/* INSIDE case study. Always dark: it is a scan in a dark room. Colours come from tokens.css (--ds-*). */

*, *::before, *::after { box-sizing: border-box; }
/* type, after figurelabs.ai, in one family: Urbanist 800 for the headline, 600 for headings, 300 for big display
   numbers, 500 for reading (400 reads thin on dark). No serif. */
:root { --sans: "Urbanist", "Inter", system-ui, sans-serif; --display: "Urbanist", system-ui, sans-serif;
        --head: "Urbanist", "Inter", system-ui, sans-serif; --mono: "JetBrains Mono", ui-monospace, monospace;
        --read: #b3bac6; }
body {
  margin: 0; color: var(--ds-body); font: 400 18px/1.6 var(--sans); letter-spacing: .01em; -webkit-font-smoothing: antialiased;
  font-feature-settings: "cv11", "ss01"; text-rendering: optimizeLegibility;
  background:
    radial-gradient(1100px 700px at 85% -10%, rgba(155, 199, 166, .10), transparent 60%),
    radial-gradient(900px 650px at -10% 35%, rgba(232, 144, 124, .07), transparent 60%),
    #0d0e0d;
}
img { max-width: 100%; display: block; }
a { color: var(--ds-accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
h1, h2, h3 { color: var(--ds-ink); font-family: var(--head); font-weight: 600; letter-spacing: -.01em; margin: 0; text-wrap: balance; }
p, li, figcaption { text-wrap: pretty; font-weight: 500; }  /* Urbanist 400 reads thin on dark */
h2 em { font-style: normal; color: var(--ds-accent); }

/* top bar */
.top { display: flex; align-items: center; gap: 12px; padding: 24px 0; }
.top .me { display: flex; align-items: center; gap: 10px; color: var(--ds-ink); font: 600 16px/1.2 var(--head); letter-spacing: 0; }
.top .me img { width: 38px; height: 38px; border-radius: 50%; }
.top .me small { display: block; font: 500 12px/1.4 var(--sans); color: var(--ds-muted); letter-spacing: .08em; text-transform: uppercase; }
.wip { margin-inline-start: auto; display: inline-flex; align-items: center; gap: 8px; padding: 7px 14px; border-radius: var(--ds-radius-pill);
       border: 1px solid rgba(232, 144, 124, .35); background: rgba(232, 144, 124, .08); color: var(--ds-accent-alt);
       font: 600 12px/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; }
.wip i { width: 7px; height: 7px; border-radius: 50%; background: var(--ds-accent-alt); animation: pulse 1.8s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .3; } }

/* hero */
.hero { text-align: center; padding: 48px 0 0; }
.kicker { display: inline-flex; padding: 7px 14px; border-radius: var(--ds-radius-pill);
          background: rgba(155, 199, 166, .1); border: 1px solid rgba(155, 199, 166, .25); color: var(--ds-accent);
          font: 600 12px/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; }
.hero h1 { font-family: var(--display); font-weight: 800; font-size: clamp(44px, 7vw, 88px); line-height: 1; letter-spacing: -.035em;
            margin: 26px auto 22px; max-width: 1000px; }
.hero h1 em { font-style: normal; background: linear-gradient(100deg, var(--ds-accent) 25%, var(--ds-accent-alt));
              -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { font-size: 20px; line-height: 1.55; color: var(--read); max-width: 36em; margin: 0 auto; }

/* sections */
section { padding: 88px 0; }
.eyebrow { display: flex; align-items: center; gap: 12px; color: var(--ds-muted); font: 600 12.5px/1 var(--sans); letter-spacing: .16em;
           text-transform: uppercase; margin: 0 0 18px; }
.eyebrow i { font-style: normal; color: var(--ds-accent); }
.eyebrow::after { content: ""; flex: 0 0 48px; height: 1px; background: var(--ds-hairline); }
section h2 { font-size: clamp(30px, 3.6vw, 42px); line-height: 1.12; max-width: 18em; }
section .intro { color: var(--read); font-size: 19px; line-height: 1.55; max-width: 38em; margin: 18px 0 0; }

/* the film: the page's centre */
section.film { padding-top: 46px; }
video.demo { display: block; width: 100%; border-radius: 22px; background: #000; aspect-ratio: 16 / 9;
             box-shadow: 0 40px 90px rgba(0, 0, 0, .6), 0 0 0 1px rgba(155, 199, 166, .14); }
.player { position: relative; cursor: pointer; }
.player.on { cursor: auto; }
.player .sound { position: absolute; inset-inline-end: 22px; inset-block-end: 22px; display: inline-flex; align-items: center; gap: 10px;
                 padding: 12px 20px 12px 16px; border-radius: var(--ds-radius-pill); border: 1px solid rgba(255, 255, 255, .18);
                 background: rgba(12, 13, 12, .62); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
                 color: var(--ds-ink); font: 600 15px/1 var(--sans); cursor: pointer; transition: background .2s, transform .2s; }
.player .sound svg { width: 20px; height: 20px; color: var(--ds-accent); }
.player:hover .sound { background: rgba(12, 13, 12, .8); transform: translateY(-1px); }
.player.on .sound { display: none; }
@media (max-width: 520px) { .player .sound { inset-inline-end: 12px; inset-block-end: 12px; padding: 9px 14px 9px 12px; font-size: 13.5px; } }
.note { color: var(--read); font-size: 15px; line-height: 1.6; max-width: 46em; margin: 20px auto 0; text-align: center; opacity: .85; }

/* what it does */
.four { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 40px; }
.card { margin: 0; border-radius: 22px; background: var(--ds-surface-card); border: 1px solid var(--ds-hairline); overflow: hidden; }
figure.card img { width: 100%; aspect-ratio: 16 / 8; object-fit: cover; background: #000; }
.card figcaption, .split .card { padding: 24px 26px 26px; }
.card h3 { font-size: 22px; line-height: 1.25; margin-bottom: 8px; }
.card p { margin: 0; color: var(--read); font-size: 17px; line-height: 1.5; }

/* the lift, step by step */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin-top: 40px; }
.steps figure { margin: 0; }
.steps img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 16px; border: 1px solid var(--ds-hairline); background: #000; }
.steps figcaption { margin-top: 14px; color: var(--ds-ink); font: 600 16px/1.3 var(--head); letter-spacing: 0; }
.steps figcaption i { display: block; font: 300 34px/1 var(--head); font-style: normal; letter-spacing: -.02em; color: var(--ds-accent); margin-bottom: 6px; }

/* on the Cintiq */
.hands { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 40px; }
.hands img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: 18px; border: 1px solid var(--ds-hairline); }

/* gallery */
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 40px; }
.gallery figure { margin: 0; }
.gallery figure.wide { grid-column: 1 / -1; }
.gallery img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; border-radius: 16px; border: 1px solid var(--ds-hairline); background: #000; }
.gallery figure.wide img { aspect-ratio: 21 / 9; object-position: center 30%; }
.gallery figcaption { margin-top: 12px; color: var(--read); font-size: 15px; line-height: 1.45; }

/* flow diagram */
.flow { margin-top: 44px; padding: 30px; border-radius: 26px; background: var(--ds-surface-soft); border: 1px solid var(--ds-hairline); }
.flow svg { width: 100%; height: auto; display: block; }
.flow text { font-family: var(--sans); }

/* hard parts */
.parts { display: grid; gap: 18px; margin-top: 44px; }
.part { display: grid; grid-template-columns: 70px 1fr 1fr; gap: 28px; padding: 30px; border-radius: 24px;
        background: var(--ds-surface-card); border: 1px solid var(--ds-hairline); }
.part .n { font: 300 56px/.85 var(--head); letter-spacing: -.03em; color: var(--ds-accent-alt); }
.part h3 { font-size: 22px; line-height: 1.25; margin-bottom: 10px; }
.part p { margin: 0; color: var(--read); font-size: 17px; line-height: 1.55; }
.part .fix { padding: 18px 20px; border-radius: 16px; background: rgba(155, 199, 166, .07); border: 1px solid rgba(155, 199, 166, .18); }
.part .fix b { display: block; color: var(--ds-accent); font: 700 12px/1 var(--sans); letter-spacing: .14em; text-transform: uppercase; margin-bottom: 10px; }
.part .fix p { color: var(--ds-body); font-size: 16.5px; }

/* status */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 44px; }
.split .card:last-child { border-color: rgba(232, 144, 124, .28); }
.split .card:last-child h3 { color: var(--ds-accent-alt); }
.split .card h3 { font-size: 24px; }
ul.tidy { margin: 16px 0 0; padding: 0; list-style: none; color: var(--read); font-size: 17px; }
ul.tidy li { margin: 0; padding: 10px 0 10px 22px; border-top: 1px solid var(--ds-hairline); position: relative; }
ul.tidy li::before { content: ""; position: absolute; left: 2px; top: 1.15em; width: 7px; height: 7px; border-radius: 50%; background: var(--ds-accent); opacity: .7; }
.split .card:last-child li::before { background: var(--ds-accent-alt); }

/* stack */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 30px; }
.chip { padding: 8px 15px; border-radius: var(--ds-radius-pill); border: 1px solid var(--ds-hairline); font: 500 15px/1.3 var(--sans); color: var(--ds-body); letter-spacing: .01em; }

footer { padding: 70px 0 60px; color: var(--ds-muted); text-align: center; font-size: 16px; border-top: 1px solid var(--ds-hairline); }
footer .credit { margin-top: 12px; font: 400 13px/1.6 var(--sans); color: var(--ds-muted-soft); letter-spacing: .02em; }
footer .ctas { display: flex; gap: 12px; justify-content: center; margin-bottom: 22px; }
.btn { display: inline-flex; padding: 12px 24px; border-radius: var(--ds-radius-pill); font: 600 15px/1.4 var(--sans); letter-spacing: 0; background: var(--ds-ink); color: #111; }
.btn:hover { text-decoration: none; filter: brightness(1.06); }

@media (max-width: 860px) {
  .four, .split, .hands { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(5, minmax(150px, 1fr)); overflow-x: auto; padding-bottom: 6px; scroll-snap-type: x mandatory; }
  .steps figure { scroll-snap-align: start; }
  .gallery { grid-template-columns: 1fr 1fr; }
  .part { grid-template-columns: 1fr; gap: 14px; }
}
@media (max-width: 520px) {
  .wrap { padding: 0 16px; }
  section { padding: 60px 0; }
  .top .me small { display: none; }
  .top .me { white-space: nowrap; }
  .wip { padding: 6px 10px; font-size: 11px; white-space: nowrap; }
  .gallery figure.wide img { aspect-ratio: 16 / 10; }
  .part, .flow { padding: 20px; }
  .card figcaption, .split .card { padding: 20px; }
}