/* ================= CloudBuds case page ================= */
:root{--cb-bg:#f5f5f7;--cb-accent:#1a6aff;--cb-glow:#8ff08a}
[data-theme="dark"]{--cb-bg:#1c1c1e}
.cb{--pad:clamp(72px,9vw,128px)}
.cb section{padding:var(--pad) 0}
.cb .alt{background:var(--bg)}
.cb h2{font-size:clamp(28px,3.4vw,46px);line-height:1.08;letter-spacing:-.025em}
.cb .lead{font-size:clamp(17px,1.5vw,20px);color:var(--ink-2);max-width:56ch;margin:14px 0 0}
.cb .rule{width:56px;height:2px;background:var(--cb-accent);margin:14px 0 18px}
.cb p{color:var(--ink-2)}
/* renders: multiply removes the light studio background so every image sits on one page colour */
.render{mix-blend-mode:multiply}
[data-theme="dark"] .render{mix-blend-mode:normal}
[data-theme="dark"] .jpg{background:#f2f3f5;border-radius:20px}
.ph{display:grid;place-items:center;align-content:center;text-align:center;border-radius:20px;color:var(--ink-2);font:500 13px/1.5 var(--display);padding:24px;background:repeating-linear-gradient(135deg,var(--cb-bg) 0 14px,color-mix(in srgb,var(--line) 55%,var(--cb-bg)) 14px 15px)}
.ph b{display:block;color:var(--ink);font-size:14px;margin-bottom:2px}
.ph small{display:block;font-size:11px;opacity:.7}
.fig{position:relative}.fig img{width:100%;height:100%;object-fit:cover}
.fig .ph{position:absolute;inset:0}.fig.ok .ph{display:none}

/* ---- chapter rail ---- */
.rail{position:fixed;right:22px;top:50%;transform:translateY(-50%);z-index:40;display:flex;flex-direction:column;align-items:flex-end;gap:6px}
.rail a{display:flex;flex-direction:row-reverse;align-items:center;gap:10px;color:var(--ink-2);font:500 12px var(--display);text-decoration:none;padding:4px 0;opacity:.55;transition:opacity .3s,color .3s}
.rail a::after{content:"";display:block;width:14px;height:1.5px;background:currentColor;border-radius:1px;transition:width .3s;flex:none}
.rail a span{white-space:nowrap;max-width:120px;overflow:hidden;text-overflow:ellipsis}
.rail a:hover{opacity:1}
.rail a.on{opacity:1;color:var(--ink);font-weight:600}.rail a.on::after{width:26px}
@media(max-width:1180px){.rail a span{display:none}.rail{right:16px}}
@media(max-width:760px){.rail{display:none}}

/* ---- hero ---- */
.cb-hero{position:relative;min-height:100svh;display:grid;align-items:center;overflow:hidden;background:var(--bg);padding:120px 0 60px}
.cb-hero .wrap{display:grid;grid-template-columns:1fr 1.25fr;align-items:center;gap:32px}
.cb-hero .ghost{font:700 clamp(64px,9vw,132px)/1 var(--display);letter-spacing:-.06em;color:var(--line);user-select:none;margin:0 0 -.28em -.04em;position:relative;z-index:0;transition:transform .2s}
.cb-hero h1{font-size:clamp(52px,7vw,104px);line-height:.95;letter-spacing:-.04em;position:relative}
.cb-hero .tag{font-size:clamp(17px,1.6vw,22px);color:var(--ink-2);margin:14px 0 0;max-width:30ch}
.cb-hero .intro{max-width:min(44ch,100%);margin:22px 0 0;font-size:15px}
.cb-hero .meta{display:flex;gap:28px;margin-top:30px;font-size:13px;color:var(--ink-2)}
.cb-hero .meta b{display:block;color:var(--ink);font-family:var(--display);font-size:14px}
.badge{display:inline-flex;align-items:center;gap:10px;margin-top:34px;font:600 14px var(--display)}
.badge img{height:44px;width:auto}
.stack{position:relative;aspect-ratio:1;width:min(100%,72svh);justify-self:end}
.stack img{position:absolute;width:auto;height:auto;object-fit:contain;transition:transform .15s linear;will-change:transform}
.stack .l1{left:6%;top:34%;width:86%;z-index:1;animation:cbFloat 7s ease-in-out infinite}
.stack .l2{left:12%;top:0;width:27%;z-index:2;animation:cbFloat 5.6s ease-in-out .8s infinite}
.stack .l3{left:47%;top:12%;width:26%;z-index:2;animation:cbFloat 6.4s ease-in-out 1.9s infinite}
@keyframes cbFloat{0%,100%{margin-top:0}50%{margin-top:-14px}}
@media(prefers-reduced-motion:reduce){.stack img{animation:none}}
.cbcue{position:absolute;left:50%;bottom:22px;width:40px;height:40px;margin-left:-20px;display:flex;align-items:center;justify-content:center;color:var(--ink-2);z-index:3;opacity:.85}
.cbcue svg{width:24px;height:24px;animation:pcueBob 1.8s ease-in-out infinite}
.cb-hero .intro{text-align:left;padding:0;color:var(--ink-2);line-height:1.6}
.cb-hero h1{font-size:clamp(44px,5.6vw,80px)}
/* full-width film (legacy) */
.film-full{padding:0;background:var(--bg)}
.film-full video{display:block;width:100%;max-height:100svh;aspect-ratio:16/9;object-fit:cover;background:var(--tile)}
/* the film as a player window */
.film-player{padding:0 0 clamp(48px,6vw,88px)}
.player{position:relative;border-radius:26px;overflow:hidden;background:var(--tile);aspect-ratio:16/9;cursor:pointer;outline:0;box-shadow:0 40px 90px -40px rgba(0,0,0,.28)}
.player:focus-visible{box-shadow:0 0 0 3px var(--accent)}
.player video{display:block;width:100%;height:100%;object-fit:cover}
.player .big{position:absolute;left:50%;top:50%;width:88px;height:88px;margin:-44px 0 0 -44px;border-radius:50%;border:0;background:rgba(255,255,255,.92);color:#1d1d1f;display:grid;place-items:center;box-shadow:0 12px 34px rgba(0,0,0,.16);transition:transform .25s,opacity .25s;cursor:pointer;padding:0}
.player .big svg{width:32px;height:32px;fill:currentColor;grid-area:1/1}.player .big .i-play{margin-left:4px}
.player .big .i-re,.player.ended .big .i-play{display:none}.player.ended .big .i-re{display:block}
.player:hover .big{transform:scale(1.06)}
.player .tag{position:absolute;left:28px;bottom:26px;display:flex;align-items:center;gap:10px;font:600 14px var(--display);color:#1d1d1f;background:rgba(255,255,255,.86);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:10px 16px;border-radius:980px;transition:opacity .25s}
.player .tag span{color:#6e6e73;font-weight:500}
.player.started .big,.player.started .tag{opacity:0;pointer-events:none}
.player.started:not(.playing) .big{opacity:1;pointer-events:auto}
.player .ctl{position:absolute;left:18px;right:18px;bottom:18px;display:flex;align-items:center;gap:10px;padding:6px 14px 6px 6px;border-radius:980px;background:rgba(255,255,255,.86);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);color:#1d1d1f;font:500 12px var(--display);opacity:0;transform:translateY(8px);transition:opacity .25s,transform .25s;pointer-events:none}
.player.started .ctl{opacity:1;transform:none;pointer-events:auto}
.player.playing.idle .ctl{opacity:0;transform:translateY(8px);pointer-events:none}
.player.playing.idle{cursor:none}
.player .ctl button{width:34px;height:34px;border-radius:50%;border:0;background:transparent;color:inherit;display:grid;place-items:center;cursor:pointer;padding:0;flex:none}
.player .ctl button:hover{background:rgba(0,0,0,.06)}
.player .ctl svg{width:18px;height:18px;fill:currentColor}
.player .ctl .i-pause,.player.playing .ctl .i-play{display:none}.player.playing .ctl .i-pause{display:block}
.player .ctl .i-off,.player.muted .ctl .i-on{display:none}.player.muted .ctl .i-off{display:block}
.player .seek{flex:1;height:22px;display:flex;align-items:center;cursor:pointer;touch-action:none}
.player .seek i{display:block;width:100%;height:3px;border-radius:2px;background:rgba(0,0,0,.14);position:relative}
.player .seek i::after{content:"";position:absolute;left:0;top:0;bottom:0;width:calc(var(--p,0)*100%);background:#1d1d1f;border-radius:2px}
.player .seek i::before{content:"";position:absolute;left:calc(var(--p,0)*100%);top:50%;width:11px;height:11px;margin:-5.5px 0 0 -5.5px;border-radius:50%;background:#1d1d1f;opacity:0;transition:opacity .2s}
.player .seek:hover i::before{opacity:1}
.player .time,.player .dur{font-variant-numeric:tabular-nums;min-width:32px}.player .dur{text-align:right;color:#6e6e73}
.player:fullscreen{border-radius:0;aspect-ratio:auto;background:#000}.player:fullscreen video{object-fit:contain}
@media(max-width:700px){.film-player .wrap{padding:0}.player{border-radius:0;box-shadow:none}.player .big{width:64px;height:64px;margin:-32px 0 0 -32px}.player .big svg{width:26px;height:26px}.player .tag{left:14px;bottom:14px;font-size:13px;padding:8px 14px}.player .ctl{left:10px;right:10px;bottom:10px}}
/* frame-sequence scrub */
.cb .scrub canvas.frames{width:100%;height:100%;display:block;justify-self:stretch;background:var(--tile)}
/* closing */
.quote .soon{margin:22px 0 0;text-align:center;font:600 13px/1 var(--display);letter-spacing:.18em;text-transform:uppercase;color:var(--ink-2)}

@media(max-width:900px){.cb-hero .wrap{grid-template-columns:1fr}}

/* ---- problem ---- */
.problem{position:relative;overflow:hidden;background:var(--bg)}
.problem .fig{aspect-ratio:16/9;max-height:92vh}
.problem .fig img{object-fit:cover}
.problem .heat{position:absolute;left:var(--hx,54%);top:var(--hy,40%);width:22vmin;height:22vmin;border-radius:50%;transform:translate(-50%,-50%);background:radial-gradient(circle,rgba(229,1,18,.55),rgba(229,1,18,0) 70%);mix-blend-mode:multiply;animation:heat 2.6s ease-in-out infinite;pointer-events:none}
@keyframes heat{0%,100%{transform:translate(-50%,-50%) scale(.85);opacity:.55}50%{transform:translate(-50%,-50%) scale(1.15);opacity:1}}
.problem .band{position:relative;z-index:2;width:100%;background:color-mix(in srgb,var(--bg) 78%,transparent);backdrop-filter:blur(10px);padding:36px 0;text-align:center}
.problem .band p{font:600 clamp(20px,2.6vw,34px)/1.25 var(--display);color:var(--ink);letter-spacing:-.02em;margin:0 auto;max-width:28ch}
.problem .band em{font-style:normal;color:var(--cb-accent)}

/* ---- evidence ---- */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:44px}
.stat{background:var(--card);border-radius:20px;padding:26px 24px;position:relative}
.stat .k{font:600 14px var(--display);margin-bottom:18px}
.stat .cmp{display:grid;gap:10px}
.stat .row2{display:grid;grid-template-columns:96px 1fr 62px;align-items:center;gap:12px;font-size:12px;color:var(--ink-2)}
.stat .bar{height:10px;border-radius:6px;background:var(--line);overflow:hidden}
.stat .bar i{display:block;height:100%;width:0;background:var(--ink-2);border-radius:6px;transition:width 1.4s cubic-bezier(.2,.8,.2,1)}
.stat .row2.hi .bar i{background:var(--cb-accent)}.stat .row2.hi b{color:var(--cb-accent)}
.stat b{font:700 15px var(--display);text-align:right}
.stat{transition:border-color .25s}.stat:hover{border-color:var(--cb-accent)}
.stat .cite{max-height:0;overflow:hidden;opacity:0;margin-top:0;padding:0 14px;border-radius:12px;background:color-mix(in srgb,var(--cb-accent) 9%,var(--card));color:var(--ink);font-size:11.5px;line-height:1.5;transition:max-height .45s ease,opacity .3s,padding .3s,margin .3s}
.stat:hover .cite,.stat.open .cite{max-height:240px;opacity:1;padding:12px 14px;margin-top:12px}
.stat .cite b{color:var(--cb-accent);font-family:var(--display)}
.stat .src{margin-top:16px;font-size:11px;color:var(--ink-2)}
.who{display:grid;grid-template-columns:1fr 2fr;gap:40px;margin-top:56px;align-items:start}
.who h3{font-size:clamp(22px,2.6vw,32px);letter-spacing:-.02em}
.who .sub{color:var(--cb-accent);font:600 15px var(--display);margin-top:6px}
.who ul{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.who li{padding:16px 18px;border:1px solid var(--line);border-radius:14px;font-size:15px}
.who li b{font-family:var(--display)}
@media(max-width:900px){.stats{grid-template-columns:1fr}.who{grid-template-columns:1fr}}

/* ---- research: bubble map ---- */
.research{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(32px,5vw,72px);align-items:center}
.bubbles{position:relative;aspect-ratio:1;width:min(100%,640px);margin:0 auto}
.bub{position:absolute;border-radius:50%;display:grid;place-items:center;text-align:center;font:600 8.5px/1.05 var(--display);overflow:hidden;color:var(--ink);transform:translate(-50%,-50%);transition:opacity .35s,transform .35s;padding:3%;cursor:default;box-sizing:border-box}
.bub.t{font-size:10px;color:var(--ink);opacity:1;overflow:visible;padding:4%}
.bubbles[data-focus] .bub:not(.k-focus){opacity:.18}
.bubbles .bub.k-focus{transform:translate(-50%,-50%) scale(1.06)}
.bub-info{margin-top:12px;font-size:13px;color:var(--ink-2);min-height:40px;text-align:center}
.legend{display:grid;gap:10px}
.legend button{display:flex;align-items:center;gap:12px;text-align:left;background:transparent;border:1px solid var(--line);border-radius:14px;padding:12px 14px;color:var(--ink);cursor:pointer;font:500 14px var(--text);transition:.2s}
.legend button i{width:14px;height:14px;border-radius:50%;flex:none}
.legend button:hover,.legend button.on{border-color:var(--ink)}
.legend button small{display:block;color:var(--ink-2);font-size:12px;margin-top:2px}
.legend button.dim{opacity:.6}
@media(max-width:900px){.research{grid-template-columns:1fr}}

/* ---- priorities flip ---- */
.prio{margin-top:var(--pad)}
.prio .top{display:flex;justify-content:space-between;align-items:end;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:4px;gap:4px}
.seg button{border:0;background:transparent;color:var(--ink);font:600 13px var(--display);padding:9px 16px;border-radius:999px;cursor:pointer}
.seg button.on{background:var(--ink);color:var(--bg)}
.pyr{display:grid;gap:6px;max-width:560px;margin:0 auto}
.pyr .lv{height:52px;display:grid;place-items:center;font:600 14px var(--display);border-radius:8px;color:#111;transition:transform .6s cubic-bezier(.2,.8,.2,1),width .6s,background .6s;margin:0 auto;width:calc(40% + var(--i)*15%);background:color-mix(in srgb,var(--c) calc(35% + var(--i)*16%),#fff)}
.needs{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:34px}
.needs div{padding:16px 18px;border-radius:14px;background:var(--card);font:600 15px var(--display)}
.needs div span{display:block;font:400 13px var(--text);color:var(--ink-2);margin-top:4px}

/* ---- features chips ---- */
.feat6{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px);align-items:center}
.chips2{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:26px 0 24px}
.chips2 div{background:var(--card);border-radius:999px;padding:12px 16px;font:600 14px var(--display);display:flex;gap:10px;align-items:center;opacity:0;transform:translateY(10px);transition:.5s}
.in .chips2 div{opacity:1;transform:none}
.chips2 div:nth-child(2){transition-delay:.06s}.chips2 div:nth-child(3){transition-delay:.12s}.chips2 div:nth-child(4){transition-delay:.18s}.chips2 div:nth-child(5){transition-delay:.24s}.chips2 div:nth-child(6){transition-delay:.3s}
.chips2 i{width:8px;height:8px;border-radius:50%;background:var(--cb-accent);flex:none}
@media(max-width:900px){.feat6{grid-template-columns:1fr}}

/* ---- process strip ---- */
/* ---- process stepper (stage + arrows + thumbs/list; keyboard, swipe, gentle autoplay) */
.steps{display:grid;gap:14px}
.steps:not(.titled){max-width:min(100%,calc(76vh*1.5));margin:0 auto}
.steps .stage{position:relative}
.steps .stage .fig{position:relative;border-radius:20px;overflow:hidden;background:var(--cb-bg);touch-action:pan-y;user-select:none;-webkit-user-select:none;cursor:default}
.steps .sl{position:absolute;inset:0;opacity:0;transform:scale(1.035);transition:opacity .55s ease,transform 1.1s cubic-bezier(.2,.7,.2,1);pointer-events:none}
.steps .sl.on{opacity:1;transform:none;pointer-events:auto}
.steps .sl img{width:100%;height:100%;object-fit:cover;display:block;-webkit-user-drag:none}
.steps .sl .ph{position:absolute;inset:0}.steps .sl.ok .ph{display:none}
.steps .arr{all:unset;box-sizing:border-box;position:absolute;top:50%;transform:translateY(-50%);width:46px;height:46px;border-radius:50%;border:0;background:var(--bg);color:var(--ink);box-shadow:0 6px 22px rgba(0,0,0,.16);display:grid;place-items:center;cursor:pointer;z-index:3;transition:transform .2s,box-shadow .2s}
.steps .arr:hover{transform:translateY(-50%) scale(1.08);box-shadow:0 10px 28px rgba(0,0,0,.22)}
.steps .arr:active{transform:translateY(-50%) scale(.96)}
.steps .arr.al{left:16px}.steps .arr.ar{right:16px}
.steps .arr svg{width:20px;height:20px}
.steps .ctr{position:absolute;left:16px;bottom:14px;background:var(--bg);color:var(--ink);border-radius:999px;padding:7px 13px;font:600 12px var(--display);letter-spacing:.1em;z-index:3;box-shadow:0 4px 14px rgba(0,0,0,.1)}
.steps .ctr span{color:var(--ink-2);margin-left:5px}
.steps .thumbs{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none;padding:3px;margin:0 -3px}
.steps .thumbs::-webkit-scrollbar{display:none}
.steps .thumbs button{flex:1 0 64px;min-width:64px;aspect-ratio:3/2;border-radius:8px;overflow:hidden;border:0;padding:0;background:var(--cb-bg);cursor:pointer;opacity:.42;outline:2px solid transparent;outline-offset:2px;transition:opacity .2s,outline-color .2s,transform .2s}
.steps .thumbs button img{width:100%;height:100%;object-fit:cover;display:block}
.steps .thumbs button:hover{opacity:.85;transform:translateY(-2px)}
.steps .thumbs button.on{opacity:1;outline-color:var(--ink)}
.steps .hint{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font:500 12px/1.6 var(--display);color:var(--ink-2)}
.steps .hint kbd{display:inline-block;border:1px solid var(--line);border-radius:5px;padding:0 6px;font:inherit;line-height:1.5;margin:0 1px}
.steps .autolbl{opacity:0;transition:opacity .3s}.steps.auto .autolbl{opacity:1}
.steps .sprog i{transition:width .5s cubic-bezier(.2,.7,.2,1)}
/* titled variant: stage left, step list right */
.steps.titled{grid-template-columns:1.3fr 1fr;gap:36px;align-items:start}
.steps.titled .stage{position:sticky;top:96px}
.steps.titled .side{display:grid;gap:14px}
.steps.titled .list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.steps.titled .list li{border-bottom:1px solid var(--line)}
.steps.titled .list button{all:unset;display:block;width:100%;box-sizing:border-box;padding:18px 0;cursor:pointer;color:var(--ink)}
.steps.titled .list .n{font:600 12px var(--display);letter-spacing:.1em;color:var(--ink-2);transition:color .2s}
.steps.titled .list b{display:block;font:600 20px/1.2 var(--display);margin:6px 0 0;color:var(--ink-2);transition:color .25s,transform .35s}
.steps.titled .list p{font-size:14px;line-height:1.55;margin:0;max-height:0;opacity:0;overflow:hidden;transition:max-height .55s cubic-bezier(.2,.7,.2,1),opacity .4s,margin .4s}
.steps.titled .list li.on .n{color:var(--cb-accent)}
.steps.titled .list li.on b{color:var(--ink)}
.steps.titled .list li.on p{max-height:220px;opacity:1;margin-top:10px}
.steps.titled .list li:not(.on) button:hover b{color:var(--ink)}
@media(max-width:860px){.steps.titled{grid-template-columns:1fr;gap:20px}.steps.titled .stage{position:static}.steps .arr{width:40px;height:40px}.steps .arr.al{left:10px}.steps .arr.ar{right:10px}}
.sprog{height:2px;background:var(--line);margin-top:8px;position:relative}.sprog i{position:absolute;left:0;top:0;height:100%;width:25%;background:var(--ink);transition:left .2s}

/* ---- geometry slider ---- */
.geo{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px);align-items:center}
.geo .fig{aspect-ratio:1;position:relative}
.geo .fig img{position:absolute;inset:0;object-fit:contain}
.geo .lines{opacity:var(--g,0);mix-blend-mode:multiply;transform:translate(0,1.6%) scale(.668);transform-origin:50% 50%}.geo .rend{opacity:calc(1 - var(--g,0)*.85)}
[data-theme="dark"] .geo .lines{mix-blend-mode:normal;filter:invert(1)}
.range{-webkit-appearance:none;width:100%;height:2px;background:var(--line);outline:0;margin:22px 0 8px}
.range::-webkit-slider-thumb{-webkit-appearance:none;width:22px;height:22px;border-radius:50%;background:var(--ink);border:3px solid var(--bg);box-shadow:0 0 0 1px var(--line);cursor:pointer}
.range-l{display:flex;justify-content:space-between;font:600 12px var(--display);color:var(--ink-2)}
@media(max-width:900px){.geo{grid-template-columns:1fr}}

/* ---- branding ---- */
.brand{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px)}
.logo-fig{aspect-ratio:3/1;border-radius:20px;background:var(--cb-bg);display:grid;place-items:center;overflow:hidden}
.logo-fig img{max-width:70%;max-height:60%;object-fit:contain}
.sw{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:20px}
.sw button{border-radius:16px;padding:10px;background:var(--card);cursor:pointer;text-align:left;color:var(--ink)}
.sw i{display:block;aspect-ratio:1;border-radius:10px;margin-bottom:10px}
.sw b{display:block;font:600 13px var(--display)}.sw span{font-size:11px;color:var(--ink-2)}
.sw button.copied span{color:var(--cb-accent)}
.mats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:40px;perspective:1200px}
.mat{position:relative;aspect-ratio:3/4;cursor:pointer}
.mat .f,.mat .b{position:absolute;inset:0;border-radius:18px;backface-visibility:hidden;transition:transform .7s cubic-bezier(.2,.8,.2,1);overflow:hidden}
.mat .f{background:var(--cb-bg)}.mat .f img{width:100%;height:100%;object-fit:cover}
.mat .f figcaption{position:absolute;left:0;right:0;bottom:0;padding:14px;font:600 13px var(--display);background:linear-gradient(transparent,rgba(0,0,0,.45));color:#fff}
.mat .b{background:var(--ink);color:var(--bg);transform:rotateY(180deg);padding:18px;font-size:12px;line-height:1.5}
.mat .b b{display:block;font:600 14px var(--display);margin-bottom:10px}
.mat.flip .f{transform:rotateY(180deg)}.mat.flip .b{transform:rotateY(360deg)}
@media(hover:hover){.mat:hover .f{transform:rotateY(180deg)}.mat:hover .b{transform:rotateY(360deg)}}
@media(max-width:900px){.brand{grid-template-columns:1fr}.mats,.sw{grid-template-columns:repeat(2,1fr)}}

/* ---- problem → solution flip cards ---- */
.ps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;perspective:1400px;margin-top:40px}
.psc{position:relative;aspect-ratio:3/4.4;cursor:pointer}
.psc>div{position:absolute;inset:0;border-radius:20px;backface-visibility:hidden;transition:transform .8s cubic-bezier(.2,.8,.2,1);overflow:hidden}
.psc .q{background:var(--card);padding:24px;display:flex;flex-direction:column;justify-content:space-between}
.psc .q .n{font:600 12px var(--display);color:var(--ink-2);letter-spacing:.1em}
.psc .q h3{font-size:22px;line-height:1.15}
.psc .q .hint{font:600 12px var(--display);color:var(--cb-accent)}
.psc .a{transform:rotateY(180deg);background:var(--cb-bg)}
.psc .a img{width:100%;height:100%;object-fit:cover}
.psc .a .t{position:absolute;left:0;right:0;bottom:0;padding:18px;background:linear-gradient(transparent,rgba(0,0,0,.55));color:#fff}
.psc .a h3{font-size:17px;margin-bottom:6px}.psc .a p{font-size:12px;color:#e5e5e5;margin:0;line-height:1.45}
.psc.flip .q{transform:rotateY(-180deg)}.psc.flip .a{transform:rotateY(0)}
@media(hover:hover){.psc:hover .q{transform:rotateY(-180deg)}.psc:hover .a{transform:rotateY(0)}}
@media(max-width:900px){.ps{grid-template-columns:repeat(2,1fr)}}

/* ---- feature heroes ---- */
.fh{display:grid;grid-template-columns:1fr 1.4fr;gap:clamp(24px,4vw,64px);align-items:center}
.fh.flip>.txt{order:2}
.fh .fig{aspect-ratio:4/3}.fh .fig img{object-fit:contain}
.fh .fig video{width:100%;height:100%;object-fit:cover;border-radius:20px}
@media(max-width:900px){.fh{grid-template-columns:1fr}.fh.flip>.txt{order:0}}
/* night section: hover (tap on touch) the earbuds to switch the lights off */
.night{--n:0;background:color-mix(in srgb,#0b0b0c calc(var(--n)*100%),var(--bg));color:color-mix(in srgb,#fff calc(var(--n)*100%),var(--ink))}
.night p,.night .hint{color:color-mix(in srgb,#b9bcc4 calc(var(--n)*100%),var(--ink-2))}
.night .hint{display:inline-flex;align-items:center;gap:8px;margin-top:22px;font:600 12px var(--display)}
.night .hint svg{width:16px;height:16px}
.night .hint .t{display:none}@media(hover:none){.night .hint .m{display:none}.night .hint .t{display:inline}}
.night .fig{position:relative;aspect-ratio:1;max-height:min(70svh,560px);width:100%;cursor:pointer;justify-self:center}
.night .fig img{position:absolute;inset:0;object-fit:contain}
.night .day{opacity:calc(1 - var(--n))}.night .glow{opacity:var(--n);mix-blend-mode:normal}
.night .day.render{mix-blend-mode:multiply}
[data-theme="dark"] .night .day.render{mix-blend-mode:normal}   /* multiply on a black stage made the pair vanish in dark mode */

/* ---- case charge ---- */
.case{display:grid;grid-template-columns:minmax(0,820px);justify-content:center}
.case .fig{aspect-ratio:4/3;position:relative;cursor:pointer}
.case .fig img{position:absolute;inset:0;object-fit:contain;transition:opacity .5s}
.case .fig .on{opacity:0}.case .fig.charging .on{opacity:1}
@media(hover:hover){.case .fig:hover .on{opacity:1}}
.case .fig .lbl{position:absolute;left:50%;bottom:6%;transform:translateX(-50%);font:600 12px var(--display);color:var(--ink-2);background:var(--card);border:1px solid var(--line);border-radius:999px;padding:6px 12px;z-index:2}

/* ---- colourways ---- */
.cw{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px);align-items:center}
.cw .fig{aspect-ratio:3/4;max-height:70vh;position:relative}
.cw .fig img{position:absolute;inset:0;object-fit:contain;opacity:0;transition:opacity .5s}
.cw .fig img.on{opacity:1}
.cw .dots{display:flex;gap:14px;margin-top:20px}
.cw .dots button{width:44px;height:44px;border-radius:50%;border:2px solid var(--line);background:var(--c);cursor:pointer;transition:.2s}
.cw .dots button.on{border-color:var(--ink);transform:scale(1.12)}
@media(max-width:900px){.cw{grid-template-columns:1fr}}

/* ---- lightbox ---- */
.lb{position:fixed;inset:0;z-index:100;background:rgba(0,0,0,.86);display:none;place-items:center;padding:4vw;cursor:zoom-out}
.lb.open{display:grid}.lb img{max-width:100%;max-height:100%;border-radius:12px;background:#fff}
.zoom{cursor:zoom-in}

/* film: full-bleed frame, caption sits under it — never on it */
.cb .scrub .stage{display:block;padding:0}
.cb .scrub canvas.frames{position:absolute;inset:0;width:100%;height:100%}
.cb .scrub .caps{position:absolute;left:0;right:0;bottom:max(13vh,72px);height:auto;pointer-events:none}
.cb .scrub .cap{position:absolute;left:0;right:0;top:auto;bottom:0;padding:0 24px;font-size:clamp(18px,2.2vw,28px);text-shadow:0 0 18px var(--bg),0 0 6px var(--bg)}
.cb .scrub .bar{position:absolute;left:50%;bottom:max(7vh,40px);transform:translateX(-50%);margin:0;width:140px;height:3px;border-radius:2px;transition:opacity .35s}
.cb .scrub .bar i{border-radius:2px}
.scrub .hint{position:absolute;left:0;right:0;bottom:max(6vh,34px);display:flex;flex-direction:column;align-items:center;gap:6px;font:600 11px/1 var(--display);letter-spacing:.18em;text-transform:uppercase;color:var(--ink-2);opacity:0;transition:opacity .4s;pointer-events:none}
.scrub .hint svg{width:22px;height:22px;animation:pcueBob 1.8s ease-in-out infinite}
.scrub.start .hint{opacity:1}
.scrub.start .bar{opacity:0}
#film2{height:350vh}
@media(max-width:760px){.cb .scrub{height:250vh}.cb .scrub .stage{height:100svh}.cb .scrub canvas.frames{top:50%;bottom:auto;height:62svh;transform:translateY(-50%)}.cb .scrub .caps{bottom:calc(19svh + 16px)}.cb .scrub .bar{bottom:19svh}#film2{height:300vh}.cb .scrub .cap{font-size:17px}}

/* v0.3 white restyle: drop decorative ghost numerals and accent rules */
.cb-hero .ghost{display:none}
.cb .rule{display:none}

@media(max-width:900px){.stack{width:min(100%,60svh);justify-self:center;margin-top:8px}.cb-hero{padding-top:96px}.cbcue{display:none}}

/* ---- soft & sound: glass ring (WebGL) around the pair ---- */
#wave{background:var(--cb-bg)}
.glass{position:relative;max-width:980px;margin:0 auto;aspect-ratio:1}
.glass canvas.glass-cv{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.glass{cursor:none;touch-action:pan-y}
.glass .pair{position:absolute;left:50%;top:50%;width:64%;transform:translate(-50%,-50%);display:block;animation:cbHover 5.5s ease-in-out infinite}
@keyframes cbHover{0%,100%{transform:translate(-50%,calc(-50% + 7px))}50%{transform:translate(-50%,calc(-50% - 7px))}}
@media(prefers-reduced-motion:reduce){.glass .pair{animation:none}}
@media(max-width:700px){.glass{max-width:none;margin:0 -8px}.glass .pair{width:62%}.hl figure{flex-basis:86%;aspect-ratio:4/3}.hl figcaption{padding:18px 18px 30px}}


/* ---- hero v2: sketch → render → callouts, scroll-driven ---- */
.cb-hero2{position:relative;height:250svh;background:var(--bg)}
.cb-hero2 .hstage{position:sticky;top:0;height:100svh;display:grid;align-items:center;overflow:hidden}
.cb-hero2 .wrap{max-width:1160px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);align-items:center;gap:clamp(20px,4vw,56px);padding-top:var(--nav)}
.cb-hero2 h1{font-size:clamp(44px,5.6vw,80px);line-height:.95;letter-spacing:-.04em;position:relative}
.cb-hero2 .tag{font-size:clamp(17px,1.6vw,22px);color:var(--ink-2);margin:14px 0 0;max-width:30ch}
.cb-hero2 .intro{max-width:min(44ch,100%);margin:22px 0 0;font-size:15px;color:var(--ink-2);line-height:1.6}
.cb-hero2 .draw{position:relative;aspect-ratio:4/3;width:min(100%,100svh);justify-self:center;--zoom:1}
.cb-hero2 .draw .rend{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transform:scale(var(--zoom))}
.cb-hero2 .draw svg.lines{position:absolute;left:50%;top:50%;width:89.1%;aspect-ratio:1600/1279;overflow:visible;transform:translate(-50%,-47%)}
.cb-hero2 .draw svg.lines path{fill:none;stroke:var(--ink);stroke-width:1.2;vector-effect:non-scaling-stroke;stroke-linecap:round;stroke-linejoin:round;opacity:.85}
.cb-hero2 .draw svg.leads{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}
.cb-hero2 .draw svg.leads line{stroke:var(--ink-2);stroke-width:1;vector-effect:non-scaling-stroke;opacity:0;transition:opacity .5s}
.cb-hero2 .draw svg.leads circle{fill:var(--red);opacity:0;transition:opacity .4s;vector-effect:non-scaling-stroke}
.cb-hero2 .draw svg.leads .on{opacity:.75}.cb-hero2 .draw svg.leads circle.on{opacity:1}
.cb-hero2 .co{position:absolute;font:600 13px/1.2 var(--display);color:var(--ink);letter-spacing:-.01em;white-space:nowrap;opacity:0;transform:translateY(6px);transition:opacity .5s ease,transform .5s ease;pointer-events:none;background:var(--bg);padding:6px 8px;border-radius:8px}
.cb-hero2 .co.on{opacity:1;transform:none}
.cb-hero2 .co b{color:var(--red);margin-right:8px;font-weight:700}
.cb-hero2 .co.tl{left:0;top:2%}.cb-hero2 .co.tr{right:0;top:2%}.cb-hero2 .co.bl{left:0;bottom:2%}.cb-hero2 .co.br{right:0;bottom:2%}
.cb-hero2 .draw{transform-origin:50% 50%;will-change:transform}
.cb-hero2 .copy>*{opacity:0;transform:translateY(14px);transition:opacity .8s ease,transform .8s ease}
.cb-hero2.ready .copy>*{opacity:1;transform:none}
.cb-hero2.ready .copy>*:nth-child(2){transition-delay:.12s}.cb-hero2.ready .copy>*:nth-child(3){transition-delay:.24s}.cb-hero2.ready .copy>*:nth-child(4){transition-delay:.36s}
.cb-hero2 .cbcue{transition:opacity .4s;opacity:0;pointer-events:none}
.cb-hero2.ready .cbcue{opacity:.85;pointer-events:auto}
.cb-hero2.end .cbcue{opacity:0;pointer-events:none}
@media(max-width:900px){
  .cb-hero2{height:220svh}
  .cb-hero2 .wrap{grid-template-columns:1fr;gap:8px;align-content:center}
  .cb-hero2 .intro{display:none}
  .cb-hero2 .draw{width:100%}
  .cb-hero2 .co{font-size:11px;padding:4px 6px}
  .cb-hero2 .co .x{display:none}
}

/* ---- press it: image warp of the pair (WebGL) ---- */
#press{background:var(--cb-bg)}
.squish{position:relative;max-width:1000px;margin:0 auto;aspect-ratio:1800/1148;touch-action:pan-y;user-select:none;-webkit-user-select:none}
.squish canvas.squish-cv{position:absolute;inset:0;width:100%;height:100%;display:block}
.squish img.fallback{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;display:none}
.squish.nogl img.fallback{display:block}
.squish .hint{position:absolute;left:50%;bottom:-6px;transform:translateX(-50%);font:600 12px var(--display);color:var(--ink-2);white-space:nowrap;display:flex;align-items:center;gap:8px;opacity:.85}
.squish .hint::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--red)}
.squish .hint .t{display:none}@media(hover:none){.squish .hint .m{display:none}.squish .hint .t{display:inline}}
@media(max-width:700px){.squish{max-width:none;margin:0 -8px}.squish .hint{font-size:11px}}

/* ---- text beside the interactive, one screen (press it / soft & sound) ---- */
.wrap.wide{max-width:1320px}
.side{display:grid;grid-template-columns:minmax(260px,340px) 1fr;gap:clamp(24px,4vw,56px);align-items:center}
.side .stx h2{font-size:clamp(30px,3.2vw,44px);letter-spacing:-.025em;line-height:1.05;margin:0 0 14px}
.side .stx p{color:var(--ink-2);font-size:16px;line-height:1.55;margin:0 0 20px}
.side .specs{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.side .specs li{position:relative;padding-left:18px;font:600 13.5px/1.4 var(--display);color:var(--ink)}
.side .specs li::before{content:"";position:absolute;left:0;top:6px;width:8px;height:8px;border-radius:50%;background:var(--red)}
.side .specs li span{display:block;font-weight:400;color:var(--ink-2);font-size:13px;margin-top:2px}
#press .squish{max-width:none;margin:0;width:min(100%,calc((100svh - 150px) * 1800 / 1148));justify-self:center}
#wave .glass{max-width:none;margin:0;width:min(100%,calc(100svh - 110px));justify-self:center}
@media(max-width:1100px){.side{grid-template-columns:1fr;gap:28px}.side .stx{max-width:560px}#press .squish,#wave .glass{max-width:900px;width:100%;justify-self:stretch}}
@media(max-width:700px){#press .squish{margin:0 -8px;width:auto}.side .stx h2{font-size:30px}}

/* ---- story: hero → press → ring on one pinned stage ---- */
.cb-hero2.story{height:640svh;--copy:1;--bgmix:0}
.cb-hero2.story .hstage{background:color-mix(in srgb,var(--bg) calc((1 - var(--bgmix))*100%),var(--cb-bg));overflow:hidden}   /* the ring box is wider than the draw: never let it widen the page */
.cb-hero2.story .anchor{position:absolute;left:0;width:1px;height:1px;pointer-events:none}
.cb-hero2.story .copy{opacity:var(--copy);pointer-events:none}
.cb-hero2.story .copy>*{pointer-events:auto}
.cb-hero2.story .draw{will-change:transform;z-index:2}
.cb-hero2.story .draw .ann{position:absolute;inset:0;pointer-events:none;opacity:var(--ann,1)}
.cb-hero2.story .draw .squish{position:absolute;left:-6.17%;top:2.24%;width:112.3%;max-width:none;margin:0;aspect-ratio:1800/1148;opacity:var(--sq,0);pointer-events:none}
.cb-hero2.story .draw .squish .hint{display:none}
.cb-hero2.story .draw .glass{position:absolute;left:50%;top:49.1%;width:187%;max-width:none;margin:0;aspect-ratio:1;transform:translate(-50%,-50%) scale(var(--gs,1));opacity:var(--gl,0);pointer-events:none;cursor:auto}
.cb-hero2.story .draw .glass.off{visibility:hidden}
.cb-hero2.story .sc{position:absolute;left:50%;bottom:clamp(14px,2.2svh,24px);transform:translateX(-50%);width:min(1040px,calc(100% - 48px));text-align:center;pointer-events:none;z-index:3}
.cb-hero2.story .sc>*{opacity:var(--i0,0);transform:translateY(calc((1 - var(--i0,0))*14px))}
.cb-hero2.story .sc>*:nth-child(2){opacity:var(--i1,0);transform:translateY(calc((1 - var(--i1,0))*14px))}
.cb-hero2.story .sc>*:nth-child(3){opacity:var(--i2,0);transform:translateY(calc((1 - var(--i2,0))*14px))}
.cb-hero2.story .sc>*:nth-child(4){opacity:var(--i3,0);transform:translateY(calc((1 - var(--i3,0))*14px))}
.cb-hero2.story .sc .eyebrow{margin-bottom:6px}
.cb-hero2.story .sc h2{font-size:clamp(24px,2.6vw,34px);letter-spacing:-.025em;line-height:1.05;margin:0 0 10px}
.cb-hero2.story .sc p{color:var(--ink-2);font-size:15px;line-height:1.5;max-width:62ch;margin:0 auto 14px}
.cb-hero2.story .sc .specs{list-style:none;margin:0;padding:0;display:flex;justify-content:center;gap:clamp(14px,3vw,40px);flex-wrap:wrap}
.cb-hero2.story .sc .specs li{position:relative;padding-left:16px;font:600 13px/1.35 var(--display);color:var(--ink);text-align:left}
.cb-hero2.story .sc .specs li::before{content:"";position:absolute;left:0;top:5px;width:8px;height:8px;border-radius:50%;background:var(--red)}
.cb-hero2.story .sc .specs li span{display:block;font-weight:400;color:var(--ink-2);font-size:12px}
/* interaction hints: a fingertip that presses the tip / pushes the ring, until the visitor's own pointer arrives */
.cb-hero2.story .demo{position:absolute;display:none;align-items:center;gap:8px;pointer-events:none;z-index:4;font:600 12px var(--display);color:var(--ink-2);white-space:nowrap}
.cb-hero2.story .demo i{display:block;width:12px;height:12px;border-radius:50%;background:var(--red);box-shadow:0 0 0 0 color-mix(in srgb,var(--red) 45%,transparent);animation:demoPulse 2.4s ease-out infinite}
.cb-hero2.story .demo.dp{left:87.4%;top:16.4%;transform:translate(-50%,-50%);flex-direction:row-reverse}
.cb-hero2.story .demo.dp i{animation:demoPulse 2.4s ease-out infinite,demoPress 2.4s cubic-bezier(.4,0,.2,1) infinite}
.cb-hero2.story .demo.dr{left:50%;top:-14%;transform:translate(-50%,-50%)}
.cb-hero2.story .demo.dr i{animation:demoPulse 2.4s ease-out infinite,demoPush 2.4s cubic-bezier(.4,0,.2,1) infinite}
.cb-hero2.story.demo-press .demo.dp,.cb-hero2.story.demo-ring .demo.dr{display:flex}
.cb-hero2.story.touched .demo{display:none}
.cb-hero2.story .demo{transition:opacity .7s ease}.cb-hero2.story.hinted-press .demo.dp,.cb-hero2.story.hinted-wave .demo.dr{opacity:0}
@keyframes demoPulse{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--red) 45%,transparent)}60%{box-shadow:0 0 0 14px transparent}100%{box-shadow:0 0 0 14px transparent}}
@keyframes demoPress{0%,15%{transform:translate(8px,-8px)}45%,60%{transform:translate(-9px,9px)}90%,100%{transform:translate(8px,-8px)}}
@keyframes demoPush{0%,15%{transform:translateY(-10px)}45%,60%{transform:translateY(12px)}90%,100%{transform:translateY(-10px)}}
@media(prefers-reduced-motion:reduce){.cb-hero2.story .demo i{animation:none}}
@media(max-width:900px){
  .cb-hero2.story{height:560svh}
  .cb-hero2.story .sc p{display:none}
  .cb-hero2.story .sc .specs{gap:8px 18px}
  .cb-hero2.story .sc .specs li span{display:none}
  .cb-hero2.story .sc h2{font-size:24px}
  .cb-hero2.story .demo span{display:none}
}
/* ---- CMF: four colourways (the grid rule had gone missing, so the four renders stacked at full width) ---- */
.cw4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:8px}
.cw4 figure{margin:0;aspect-ratio:5/8;border-radius:18px;overflow:hidden;background:var(--cb-bg)}
.cw4 img{width:100%;height:100%;object-fit:cover;display:block}
@media(max-width:700px){.cw4{grid-template-columns:repeat(2,1fr);gap:10px}}

/* ---- evidence: the study and the WHO guidance on one screen ---- */
#evidence{padding:clamp(56px,7vw,96px) 0}
#evidence .wrap{max-width:1180px}
#evidence>.wrap>.reveal:first-child h2{font-size:clamp(26px,3vw,40px);max-width:26ch}
#evidence .lead{font-size:16px;margin-top:10px}
#evidence .ev{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:clamp(20px,3vw,40px);margin-top:28px;align-items:start}
#evidence .stats{grid-template-columns:1fr;gap:12px;margin-top:0}
#evidence .stat{padding:16px 18px 14px;display:grid;grid-template-columns:150px 1fr;column-gap:16px;align-items:center}
#evidence .stat .k{margin:0;font-size:13.5px}
#evidence .stat .cmp{gap:6px}
#evidence .stat .row2{grid-template-columns:92px 1fr 56px;font-size:11.5px}
#evidence .stat .bar{height:8px}
#evidence .stat b{font-size:14px}
#evidence .stat .src{grid-column:1/-1;margin-top:8px;font-size:10.5px}
#evidence .stat .cite{grid-column:1/-1}
#evidence .who{grid-template-columns:1fr;gap:12px;margin-top:0}
#evidence .who>div{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 12px}
#evidence .who h3{font-size:20px;margin:0}
#evidence .who .sub{margin:0;font-size:13px}
#evidence .who p{display:none}
#evidence .who>div a{font-size:13px}
#evidence .who ul{gap:8px}
#evidence .who li{padding:11px 14px;font-size:13px;line-height:1.4;border-radius:12px}
@media(max-width:900px){#evidence .ev{grid-template-columns:1fr}#evidence .stat{grid-template-columns:1fr;row-gap:8px}}