/* Chadrac Studio · Études de cas + finition portfolio (novembre 2026).
   Chargé sur la page d'accueil (après site-finish.css) et sur chaque page cas-*.html.
   DA "Acid Noir" : noir chaud, lime #CCFF33, os #F3F0E8, Fraunces + Space Grotesk + Manrope. */

:root{--cs-ink:#0c0c0b;--cs-ink-2:#141512;--cs-ink-3:#1c1e19;--cs-lime:#ccff33;--cs-lime-2:#e4ff8a;--cs-bone:#f3f0e8;--cs-mute:#b1b2a8;--cs-mute-2:#8d9083;--cs-line:#ffffff1f;--cs-line-2:#ffffff33;--cs-page:min(1240px,calc(100% - 96px));--cs-ease:cubic-bezier(.2,.7,.2,1)}

/* ============ 1. Page d'accueil : section Études de cas ============ */
#etudes-de-cas{background:var(--cs-ink);position:relative;overflow:hidden}
#etudes-de-cas .cases-head{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:end;margin-bottom:44px}
#etudes-de-cas .cases-head .section-title{max-width:none;margin-bottom:0}
#etudes-de-cas .cases-head .section-title em{font-style:italic;color:var(--cs-lime)}
#etudes-de-cas .cases-head p{color:#c4c6ba;font-size:15px;line-height:1.75;max-width:46ch;margin:0 0 6px}
.cases-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:18px}
.case-card{position:relative;display:flex;flex-direction:column;text-decoration:none;color:var(--cs-bone);background:var(--cs-ink-2);border:1px solid var(--cs-line);border-radius:14px;overflow:hidden;transition:border-color .3s var(--cs-ease),transform .4s var(--cs-ease)}
.case-card:hover{border-color:#ccff3366;transform:translateY(-3px)}
.case-card:focus-visible{outline:3px solid var(--cs-lime);outline-offset:4px}
.case-card .case-media{position:relative;overflow:hidden;background:#080908}
.case-card .case-media img{width:100%;height:100%;object-fit:cover;transition:transform 1.1s var(--cs-ease)}
.case-card:hover .case-media img{transform:scale(1.035)}
.case-card .case-body{display:flex;flex-direction:column;gap:10px;padding:22px 24px 24px;flex:1}
.case-kicker{display:flex;align-items:center;gap:10px;font:500 11px/1.4 var(--font-display,'Space Grotesk',sans-serif);letter-spacing:.14em;text-transform:uppercase;color:var(--cs-mute)}
.case-kicker b{color:var(--cs-lime);font-weight:500;font-variant-numeric:tabular-nums}
.case-card h3{font:470 clamp(22px,2.1vw,30px)/1.12 var(--font-head,'Fraunces',serif);letter-spacing:-.025em;margin:0}
.case-card p{color:#bfc1b5;font-size:14px;line-height:1.65;margin:0}
.case-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:8px}
.case-tags span{font:500 11px/1 var(--font-display,'Space Grotesk',sans-serif);padding:7px 9px;border:1px solid var(--cs-line);border-radius:5px;color:#d6d8cc}
.case-go{position:absolute;top:16px;right:16px;z-index:2;width:42px;height:42px;display:grid;place-items:center;border-radius:50%;background:#0c0c0bcc;border:1px solid var(--cs-line-2);color:var(--cs-bone);backdrop-filter:blur(8px);transition:background .25s,color .25s,border-color .25s}
.case-card:hover .case-go{background:var(--cs-lime);color:var(--cs-ink);border-color:var(--cs-lime)}
.case-go svg{width:16px;height:16px}
/* Rythme asymétrique : un cas vedette large, une colonne haute, deux cartes décalées */
.case-card.is-feature{grid-column:1 / span 8;grid-row:span 2}
.case-card.is-feature .case-media{aspect-ratio:16/9.2}
.case-card.is-feature .case-body{padding:26px 30px 30px}
.case-card.is-feature h3{font-size:clamp(28px,3vw,42px)}
.case-card.is-tall{grid-column:9 / span 4;grid-row:span 2}
.case-card.is-tall .case-media{aspect-ratio:4/4.3}
.case-card.is-wide{grid-column:span 6}
.case-card.is-wide{flex-direction:row}
.case-card.is-wide .case-media{flex:0 0 42%;aspect-ratio:auto;min-height:260px}
.case-card.is-wide:nth-of-type(4){margin-top:42px}
.case-reel-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;height:100%}
.case-reel-strip img{aspect-ratio:9/16;height:100%}
.cases-foot{display:flex;justify-content:space-between;align-items:center;gap:24px;margin-top:34px;padding-top:22px;border-top:1px solid var(--cs-line);color:var(--cs-mute);font-size:13px}
.cases-foot a{color:var(--cs-bone);font:600 13px/1 var(--font-display,'Space Grotesk',sans-serif);text-decoration:none;border-bottom:1px solid var(--cs-lime);padding-bottom:6px}
.cases-foot a:hover{color:var(--cs-lime)}
@media(max-width:1020px){
  #etudes-de-cas .cases-head{grid-template-columns:1fr;gap:16px;margin-bottom:28px}
  .case-card.is-feature,.case-card.is-tall,.case-card.is-wide{grid-column:1 / -1;grid-row:auto}
  .case-card.is-tall{flex-direction:row}
  .case-card.is-tall .case-media{flex:0 0 42%;aspect-ratio:auto}
  .case-card.is-wide:nth-of-type(4){margin-top:0}
}
@media(max-width:640px){
  .cases-grid{gap:14px}
  .case-card.is-tall,.case-card.is-wide{flex-direction:column}
  .case-card.is-tall .case-media,.case-card.is-wide .case-media{flex:none;aspect-ratio:16/10;min-height:0}
  .case-card .case-body,.case-card.is-feature .case-body{padding:18px 18px 20px}
  .case-card.is-feature .case-media{aspect-ratio:16/10}
  .case-reel-strip img{aspect-ratio:auto;width:100%;height:100%;object-fit:cover;min-width:0}
  .case-reel-strip{grid-template-rows:100%}
  .cases-foot{flex-direction:column;align-items:flex-start}
}

/* ============ 2. Page d'accueil : finition du portfolio ============ */
#portfolio .section-title em{font-style:italic;color:var(--cs-lime)}
#portfolio .portfolio-stage::before{content:'';position:absolute;left:0;right:0;top:22px;height:1px;background:linear-gradient(90deg,var(--cs-line-2),transparent 80%)}
#portfolio .portfolio-count{font:500 11px/1.4 var(--font-display,'Space Grotesk',sans-serif);letter-spacing:.14em;text-transform:uppercase;color:var(--cs-mute)}
#reel-scroll .portfolio-embed-card{border-radius:16px;background:linear-gradient(180deg,#171915,#10110e);border-color:#ffffff1a;box-shadow:0 1px 0 #ffffff10 inset,0 24px 50px -30px #000;transition:border-color .3s var(--cs-ease)}
#reel-scroll .portfolio-embed-card:hover{border-color:#ccff3359}
#reel-scroll .portfolio-native-card .ig-fallback{justify-content:flex-start;color:#e3e4da;font-weight:600;letter-spacing:-.01em}
#reel-scroll .portfolio-native-card .ig-fallback svg{color:var(--cs-lime);opacity:.85}
#reel-scroll .reel-number{margin-left:auto;font:500 10px/1 var(--font-display,'Space Grotesk',sans-serif);letter-spacing:.12em;color:var(--cs-mute-2);font-variant-numeric:tabular-nums}
#reel-scroll .portfolio-embed-card:hover .reel-number{color:var(--cs-lime)}
#reel-scroll .portfolio-video-surface{border-radius:11px;box-shadow:0 0 0 1px #ffffff0d}
#reel-scroll .portfolio-video-controls button{border-radius:999px;background:#0c0c0b;border-color:#ffffff1f}
#reel-scroll .portfolio-video-controls .video-play{background:var(--cs-lime);color:var(--cs-ink);border-color:var(--cs-lime);font-weight:600}
#reel-scroll .portfolio-video-controls .video-play:hover{background:var(--cs-lime-2);color:var(--cs-ink)}
#portfolio .portfolio-note{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;color:var(--cs-mute)}
#portfolio .portfolio-note a{color:var(--cs-bone);text-decoration:none;font:600 13px/1 var(--font-display,'Space Grotesk',sans-serif);border-bottom:1px solid var(--cs-lime);padding-bottom:5px}
#portfolio .portfolio-note a:hover{color:var(--cs-lime)}

/* ============ 3. Pages cas-*.html ============ */
body.cs-page{margin:0;background:var(--cs-ink);color:var(--cs-bone);font-family:var(--font-body,'Manrope',sans-serif);line-height:1.65;font-size:16px;overflow-x:hidden;-webkit-font-smoothing:antialiased}
.cs-page *,.cs-page *::before,.cs-page *::after{box-sizing:border-box}
.cs-page img{display:block;max-width:100%;height:auto}
.cs-page a{color:inherit}
.cs-page ::selection{background:var(--cs-lime);color:var(--cs-ink)}
.cs-page :focus-visible{outline:3px solid var(--cs-lime);outline-offset:4px}
.cs-skip{position:fixed;top:12px;left:16px;z-index:1000;background:var(--cs-lime);color:var(--cs-ink);padding:12px 18px;transform:translateY(-180%);font-weight:700;text-decoration:none}
.cs-skip:focus{transform:none}
/* Navigation */
.cs-nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px max(32px,calc((100vw - 1240px)/2));background:#0c0c0bf2;border-bottom:1px solid var(--cs-line);backdrop-filter:blur(16px)}
.cs-logo{display:flex;align-items:center;gap:12px;text-decoration:none;font:600 21px/1 var(--font-display,'Space Grotesk',sans-serif);letter-spacing:-.8px;white-space:nowrap}
.cs-logo svg{width:35px;height:28px;color:var(--cs-lime)}
.cs-logo span span{color:var(--cs-lime)}
.cs-links{display:flex;align-items:center;gap:26px;list-style:none;margin:0;padding:0}
.cs-links a{display:inline-flex;align-items:center;min-height:44px;text-decoration:none;font:600 13px/1 var(--font-body,'Manrope',sans-serif);color:#c6c8bc}
.cs-links a:hover,.cs-links a[aria-current]{color:var(--cs-lime)}
.cs-links .cs-nav-cta{background:var(--cs-lime);color:var(--cs-ink);padding:0 18px;border-radius:4px}
.cs-links .cs-nav-cta:hover{background:var(--cs-lime-2);color:var(--cs-ink)}
.cs-menu{display:none;width:46px;height:46px;border:1px solid var(--cs-line);border-radius:4px;background:transparent;color:var(--cs-bone);padding:12px;cursor:pointer}
.cs-menu span{display:block;height:1.5px;background:currentColor;margin:4px 0}
/* Ouverture */
.cs-wrap{width:var(--cs-page);margin:0 auto}
.cs-hero{padding:56px 0 0}
.cs-crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font:500 11px/1.4 var(--font-display,'Space Grotesk',sans-serif);letter-spacing:.14em;text-transform:uppercase;color:var(--cs-mute);margin-bottom:34px}
.cs-crumbs a{text-decoration:none;color:var(--cs-mute)}
.cs-crumbs a:hover{color:var(--cs-lime)}
.cs-crumbs b{color:var(--cs-lime);font-weight:500}
.cs-hero-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,.75fr);gap:72px;align-items:end}
.cs-hero h1{font:450 clamp(40px,5.6vw,80px)/1.02 var(--font-head,'Fraunces',serif);letter-spacing:-.04em;margin:0 0 26px}
.cs-hero h1 em{font-style:italic;color:var(--cs-lime)}
.cs-lede{font-size:18px;line-height:1.7;color:#d4d6ca;max-width:58ch;margin:0}
.cs-facts{margin:0;border-top:1px solid var(--cs-line-2)}
.cs-facts div{display:grid;grid-template-columns:110px 1fr;gap:16px;padding:13px 0;border-bottom:1px solid var(--cs-line)}
.cs-facts dt{font:500 11px/1.6 var(--font-display,'Space Grotesk',sans-serif);letter-spacing:.12em;text-transform:uppercase;color:var(--cs-mute-2)}
.cs-facts dd{margin:0;font-size:14px;line-height:1.55;color:var(--cs-bone)}
.cs-facts dd a{text-decoration-color:var(--cs-lime)}
.cs-cover{margin:56px 0 0;position:relative}
.cs-cover img{width:100%;border-radius:16px;border:1px solid var(--cs-line)}
.cs-cover figcaption,.cs-figure figcaption{margin-top:12px;font-size:12px;color:var(--cs-mute-2);line-height:1.5}
.cs-cover.is-offset{margin-right:calc(-1 * max(0px,(100vw - 1240px)/2 - 24px))}
/* Chapitres : colonne d'étiquette collante + texte */
.cs-chapter{display:grid;grid-template-columns:minmax(0,.62fr) minmax(0,1.38fr);gap:72px;padding:92px 0;border-top:1px solid var(--cs-line)}
.cs-chapter:first-of-type{border-top:0}
.cs-label{position:sticky;top:110px;align-self:start}
.cs-label .n{display:block;font:450 64px/1 var(--font-head,'Fraunces',serif);color:var(--cs-lime);letter-spacing:-.04em;margin-bottom:12px;font-variant-numeric:tabular-nums}
.cs-label h2{font:500 12px/1.5 var(--font-display,'Space Grotesk',sans-serif);letter-spacing:.16em;text-transform:uppercase;color:var(--cs-mute);margin:0}
.cs-text h3{font:460 clamp(26px,2.8vw,38px)/1.15 var(--font-head,'Fraunces',serif);letter-spacing:-.03em;margin:0 0 22px;max-width:24ch}
.cs-text h3 em{font-style:italic;color:var(--cs-lime)}
.cs-text p{color:#cfd1c5;margin:0 0 18px;max-width:64ch}
.cs-text strong{color:var(--cs-bone)}
.cs-steps{list-style:none;margin:30px 0 0;padding:0;counter-reset:cs}
.cs-steps li{counter-increment:cs;display:grid;grid-template-columns:52px 1fr;gap:18px;padding:22px 0;border-top:1px solid var(--cs-line)}
.cs-steps li::before{content:counter(cs,decimal-leading-zero);font:500 12px/1.9 var(--font-display,'Space Grotesk',sans-serif);letter-spacing:.1em;color:var(--cs-lime)}
.cs-steps h4{font:600 17px/1.4 var(--font-display,'Space Grotesk',sans-serif);margin:0 0 6px;letter-spacing:-.01em}
.cs-steps p{margin:0;color:#c3c5b9;font-size:15px}
/* Résultats */
.cs-metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin:30px 0 26px}
.cs-metric{padding:22px 20px 20px;border:1px solid var(--cs-line);border-radius:12px;background:var(--cs-ink-2)}
.cs-metric b{display:block;font:450 clamp(34px,3.6vw,50px)/1 var(--font-head,'Fraunces',serif);letter-spacing:-.04em;color:var(--cs-lime);margin-bottom:12px;font-variant-numeric:tabular-nums}
.cs-metric span{display:block;font-size:13px;line-height:1.5;color:#c3c5b9}
.cs-metric small{display:block;margin-top:8px;font-size:11px;color:var(--cs-mute-2)}
.cs-todo{color:#ffd166!important;background:#ffd16614;border:1px dashed #ffd16680;border-radius:6px;padding:1px 6px;font-size:.92em;font-style:normal;font-weight:600}
.cs-metric.is-todo{border-style:dashed;border-color:#ffd16666;background:transparent}
.cs-metric.is-todo b{color:#ffd166;font-size:20px;font-family:var(--font-display,'Space Grotesk',sans-serif);letter-spacing:0;line-height:1.3}
.cs-quote{margin:34px 0 0;padding:26px 28px;border-left:2px solid var(--cs-lime);background:linear-gradient(90deg,#ccff330d,transparent)}
.cs-quote p{font:italic 400 clamp(19px,1.8vw,24px)/1.45 var(--font-head,'Fraunces',serif);color:var(--cs-bone);margin:0 0 12px}
.cs-quote cite{font:500 12px/1.4 var(--font-display,'Space Grotesk',sans-serif);letter-spacing:.1em;text-transform:uppercase;color:var(--cs-mute);font-style:normal}
/* Galeries */
.cs-gallery{padding:20px 0 96px}
.cs-gallery-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:26px;padding-top:40px;border-top:1px solid var(--cs-line)}
.cs-gallery-head h2{font:460 clamp(28px,3vw,42px)/1.1 var(--font-head,'Fraunces',serif);letter-spacing:-.03em;margin:0}
.cs-gallery-head p{color:var(--cs-mute);font-size:14px;margin:0;max-width:44ch}
.cs-figure{margin:0}
.cs-figure img{width:100%;border-radius:14px;border:1px solid var(--cs-line);background:#080908}
.cs-split{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:18px;align-items:start}
.cs-split .cs-figure:nth-child(2){margin-top:70px}
.cs-reels{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px}
.cs-reels.is-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.cs-reels .cs-figure img{aspect-ratio:9/16;object-fit:cover}
.cs-reels .cs-figure:nth-child(even){margin-top:46px}
.cs-video{position:relative;border-radius:14px;overflow:hidden;border:1px solid var(--cs-line);background:#080908}
.cs-video video{display:block;width:100%;aspect-ratio:9/16;object-fit:cover}
.cs-ba{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,.62fr);gap:18px;align-items:center}
.cs-ba .cs-tag{display:inline-flex;margin-bottom:10px;font:500 11px/1 var(--font-display,'Space Grotesk',sans-serif);letter-spacing:.14em;text-transform:uppercase;color:var(--cs-mute)}
.cs-ba .cs-tag.is-after{color:var(--cs-lime)}
.cs-ba .cs-arrow{display:none}
.cs-stack{display:grid;gap:18px}
.cs-gap{height:18px}
/* CTA */
.cs-cta{margin:0 0 0;background:var(--cs-lime);color:var(--cs-ink)}
.cs-cta-in{width:var(--cs-page);margin:0 auto;display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);gap:48px;align-items:end;padding:76px 0}
.cs-cta .eyebrow{font:500 11px/1.4 var(--font-display,'Space Grotesk',sans-serif);letter-spacing:.16em;text-transform:uppercase;color:#3b4b0e;margin:0 0 14px}
.cs-cta h2{font:460 clamp(34px,4.4vw,60px)/1.04 var(--font-head,'Fraunces',serif);letter-spacing:-.04em;margin:0}
.cs-cta h2 em{font-style:italic}
.cs-cta p{margin:0 0 22px;color:#27310a;font-size:15px;line-height:1.7}
.cs-wa{display:inline-flex;align-items:center;justify-content:space-between;gap:28px;min-height:58px;padding:16px 22px;background:var(--cs-ink);color:var(--cs-bone)!important;text-decoration:none;border-radius:8px;font:600 15px/1.2 var(--font-display,'Space Grotesk',sans-serif);transition:background .25s,transform .25s var(--cs-ease)}
.cs-wa:hover{background:#22241f;transform:translateY(-2px)}
.cs-wa svg{width:20px;height:20px;color:var(--cs-lime)}
.cs-wa-note{display:block;margin-top:12px;font-size:12px;color:#3b4b0e}
/* Cas suivant + pied */
.cs-next{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border-bottom:1px solid var(--cs-line)}
.cs-next a{display:flex;flex-direction:column;gap:8px;padding:30px max(24px,calc((100vw - 1240px)/6));text-decoration:none;border-right:1px solid var(--cs-line);transition:background .25s}
.cs-next a:last-child{border-right:0}
.cs-next a:hover{background:var(--cs-ink-2)}
.cs-next small{font:500 11px/1.4 var(--font-display,'Space Grotesk',sans-serif);letter-spacing:.14em;text-transform:uppercase;color:var(--cs-mute-2)}
.cs-next strong{font:460 22px/1.2 var(--font-head,'Fraunces',serif);letter-spacing:-.02em}
.cs-next a:hover strong{color:var(--cs-lime)}
.cs-foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;padding:30px max(24px,calc((100vw - 1240px)/2));font-size:12px;color:var(--cs-mute-2)}
.cs-foot a{text-decoration:none}
.cs-foot a:hover{color:var(--cs-lime)}
/* Apparition douce : contenu visible sans JS */
.cs-js .cs-rise{opacity:0;transform:translateY(18px);transition:opacity .8s var(--cs-ease),transform .8s var(--cs-ease)}
.cs-js .cs-rise.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.cs-js .cs-rise{opacity:1;transform:none;transition:none}.case-card,.case-card .case-media img{transition:none}}

@media(max-width:1020px){
  :root{--cs-page:calc(100% - 64px)}
  .cs-hero-grid{grid-template-columns:1fr;gap:34px}
  .cs-chapter{grid-template-columns:1fr;gap:20px;padding:64px 0}
  .cs-label{position:static;display:flex;align-items:baseline;gap:14px}
  .cs-label .n{font-size:40px;margin:0}
  .cs-reels{grid-template-columns:repeat(3,minmax(0,1fr))}
  .cs-reels.is-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cs-cta-in{grid-template-columns:1fr;gap:24px;padding:56px 0}
  .cs-cover.is-offset{margin-right:0}
}
@media(max-width:850px){
  .cs-nav{padding:12px 20px}
  .cs-menu{display:block}
  .cs-links{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;padding:8px 20px 20px;background:#0c0c0bfa;border-bottom:1px solid var(--cs-line)}
  .cs-links.is-open{display:flex}
  .cs-links a{min-height:52px;border-bottom:1px solid var(--cs-line)}
  .cs-links .cs-nav-cta{justify-content:center;margin-top:12px;border:0}
}
@media(max-width:640px){
  :root{--cs-page:calc(100% - 32px)}
  .cs-hero{padding-top:34px}
  .cs-crumbs{margin-bottom:22px;font-size:10px}
  .cs-hero h1{font-size:40px;margin-bottom:18px}
  .cs-lede{font-size:16px}
  .cs-facts div{grid-template-columns:96px 1fr;gap:12px}
  .cs-cover{margin-top:34px}
  .cs-cover img,.cs-figure img{border-radius:10px}
  .cs-chapter{padding:48px 0}
  .cs-metrics{grid-template-columns:1fr 1fr;gap:10px}
  .cs-metric{padding:16px 14px}
  .cs-steps li{grid-template-columns:36px 1fr;gap:10px}
  .cs-split{grid-template-columns:1fr}
  .cs-split .cs-figure:nth-child(2){margin-top:0}
  .cs-reels,.cs-reels.is-4{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
  .cs-reels .cs-figure:nth-child(even){margin-top:28px}
  .cs-ba{grid-template-columns:1fr}
  .cs-ba .cs-figure:nth-child(2){width:min(100%,300px)}
  .cs-gallery{padding-bottom:64px}
  .cs-gallery-head{flex-direction:column;align-items:flex-start;gap:8px}
  .cs-next{grid-template-columns:1fr}
  .cs-next a{border-right:0;border-bottom:1px solid var(--cs-line);padding:22px 16px}
  .cs-foot{padding:24px 16px}
  .cs-wa{width:100%}
}
.cs-todo,.cs-metric.is-todo,.cs-quote:has(.cs-todo){display:none!important}