/* PHP to Motoko: site styles.
   Color logic: yellow marks what breaks or what you act on; sky blue marks what ICP handles. */

:root {
  --ink: #101216;
  --ink-2: #181b21;
  --ink-3: #0a0b0e;
  --ink-line: #2e333c;
  --paper: #f3f3ef;
  --white: #ffffff;
  --line: #d9dbd6;
  --text: #101216;
  --text-2: #4a4f57;
  --text-3: #636973;
  --on-ink: #f3f3ef;
  --on-ink-2: #aeb4bd;
  --marker: #ffe15a;
  --marker-edge: #c9a92a;
  --sky: #bfddfb;
  --sky-edge: #7fa6cc;
  --font: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --mono: "Martian Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --wrap: 1240px;
  --pad: clamp(20px, 4vw, 40px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--font);
  font-size: 18px;
  line-height: 1.55;
  font-stretch: 100%;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--marker); outline-offset: 3px; border-radius: 2px; }
.band-white :focus-visible, .problem :focus-visible, .steps-sec :focus-visible, .code-sec :focus-visible { outline-color: var(--ink); }
p { margin: 0; }
h1, h2, h3 { margin: 0; font-stretch: 112%; letter-spacing: -0.03em; line-height: 1; text-wrap: balance; }
code { font-family: var(--mono); font-stretch: 87.5%; font-size: 0.82em; background: #e7e8e3; padding: 2px 6px; border-radius: 4px; }
mark { background: var(--marker); color: var(--ink); padding: 0 0.12em; border-radius: 3px; -webkit-box-decoration-break: clone; box-decoration-break: clone; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: var(--pad); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: -9999px; top: 8px; z-index: 20; background: var(--marker); color: var(--ink); padding: 12px 16px; border-radius: 6px; font-weight: 700; text-decoration: none; }
.skip-link:focus { left: 16px; }

section { padding-block: clamp(80px, 10vw, 144px); }
.band-ink { background: var(--ink); color: var(--on-ink); }
.band-white { background: var(--white); }
h2 { font-size: clamp(38px, 5vw, 70px); font-weight: 800; line-height: 0.96; letter-spacing: -0.035em; }
.lead { font-size: clamp(18px, 1.45vw, 21px); line-height: 1.5; color: var(--text-2); max-width: 60ch; }
.band-ink .lead { color: var(--on-ink-2); }
.sec-head { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 24px 72px; align-items: end; }
.sec-head .lead { justify-self: start; }

/* Buttons and links */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 54px; padding: 0 26px; border: 0; border-radius: 8px; font-family: var(--font); font-size: 17px; font-weight: 700; font-stretch: 105%; letter-spacing: -0.005em; text-decoration: none; cursor: pointer; transition: transform 0.12s ease, box-shadow 0.12s ease; }
.btn-marker { background: var(--marker); color: var(--ink); box-shadow: 0 4px 0 0 var(--marker-edge); }
.btn-ink { background: var(--ink); color: var(--on-ink); box-shadow: 0 4px 0 0 #000; }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(3px); box-shadow: 0 1px 0 0 var(--marker-edge); }
.btn-ink:active { box-shadow: 0 1px 0 0 #000; }
.text-link { display: inline-flex; align-items: center; min-height: 54px; font-size: 17px; font-weight: 700; }
.band-ink .text-link, .top .text-link { color: var(--on-ink); }

/* Alert bar */
.alert { background: var(--marker); color: var(--ink); font-size: 15px; line-height: 1.4; }
.alert-in { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 6px 20px; padding-block: 10px; }
.alert a { font-weight: 700; }

/* Header and hero (dark) */
.top { background: var(--ink); color: var(--on-ink); }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 14px; }
.brand { display: inline-flex; align-items: center; gap: 10px; min-height: 44px; font-size: 19px; font-weight: 800; font-stretch: 115%; letter-spacing: -0.02em; text-decoration: none; }
.brand .mark { width: 26px; height: 26px; flex: none; }
.nav-links { display: flex; align-items: center; gap: 4px 28px; font-size: 15px; }
.nav-links a { display: inline-flex; align-items: center; min-height: 44px; color: var(--on-ink-2); text-decoration: none; }
.nav-links a:hover { color: var(--on-ink); }
.nav-links .nav-cta { padding: 0 16px; background: var(--marker); color: var(--ink); border-radius: 7px; font-weight: 700; }
.nav-links .nav-cta:hover { color: var(--ink); }

.hero { padding-block: clamp(28px, 4.5vw, 64px) clamp(48px, 7vw, 96px); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.14fr) minmax(0, 0.86fr); gap: clamp(44px, 6vw, 88px); align-items: center; }
.hero h1 { font-weight: 850; letter-spacing: -0.045em; line-height: 0.9; }
.hero .h1-1 { display: block; font-size: clamp(46px, 6.2vw, 90px); font-stretch: 114%; }
.hero .h1-2 { display: block; margin-top: 0.42em; font-size: clamp(24px, 2.7vw, 40px); font-stretch: 108%; letter-spacing: -0.03em; line-height: 1.1; }
.hero .h1-2 mark { padding: 0.02em 0.16em; }
.hero .lead { margin-top: 26px; color: var(--on-ink-2); }
.hero-ctas { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px; margin-top: 36px; }
.built-for { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; margin-top: clamp(48px, 6vw, 80px); padding-top: 24px; border-top: 1px solid var(--ink-line); font-size: 14px; color: var(--on-ink-2); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 0; padding: 0; }
.chips li { padding: 6px 12px; border: 1px solid var(--ink-line); border-radius: 999px; color: var(--on-ink); font-size: 14px; }

/* Hero diagram: five layers you patch, versus one that is yours */
.viz { margin: 0; display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); gap: 18px; align-items: stretch; }
.viz-col { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.viz-title { font-family: var(--mono); font-stretch: 87.5%; font-size: 12px; color: var(--on-ink-2); }
.slabs { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; flex: 1 1 auto; }
.slab { position: relative; padding: 13px 15px; background: var(--ink-2); border: 1px solid #3a3f49; border-radius: 7px; box-shadow: 0 5px 0 0 var(--ink-3); font-size: 15px; font-weight: 600; line-height: 1.25; }
.slab .tag { display: block; margin-top: 4px; font-family: var(--mono); font-stretch: 87.5%; font-size: 11.5px; font-weight: 500; }
.slab small { display: block; margin-top: 6px; font-size: 13px; font-weight: 400; line-height: 1.4; color: #2b3440; }
.slab-flaw { background: var(--marker); border-color: var(--marker); color: var(--ink); box-shadow: 0 5px 0 0 var(--marker-edge); }
.slab-you { background: transparent; border-style: dashed; border-color: var(--on-ink-2); }
.slab-icp { flex: 1 1 auto; display: flex; flex-direction: column; justify-content: center; background: var(--sky); border-color: var(--sky); color: var(--ink); box-shadow: 0 5px 0 0 var(--sky-edge); font-size: 17px; }
.viz-foot { margin-top: 6px; font-size: 13px; color: var(--on-ink-2); }
.viz-foot b { color: var(--on-ink); font-weight: 700; }
.viz-arrow { align-self: center; display: flex; flex-direction: column; align-items: center; gap: 10px; }
.viz-arrow .line { position: relative; display: block; width: 72px; height: 2px; background: var(--marker); transform-origin: left center; }
.viz-arrow .line::after { content: ""; position: absolute; right: -2px; top: -5px; border-left: 10px solid var(--marker); border-top: 6px solid transparent; border-bottom: 6px solid transparent; }
.viz-arrow .label { font-family: var(--mono); font-stretch: 87.5%; font-size: 11px; line-height: 1.35; color: var(--marker); text-align: center; max-width: 88px; }

@media (prefers-reduced-motion: no-preference) {
  .viz-php .slab, .viz-icp .slab, .viz-arrow .label { animation: rise 0.55s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
  .viz-php .slab:nth-child(2) { animation-delay: 0.08s; }
  .viz-php .slab:nth-child(3) { animation-delay: 0.16s; }
  .viz-php .slab:nth-child(4) { animation-delay: 0.24s; }
  .viz-php .slab:nth-child(5) { animation-delay: 0.32s; }
  .viz-php .slab-flaw { animation: rise 0.55s cubic-bezier(0.2, 0.7, 0.2, 1) 0.08s both, flare 1.1s ease-out 0.75s 2; }
  .viz-arrow .line { animation: draw 0.6s ease-out 1.25s both; }
  .viz-arrow .label { animation-delay: 1.45s; }
  .viz-icp .slab { animation-delay: 1.7s; }
  .viz-icp .slab-icp { animation-delay: 1.82s; }
}
@keyframes rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes flare { from { box-shadow: 0 5px 0 0 var(--marker-edge), 0 0 0 0 rgba(255, 225, 90, 0.75); } to { box-shadow: 0 5px 0 0 var(--marker-edge), 0 0 0 16px rgba(255, 225, 90, 0); } }
@keyframes draw { from { transform: scaleX(0); } to { transform: scaleX(1); } }

/* The problem */
.err { margin: 0; }
.errline { font-family: var(--mono); font-stretch: 100%; font-weight: 500; font-size: clamp(25px, 3.6vw, 52px); line-height: 1.14; letter-spacing: -0.015em; max-width: 24ch; }
.err figcaption { margin-top: 16px; max-width: 62ch; color: var(--text-2); font-size: 16px; }
.problem-grid { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr); gap: 56px 80px; align-items: start; margin-top: clamp(56px, 7vw, 96px); }
.facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 36px; }
.fact { padding: 18px 18px 16px; background: var(--white); border: 1px solid var(--line); border-radius: 9px; }
.fact b { display: block; font-size: clamp(34px, 3.4vw, 50px); font-weight: 850; font-stretch: 118%; letter-spacing: -0.04em; line-height: 1; }
.fact span { display: block; margin-top: 8px; font-size: 14px; line-height: 1.35; color: var(--text-2); }
.problem .body { margin-top: 28px; max-width: 60ch; color: var(--text-2); }
.offline { margin-top: 32px; padding-top: 22px; border-top: 1px solid var(--line); }
.offline p { font-family: var(--mono); font-stretch: 87.5%; font-size: 12px; color: var(--text-3); }
.offline ul { list-style: none; margin: 12px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 28px; }
.offline li { font-size: clamp(20px, 2vw, 26px); font-weight: 800; font-stretch: 110%; letter-spacing: -0.02em; }

.checker { padding: 28px; background: var(--white); border: 1.5px solid var(--ink); border-radius: 12px; box-shadow: 0 7px 0 0 var(--ink); }
.checker fieldset { margin: 0; padding: 0; border: 0; min-width: 0; }
.checker legend { padding: 0; margin-bottom: 16px; font-size: 24px; font-weight: 800; font-stretch: 112%; letter-spacing: -0.025em; line-height: 1.15; }
.versions { display: flex; flex-wrap: wrap; gap: 8px; }
.versions label { position: relative; }
.versions input, .target input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.versions span { display: inline-flex; align-items: center; min-height: 46px; padding: 0 15px; border: 1px solid var(--line); border-radius: 7px; font-family: var(--mono); font-stretch: 87.5%; font-size: 14px; cursor: pointer; transition: background 0.12s ease, color 0.12s ease; }
.versions span:hover { border-color: var(--ink); }
.versions input:checked + span { background: var(--ink); border-color: var(--ink); color: var(--on-ink); }
.versions input:focus-visible + span { outline: 3px solid var(--ink); outline-offset: 2px; }
.result { margin-top: 22px; padding-top: 20px; border-top: 1px solid var(--line); min-height: 112px; }
.result .to { font-size: 14px; color: var(--text-2); }
.result .ver { margin-top: 4px; font-family: var(--mono); font-size: clamp(38px, 4.2vw, 56px); font-weight: 500; line-height: 1.1; }
.result .old { font-size: 17px; line-height: 1.45; }
.checker-note { margin-top: 20px; font-size: 16px; color: var(--text-2); }
.checker-note strong { color: var(--text); }
.checker .text-link { min-height: 44px; margin-top: 6px; font-size: 16px; }

/* Why (dark) */
.why-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; margin-top: clamp(48px, 6vw, 80px); }
.why-item { padding-top: 26px; border-top: 1px solid var(--ink-line); }
.why-item svg { display: block; width: 44px; height: 44px; color: var(--marker); }
.why-item h3 { margin: 20px 0 12px; font-size: 26px; font-weight: 800; letter-spacing: -0.025em; line-height: 1.08; }
.why-item p { color: var(--on-ink-2); }
.caveat { margin-top: 56px; padding: 20px 22px; max-width: 78ch; border: 1px solid var(--ink-line); border-radius: 9px; font-size: 16px; color: var(--on-ink-2); }
.caveat strong { color: var(--on-ink); }

/* Steps */
.steps { list-style: none; margin: clamp(48px, 6vw, 72px) 0 0; padding: 0; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; counter-reset: none; }
.step { display: flex; flex-direction: column; gap: 10px; min-height: 236px; padding: 20px 18px 22px; background: var(--white); border: 1px solid var(--line); border-radius: 10px; }
.step .n { font-family: var(--mono); font-stretch: 87.5%; font-size: 13px; color: var(--text-3); }
.step h3 { font-size: 21px; font-weight: 800; font-stretch: 108%; letter-spacing: -0.02em; line-height: 1.1; }
.step p { font-size: 15.5px; line-height: 1.5; color: var(--text-2); }
.step-you { background: var(--ink); border-color: var(--ink); color: var(--on-ink); }
.step-you .n { color: var(--marker); }
.step-you p { color: var(--on-ink-2); }
.badge { align-self: flex-start; margin-top: auto; padding: 5px 9px; background: var(--marker); color: var(--ink); border-radius: 5px; font-family: var(--mono); font-stretch: 87.5%; font-size: 11.5px; font-weight: 500; }
.steps-note { margin-top: 28px; font-size: 16px; color: var(--text-2); }

/* The skill */
.skill-grid { display: grid; grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); gap: clamp(44px, 6vw, 88px); align-items: start; margin-top: clamp(40px, 5vw, 64px); }
.skill .lead code { font-size: 0.8em; }
.tested { margin-top: 18px; font-size: 15px; color: var(--text-3); }
.inside { list-style: none; margin: 32px 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 28px; }
.inside li { position: relative; padding-left: 22px; font-size: 16px; line-height: 1.4; }
.inside li::before { content: ""; position: absolute; left: 0; top: 0.42em; width: 10px; height: 10px; background: var(--marker); border: 1.5px solid var(--ink); border-radius: 2px; }
.inside a { font-weight: 700; }
.skill-ctas { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px; margin-top: 36px; }

.console { overflow: hidden; background: var(--ink); color: var(--on-ink); border-radius: 14px; box-shadow: 0 9px 0 0 #000; }
.console-head { display: flex; justify-content: space-between; gap: 12px; padding: 13px 20px; border-bottom: 1px solid var(--ink-line); font-family: var(--mono); font-stretch: 87.5%; font-size: 12px; color: var(--on-ink-2); }
.console-body { padding: 24px 22px 26px; }
.console-step { padding: 0; margin: 0 0 10px; font-size: 15px; font-weight: 700; color: var(--on-ink); }
.console-step + .cmd { margin-bottom: 24px; }
.cmd, .prompt { margin: 0; font-family: var(--mono); font-stretch: 87.5%; background: var(--ink-3); border: 1px solid var(--ink-line); border-radius: 9px; }
.cmd { padding: 12px 14px; font-size: 13.5px; overflow-x: auto; white-space: pre; }
.target { margin: 0 0 24px; padding: 0; border: 0; min-width: 0; }
.opts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.opts label { position: relative; cursor: pointer; }
.opts span { display: block; min-height: 44px; padding: 12px 14px; border: 1px solid var(--ink-line); border-radius: 9px; font-size: 15px; font-weight: 700; line-height: 1.25; transition: border-color 0.12s ease; }
.opts span small { display: block; margin-top: 3px; font-size: 13px; font-weight: 400; color: var(--on-ink-2); }
.opts span:hover { border-color: var(--on-ink-2); }
.opts input:checked + span { border-color: var(--marker); box-shadow: inset 0 0 0 1px var(--marker); }
.opts input:focus-visible + span { outline: 3px solid var(--marker); outline-offset: 2px; }
.prompt { padding: 16px; min-height: 178px; font-size: 14px; line-height: 1.65; }
.copy-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; margin-top: 16px; }
.copy-row #copy-status { font-size: 14px; color: var(--on-ink-2); }
.console-foot { margin-top: 18px; font-size: 13.5px; color: var(--on-ink-2); }

/* Code comparison */
.code-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(540px, 100%), 1fr)); gap: 20px; margin-top: clamp(44px, 5vw, 64px); }
.code { margin: 0; overflow: hidden; background: var(--white); border: 1px solid var(--line); border-radius: 12px; }
.code-dark { background: var(--ink); border-color: var(--ink); color: var(--on-ink); }
.code-head { display: flex; justify-content: space-between; gap: 12px; padding: 13px 20px; border-bottom: 1px solid var(--line); font-family: var(--mono); font-stretch: 87.5%; font-size: 12px; color: var(--text-2); }
.code-dark .code-head { border-color: var(--ink-line); color: var(--on-ink-2); }
.code pre code { background: none; padding: 0; border-radius: 0; font-size: inherit; font-stretch: inherit; color: inherit; }
.code pre { margin: 0; padding: 22px 20px; overflow-x: auto; font-family: var(--mono); font-stretch: 75%; font-size: 13px; line-height: 1.72; }
.code-dark mark { background: var(--sky); }
.code figcaption { padding: 0 20px 20px; font-size: 15px; color: var(--text-2); }
.code-dark figcaption { color: var(--on-ink-2); }
.code-dark figcaption code { background: #262b33; color: var(--on-ink); }
.code-note { margin-top: 20px; font-size: 15px; color: var(--text-3); }

/* FAQ */
.faq-grid { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: 40px 80px; align-items: start; }
.faq-list details { border-top: 1px solid var(--line); }
.faq-list details:last-child { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 22px 0; list-style: none; cursor: pointer; font-size: 20px; font-weight: 700; font-stretch: 106%; letter-spacing: -0.01em; line-height: 1.3; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; flex: none; display: grid; place-items: center; width: 34px; height: 34px; border: 1px solid var(--line); border-radius: 8px; font-family: var(--mono); font-size: 20px; font-weight: 400; }
.faq-list details[open] summary::after { content: "\2212"; background: var(--ink); border-color: var(--ink); color: var(--on-ink); }
.faq-list summary:hover::after { border-color: var(--ink); }
.faq-list details p { padding-bottom: 24px; max-width: 62ch; color: var(--text-2); }

/* Final call to action */
.final h2 { font-size: clamp(46px, 7.6vw, 116px); line-height: 0.92; letter-spacing: -0.045em; font-stretch: 116%; }
.final h2 span { display: block; }
.final h2 mark { display: inline; padding: 0 0.1em; }
.final-row { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 32px 48px; }
.final p { margin-top: 28px; max-width: 46ch; color: var(--on-ink-2); font-size: 19px; }
.final-ctas { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 28px; }

/* Footer */
.foot { background: var(--ink); color: var(--on-ink-2); font-size: 15px; border-top: 1px solid var(--ink-line); }
.foot-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px 40px; padding-block: 44px 28px; }
.foot .brand { color: var(--on-ink); }
.foot-links { display: flex; flex-wrap: wrap; gap: 6px 24px; list-style: none; margin: 0; padding: 0; }
.foot-links a { display: inline-flex; align-items: center; min-height: 44px; color: var(--on-ink); text-decoration: none; }
.foot-links a:hover { text-decoration: underline; }
.agents { max-width: 80ch; padding-block: 22px; border-top: 1px solid var(--ink-line); }
.agents strong { color: var(--on-ink); }
.agents a { color: var(--on-ink); }
.sources { border-top: 1px solid var(--ink-line); }
.sources summary { display: flex; align-items: center; min-height: 56px; cursor: pointer; color: var(--on-ink); font-weight: 700; }
.sources ul { list-style: none; margin: 0 0 24px; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(340px, 100%), 1fr)); gap: 4px 32px; }
.sources a { display: inline-flex; min-height: 40px; align-items: center; color: var(--on-ink); }
.foot-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 32px; padding-block: 22px 40px; border-top: 1px solid var(--ink-line); font-size: 14px; }

/* Responsive */
@media (max-width: 1100px) {
  .steps { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 980px) {
  .hero-grid, .problem-grid, .skill-grid, .faq-grid, .sec-head { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; gap: 8px; }
}
@media (max-width: 820px) {
  .nav-links .nl { display: none; }
}
@media (max-width: 640px) {
  body { font-size: 17px; }
  .steps { grid-template-columns: 1fr; }
  .step { min-height: 0; }
  .facts { grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
  .fact { padding: 14px 12px; }
  .fact span { font-size: 13px; }
  .inside, .opts { grid-template-columns: 1fr; }
  .viz { grid-template-columns: 1fr; }
  .viz-arrow { flex-direction: row; justify-content: center; }
  .viz-arrow .line { width: 2px; height: 34px; transform-origin: center top; }
  .viz-arrow .line::after { right: auto; left: -5px; top: auto; bottom: -2px; border-left: 6px solid transparent; border-right: 6px solid transparent; border-top: 10px solid var(--marker); border-bottom: 0; }
  .slab-icp { min-height: 120px; }
  .checker { padding: 22px; }
  @media (prefers-reduced-motion: no-preference) {
    .viz-arrow .line { animation-name: drawdown; }
  }
}
@keyframes drawdown { from { transform: scaleY(0); } to { transform: scaleY(1); } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}