/* Vector & Val — Journal. Brand type only (Cinzel + Jost), purple / pearl palette, no gold. */
@font-face { font-family: 'Cinzel'; font-style: normal; font-weight: 400; font-display: swap; src: url(/vv/fonts/brand-1.ttf) format('truetype'); }
@font-face { font-family: 'Cinzel'; font-style: normal; font-weight: 500; font-display: swap; src: url(/vv/fonts/brand-2.ttf) format('truetype'); }
@font-face { font-family: 'Jost'; font-style: normal; font-weight: 300; font-display: swap; src: url(/vv/fonts/brand-4.ttf) format('truetype'); }
@font-face { font-family: 'Jost'; font-style: normal; font-weight: 400; font-display: swap; src: url(/vv/fonts/brand-5.ttf) format('truetype'); }
@font-face { font-family: 'Jost'; font-style: normal; font-weight: 500; font-display: swap; src: url(/vv/fonts/brand-6.ttf) format('truetype'); }

:root {
  --pearl: #f4f3f6; --pearl-2: #ebe8f1; --lav: #d9cfee; --lav-2: #bfa9ea; --purple: #3f1770; --royal: #531d90; --deep: #2a0e4e; --night: #1d0a38;
  --ink: #1b1526; --muted: rgba(27, 21, 38, .6); --rule: rgba(63, 23, 112, .16); --rule-dark: rgba(244, 243, 246, .16);
  --serif: 'Cinzel', 'Times New Roman', serif; --sans: 'Jost', 'Helvetica Neue', Arial, sans-serif;
  --nav-h: 56px; --gutter: clamp(20px, 4vw, 40px); --ease: cubic-bezier(.16, 1, .1, 1);
}
* { box-sizing: border-box; }
html { background: var(--pearl); -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 300 18.5px/1.62 var(--sans); color: var(--ink); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
a { color: inherit; text-decoration: none; }
img, svg, canvas { display: block; max-width: 100%; }
button { font: inherit; color: inherit; }
::selection { background: var(--lav); color: var(--deep); }
:focus-visible { outline: 2px solid var(--royal); outline-offset: 3px; }

/* ---------- small type styles */
.bl-eyebrow { font: 500 12px/1.3 var(--serif); letter-spacing: .2em; text-transform: uppercase; color: var(--lav-2); }
.bl-meta { display: flex; flex-wrap: wrap; gap: 6px 18px; font: 400 12px/1.4 var(--sans); letter-spacing: .12em; text-transform: uppercase; }
.bl-label { font: 400 11px/1.3 var(--sans); letter-spacing: .18em; text-transform: uppercase; }
.bl-num { font: 400 1em/1 var(--serif); letter-spacing: .06em; }

/* ---------- progress + nav */
.bl-progress { position: fixed; top: 0; left: 0; height: 2px; width: 100%; background: var(--lav-2); transform-origin: left; transform: scaleX(0); z-index: 40; pointer-events: none; }
.bl-nav { position: fixed; top: 0; left: 0; right: 0; height: var(--nav-h); z-index: 30; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding: 0 var(--gutter); color: var(--purple); background: rgba(244, 243, 246, .86); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); border-bottom: 1px solid var(--rule); transition: background .5s, color .5s, border-color .5s; }
.bl-nav--dark { color: var(--pearl); background: rgba(29, 10, 56, .55); border-bottom-color: var(--rule-dark); }
.bl-nav__menu { justify-self: start; display: flex; align-items: center; gap: 10px; background: none; border: 0; padding: 8px 0; cursor: pointer; font: 400 12px/1 var(--sans); letter-spacing: .18em; text-transform: uppercase; }
.bl-nav__lines { position: relative; width: 22px; height: 12px; }
.bl-nav__lines i { position: absolute; left: 0; width: 100%; height: 2px; background: currentColor; transition: transform .45s var(--ease), top .45s var(--ease); }
.bl-nav__lines i:first-child { top: 0; } .bl-nav__lines i:last-child { top: 10px; }
.bl-nav.is-open .bl-nav__lines i:first-child { top: 5px; transform: rotate(45deg); }
.bl-nav.is-open .bl-nav__lines i:last-child { top: 5px; transform: rotate(-45deg); }
.bl-nav__brand { justify-self: center; display: inline-flex; align-items: center; gap: 10px; }
.bl-nav__brand .vv-mark__svg { width: 22px; height: 22px; }
.bl-nav__brand .vv-brand__svg { height: 13px; width: auto; }
.bl-nav__right { justify-self: end; font: 400 12px/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; opacity: .8; white-space: nowrap; }
.bl-menu { position: fixed; top: 0; left: 0; right: 0; z-index: 29; background: var(--pearl); color: var(--purple); border-radius: 0 0 20px 20px; padding: calc(var(--nav-h) + 28px) var(--gutter) 34px; transform: translateY(-105%); transition: transform 1s var(--ease); box-shadow: 0 30px 60px rgba(42, 14, 78, .18); }
.bl-menu.is-open { transform: none; }
.bl-menu__links { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.bl-menu__links a { font: 500 clamp(30px, 5vw, 44px)/1.15 var(--serif); letter-spacing: .02em; display: inline-block; transition: opacity .3s; }
.bl-menu__links a:hover { opacity: .6; }
.bl-menu__links a[aria-current] { color: var(--royal); }
.bl-menu__contact { margin: 26px 0 0; font: 400 14px/1.4 var(--sans); }
.bl-overlay { position: fixed; inset: 0; z-index: 28; background: rgba(29, 10, 56, .5); opacity: 0; pointer-events: none; transition: opacity .6s; }
.bl-overlay.is-on { opacity: 1; pointer-events: auto; }

/* ---------- layout */
.bl-wrap { width: min(1160px, 100% - 2 * var(--gutter)); margin: 0 auto; }
.bl-dark { color: var(--pearl); background: radial-gradient(130% 100% at 12% 0%, #5b26a0 0%, var(--royal) 34%, var(--deep) 78%, var(--night) 100%); position: relative; overflow: hidden; }
.bl-dark:after { content: ""; position: absolute; inset: 0; pointer-events: none; mix-blend-mode: overlay; opacity: .5; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.1'/%3E%3C/svg%3E"); }
.bl-dark > * { position: relative; z-index: 1; }
.bl-grid-lines { position: absolute; inset: 0; z-index: 0; pointer-events: none; background-image: linear-gradient(rgba(244, 243, 246, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(244, 243, 246, .045) 1px, transparent 1px); background-size: 72px 72px; mask-image: radial-gradient(80% 80% at 70% 50%, #000 30%, transparent 100%); -webkit-mask-image: radial-gradient(80% 80% at 70% 50%, #000 30%, transparent 100%); }

/* ---------- turntable: CAD line-art on the left of the divider, the finished render on the right */
.bl-turn { position: relative; aspect-ratio: 1280 / 690; user-select: none; -webkit-user-select: none; touch-action: pan-y; }
.bl-turn canvas { width: 100%; height: 100%; cursor: grab; }
.bl-turn.is-dragging canvas { cursor: grabbing; }
.bl-turn__divider { position: absolute; top: 4%; bottom: 4%; left: 50%; width: 1px; background: rgba(244, 243, 246, .55); pointer-events: none; }
.bl-turn__handle { position: absolute; top: 50%; left: 50%; width: 44px; height: 44px; margin: -22px 0 0 -22px; border-radius: 50%; border: 1px solid rgba(244, 243, 246, .75); background: rgba(29, 10, 56, .35); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); cursor: ew-resize; touch-action: none; display: grid; place-items: center; transition: transform .4s var(--ease), background .3s; }
.bl-turn__handle:hover, .bl-turn__handle.is-active { transform: scale(1.08); background: rgba(29, 10, 56, .6); }
.bl-turn__handle svg { width: 18px; height: 10px; stroke: var(--pearl); fill: none; stroke-width: 1.5; }
.bl-turn__labels { position: absolute; left: 0; right: 0; bottom: 0; display: flex; justify-content: space-between; padding: 0 2px; font: 500 11px/1 var(--sans); letter-spacing: .2em; text-transform: uppercase; color: rgba(244, 243, 246, .62); pointer-events: none; }
p.bl-turn__hint { margin: 12px 0 0; max-width: none; text-align: center; font: 300 12.5px/1.4 var(--sans); letter-spacing: .04em; color: rgba(244, 243, 246, .55); }
.bl-turn__corners { position: absolute; inset: 0; pointer-events: none; --c: rgba(244, 243, 246, .5); background:
  linear-gradient(var(--c), var(--c)) 0 0 / 16px 1px no-repeat, linear-gradient(var(--c), var(--c)) 0 0 / 1px 16px no-repeat,
  linear-gradient(var(--c), var(--c)) 100% 0 / 16px 1px no-repeat, linear-gradient(var(--c), var(--c)) 100% 0 / 1px 16px no-repeat,
  linear-gradient(var(--c), var(--c)) 0 100% / 16px 1px no-repeat, linear-gradient(var(--c), var(--c)) 0 100% / 1px 16px no-repeat,
  linear-gradient(var(--c), var(--c)) 100% 100% / 16px 1px no-repeat, linear-gradient(var(--c), var(--c)) 100% 100% / 1px 16px no-repeat; }
.bl-turn__tag { position: absolute; top: 10px; left: 12px; font: 400 11px/1 var(--sans); letter-spacing: .18em; text-transform: uppercase; color: rgba(244, 243, 246, .55); pointer-events: none; }
.bl-turn__tag b { font-weight: 500; color: rgba(244, 243, 246, .85); }
.bl-turn--light .bl-turn__divider { background: rgba(63, 23, 112, .45); }
.bl-turn--light .bl-turn__handle { border-color: rgba(63, 23, 112, .6); background: rgba(244, 243, 246, .6); }
.bl-turn--light .bl-turn__handle svg { stroke: var(--purple); }
.bl-turn--light .bl-turn__labels, .bl-turn--light + p.bl-turn__hint, .bl-turn--light .bl-turn__tag { color: rgba(63, 23, 112, .6); }
.bl-turn--light .bl-turn__corners { --c: rgba(63, 23, 112, .35); }

/* ---------- article hero */
.bl-hero { padding: calc(var(--nav-h) + clamp(44px, 8vw, 96px)) 0 clamp(90px, 10vw, 130px); }
.bl-hero__grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: clamp(28px, 5vw, 72px); align-items: center; }
.bl-hero h1 { margin: 22px 0 20px; font: 400 clamp(32px, 4.3vw, 58px)/1.08 var(--serif); letter-spacing: .005em; text-wrap: balance; }
.bl-hero__dek { margin: 0 0 28px; max-width: 32em; font: 300 clamp(17px, 1.45vw, 20.5px)/1.5 var(--sans); color: rgba(244, 243, 246, .8); }
.bl-hero .bl-meta { color: rgba(244, 243, 246, .62); }
.bl-hero__art { position: relative; }

/* ---------- "in 30 seconds" strip: front-loads the answer for scanners */
.bl-brief { position: relative; z-index: 2; margin-top: clamp(-64px, -6vw, -44px); }
.bl-brief__card { display: grid; grid-template-columns: 200px 1fr; gap: 24px 40px; padding: 30px 36px; background: var(--pearl); color: var(--ink); border: 1px solid var(--rule); border-radius: 18px; box-shadow: 0 30px 60px rgba(29, 10, 56, .25); }
.bl-brief__head { font: 500 17px/1.3 var(--serif); color: var(--purple); }
.bl-brief__head small { display: block; margin-top: 8px; font: 400 11px/1.4 var(--sans); letter-spacing: .18em; text-transform: uppercase; color: var(--muted); }
.bl-brief ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.bl-brief li { position: relative; padding-left: 22px; font-size: 16.5px; line-height: 1.5; }
.bl-brief li:before { content: ""; position: absolute; left: 0; top: .62em; width: 10px; height: 1px; background: var(--purple); }

/* ---------- article body */
.bl-article { padding: clamp(44px, 6vw, 80px) 0 clamp(56px, 8vw, 110px); }
.bl-article__grid { display: grid; grid-template-columns: 230px minmax(0, 620px); gap: clamp(32px, 6vw, 110px); justify-content: center; }
.bl-side { position: sticky; top: calc(var(--nav-h) + 28px); align-self: start; }
.bl-tools { display: inline-flex; padding: 3px; border: 1px solid var(--rule); border-radius: 30px; margin-bottom: 26px; }
.bl-tools button { border: 0; background: none; padding: 7px 14px; border-radius: 30px; font: 400 12px/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); cursor: pointer; transition: background .3s, color .3s; }
.bl-tools button[aria-pressed="true"] { background: var(--purple); color: var(--pearl); }
.bl-toc__label { margin: 0 0 12px; font: 500 12px/1 var(--serif); letter-spacing: .2em; text-transform: uppercase; color: var(--purple); }
.bl-toc ol { list-style: none; margin: 0; padding: 0; border-left: 1px solid var(--rule); }
.bl-toc li a { display: grid; grid-template-columns: 26px 1fr; gap: 6px; padding: 7px 0 7px 14px; margin-left: -1px; border-left: 1px solid transparent; font: 400 14px/1.35 var(--sans); color: var(--muted); transition: color .3s, border-color .3s; }
.bl-toc li a i { font: 400 12px/1.6 var(--serif); letter-spacing: .06em; font-style: normal; color: var(--lav-2); }
.bl-toc li a:hover, .bl-toc li a.is-active { color: var(--purple); border-left-color: var(--purple); }
.bl-toc li a.is-active i { color: var(--purple); }
.bl-side__note { margin: 26px 0 0; padding-top: 18px; border-top: 1px solid var(--rule); font: 300 13.5px/1.5 var(--sans); color: var(--muted); }
.bl-prose > :first-child { margin-top: 0; }
.bl-prose p { margin: 0 0 1.3em; }
.bl-prose p.bl-lead { font-size: 1.14em; line-height: 1.5; color: var(--purple); }
.bl-prose h2 { margin: 2.5em 0 .65em; font: 500 clamp(23px, 2.3vw, 30px)/1.2 var(--serif); color: var(--purple); scroll-margin-top: calc(var(--nav-h) + 22px); text-wrap: balance; }
.bl-prose h2:before { content: attr(data-n); display: block; margin-bottom: 10px; font: 400 13px/1 var(--serif); letter-spacing: .2em; color: var(--lav-2); }
.bl-prose h3 { margin: 1.9em 0 .5em; font: 500 19.5px/1.3 var(--sans); color: var(--purple); }
.bl-prose strong { font-weight: 500; color: var(--purple); }
.bl-prose ul, .bl-prose ol { margin: 0 0 1.4em; padding-left: 1.25em; }
.bl-prose li { margin: 0 0 .55em; padding-left: .15em; }
.bl-prose ul li::marker { color: var(--lav-2); }
.bl-prose ol li::marker { font-family: var(--serif); color: var(--lav-2); font-size: .85em; }
.bl-prose a { color: var(--royal); border-bottom: 1px solid rgba(83, 29, 144, .35); transition: border-color .3s; }
.bl-prose a:hover { border-bottom-color: var(--royal); }
.bl-pull { margin: 2.3em 0; padding: .1em 0 .1em 24px; border-left: 2px solid var(--lav-2); font: 400 clamp(21px, 2vw, 26px)/1.35 var(--serif); color: var(--purple); text-wrap: balance; }
.bl-pull small { display: block; margin-top: 10px; font: 400 11px/1 var(--sans); letter-spacing: .18em; text-transform: uppercase; color: var(--muted); }
.bl-note { margin: 2.1em 0; padding: 20px 24px; background: var(--pearl-2); border-left: 2px solid var(--purple); border-radius: 0 12px 12px 0; }
.bl-note__label { margin: 0 0 8px; font: 500 12px/1 var(--serif); letter-spacing: .18em; text-transform: uppercase; color: var(--purple); }
.bl-note p:last-child { margin-bottom: 0; }
.bl-figure { margin: 2.5em 0; }
.bl-figure svg { width: 100%; height: auto; }
.bl-figure figcaption, .bl-cap { margin-top: 12px; font: 300 13px/1.5 var(--sans); color: var(--muted); }
.bl-cap b { font-weight: 500; color: var(--purple); }
.bl-table-wrap { margin: 2.1em 0; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.bl-table { width: 100%; border-collapse: collapse; font-size: 15.5px; line-height: 1.45; }
.bl-table th { text-align: left; padding: 0 14px 12px 0; font: 500 12px/1.4 var(--serif); letter-spacing: .14em; text-transform: uppercase; color: var(--purple); border-bottom: 1px solid var(--purple); vertical-align: bottom; }
.bl-table td { padding: 13px 14px 13px 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
.bl-table td:first-child { font-weight: 500; color: var(--purple); }
.bl-table tr:last-child td { border-bottom-color: var(--purple); }
.bl-table--stripe tbody tr:nth-child(even) td { background: rgba(63, 23, 112, .035); }
.bl-steps { list-style: none; counter-reset: bl; margin: 2em 0; padding: 0; }
.bl-steps li { counter-increment: bl; position: relative; padding: 18px 0 18px 62px; border-top: 1px solid var(--rule); }
.bl-steps li:last-child { border-bottom: 1px solid var(--rule); }
.bl-steps li:before { content: counter(bl, decimal-leading-zero); position: absolute; left: 0; top: 19px; font: 400 15px/1.5 var(--serif); letter-spacing: .08em; color: var(--lav-2); }
.bl-steps b { display: block; font-weight: 500; color: var(--purple); margin-bottom: 3px; }
.bl-next { margin: 3em 0 0; padding: 28px 30px 24px; border-radius: 16px; background: var(--purple); color: var(--pearl); }
.bl-next h2 { margin: 0 0 14px; font: 500 21px/1.2 var(--serif); }
.bl-next ol { margin: 0; padding-left: 1.3em; }
.bl-next li { margin-bottom: .5em; }
.bl-next li::marker { font-family: var(--serif); color: var(--lav-2); }
.bl-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 2.4em; }
.bl-tags span { font: 400 11px/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--purple); padding: 8px 12px; border: 1px solid var(--rule); border-radius: 20px; }

/* skim mode: headings, first paragraph of each section, figures and tools stay; the rest folds away */
.is-skim .bl-prose > p:not(.bl-lead):not(h2 + p), .is-skim .bl-prose > ul, .is-skim .bl-prose > h3 + p, .is-skim .bl-prose > .bl-pull { display: none; }
.is-skim .bl-prose > h3 { margin-top: 1em; }
.bl-skim-note { display: none; margin: 0 0 22px; padding: 12px 16px; border-radius: 10px; background: var(--pearl-2); font: 300 14px/1.5 var(--sans); color: var(--muted); }
.is-skim .bl-skim-note { display: block; }

/* ---------- CAD viewport (cad.js) */
.bl-viewport { margin: 2.5em 0; border-radius: 16px; overflow: hidden; background: linear-gradient(160deg, var(--royal), var(--night)); color: var(--pearl); }
.bl-viewport__bar { display: flex; justify-content: space-between; gap: 12px; padding: 14px 18px; border-bottom: 1px solid var(--rule-dark); font: 400 11px/1.3 var(--sans); letter-spacing: .18em; text-transform: uppercase; color: rgba(244, 243, 246, .6); }
.bl-viewport__bar b { font-weight: 500; color: var(--pearl); }
.bl-viewport canvas { width: 100%; aspect-ratio: 16 / 10; }
.bl-viewport__ctl { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; padding: 12px 18px 16px; border-top: 1px solid var(--rule-dark); }
.bl-viewport__ctl span { flex: 1; font: 300 12.5px/1.4 var(--sans); color: rgba(244, 243, 246, .55); }
.bl-btn { border: 1px solid rgba(244, 243, 246, .35); background: none; color: var(--pearl); padding: 8px 14px; border-radius: 30px; font: 400 12px/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; cursor: pointer; transition: background .3s, color .3s, border-color .3s; }
.bl-btn:hover { border-color: var(--pearl); }
.bl-btn[aria-pressed="true"] { background: var(--pearl); color: var(--purple); border-color: var(--pearl); }

/* ---------- ray simulator */
.bl-sim { margin: 2.5em 0; border-radius: 16px; overflow: hidden; background: linear-gradient(160deg, var(--royal), var(--night)); color: var(--pearl); }
.bl-sim__bar { padding: 14px 18px; border-bottom: 1px solid var(--rule-dark); font: 400 11px/1.3 var(--sans); letter-spacing: .18em; text-transform: uppercase; color: rgba(244, 243, 246, .6); }
.bl-sim__bar b { font-weight: 500; color: var(--pearl); }
.bl-sim svg { width: 100%; height: auto; }
.bl-sim__ctl { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 24px; padding: 6px 18px 18px; border-top: 1px solid var(--rule-dark); }
.bl-sim__ctl label { display: grid; gap: 6px; font: 400 11px/1.3 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: rgba(244, 243, 246, .6); }
.bl-sim__ctl label output { font: 400 22px/1 var(--serif); letter-spacing: .04em; color: var(--pearl); text-transform: none; }
.bl-sim__verdict { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; padding-top: 6px; font: 300 15px/1.4 var(--sans); }
.bl-sim__verdict b { display: inline-block; font: 500 12px/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; padding: 8px 12px; border-radius: 20px; background: rgba(244, 243, 246, .14); }
.bl-sim__verdict b.is-good { background: var(--pearl); color: var(--purple); }
input[type="range"].bl-range { -webkit-appearance: none; appearance: none; width: 100%; height: 22px; background: none; margin: 0; cursor: pointer; }
input[type="range"].bl-range::-webkit-slider-runnable-track { height: 1px; background: rgba(244, 243, 246, .4); }
input[type="range"].bl-range::-moz-range-track { height: 1px; background: rgba(244, 243, 246, .4); }
input[type="range"].bl-range::-webkit-slider-thumb { -webkit-appearance: none; width: 18px; height: 18px; margin-top: -8.5px; border-radius: 50%; background: var(--pearl); border: 4px solid var(--royal); box-shadow: 0 0 0 1px rgba(244, 243, 246, .6); }
input[type="range"].bl-range::-moz-range-thumb { width: 10px; height: 10px; border-radius: 50%; background: var(--pearl); border: 4px solid var(--royal); box-shadow: 0 0 0 1px rgba(244, 243, 246, .6); }
.bl-light input[type="range"].bl-range::-webkit-slider-runnable-track { background: rgba(63, 23, 112, .35); }
.bl-light input[type="range"].bl-range::-moz-range-track { background: rgba(63, 23, 112, .35); }
.bl-light input[type="range"].bl-range::-webkit-slider-thumb { background: var(--purple); border-color: var(--pearl); box-shadow: 0 0 0 1px var(--purple); }
.bl-light input[type="range"].bl-range::-moz-range-thumb { background: var(--purple); border-color: var(--pearl); box-shadow: 0 0 0 1px var(--purple); }

/* ---------- interactive checklist */
.bl-check { margin: 2.5em 0; border: 1px solid var(--rule); border-radius: 16px; background: #fff; overflow: hidden; }
.bl-check__head { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 16px; padding: 22px 24px; border-bottom: 1px solid var(--rule); }
.bl-check__head h3 { margin: 0 0 4px; font: 500 20px/1.2 var(--serif); color: var(--purple); }
.bl-check__head p { margin: 0; font: 300 14px/1.4 var(--sans); color: var(--muted); }
.bl-check__ring { position: relative; width: 64px; height: 64px; }
.bl-check__ring svg { width: 64px; height: 64px; transform: rotate(-90deg); }
.bl-check__ring circle { fill: none; stroke-width: 3; }
.bl-check__ring .track { stroke: var(--pearl-2); }
.bl-check__ring .fill { stroke: var(--purple); stroke-linecap: round; stroke-dasharray: 176; stroke-dashoffset: 176; transition: stroke-dashoffset .8s var(--ease); }
.bl-check__ring output { position: absolute; inset: 0; display: grid; place-items: center; font: 400 15px/1 var(--serif); color: var(--purple); }
.bl-check__list { list-style: none; margin: 0; padding: 6px 0; }
.bl-check__item { display: grid; grid-template-columns: 22px 1fr; gap: 16px; align-items: start; padding: 14px 24px; cursor: pointer; transition: background .3s; }
.bl-check__item:hover { background: rgba(63, 23, 112, .035); }
.bl-check__item input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.bl-check__box { width: 22px; height: 22px; margin-top: 3px; border: 1px solid var(--purple); border-radius: 6px; display: grid; place-items: center; transition: background .3s; }
.bl-check__box svg { width: 12px; height: 12px; stroke: var(--pearl); fill: none; stroke-width: 2; opacity: 0; transition: opacity .2s; }
.bl-check__item input:checked ~ .bl-check__box { background: var(--purple); }
.bl-check__item input:checked ~ .bl-check__box svg { opacity: 1; }
.bl-check__item input:focus-visible ~ .bl-check__box { outline: 2px solid var(--royal); outline-offset: 2px; }
.bl-check__item span:last-child { font-size: 16px; line-height: 1.5; }
.bl-check__item b { font-weight: 500; color: var(--purple); }
.bl-check__item input:checked ~ span:last-child { color: var(--muted); }
.bl-check__foot { padding: 18px 24px 22px; border-top: 1px solid var(--rule); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; font: 300 14.5px/1.4 var(--sans); color: var(--muted); }
.bl-check__send { display: none; padding: 12px 20px; border-radius: 30px; background: var(--purple); color: var(--pearl); font: 500 12px/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; }
.bl-check.is-done .bl-check__send { display: inline-block; }

/* ---------- cost model */
.bl-cost { margin: 2.5em 0; border: 1px solid var(--rule); border-radius: 16px; background: #fff; padding: 24px 26px 22px; }
.bl-cost__head { display: flex; justify-content: space-between; gap: 16px; align-items: baseline; margin-bottom: 18px; }
.bl-cost__head h3 { margin: 0; font: 500 20px/1.2 var(--serif); color: var(--purple); }
.bl-cost__head span { font: 300 13px/1.4 var(--sans); color: var(--muted); }
.bl-cost__ctl { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 16px 22px; align-items: end; margin-bottom: 22px; }
.bl-cost__ctl label { display: grid; gap: 8px; font: 400 11px/1.3 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--muted); }
.bl-cost__ctl label output { font: 400 24px/1 var(--serif); color: var(--purple); text-transform: none; letter-spacing: .04em; }
.bl-seg { display: inline-flex; padding: 3px; border: 1px solid var(--rule); border-radius: 30px; }
.bl-seg button { border: 0; background: none; padding: 7px 12px; white-space: nowrap; border-radius: 30px; font: 400 12px/1 var(--sans); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); cursor: pointer; transition: background .3s, color .3s; }
.bl-seg button[aria-pressed="true"] { background: var(--purple); color: var(--pearl); }
.bl-cost__bars { display: grid; gap: 14px; }
.bl-cost__bar { display: grid; grid-template-columns: 110px 1fr 70px; gap: 14px; align-items: center; font: 400 13px/1.3 var(--sans); }
.bl-cost__bar > span:first-child { letter-spacing: .1em; text-transform: uppercase; color: var(--purple); }
.bl-cost__bar i { display: block; height: 14px; border-radius: 7px; background: var(--lav); transform-origin: left; transition: transform .8s var(--ease); }
.bl-cost__bar--render i { background: var(--purple); }
.bl-cost__bar output { text-align: right; font: 400 15px/1 var(--serif); color: var(--purple); }
.bl-cost__out { margin: 20px 0 0; padding-top: 16px; border-top: 1px solid var(--rule); font: 300 15.5px/1.5 var(--sans); }
.bl-cost__out b { font-weight: 500; color: var(--purple); }

/* ---------- call to action */
.bl-cta { padding: clamp(64px, 9vw, 120px) 0; }
.bl-cta__wire { position: absolute; right: -6%; top: 50%; width: 62%; max-width: 900px; transform: translateY(-50%) rotate(-6deg); opacity: .28; pointer-events: none; z-index: 0; }
.bl-cta__inner { position: relative; z-index: 1; max-width: 620px; }
.bl-cta h2 { margin: 16px 0 14px; font: 400 clamp(30px, 3.6vw, 48px)/1.1 var(--serif); text-wrap: balance; }
.bl-cta p { margin: 0 0 24px; color: rgba(244, 243, 246, .82); }
.bl-cta__btn { display: inline-flex; align-items: center; gap: 12px; padding: 16px 24px; border-radius: 40px; background: var(--pearl); color: var(--purple); font: 500 13px/1 var(--sans); letter-spacing: .1em; text-transform: uppercase; transition: transform .5s var(--ease), background .3s; }
.bl-cta__btn:hover { transform: translateY(-2px); background: #fff; }
.bl-cta__btn svg { width: 14px; height: 14px; }
.bl-cta__note { margin-top: 16px; font: 400 11.5px/1.6 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: rgba(244, 243, 246, .55); }

/* ---------- cards, footer */
.bl-more { padding: clamp(48px, 7vw, 90px) 0; }
.bl-more__head { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; margin-bottom: 26px; }
.bl-more__head h2 { margin: 0; font: 500 clamp(22px, 2.4vw, 30px)/1.2 var(--serif); color: var(--purple); }
.bl-more__head a { font: 400 12px/1 var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--purple); }
.bl-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.bl-card { display: grid; grid-template-rows: auto 1fr; border: 1px solid var(--rule); border-radius: 16px; overflow: hidden; background: #fff; transition: transform .6s var(--ease), box-shadow .6s; }
.bl-card:hover { transform: translateY(-4px); box-shadow: 0 30px 50px rgba(42, 14, 78, .14); }
.bl-thumb { position: relative; aspect-ratio: 16 / 9; background: var(--pearl-2); overflow: hidden; }
.bl-thumb img { position: absolute; inset: 8%; width: 84%; height: 84%; object-fit: contain; transition: opacity .7s, transform .9s var(--ease); }
.bl-thumb img.render { opacity: 0; }
.bl-card:hover .bl-thumb img.render, .bl-post:hover .bl-thumb img.render { opacity: 1; }
.bl-card:hover .bl-thumb img.wire, .bl-post:hover .bl-thumb img.wire { opacity: 0; }
.bl-card:hover .bl-thumb img, .bl-post:hover .bl-thumb img { transform: scale(1.03); }
.bl-thumb__tag { position: absolute; left: 12px; bottom: 10px; font: 400 10.5px/1 var(--sans); letter-spacing: .18em; text-transform: uppercase; color: rgba(63, 23, 112, .55); }
.bl-card__body { padding: 20px 24px 24px; }
.bl-card__body .bl-eyebrow { color: var(--purple); opacity: .7; }
.bl-card__body h3 { margin: 12px 0 10px; font: 500 21px/1.25 var(--serif); color: var(--purple); text-wrap: balance; }
.bl-card__body p { margin: 0 0 16px; font-size: 15.5px; color: var(--muted); }
.bl-card__body .bl-meta { color: var(--muted); font-size: 11px; }
.bl-footer { background: var(--night); color: var(--pearl); padding: 40px 0 34px; }
.bl-footer__grid { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 18px 30px; }
.bl-footer__brand { display: inline-flex; align-items: center; gap: 10px; }
.bl-footer__brand .vv-mark__svg { width: 20px; height: 20px; }
.bl-footer__brand .vv-brand__svg { height: 12px; width: auto; }
.bl-footer__links { display: flex; flex-wrap: wrap; gap: 6px 22px; font: 400 12px/1 var(--sans); letter-spacing: .16em; text-transform: uppercase; }
.bl-footer__links a { opacity: .8; } .bl-footer__links a:hover { opacity: 1; }
.bl-footer__copy { width: 100%; margin-top: 8px; font: 300 13px/1.5 var(--sans); color: rgba(244, 243, 246, .6); }

/* ---------- journal index */
.bl-index-hero { padding: calc(var(--nav-h) + clamp(44px, 8vw, 96px)) 0 clamp(56px, 8vw, 100px); }
.bl-index-hero__grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(28px, 5vw, 80px); align-items: center; }
.bl-index-hero h1 { margin: 20px 0 18px; font: 400 clamp(40px, 5.6vw, 76px)/1 var(--serif); letter-spacing: .01em; text-wrap: balance; }
.bl-index-hero p { margin: 0; max-width: 30em; font: 300 clamp(17px, 1.5vw, 20.5px)/1.5 var(--sans); color: rgba(244, 243, 246, .78); }
.bl-index-hero .bl-meta { margin-top: 26px; color: rgba(244, 243, 246, .6); }
.bl-index-hero p.bl-turn__hint { font: 300 12.5px/1.4 var(--sans); letter-spacing: .04em; color: rgba(244, 243, 246, .55); max-width: none; }
.bl-list { list-style: none; margin: 0; padding: clamp(40px, 6vw, 80px) 0 0; }
.bl-list > li + li { margin-top: clamp(24px, 4vw, 48px); }
.bl-post { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 5vw, 72px); align-items: center; }
.bl-post--flip .bl-post__art { order: 2; }
.bl-post__art .bl-thumb { aspect-ratio: 4 / 3; border-radius: 18px; border: 1px solid var(--rule); }
.bl-post__n { display: flex; align-items: baseline; gap: 16px; font: 400 12px/1.4 var(--sans); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.bl-post__n b { font: 400 30px/1 var(--serif); letter-spacing: .04em; color: var(--purple); }
.bl-post h2 { margin: 16px 0 14px; font: 500 clamp(26px, 2.9vw, 40px)/1.12 var(--serif); color: var(--purple); text-wrap: balance; transition: color .3s; }
.bl-post:hover h2 { color: var(--royal); }
.bl-post p { margin: 0 0 18px; max-width: 34em; color: var(--muted); }
.bl-post__brief { list-style: none; margin: 0 0 20px; padding: 0; display: grid; gap: 6px; }
.bl-post__brief li { position: relative; padding-left: 20px; font-size: 15.5px; line-height: 1.45; color: var(--ink); }
.bl-post__brief li:before { content: ""; position: absolute; left: 0; top: .6em; width: 9px; height: 1px; background: var(--purple); }
.bl-post .bl-meta { color: var(--muted); }
.bl-post__go { display: inline-flex; align-items: center; gap: 10px; margin-top: 18px; padding: 12px 20px; border: 1px solid var(--purple); border-radius: 30px; font: 500 12px/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--purple); transition: background .3s, color .3s; }
.bl-post:hover .bl-post__go { background: var(--purple); color: var(--pearl); }
.bl-index-note { margin: clamp(48px, 7vw, 90px) 0 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.bl-index-note div { padding: 24px 26px; border: 1px solid var(--rule); border-radius: 14px; }
.bl-index-note .bl-eyebrow { color: var(--purple); opacity: .7; }
.bl-index-note h3 { margin: 10px 0 8px; font: 500 19px/1.3 var(--serif); color: var(--purple); }
.bl-index-note p { margin: 0; font-size: 15.5px; color: var(--muted); }
.bl-index-note a { color: var(--royal); border-bottom: 1px solid rgba(83, 29, 144, .35); }

/* ---------- responsive */
@media (max-width: 1024px) {
  .bl-article__grid { grid-template-columns: minmax(0, 640px); }
  .bl-side { position: static; margin-bottom: 8px; }
  .bl-toc ol { border-left: 0; display: flex; flex-wrap: wrap; gap: 6px 8px; }
  .bl-toc li a { display: inline-flex; gap: 8px; padding: 8px 13px; border: 1px solid var(--rule); border-radius: 20px; margin: 0; font-size: 13px; }
  .bl-toc li a.is-active { border-color: var(--purple); }
  .bl-side__note { display: none; }
  .bl-brief__card { grid-template-columns: 1fr; gap: 14px; }
}
@media (max-width: 720px) {
  body { font-size: 17px; }
  .bl-nav__right { display: none; }
  .bl-hero { padding-bottom: 84px; }
  .bl-turn__tag { display: none; }
  .bl-turn__labels { font-size: 10px; }
  .bl-hero__grid, .bl-index-hero__grid { grid-template-columns: 1fr; }
  .bl-hero__art, .bl-index-hero__art { order: -1; margin: 0 -4px; }
  .bl-hero h1 { margin-top: 14px; }
  .bl-brief__card { padding: 22px 20px; border-radius: 14px; }
  .bl-post { grid-template-columns: 1fr; gap: 16px; }
  .bl-post--flip .bl-post__art { order: 0; }
  .bl-post__n b { font-size: 24px; }
  .bl-next { padding: 22px 20px 18px; }
  .bl-note { padding: 18px 18px; }
  .bl-pull { padding-left: 16px; }
  .bl-steps li { padding-left: 44px; }
  .bl-table { font-size: 14.5px; min-width: 520px; }
  .bl-sim__ctl, .bl-cost__ctl { grid-template-columns: 1fr; }
  .bl-cost__bar { grid-template-columns: 90px 1fr 56px; gap: 10px; }
  .bl-cta__wire { width: 120%; right: -30%; opacity: .16; }
  .bl-check__item { padding: 12px 18px; gap: 12px; }
  .bl-check__head, .bl-check__foot { padding-left: 18px; padding-right: 18px; }
}