: normal; font-weight: 400; font-display: swap; src: url("fonts/archivo-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "Archivo"; font-style: normal; font-weight: 600; font-display: swap; src: url("fonts/archivo-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "Archivo"; font-style: normal; font-weight: 800; font-display: swap; src: url("fonts/archivo-latin-800-normal.woff2") format("woff2"); }
@font-face { font-family: "Archivo Narrow"; font-style: normal; font-weight: 600; font-display: swap; src: url("fonts/archivo-narrow-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "DM Mono"; font-style: normal; font-weight: 400; font-display: swap; src: url("fonts/dm-mono-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "DM Mono"; font-style: normal; font-weight: 500; font-display: swap; src: url("fonts/dm-mono-latin-500-normal.woff2") format("woff2"); }

:root {
  --wall: #f6f6f2;
  --card: #ffffff;
  --inset: #ecece6;
  --ink: #111111;
  --muted: #55554f;
  --signal: #c4005c;
  --signal-soft: #fbe4ee;
  --signal-on-ink: #ff3d94;
  --hair: #cfcfc7;
  --sans: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --narrow: "Archivo Narrow", "Arial Narrow", "Archivo", Arial, sans-serif;
  --mono: "DM Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
  --gutter: clamp(18px, 4vw, 56px);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--wall);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
h1, h2, h3 { font-weight: 800; line-height: 1.04; letter-spacing: -0.02em; overflow-wrap: break-word; hyphens: auto; }
p, li, dd, dt, td, th { overflow-wrap: break-word; }
a { color: inherit; text-underline-offset: 0.2em; text-decoration-thickness: 1.5px; }
a:hover { color: var(--signal); }
:focus-visible { outline: 3px solid var(--signal); outline-offset: 3px; }
[id] { scroll-margin-top: 84px; }

.wrap { width: 100%; max-width: 1336px; margin: 0 auto; padding: 0 var(--gutter); }
.skip { position: absolute; left: -9999px; top: 0; background: var(--ink); color: #fff; padding: 10px 14px; z-index: 20; }
.skip:focus { left: 8px; top: 8px; }

.mono { font-family: var(--mono); font-size: 13px; line-height: 1.5; color: var(--muted); }
.label, .eyebrow {
  font-family: var(--narrow);
  font-weight: 600;
  font-size: 13px;
  line-height: 1.3;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.eyebrow { color: var(--muted); display: flex; align-items: center; gap: 10px; }
.tag {
  display: inline-block;
  vertical-align: 0.2em;
  margin-left: 8px;
  border: 1.5px solid var(--ink);
  padding: 2px 7px 1px;
  font-family: var(--narrow);
  font-weight: 600;
  font-size: 12px;
  line-height: 1.3;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.plate { background: var(--card); border: 1.5px solid var(--ink); }

/* The three marks: filled, half-filled, dotted. They differ by shape, not only by colour. */
.mk { display: inline-block; flex: none; width: 0.8em; height: 0.8em; border: 0.14em solid var(--ink); vertical-align: -0.06em; }
.mk--belegt { background: var(--ink); }
.mk--vermutet { background: linear-gradient(90deg, var(--ink) 50%, transparent 50%); }
.mk--fehlt { border-style: dotted; border-color: var(--signal); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  padding: 12px 22px;
  background: var(--ink);
  color: #fff;
  border: 1.5px solid var(--ink);
  font-weight: 600;
  font-size: 17px;
  line-height: 1.2;
  text-decoration: none;
}
a.btn:hover { background: var(--signal); border-color: var(--signal); color: #fff; }
.btn--small { min-height: 40px; padding: 8px 14px; font-family: var(--narrow); font-size: 15px; white-space: nowrap; }
.btn--pending { background: transparent; color: var(--ink); border-style: dashed; cursor: default; }
.btn--invert { background: #fff; color: var(--ink); border-color: #fff; }
.btn--invert.btn--pending { background: transparent; color: #fff; border-color: #fff; }
.btn--invert .mk--fehlt { border-color: var(--signal-on-ink); }
.more { font-weight: 600; }

/* Header */
.top { position: sticky; top: 0; z-index: 10; background: var(--wall); border-bottom: 1.5px solid var(--ink); }
.top__in { display: flex; align-items: center; gap: 20px; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 800; font-size: 17px; letter-spacing: -0.01em; white-space: nowrap; min-height: 44px; }
.brand:hover { color: var(--ink); }
.brand img { width: 46px; height: 20px; }
.top__nav { display: flex; align-items: center; gap: 26px; margin-left: auto; }
.top__nav a {
  font-family: var(--narrow);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 12px 0;
  border-bottom: 2px solid transparent;
}
.top__nav a:hover, .top__nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--ink); }

/* Hero */
.hero { padding: clamp(36px, 6vw, 84px) 0 0; }
.hero__grid { display: grid; grid-template-columns: minmax(0, 1.75fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 64px); align-items: end; }
.hero h1 { font-size: clamp(42px, 7.6vw, 116px); line-height: 0.94; letter-spacing: -0.035em; margin-top: 22px; hyphens: manual; }
.gapword {
  display: inline-block;
  color: var(--signal);
  background: var(--signal-soft);
  border: 0.045em dotted var(--signal);
  padding: 0 0.14em 0.04em;
  margin-left: -0.02em;
}
.hero__plate { padding: clamp(20px, 2.2vw, 30px); }
.hero__lead { font-size: 19px; line-height: 1.45; }
.hero__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 22px; margin-top: 22px; }
.hero__facts { display: flex; flex-wrap: wrap; gap: 4px 0; margin-top: 22px; padding-top: 14px; border-top: 1px solid var(--hair); font-family: var(--mono); font-size: 13px; color: var(--muted); }
.hero__facts li:not(:last-child)::after { content: "·"; margin: 0 9px; }

.states { margin-top: clamp(40px, 6vw, 84px); border-top: 4px solid var(--ink); }
.states__label { font-family: var(--narrow); font-weight: 600; font-size: 13px; letter-spacing: 0.16em; text-transform: uppercase; padding: 12px 0; }
.states__row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: 1.5px solid var(--ink); background: var(--card); }
.state { position: relative; padding: clamp(18px, 2.4vw, 34px); }
.state + .state { border-left: 1.5px solid var(--ink); }
.state__no { position: absolute; top: clamp(16px, 2vw, 28px); right: clamp(16px, 2vw, 28px); font-family: var(--mono); font-size: 13px; color: var(--muted); }
.state__mark { display: block; width: clamp(72px, 10vw, 148px); height: clamp(72px, 10vw, 148px); border-width: clamp(8px, 1vw, 14px); }
.state h2 { font-size: clamp(30px, 4.4vw, 64px); margin-top: clamp(16px, 2vw, 28px); letter-spacing: -0.03em; }
.state p { margin-top: 10px; color: var(--muted); max-width: 34ch; }
.state--fehlt { background: var(--signal-soft); }
.state--fehlt h2 { color: var(--signal); }
.state--fehlt p { color: var(--ink); }
.states__note { font-family: var(--mono); font-size: 13px; color: var(--muted); padding: 12px 0 0; }

.audience { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 3fr); gap: 12px 32px; margin-top: clamp(36px, 5vw, 64px); padding: 20px 0 clamp(44px, 6vw, 84px); border-top: 1.5px solid var(--ink); }
.audience__label { font-family: var(--narrow); font-weight: 600; font-size: 13px; letter-spacing: 0.16em; text-transform: uppercase; }
.audience__text { font-size: clamp(18px, 1.7vw, 22px); line-height: 1.45; max-width: 60ch; }

/* Sections */
.sec { padding: clamp(52px, 7vw, 108px) 0; border-top: 1.5px solid var(--ink); }
.sec__head { max-width: 860px; }
.sec h2, .limits h2, .closing h2 { font-size: clamp(32px, 4.6vw, 64px); margin-top: 16px; letter-spacing: -0.03em; }
.sec__lead { margin-top: 18px; font-size: clamp(18px, 1.5vw, 20px); line-height: 1.5; color: var(--muted); max-width: 62ch; }

/* Chain */
.chainsec { background: var(--card); }
.chain { margin-top: clamp(30px, 4vw, 56px); }
.chain__cap { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 10px 24px; padding-bottom: 16px; }
.chain__work { font-weight: 800; font-size: clamp(20px, 2vw, 26px); letter-spacing: -0.01em; line-height: 1.2; }
.chain__row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.25fr) minmax(0, 1.25fr) minmax(0, 0.6fr); }
.seg { position: relative; padding-top: 34px; min-width: 0; }
.seg__rail { position: absolute; left: 0; right: 0; top: 11px; border-top: 4px solid var(--ink); }
.seg__rail .mk { position: absolute; left: 0; top: -15px; width: 26px; height: 26px; border-width: 3px; font-size: 26px; background-color: var(--card); }
.seg__rail .mk--belegt { background: var(--ink); }
.seg__rail .mk--vermutet { background: linear-gradient(90deg, var(--ink) 50%, var(--card) 50%); }
.seg--vermutet .seg__rail { border-top-style: dashed; }
.seg--fehlt .seg__rail { border-top: 0; }
.seg--more .seg__rail { border-top-style: solid; border-image: linear-gradient(90deg, var(--ink), transparent) 1; }
.seg__body { padding: 14px 18px 0 0; }
.seg__years { font-family: var(--mono); font-weight: 500; font-size: 15px; }
.seg__kind { margin-top: 8px; font-family: var(--narrow); font-weight: 600; font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.seg__name { font-weight: 600; font-size: 19px; line-height: 1.25; margin-top: 2px; hyphens: auto; }
.seg__note { margin-top: 4px; font-size: 15px; color: var(--muted); }
.seg__state { margin-top: 10px; font-family: var(--narrow); font-weight: 600; font-size: 16px; display: flex; align-items: center; gap: 8px; }
.seg--fehlt { padding-top: 0; }
.seg--fehlt .seg__rail { display: none; }
.seg--fehlt .seg__body { margin: 0 18px 0 0; padding: 14px 16px 16px; background: var(--signal-soft); border: 2.5px dotted var(--signal); color: var(--signal); min-height: 100%; }
.seg--fehlt .seg__kind, .seg--fehlt .seg__note { color: var(--signal); }
.seg--fehlt .seg__note { font-family: var(--mono); font-size: 15px; }
.seg--more .seg__body { padding-right: 0; }
.seg--more .seg__note { font-family: var(--mono); font-size: 13px; margin-top: 0; }
.chain__sample { margin-top: 22px; font-family: var(--mono); font-size: 13px; color: var(--muted); }

.rollup { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: 20px; margin-top: clamp(28px, 4vw, 48px); }
.rollup .plate { padding: clamp(18px, 2vw, 26px); background: var(--wall); }
.bar { display: flex; gap: 4px; height: 18px; margin-top: 14px; }
.bar span { flex-basis: 0; min-width: 0; }
.bar__belegt { background: var(--ink); }
.bar__vermutet { border: 2px solid var(--ink); background: repeating-linear-gradient(90deg, var(--ink) 0 2px, transparent 2px 6px); }
.bar__fehlt { border: 2px dotted var(--signal); }
.counts { display: flex; flex-wrap: wrap; gap: 6px 22px; margin-top: 10px; font-family: var(--narrow); font-weight: 600; font-size: 17px; }
.counts li { display: flex; align-items: center; gap: 8px; }
.counts__fehlt { color: var(--signal); }
.rollup__sentence { margin-top: 14px; font-size: 19px; font-weight: 600; }
.rollup__big { margin-top: 12px; font-weight: 800; font-size: clamp(24px, 2.4vw, 32px); line-height: 1.1; letter-spacing: -0.02em; }
.rollup__small { margin-top: 8px; font-size: 15px; color: var(--muted); }

/* Method */
.method__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: clamp(28px, 5vw, 84px); align-items: start; }
.rules { counter-reset: none; border-top: 4px solid var(--ink); }
.rules li { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 0 8px; padding: 18px 0; border-bottom: 1px solid var(--hair); }
.rules__no { font-family: var(--mono); font-weight: 500; font-size: 22px; line-height: 1.2; }
.rules p { font-size: 17px; }
.example { margin-top: 22px; padding: 16px 18px; background: var(--signal-soft); border: 2.5px dotted var(--signal); font-weight: 600; }
.example .label { display: block; color: var(--signal); margin-bottom: 4px; }
.notes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(20px, 3vw, 44px); margin-top: clamp(40px, 5vw, 72px); }
.notes__item { border-top: 1.5px solid var(--ink); padding-top: 14px; }
.notes h3 { font-family: var(--narrow); font-weight: 600; font-size: 13px; letter-spacing: 0.16em; text-transform: uppercase; line-height: 1.3; }
.notes p { margin-top: 10px; font-size: 15.5px; color: var(--muted); }

/* Hung screens with wall text */
.hung { min-width: 0; }
.hung__frame { border: 4px solid var(--ink); background: var(--wall); }
.hung__frame img { width: 100%; }
.walltext { margin-top: 18px; background: var(--card); border: 1.5px solid var(--ink); padding: 14px 16px 16px; }
.walltext__line { display: flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.walltext__cap { margin-top: 8px; font-weight: 800; font-size: 20px; line-height: 1.12; letter-spacing: -0.015em; }
.walltext__small { margin-top: 8px; font-size: 14.5px; line-height: 1.45; color: var(--muted); }
.hung--wide { margin-top: clamp(26px, 3vw, 40px); max-width: 520px; }

.tour { overflow: hidden; }
.tour__hint { display: none; margin-top: 16px; }
.wall { max-width: 1336px; margin: clamp(30px, 4vw, 56px) auto 0; padding: 0 var(--gutter); }
.wall__row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(36px, 4vw, 60px) clamp(18px, 2.4vw, 36px); }
.wall__row .hung:nth-child(even) { margin-top: 56px; }

/* Extra */
.extra__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr); gap: clamp(24px, 5vw, 84px); align-items: start; }
.index { border-top: 4px solid var(--ink); }
.index__row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 6px 28px; padding: 18px 0; border-bottom: 1px solid var(--hair); }
.index dt { font-weight: 600; font-size: 19px; line-height: 1.25; display: flex; gap: 14px; hyphens: auto; }
.index dt .mono { padding-top: 4px; }
.index dd { color: var(--muted); font-size: 16px; }

/* Limits – the one inverted block */
.limits { background: var(--ink); color: #fff; padding: clamp(56px, 8vw, 120px) 0; }
.limits .eyebrow { color: #c9c9c2; }
.limits__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 84px); align-items: start; }
.limits h2 { font-size: clamp(36px, 5.4vw, 80px); line-height: 0.98; }
.limits__experts { margin-top: 28px; font-size: clamp(19px, 1.7vw, 23px); font-weight: 600; line-height: 1.35; max-width: 30ch; }
.limits__note { margin-top: 10px; color: #c9c9c2; max-width: 40ch; }
.limits__list { border-top: 4px solid #fff; }
.limits__list li { position: relative; padding: 18px 0 18px 40px; border-bottom: 1px solid #44443f; font-size: clamp(17px, 1.4vw, 19px); line-height: 1.45; }
.limits__list li::before { content: ""; position: absolute; left: 0; top: 30px; width: 22px; border-top: 3px solid #fff; }

/* Private */
.private__grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 20px; margin-top: clamp(28px, 4vw, 52px); align-items: stretch; }
.facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border: 1.5px solid var(--ink); background: var(--card); }
.facts li { padding: 20px 22px; border-bottom: 1px solid var(--hair); }
.facts li:nth-child(odd) { border-right: 1px solid var(--hair); }
.facts li:last-child { grid-column: 1 / -1; border-right: 0; border-bottom: 0; }
.facts h3 { font-size: 19px; font-weight: 600; letter-spacing: -0.005em; line-height: 1.25; }
.facts p { margin-top: 6px; font-size: 15.5px; color: var(--muted); }
.gapbox { background: var(--signal-soft); border: 2.5px dotted var(--signal); padding: 22px 24px; }
.gapbox__label { display: flex; align-items: center; gap: 9px; font-family: var(--narrow); font-weight: 600; font-size: 13px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--signal); }
.gapbox h3 { margin-top: 12px; font-size: clamp(24px, 2.4vw, 32px); color: var(--signal); }
.gapbox p:last-child { margin-top: 12px; font-size: 16px; }
.private__link { margin-top: 24px; }

/* Closing */
.closing { padding: 0 0 clamp(52px, 7vw, 100px); }
.closing__plate { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 64px); align-items: end; border: 4px solid var(--ink); background: var(--card); padding: clamp(24px, 4vw, 56px); }
.closing__text { margin-top: 16px; font-size: 19px; max-width: 46ch; }
.closing__small { margin-top: 12px; font-size: 14.5px; color: var(--muted); }
.closing__small a { color: var(--ink); overflow-wrap: anywhere; }

/* Footer */
.foot { border-top: 4px solid var(--ink); padding: 36px 0 30px; background: var(--wall); }
.foot__grid { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) auto; gap: 24px 40px; align-items: start; }
.foot__brand img { width: 246px; height: auto; }
.foot__brand p { margin-top: 14px; color: var(--muted); max-width: 36ch; }
.foot__nav { display: grid; gap: 2px; justify-items: start; }
.foot__nav a, .foot__mail a { display: inline-block; padding: 7px 0; font-weight: 600; }
.foot__mail a { overflow-wrap: anywhere; }
.foot__meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 24px; margin-top: 30px; padding-top: 14px; border-top: 1px solid var(--hair); font-family: var(--mono); font-size: 12.5px; color: var(--muted); }

/* Document pages: privacy, support, versions, 404 */
.doc { padding: clamp(36px, 6vw, 80px) 0 clamp(52px, 7vw, 100px); }
/* Long compounds carry a soft hyphen in content.js, so they break at the joint on narrow screens. */
.doc__head { padding-bottom: clamp(28px, 4vw, 52px); }
.doc__head h1 { font-size: clamp(36px, 6vw, 84px); hyphens: manual; line-height: 0.98; letter-spacing: -0.035em; margin-top: 18px; }
.doc__head .lead { margin-top: 20px; font-size: clamp(18px, 1.6vw, 21px); line-height: 1.45; max-width: 60ch; }
.doc__head .mono { margin-top: 14px; }
.doc__head .btn { margin-top: 26px; }
.doc__head--gap { border: 2.5px dotted var(--signal); background: var(--signal-soft); padding: clamp(22px, 4vw, 48px); }
.row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2.2fr); gap: 14px clamp(24px, 5vw, 72px); padding: clamp(24px, 3vw, 40px) 0; border-top: 1.5px solid var(--ink); }
.row:first-of-type { border-top-width: 4px; }
.row__label h2 { font-size: clamp(21px, 2vw, 27px); line-height: 1.12; letter-spacing: -0.015em; }
.row__label .mono { margin-top: 8px; }
.row__body { max-width: 720px; min-width: 0; }
.row__body > * + * { margin-top: 14px; }
.row__strong { font-weight: 600; font-size: 19px; }
.ticks li { display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 0 10px; padding: 9px 0; border-bottom: 1px solid var(--hair); }
.ticks li:first-child { border-top: 1px solid var(--hair); }
.ticks .mk { margin-top: 0.36em; }
.tablewrap { overflow-x: auto; border: 1.5px solid var(--ink); background: var(--card); }
.table { width: 100%; border-collapse: collapse; font-size: 15.5px; }
.table th, .table td { text-align: left; vertical-align: top; padding: 12px 14px; border-bottom: 1px solid var(--hair); }
.table tr:last-child td { border-bottom: 0; }
.table th { font-family: var(--narrow); font-weight: 600; font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase; border-bottom: 1.5px solid var(--ink); }
.table td:first-child { width: 56%; }
.defs > div { display: grid; grid-template-columns: 130px minmax(0, 1fr); gap: 4px 18px; padding: 12px 0; border-bottom: 1px solid var(--hair); }
.defs > div:first-child { border-top: 1px solid var(--hair); }
.defs dt { font-weight: 600; }
.mail { display: inline-block; font-family: var(--mono); font-weight: 500; font-size: clamp(17px, 2.2vw, 24px); padding: 8px 0; overflow-wrap: anywhere; }
.note { font-size: 15.5px; color: var(--muted); }
.note--gap { color: var(--ink); background: var(--signal-soft); border: 2px dotted var(--signal); padding: 12px 14px; }
.steps li { display: grid; grid-template-columns: 52px minmax(0, 1fr); gap: 0 8px; padding: 16px 0; border-bottom: 1px solid var(--hair); }
.steps li:first-child { padding-top: 0; }
.steps__no { font-family: var(--mono); font-weight: 500; font-size: 20px; line-height: 1.3; }
.steps h3 { font-size: 20px; font-weight: 600; letter-spacing: -0.005em; line-height: 1.25; }
.steps p { margin-top: 4px; color: var(--muted); }
.faq details { border-bottom: 1px solid var(--hair); }
.faq details:first-child { border-top: 1px solid var(--hair); }
.faq summary { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding: 15px 0; min-height: 48px; cursor: pointer; font-weight: 600; font-size: 18px; line-height: 1.3; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; flex: none; width: 16px; height: 16px; margin-top: 4px; border: 2.5px dotted var(--signal); }
.faq details[open] summary::after { border: 2.5px solid var(--ink); background: var(--ink); }
.faq__a { padding: 0 32px 18px 0; color: var(--muted); }
.faq__a p + p { margin-top: 10px; }

/* Responsive */
@media (max-width: 1080px) {
  .top__wide { display: none; }
  .wall { padding: 0; overflow-x: auto; scroll-snap-type: x mandatory; scroll-padding-left: var(--gutter); -webkit-overflow-scrolling: touch; }
  .wall__row { display: flex; gap: 18px; width: max-content; padding: 0 var(--gutter) 18px; }
  .wall__row .hung { width: min(64vw, 300px); scroll-snap-align: start; }
  .wall__row .hung:nth-child(even) { margin-top: 0; }
  .tour__hint { display: block; }
  .extra__grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 900px) {
  .hero__grid, .method__grid, .limits__grid, .private__grid, .closing__plate, .rollup { grid-template-columns: minmax(0, 1fr); }
  .hero__grid { align-items: start; }
  .notes { grid-template-columns: minmax(0, 1fr); gap: 22px; }
  .foot__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .foot__brand { grid-column: 1 / -1; }
  .row { grid-template-columns: minmax(0, 1fr); }
  .hung--wide { max-width: 440px; }

  /* The chain turns into a vertical rail. */
  .chain__row { grid-template-columns: minmax(0, 1fr); }
  .seg { padding: 0 0 22px 44px; }
  .seg__rail { left: 11px; right: auto; top: 0; bottom: 0; border-top: 0; border-left: 4px solid var(--ink); }
  .seg--vermutet .seg__rail { border-top: 0; border-left-style: dashed; }
  .seg__rail .mk { left: -15px; top: 0; }
  .seg__body { padding: 0; }
  .seg--fehlt { padding: 0 0 22px 44px; }
  .seg--fehlt .seg__body { margin: 0; min-height: 0; }
  .seg--more { padding-bottom: 0; }
  .seg--more .seg__rail { border-image: linear-gradient(180deg, var(--ink), transparent) 1; border-left-style: solid; height: 28px; bottom: auto; }
  .seg--more .seg__body { padding-top: 2px; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .top__in { gap: 10px; min-height: 56px; }
  .top__cta { display: none; }
  .brand { font-size: 15px; gap: 8px; letter-spacing: -0.02em; }
  .brand img { width: 37px; height: 16px; }
  .top__nav { gap: 14px; }
  .top__nav a { font-size: 12.5px; letter-spacing: 0.06em; padding: 14px 0; }
  .hero h1 { font-size: clamp(40px, 12.4vw, 60px); }
  .hero__lead { font-size: 17px; }
  .states__row { grid-template-columns: minmax(0, 1fr); }
  .state { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 2px 16px; align-items: start; padding: 18px; }
  .state + .state { border-left: 0; border-top: 1.5px solid var(--ink); }
  .state__mark { grid-row: 1 / span 2; width: 64px; height: 64px; border-width: 7px; }
  .state h2 { margin-top: -4px; font-size: 34px; }
  .state p { margin-top: 2px; font-size: 15.5px; }
  .state__no { top: 16px; right: 16px; }
  .audience { grid-template-columns: minmax(0, 1fr); }
  .index__row { grid-template-columns: minmax(0, 1fr); }
  .facts { grid-template-columns: minmax(0, 1fr); }
  .facts li:nth-child(odd) { border-right: 0; }
  .foot__grid { grid-template-columns: minmax(0, 1fr); }
  .foot__brand img { width: 210px; }
  .table td:first-child { width: 58%; }
  .table th, .table td { padding: 10px; font-size: 14.5px; }
  .defs > div { grid-template-columns: minmax(0, 1fr); }
  .btn { font-size: 16px; padding: 12px 18px; }
  .faq__a { padding-right: 0; }
  /* The phone shows the same gap in the drawn chain above and in the tour below. */
  .method .hung--wide { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}


/* Very narrow phones: the header keeps one line by dropping the second link (it stays in the footer). */
@media (max-width: 372px) {
  .top__nav a:not(:last-child) { display: none; }
  .hero h1 { font-size: 38px; }
}