/* samdodsworth.com · solutions. Built on the site's tokens (site.css, tune-boot.js), so day and night
   carry through. Explainer grammar after the course-video study: every graphic is a card with a title
   and a small honest caption, monochrome with the one accent marking the subject.
   Motion: things rise out of a soft blur when they enter, graphics then build in order. Nothing is
   hidden unless script is running (html.sol-js), and reduced motion shows every end state at once. */

.page-sol {
  --clay-t: color-mix(in oklab, var(--sc-surface) 92%, var(--sc-ink));
  --clay-l: color-mix(in oklab, var(--sc-surface) 80%, var(--sc-ink));
  --clay-r: color-mix(in oklab, var(--sc-surface) 66%, var(--sc-ink));
  --clay-g: color-mix(in oklab, var(--sc-canvas) 94%, var(--sc-ink));
  --acc-t: color-mix(in oklab, var(--sc-accent) 70%, var(--sc-surface));
  --acc-l: var(--sc-accent);
  --acc-r: color-mix(in oklab, var(--sc-accent) 78%, black);
  --card: var(--sc-surface);
  --line: var(--sc-hairline-strong);
  --soft: var(--sc-ink-soft);
  --w-max: 76rem;
}
.page-sol main { overflow-x: clip; }
.page-sol .bar { background: color-mix(in oklab, var(--sc-canvas) 82%, transparent); -webkit-backdrop-filter: blur(14px) saturate(1.2); backdrop-filter: blur(14px) saturate(1.2);
  border-bottom: 1px solid var(--sc-hairline); transition: background-color 300ms, color 240ms var(--ease-out); }

/* ------------------------------------------------------------------ reveal */
.sol-js [data-rv] { opacity: 0; transform: translateY(18px); filter: blur(6px);
  transition: opacity 900ms var(--ease-out), transform 900ms var(--ease-out), filter 900ms var(--ease-out); }
.sol-js [data-rv].is-in { opacity: 1; transform: none; filter: none; }

/* ----------------------------------------------------------------- solution */
.sol { padding: clamp(72px, 12vh, 140px) var(--pad-x) clamp(48px, 8vh, 96px); border-top: 1px solid var(--sc-hairline); scroll-margin-top: var(--bar-h); }
.sol:nth-of-type(even) { background: var(--paper-2); }
.sol__head { max-width: var(--w-max); margin: 0 auto; display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(28px, 5vw, 80px); align-items: center; }
.sol h2 { margin: 22px 0 0; font: 500 clamp(2.4rem, 5.4vw, 4.8rem)/1 var(--sc-font-display); letter-spacing: -0.045em; text-wrap: balance; }
.sol__who { margin: 18px 0 0; font: 400 var(--sc-t-xs)/1.4 var(--sc-font-mono); color: var(--soft); }
.sol__sym { margin: 18px 0 0; max-width: 46ch; font-size: var(--sc-t-lg); line-height: 1.5; color: var(--soft); }
.mini-race { display: inline-flex; gap: 3px; }
.mini-race span { display: grid; place-items: center; width: 26px; height: 22px; font: 500 11px/1 var(--sc-font-mono); color: var(--soft);
  border: 1px solid var(--line); border-radius: 5px; }
.mini-race span.is-on { background: var(--sc-ink); color: var(--sc-canvas); border-color: var(--sc-ink); }
.sol__art { min-width: 0; }

/* ------------------------------------------------------------- iso scenes */
.scene { display: block; width: 100%; height: auto; overflow: visible; }
.scene .iso-t { fill: var(--clay-t); } .scene .iso-l { fill: var(--clay-l); } .scene .iso-r { fill: var(--clay-r); }
.scene polygon { stroke: color-mix(in oklab, var(--sc-ink) 10%, transparent); stroke-width: 0.5; stroke-linejoin: round; }
.scene .iso-ground { fill: var(--clay-g); stroke: var(--sc-hairline); stroke-dasharray: 3 4; }
.scene .roof-b { fill: var(--clay-r); }
.scene .panel { fill: none; stroke: none; }
.scene .is-lit .iso-t, .scene .is-lit.iso .iso-t { fill: var(--acc-t); }
.scene .is-lit .iso-l, .scene .is-lit.iso .iso-l { fill: var(--acc-l); }
.scene .is-lit .iso-r, .scene .is-lit.iso .iso-r, .scene .is-lit .roof-b { fill: var(--acc-r); }
.scene .is-lit .panel { fill: color-mix(in oklab, var(--sc-accent) 55%, black); stroke: var(--acc-t); stroke-width: 0.6; }
.scene .target { fill: none; stroke: var(--sc-accent); stroke-width: 1.2; stroke-dasharray: 2 5; }
.scene .screen { fill: var(--sc-accent); }
.scene .tray .iso-t { fill: var(--clay-r); }
.scene .tick { fill: none; stroke: var(--sc-accent-ink); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.scene .battery .iso-l { fill: var(--sc-ink); } .scene .battery .iso-r { fill: color-mix(in oklab, var(--sc-ink) 80%, black); } .scene .battery .iso-t { fill: var(--sc-accent); }
.scene .arc.reply { stroke-dasharray: 0.04 0.03; animation: sol-march-r 1.6s linear infinite; }
@keyframes sol-march-r { to { stroke-dashoffset: -0.07; } }
.scene .arc { fill: none; stroke: var(--sc-accent); stroke-width: 1.4; stroke-dasharray: 1; stroke-dashoffset: 0; }
.scene .nb .roof { transition: fill 600ms var(--ease-out); }

/* scene motion, gated so the still frame is the finished picture */
.sol-js .sol__art:not(.is-in) .house.is-lit { opacity: 0.25; }
.sol-js .sol__art .house.is-lit { transition: opacity 700ms var(--ease-out) calc(var(--i) * 120ms + 300ms); }
.sol-js .sol__art:not(.is-in) .arc { stroke-dashoffset: 1; }
.sol-js .sol__art .arc { transition: stroke-dashoffset 1100ms var(--ease-out) calc(var(--i) * 160ms + 500ms); }
.sol__art.is-in .nb .roof { fill: var(--acc-t); transition-delay: calc(var(--i) * 160ms + 1300ms); }
.sol__art .target { animation: sol-march 2.4s linear infinite; }
.sol__art .env.is-lit { animation: sol-float 3.2s var(--ease-out) infinite alternate; }
.sol__art .env.is-lit .iso-t { fill: var(--acc-t); } .sol__art .env.is-lit .iso-l { fill: var(--acc-l); } .sol__art .env.is-lit .iso-r { fill: var(--acc-r); }
.sol__art .signed { animation: sol-float 3.6s var(--ease-out) infinite alternate; }
.scene .shadow { fill: color-mix(in oklab, var(--sc-ink) 14%, transparent); stroke: none; }
.sol__art .screen { animation: sol-glow 2.4s ease-in-out infinite; }
@keyframes sol-float { from { transform: translateY(0); } to { transform: translateY(-9px); } }
@keyframes sol-march { to { stroke-dashoffset: -14; } }
@keyframes sol-glow { 50% { opacity: 0.7; } }

/* -------------------------------------------------------------------- steps */
.steps { list-style: none; max-width: var(--w-max); margin: clamp(56px, 9vh, 104px) auto 0; padding: 0; position: relative; display: grid; gap: clamp(48px, 8vh, 88px); }
.steps::before { content: ""; position: absolute; left: 21px; top: 8px; bottom: 8px; width: 1px; background: var(--sc-hairline); }
.step__g { display: grid; gap: 20px; min-width: 0; }
.step { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: clamp(24px, 4vw, 64px); align-items: start; position: relative; }
.step__t { position: sticky; top: calc(var(--bar-h) + 32px); padding-left: 64px; }
.step__n { position: absolute; left: 0; top: -6px; display: grid; place-items: center; width: 43px; height: 43px; margin: 0; border-radius: 50%;
  background: var(--sc-canvas); border: 1px solid var(--line); font: 500 var(--sc-t-xs)/1 var(--sc-font-mono);
  transition: background-color 500ms var(--ease-out), color 500ms var(--ease-out), border-color 500ms; }
.sol:nth-of-type(even) .step__n { background: var(--paper-2); }
.step.is-in .step__n { background: var(--sc-accent); color: var(--sc-accent-ink); border-color: var(--sc-accent); }
.step h3 { margin: 0; font: 500 var(--sc-t-xl)/1.1 var(--sc-font-display); letter-spacing: -0.03em; }
.step__t p:not(.step__n) { margin: 12px 0 0; max-width: 38ch; color: var(--soft); line-height: 1.55; }

/* ---------------------------------------------------------------- the card */
.gfx { margin: 0; min-width: 0; padding: clamp(18px, 2.6vw, 32px); background: var(--card); border: 1px solid var(--sc-hairline);
  border-radius: 20px; box-shadow: 0 30px 60px -44px var(--shadow); }
.gfx figcaption { display: grid; gap: 4px; margin-bottom: clamp(18px, 3vh, 28px); }
.gfx figcaption b { font: 500 var(--sc-t-lg)/1.1 var(--sc-font-display); letter-spacing: -0.02em; }
.gfx figcaption span { font: 400 var(--sc-t-xs)/1.4 var(--sc-font-mono); color: var(--soft); }
.gfx__note { margin: 20px 0 0; padding-top: 16px; border-top: 1px solid var(--sc-hairline); color: var(--soft); font-size: var(--sc-t-sm); line-height: 1.55; }

/* 01 · RACE row */
.rr { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px 4px; }
.rr__c { display: grid; align-content: start; gap: 8px; min-width: 0; position: relative; }
.rr__chev { display: grid; place-items: center; height: 64px; margin-bottom: 6px; background: color-mix(in oklab, var(--sc-ink) 8%, var(--card)); color: var(--soft);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 50%, calc(100% - 14px) 100%, 0 100%, 14px 50%);
  transition: background-color 500ms var(--ease-out), color 500ms var(--ease-out); }
.rr__c:first-child .rr__chev { clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 50%, calc(100% - 14px) 100%, 0 100%); border-radius: 8px 0 0 8px; }
.rr__chev b { font: 500 22px/1 var(--sc-font-display); } .rr__chev i { font: 400 10.5px/1 var(--sc-font-mono); font-style: normal; margin-top: -10px; }
.rr__v { font: 500 clamp(1.5rem, 2.6vw, 2.3rem)/1 var(--sc-font-display); letter-spacing: -0.04em; font-variant-numeric: tabular-nums; }
.rr__l { font-size: var(--sc-t-sm); line-height: 1.3; }
.rr__r { font: 400 11px/1.35 var(--sc-font-mono); color: var(--soft); }
.rr__m { position: relative; display: block; height: 6px; margin-top: 4px; border-radius: 3px; background: color-mix(in oklab, var(--sc-ink) 10%, var(--card)); }
.rr__m i { position: absolute; inset: 0 auto 0 0; width: calc(var(--r) * 100%); border-radius: 3px; background: color-mix(in oklab, var(--sc-ink) 45%, var(--card));
  transform-origin: left; transition: transform 1000ms var(--ease-out) calc(var(--i) * 120ms + 300ms); }
.rr__m b { position: absolute; top: -3px; bottom: -3px; left: 80%; width: 2px; border-radius: 1px; background: var(--sc-ink); }
.rr__c.is-hot .rr__m i { background: var(--sc-accent); }
.sol-js .gfx--race:not(.is-in) .rr__m i { transform: scaleX(0); }
.rr__tag { justify-self: start; margin-top: 4px; padding: 5px 9px; border-radius: 999px; background: var(--sc-accent); color: var(--sc-accent-ink); font: 500 11px/1 var(--sc-font-mono); }
.is-in .rr__c.is-hot .rr__chev, .rr__c.is-hot .rr__chev { background: var(--sc-accent); color: var(--sc-accent-ink); }
.sol-js .gfx--race:not(.is-in) .rr__c.is-hot .rr__chev { background: color-mix(in oklab, var(--sc-ink) 8%, var(--card)); color: var(--soft); }
.sol-js .gfx--race .rr__chev { transition-delay: 900ms; }
.sol-js .gfx--race:not(.is-in) .rr__tag { opacity: 0; transform: translateY(6px); }
.sol-js .gfx--race .rr__tag { transition: opacity 500ms var(--ease-out) 1200ms, transform 500ms var(--ease-out) 1200ms; }

/* 02 · goal tree */
.tg { margin: 0 auto; width: fit-content; max-width: 100%; padding: 14px 22px; border-radius: 14px; background: var(--sc-ink); color: var(--sc-canvas);
  font: 500 var(--sc-t-base)/1.3 var(--sc-font-display); text-align: center; text-wrap: balance; }
.tl { display: block; width: 100%; height: 34px; overflow: visible; }
.tl path { fill: none; stroke: var(--line); stroke-width: 1; vector-effect: non-scaling-stroke; }
.tl path.on { stroke: var(--sc-accent); stroke-width: 1.6; }
.tws, .tas { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.tws { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.tas { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.tws li, .tas li { min-width: 0; padding: 11px 12px; border-radius: 12px; border: 1px solid var(--line); font-size: var(--sc-t-sm); line-height: 1.3; text-align: center; color: var(--soft);
  transition: background-color 500ms var(--ease-out), color 500ms var(--ease-out), border-color 500ms, opacity 600ms var(--ease-out), transform 600ms var(--ease-out); }
.tws li.is-on { border-color: var(--sc-accent); color: var(--sc-ink); background: color-mix(in oklab, var(--sc-accent) 12%, var(--card)); }
.tas li { color: var(--sc-ink); border-style: dashed; text-align: left; }
.sol-js .gfx--tree .tl { transition: clip-path 700ms var(--ease-out) 300ms; }
.sol-js .gfx--tree:not(.is-in) .tl { clip-path: inset(0 0 100% 0); }
.sol-js .gfx--tree .tl ~ .tl { transition-delay: 1200ms; }
.sol-js .gfx--tree:not(.is-in) .tws li, .sol-js .gfx--tree:not(.is-in) .tas li { opacity: 0; transform: translateY(8px); }
.sol-js .gfx--tree .tws li { transition-delay: calc(var(--i) * 90ms + 600ms); }
.sol-js .gfx--tree .tas li { transition-delay: calc(var(--i) * 90ms + 1500ms); }
.sol-js .gfx--tree:not(.is-in) .tws li.is-on { background: transparent; border-color: var(--line); }

/* 03 · system flow + typed prompt */
.fl { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 22px; position: relative; }
.fn { position: relative; display: grid; gap: 6px; align-content: start; min-width: 0; min-height: 96px; padding: 12px; border: 1px solid var(--line); border-radius: 14px;
  font-size: var(--sc-t-sm); line-height: 1.3; background: var(--card); transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out); }
.fn small { font: 400 10.5px/1 var(--sc-font-mono); color: var(--soft); }
.fn--claude { background: var(--sc-accent); color: var(--sc-accent-ink); border-color: var(--sc-accent); }
.fn--claude small { color: inherit; opacity: 0.75; }
.fn--human { border-style: dashed; }
.fn + .fn::before { content: ""; position: absolute; left: -23px; top: 50%; width: 22px; height: 1px; background: var(--line); }
.fn + .fn::after { content: ""; position: absolute; left: -23px; top: calc(50% - 2.5px); width: 6px; height: 6px; border-radius: 50%; background: var(--sc-accent);
  animation: sol-pass 2.2s var(--ease-out) infinite; animation-delay: calc(var(--i) * 0.35s); }
@keyframes sol-pass { 0% { transform: translateX(0); opacity: 0; } 15% { opacity: 1; } 85% { opacity: 1; } 100% { transform: translateX(17px); opacity: 0; } }
.sol-js .gfx--flow:not(.is-in) .fn { opacity: 0; transform: translateX(-10px); }
.sol-js .gfx--flow .fn { transition-delay: calc(var(--i) * 140ms + 200ms); }
.pr { margin-top: 22px; border-radius: 14px; background: #0d0c15; color: #ecebf3; border: 1px solid var(--sc-hairline-strong); overflow: hidden; }
.pr__h { display: flex; align-items: center; gap: 6px; margin: 0; padding: 10px 14px; border-bottom: 1px solid rgba(236, 235, 243, 0.12); }
.pr__h i { width: 8px; height: 8px; border-radius: 50%; background: rgba(236, 235, 243, 0.25); }
.pr__h span { margin-left: 8px; font: 400 11px/1 var(--sc-font-mono); opacity: 0.7; }
.pr__t { margin: 0; padding: 16px 16px 18px; min-height: 7.6em; font: 400 13px/1.6 var(--sc-font-mono); }
.pr__t.is-typing::after { content: ""; display: inline-block; width: 7px; height: 1.05em; margin-left: 2px; vertical-align: -0.15em; background: #9d97ff; animation: sol-caret 1s steps(1) infinite; }
@keyframes sol-caret { 50% { opacity: 0; } }

/* 04 · deploy */
.dt { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.dt li { display: grid; grid-template-columns: 36px minmax(0, 9rem) minmax(0, 1fr) auto; gap: 14px; align-items: center; padding: 14px 0; border-top: 1px solid var(--sc-hairline);
  transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out); }
.dt li:first-child { border-top: 0; }
.dt__i { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 10px; background: color-mix(in oklab, var(--sc-accent) 14%, var(--card)); color: var(--sc-accent); }
.dt__i svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.dt__w { font: 400 var(--sc-t-xs)/1.3 var(--sc-font-mono); color: var(--soft); }
.dt__x { font-size: var(--sc-t-sm); }
.dt__k { font: 400 10.5px/1 var(--sc-font-mono); padding: 6px 8px; border-radius: 999px; border: 1px solid var(--line); color: var(--soft); white-space: nowrap; }
.ft { margin-top: 18px; padding: 14px 16px; border-radius: 14px; border: 1px dashed var(--line); font: 400 12.5px/1.7 var(--sc-font-mono); }
.ft p { margin: 0; color: var(--soft); }
.ft ol { list-style: none; margin: 0; padding: 0 0 0 18px; }
.ft li { position: relative; transition: opacity 500ms var(--ease-out), transform 500ms var(--ease-out); overflow-wrap: anywhere; }
.ft li::before { content: "└"; position: absolute; left: -16px; color: var(--soft); }
.sol-js .gfx--deploy:not(.is-in) .dt li, .sol-js .gfx--deploy:not(.is-in) .ft li { opacity: 0; transform: translateX(-8px); }
.sol-js .gfx--deploy .dt li { transition-delay: calc(var(--i) * 150ms + 200ms); }
.sol-js .gfx--deploy .ft li { transition-delay: calc(var(--i) * 110ms + 800ms); }

/* 05 · measure + evals */
.ms__key { display: flex; align-items: center; gap: 8px; margin: -6px 0 14px; font: 400 11px/1 var(--sc-font-mono); color: var(--soft); }
.ms__key span { width: 18px; height: 8px; border-radius: 4px; margin-left: 8px; }
.ms__key span:first-child { margin-left: 0; }
.k0, .b0 { background: color-mix(in oklab, var(--sc-ink) 22%, var(--card)); }
.k1, .b1 { background: var(--sc-accent); }
.ms { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.ms__l { margin: 0 0 6px; font-size: var(--sc-t-sm); }
.ms__b { display: flex; align-items: center; gap: 10px; margin: 0 0 4px; }
.ms__b span { display: block; height: 10px; border-radius: 5px; width: calc(var(--w) * 78%); transform-origin: left; transition: transform 1100ms var(--ease-out); transition-delay: calc(var(--i) * 140ms + 200ms); }
.ms__b + .ms__b span { transition-delay: calc(var(--i) * 140ms + 600ms); }
.ms__b em { font: 400 var(--sc-t-xs)/1 var(--sc-font-mono); font-style: normal; color: var(--soft); white-space: nowrap; }
.sol-js .gfx--measure:not(.is-in) .ms__b span { transform: scaleX(0); }
.ev { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--sc-hairline); }
.ev__h { margin: 0 0 14px; font-size: var(--sc-t-sm); color: var(--soft); line-height: 1.5; }
.ev__h b { color: var(--sc-ink); font-weight: 500; margin-right: 6px; }
.ev__g { display: grid; grid-template-columns: repeat(10, minmax(0, 1fr)); gap: 6px; height: 88px; align-items: end; }
.ev__g i { position: relative; display: block; height: calc(var(--h) * 100%); border-radius: 6px 6px 3px 3px; background: color-mix(in oklab, var(--sc-accent) calc(var(--h) * 100%), var(--card));
  transform-origin: bottom; transition: transform 700ms var(--ease-out); transition-delay: calc(var(--i) * 70ms + 900ms); }
.ev__g b { position: absolute; left: 0; right: 0; top: -18px; text-align: center; font: 500 11px/1 var(--sc-font-mono); color: var(--soft); }
.sol-js .gfx--measure:not(.is-in) .ev__g i { transform: scaleY(0); }
.ev__a { margin: 12px 0 0; font: 400 var(--sc-t-xs)/1.4 var(--sc-font-mono); color: var(--soft); }
.ev__a b { color: var(--sc-ink); font-weight: 500; }

/* ------------------------------------------------------------- end + close */
.sol__end { max-width: var(--w-max); margin: clamp(48px, 8vh, 88px) auto 0; display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 28px;
  padding: clamp(22px, 3vw, 36px); border-radius: 22px; border: 1px solid var(--line); }
.sol__label { margin: 0 0 12px; font: 400 var(--sc-t-xs)/1 var(--sc-font-mono); color: var(--soft); }
.gets { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 22rem)); gap: 10px 28px; }
.gets li { position: relative; padding-left: 22px; line-height: 1.45; }
.gets li::before { content: ""; position: absolute; left: 0; top: 0.5em; width: 9px; height: 9px; border-radius: 50%; background: var(--sc-accent); }


/* ============================================================ sales pages */
.sol__eyebrow { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin: 0; }
.chip { display: inline-flex; align-items: center; min-height: 30px; padding: 0 12px; border-radius: 999px;
  background: var(--sc-accent); color: var(--sc-accent-ink); font: 500 var(--sc-t-xs)/1 var(--sc-font-mono); letter-spacing: 0.02em; }
.sol__label { margin: 0 0 12px; font: 400 var(--sc-t-xs)/1.4 var(--sc-font-mono); color: var(--soft); }
.lp-hero { padding: calc(var(--bar-h) + clamp(40px, 9vh, 110px)) var(--pad-x) clamp(48px, 8vh, 96px); }
.lp-hero__in { max-width: var(--w-max); margin: 0 auto; display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(28px, 5vw, 80px); align-items: center; }
.lp-hero h1 { margin: 22px 0 0; font: 500 clamp(2.8rem, 6.4vw, 5.8rem)/0.98 var(--sc-font-display); letter-spacing: -0.045em; text-wrap: balance; }
.signs { margin-top: 26px; }
.signs ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.signs li { position: relative; padding-left: 30px; font-size: var(--sc-t-base); line-height: 1.4; }
.signs li::before { content: ""; position: absolute; left: 0; top: 0.12em; width: 18px; height: 18px; border-radius: 6px; border: 1.5px solid var(--sc-accent);
  background: color-mix(in oklab, var(--sc-accent) 10%, transparent); }
.signs li::after { content: ""; position: absolute; left: 5px; top: 0.42em; width: 8px; height: 4px; border-left: 2px solid var(--sc-accent); border-bottom: 2px solid var(--sc-accent); transform: rotate(-45deg);
  transition: transform 400ms var(--ease-out), opacity 400ms; transition-delay: calc(var(--i) * 140ms + 700ms); }
.sol-js .signs:not(.is-in) li::after { opacity: 0; transform: rotate(-45deg) scale(0.3); }
.lp-hero .obj__actions { margin-top: 30px; }
.lp-sec { max-width: var(--w-max); margin: 0 auto; }
.lp-sec h2, .lp-check h2 { margin: 0; font: 500 clamp(2.2rem, 4.8vw, 4.2rem)/1 var(--sc-font-display); letter-spacing: -0.045em; text-wrap: balance; }
.lp-sec h2 span, .lp-check h2 span { color: var(--soft); }

/* the breakdown lenses */
.lenses { display: grid; gap: 20px; }
.gfx--lens figcaption b::before { content: "lens · "; font: 400 var(--sc-t-xs)/1 var(--sc-font-mono); color: var(--sc-accent); vertical-align: 0.3em; }
.sol-js .gfx--lens:not(.is-in) li { opacity: 0; transform: translateY(8px); }
.gfx--lens li { transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out); transition-delay: calc(var(--i) * 140ms + 250ms); }

.wys { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.wy { display: grid; grid-template-columns: 4.5rem minmax(0, 1fr) auto; gap: 14px; align-items: center; padding: 12px 0; position: relative; }
.wy + .wy { border-top: 1px dashed var(--line); }
.wy__q { font: 400 11px/1 var(--sc-font-mono); color: var(--soft); }
.wy__t { font-size: var(--sc-t-base); line-height: 1.35; }
.wy.is-root .wy__t { font-weight: 500; color: var(--sc-accent); }

.iv__h { display: grid; grid-template-columns: minmax(0, 1fr) 24px minmax(0, 1fr); gap: 12px; margin: 0 0 8px; font: 400 11px/1 var(--sc-font-mono); color: var(--soft); }
.iv__h span:last-child { grid-column: 3; }
.ivs { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.ivs li { display: grid; grid-template-columns: minmax(0, 1fr) 24px minmax(0, 1fr); gap: 12px; align-items: center; }
.iv__w { padding: 10px 12px; border-radius: 12px; border: 1px dashed var(--line); color: var(--soft); text-decoration: line-through; text-decoration-color: color-mix(in oklab, var(--sc-ink) 35%, transparent); font-size: var(--sc-t-sm); line-height: 1.3; }
.iv__a { text-align: center; color: var(--sc-accent); }
.iv__f { padding: 10px 12px; border-radius: 12px; background: color-mix(in oklab, var(--sc-accent) 12%, var(--card)); border: 1px solid color-mix(in oklab, var(--sc-accent) 40%, transparent); font-size: var(--sc-t-sm); line-height: 1.3; }

.jms { list-style: none; margin: 0; padding: 26px 0 0; display: grid; grid-template-columns: repeat(var(--n), minmax(0, 1fr)); gap: 10px; position: relative; }
.jms::before { content: ""; position: absolute; left: 6px; right: 6px; top: 31px; height: 2px; background: var(--line); }
.jm { position: relative; display: grid; gap: 6px; align-content: start; padding-top: 22px; min-width: 0; }
.jm i { position: absolute; left: 0; top: -1px; width: 12px; height: 12px; border-radius: 50%; background: var(--card); border: 2px solid var(--sc-ink); }
.jm.is-leak i { background: var(--sc-accent); border-color: var(--sc-accent); box-shadow: 0 0 0 5px color-mix(in oklab, var(--sc-accent) 18%, transparent); }
.jm__w { font: 400 11px/1.2 var(--sc-font-mono); color: var(--soft); }
.jm__t { font-size: var(--sc-t-sm); line-height: 1.3; }
.jm__l { justify-self: start; padding: 4px 8px; border-radius: 999px; background: var(--sc-accent); color: var(--sc-accent-ink); font: 500 10.5px/1 var(--sc-font-mono); }

.fxs { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr); gap: 10px; align-items: stretch; }
.fx { display: grid; gap: 8px; align-content: start; padding: 14px; border-radius: 14px; border: 1px solid var(--line); min-width: 0; }
.fx.is-hot { border-color: var(--sc-accent); background: color-mix(in oklab, var(--sc-accent) 10%, var(--card)); }
.fx__k { margin: 0; font: 400 11px/1 var(--sc-font-mono); color: var(--soft); }
.fx__t { margin: 0; font-size: var(--sc-t-sm); line-height: 1.35; }
.fx__op { align-self: center; font: 500 26px/1 var(--sc-font-display); color: var(--soft); }
.fx__lv { margin: 18px 0 8px; font: 400 11px/1 var(--sc-font-mono); color: var(--soft); }
.fxl { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.fxl li { position: relative; padding-left: 20px; font-size: var(--sc-t-sm); line-height: 1.4; }
.fxl li::before { content: "→"; position: absolute; left: 0; color: var(--sc-accent); }

.qqs { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.qq { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 14px; }
.qq__b { position: relative; padding: 11px 16px; border-radius: 16px 16px 16px 4px; background: color-mix(in oklab, var(--sc-ink) 6%, var(--card)); font-size: var(--sc-t-sm); line-height: 1.35; max-width: 32rem; }
.qq.is-open .qq__b { background: var(--card); border: 1.5px solid var(--sc-accent); }
.qq__s { font: 400 10.5px/1 var(--sc-font-mono); color: var(--soft); }
.qq.is-open .qq__s { color: var(--sc-accent); }

/* options board */
.om { position: relative; padding: 0 0 28px 28px; }
.om svg { display: block; width: 100%; height: auto; overflow: visible; }
.om__q { fill: none; } .om__q--win { fill: color-mix(in oklab, var(--sc-accent) 7%, transparent); }
.om__ax { stroke: var(--line); stroke-width: 0.3; fill: none; }
.om svg { border: 1px solid var(--sc-hairline); border-radius: 12px; }
.om__l { font: 400 3px/1 var(--sc-font-mono); fill: var(--soft); }
.od circle { fill: var(--card); stroke: var(--sc-ink); stroke-width: 0.5; transition: transform 600ms var(--spring, var(--ease-out)); transition-delay: calc(var(--i) * 90ms + 300ms); }
.od text { font: 600 3.4px/1 var(--sc-font-mono); fill: var(--sc-ink); text-anchor: middle; transition: opacity 400ms; transition-delay: calc(var(--i) * 90ms + 400ms); }
.od.is-pick circle { fill: var(--sc-accent); stroke: var(--sc-accent); }
.od.is-pick text { fill: var(--sc-accent-ink); }
.sol-js .gfx--options:not(.is-in) .od circle { transform: scale(0); }
.sol-js .gfx--options:not(.is-in) .od text { opacity: 0; }
.om__x, .om__y { margin: 0; position: absolute; font: 400 11px/1 var(--sc-font-mono); color: var(--soft); }
.om__x { left: 28px; right: 0; bottom: 4px; text-align: center; }
.om__y { left: 0; top: 50%; transform: translateX(-46%) rotate(-90deg); white-space: nowrap; }
.ok { list-style: none; margin: 16px 0 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px 18px; }
.ok li { display: flex; gap: 10px; font-size: var(--sc-t-sm); line-height: 1.35; color: var(--soft); }
.ok li b { flex: none; display: grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; border: 1px solid var(--sc-ink); color: var(--sc-ink); font: 600 10px/1 var(--sc-font-mono); }
.ok li.is-pick { color: var(--sc-ink); }
.ok li.is-pick b { background: var(--sc-accent); border-color: var(--sc-accent); color: var(--sc-accent-ink); }

.pks { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.pks li { display: grid; grid-template-columns: 34px minmax(0, 1fr); gap: 14px; padding: 16px; border-radius: 16px; border: 1px solid color-mix(in oklab, var(--sc-accent) 45%, transparent);
  background: color-mix(in oklab, var(--sc-accent) 6%, var(--card)); transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out); transition-delay: calc(var(--i) * 160ms + 200ms); }
.sol-js .gfx--picks:not(.is-in) .pks li { opacity: 0; transform: translateY(10px); }
.pk__n { margin: 0; display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--sc-accent); color: var(--sc-accent-ink); font: 600 13px/1 var(--sc-font-mono); }
.pks h4 { margin: 4px 0 4px; font: 500 var(--sc-t-lg)/1.2 var(--sc-font-display); letter-spacing: -0.02em; }
.pks p { margin: 0; color: var(--soft); font-size: var(--sc-t-sm); line-height: 1.45; }
.pks .pk__n { color: var(--sc-accent-ink); font-size: 13px; }
.pk__c { display: inline-block; margin-top: 10px; padding: 5px 9px; border-radius: 999px; border: 1px solid var(--line); font: 400 11px/1 var(--sc-font-mono); }
.nn { margin-top: 16px; border-top: 1px solid var(--sc-hairline); padding-top: 14px; }
.nn summary { cursor: pointer; font-size: var(--sc-t-sm); color: var(--soft); list-style: none; }
.nn summary::before { content: "+"; display: inline-block; width: 18px; color: var(--sc-accent); transition: transform 300ms var(--ease-out); }
.nn[open] summary::before { transform: rotate(45deg); }
.nn ol { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 10px; }
.nn li { display: grid; grid-template-columns: 22px minmax(0, 14rem) minmax(0, 1fr); gap: 10px; font-size: var(--sc-t-sm); line-height: 1.4; }
.nn li b { font: 600 11px/1.6 var(--sc-font-mono); color: var(--soft); }
.nn li em { font-style: normal; color: var(--soft); }

/* the scored selection */
.sc__k, .sc__r { display: grid; grid-template-columns: 26px minmax(0, 1fr) 62px 62px 62px 74px; gap: 12px; align-items: center; }
.sc__k { margin: 0 0 6px; font: 400 10.5px/1.2 var(--sc-font-mono); color: var(--soft); }
.sc__k span:first-child { grid-column: 3; } .sc__k span:last-child { text-align: right; }
.sc { list-style: none; margin: 0; padding: 0; }
.sc__r { padding: 9px 0; border-top: 1px solid var(--sc-hairline); font-size: var(--sc-t-sm); line-height: 1.3; color: var(--soft);
  transition: opacity 500ms var(--ease-out), transform 500ms var(--ease-out); transition-delay: calc(var(--i) * 80ms + 200ms); }
.sol-js .gfx--score:not(.is-in) .sc__r { opacity: 0; transform: translateX(-8px); }
.sc__r.is-pick { color: var(--sc-ink); }
.sc__n { display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; border: 1px solid var(--sc-ink); color: var(--sc-ink); font: 600 10px/1 var(--sc-font-mono); }
.sc__r.is-pick .sc__n { background: var(--sc-accent); border-color: var(--sc-accent); color: var(--sc-accent-ink); }
.sc__m { display: flex; gap: 3px; }
.sc__m i { width: 9px; height: 9px; border-radius: 2px; background: color-mix(in oklab, var(--sc-ink) 10%, var(--card)); }
.sc__m i.on { background: color-mix(in oklab, var(--sc-ink) 55%, var(--card)); }
.sc__r.is-pick .sc__m--i i.on { background: var(--sc-accent); }
.sc__s { display: flex; align-items: center; justify-content: flex-end; gap: 8px; font: 600 12px/1 var(--sc-font-mono); color: var(--sc-ink); }
.sc__s em { display: block; width: 34px; height: 6px; border-radius: 3px; background: linear-gradient(90deg, var(--bar, color-mix(in oklab, var(--sc-ink) 40%, var(--card))) calc(var(--s) * 100%), color-mix(in oklab, var(--sc-ink) 8%, var(--card)) 0); }
.sc__r.is-pick .sc__s em { --bar: var(--sc-accent); }
.sc__cut { position: relative; height: 26px; border-top: 2px dashed var(--sc-accent); list-style: none; }
.sc__cut span { position: absolute; right: 0; top: -11px; padding: 3px 8px; border-radius: 999px; background: var(--sc-accent); color: var(--sc-accent-ink); font: 500 10.5px/1.2 var(--sc-font-mono); }
.lp-mid { margin-top: clamp(40px, 7vh, 72px); }

/* offer, questions, check */
.lp-offer__in { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(28px, 5vw, 80px); align-items: end; }
.lp-offer .gets { margin-top: 26px; grid-template-columns: minmax(0, 1fr); }
.how { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; }
.how li { display: grid; grid-template-columns: 36px minmax(0, 1fr); gap: 14px; align-items: center; padding: 16px 0; border-top: 1px solid var(--line); line-height: 1.4; }
.how b { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; border: 1px solid var(--sc-accent); color: var(--sc-accent); font: 500 13px/1 var(--sc-font-mono); }
.faq { margin-top: clamp(56px, 9vh, 96px); }
.faq__i { border-top: 1px solid var(--line); }
.faq__i:last-child { border-bottom: 1px solid var(--line); }
.faq__i summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 16px; padding: 20px 0; font: 500 var(--sc-t-lg)/1.25 var(--sc-font-display); letter-spacing: -0.02em; }
.faq__i summary::after { content: "+"; color: var(--sc-accent); transition: transform 300ms var(--ease-out); }
.faq__i[open] summary::after { transform: rotate(45deg); }
.faq__i p { margin: 0 0 20px; max-width: 60ch; color: var(--soft); line-height: 1.55; }
.lp-check__in { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(28px, 5vw, 80px); align-items: start; }
.check { display: grid; gap: 22px; }
.check .ask__row { grid-template-columns: minmax(0, 1fr); gap: 10px; }
.check .choice span { min-height: 42px; font-size: var(--sc-t-sm); }
.check__go { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; }
.check__go .step__hint { max-width: 32ch; }
.check__sent p { margin: 0 0 12px; line-height: 1.5; }
.lp-foot { padding: 32px var(--pad-x) 24px; border-top: 1px solid var(--sc-hairline); }

@media (max-width: 980px) {
  .lp-hero__in, .lp-offer__in, .lp-check__in { grid-template-columns: minmax(0, 1fr); }
  .lp-hero .sol__art { max-width: 34rem; }
  .jms { grid-template-columns: minmax(0, 1fr); padding-top: 0; gap: 14px; }
  .jms::before { left: 5px; right: auto; top: 6px; bottom: 6px; width: 2px; height: auto; }
  .jm { padding: 0 0 0 28px; }
  .jm i { top: 2px; }
  .fxs { grid-template-columns: minmax(0, 1fr); }
  .fx__op { justify-self: center; }
}
@media (max-width: 600px) {
  .sc__k { display: none; }
  .sc__r { grid-template-columns: 26px minmax(0, 1fr) 60px; row-gap: 6px; }
  .sc__r .sc__m { display: none; }
  .wy { grid-template-columns: minmax(0, 1fr); gap: 6px; }
  .wy .rr__tag { justify-self: start; }
  .ivs li, .iv__h { grid-template-columns: minmax(0, 1fr); gap: 6px; }
  .iv__h span:last-child { display: none; } .iv__a { transform: rotate(90deg); }
  .ok { grid-template-columns: minmax(0, 1fr); }
  .nn li { grid-template-columns: 22px minmax(0, 1fr); } .nn li em { grid-column: 2; }
  .check__go .btn { flex: 1 1 100%; }
}

/* ------------------------------------------------------------- responsive */
@media (max-width: 980px) {
  .sol__head, .step { grid-template-columns: minmax(0, 1fr); }
  .sol__art { max-width: 34rem; }
  .step__t { position: relative; top: 0; }
  .fl { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fn + .fn::before, .fn + .fn::after { display: none; }
}
@media (max-width: 600px) {
  .rr { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 22px; }
  .rr__c:nth-child(3) .rr__chev { clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 50%, calc(100% - 14px) 100%, 0 100%); border-radius: 8px 0 0 8px; }
  .tws { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .tas { grid-template-columns: minmax(0, 1fr); }
  .tl { display: none; }
  .tws, .tas { margin-top: 12px; }
  .fl { grid-template-columns: minmax(0, 1fr); gap: 10px; }
  .fn { min-height: 0; }
  .dt li { grid-template-columns: 36px minmax(0, 1fr); }
  .dt__w { grid-column: 2; } .dt__x { grid-column: 2; } .dt__k { grid-column: 2; justify-self: start; }
  .gets { grid-template-columns: minmax(0, 1fr); }
  .steps::before { display: none; }
  .step__t { padding-left: 56px; }
  .sol__end .btn { flex: 1 1 100%; }
}

/* ---------------------------------------------------------- reduced motion */
@media (prefers-reduced-motion: reduce) {
  .sol-js [data-rv] { opacity: 1; transform: none; filter: none; transition: none; }
  .page-sol *, .page-sol *::before, .page-sol *::after { animation: none !important; transition-duration: 1ms !important; transition-delay: 0ms !important; }
}