/* LEGO brand study. Colour tokens are the ones lego.com publishes in its own CSS.
   Typeface: Outfit stands in for LEGO Typewell / Cera Pro (both proprietary).
   Contrast checked: black on #FFD400 14.7, white on #DD1A22 4.95, white on #006CB7 5.5, black on #00AF4D 7+. */

:root {
  --y: #ffd400;
  --r: #dd1a22;
  --b: #006cb7;
  --g: #00af4d;
  --k: #000;
  --w: #fff;
  --ink: #111;
  --mute: #4a4a4a;
  --line: rgba(0, 0, 0, .18);
  --wrap: 1180px;
  --pad: clamp(1.1rem, 4vw, 2.5rem);
  --ease: cubic-bezier(.2, .8, .2, 1);
  color-scheme: light;
}
*, *::before, *::after { box-sizing: border-box; }
html { font-size: 15px; }
html { scroll-behavior: smooth; scroll-padding-top: 4.5rem; }
body { margin: 0; font-family: "Outfit", system-ui, sans-serif; font-size: 1rem; line-height: 1.55; color: var(--ink); background: var(--w); -webkit-font-smoothing: antialiased; }
h1, h2, h3, p, ul, ol, figure, table { margin: 0; padding: 0; }
ul, ol { list-style: none; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--b); outline-offset: 3px; border-radius: 4px; }
.sec--dark :focus-visible, .top :focus-visible, .stats :focus-visible { outline-color: var(--y); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: 1rem; top: -4rem; z-index: 100; background: var(--k); color: var(--w); padding: .7rem 1rem; font-weight: 800; }
.skip:focus { top: 1rem; }
.wrap { width: min(100% - 2 * var(--pad), var(--wrap)); margin-inline: auto; }
.ic { width: 1.25em; height: 1.25em; flex: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.ic--lg { width: 2.4rem; height: 2.4rem; }

/* top bar */
.top { position: sticky; top: 0; z-index: 50; display: flex; align-items: center; gap: 1rem; min-height: 3.5rem; padding: .35rem var(--pad); background: var(--k); color: var(--w); }
.top__back { display: inline-flex; align-items: center; gap: .35rem; font-weight: 800; text-decoration: none; min-height: 44px; margin-right: auto; }
.top__nav { display: flex; gap: .25rem; }
.top__nav a { text-decoration: none; font-weight: 600; padding: .55rem .8rem; border-radius: 999px; min-height: 44px; display: inline-flex; align-items: center; transition: background .2s, color .2s; }
.top__nav a:hover { background: var(--w); color: var(--k); }
.top__cta { background: var(--y); color: var(--k); font-weight: 800; text-decoration: none; padding: .6rem 1.1rem; border-radius: 999px; min-height: 44px; display: inline-flex; align-items: center; transition: transform .2s var(--ease), background .2s; }
.top__cta:hover { background: var(--w); transform: translateY(-2px); }

/* hero */
.hero { background: var(--y); padding-top: clamp(2rem, 6vw, 4.5rem); }
.hero__grid { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: clamp(1.5rem, 5vw, 4rem); align-items: center; }
.kicker, .eyebrow { font-size: .8rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.hero h1 { font-size: clamp(2.8rem, 8.6vw, 6.4rem); font-weight: 900; line-height: .9; letter-spacing: -.04em; margin: 1rem 0 1.4rem; }
.lede { font-size: clamp(1.15rem, 2vw, 1.5rem); line-height: 1.45; max-width: 36rem; font-weight: 500; }
.lede--dark { margin-top: 1rem; }
.hero__by { margin-top: 1.4rem; font-weight: 600; font-size: .95rem; }
.hero__logo { text-align: center; max-width: 11rem; }
.hero__logo img { margin: 0 auto .8rem; border-radius: 10px; width: clamp(7rem, 14vw, 10.5rem); height: auto; }
.hero__logo p { font-size: .72rem; line-height: 1.35; color: var(--mute); }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: clamp(2rem, 5vw, 4rem); background: var(--k); color: var(--w); border-radius: 18px 18px 0 0; overflow: hidden; }
.stat { display: flex; flex-direction: column; gap: .35rem; padding: clamp(1.1rem, 3vw, 2rem); text-decoration: none; border-left: 1px solid rgba(255, 255, 255, .22); transition: background .25s; }
.stat:first-child { border-left: 0; }
.stat:hover { background: #1b1b1b; }
.stat b { font-size: clamp(1.9rem, 3.8vw, 3rem); line-height: 1; font-weight: 900; letter-spacing: -.03em; font-variant-numeric: tabular-nums; color: var(--y); }
.stat--red b { color: #ff6b70; }
.stat span { font-size: 1rem; line-height: 1.4; }
.stat i { font-style: normal; font-size: .78rem; color: #c9c9c9; margin-top: auto; padding-top: .5rem; }

/* sections */
.sec { padding-block: clamp(3rem, 8vw, 6rem); }
.sec--dark { background: var(--k); color: var(--w); }
.sec--y { background: var(--y); }
h2 { font-size: clamp(1.8rem, 3.9vw, 2.9rem); font-weight: 900; line-height: 1; letter-spacing: -.035em; margin: .5rem 0 1.6rem; max-width: 22ch; }
h3 { font-size: 1.35rem; font-weight: 800; line-height: 1.2; letter-spacing: -.01em; }
.eyebrow { color: var(--r); }
.sec--dark .eyebrow { color: var(--y); }
.sec--y .eyebrow { color: var(--k); }
.note { font-size: .9rem; line-height: 1.5; opacity: .85; margin-top: 1rem; max-width: 60ch; }
.note a { text-underline-offset: 3px; }
code { font-family: ui-monospace, "SF Mono", Menlo, monospace; font-size: .9em; }

/* verdict */
.trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.card { padding: 1.6rem; border-radius: 16px; display: flex; flex-direction: column; gap: .8rem; }
.card p { line-height: 1.55; }
.card--y { background: var(--y); }
.card--r { background: var(--r); color: var(--w); }
.card--b { background: var(--b); color: var(--w); }

/* system */
.sys { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 4vw, 3.5rem); }
.sys h3 { margin-bottom: 1rem; }
.swatches { display: grid; gap: .5rem; }
.swatches li { background: var(--c); color: var(--t); border-radius: 10px; padding: .85rem 1.1rem; display: flex; justify-content: space-between; align-items: center; gap: 1rem; border: 1px solid rgba(255, 255, 255, .25); }
.swatches b { font-weight: 800; }
.facts { display: grid; gap: .9rem; }
.facts li { padding-left: 1rem; border-left: 4px solid var(--y); line-height: 1.5; }
.facts b { display: block; font-weight: 800; }
.sec--dark .note a { color: var(--y); }

/* findings */
.finding { padding-block: clamp(1.5rem, 4vw, 2.5rem); border-top: 3px solid var(--k); }
.finding__head { display: flex; gap: 1rem; align-items: flex-start; margin-bottom: 1.4rem; }
.num { flex: none; display: grid; place-items: center; width: 3.2rem; height: 3.2rem; border-radius: 10px; background: var(--r); color: var(--w); font-weight: 900; font-size: 1.6rem; }
.finding h3 { font-size: clamp(1.3rem, 2.4vw, 1.8rem); font-weight: 900; letter-spacing: -.03em; line-height: 1.05; align-self: center; }
.finding__grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: clamp(1.5rem, 4vw, 3rem); align-items: start; }
.finding__grid--rev { grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); }
.finding p { margin-bottom: 1rem; max-width: 62ch; }
.doubt { background: #f3f3f3; border-left: 5px solid var(--b); padding: .8rem 1rem; border-radius: 0 10px 10px 0; font-size: .98rem; }
.shot { border: 3px solid var(--k); border-radius: 14px; overflow: hidden; background: var(--k); }
.shot img { width: 100%; max-height: 520px; object-fit: cover; object-position: top; }
.shot figcaption { padding: .7rem 1rem; font-size: .85rem; line-height: 1.4; background: var(--k); color: #e8e8e8; }
.split { display: flex; margin-top: 1.5rem; border-radius: 12px; overflow: hidden; font-weight: 600; }
.split span { padding: .9rem 1.1rem; display: flex; gap: .6rem; align-items: baseline; }
.split b { font-size: 1.8rem; font-weight: 900; }
.split__a { background: var(--y); }
.split__b { background: var(--k); color: var(--w); }
.marks { background: var(--k); color: var(--w); border-radius: 14px; padding: 1.4rem; }
.marks > p:first-child { font-size: .75rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: var(--y); margin-bottom: .8rem; }
.marks li { padding: .65rem 0; border-top: 1px solid rgba(255, 255, 255, .2); font-size: 1.15rem; font-weight: 600; }
.marks li:first-child { border-top: 0; }
.marks__stat { margin-top: 1rem; padding-top: 1rem; border-top: 2px solid var(--y); }
.marks__stat b { color: var(--y); font-size: 1.8rem; font-weight: 900; }
.type { display: grid; gap: 1rem; }
.type__row { display: grid; gap: .3rem; padding: 1.2rem 1.4rem; border-radius: 14px; background: #f3f3f3; margin: 0; }
.type__row span { font-size: .75rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: var(--mute); }
.type__row b { font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.05; font-weight: 800; }
.type__a { font-family: "Outfit", sans-serif; letter-spacing: .02em; }
.type__b { font-family: "Outfit", sans-serif; font-weight: 500; letter-spacing: -.01em; }

/* prototype */
.proto { margin-top: 1.5rem; background: var(--k); border-radius: 20px; padding: clamp(1rem, 3vw, 1.8rem); color: var(--w); }
.proto__bar { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem; margin-bottom: 1.4rem; }
.seg { font: inherit; font-weight: 800; min-height: 44px; padding: .6rem 1.2rem; border-radius: 999px; border: 2px solid var(--w); background: transparent; color: var(--w); cursor: pointer; transition: background .2s, color .2s, transform .15s; }
.seg:hover { background: rgba(255, 255, 255, .15); }
.seg:active { transform: scale(.97); }
.seg.is-on { background: var(--y); color: var(--k); border-color: var(--y); }
.proto__count { margin-left: auto; font-weight: 600; color: #d6d6d6; }
.proto__stage { min-height: 22rem; }
.bricks { display: flex; flex-wrap: wrap; gap: 1rem .5rem; padding-top: .6rem; }
.brick { position: relative; background: var(--w); color: var(--k); font-weight: 600; font-size: .92rem; line-height: 1.2; padding: .5rem .8rem; border-radius: 6px; will-change: transform; }
.brick::before, .brick::after { content: ""; position: absolute; top: -.42rem; width: .62rem; height: .42rem; background: inherit; border-radius: 3px 3px 0 0; }
.brick::before { left: .55rem; }
.brick::after { right: .55rem; }
.shelves { display: grid; grid-template-columns: 1.15fr 1.15fr .7fr; gap: 1.6rem 1.4rem; }
.shelf { border-top: 4px solid var(--c, var(--y)); padding-top: .8rem; }
.shelf--wide { grid-column: 1 / -1; }
.shelf h4 { margin: 0 0 .15rem; font-size: 1.15rem; font-weight: 800; }
.shelf > p { margin: 0 0 .7rem; font-size: .88rem; color: #cfcfcf; }
.shelf__subs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.shelf__sub > span { display: block; font-size: .72rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--y); margin-bottom: .5rem; }
.shelf .bricks { gap: .85rem .45rem; }
.t-play .brick { background: var(--r); color: var(--w); }
.t-make .brick { background: var(--b); color: var(--w); }
.t-school .brick { background: var(--g); color: var(--k); }
.t-partner .brick { background: var(--w); color: var(--k); }
.rules { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 1rem; margin-top: 1.4rem; }
.rule { background: var(--w); border-radius: 16px; padding: 1.4rem; display: flex; flex-direction: column; gap: .8rem; border: 3px solid var(--k); }
.rule table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.rule th { text-align: left; font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; padding: .4rem .5rem .4rem 0; border-bottom: 2px solid var(--k); }
.rule td { padding: .5rem .5rem .5rem 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.rule td:last-child { font-weight: 800; }
.rule ol { counter-reset: o; display: grid; gap: .6rem; }
.rule ol li { counter-increment: o; padding-left: 1.9rem; position: relative; line-height: 1.45; }
.rule ol li::before { content: counter(o); position: absolute; left: 0; top: .1rem; width: 1.35rem; height: 1.35rem; display: grid; place-items: center; border-radius: 50%; background: var(--k); color: var(--w); font-size: .8rem; font-weight: 800; }

/* plan */
.plan { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; counter-reset: p; }
.plan li { counter-increment: p; border: 3px solid var(--k); border-radius: 16px; padding: 1.5rem; display: flex; flex-direction: column; gap: .7rem; position: relative; }
.plan li::before { content: counter(p); position: absolute; top: -1.1rem; left: 1.2rem; width: 2.2rem; height: 2.2rem; display: grid; place-items: center; background: var(--y); border: 3px solid var(--k); border-radius: 8px; font-weight: 900; }
.metric { margin-top: auto !important; padding-top: .8rem; border-top: 2px dashed var(--line); font-size: .95rem; margin-bottom: 0 !important; }
.metric span { font-size: .72rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--r); display: block; }

/* method */
.method { display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(1.5rem, 4vw, 3.5rem); }
.src { display: grid; gap: .5rem; margin-top: .8rem; }
.src a { display: block; padding: .8rem 1rem; border: 2px solid var(--w); border-radius: 10px; text-decoration: none; font-weight: 600; transition: background .2s, color .2s; min-height: 44px; }
.src a:hover { background: var(--w); color: var(--k); }

/* cta + foot */
.cta { background: var(--r); color: var(--w); padding-block: clamp(2.5rem, 6vw, 4.5rem); }
.cta__grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 2rem; align-items: center; }
.cta h2 { margin-bottom: .6rem; }
.cta p { max-width: 36rem; font-size: 1.15rem; }
.cta__btns { display: flex; flex-wrap: wrap; gap: .8rem; justify-content: flex-end; }
.btn { display: inline-flex; align-items: center; min-height: 48px; padding: .8rem 1.5rem; border-radius: 999px; font-weight: 800; text-decoration: none; border: 3px solid var(--w); transition: transform .2s var(--ease), background .2s, color .2s; }
.btn:hover { transform: translateY(-3px) rotate(-1deg); }
.btn--k { background: var(--k); border-color: var(--k); color: var(--w); }
.btn--o { color: var(--w); }
.btn--o:hover { background: var(--w); color: var(--r); }
.foot { background: var(--k); color: var(--w); padding-block: 1.4rem; font-size: .92rem; }
.foot .wrap { display: flex; flex-wrap: wrap; gap: .8rem 2rem; justify-content: space-between; }

/* reveal */
.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s var(--ease), transform .7s var(--ease); }
.js .reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .brick { transition: none !important; }
  .btn:hover, .top__cta:hover { transform: none; }
}

@media (max-width: 960px) {
  .top__nav { display: none; }
  .hero__grid, .finding__grid, .finding__grid--rev, .sys, .method, .cta__grid { grid-template-columns: 1fr; }
  .hero__logo { order: -1; text-align: left; max-width: none; display: flex; align-items: center; gap: 1rem; }
  .hero__logo img { margin: 0; width: 5.5rem; }
  .trio, .plan, .rules { grid-template-columns: 1fr; }
  .plan { gap: 2rem; }
  .shelves { grid-template-columns: 1fr 1fr; }
  .shelf__subs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cta__btns { justify-content: flex-start; }
}
@media (max-width: 640px) {
  .shelves { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; border-radius: 14px 14px 0 0; }
  .stat { border-left: 0; border-top: 1px solid rgba(255, 255, 255, .22); }
  .stat:first-child { border-top: 0; }
  .proto__count { margin-left: 0; width: 100%; }
  .shelf__subs { grid-template-columns: 1fr; }
}

/* embedded in the portfolio popup */
.is-embedded .top { display: none; }
.is-embedded { scroll-padding-top: 1rem; }