/* shared case-study styles — same tokens as index.html */
:root{
  --bg:#ffffff;--bg-soft:#f7f6f3;--ink:#0d0c22;--ink-soft:#4d4c58;
  --coral:#ff7d59;--yellow:#fff250;--line:rgba(13,12,34,.12);
  --head:"Sora",Arial,sans-serif;--body:"Cabin",sans-serif;
  --r-lg:20px;--r-md:12px;--shadow:0 18px 44px -18px rgba(13,12,34,.18);
  --ease:cubic-bezier(.22,1,.36,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
::selection{background:var(--yellow);color:var(--ink)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2{font-family:var(--head);text-wrap:balance}
p{text-wrap:pretty}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 18px;z-index:100}
.skip:focus{left:0}
.wrap{max-width:1140px;margin:0 auto;padding:0 clamp(20px,4vw,44px)}

nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:70px}
.brand{font-family:var(--head);font-weight:800;font-size:19px;letter-spacing:-.02em}
.brand span{color:var(--accent)}
nav .links{display:flex;gap:26px;font-weight:600;font-size:15px;color:var(--ink-soft)}
nav .links a:hover{color:var(--accent)}
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--head);font-weight:700;font-size:15px;background:var(--coral);color:var(--ink);padding:12px 24px;border-radius:100vw;transition:transform .25s var(--ease),background .25s;box-shadow:0 8px 20px -8px rgba(255,125,89,.55)}
.btn:hover{background:var(--yellow);transform:translateY(-2px)}
.btn.ghost{background:transparent;border:2px solid var(--ink);box-shadow:none}
.btn.ghost:hover{background:var(--ink);color:#fff}
nav .btn{padding:10px 20px;font-size:14px}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:0;flex-shrink:0}
.nav-toggle .bar{display:block;width:22px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s var(--ease),opacity .25s var(--ease)}
.nav-toggle[aria-expanded="true"] .bar:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-menu{visibility:hidden;opacity:0;transform:translateY(-8px);transition:opacity .25s var(--ease),transform .25s var(--ease),visibility 0s .25s;background:#fff;position:absolute;left:0;right:0;box-shadow:0 18px 30px -18px rgba(13,12,34,.25)}
.mobile-menu.open{visibility:visible;opacity:1;transform:none;transition:opacity .25s var(--ease),transform .25s var(--ease)}
.mobile-menu a{display:block;padding:14px clamp(20px,4vw,44px);font-weight:600;font-size:16px;border-top:1px solid var(--line)}
.mobile-menu a.mm-email{color:var(--accent-text,var(--accent))}
@media (prefers-reduced-motion:reduce){.nav-toggle .bar,.mobile-menu{transition:none}}

.case-hero{padding:clamp(44px,7vh,80px) 0 clamp(28px,4vh,44px)}
.crumb{font-weight:600;font-size:15px;color:var(--ink-soft);margin-bottom:22px}
.crumb a:hover{color:var(--accent)}
.client{font-family:var(--head);font-weight:700;font-size:15px;color:color-mix(in srgb,var(--accent) 72%,#1c0d05);margin-bottom:14px}
.case-hero h1{font-weight:800;font-size:clamp(30px,4.6vw,54px);line-height:1.1;letter-spacing:-.03em;max-width:22ch}
.case-hero .lede{margin-top:18px;font-size:clamp(17px,1.5vw,20px);color:var(--ink-soft);max-width:58ch}
.facts{display:flex;flex-wrap:wrap;gap:8px 28px;margin-top:20px;font-size:14px;color:var(--ink-soft)}
.facts b{color:var(--ink);font-weight:600}

.stat-strip{list-style:none;display:flex;flex-wrap:wrap;gap:clamp(24px,5vw,72px);padding:clamp(20px,3.5vh,34px) 0 clamp(10px,2vh,18px);margin:0;border-top:1px solid var(--line)}
.stat-strip li{max-width:220px}
.stat-strip .num{display:block;font-family:var(--head);font-weight:800;font-size:clamp(26px,3vw,38px);letter-spacing:-.02em;line-height:1.05;color:var(--accent-text,var(--accent))}
.stat-strip .lbl{display:block;margin-top:6px;font-weight:600;font-size:14px;color:var(--ink-soft);line-height:1.4}

.journey{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:clamp(18px,3vh,30px) 0 0;counter-reset:jstep}
.journey li{position:relative;list-style:none;background:var(--tint);border-radius:var(--r-md);padding:clamp(16px,2vw,22px);display:flex;flex-direction:column;gap:6px}
.journey li::before{counter-increment:jstep;content:"0" counter(jstep);font-family:var(--head);font-weight:800;font-size:13px;color:var(--accent-text,var(--accent));letter-spacing:.02em}
.journey .st-name{font-family:var(--head);font-weight:700;font-size:clamp(14px,1.5vw,16px);line-height:1.2;color:var(--ink)}
.journey .st-desc{font-size:14px;color:var(--ink-soft);line-height:1.4}
@media (max-width:640px){.journey{grid-template-columns:1fr 1fr}}

/* horizontal skin-strip: same crop, design changing, content still */
.skin-strip{display:flex;gap:14px;overflow-x:auto;padding:18px 4px 10px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.skin-strip figure{flex:0 0 156px;scroll-snap-align:start;margin:0}
.skin-strip img{width:100%;border-radius:12px;border:1px solid var(--line);box-shadow:0 10px 24px -14px rgba(13,12,34,.35)}
.skin-strip figcaption{margin-top:8px;font-size:14px;color:var(--ink-soft);line-height:1.35}
.skin-strip figcaption b{color:var(--ink)}

.stage-band{padding:clamp(8px,2vh,20px) 0 clamp(36px,6vh,60px)}
.stage{position:relative;background:var(--tint);border-radius:var(--r-lg);overflow:hidden;padding:32px;padding:clamp(28px,4.5vw,60px);display:grid;grid-template-columns:auto 1fr;gap:clamp(20px,4vw,56px);align-items:center;min-height:320px}
.stage .halo{position:absolute;inset:0;pointer-events:none;background:radial-gradient(115% 100% at 50% 118%, var(--halo) 0%, transparent 72%);opacity:.45}
.stage.metric-only{grid-template-columns:1fr;min-height:0;justify-items:center;text-align:center;padding-top:clamp(36px,6vw,64px);padding-bottom:clamp(36px,6vw,64px)}
.stage .metric{position:relative;max-width:240px}
.stage.metric-only .metric{max-width:420px}
.stage .metric .big{display:block;font-family:var(--head);font-weight:800;font-size:clamp(44px,6vw,76px);letter-spacing:-.03em;line-height:1;color:var(--accent-text,var(--accent));text-wrap:balance;overflow-wrap:break-word}
.stage .metric .big.word{font-size:clamp(30px,4.2vw,46px)}
.stage .metric .cap{display:block;margin-top:10px;font-weight:600;font-size:15px;color:var(--ink-soft);line-height:1.4}
.stage-imgs{position:relative;display:flex;gap:clamp(12px,2vw,24px);justify-content:center;align-items:flex-end}
.stage-imgs img{border-radius:12px;box-shadow:0 24px 50px -18px rgba(13,12,34,.4);max-height:400px;width:auto;max-width:100%;object-fit:contain}
.stage-imgs.n1 img{max-width:min(100%,560px)}
.stage-imgs.n2 img{max-width:48%}
.stage-imgs.n3 img{max-width:31%}
.stage-imgs.n3 img:nth-child(2){transform:translateY(-12px)}
.stage-card{position:relative;width:min(300px,70vw);margin:0 auto;filter:drop-shadow(0 24px 40px rgba(13,12,34,.28));transform:rotate(-1.5deg)}


.cs{padding:clamp(18px,3vh,30px) 0}
.cs h2{font-weight:800;font-size:clamp(21px,2.4vw,28px);letter-spacing:-.02em;margin-bottom:12px}
.cs p{color:var(--ink-soft);max-width:68ch}
.case-links{display:flex;flex-wrap:wrap;gap:12px;padding:clamp(18px,3vh,28px) 0}

.pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding-top:clamp(30px,5vh,50px);padding-bottom:clamp(40px,7vh,70px)}
.pull-quote{margin:clamp(20px,3.5vh,34px) 0;padding:clamp(22px,3.5vw,34px);background:var(--tint);border-radius:var(--r-lg);font-family:var(--head);font-weight:600;font-size:clamp(17px,1.8vw,21px);line-height:1.5;font-style:italic;color:var(--ink)}
.pull-quote cite{display:block;margin-top:14px;font-family:var(--body);font-weight:600;font-style:normal;font-size:14px;color:var(--ink-soft)}

.pager a{border:1.5px solid var(--line);border-radius:var(--r-md);padding:16px 20px;font-family:var(--head);font-weight:700;font-size:16px;transition:border-color .25s,background .25s,color .25s}
.pager a small{display:block;font-family:var(--body);font-weight:600;font-size:12px;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px}
.pager a.nxt{text-align:right}
.pager a:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.pager a:hover small{color:rgba(255,255,255,.7)}

footer{background:var(--ink);color:#fff;border-radius:clamp(20px,3vw,36px) clamp(20px,3vw,36px) 0 0;margin:0 clamp(12px,2vw,28px);padding:clamp(50px,8vh,90px) 0 30px}
footer h2{font-weight:800;font-size:clamp(28px,4vw,48px);letter-spacing:-.03em;max-width:18ch}
footer .actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
footer .btn.ghost{border-color:rgba(255,255,255,.45);color:#fff}
footer .btn.ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.foot-row{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:clamp(36px,6vh,60px);padding-top:20px;border-top:1px solid rgba(255,255,255,.16);font-size:14px;color:rgba(255,255,255,.62)}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}
@media (max-width:760px){
  nav .links{display:none}
  .nav-toggle{display:flex}
  .stage{grid-template-columns:1fr;min-height:0}
  .stage .metric{max-width:none}
  .stage-imgs{flex-wrap:wrap}
  .stage-imgs.n2 img,.stage-imgs.n3 img{max-width:70%}
  .pager{grid-template-columns:1fr}
  .pager a.nxt{text-align:left}
}

/* design-system extras (Pour Pierre) */
.ds-skins{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px;margin:18px 0}
.ds-skin{border:1.5px solid var(--line);border-radius:var(--r-md);padding:14px;font-size:14px}
.ds-skin.live{border-color:var(--accent)}
.ds-skin .sw{display:flex;align-items:center;justify-content:center;height:52px;border-radius:8px;margin-bottom:10px}
.ds-skin .sw i{width:22px;height:22px;border-radius:50%}
.ds-skin b{display:block;font-family:var(--head);font-size:15px}
.ds-skin small{color:var(--ink-soft);font-size:12.5px}
.ds-tokens{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:12px;margin:18px 0}
.tok span{display:block;height:44px;border-radius:8px;margin-bottom:8px}
.tok b{display:block;font-family:var(--head);font-size:12.5px;font-weight:700}
.tok small{color:var(--ink-soft);font-size:12px}
.ds-type{margin-top:14px}
.cs code{font-family:ui-monospace,monospace;font-size:.9em;background:var(--bg-soft);padding:2px 7px;border-radius:6px}
.ds-rules{list-style:none;margin:14px 0;display:grid;gap:10px}
.ds-rules li{background:var(--bg-soft);border-radius:var(--r-md);padding:14px 18px;font-size:15px;color:var(--ink-soft);font-style:italic;max-width:62ch}
.ds-rules li b{color:var(--ink);font-style:normal}
.ds-rules.principles li{background:color-mix(in srgb,var(--tint) 60%,#fff)}
.ds-tree{background:#141414;color:#e2e1dd;border-radius:var(--r-md);padding:20px 22px;font-family:ui-monospace,monospace;font-size:14px;line-height:1.8;overflow-x:auto;margin:16px 0}
.ds-tree b{color:#fff;font-weight:700}
.ds-tree span{color:#8a8a86}
.shots{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(12px,2vw,20px);margin:20px 0}
.shots.one{grid-template-columns:1fr}
.shots.two{grid-template-columns:1fr 1fr;max-width:460px;margin-inline:auto}
.shots figure{margin:0}
.shots img{border-radius:14px;border:1px solid var(--line);box-shadow:0 14px 30px -16px rgba(13,12,34,.3);width:100%}
.shots.bare img{border:0;border-radius:0;box-shadow:none;background:none}

.shots figcaption{font-size:14px;color:var(--ink-soft);margin-top:8px;text-align:center}
@media (max-width:760px){.shots{grid-template-columns:1fr;max-width:320px;margin-inline:auto}}

/* iPhone journey strip */
.phones{display:flex;gap:clamp(14px,2vw,24px);overflow-x:auto;padding:22px 4px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.iphone{margin:0;flex:0 0 auto;scroll-snap-align:center;text-align:center}
.iphone .screen{width:196px;aspect-ratio:322/698;border-radius:30px;border:7px solid #141414;background:#141414;overflow:hidden;position:relative;box-shadow:0 20px 44px -16px rgba(13,12,34,.4)}
.iphone .screen::before{content:"";position:absolute;top:7px;left:50%;transform:translateX(-50%);width:56px;height:14px;border-radius:99px;background:#141414;z-index:2}
.iphone .screen img{width:100%;height:100%;object-fit:cover}
.iphone figcaption{font-family:var(--head);font-weight:700;font-size:14px;margin-top:10px}

/* DrinkArt animated glasses (keyframes verbatim from the app) */
.da-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;margin:18px 0}
.da-tile{border:1px solid var(--line);border-radius:14px;padding:16px 10px 12px;text-align:center}
.da-tile svg{width:92px;height:122px}
.da-tile span{display:block;font-family:ui-monospace,monospace;font-size:10px;text-transform:uppercase;letter-spacing:.12em;color:var(--ink-soft);margin-top:6px}
.da-legend{font-family:ui-monospace,monospace;font-size:12px;letter-spacing:.04em;color:var(--ink-soft);border-top:1px solid var(--line);padding-top:12px;margin-top:6px;line-height:2}
.pour-fill{animation:pour 1s cubic-bezier(0.16,1,0.3,1) both}
@keyframes pour{from{clip-path:inset(100% 0 0 0)}to{clip-path:inset(0 0 0 0)}}
.da-ice,.da-ice-2,.da-ripple,.da-sway{transform-box:fill-box;transform-origin:center;will-change:transform}
.da-sway{transform-origin:bottom center}
.da-ice{animation:da-bob 3.6s ease-in-out infinite}
.da-ice-2{animation:da-bob-2 4.4s ease-in-out infinite}
.da-ripple{animation:da-ripple 4s ease-in-out infinite}
.da-sway{animation:da-sway 5s ease-in-out infinite}
@keyframes da-bob{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-1.6px) rotate(5deg)}}
@keyframes da-bob-2{0%,100%{transform:translateY(0) rotate(0)}45%{transform:translateY(-1.2px) rotate(-6deg)}}
@keyframes da-ripple{0%,100%{transform:translateX(-2px) scaleX(0.96);opacity:.45}50%{transform:translateX(2px) scaleX(1.04);opacity:.8}}
@keyframes da-sway{0%,100%{transform:rotate(0)}50%{transform:rotate(-5deg)}}


/* editorial two-column case body */
.case-body{display:grid;grid-template-columns:280px minmax(0,1fr);gap:clamp(28px,4.5vw,72px);padding-top:clamp(20px,3.5vh,40px)}
.rail{position:sticky;top:94px;align-self:start;border:1.5px solid var(--line);border-radius:var(--r-lg);padding:22px 22px 24px;background:#fff}
.rail-client{font-family:var(--head);font-weight:700;font-size:14px;color:color-mix(in srgb,var(--accent) 72%,#1c0d05);margin-bottom:14px}
.rail-facts{display:grid;gap:12px;border-top:1px solid var(--line);padding-top:14px}
.rail-facts dt{font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-soft)}
.rail-facts dd{font-size:15px;font-weight:600;margin-top:2px}
.rail-links{display:grid;gap:8px;margin-top:16px;border-top:1px solid var(--line);padding-top:16px}
.rail-links:empty{display:none}
.rail-link{display:block;font-family:var(--head);font-weight:700;font-size:14px;border:1.5px solid var(--ink);border-radius:100vw;padding:9px 16px;text-align:center;transition:background .25s,color .25s;cursor:pointer}
.rail-link:hover{background:var(--ink);color:#fff}
.story{max-width:100%;min-width:0}
.story .cs{padding:clamp(20px,3.5vh,34px) 0}
.story .cs h2{font-size:clamp(22px,2.5vw,30px)}
.story .cs p{max-width:62ch}
.story .cs.highlight{background:var(--tint);border-radius:var(--r-lg);padding:20px;padding:clamp(22px,3vw,34px);margin:14px 0}
.story .cs.highlight h2{color:var(--accent-text,var(--accent))}
.story .cs.highlight p{color:var(--ink)}

/* text + image side-by-side, alternating */
.cs-media{display:grid;grid-template-columns:1fr auto;gap:clamp(24px,4vw,52px);align-items:center}
.cs-media.rev{grid-template-columns:auto 1fr}
.cs-media.rev .cs-figure{order:-1}
.cs-media .cs-text p{max-width:52ch}
.cs-media .cs-figure{margin:0;flex-shrink:0}
.cs-media .cs-figure img{width:210px;max-width:100%;border-radius:14px;box-shadow:0 20px 40px -16px rgba(13,12,34,.35);display:block}
.cs-media .cs-figure figcaption{margin-top:10px;font-size:14px;color:var(--ink-soft);text-align:center;max-width:210px}
@media (max-width:760px){
  .cs-media,.cs-media.rev{grid-template-columns:1fr}
  .cs-media.rev .cs-figure{order:0}
  .cs-media .cs-figure{justify-self:center}
}

/* full-width flow diagrams and hero product shots */
.cs-wide{margin:18px 0}
.cs-wide img{width:100%;border-radius:14px;box-shadow:0 20px 44px -18px rgba(13,12,34,.3);display:block}
.cs-wide figcaption{margin-top:10px;font-size:14px;color:var(--ink-soft)}
.hero-shot{margin:clamp(20px,3.5vh,32px) 0 clamp(8px,2vh,16px)}
.hero-shot img{width:100%;max-width:640px;margin:0 auto;border-radius:16px;box-shadow:0 28px 56px -20px rgba(13,12,34,.4);display:block}
.hero-shot figcaption{margin-top:14px;font-size:14px;color:var(--ink-soft);text-align:center}

/* richer pager */
.pager a{background:#fff}
.pager a:hover{background:var(--accent);border-color:var(--accent)}

@media (max-width:960px){
  .case-body{grid-template-columns:1fr}
  .rail{position:static;order:-1}
  .rail-facts{grid-template-columns:1fr 1fr}
  .rail-links{grid-template-columns:1fr 1fr}
}
@media (max-width:560px){
  .rail-facts,.rail-links{grid-template-columns:1fr}
}