/* Albert Sans, self-hosted (was Google Fonts): no third-party request blocks the first paint. */
@font-face{font-family:"Albert Sans";font-style:normal;font-weight:100 900;font-display:swap;
  src:url(assets/fonts/albert-sans-latin-wght-normal.woff2) format("woff2");
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Albert Sans";font-style:normal;font-weight:100 900;font-display:swap;
  src:url(assets/fonts/albert-sans-latin-ext-wght-normal.woff2) format("woff2");
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
/* Arial resized to Albert Sans' proportions, so text doesn't jump when the real font arrives. */
@font-face{font-family:"Albert Sans Fallback";src:local("Arial"),local("Helvetica"),local("Roboto");
  size-adjust:104.6%;ascent-override:90.8%;descent-override:23.9%;line-gap-override:0%}

:root{
    color-scheme: light;

    /* ---- TYPE TOKENS (tune here) ---- */
    --font:"Albert Sans","Albert Sans Fallback",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
    --fw-regular:400; --fw-medium:500; --fw-semibold:600; --fw-bold:700; --fw-black:800;

    --fs-eyebrow:13px;   /* uppercase section labels */
    --fs-small:14px;     /* meta, footer links */
    --fs-body:16px;      /* paragraphs */
    --fs-lede:18px;      /* intro paragraph */
    --fs-nav:15px;
    --fs-brand:15px;     /* card brand name */
    --fs-title:clamp(22px,2.4vw,30px);  /* card headlines */
    --fs-h2:clamp(30px,4vw,46px);       /* section headings */
    --fs-hero:clamp(26px,3vw,34px);     /* hero headline */
    --fs-stat:clamp(28px,3vw,38px);     /* metric numbers */

    --lh-tight:1.1; --lh-snug:1.35; --lh-body:1.6;
    --ls-tight:-.02em; --ls-eyebrow:.14em;

    /* ---- COLOR ---- */
    --bg:#ffffff;
    --ink:#17181a;
    --body:#55585e;
    --muted:#6c6f75;   /* was #8b8e94; darkened to pass WCAG AA (4.5:1) on white */
    --line:#ececee;
    --chip:#f5f5f6;

    --blue:#dce7fb;   --blue-tag:#eaf1fc;
    --highlight:var(--blue);
    --mauve:#c9a8be;  --mauve-tag:#efe4ec;
    --sage:#5e7a56;   --sage-tag:#dfeadb;
    --mint:#c6e9e6;   --mint-tag:#e2f3f1;
    --cream:#f3e6c7;
    --olive:#4b5a3a;
    --opsin:#3ba0ff;

    --badge-fill:rgba(23,24,26,.42);
    --badge-ink:#ffffff;
    --media-scrim:rgba(23,24,26,.42);
    --media-shadow:0 12px 32px rgba(0,0,0,.12);
    --media-shadow-hover:0 18px 40px rgba(0,0,0,.16);
    --case-zoom:1.03;
    --ease-out:cubic-bezier(.2,.7,.2,1);

    --fs-caption:15px;
    --fs-meta:14px;

    --radius-card:20px;
    --radius-media:10px;
    --radius-lg:22px;
    --radius-md:16px;
    --radius-sm:8px;
    --radius-pill:999px;
    --maxw:1200px;       /* content width, excluding page padding */
    --page-pad:clamp(16px,4vw,28px);
    --nav-inset:clamp(0px,1.4vw,20px);  /* header sits slightly inside the content edge */
    --case-pad:clamp(20px,2.8vw,40px);
    --case-gap-col:32px;
    --case-gap-row:32px;

    /* ---- HEADER ---- */
    --pill-bg:#ffffff;
    --pill-bg-scrolled:rgba(255,255,255,.62);
    --pill-blur:14px;
    --nav-hover-bg:var(--blue-tag);
    --burger-w:18px;
    --burger-gap:5px;
    --pill-shadow:0 2px 3px rgba(0,0,0,.2);
    --menu-shadow:0 18px 40px -16px rgba(20,22,26,.28);
    --fs-menu:17px;

    /* ---- KERENAI WIDGET (iframe sized to the widget's closed / open state) ---- */
    --agent-closed-w:340px;
    --agent-closed-h:150px;
    --agent-open-w:528px;
    --agent-open-h:648px;

    /* ---- ABOUT PAGE ---- */
    --fs-about-title:clamp(36px,4vw,48px);
    --fs-about-sub:clamp(24px,2.6vw,32px);
    --fs-about-h2:clamp(26px,2.6vw,32px);
    --fs-about-item:clamp(18px,1.5vw,20px);
    --about-grad:linear-gradient(90deg,#b8d0fb 0%,#dec9de 33%,#25799f 66%,#1f5d2a 100%);
    --about-logo:50px;
    --about-section-gap:clamp(72px,9vw,120px);
    --portrait-w:clamp(240px,24vw,320px);
    --portrait-tilt:4deg;   /* hover tilt */
    --polaroid-bg:#ffffff;
    --polaroid-shadow:0 4px 12px rgba(0,0,0,.15);
    --polaroid-img:clamp(150px,15vw,206px);
    --polaroid-gap:clamp(18px,2vw,26px);
    --marquee-duration:60s;

    /* ---- CASE STUDY PAGES ---- */
    --fs-cs-title:clamp(32px,4.4vw,56px);
    --fs-cs-lede:clamp(18px,1.5vw,20px);
    --fs-cs-h2:clamp(22px,2vw,26px);
    --fs-cs-h3:18px;
    --fs-cs-body:17px;
    --fs-cs-list:16px;
    --fs-cs-label:12px;
    --fs-cs-tag:13px;
    --fs-cs-stat:clamp(30px,3vw,40px);
    --fs-cs-quote:clamp(20px,2vw,24px);

    --cs-rail-max:280px;
    --cs-gap:clamp(40px,6vw,80px);
    --cs-section-gap:clamp(64px,8vw,96px);
    --cs-sticky-top:104px;
    --cs-cover-pad:clamp(20px,4vw,56px);
    --radius-cover:24px;
    --radius-figure:16px;

    --screen-dark:#16181d;
    --media-veil:rgba(255,255,255,.55);
    --fs-cs-callout:clamp(56px,7vw,88px);

    /* hover lift (tweened by GSAP in case.js; shadows must share one format) */
    --lift-y:4px;
    --lift-shadow:0 0 0 0 rgba(23,24,26,0);
    --lift-shadow-hover:0 18px 36px -16px rgba(23,24,26,.24);

    /* team chips + slideshow toggle */
    --team-avatar:36px;
    --toggle-size:44px;
    --toggle-icon:18px;
    --toggle-bg:rgba(23,24,26,.62);
    --toggle-ink:#ffffff;

    /* tabs (underline / segment / pill) and before-after hold */
    --tab-h:40px;
    --tab-indicator:2px;
    --tab-track:var(--chip);
    --tab-thumb-light:var(--bg);
    --tab-thumb-dark:var(--ink);
    --tab-thumb-shadow:0 1px 3px rgba(23,24,26,.14);
    --switch-w:34px;
    --switch-h:20px;
    --switch-knob:14px;

    /* finding cards + phone carousel */
    --fs-finding-num:clamp(36px,4vw,48px);
    --finding-edge:3px;
    --phone-h:clamp(360px,36vw,480px);
    --carousel-gap:0.86;
    --carousel-btn:44px;
    --carousel-icon:18px;
    --dot:8px;
    --dot-active:28px;
    --dot-hit:24px;
    --dot-track:rgba(23,24,26,.18);

    /* annotated before/after: outlines on screenshots, inks on white */
    --mark-bad:#ff4d57;
    --mark-good:#2fd27a;
    --mark-ink:#17181a;
    --mark-border:2px;
    --mark-num:20px;
    --verdict-bad:#c62a2f;
    --verdict-good:#2b6a3f;

    /* SUS meter + tooltips */
    --fs-sus:clamp(40px,5vw,56px);
    --sus-h:16px;
    --sus-track:#e4e5e7;
    --sus-fill:var(--verdict-good);
    --tip-w:260px;

    /* tool icons in the fact rail */
    --tool-hit:44px;
    --tool-tile:36px;
    --tool-icon:20px;
    --tool-shadow:0 1px 2px rgba(0,0,0,.06);
    --tooltip-bg:var(--ink);
    --tooltip-ink:#ffffff;
    --fs-tooltip:13px;

    --g-opsin-1:#d3f5ea;  --g-opsin-2:#a6e5f4;   /* mint → sky, sampled from the Opsin cover video */
    --g-acme-1:#ebe9fd;   --g-acme-2:#cbc4ed;   /* lavender, sampled from the ACME cover video */
    --g-soc-1:#fe9a9e;    --g-soc-2:#f9d0c4;   /* coral → peach, sampled from the SOC cover video */
    --g-joymee-1:#fdf1f8; --g-joymee-2:#f3e5f6; --g-joymee-3:#e8d8f4;   /* blush → lilac, sampled from the JoyMee cover video */
    --g-joymee-ink:#a3307c;
    --g-cmi-1:#f1f7f2; --g-cmi-2:#e2eee5; --g-cmi-3:#c9ddd0;   /* mist → sage, from the CMI cover */
    --g-cmi-ink:#3f6b55;
  }

  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    font-family:var(--font);
    background:var(--bg);
    color:var(--ink);
    font-size:var(--fs-body);
    line-height:var(--lh-body);
    font-weight:var(--fw-regular);
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img,video{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button,input,select,textarea{font:inherit;color:inherit}  /* form controls use Albert Sans too */
  .wrap{width:100%;max-width:calc(var(--maxw) + 2 * var(--page-pad));margin:0 auto;padding:0 var(--page-pad)}

  /* ---------- NAV ---------- */
  header{position:sticky;top:0;z-index:50;padding:20px 0 8px}
  /* Once scrolled, the strip of page behind the nav blurs and fades out softly at its bottom edge */
  header::before{content:"";position:absolute;inset:0 0 -28px;z-index:-1;pointer-events:none;
    background:rgba(255,255,255,.55);
    backdrop-filter:blur(12px) saturate(1.2);-webkit-backdrop-filter:blur(12px) saturate(1.2);
    -webkit-mask-image:linear-gradient(#000 55%,transparent);mask-image:linear-gradient(#000 55%,transparent);
    opacity:0;transition:opacity .3s ease}
  header.is-scrolled::before{opacity:1}
  .nav-inner{
    position:relative;max-width:calc(var(--maxw) + 2 * var(--page-pad));margin:0 auto;
    padding:0 calc(var(--page-pad) + var(--nav-inset));
    display:flex;align-items:center;justify-content:space-between;gap:16px;
  }
  .logo{font-weight:var(--fw-black);letter-spacing:.04em;font-size:18px;line-height:22px}
  header nav,.nav-toggle{
    background:var(--pill-bg);
    border:1px solid var(--line);
    border-radius:var(--radius-pill);
    box-shadow:var(--pill-shadow);
    transition:background-color .2s ease;
  }
  header.is-scrolled nav,header.is-scrolled .nav-toggle{
    background:var(--pill-bg-scrolled);
    backdrop-filter:blur(var(--pill-blur));
    -webkit-backdrop-filter:blur(var(--pill-blur));
  }
  header nav{position:relative;display:flex;gap:4px;align-items:center;padding:7px 9px}
  header nav a{
    position:relative;z-index:1;
    font-size:var(--fs-nav);font-weight:var(--fw-medium);line-height:18px;color:var(--body);
    padding:8px 15px;border-radius:var(--radius-pill);
    transition:background .18s ease,color .18s ease;
  }
  /* Sliding hover highlight; site.js sets --glide-x / --glide-w to the hovered link. */
  .nav-glide{
    position:absolute;top:7px;bottom:7px;left:0;z-index:0;
    width:var(--glide-w,0);transform:translateX(var(--glide-x,0));
    background:var(--glide-c,var(--nav-hover-bg));border-radius:var(--radius-pill);
    opacity:0;pointer-events:none;
    transition:transform .28s cubic-bezier(.2,.7,.2,1),width .28s cubic-bezier(.2,.7,.2,1),opacity .18s ease,background-color .28s ease;
  }
  /* Each nav option gets its own star pastel (same palette as the twinkling stars) */
  header nav a{--pill:var(--nav-hover-bg)}
  header nav a:nth-of-type(1){--pill:color-mix(in srgb,#c9b8f0 45%,#fff)}
  header nav a:nth-of-type(2){--pill:color-mix(in srgb,#a8dccf 45%,#fff)}
  header nav a:nth-of-type(3){--pill:color-mix(in srgb,#f6c3cf 45%,#fff)}
  header nav a:nth-of-type(4){--pill:color-mix(in srgb,#b5d3f5 45%,#fff)}
  header nav a:nth-of-type(5){--pill:color-mix(in srgb,#f5dfa6 45%,#fff)}
  .nav-glide--instant{transition:opacity .18s ease}
  header nav.is-gliding .nav-glide{opacity:1}
  header nav a.is-hovered{color:var(--ink)}
  .nav-toggle{
    display:none;align-items:center;justify-content:center;
    width:44px;height:44px;padding:0;color:var(--ink);cursor:pointer;
  }
  .nav-toggle-bars,.nav-toggle-bars::before,.nav-toggle-bars::after{
    display:block;width:var(--burger-w);height:2px;border-radius:2px;background:currentColor;
    transition:transform .2s ease,background-color .2s ease;
  }
  .nav-toggle-bars{position:relative}
  .nav-toggle-bars::before,.nav-toggle-bars::after{content:"";position:absolute;left:0}
  .nav-toggle-bars::before{transform:translateY(calc(-1 * var(--burger-gap)))}
  .nav-toggle-bars::after{transform:translateY(var(--burger-gap))}
  header.menu-open .nav-toggle-bars{background:transparent}
  header.menu-open .nav-toggle-bars::before{transform:rotate(45deg)}
  header.menu-open .nav-toggle-bars::after{transform:rotate(-45deg)}
  .nav-toggle:focus-visible{outline:2px solid #7ea6e6;outline-offset:3px}
  @media (hover:hover) and (pointer:fine){
    header nav a:hover{color:var(--ink)}
    header nav:not(.has-glide) a:hover{background:var(--pill)}
    .nav-toggle:hover{background:var(--chip)}
  }

  /* ---------- HERO ---------- */
  .hero{
    display:flex;flex-direction:column;gap:0;
    padding-top:72px;padding-bottom:50px;
  }
  .hero-copy{width:100%;max-width:100%;position:relative;z-index:1}
  .hero .greet{
    font-size:var(--fs-lede);line-height:22px;color:var(--body);font-weight:var(--fw-medium);
    margin-bottom:16px;
  }
  .hero h1{
    font-size:var(--fs-hero);line-height:var(--lh-snug);
    font-weight:var(--fw-semibold);letter-spacing:var(--ls-tight);
    overflow:visible;width:100%;
  }
  /* Marker-style highlight that sweeps in once the headline has faded up. */
  .hl{
    padding:0 .16em;margin:0 -.04em;border-radius:var(--radius-sm);
    background:linear-gradient(var(--hl-c),var(--hl-c)) no-repeat left center / 0% 100%;
    transition:--hl-c .7s ease;
    box-decoration-break:clone;-webkit-box-decoration-break:clone;
    animation:hl-draw .75s cubic-bezier(.65,0,.35,1) .55s forwards;
  }
  @keyframes hl-draw{to{background-size:100% 100%}}
  @property --hl-c{syntax:'<color>';inherits:false;initial-value:#dce7fb}
  .hl{--hl-c:var(--highlight)}
  /* Shooting star that lands on the highlight every 10-15s (site.js) */
  .shooting-star{position:absolute;z-index:3;width:120px;height:2px;margin:-1px 0 0 0;pointer-events:none;
    transform-origin:0 50%;border-radius:2px;
    background:linear-gradient(90deg,var(--c),color-mix(in srgb,var(--c) 45%,transparent) 45%,transparent)}
  .shooting-star::before{content:"";position:absolute;left:-3px;top:-2px;width:6px;height:6px;border-radius:50%;
    background:#fff;box-shadow:0 0 6px 2px var(--c)}
  .hl-spark{position:absolute;z-index:3;width:14px;height:14px;margin:-7px 0 0 -7px;pointer-events:none;background:var(--c);
    clip-path:polygon(50% 0,61% 39%,100% 50%,61% 61%,50% 100%,39% 61%,0 50%,39% 39%);
    animation:hl-spark .7s ease-out forwards}
  @keyframes hl-spark{0%{opacity:0;transform:scale(.2) rotate(0)}35%{opacity:1;transform:scale(1.15) rotate(45deg)}100%{opacity:0;transform:scale(.6) rotate(90deg)}}
  .hl.is-hit{background-size:100% 100%;animation:hl-pop .5s ease-out}
  @keyframes hl-pop{40%{filter:brightness(1.04) saturate(1.3)}}
  .hero p.lede{
    width:100%;max-width:none;margin-top:16px;
    font-size:var(--fs-lede);line-height:var(--lh-body);color:var(--body);
  }
  .inline-logo{
    display:inline-block;width:40px;height:40px;object-fit:cover;
    vertical-align:middle;margin:-6px .15em;
    border-radius:var(--radius-sm);
  }
  /* Opsin logo in the hero lede: hover (or tap / focus) opens a small card */
  .hero{position:relative;z-index:5}   /* keeps the card above the work grid (the fade-in makes the lede its own layer) */
  .hero p.lede{position:relative;z-index:2}   /* and above the buttons below it */
  .logo-pop{position:relative;display:inline-block;vertical-align:middle}
  .logo-pop-trigger{padding:0;border:0;background:none;cursor:pointer;border-radius:var(--radius-sm);transition:transform .25s var(--ease-out)}
  .logo-pop-trigger .inline-logo{margin:-6px .15em;transition:box-shadow .25s var(--ease-out)}
  .logo-pop:hover .logo-pop-trigger,.logo-pop.is-open .logo-pop-trigger{transform:translateY(-2px) scale(1.08)}
  .logo-pop:hover .inline-logo,.logo-pop.is-open .inline-logo{box-shadow:0 8px 18px -8px rgba(23,24,26,.45)}
  .logo-pop-trigger:focus-visible{outline:2px solid var(--ink);outline-offset:3px}
  .logo-pop-card{
    position:absolute;top:calc(100% + 10px);left:50%;z-index:20;
    display:flex;flex-direction:column;gap:6px;width:260px;padding:16px;
    border:1px solid var(--line);border-radius:var(--radius-md);background:var(--bg);
    box-shadow:0 18px 40px -16px rgba(23,24,26,.35);
    font-size:var(--fs-small);line-height:1.45;color:var(--body);text-align:left;
    opacity:0;visibility:hidden;transform:translate(-50%,6px);
    transition:opacity .2s ease,transform .25s var(--ease-out),visibility 0s linear .25s;
  }
  .logo-pop-card::before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}   /* hover bridge */
  .logo-pop:hover .logo-pop-card,.logo-pop.is-open .logo-pop-card,.logo-pop:focus-within .logo-pop-card{
    opacity:1;visibility:visible;transform:translate(-50%,0);transition-delay:0s;
  }
  .logo-pop-head{display:flex;align-items:center;gap:10px;margin-bottom:2px;color:var(--ink);font-size:var(--fs-body)}
  .logo-pop-head img{width:28px;height:28px;border-radius:var(--radius-sm)}
  .logo-pop-link{display:inline-flex;gap:6px;width:fit-content;color:var(--ink);font-weight:var(--fw-semibold)}
  .logo-pop-link span{transition:transform .2s var(--ease-out)}
  .logo-pop-link:hover span{transform:translateX(3px)}
  .logo-pop-link:last-child:hover span{transform:translate(2px,-2px)}

  @media (max-width:767px){
    /* phones: anchor the card to the paragraph so it never runs off screen */
    .logo-pop{position:static}
    .logo-pop-card{left:0;width:min(280px,100%);transform:translateY(6px)}
    .logo-pop:hover .logo-pop-card,.logo-pop.is-open .logo-pop-card,.logo-pop:focus-within .logo-pop-card{transform:none}
  }

  /* status pill on work cards: frosted glass, colored dot */
  .case-pill{
    position:absolute;top:14px;left:14px;z-index:2;
    display:inline-flex;align-items:center;gap:7px;padding:6px 11px 6px 9px;border-radius:var(--radius-pill);
    background:rgba(255,255,255,.55);border:1px solid rgba(255,255,255,.7);
    backdrop-filter:blur(12px) saturate(1.4);-webkit-backdrop-filter:blur(12px) saturate(1.4);
    font-size:var(--fs-meta);line-height:1.2;font-weight:var(--fw-medium);color:var(--ink);
    box-shadow:0 2px 8px rgba(23,24,26,.08);
  }
  .case-pill-dot{width:8px;height:8px;border-radius:50%;background:var(--pill-dot,var(--ink));box-shadow:0 0 0 3px color-mix(in srgb,var(--pill-dot,var(--ink)) 22%,transparent)}
  .case-pill--shipped{--pill-dot:#1f9d55}
  .case-pill--research{--pill-dot:#7c5cff}
  .case-pill--sponsored{--pill-dot:#e58a00}

  .cta-row{display:flex;gap:12px;margin-top:42px;flex-wrap:wrap}
  .btn{
    display:inline-flex;align-items:center;gap:8px;
    font-size:var(--fs-nav);font-weight:var(--fw-semibold);line-height:18px;
    padding:11px 19px;border-radius:12px;
    transition:transform .16s ease,background-color .2s ease,box-shadow .2s ease;
  }
  .btn-arrow{display:inline-block;transition:transform .2s var(--ease-out)}
  @media (pointer:coarse){
    .btn{min-height:44px}
  }
  /* hover: lift, deepen the tint, nudge the arrow (plain :hover so it also works in embedded previews) */
  .btn:hover{transform:translateY(-2px);box-shadow:0 8px 18px -10px rgba(23,24,26,.35)}
  .btn:hover .btn-arrow{transform:translate(2px,-2px)}
  .btn-blue{background:var(--blue-tag);color:#2b4a7a}
  .btn-blue:hover{background:var(--blue)}
  .btn-mauve{background:var(--mauve-tag);color:#6a4560}
  .btn-mauve:hover{background:#e4cfde}

  /* ---------- SECTION LABEL ---------- */
  .eyebrow{
    font-size:var(--fs-eyebrow);font-weight:var(--fw-semibold);letter-spacing:var(--ls-eyebrow);
    text-transform:uppercase;color:var(--muted);margin-bottom:28px;
  }
  section.block{padding:24px 0 80px}

  /* ---------- CASE STUDIES (2-column card grid) ---------- */
  .case-grid{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    column-gap:var(--case-gap-col);
    row-gap:var(--case-gap-row);
    width:100%;
  }
  .case{display:block;width:100%;min-width:0}
  .case-frame{
    aspect-ratio:4/3;
    border-radius:var(--radius-card);
    overflow:hidden;
    padding:var(--case-pad);
    display:flex;align-items:center;justify-content:center;
    background:linear-gradient(145deg,var(--case-g1),var(--case-g2));
    background:linear-gradient(in oklab 145deg,var(--case-g1),var(--case-g2));
  }
  .case-frame--multi{
    background:linear-gradient(145deg,var(--case-g1),var(--case-g2),var(--case-g3));
    background:linear-gradient(in oklab 145deg,var(--case-g1),var(--case-g2),var(--case-g3));
  }
  .case-media{
    width:100%;height:100%;
    border-radius:var(--radius-media);
    overflow:hidden;
    background:var(--media-veil);
  }
  /* Videos are exported framed, so they fill the card edge to edge. */
  .case-frame--full{padding:0}
  .case-frame--full .case-media{border-radius:0;background:none}
  .case-video,.case-image{
    width:100%;height:100%;
    object-fit:cover;display:block;
    transition:transform .6s var(--ease-out);
  }
  .case-ph{width:100%;height:100%}

  .case-caption{
    margin-top:14px;
    display:flex;align-items:flex-start;justify-content:space-between;
    gap:24px;
  }
  .case-summary{
    font-size:var(--fs-caption);line-height:1.45;color:var(--muted);
    flex:1 1 auto;min-width:0;
    display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;
    transition:color .2s ease;
  }
  .case-meta{
    font-size:var(--fs-meta);line-height:1.45;color:var(--body);
    flex:0 0 auto;white-space:nowrap;
  }
  .case-arrow{
    display:inline-block;margin-left:6px;opacity:0;transform:translateX(-4px);
    transition:opacity .2s ease,transform .3s var(--ease-out);
  }
  .case:focus-visible{outline:none}
  .case:focus-visible .case-frame{outline:2px solid var(--ink);outline-offset:4px}
  .case.is-hovered :is(.case-video,.case-image),
  .case:focus-visible :is(.case-video,.case-image){transform:scale(var(--case-zoom))}
  .case.is-hovered .case-summary,.case:focus-visible .case-summary{color:var(--ink)}
  .case.is-hovered .case-arrow,.case:focus-visible .case-arrow{opacity:1;transform:none}

  /* PLAYGROUND styles live in the PLAYGROUND PAGE section below. */

  /* ---------- HOMEPAGE SECTIONS: titles, Playground strip, testimonials ---------- */
  .sec-title{font-size:var(--fs-lede);line-height:1.3;font-weight:var(--fw-semibold);color:var(--ink);letter-spacing:-.005em;margin-bottom:20px}
  .sec-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}
  .sec-head .sec-title{margin:0}
  .sec-actions{display:flex;align-items:center;gap:8px}
  .sec-link{display:inline-flex;align-items:center;gap:6px;margin-right:8px;font-size:var(--fs-nav);font-weight:var(--fw-medium);color:var(--body);transition:color .2s ease}
  .sec-link span{transition:transform .3s var(--ease-out)}
  .sec-link:hover{color:var(--ink)}
  .sec-link:hover span{transform:translateX(3px)}
  .strip-btn{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--bg);color:var(--ink);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .2s ease,opacity .2s ease}
  .strip-btn:hover:not(:disabled){background:var(--chip)}
  .strip-btn:disabled{opacity:.35;cursor:default}
  .strip-btn:focus-visible{outline:2px solid #7ea6e6;outline-offset:2px}
  .pg-strip{
    list-style:none;display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;
    scrollbar-width:none;padding-bottom:4px;
    -webkit-mask-image:linear-gradient(90deg,#000 calc(100% - 80px),transparent);mask-image:linear-gradient(90deg,#000 calc(100% - 80px),transparent);
  }
  .pg-strip.is-end{-webkit-mask-image:none;mask-image:none}
  .pg-strip::-webkit-scrollbar{display:none}
  .pg-strip:focus-visible{outline:2px solid #7ea6e6;outline-offset:4px;border-radius:12px}
  .pg-strip-item{flex:0 0 clamp(240px,27%,340px);scroll-snap-align:start}
  .pg-strip-card{display:block;color:inherit}
  .pg-strip-thumb{display:block;aspect-ratio:4/3;border-radius:16px;overflow:hidden;background:var(--chip)}
  .pg-strip-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s var(--ease-out)}
  .pg-strip-card:hover .pg-strip-thumb img{transform:scale(1.04)}
  .pg-strip-text{display:block;margin-top:10px;font-size:var(--fs-caption);line-height:1.45;color:var(--muted)}
  .pg-strip-text strong{color:var(--ink);font-weight:var(--fw-semibold)}
  .home-tm{padding-top:8px}
  .tm-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
  .tm-card{margin:0;padding:24px;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--bg);display:flex;flex-direction:column;gap:18px}
  .tm-card blockquote{margin:0;flex:1;font-size:var(--fs-body);line-height:1.6;color:var(--ink)}
  .tm-star{width:13px;height:13px;background:#c9b8f0;clip-path:polygon(50% 0,61% 39%,100% 50%,61% 61%,50% 100%,39% 61%,0 50%,39% 39%)}
  .tm-card:nth-child(2) .tm-star{background:#a8dccf}
  .tm-card:nth-child(3) .tm-star{background:#f6c3cf}
  .tm-card figcaption{display:flex;align-items:center;gap:12px;font-size:var(--fs-small);line-height:1.35;color:var(--body)}
  .tm-card figcaption strong{display:block;color:var(--ink);font-weight:var(--fw-semibold)}
  .tm-avatar{flex:none;width:40px;height:40px;border-radius:50%;background:var(--chip);object-fit:cover}
  /* placeholder cover (case card with no media yet) */
  .case-ph--soon{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;color:#465a55;font-size:15px;font-weight:500}
  .case-ph--soon img{border-radius:16px;box-shadow:0 12px 28px -14px rgba(20,22,26,.35)}
  .case-pill--progress{--pill-dot:#3f8f6b}
  @media (max-width:1023px){.tm-grid{grid-template-columns:1fr}}
  @media (max-width:767px){
    .pg-strip-item{flex-basis:72%}
    .strip-btn{display:none}
    .sec-link{margin-right:0}
  }

  /* ---------- 404 PAGE ---------- */
  .error-hero{min-height:calc(100dvh - 330px);justify-content:center;text-align:center;align-items:center;padding-top:96px;padding-bottom:96px}
  .error-hero .hero-copy{max-width:760px;margin:0 auto}
  .error-hero .lede{max-width:46ch;margin-left:auto;margin-right:auto}
  .error-hero .cta-row{justify-content:center}

  /* ---------- FOOTER ---------- */
  footer{padding:70px 0 60px;border-top:1px solid var(--line);position:relative;overflow:hidden}
  footer > .wrap{position:relative;z-index:1}
  .about-hero{position:relative}
  .about-hero > :not(.stars){position:relative;z-index:1}
  /* Twinkling pastel stars (hero + contact footer), built in site.js */
  .stars{position:absolute;inset:0;pointer-events:none;z-index:0;overflow:hidden}
  .star{position:absolute;width:var(--size);height:var(--size);background:var(--c);opacity:0;
    clip-path:polygon(50% 0,61% 39%,100% 50%,61% 61%,50% 100%,39% 61%,0 50%,39% 39%);
    animation:twinkle var(--dur) ease-in-out var(--delay) infinite;animation-play-state:paused}
  .star--dot{border-radius:50%;clip-path:none}
  .stars.is-on .star{animation-play-state:running}
  @keyframes twinkle{0%,100%{opacity:0;transform:scale(.55) rotate(0deg)}50%{opacity:.95;transform:scale(1) rotate(20deg)}}
  .foot-grid{display:grid;grid-template-columns:minmax(0,480px) minmax(0,280px) minmax(0,280px);gap:40px}
  .foot-brand :is(h2,h4){font-size:30px;line-height:1.2;font-weight:var(--fw-medium);letter-spacing:-.01em}
  .foot-brand p{color:var(--body);margin-top:14px;max-width:34ch}
  .foot-brand .copy{color:var(--muted);font-size:var(--fs-small);line-height:18px;margin-top:18px}
  .foot-col :is(h3,h5){font-size:var(--fs-body);line-height:20px;font-weight:var(--fw-bold);margin-bottom:16px}
  .foot-col a{display:block;color:var(--body);font-size:var(--fs-nav);line-height:18px;padding:5px 0;transition:color .16s ease}
  /* Text links: slide over a touch and a tiny pastel star twinkles in beside them */
  .foot-col > a{position:relative;width:fit-content;transition:color .2s ease,transform .3s var(--ease-out)}
  .foot-col > a::before{content:"";position:absolute;left:-16px;top:50%;width:9px;height:9px;margin-top:-4.5px;
    background:var(--link-star,#c9b8f0);opacity:0;transform:scale(.3) rotate(-45deg);
    clip-path:polygon(50% 0,61% 39%,100% 50%,61% 61%,50% 100%,39% 61%,0 50%,39% 39%);
    transition:opacity .25s ease,transform .35s var(--ease-out)}
  .foot-col > a:nth-of-type(2){--link-star:#a8dccf}
  .foot-col > a:nth-of-type(3){--link-star:#f6c3cf}
  .foot-col > a:nth-of-type(4){--link-star:#f5dfa6}
  .foot-col > a:hover,.foot-col > a:focus-visible{color:var(--ink);transform:translateX(16px)}
  .foot-col > a:hover::before,.foot-col > a:focus-visible::before{opacity:1;transform:scale(1) rotate(0)}
  .foot-icons{display:flex;gap:14px}
  .foot-icons a{
    position:relative;width:38px;height:38px;border-radius:10px;border:1px solid var(--line);
    display:flex;align-items:center;justify-content:center;color:var(--body);
    transition:background .25s ease,color .25s ease,border-color .25s ease,transform .35s var(--ease-out),box-shadow .35s var(--ease-out);
  }
  .foot-icons a svg{transition:transform .4s var(--ease-out)}
  /* Pastel tile per icon, a small lift, and a star that pops at the corner */
  .foot-icon--in{--tile:var(--blue-tag);--tile-ink:#2b4a7a;--tile-star:#9fbdf0}
  .foot-icon--mail{--tile:var(--mauve-tag);--tile-ink:#6a4560;--tile-star:#f0a3b6}
  .foot-icons a::after{content:"";position:absolute;top:-5px;right:-5px;width:10px;height:10px;background:var(--tile-star);
    clip-path:polygon(50% 0,61% 39%,100% 50%,61% 61%,50% 100%,39% 61%,0 50%,39% 39%);
    opacity:0;transform:scale(.2) rotate(-60deg);transition:opacity .2s ease,transform .4s var(--ease-out)}
  .foot-icons a:hover,.foot-icons a:focus-visible{background:var(--tile);color:var(--tile-ink);border-color:transparent;
    transform:translateY(-3px);box-shadow:0 8px 18px -10px color-mix(in srgb,var(--tile-ink) 45%,transparent)}
  .foot-icons a:hover::after,.foot-icons a:focus-visible::after{opacity:1;transform:scale(1) rotate(0)}
  .foot-icon--in:hover svg,.foot-icon--in:focus-visible svg{transform:rotate(-8deg) scale(1.08)}
  .foot-icon--mail:hover svg,.foot-icon--mail:focus-visible svg{transform:translateY(-1px) rotate(6deg) scale(1.08)}

  /* ---------- KERENAI WIDGET ---------- */
  /* KerenAI chat widget (served from the portfolio-agent app). Closed, the frame hugs the
     button + bubble (size reported by the widget); open, it grows to fit the panel. */
  .agent-frame{
    position:fixed;right:0;bottom:0;z-index:60;
    width:min(var(--agent-fit-w,var(--agent-closed-w)),100vw);height:min(var(--agent-fit-h,var(--agent-closed-h)),100dvh);
    border:0;background:transparent;color-scheme:light;
  }
  .agent-frame.is-open{width:min(var(--agent-open-w),100vw);height:min(var(--agent-open-h),100dvh)}
  @media (max-width:540px){
    .agent-frame.is-open{width:100vw;height:100dvh}
  }

  /* ---------- CASE STUDY PAGES ---------- */
  .theme-opsin{--case-g1:var(--g-opsin-1);--case-g2:var(--g-opsin-2);--case-g3:var(--g-opsin-2)}
  .theme-acme{--case-g1:var(--g-acme-1);--case-g2:var(--g-acme-2);--case-g3:var(--g-acme-2)}
  .theme-soc{--case-g1:var(--g-soc-1);--case-g2:var(--g-soc-2);--case-g3:var(--g-soc-2)}
  .theme-cmi{--case-g1:var(--g-cmi-1);--case-g2:var(--g-cmi-2);--case-g3:var(--g-cmi-3);--case-ink:var(--g-cmi-ink)}
  .theme-joymee{--case-g1:var(--g-joymee-1);--case-g2:var(--g-joymee-2);--case-g3:var(--g-joymee-3);--case-ink:var(--g-joymee-ink)}

  .cs-label{
    font-size:var(--fs-cs-label);font-weight:var(--fw-semibold);line-height:1.35;
    letter-spacing:var(--ls-eyebrow);text-transform:uppercase;color:var(--muted);
  }

  /* hero */
  .cs-hero{padding:72px var(--page-pad) 48px}
  .cs-back{
    display:inline-flex;align-items:center;gap:6px;min-height:44px;
    font-size:var(--fs-nav);font-weight:var(--fw-medium);color:var(--body);
    transition:color .16s ease;
  }
  .cs-back:hover{color:var(--ink)}
  .cs-hero .cs-label{margin-top:28px}
  .cs-title{
    margin-top:20px;max-width:18em;
    font-size:var(--fs-cs-title);line-height:var(--lh-tight);
    font-weight:var(--fw-semibold);letter-spacing:-.03em;
  }
  .cs-lede{margin-top:20px;max-width:40em;font-size:var(--fs-cs-lede);line-height:var(--lh-body);color:var(--body)}
  .cs-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px;list-style:none}
  .cs-tags li{
    font-size:var(--fs-cs-tag);font-weight:var(--fw-medium);line-height:1.2;color:var(--body);
    background:var(--chip);border-radius:var(--radius-pill);padding:7px 12px;
  }

  /* cover */
  .cs-cover{
    aspect-ratio:16/8.3;padding:var(--cs-cover-pad);
    border-radius:var(--radius-cover);
    background:linear-gradient(145deg,var(--case-g1),var(--case-g2),var(--case-g3));
  }
  .cs-cover-media{width:100%;height:100%;border-radius:var(--radius-media);background:var(--media-veil);overflow:hidden}
  .cs-cover-media img,.cs-cover-media video{width:100%;height:100%;object-fit:cover}
  .cs-cover--video{aspect-ratio:4/3;padding:0;overflow:hidden}
  .cs-cover--video .cs-cover-media{border-radius:0;background:none}

  /* body: rail + content */
  .cs-body{
    display:grid;
    grid-template-columns:minmax(200px,var(--cs-rail-max)) minmax(0,1fr);
    gap:var(--cs-gap);align-items:start;
    padding-top:var(--cs-section-gap);padding-bottom:120px;
  }
  .cs-rail{position:sticky;top:var(--cs-sticky-top);display:flex;flex-direction:column;gap:32px}
  .cs-facts{display:flex;flex-direction:column;gap:20px}
  .cs-facts dt{font-size:var(--fs-cs-label);font-weight:var(--fw-semibold);letter-spacing:var(--ls-eyebrow);text-transform:uppercase;color:var(--muted)}
  .cs-facts dd{margin-top:6px;font-size:var(--fs-nav);line-height:1.45;color:var(--ink)}
  .tool-list{display:flex;flex-wrap:wrap;margin:0 calc((var(--tool-tile) - var(--tool-hit)) / 2);list-style:none}
  .tool{
    position:relative;display:inline-flex;align-items:center;justify-content:center;
    width:var(--tool-hit);height:var(--tool-hit);border-radius:var(--radius-sm);outline:none;
  }
  .tool-tile{
    display:flex;align-items:center;justify-content:center;
    width:var(--tool-tile);height:var(--tool-tile);
    border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--bg);box-shadow:var(--tool-shadow);
    transition:border-color .16s ease,transform .16s ease;
  }
  .tool-tile img{width:var(--tool-icon);height:var(--tool-icon);object-fit:contain}
  .tool:focus-visible .tool-tile{outline:2px solid var(--ink);outline-offset:2px}
  .tool-name{
    position:absolute;bottom:calc(100% + 2px);left:calc((var(--tool-hit) - var(--tool-tile)) / 2);z-index:5;
    padding:5px 10px;border-radius:var(--radius-sm);background:var(--tooltip-bg);color:var(--tooltip-ink);
    font-size:var(--fs-tooltip);line-height:1.3;font-weight:var(--fw-medium);white-space:nowrap;
    opacity:0;transform:translateY(4px);pointer-events:none;
    transition:opacity .16s ease,transform .16s ease;
  }
  .tool-name::after{
    content:"";position:absolute;top:100%;left:calc(var(--tool-tile) / 2 - 5px);
    border:5px solid transparent;border-top-color:var(--tooltip-bg);
  }
  .tool.is-tipped .tool-name,.tool:focus-visible .tool-name{opacity:1;transform:none}
  .tool.is-tipped .tool-tile{border-color:var(--muted);transform:translateY(-1px)}
  .cs-index{display:flex;flex-direction:column;padding-top:32px;border-top:1px solid var(--line)}
  .cs-index .cs-label{padding-bottom:10px}
  .cs-index a{
    display:flex;align-items:center;gap:12px;padding:6px 0;
    font-size:var(--fs-nav);line-height:1.35;color:var(--muted);
    transition:color .16s ease;
  }
  .cs-index a::before{content:"";flex:0 0 2px;height:16px;border-radius:1px;background:transparent;transition:background .16s ease}
  .cs-index a:hover{color:var(--ink)}
  .cs-index a[aria-current="true"]{color:var(--ink);font-weight:var(--fw-medium)}
  .cs-index a[aria-current="true"]::before{background:var(--ink)}

  .cs-content{display:flex;flex-direction:column;gap:var(--cs-section-gap);min-width:0}
  .cs-section{display:flex;flex-direction:column;gap:20px;scroll-margin-top:var(--cs-sticky-top)}
  .cs-h2{font-size:var(--fs-cs-h2);line-height:var(--lh-snug);font-weight:var(--fw-semibold);letter-spacing:-.015em}
  .cs-h3{font-size:var(--fs-cs-h3);line-height:1.45;font-weight:var(--fw-semibold);color:var(--ink)}
  :where(.cs-section,.cs-block) p{font-size:var(--fs-cs-body);line-height:1.65;color:var(--body)}
  .cs-block{display:flex;flex-direction:column;gap:14px;padding-top:16px}

  .cs-list{display:flex;flex-direction:column;gap:10px;list-style:none}
  .cs-list li{position:relative;padding-left:18px;font-size:var(--fs-cs-list);line-height:1.6;color:var(--body)}
  .cs-list li::before{content:"";position:absolute;left:2px;top:.72em;width:5px;height:5px;border-radius:50%;background:var(--muted)}
  .cs-list li strong{color:var(--ink);font-weight:var(--fw-semibold)}

  /* figures */
  .cs-figure{display:flex;flex-direction:column;gap:12px;padding-top:12px}
  .cs-figure figcaption{font-size:var(--fs-small);line-height:1.45;color:var(--muted)}
  .cs-ph{aspect-ratio:16/9;width:100%;border-radius:var(--radius-figure);background:var(--chip);overflow:hidden}
  .cs-ph img,.cs-ph video{width:100%;height:100%;object-fit:cover}
  .cs-ph--wide{aspect-ratio:16/8}
  .cs-ph--dark{background:var(--screen-dark)}
  .cs-ph--brand{
    padding:clamp(20px,3vw,40px);
    background:linear-gradient(145deg,var(--case-g1),var(--case-g2),var(--case-g3));
  }
  .cs-ph--brand::after{content:"";display:block;width:100%;height:100%;border-radius:var(--radius-media);background:var(--media-veil)}
  .cs-ph--fit{display:block;aspect-ratio:auto;border:1px solid var(--line);background:var(--bg)}
  .cs-ph--fit img{height:auto}
  a.cs-ph:focus-visible{outline:2px solid var(--ink);outline-offset:4px}
  [data-lift]{box-shadow:var(--lift-shadow)}

  /* slideshow video with pause/play overlay */
  .cs-media{position:relative}
  .cs-media-toggle{
    position:absolute;right:12px;bottom:12px;
    display:flex;align-items:center;justify-content:center;
    width:var(--toggle-size);height:var(--toggle-size);padding:0;border:0;border-radius:50%;
    background:var(--toggle-bg);color:var(--toggle-ink);cursor:pointer;
    backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
  }
  .cs-media-toggle svg{width:var(--toggle-icon);height:var(--toggle-icon)}
  .cs-media-toggle .icon-play,.cs-media-toggle.is-paused .icon-pause{display:none}
  .cs-media-toggle.is-paused .icon-play{display:block}
  .cs-media-toggle:focus-visible{outline:2px solid var(--toggle-ink);outline-offset:-4px;opacity:1}

  /* tabs: shared mechanics; the indicator is positioned by case.js */
  .tabs{display:flex;flex-direction:column;gap:20px}
  .tabs-list{position:relative;display:flex;max-width:100%;overflow-x:auto;scrollbar-width:none}
  .tabs-list::-webkit-scrollbar{display:none}
  .tabs-tab{
    position:relative;z-index:1;flex:0 0 auto;min-height:var(--tab-h);padding:0 4px;
    border:0;background:none;font:inherit;font-size:var(--fs-nav);font-weight:var(--fw-medium);
    color:var(--muted);white-space:nowrap;cursor:pointer;
  }
  .tabs-tab:focus-visible{outline:2px solid var(--ink);outline-offset:-2px;border-radius:var(--radius-sm)}
  .tabs-indicator{position:absolute;left:0;bottom:0;width:0;pointer-events:none}
  .tabs-panel{display:flex;flex-direction:column;gap:16px}
  .tabs-panel[hidden]{display:none}
  .tabs-panel:focus-visible{outline:2px solid var(--ink);outline-offset:6px;border-radius:var(--radius-sm)}

  .tabs--underline .tabs-list{gap:28px;border-bottom:1px solid var(--line)}
  .tabs--underline .tabs-indicator{height:var(--tab-indicator);background:var(--ink)}

  .tabs--segment .tabs-list,.tabs--pill .tabs-list{align-self:flex-start;gap:4px;padding:4px;border-radius:var(--radius-pill);background:var(--tab-track)}
  .tabs--segment .tabs-tab,.tabs--pill .tabs-tab{padding:0 18px}
  .tabs--segment .tabs-indicator,.tabs--pill .tabs-indicator{top:4px;bottom:4px;border-radius:var(--radius-pill)}
  .tabs--segment .tabs-indicator{background:var(--tab-thumb-light);box-shadow:var(--tab-thumb-shadow)}
  .tabs--pill .tabs-indicator{background:var(--tab-thumb-dark)}
  .tabs--pill .tabs-tab[aria-selected="true"]:hover{color:var(--bg)}

  .cs-block-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px 20px}
  .ba-notes{display:flex;flex-direction:column;gap:10px;padding-top:4px}
  .cs-list--check li::before{
    top:.5em;left:1px;width:10px;height:5px;border-radius:0;background:none;
    border-left:2px solid var(--ink);border-bottom:2px solid var(--ink);transform:rotate(-45deg);
  }

  /* before/after: clicking the frame flips the before layer in and out */
  .ba-hold{display:flex;flex-direction:column;gap:12px}
  .ba-frame{position:relative;border-radius:var(--radius-figure);background:var(--chip);overflow:hidden;cursor:pointer;-webkit-touch-callout:none}
  .ba-after{display:block;width:100%;height:auto}
  .ba-before{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:var(--chip);opacity:0}
  .ba-badge{
    display:inline-flex;justify-content:center;min-width:64px;padding:4px 10px;border-radius:var(--radius-pill);
    background:var(--ink);color:var(--bg);
    font-size:var(--fs-cs-label);line-height:1.2;font-weight:var(--fw-semibold);letter-spacing:var(--ls-eyebrow);text-transform:uppercase;
  }
  .ba-bar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:4px 16px}
  .ba-hint{display:flex;align-items:center;flex-wrap:wrap;gap:6px 10px;font-size:var(--fs-small);line-height:1.45;color:var(--muted)}
  .ba-caption{font-size:var(--fs-nav);line-height:1.6;color:var(--body)}

  /* headline metric */
  .cs-callout{
    display:grid;grid-template-columns:auto minmax(0,1fr);gap:clamp(20px,3vw,40px);align-items:center;
    padding:clamp(24px,3.5vw,40px);border-radius:var(--radius-figure);
    background:linear-gradient(145deg,var(--case-g1),var(--case-g2),var(--case-g3));
  }
  .cs-callout-num{font-size:var(--fs-cs-callout);line-height:1;font-weight:var(--fw-semibold);letter-spacing:-.04em;color:var(--ink)}
  .cs-callout-body{display:flex;flex-direction:column;gap:8px}
  .cs-callout-body p{color:var(--ink)}
  .cs-subhead{padding-top:12px}

  /* team chips in the fact rail */
  .team-list{display:flex;flex-direction:column;gap:8px;margin-top:4px;list-style:none}
  .team-member{
    display:flex;align-items:center;gap:10px;padding:8px 12px 8px 8px;
    border:1px solid var(--line);border-radius:var(--radius-md);background:var(--bg);
  }
  .team-avatar{
    display:flex;align-items:center;justify-content:center;flex:0 0 var(--team-avatar);height:var(--team-avatar);
    border-radius:50%;background:var(--chip);color:var(--body);
    font-size:var(--fs-cs-label);font-weight:var(--fw-semibold);letter-spacing:.02em;
  }
  .team-avatar svg{width:16px;height:16px}
  .team-avatars{display:flex;flex:0 0 auto}
  .team-avatars .team-avatar + .team-avatar{margin-left:calc(var(--team-avatar) / -3);box-shadow:0 0 0 2px var(--bg)}
  .team-avatar--me{background:linear-gradient(145deg,var(--case-g1),var(--case-g2));color:var(--ink)}
  .team-text{display:flex;flex-direction:column;min-width:0}
  .team-name{font-size:var(--fs-meta);line-height:1.3;font-weight:var(--fw-semibold);color:var(--ink)}
  .team-role{font-size:var(--fs-cs-tag);line-height:1.35;color:var(--body)}
  .team-with{margin-top:14px;font-size:var(--fs-cs-tag);line-height:1.35;color:var(--body)}
  .team-pills{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px;list-style:none}
  .team-pills li{
    padding:5px 11px;border:1px solid var(--line);border-radius:var(--radius-pill);background:var(--bg);
    font-size:var(--fs-cs-tag);line-height:1.35;color:var(--ink);
  }

  /* two-up layouts */
  .cs-split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 40px}
  .cs-split--tight{gap:16px 24px}
  .cs-split > div{display:flex;flex-direction:column;gap:12px;min-width:0}
  .cs-pg{padding-top:20px;border-top:1px solid var(--ink)}
  .cs-pg p{font-size:var(--fs-cs-quote);line-height:1.5;letter-spacing:-.01em;color:var(--ink)}
  .cs-split .cs-label--ink{color:var(--ink)}

  .cs-quote{
    padding:28px 0 28px 28px;border-left:2px solid var(--case-g1);
    font-size:var(--fs-cs-quote);line-height:1.5;letter-spacing:-.015em;color:var(--ink);
  }

  /* numbered / labeled rows */
  .cs-rows{display:flex;flex-direction:column;list-style:none;padding-top:8px}
  .cs-rows li{display:flex;gap:24px;padding:24px 0;border-top:1px solid var(--line)}
  .cs-rows li:last-child{border-bottom:1px solid var(--line)}
  .cs-rows .cs-row-key{flex:0 0 32px;font-size:var(--fs-nav);line-height:1.7;font-weight:var(--fw-semibold);color:var(--muted)}
  .cs-rows--named .cs-row-key{flex-basis:180px;font-size:var(--fs-cs-list);color:var(--ink)}
  .cs-rows .cs-row-body{display:flex;flex-direction:column;gap:6px;min-width:0}
  .cs-rows .cs-row-body p{font-size:var(--fs-cs-list)}
  .cs-rows .cs-h3 + p{font-size:var(--fs-cs-body)}

  /* finding cards */
  .cs-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;padding-top:12px;list-style:none}
  .cs-card{display:flex;flex-direction:column;gap:10px;padding:24px;border-radius:var(--radius-figure);background:var(--chip)}
  .cs-card p{font-size:var(--fs-nav);line-height:1.6}
  .cs-card-icon{
    display:flex;align-items:center;justify-content:center;width:40px;height:40px;margin-bottom:6px;
    border-radius:var(--radius-sm);background:var(--bg);color:var(--ink);
  }
  .cs-card-icon svg{width:20px;height:20px}

  /* numbered findings (revealed in sequence by case.js) */
  .findings{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;padding-top:12px;list-style:none}
  .finding{
    position:relative;display:flex;flex-direction:column;gap:14px;padding:24px;overflow:hidden;
    border:1px solid var(--line);border-radius:var(--radius-figure);background:var(--bg);
  }
  .finding::before{content:"";position:absolute;inset:0 0 auto;height:var(--finding-edge);background:var(--case-ink,var(--ink))}
  .finding-num{font-size:var(--fs-finding-num);line-height:1;font-weight:var(--fw-semibold);letter-spacing:-.04em;color:var(--case-ink,var(--ink))}
  .finding p{font-size:var(--fs-nav);line-height:1.6;color:var(--ink)}

  /* phone carousel: GSAP in case.js places slides around the current one */
  .carousel{display:flex;flex-direction:column;gap:16px}
  .carousel-stage{
    overflow:hidden;padding:clamp(24px,4vw,48px) 0;border-radius:var(--radius-figure);
    background:linear-gradient(145deg,var(--case-g1),var(--case-g2),var(--case-g3));
  }
  .carousel-track{display:grid;justify-items:center;list-style:none}
  .carousel-slide{grid-area:1 / 1;height:var(--phone-h)}
  .carousel-slide.is-neighbor{cursor:pointer}
  .carousel-slide img,.carousel-slide video{display:block;width:auto;max-width:none;height:100%;-webkit-user-drag:none}
  /* frameless video screen, rounded like the static screens; a darker edge marks it as a video */
  .carousel-slide--video video{aspect-ratio:390 / 844;border-radius:9.4% / 4.4%;background:var(--bg);box-shadow:0 0 0 2px rgba(23,24,26,.7),0 12px 28px -14px rgba(23,24,26,.35)}
  .carousel-bar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px 24px}
  .carousel-caption{flex:1 1 240px;font-size:var(--fs-small);line-height:1.45;color:var(--muted)}
  .carousel-controls{display:flex;align-items:center;gap:8px}
  .carousel-btn{
    display:flex;align-items:center;justify-content:center;flex:0 0 var(--carousel-btn);height:var(--carousel-btn);padding:0;
    border:1px solid var(--line);border-radius:50%;background:var(--bg);color:var(--ink);cursor:pointer;
  }
  .carousel-btn svg{width:var(--carousel-icon);height:var(--carousel-icon)}
  .carousel-btn:focus-visible,.carousel-dot:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
  .carousel-pause .icon-play,.carousel-pause.is-paused .icon-pause{display:none}
  .carousel-pause.is-paused .icon-play{display:block}
  .carousel-dots{display:flex;align-items:center}
  .carousel-dot{
    display:flex;align-items:center;justify-content:center;min-width:var(--dot-hit);height:var(--carousel-btn);
    padding:0 4px;border:0;border-radius:var(--radius-sm);background:none;cursor:pointer;
  }
  .carousel-dot-bar{
    position:relative;display:block;width:var(--dot);height:var(--dot);overflow:hidden;
    border-radius:var(--radius-pill);background:var(--dot-track);transition:width .3s var(--ease-out);
  }
  .carousel-dot[aria-current="true"] .carousel-dot-bar{width:var(--dot-active)}
  .carousel-dot-fill{position:absolute;inset:0;background:var(--ink);transform:scaleX(0);transform-origin:left center}

  /* wide screens: one at a time, crossfaded */
  .carousel--fade .carousel-stage{padding:clamp(14px,3vw,32px)}
  .carousel--fade .carousel-track{justify-items:stretch}
  .carousel--fade .carousel-slide{height:auto}
  .carousel--fade .carousel-slide img{width:100%;max-width:100%;height:auto;border-radius:var(--radius-media);box-shadow:var(--lift-shadow-hover)}

  /* annotated before/after: numbered outlines on the screen, matching notes beside it */
  .ba-annotated{--ba-pad:clamp(14px,3vw,32px);gap:24px}
  .ba-media{display:flex;flex-direction:column;gap:12px;min-width:0}
  .ba-annotated .ba-frame{padding:var(--ba-pad);background:linear-gradient(145deg,var(--case-g1),var(--case-g2),var(--case-g3))}
  .ba-annotated .ba-after{position:relative;border-radius:var(--radius-media);box-shadow:var(--lift-shadow-hover)}
  .ba-annotated .ba-before{inset:var(--ba-pad);width:auto;height:auto;background:none}
  .ba-annotated .ba-after img,.ba-annotated .ba-before img{display:block;width:100%;height:auto;border-radius:var(--radius-media)}
  .ba-annotated[data-showing="before"] .ba-badge{background:var(--verdict-bad)}
  .ba-annotated[data-showing="after"] .ba-badge{background:var(--verdict-good)}
  .ba-mark{
    position:absolute;border:var(--mark-border) solid var(--mark);border-radius:4px;
    box-shadow:0 0 0 3px rgba(0,0,0,.35);transition:opacity .2s ease;
  }
  .ba-mark--bad{--mark:var(--mark-bad)}
  .ba-mark--good{--mark:var(--mark-good)}
  .ba-mark-num{
    position:absolute;top:6px;left:calc(var(--mark-num) * -1 - 6px);
    display:flex;align-items:center;justify-content:center;width:var(--mark-num);height:var(--mark-num);
    border-radius:50%;background:var(--mark);color:var(--mark-ink);
    font-size:var(--fs-cs-label);line-height:1;font-weight:var(--fw-semibold);
  }
  .ba-mark-num--mid{top:50%;transform:translateY(-50%)}
  .ba-annotated[data-focus-mark] .ba-mark{opacity:.2}
  .ba-annotated[data-focus-mark="1"] .ba-mark[data-mark="1"],
  .ba-annotated[data-focus-mark="2"] .ba-mark[data-mark="2"]{opacity:1}
  .soc-mark-sev-before{left:13.6%;top:20.2%;width:5.6%;height:75%}
  .soc-mark-status-before{left:69.4%;top:20.2%;width:5.6%;height:75%}
  .soc-mark-bar-before{left:13.1%;top:16.1%;width:86%;height:3.6%}
  .soc-mark-cols-after{left:13.1%;top:20.4%;width:13.4%;height:74.8%}
  .soc-mark-bar-after{left:12.9%;top:16.3%;width:86.2%;height:3.6%}

  .ba-explain-set{display:flex;flex-direction:column;gap:14px}
  .ba-explain-set[hidden]{display:none}
  .ba-explain-title{font-size:var(--fs-cs-label);line-height:1.3;font-weight:var(--fw-semibold);letter-spacing:var(--ls-eyebrow);text-transform:uppercase}
  .ba-explain-title--bad{color:var(--verdict-bad)}
  .ba-explain-title--good{color:var(--verdict-good)}
  .ba-points{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:12px;list-style:none}
  .ba-points li{
    display:flex;gap:12px;padding:14px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--bg);
    transition:border-color .2s ease,background-color .2s ease;
  }
  [data-showing="before"] .ba-points li{border-left:3px solid var(--verdict-bad)}
  [data-showing="after"] .ba-points li{border-left:3px solid var(--verdict-good)}
  .ba-annotated[data-focus-mark="1"] .ba-points li[data-mark="1"],
  .ba-annotated[data-focus-mark="2"] .ba-points li[data-mark="2"]{background:var(--chip)}
  .ba-point-num{
    display:flex;align-items:center;justify-content:center;flex:0 0 var(--mark-num);height:var(--mark-num);margin-top:1px;
    border-radius:50%;background:var(--ink);color:var(--bg);font-size:var(--fs-cs-label);line-height:1;font-weight:var(--fw-semibold);
  }
  [data-showing="before"] .ba-point-num{background:var(--verdict-bad)}
  [data-showing="after"] .ba-point-num{background:var(--verdict-good)}
  .ba-point-title{font-size:var(--fs-nav);line-height:1.4;font-weight:var(--fw-semibold);color:var(--ink)}
  .ba-points p{margin-top:4px;font-size:var(--fs-small);line-height:1.55;color:var(--body)}
  /* SUS meter: fill and count-up run once on scroll (case.js) */
  .sus{display:flex;flex-direction:column;gap:16px;padding:28px 0;border-top:1px solid var(--ink);border-bottom:1px solid var(--line)}
  .sus-head{display:flex;align-items:center;gap:2px}
  .sus-title{font-size:var(--fs-cs-label);line-height:1.3;font-weight:var(--fw-semibold);letter-spacing:var(--ls-eyebrow);text-transform:uppercase;color:var(--ink)}
  .sus-body{display:grid;grid-template-columns:auto minmax(0,1fr);gap:16px 32px;align-items:start}
  .sus-score{display:flex;flex-direction:column;align-items:flex-start;gap:8px}
  .sus-value{display:flex;align-items:baseline;gap:6px;color:var(--ink)}
  .sus-num{min-width:4.2ch;font-size:var(--fs-sus);line-height:1;font-weight:var(--fw-semibold);letter-spacing:-.03em;font-variant-numeric:tabular-nums}
  .sus-max{font-size:var(--fs-nav);color:var(--body)}
  .sus-badge{
    padding:4px 10px;border-radius:var(--radius-sm);background:var(--sus-fill);color:var(--bg);
    font-size:var(--fs-cs-label);line-height:1.2;font-weight:var(--fw-semibold);
  }
  .sus-scale{padding-top:calc(var(--fs-sus) / 2 - var(--sus-h) / 2)}
  .sus-track{position:relative;height:var(--sus-h);border-radius:var(--radius-pill);background:var(--sus-track);overflow:hidden}
  .sus-fill{position:absolute;inset:0 auto 0 0;width:var(--sus-score,0%);border-radius:inherit;background:var(--sus-fill)}
  .sus-tick{position:absolute;top:0;bottom:0;width:2px;margin-left:-1px;background:var(--bg)}
  .sus-marks{position:relative;height:var(--carousel-btn);margin-top:2px}
  .sus-mark,.sus-marks .tip{position:absolute;top:0;display:flex;align-items:center;height:100%;font-size:var(--fs-small);color:var(--body);white-space:nowrap}
  .sus-at-0{left:0}
  .sus-at-avg{left:68%}
  .sus-at-good{left:80.3%}
  .sus-at-100{right:0}
  .sus-marks .sus-at-avg{transform:translateX(-100%)}
  .sus-at-avg .sus-mark-btn{text-align:right}
  .sus-mark-btn{
    min-width:var(--carousel-btn);min-height:var(--carousel-btn);padding:0 6px;border:0;text-align:left;border-radius:var(--radius-sm);background:none;
    font:inherit;font-size:var(--fs-small);color:var(--body);cursor:help;
    text-decoration:underline dotted;text-underline-offset:4px;
  }
  .cs-stats.cs-stats--3{grid-template-columns:repeat(3,minmax(0,1fr));border-top:0}

  /* tooltips: hover (mouse), keyboard focus or tap */
  .tip{position:relative;display:inline-flex}
  .tip-btn:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
  .sus-info{
    display:flex;align-items:center;justify-content:center;width:var(--carousel-btn);height:var(--carousel-btn);
    padding:0;border:0;border-radius:50%;background:none;color:var(--muted);cursor:help;
  }
  .sus-info svg{width:16px;height:16px}
  .tip-bubble{
    position:absolute;bottom:calc(100% + 4px);left:0;z-index:5;width:max-content;max-width:min(var(--tip-w),60vw);
    padding:8px 12px;border-radius:var(--radius-sm);background:var(--tooltip-bg);color:var(--tooltip-ink);
    font-size:var(--fs-tooltip);line-height:1.45;font-weight:var(--fw-medium);white-space:normal;text-align:left;
    opacity:0;visibility:hidden;transform:translateY(4px);pointer-events:none;
    transition:opacity .16s ease,transform .16s ease,visibility .16s;
  }
  .tip-bubble--end{left:auto;right:0}
  .tip.is-tipped .tip-bubble{opacity:1;visibility:visible;transform:none}

  /* worked / didn't work headings */
  .cs-verdict{display:flex;align-items:center;gap:10px}
  .cs-verdict-icon{display:flex;align-items:center;justify-content:center;flex:0 0 22px;height:22px;border-radius:6px;color:var(--bg)}
  .cs-verdict-icon svg{width:14px;height:14px}
  .cs-verdict-icon--yes{background:var(--verdict-good)}
  .cs-verdict-icon--no{background:var(--verdict-bad)}

  /* stats */
  .cs-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;padding:28px 0;border-top:1px solid var(--ink);border-bottom:1px solid var(--line)}
  .cs-stat{display:flex;flex-direction:column;gap:6px}
  .cs-stat strong{font-size:var(--fs-cs-stat);line-height:1.1;font-weight:var(--fw-semibold);letter-spacing:-.03em;color:var(--ink)}
  .cs-stat span{font-size:var(--fs-small);line-height:1.45;color:var(--body)}

  /* more case studies */
  .cs-more{padding-top:var(--cs-section-gap);border-top:1px solid var(--line)}
  .case-page footer{margin-top:120px}

  @media (max-width:1279px){
    .cs-body{--cs-rail-max:240px}
  }
  @media (max-width:1023px){
    .cs-hero{padding-top:48px}
    .cs-body{grid-template-columns:minmax(0,1fr);gap:48px}
    .cs-rail{position:static}
    .cs-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-auto-flow:row dense;gap:20px 24px}
    .cs-fact--wide{grid-column:1 / -1}
    .tabs{--tab-h:44px}
    .team-list{flex-direction:row;flex-wrap:wrap}
    .team-member{flex:1 1 200px}
    .cs-index{display:none}
    .cs-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 24px}
    .cs-stats--3{grid-template-columns:repeat(3,minmax(0,1fr))}
  }
  @media (max-width:767px){
    .cs-cover{aspect-ratio:4/3}
    .cs-facts{grid-template-columns:minmax(0,1fr)}
    .cs-split,.cs-split--tight{grid-template-columns:minmax(0,1fr)}
    .cs-rows--named li{flex-direction:column;gap:6px}
    .cs-rows--named .cs-row-key{flex-basis:auto}
    .cs-quote{padding:20px 0 20px 20px}
    .cs-callout{grid-template-columns:minmax(0,1fr);gap:12px}
    .carousel-bar{flex-direction:column;align-items:stretch}
    .carousel-caption{flex:none;text-align:center}
    .carousel-controls{justify-content:center}
    .carousel-dot{pointer-events:none}
    .sus-body{grid-template-columns:minmax(0,1fr)}
    .sus-score{flex-direction:row;align-items:center;gap:12px}
    .sus-scale{padding-top:0}
    .sus-mark-text{display:none}
    .cs-body{padding-bottom:80px}
    .case-page footer{margin-top:80px}
  }
  @media (max-width:479px){
    .cs-rows li{gap:16px}
    .cs-card,.finding{padding:20px}
    .tabs--underline .tabs-list{gap:20px}
    .tabs--segment .tabs-tab,.tabs--pill .tabs-tab{padding:0 12px;font-size:var(--fs-meta)}
  }

  /* ---------- ABOUT PAGE ---------- */
  .about-hero{
    display:grid;grid-template-columns:minmax(0,1fr) var(--portrait-w);
    grid-template-areas:"head head" "copy photo";
    gap:28px clamp(40px,6vw,80px);align-items:start;
    padding-top:72px;
  }
  .about-head{grid-area:head;display:flex;flex-direction:column;gap:8px}
  .about-title{font-size:var(--fs-about-title);line-height:1.1;font-weight:var(--fw-medium);letter-spacing:-.025em}
  .about-sub{font-size:var(--fs-about-sub);line-height:1.5;letter-spacing:-.025em;color:var(--ink)}
  .grad-text{
    font-weight:var(--fw-semibold);color:transparent;
    background:var(--about-grad);background-size:240% 240%;
    -webkit-background-clip:text;background-clip:text;
    animation:grad-shift 6s ease-in-out infinite;
  }
  @keyframes grad-shift{
    0%,100%{background-position:0% 50%}
    50%{background-position:100% 50%}
  }
  .about-copy{grid-area:copy;display:flex;flex-direction:column;gap:30px}
  .about-copy p{font-size:var(--fs-lede);line-height:1.67;color:var(--ink)}

  .polaroid{padding:16px 16px 40px;border-radius:4px;background:var(--polaroid-bg);box-shadow:var(--polaroid-shadow)}
  .polaroid img{display:block;width:100%;height:100%;object-fit:cover;background:var(--chip)}
  .about-portrait{grid-area:photo;width:100%;rotate:0deg;scale:1;transition:rotate .45s var(--ease-out),scale .45s var(--ease-out),box-shadow .45s var(--ease-out)}
  .about-portrait:hover{rotate:var(--portrait-tilt);scale:1.05;box-shadow:0 18px 36px -12px rgba(0,0,0,.28)}
  .about-portrait img{aspect-ratio:801/751;height:auto;object-position:50% 30%}

  .about-cv{
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:48px clamp(40px,6vw,80px);
    padding-top:var(--about-section-gap);
  }
  .about-col{display:flex;flex-direction:column;gap:24px}
  .about-h2{font-size:var(--fs-about-h2);line-height:1.4;font-weight:var(--fw-regular);letter-spacing:-.025em}
  .about-list{display:flex;flex-direction:column;gap:28px;list-style:none}
  .about-item{display:grid;grid-template-columns:var(--about-logo) minmax(0,1fr);gap:16px;align-items:start}
  .about-logo{width:var(--about-logo);height:var(--about-logo);object-fit:contain}
  .about-logo--tile{border-radius:10px;object-fit:cover}
  .about-item-title{font-size:var(--fs-about-item);line-height:1.25;font-weight:var(--fw-regular);letter-spacing:-.02em;color:var(--ink)}
  .about-item-meta{margin-top:4px;font-size:var(--fs-body);line-height:1.5;color:var(--body)}
  .about-item-meta + .about-item-meta{margin-top:0}
  .about-col .cta-row{margin-top:auto;padding-top:16px}

  .about-outside{display:flex;flex-direction:column;gap:20px;padding-top:var(--about-section-gap)}

  /* Endless photo strip: two identical sets, the track slides by exactly one set. */
  .photo-strip{overflow:hidden;padding:56px 0 var(--about-section-gap)}
  .photo-track{display:flex;width:max-content;animation:marquee var(--marquee-duration) linear infinite}
  .photo-strip:hover .photo-track{animation-play-state:paused}
  .photo-set{display:flex;gap:var(--polaroid-gap);padding:12px var(--polaroid-gap) 12px 0;list-style:none}
  .photo-set .polaroid{flex:0 0 auto}
  .photo-set img{width:var(--polaroid-img);height:var(--polaroid-img)}
  .photo-set li:nth-child(1){transform:rotate(-2deg)}
  .photo-set li:nth-child(2){transform:rotate(-5.2deg)}
  .photo-set li:nth-child(3){transform:rotate(1.8deg)}
  .photo-set li:nth-child(4){transform:rotate(-3.3deg)}
  .photo-set li:nth-child(5){transform:rotate(-4.2deg)}
  .photo-set li:nth-child(6){transform:rotate(2deg)}
  .photo-set li:nth-child(7){transform:rotate(-4.5deg)}
  .photo-set li:nth-child(8){transform:rotate(-3deg)}
  .photo-set li:nth-child(9){transform:rotate(1.7deg)}
  @keyframes marquee{to{transform:translateX(-50%)}}

  header nav a[aria-current="page"]{color:var(--ink)}

  @media (max-width:1023px){
    .about-hero{gap:24px 40px}
  }
  @media (max-width:767px){
    .about-hero{
      grid-template-columns:minmax(0,1fr);
      grid-template-areas:"head" "photo" "copy";
      padding-top:48px;
    }
    .about-portrait{width:min(240px,70%);justify-self:center;margin:16px 0 12px}
    .about-copy{gap:22px}
    .about-cv{grid-template-columns:minmax(0,1fr)}
    .photo-strip{padding-top:40px}
  }

  /* ---------- PLAYGROUND PAGE (playground.html + experiment.html) ---------- */
  :root{
    --fs-pg-title:var(--fs-about-title);
    --fs-pg-lede:clamp(18px,1.8vw,22px);
    --fs-pg-detail:clamp(28px,3vw,40px);
    --pg-col-gap:var(--case-gap-col);
    --pg-row-gap:clamp(20px,2.4vw,32px);
    --pg-stagger:clamp(32px,5vw,72px);   /* left column starts lower than the right */
    --pg-wide:3/2;                        /* card proportions */
    --pg-tall:6/5;
    --pg-modal-w:960px;
    --pg-modal-gap:32px;                  /* space between pop-up and window edge */
    --pg-modal-media-h:clamp(220px,54vh,540px);
    --pg-modal-pad:clamp(28px,3.4vw,40px);
    --pg-backdrop:rgba(23,24,26,.5);
  }

  .pg-hero{padding-top:72px}
  .pg-title{font-size:var(--fs-pg-title);line-height:1.1;font-weight:var(--fw-medium);letter-spacing:-.025em}
  .pg-lede{margin-top:20px;font-size:var(--fs-pg-lede);line-height:1.5;letter-spacing:-.01em;color:var(--ink)}
  .pg-block{padding-top:clamp(40px,5vw,64px)}

  /* staggered two-column grid */
  .pg-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:var(--pg-col-gap);align-items:start}
  .pg-col{display:flex;flex-direction:column;gap:var(--pg-row-gap);min-width:0}
  .pg-col:first-child{padding-top:var(--pg-stagger)}

  .pg-card{display:block;min-width:0}
  .pg-thumb{
    position:relative;overflow:hidden;
    border-radius:var(--radius-card);
    background:var(--pg-color,var(--chip));
  }
  .pg-thumb--wide{aspect-ratio:var(--pg-wide)}
  .pg-thumb--tall{aspect-ratio:var(--pg-tall)}
  .pg-thumb-media{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease-out)}

  /* placeholder until real media is added (set thumb / video in playground.js) */
  .pg-ph{
    width:100%;height:100%;
    display:flex;align-items:center;justify-content:center;
    font-size:var(--fs-small);font-weight:var(--fw-medium);letter-spacing:.02em;
  }
  .pg-ph[data-ink="dark"]{color:rgba(23,24,26,.4)}
  .pg-ph[data-ink="light"]{color:rgba(255,255,255,.7)}
  .pg-ph span{padding:6px 12px;border:1px dashed currentColor;border-radius:var(--radius-pill)}

  /* caption mirrors the work cards: title in ink, line in muted, arrow slides in on hover */
  .pg-cap{margin-top:14px;font-size:var(--fs-caption);line-height:1.45;color:var(--muted);transition:color .2s ease}
  .pg-cap-title{color:var(--ink);font-weight:var(--fw-semibold)}
  .pg-card:focus-visible{outline:none}
  .pg-card:focus-visible .pg-thumb{outline:2px solid var(--ink);outline-offset:4px}
  .pg-card:focus-visible .pg-thumb-media{transform:scale(var(--case-zoom))}
  .pg-card:focus-visible .pg-cap{color:var(--ink)}
  .pg-card:focus-visible .case-arrow{opacity:1;transform:none}
  .pg-card:hover .pg-thumb-media{transform:scale(var(--case-zoom))}
  .pg-card:hover .pg-cap{color:var(--ink)}
  .pg-card:hover .case-arrow{opacity:1;transform:none}

  /* shared detail content (pop-up + phone page); body text uses the case-study classes */
  .pg-media{background:var(--pg-color,var(--chip));overflow:hidden}
  .pg-hero-media{width:100%;height:100%;object-fit:contain;display:block}
  .pg-detail-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px 24px}
  .pg-detail-title{font-size:var(--fs-pg-detail);line-height:var(--lh-tight);font-weight:var(--fw-semibold);letter-spacing:-.03em}
  .pg-detail-sub{margin-top:10px}
  .pg-try{flex:0 0 auto;white-space:nowrap}
  .pg-modal-body,.pg-page-body{display:flex;flex-direction:column;gap:clamp(32px,4vw,44px)}
  .pg-modal-body .cs-section,.pg-page-body .cs-section{gap:14px}
  .pg-modal-body .cs-rows,.pg-page-body .cs-rows{padding-top:0}

  /* desktop pop-up: video pinned on top, text scrolls under it */
  .pg-modal{
    width:min(var(--pg-modal-w),calc(100vw - 2 * var(--pg-modal-gap)));
    max-width:none;max-height:calc(100dvh - 2 * var(--pg-modal-gap));
    margin:auto;padding:0;border:0;
    border-radius:var(--radius-lg);
    background:var(--bg);color:var(--ink);
    overflow:hidden;
    box-shadow:0 30px 80px -20px rgba(20,22,26,.4);
  }
  .pg-modal[open]{display:flex;flex-direction:column;animation:pg-pop .32s var(--ease-out)}
  .pg-modal::backdrop{background:var(--pg-backdrop);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}
  .pg-modal[open]::backdrop{animation:pg-fade .25s ease}
  @keyframes pg-pop{from{opacity:0;transform:translateY(16px) scale(.98)}to{opacity:1;transform:none}}
  @keyframes pg-fade{from{opacity:0}to{opacity:1}}
  html:has(.pg-modal[open]){overflow:hidden}

  .pg-modal-scroll{display:flex;flex-direction:column;min-height:0;flex:1 1 auto}
  .pg-modal-media{flex:0 0 auto;height:var(--pg-modal-media-h)}
  .pg-modal-body{
    flex:1 1 auto;min-height:0;overflow-y:auto;overscroll-behavior:contain;
    padding:var(--pg-modal-pad);
    border-top:1px solid var(--line);
  }
  .pg-close{
    position:absolute;top:16px;right:16px;z-index:2;
    width:var(--toggle-size);height:var(--toggle-size);
    display:flex;align-items:center;justify-content:center;
    border:0;border-radius:50%;cursor:pointer;
    background:rgba(255,255,255,.92);color:var(--ink);
    box-shadow:0 2px 8px rgba(0,0,0,.14);
  }
  .pg-close:focus-visible{outline:2px solid var(--ink);outline-offset:3px}

  /* hover details that override base styles live here (styles.css outranks Tailwind's layer);
     movement-only hovers are Tailwind classes in playground.js / playground.html */
  .pg-try{transition:transform .16s ease,background-color .2s ease}
  .pg-close{transition-property:transform,background-color}
  .pg-try:hover{background:var(--blue)}
  .pg-close:hover{background:var(--bg)}
  :is(.pg-modal-body,.pg-page-body) .cs-rows li .cs-row-key{transition:color .2s ease}
  :is(.pg-modal-body,.pg-page-body) .cs-rows li:hover .cs-row-key{color:var(--ink)}

  /* phone page (experiment.html) */
  .pg-page{min-height:100vh;max-width:calc(860px + 2 * var(--page-pad));padding-top:16px;padding-bottom:80px}
  .pg-page-media{margin-top:8px;aspect-ratio:4/3;border-radius:var(--radius-card)}
  .pg-page-body{margin-top:24px}

  @media (max-width:767px){
    .pg-hero{padding-top:48px}
    .pg-grid{display:flex;flex-direction:column;align-items:stretch;gap:var(--pg-row-gap)}
    .pg-col{display:contents}
    .pg-card{order:var(--pg-order,0)}
    .pg-detail-head{flex-direction:column}
  }
  @media (prefers-reduced-motion:reduce){
    .pg-modal[open],.pg-modal[open]::backdrop{animation:none}
    .pg-thumb-media{transition:none}
  }

  /* ---------- PROBLEM → GOAL (opsin.html) ---------- */
  .shift{display:grid;grid-template-columns:minmax(0,1fr) 64px minmax(0,1fr);gap:16px;align-items:stretch}
  .shift-card{
    display:flex;flex-direction:column;gap:12px;
    padding:clamp(24px,3vw,32px);border-radius:var(--radius-figure);
  }
  .shift-card p{font-size:var(--fs-cs-lede);line-height:1.5;letter-spacing:-.01em;color:var(--ink)}
  .shift-card--problem{background:var(--bg);border:1px solid var(--line)}
  .shift-card--goal{background:linear-gradient(145deg,var(--case-g1),var(--case-g2),var(--case-g3))}
  .shift-card--goal .cs-label{color:var(--ink)}
  .shift-icon{
    display:flex;align-items:center;justify-content:center;width:40px;height:40px;margin-bottom:4px;
    border-radius:var(--radius-sm);
  }
  .shift-icon svg{width:20px;height:20px}
  .shift-card--problem .shift-icon{background:var(--flow-no-tint);color:var(--verdict-bad)}
  .shift-card--goal .shift-icon{background:var(--bg);color:var(--ink)}
  .shift-arrow{align-self:center;width:64px;height:24px;stroke:var(--ink);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

  /* ---------- USE-CASE FLOW (opsin.html) ----------
     Nodes sit in a CSS grid; case.js draws the connectors into .flow-lines from their positions.
     Below ~760px of width the flow stacks top to bottom (container query). */
  :root{
    --flow-decision:#2f6fe8;
    --flow-yes:#157a3c;   /* was #1f9d55; darkened to pass WCAG AA on white and on its tint */
    --flow-no:var(--verdict-bad);
    --flow-yes-tint:#e3f5ea;
    --flow-no-tint:#fdeaea;
    --flow-diamond:108px;
    --fs-flow-title:14px;
    --fs-flow-sub:13px;
    --fs-flow-small:12px;
  }
  .flow{
    position:relative;container-type:inline-size;
    padding:clamp(20px,3vw,32px);border-radius:var(--radius-figure);
    background:var(--chip);
  }
  .flow-legend{
    display:flex;flex-wrap:wrap;justify-content:flex-end;gap:6px 18px;list-style:none;
    font-size:var(--fs-flow-small);line-height:1.3;color:var(--body);
  }
  .flow-legend li{display:flex;align-items:center;gap:6px}
  .flow-key{width:10px;height:10px;border-radius:3px;border:1.5px solid}
  .flow-key--decision{border-color:var(--flow-decision);transform:rotate(45deg);border-radius:2px;background:var(--bg)}
  .flow-key--yes{border-color:#b7e4c7;background:var(--flow-yes-tint)}
  .flow-key--no{border-color:#f5c2c2;background:var(--flow-no-tint)}

  .flow-grid{
    --flow-dir:row;
    position:relative;z-index:1;
    display:grid;
    grid-template-columns:minmax(0,1fr) 32px var(--flow-diamond) 76px minmax(0,1.2fr) 32px var(--flow-diamond) 76px minmax(0,1fr);
    grid-template-areas:
      "login . check1 . home . check2 . granted"
      ". denied denied denied . . . . .";
    align-items:center;row-gap:84px;
    padding-top:72px;
  }
  .flow-node[data-node="login"]{grid-area:login}
  .flow-node[data-node="check1"]{grid-area:check1}
  .flow-node[data-node="home"]{grid-area:home}
  .flow-node[data-node="check2"]{grid-area:check2}
  .flow-node[data-node="granted"]{grid-area:granted}
  .flow-node[data-node="denied"]{grid-area:denied}

  .flow-card{
    position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:10px;min-width:0;
    padding:20px 14px 14px;border-radius:14px;
    background:var(--bg);border:1px solid var(--line);
    box-shadow:0 1px 2px rgba(23,24,26,.06);
  }
  .flow-card--yes{border-color:#cdebd8;box-shadow:5px 5px 0 -1px var(--bg),5px 5px 0 0 #cdebd8,10px 10px 0 -1px var(--bg),10px 10px 0 0 #e1f3e8}
  .flow-card--no{border-color:#f6d0d0}
  .flow-badge{
    position:absolute;top:-10px;left:12px;
    padding:3px 7px;border-radius:6px;
    font-size:10px;line-height:1.2;font-weight:var(--fw-bold);letter-spacing:.1em;text-transform:uppercase;
    background:var(--ink);color:var(--bg);
  }
  .flow-card--yes .flow-badge{background:var(--flow-yes)}
  .flow-card--no .flow-badge{background:var(--flow-no)}
  .flow-icon{
    flex:0 0 auto;display:flex;align-items:center;justify-content:center;
    width:32px;height:32px;border-radius:var(--radius-sm);
    background:var(--blue-tag);color:var(--flow-decision);
  }
  .flow-icon svg{width:17px;height:17px}
  .flow-card--yes .flow-icon{background:var(--flow-yes-tint);color:var(--flow-yes)}
  .flow-card--no .flow-icon{background:var(--flow-no-tint);color:var(--flow-no)}
  .flow-text{display:flex;flex-direction:column;gap:2px;min-width:0}
  .flow-text strong{font-size:var(--fs-flow-title);line-height:1.3;font-weight:var(--fw-semibold);color:var(--ink)}
  .flow-text span{font-size:var(--fs-flow-sub);line-height:1.4;color:var(--body)}

  .flow-decision{position:relative;display:flex;flex-direction:column;align-items:center}
  .flow-question{
    position:absolute;bottom:calc(100% + 12px);left:50%;transform:translateX(-50%);
    width:max-content;max-width:200px;text-align:center;
    font-size:var(--fs-flow-small);line-height:1.4;color:var(--body);
  }
  .flow-diamond{
    position:relative;display:flex;align-items:center;justify-content:center;
    width:var(--flow-diamond);height:var(--flow-diamond);
    text-align:center;
  }
  .flow-diamond::before{
    content:"";position:absolute;inset:calc(var(--flow-diamond) * .1464);
    border:1.5px solid var(--flow-decision);border-radius:10px;background:var(--bg);
    transform:rotate(45deg);
    box-shadow:0 6px 16px -8px rgba(47,111,232,.35);
  }
  .flow-diamond span{position:relative;max-width:78px;font-size:var(--fs-flow-sub);line-height:1.3;font-weight:var(--fw-semibold);color:var(--ink)}

  /* hover tracing (case.js toggles the classes from mouse events) */
  .flow-node{transition:opacity .25s ease}
  .flow-card,.flow-diamond::before{transition:transform .3s var(--ease-out),box-shadow .3s var(--ease-out)}
  .flow-node.is-hovered .flow-card,.flow-card.is-hovered{transform:translateY(-3px);box-shadow:0 14px 28px -14px rgba(23,24,26,.28)}
  .flow-node.is-hovered .flow-diamond::before{transform:rotate(45deg) scale(1.06);box-shadow:0 10px 22px -8px rgba(47,111,232,.45)}
  .flow.is-tracing .flow-node:not(.is-lit){opacity:.4}
  .flow-lines path,.flow-chip{transition:opacity .25s ease}
  .flow.is-tracing .flow-lines path:not(.is-lit),.flow.is-tracing .flow-chip:not(.is-lit){opacity:.2}
  .flow.is-tracing .flow-lines path.is-lit{stroke-width:2.4}

  .flow-lines{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}
  .flow-lines path{fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
  .flow-line--go{stroke:var(--flow-decision)}
  .flow-line--yes{stroke:var(--flow-yes)}
  .flow-line--no{stroke:var(--flow-no);stroke-dasharray:.5 6}
  .flow-head--no{stroke-dasharray:none}
  .flow-chip{
    position:absolute;z-index:2;transform:translate(-50%,-50%);
    padding:2px 10px;border-radius:var(--radius-pill);
    font-size:var(--fs-flow-small);line-height:1.5;font-weight:var(--fw-semibold);
  }
  .flow-chip--yes{background:var(--flow-yes-tint);color:var(--flow-yes);border:1px solid #b7e4c7}
  .flow-chip--no{background:var(--flow-no-tint);color:var(--flow-no);border:1px solid #f5c2c2}

  @container (max-width:759px){
    .flow-grid{
      --flow-dir:column;
      grid-template-columns:minmax(0,1fr) 56px;
      grid-template-areas:"login ." "check1 ." "home ." "check2 ." "granted ." "denied .";
      justify-items:center;row-gap:68px;padding-top:28px;
    }
    .flow-card{flex-direction:row;width:min(100%,300px);padding:18px 14px 14px}
    .flow-question{position:static;transform:none;margin-bottom:6px;max-width:240px}
  }

  /* ---------- LIVE CALLOUT (opsin.html business impact) ----------
     case.js counts the number up and fades the copy in on first scroll;
     on hover the gradient drifts and the number grows a touch. */
  .cs-callout--live{background-size:200% 200%;background-position:0% 50%;transition:background-position .9s var(--ease-out)}
  .cs-callout--live .cs-callout-num{display:inline-block;transform-origin:left center;transition:transform .45s var(--ease-out);font-variant-numeric:tabular-nums}
  .cs-callout--live:hover{background-position:100% 50%}
  .cs-callout--live:hover .cs-callout-num{transform:scale(1.06)}

  /* ---------- BEFORE / AFTER EMPHASIS (acme.html transfer agent) ----------
     Red marks the before, green the after: the selected tab, the frame outline and the notes. */
  /* additional screens (static before/after): badge and frame outline follow the state */
  .ba-hold[data-showing="before"] .ba-badge{background:var(--verdict-bad)}
  .ba-hold[data-showing="after"] .ba-badge{background:var(--verdict-good)}
  .ba-hold:not(.ba-annotated) .ba-frame::after{
    content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
    border:2px solid transparent;border-radius:inherit;transition:border-color .25s ease;
  }
  .ba-hold:not(.ba-annotated)[data-showing="before"] .ba-frame::after{border-color:var(--verdict-bad)}
  .ba-hold:not(.ba-annotated)[data-showing="after"] .ba-frame::after{border-color:var(--verdict-good)}
  .ba-frame:focus-visible{outline:2px solid var(--ink);outline-offset:4px}
  .tabs--ba .tabs-tab--before[aria-selected="true"]{color:var(--verdict-bad)}
  .tabs--ba .tabs-tab--after[aria-selected="true"]{color:var(--verdict-good)}
  .tabs--ba .tabs-tab:not([aria-selected="true"]):hover{color:var(--ink)}
  .tabs--ba:has(.tabs-tab--before[aria-selected="true"]) .tabs-indicator{background:var(--flow-no-tint)}
  .tabs--ba:has(.tabs-tab--after[aria-selected="true"]) .tabs-indicator{background:var(--flow-yes-tint)}
  .cs-media--framed{
    aspect-ratio:7/5;display:flex;align-items:center;justify-content:center;
    --frame-pad:clamp(14px,3vw,32px);padding:var(--frame-pad);container-type:inline-size;
    background:linear-gradient(145deg,var(--case-g1),var(--case-g2),var(--case-g3));
    outline:2px solid transparent;outline-offset:-2px;
  }
  .cs-ph.cs-media--framed video{width:auto;height:auto;max-width:100%;max-height:100%;max-height:calc((100cqw + 2 * var(--frame-pad)) * 5 / 7 - 2 * var(--frame-pad));  /* % heights don't resolve here on some phones (Safari), so cap by the frame's own width */
    object-fit:contain;border-radius:var(--radius-media);box-shadow:var(--lift-shadow-hover)}
  .cs-media--before{outline-color:var(--verdict-bad)}
  .cs-media--after{outline-color:var(--verdict-good)}
  .ba-label--bad{color:var(--verdict-bad)}
  .ba-label--good{color:var(--verdict-good)}
  .cs-list--bad li::before{background:var(--verdict-bad)}
  .cs-list--good li::before{border-color:var(--verdict-good)}

  /* ---------- SOC: findings, stat cards, worked / didn't-work cards ---------- */
  .cs-cards--findings{grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr))}
  .cs-card--finding .cs-label{margin-top:2px}
  .cs-stats--cards{list-style:none;gap:16px;padding:0;border:0}
  .cs-stats--cards .cs-stat{gap:8px;padding:24px;border-radius:var(--radius-figure);background:var(--chip)}
  .cs-stats--cards .cs-card-icon{margin-bottom:6px}
  .cs-stats--cards strong{font-variant-numeric:tabular-nums}
  .cs-verdicts{gap:16px}
  .cs-verdict-card{display:flex;flex-direction:column;gap:14px;padding:clamp(20px,2.6vw,28px);border-radius:var(--radius-figure);border:1px solid}
  .cs-verdict-card--yes{background:var(--flow-yes-tint);border-color:#cdebd8}
  .cs-verdict-card--no{background:var(--flow-no-tint);border-color:#f6d0d0}
  .cs-verdict-card .cs-list li{color:var(--ink)}
  .cs-list--x li::before{
    content:"";top:.62em;left:0;width:10px;height:2px;border-radius:1px;background:var(--verdict-bad);transform:rotate(45deg);
  }
  .cs-list--x li::after{
    content:"";position:absolute;top:.62em;left:0;width:10px;height:2px;border-radius:1px;background:var(--verdict-bad);transform:rotate(-45deg);
  }

  @media (max-width:767px){
    .cs-stats.cs-stats--cards{grid-template-columns:minmax(0,1fr)}
  }

  /* tool tile without a logo file (playground): the tool's initial */
  .tool-initial{font-size:13px;line-height:1;font-weight:var(--fw-bold);color:var(--ink)}
  .pg-modal-body .tool-list,.pg-page-body .tool-list{margin-bottom:2px}

  /* ---------- AVATAR STACK (team "worked with") ----------
     Overlapping circles; hovering (or focusing) one lifts it above the others and shows its role. */
  :root{--avatar:36px;--avatar-overlap:-10px}
  .avatar-stack{display:flex;align-items:center;margin-top:10px;padding-left:10px;list-style:none}
  .avatar{position:relative;margin-left:var(--avatar-overlap)}
  .avatar:first-child{margin-left:0}
  .avatar-circle{
    display:flex;align-items:center;justify-content:center;width:var(--avatar);height:var(--avatar);border-radius:50%;
    background:linear-gradient(145deg,var(--case-g1),var(--case-g3));color:var(--ink);
    border:2px solid var(--bg);box-shadow:0 1px 3px rgba(23,24,26,.12);
    transition:transform .3s var(--ease-out),background-color .2s ease,color .2s ease;
  }
  .avatar-circle svg{width:16px;height:16px}
  .avatar:hover .avatar-circle,.avatar:focus-visible .avatar-circle{transform:translateY(-4px) scale(1.08);background:var(--ink);color:var(--bg)}
  .avatar:hover,.avatar:focus-visible{z-index:2}
  .avatar:focus-visible{outline:none}
  .avatar:focus-visible .avatar-circle{box-shadow:0 0 0 2px var(--ink)}
  .avatar-tip{
    position:absolute;bottom:calc(100% + 8px);left:50%;transform:translate(-50%,4px);
    padding:5px 9px;border-radius:var(--radius-sm);white-space:nowrap;pointer-events:none;
    background:var(--tooltip-bg);color:var(--tooltip-ink);font-size:var(--fs-tooltip);line-height:1.3;
    opacity:0;transition:opacity .18s ease,transform .18s ease;
  }
  .avatar:hover .avatar-tip,.avatar:focus-visible .avatar-tip{opacity:1;transform:translate(-50%,0)}
  /* tooltips open to the right of the avatar so they never run off the left edge (phones) */
  .avatar .avatar-tip{left:-6px;transform:translateY(4px)}
  .avatar:hover .avatar-tip,.avatar:focus-visible .avatar-tip{transform:none}

  /* ---------- SLIDESHOW OVERLAYS ([data-overlay-at] on the carousel) ---------- */
  .carousel--fade .carousel-slide{position:relative}
  .carousel-overlay{
    position:absolute;inset:0;z-index:1;
    display:flex;align-items:stretch;justify-content:flex-end;overflow:hidden;
    border-radius:var(--radius-media);background:rgba(23,24,26,.15);
    opacity:0;visibility:hidden;
  }
  .carousel--fade .carousel-overlay img{width:auto;height:100%;max-width:100%;object-fit:contain;object-position:right top;border-radius:0;box-shadow:none}

  @media (max-width:767px){
    .shift{grid-template-columns:minmax(0,1fr);gap:8px}
    .shift-arrow{justify-self:center;transform:rotate(90deg);width:48px;margin:16px 0}  /* rotated box is taller than its layout box; margin keeps it off the cards */
  }

  /* ---------- MOTION / A11Y ---------- */
  .fade{opacity:0;transform:translateY(14px);animation:rise .7s cubic-bezier(.2,.7,.2,1) forwards}
  .fade.d1{animation-delay:.06s}.fade.d2{animation-delay:.14s}.fade.d3{animation-delay:.22s}
  @keyframes rise{to{opacity:1;transform:none}}
  a:focus-visible,.btn:focus-visible{outline:2px solid #7ea6e6;outline-offset:3px;border-radius:8px}
  @media (prefers-reduced-motion:reduce){
    .fade{animation:none;opacity:1;transform:none}
    .about-portrait,.btn,.btn-arrow{transition:none}
    .star{animation:none;opacity:.45}
    .foot-col > a,.foot-icons a,.foot-icons a svg{transition:color .2s ease,background .2s ease}
    .foot-col > a:hover,.foot-icons a:hover,.foot-icons a:hover svg{transform:none}
    .case.is-hovered :is(.case-video,.case-image),.case:focus-visible :is(.case-video,.case-image){transform:none}
    .case-arrow,.case.is-hovered .case-arrow{transform:none}
    .carousel-dot-bar,.ba-mark,.tip-bubble{transition:none}
    .btn:hover{transform:none}
    .nav-glide{transition:opacity .18s ease}
    .hl{animation:none;background-size:100% 100%}
    .tool-name,.tool.is-tipped .tool-tile{transform:none}
    .grad-text{animation:none}
    .photo-strip{overflow-x:auto}
    .photo-track{animation:none}
    .photo-set[aria-hidden="true"]{display:none}
    html{scroll-behavior:auto}
  }

  /* ---------- RESPONSIVE ---------- */
  @media (max-width:1023px){
    .case-grid{
      --case-gap-col:24px;
      --case-gap-row:48px;
    }
  }
  @media (max-width:900px){
    .hero{padding-top:48px;padding-bottom:40px}
  }
  @media (max-width:767px){
    .nav-toggle{display:inline-flex}
    header nav{
      display:none;position:absolute;top:calc(100% + 10px);left:var(--page-pad);right:var(--page-pad);
      flex-direction:column;align-items:stretch;gap:2px;padding:8px;
      border-radius:var(--radius-md);box-shadow:var(--menu-shadow);
      background:var(--bg);
    }
    header.menu-open nav{display:flex}
    header.is-scrolled nav{background:var(--bg);backdrop-filter:none;-webkit-backdrop-filter:none}
    .nav-glide{display:none}
    header nav a.is-hovered{background:var(--pill)}
    header nav a{font-size:var(--fs-menu);padding:12px 16px;min-height:48px;display:flex;align-items:center;border-radius:var(--radius-sm);color:var(--ink)}
    .case-grid{
      grid-template-columns:1fr;
      --case-gap-row:40px;
    }
    .case-caption{flex-direction:column;gap:8px;align-items:stretch}
    .case-meta{white-space:normal}
    .foot-grid{grid-template-columns:1fr;gap:36px}
    #playground{padding-top:80px}
  }

  /* ---------- CMI (cmi.html) ---------- */
  .status-chip{display:inline-flex;align-items:center;gap:8px;padding:4px 12px 4px 10px;border-radius:var(--radius-pill);background:var(--g-cmi-2);color:var(--g-cmi-ink);font-size:var(--fs-cs-tag);font-weight:var(--fw-semibold)}
  .status-chip i{width:7px;height:7px;border-radius:50%;background:#3f8f6b;animation:chip-pulse 2.4s ease-in-out infinite}
  @keyframes chip-pulse{0%,100%{box-shadow:0 0 0 0 rgba(63,143,107,.45)}50%{box-shadow:0 0 0 5px rgba(63,143,107,0)}}
  .cs-source{font-size:var(--fs-small);line-height:1.5;color:var(--muted)}

  /* themes: what's broken vs. what we designed for */
  .theme-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;padding-top:12px;list-style:none}
  .theme-card{display:flex;flex-direction:column;gap:10px;padding:24px;border-radius:var(--radius-figure);background:var(--chip)}
  .theme-row{display:flex;flex-direction:column;gap:4px;font-size:var(--fs-nav);line-height:1.55}
  .theme-row + .theme-row{padding-top:10px;border-top:1px solid var(--line)}
  .theme-k{font-size:var(--fs-cs-label);font-weight:var(--fw-semibold);letter-spacing:.06em;text-transform:uppercase}
  .theme-k--bad{color:var(--verdict-bad,#c0392b)}
  .theme-k--good{color:var(--g-cmi-ink)}

  /* ATLAS.ti code frequency: bars grow in on scroll (case.js) */
  .code-chart{display:flex;flex-direction:column;gap:14px;padding:24px;border:1px solid var(--line);border-radius:var(--radius-figure)}
  .bars{display:flex;flex-direction:column;gap:8px;list-style:none}
  .bars li{display:grid;grid-template-columns:minmax(120px,210px) minmax(0,1fr) 32px;align-items:center;gap:14px;font-size:var(--fs-small);color:var(--muted)}
  .bar-track{height:10px;border-radius:var(--radius-pill);background:var(--chip);overflow:hidden}
  .bar-fill{display:block;height:100%;width:calc(var(--v) * 100%);border-radius:inherit;background:var(--g-cmi-3);transform-origin:left center}
  .bars li.is-top{color:var(--ink);font-weight:var(--fw-semibold)}
  .bars li.is-top .bar-fill{background:var(--g-cmi-ink)}
  .bar-num{text-align:right;font-variant-numeric:tabular-nums}
  .finding-quote{margin-top:auto;padding:12px 0 0 14px;border-left:2px solid var(--g-cmi-3);font-size:var(--fs-small);line-height:1.55;font-style:italic;color:var(--muted)}
  .finding-quote cite{display:block;margin-top:4px;font-style:normal;font-weight:var(--fw-semibold);color:var(--ink)}

  /* positioning map */
  .posmap{padding:8px;border-radius:var(--radius-figure);background:var(--chip)}
  .posmap svg{display:block;width:100%;height:auto;font-family:inherit}
  .pm-bg{fill:var(--bg)}
  .pm-axis{stroke:var(--line);stroke-width:1.5}
  .pm-cap{fill:var(--muted);font-size:13px}
  .pm-cmi{fill:var(--g-cmi-2);stroke:var(--g-cmi-ink);stroke-width:1.5;stroke-dasharray:5 5}
  .pm-cmi-t{fill:var(--g-cmi-ink);font-size:17px;font-weight:600}
  .pm-cmi-s{fill:var(--g-cmi-ink);font-size:13px;opacity:.8}
  .pm-dot circle,.pm-ring{fill:var(--bg);filter:drop-shadow(0 2px 4px rgba(23,24,26,.18))}
  .pm-dot text{fill:var(--ink);font-size:14px}
  .comp-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 32px;list-style:none}
  .comp-list li{display:flex;align-items:flex-start;gap:12px;padding-top:12px;border-top:1px solid var(--line);font-size:var(--fs-nav);line-height:1.55}
  .comp-list li img{flex:0 0 32px;width:32px;height:32px;border-radius:50%;margin-top:2px}
  .comp-list li div{display:flex;flex-direction:column;gap:2px}
  .comp-list span{color:var(--muted)}

  /* persona */
  .persona-card{display:grid;grid-template-columns:260px minmax(0,1fr);gap:28px;padding:20px;border-radius:var(--radius-figure);background:linear-gradient(145deg,var(--case-g1),var(--case-g2))}
  .persona-side{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:28px 22px;border-radius:var(--radius-md);background:var(--bg);text-align:center}
  .persona-photo{width:120px;height:120px;margin-bottom:12px;border-radius:50%;object-fit:cover;box-shadow:0 0 0 4px var(--g-cmi-2)}
  .persona-name{font-size:var(--fs-cs-h3);font-weight:var(--fw-semibold);color:var(--ink)}
  .persona-role{font-size:var(--fs-small);color:var(--muted)}
  .persona-facts{display:grid;grid-template-columns:auto 1fr;gap:8px 12px;width:100%;margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:var(--fs-small);text-align:left}
  .persona-facts dt{color:var(--muted)}
  .persona-facts dd{color:var(--ink)}
  .persona-main{display:flex;flex-direction:column;justify-content:center;gap:20px;min-width:0;padding:8px 8px 8px 0}
  .persona-quote{font-size:var(--fs-cs-quote);line-height:1.35;font-weight:var(--fw-semibold);letter-spacing:-.01em;color:var(--ink)}
  .persona-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .persona-box{display:flex;flex-direction:column;gap:10px;padding:18px 20px;border-radius:var(--radius-md);background:var(--bg)}
  .persona-k{display:flex;align-items:center;gap:8px;font-size:var(--fs-cs-label);font-weight:var(--fw-semibold);letter-spacing:.06em;text-transform:uppercase;color:var(--ink)}
  .persona-k i{width:8px;height:8px;border-radius:50%}
  .persona-box ul{display:flex;flex-direction:column;gap:6px;padding-left:18px;font-size:var(--fs-nav);line-height:1.5}

  /* use cases */
  .uc-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;list-style:none}
  .uc-card{display:flex;flex-direction:column;gap:4px;padding:20px;border:1px solid var(--line);border-radius:var(--radius-figure);background:var(--bg)}
  .uc-name{font-weight:var(--fw-semibold);color:var(--ink)}
  .uc-who{font-size:var(--fs-small);color:var(--muted);margin-bottom:10px}
  .uc-flow{display:flex;flex-wrap:wrap;align-items:center;gap:6px 18px;list-style:none;margin-top:auto}
  .uc-flow li{position:relative;padding:3px 9px;border-radius:var(--radius-pill);background:var(--chip);font-size:12px;color:var(--ink)}
  .uc-flow li + li::before{content:"→";position:absolute;left:-14px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:11px}

  /* task flow line with the two decision points */
  .flowline{display:flex;flex-direction:column;gap:16px;padding:24px;border-radius:var(--radius-figure);background:linear-gradient(145deg,var(--case-g1),var(--case-g2))}
  .flowline-steps{display:flex;flex-wrap:wrap;align-items:center;gap:10px 26px;list-style:none}
  .flowline-steps li{position:relative;display:flex;align-items:center;padding:7px 14px;border-radius:var(--radius-pill);background:var(--bg);font-size:var(--fs-small);color:var(--ink);white-space:nowrap}
  .flowline-steps li + li::before{content:"";position:absolute;left:-21px;top:50%;width:16px;height:1px;background:var(--muted)}
  .flowline-steps li.is-q{gap:6px;background:var(--g-cmi-ink);color:#fff;font-weight:var(--fw-semibold)}
  .flowline-steps li.is-q span,.flowline-answer .cs-label span{display:inline-grid;place-items:center;width:18px;height:18px;border-radius:50%;background:#fff;color:var(--g-cmi-ink);font-size:11px}
  .flowline-answers{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .flowline-answer{display:flex;flex-direction:column;gap:8px;padding:18px 20px;border-radius:var(--radius-md);background:var(--chip)}
  .flowline-answer .cs-label{display:flex;align-items:center;gap:8px;color:var(--g-cmi-ink)}
  .flowline-answer .cs-label span{background:var(--g-cmi-ink);color:#fff}
  .flowline-answer p:last-child{font-size:var(--fs-nav);line-height:1.55}

  /* information architecture */
  .ia-tree{display:flex;flex-direction:column;align-items:center;gap:0;padding:24px;border:1px solid var(--line);border-radius:var(--radius-figure)}
  .ia-root{padding:9px 20px;border-radius:var(--radius-pill);background:var(--g-cmi-ink);color:#fff;font-weight:var(--fw-semibold);font-size:var(--fs-nav)}
  .ia-branches{position:relative;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;width:100%;margin-top:28px}
  .ia-branches::before{content:"";position:absolute;top:-14px;left:16.67%;right:16.67%;height:1px;background:var(--g-cmi-3)}
  .ia-branches::after{content:"";position:absolute;top:-28px;left:50%;width:1px;height:14px;background:var(--g-cmi-3)}
  .ia-branch{position:relative;display:flex;flex-direction:column;gap:8px;padding:14px;border-radius:var(--radius-md);background:var(--chip)}
  .ia-branch::before{content:"";position:absolute;top:-14px;left:50%;width:1px;height:14px;background:var(--g-cmi-3)}
  .ia-l2{font-weight:var(--fw-semibold);color:var(--ink);text-align:center}
  .ia-branch ul{display:flex;flex-direction:column;gap:5px;list-style:none}
  .ia-branch li{padding:6px 10px;border-radius:var(--radius-sm);background:var(--bg);font-size:13px;color:var(--ink)}
  .ia-branch li.ia-l4{background:none;border:1px dashed var(--g-cmi-3);color:var(--muted)}

  /* hi-fi: phone video + numbered steps, alternating sides */
  .flow-demo{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);align-items:center;gap:clamp(24px,4vw,56px);padding-top:16px}
  .flow-demo--flip{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
  .flow-demo--flip .flow-demo-phone{order:2}
  /* the play/pause button sits beside the phone so it never covers the tab bar */
  .cs-ph.flow-phone{overflow:visible}
  .cs-ph.flow-phone video{border-radius:inherit}
  .flow-phone .cs-media-toggle{right:auto;left:calc(100% + 14px);bottom:0}
  .flow-demo--flip .flow-phone .cs-media-toggle{left:auto;right:calc(100% + 14px)}
  .flow-demo-phone{display:flex;justify-content:center;padding:clamp(24px,3.5vw,44px) 0;border-radius:var(--radius-figure);background:linear-gradient(145deg,var(--case-g1),var(--case-g2),var(--case-g3))}
  .cs-ph.flow-phone{width:min(62%,250px);aspect-ratio:390 / 844;border-radius:9.4% / 4.4%;background:var(--bg);box-shadow:0 0 0 2px rgba(23,24,26,.7),0 18px 36px -18px rgba(23,24,26,.45)}
  .flow-demo-body{display:flex;flex-direction:column;gap:8px}
  .demo-steps{display:flex;flex-direction:column;gap:16px;padding-top:10px;list-style:none}
  .demo-steps li{display:flex;gap:16px}
  .demo-step{flex:0 0 32px;font-size:var(--fs-nav);line-height:1.6;font-weight:var(--fw-semibold);color:var(--g-cmi-ink)}
  .demo-steps h4{font-size:var(--fs-cs-list);font-weight:var(--fw-semibold);color:var(--ink)}
  .demo-steps p{font-size:var(--fs-nav);line-height:1.55}

  @media (max-width:1023px){
    .uc-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  }
  @media (max-width:767px){
    .theme-grid,.comp-list,.uc-grid,.persona-grid,.flowline-answers{grid-template-columns:minmax(0,1fr)}
    .persona-card{grid-template-columns:minmax(0,1fr);gap:20px;padding:22px}
    .bars li{grid-template-columns:minmax(0,1fr) 28px;gap:4px 10px}
    .bar-label{grid-column:1 / -1}
    .bar-track{grid-column:1}
    .code-chart{padding:18px}
    .flow-demo{grid-template-columns:minmax(0,1fr)}
    .flow-demo--flip{grid-template-columns:minmax(0,1fr)}
    .flow-demo--flip .flow-demo-phone{order:0}
    .flow-demo--flip .flow-phone .cs-media-toggle{right:auto;left:calc(100% + 14px)}
    .cs-ph.flow-phone{width:min(64%,240px)}
    .ia-tree{padding:16px}
    .ia-branches{grid-template-columns:minmax(0,1fr);margin-top:14px}
    .ia-branches::before,.ia-branches::after,.ia-branch::before{display:none}
    .flowline-steps{gap:8px}
    .flowline-steps li + li::before{display:none}
  }
  @media (max-width:479px){
    .ia-branches{grid-template-columns:minmax(0,1fr)}
    .ia-branch ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
    .ia-branch li.ia-l4{grid-column:1 / -1}
    .flowline{padding:18px}
  }
  @media (prefers-reduced-motion:reduce){.status-chip i{animation:none}}

  /* positioning quadrant (cmi.html competitive analysis) */
  .quad{display:flex;flex-direction:column;gap:10px;padding:clamp(16px,3vw,28px);border-radius:var(--radius-figure);background:var(--chip)}
  .quad-wrap{display:flex;gap:10px}
  .quad-main{flex:1;display:flex;flex-direction:column;min-width:0}
  .quad-bar{display:grid;grid-template-columns:1fr 1fr}
  .quad-k{padding:9px 12px;text-align:center;font-size:13px;font-weight:var(--fw-semibold);color:var(--ink)}
  .quad-k--1{background:#f5dfa6;border-radius:12px 0 0 0}
  .quad-k--2{background:#a8dccf;border-radius:0 12px 0 0}
  .quad-k--3{background:#f6c3cf;border-radius:0 0 0 12px}
  .quad-k--4{background:#c9b8f0;border-radius:0 0 12px 0}
  .quad-plot{position:relative;aspect-ratio:16 / 10;list-style:none;background:var(--bg);
    background-image:radial-gradient(circle,#d5dad7 1px,transparent 1.2px);background-size:24px 24px;background-position:12px 12px}
  .quad-plot::before,.quad-plot::after{content:"";position:absolute;background:var(--ink);opacity:.75}
  .quad-plot::before{left:50%;top:0;bottom:0;width:1.5px;margin-left:-.75px}
  .quad-plot::after{top:50%;left:0;right:0;height:1.5px;margin-top:-.75px}
  .quad-dot{position:absolute;left:var(--x);top:var(--y);z-index:1;display:flex;flex-direction:column;align-items:center;gap:6px;width:120px;margin-left:-60px;transform:translateY(-26px);text-align:center}
  .quad-dot img{width:52px;height:52px;border-radius:50%;background:var(--bg);box-shadow:0 0 0 3px var(--bg),0 6px 14px -6px rgba(23,24,26,.35);transition:transform .3s var(--ease-out)}
  .quad-dot:hover img{transform:scale(1.08)}
  .quad-dot span{font-size:13px;line-height:1.25;font-weight:var(--fw-semibold);color:var(--ink)}
  .quad-dot--cmi{transform:translateY(-36px)}
  .quad-dot--cmi img{width:72px;height:72px;padding:8px;background:var(--bg);box-shadow:0 0 0 3px var(--g-cmi-ink),0 0 0 10px rgba(63,107,85,.16),0 10px 22px -8px rgba(63,107,85,.5)}
  .quad-dot--cmi span{color:var(--g-cmi-ink)}
  .quad-dot--cmi em{font-style:normal;font-size:11px;font-weight:var(--fw-semibold);letter-spacing:.04em;text-transform:uppercase;white-space:nowrap;color:#fff;background:var(--g-cmi-ink);padding:3px 8px;border-radius:var(--radius-pill)}
  .quad-axis{display:flex;justify-content:space-between;font-size:12px;font-weight:var(--fw-semibold);letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}
  .quad-axis span{display:flex;align-items:center;gap:6px}
  .quad-axis--x{padding-left:34px}
  .quad-axis--x span:first-child::before{content:"←"}
  .quad-axis--x span:last-child::after{content:"→"}
  .quad-axis--y{flex:0 0 18px;flex-direction:column-reverse;justify-content:space-between;align-items:center;padding:56px 0}
  .quad-axis--y span{writing-mode:vertical-rl;transform:rotate(180deg)}
  .quad-axis--y span:first-child::before{content:"←"}
  .quad-axis--y span:last-child::after{content:"→"}

  /* flow colours follow the CMI theme */
  .flow--cmi{--flow-decision:var(--g-cmi-ink)}
  .flow--cmi .flow-diamond::before{border-color:var(--g-cmi-ink)}
  .flow--cmi .flow-icon{background:var(--g-cmi-2);color:var(--g-cmi-ink)}

  /* outcome milestones + learnings */
  .milestones{position:relative;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;list-style:none;padding-top:8px}
  .milestones::before{content:"";position:absolute;top:22px;left:17px;right:calc(25% - 17px);height:2px;background:linear-gradient(90deg,var(--g-cmi-ink) 0 34%,var(--g-cmi-3) 34% 100%)}
  .milestones li{position:relative;display:flex;flex-direction:column;gap:6px}
  .ms-dot{display:grid;place-items:center;width:30px;height:30px;margin-bottom:10px;border-radius:50%;background:var(--bg);border:2px solid var(--g-cmi-3)}
  .ms-dot svg{width:16px;height:16px}
  .is-done .ms-dot{background:var(--g-cmi-ink);border-color:var(--g-cmi-ink);color:#fff}
  .is-next .ms-dot::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--g-cmi-3)}
  .is-now .ms-dot{border-color:var(--g-cmi-ink);animation:chip-pulse 2.4s ease-in-out infinite}
  .is-now .ms-dot::after{content:"";width:10px;height:10px;border-radius:50%;background:var(--g-cmi-ink)}
  .ms-k{font-size:var(--fs-cs-label);font-weight:var(--fw-semibold);letter-spacing:.08em;text-transform:uppercase;color:var(--g-cmi-ink)}
  .is-next .ms-k{color:var(--muted)}
  .milestones p:last-child{font-size:var(--fs-nav);line-height:1.55}
  .learn-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;list-style:none}
  .learn-card{display:flex;flex-direction:column;gap:10px;padding:26px;border-radius:var(--radius-figure);background:linear-gradient(145deg,var(--g-cmi-1),var(--g-cmi-2))}
  .learn-card p{font-size:var(--fs-nav);line-height:1.6}
  @media (max-width:767px){
    .quad-plot{aspect-ratio:4 / 5}
    .quad-dot{left:var(--xm,var(--x));width:92px;margin-left:-46px}
    .quad-dot--cmi em{font-size:9px;padding:3px 6px}
    .quad-wrap{gap:6px}
    .quad-dot img{width:40px;height:40px}
    .quad-dot--cmi img{width:56px;height:56px;padding:6px}
    .quad-dot span{font-size:11px}
    .quad-k{font-size:11px;padding:8px 6px}
    .quad-axis{font-size:10px}
    .quad-axis--x{padding-left:30px}
    .persona-side{padding:24px 18px}
    .persona-main{padding:0}
    .milestones{grid-template-columns:minmax(0,1fr);gap:22px;padding-left:44px}
    .milestones::before{top:8px;bottom:8px;left:14px;right:auto;width:2px;height:auto;background:linear-gradient(180deg,var(--g-cmi-ink) 0 30%,var(--g-cmi-3) 30% 100%)}
    .ms-dot{position:absolute;left:-44px;top:0;margin:0}
    .learn-grid{grid-template-columns:minmax(0,1fr)}
  }
  @media (prefers-reduced-motion:reduce){.is-now .ms-dot{animation:none}}

  /* ATLAS.ti wordmark inline in body copy and above the code chart */
  .has-pop{position:relative}
  .inline-wordmark{display:inline-block;height:1.15em;width:auto;vertical-align:-0.2em;margin:0 .1em}
  .logo-pop--atlas .logo-pop-trigger{padding:2px 4px;margin:-2px 0}
  .code-chart-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
  .code-chart-src{display:inline-flex;align-items:center;gap:8px;padding:5px 10px;border:1px solid var(--line);border-radius:var(--radius-pill);font-size:12px;color:var(--muted);transition:border-color .2s ease,transform .2s var(--ease-out)}
  .code-chart-src img{height:16px;width:auto}
  .code-chart-src:hover{border-color:var(--ink);transform:translateY(-1px);color:var(--ink)}
  .learn-label{margin-top:20px}
  .flow--cmi .flow-diamond::before{box-shadow:0 6px 16px -8px rgba(63,107,85,.4)}

  /* IA: hover a section to lift it and dim the rest; items light up too */
  .ia-root{transition:transform .3s var(--ease-out)}
  .ia-branch{transition:transform .3s var(--ease-out),box-shadow .3s var(--ease-out),background-color .3s ease,opacity .3s ease}
  .ia-branch::before{transition:background-color .3s ease}
  .ia-branch li{transition:background-color .2s ease,color .2s ease,transform .2s var(--ease-out)}
  .ia-branch:focus{outline:none}
  .ia-branch:focus-visible{outline:2px solid var(--g-cmi-ink);outline-offset:2px}
  /* applied on hover for every pointer (no hover media query, so touch-screen laptops get it too) */
  .ia-branches:hover .ia-branch:not(:hover){opacity:.45}
  .ia-branch:hover{transform:translateY(-4px);background:var(--g-cmi-2);box-shadow:0 14px 28px -16px rgba(63,107,85,.5)}
  .ia-branch:hover::before{background:var(--g-cmi-ink)}
  .ia-tree:has(.ia-branch:hover) .ia-root{transform:scale(1.05)}
  .ia-branch li:hover{background:var(--g-cmi-ink);color:#fff;transform:translateX(3px)}
  .ia-branch li.ia-l4:hover{background:var(--bg);color:var(--g-cmi-ink)}

  .cs-label--logo{display:flex;align-items:center;gap:10px}
  .cs-label--logo img{width:22px;height:22px;flex:none}
  .home-tm[hidden]{display:none}
  .cs-label--logo img.is-tile{border-radius:6px;box-shadow:0 0 0 1px var(--line)}
  /* cover videos: never taller than the screen (short laptop screens like a Surface); stays 4:3 and centres */
  .cs-cover--video{width:min(100%,calc((100vh - 140px) * 4 / 3));margin-inline:auto}
  @supports (height:100svh){.cs-cover--video{width:min(100%,calc((100svh - 140px) * 4 / 3))}}
  .tm-more{display:inline-flex;gap:6px;margin-top:20px;font-size:var(--fs-small);font-weight:var(--fw-semibold);color:var(--body);transition:color .2s ease}
  .tm-more:hover{color:var(--ink)}
  .tm-more span{transition:transform .2s var(--ease-out)}
  .tm-more:hover span{transform:translate(2px,-2px)}
  .tm-extra{display:block;margin-top:2px;font-size:12px;color:var(--muted)}
  /* testimonial cards: hover lifts the card, tints it with its star colour and spins the star */
  .tm-card{--tm-c:#c9b8f0;transition:transform .35s var(--ease-out),box-shadow .35s var(--ease-out),border-color .35s ease,background-color .35s ease,opacity .35s ease}
  .tm-card:nth-child(2){--tm-c:#a8dccf}
  .tm-card:nth-child(3){--tm-c:#f6c3cf}
  .tm-card:nth-child(4){--tm-c:#b5d3f5}
  .tm-star{transition:transform .5s var(--ease-out)}
  .tm-avatar{transition:transform .35s var(--ease-out),box-shadow .35s ease}
  .tm-grid:hover .tm-card:not(:hover){opacity:.6}
  .tm-card:hover{transform:translateY(-6px);border-color:var(--tm-c);background:color-mix(in srgb,var(--tm-c) 12%,#fff);box-shadow:0 18px 36px -20px color-mix(in srgb,var(--tm-c) 90%,#000)}
  .tm-card:hover .tm-star{transform:rotate(90deg) scale(1.6)}
  .tm-card:hover .tm-avatar{transform:scale(1.08);box-shadow:0 0 0 3px var(--tm-c)}
  @media (prefers-reduced-motion:reduce){.tm-card,.tm-star,.tm-avatar{transition:none}}
  /* hero: availability pill beside the greeting */
  .greet-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px 14px;margin-bottom:16px}
  .greet-row .greet{margin:0}
  .open-pill{display:inline-flex;align-items:center;gap:8px;padding:5px 12px 5px 10px;border-radius:var(--radius-pill);background:#e8f5ee;color:#2f6e4f;font-size:var(--fs-small);font-weight:var(--fw-medium);line-height:1.3;white-space:nowrap}
  .open-pill i{width:8px;height:8px;border-radius:50%;background:#2fa36b;animation:open-pulse 2.2s ease-in-out infinite}
  @keyframes open-pulse{0%,100%{box-shadow:0 0 0 0 rgba(47,163,107,.5)}60%{box-shadow:0 0 0 6px rgba(47,163,107,0)}}
  @media (prefers-reduced-motion:reduce){.open-pill i{animation:none}}
  .inline-chip{display:inline-flex;align-items:center;gap:6px;margin:-4px .15em;padding:4px 11px 4px 7px;border-radius:var(--radius-pill);background:#f1f4f2;color:#3e5c4f;font-weight:var(--fw-semibold);font-size:.95em;line-height:1.2;vertical-align:middle;transition:box-shadow .25s var(--ease-out),background-color .25s ease}
  .inline-chip img{width:20px;height:20px}
  .logo-pop:hover .inline-chip,.logo-pop.is-open .inline-chip{background:#e6eee9;box-shadow:0 8px 18px -8px rgba(23,24,26,.35)}
  .inline-chip--white{padding:6px 12px;background:#fff;box-shadow:0 0 0 1px var(--line)}
  .inline-chip .chip-wordmark{width:auto;height:15px}
  .logo-pop:hover .inline-chip--white,.logo-pop.is-open .inline-chip--white{background:#fff;box-shadow:0 0 0 1px var(--line),0 8px 18px -8px rgba(23,24,26,.35)}
  .inline-chip{height:1.75em;box-sizing:border-box;padding-top:0;padding-bottom:0}
  .inline-chip img{width:1.2em;height:1.2em}
  .inline-chip .chip-wordmark{width:auto;height:.9em}
  .inline-chip:not(.inline-chip--white){margin-right:0}