/* ============================================================
   EVERYDAY ROBOTS · études de cas · chassis commun
   Un squelette fixe, une peau par projet :
   chaque page surcharge les variables --case-* dans son <style>.
   ============================================================ */

@font-face{font-family:'Clash';src:url('../assets/fonts/ClashDisplay-500.woff2') format('woff2');font-weight:500;font-display:swap}
@font-face{font-family:'Clash';src:url('../assets/fonts/ClashDisplay-600.woff2') format('woff2');font-weight:600;font-display:swap}
@font-face{font-family:'Clash';src:url('../assets/fonts/ClashDisplay-700.woff2') format('woff2');font-weight:700;font-display:swap}
@font-face{font-family:'Satoshi';src:url('../assets/fonts/Satoshi-400.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'Satoshi';src:url('../assets/fonts/Satoshi-500.woff2') format('woff2');font-weight:500;font-display:swap}
@font-face{font-family:'Satoshi';src:url('../assets/fonts/Satoshi-700.woff2') format('woff2');font-weight:700;font-display:swap}

:root{
  --bg:#07080e;
  --bg2:#0b0e1a;
  --ink:#eef1f7;
  --dim:#9aa2b8;
  --faint:#5c6379;
  --line:rgba(150,170,210,.15);
  --line2:rgba(150,170,210,.34);
  /* peau par projet (surchargée dans chaque page) */
  --case-accent:#5fa8ff;
  --case-second:#43c3ba;
  --case-third:#dfa848;
  --case-danger:#ff8272;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:'Satoshi',system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit}
::selection{background:var(--case-accent);color:#06070c}

/* fond étoilé commun à toute la page */
#stars-bg{position:fixed;inset:0;z-index:-1;width:100%;height:100%}

/* ---------- structure ---------- */
.wrap{max-width:1180px;margin:0 auto;padding:0 clamp(20px,5vw,48px)}
.case-section{padding:clamp(64px,9vw,120px) 0;position:relative}
.case-section + .case-section{border-top:1px solid var(--line)}

/* barre haute minimale */
.topnav{position:fixed;top:0;left:0;right:0;z-index:50;display:flex;justify-content:space-between;align-items:center;
  padding:16px clamp(20px,4vw,40px);background:linear-gradient(180deg,rgba(7,8,14,.85),rgba(7,8,14,0));backdrop-filter:blur(3px)}
.topnav .brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.topnav .brand img{width:34px}
.topnav .brand span{font:600 12.5px 'Clash';letter-spacing:.3em;color:var(--ink)}
.topnav .back{font:500 11px 'Satoshi';letter-spacing:.2em;text-transform:uppercase;color:var(--dim);
  text-decoration:none;border:1px solid var(--line2);border-radius:999px;padding:9px 16px;transition:color .25s,border-color .25s}
.topnav .back:hover{color:var(--ink);border-color:var(--ink)}

/* ---------- typo utilitaires ---------- */
.label{font:500 11.5px/1.5 'Satoshi';letter-spacing:.22em;color:var(--dim);text-transform:uppercase}
.label b{color:var(--ink);font-weight:500}
.microlabel{font:500 10px/1.5 'Satoshi';letter-spacing:.2em;color:var(--faint);text-transform:uppercase}

.sechead{display:flex;align-items:baseline;gap:18px;margin-bottom:clamp(30px,5vw,52px)}
.sechead .idx{font:600 14px 'Clash';color:var(--case-accent);letter-spacing:.12em}
.sechead .t{font:500 12px 'Satoshi';letter-spacing:.28em;color:var(--dim);text-transform:uppercase;white-space:nowrap}
.sechead .rule{flex:1;height:1px;background:var(--line);align-self:center}
.sechead .tick{font:500 10px 'Satoshi';letter-spacing:.16em;color:var(--faint);text-transform:uppercase;text-align:right}
@media (max-width:640px){ .sechead .tick{display:none} }

.statement{font:600 clamp(30px,4.6vw,54px)/1.14 'Clash';letter-spacing:.002em;max-width:20ch}
.statement .soft{color:var(--faint)}
.statement .acc{color:var(--case-accent)}
.bodytext{font:400 clamp(15.5px,1.35vw,17px)/1.78 'Satoshi';color:var(--dim)}
.bodytext strong{color:var(--ink);font-weight:500}
.lede{margin-top:clamp(20px,3vw,30px);max-width:56ch}

.chip{display:inline-flex;align-items:center;gap:9px;border:1px solid var(--line2);border-radius:999px;
  padding:9px 16px;font:500 10.5px/1 'Satoshi';letter-spacing:.18em;color:var(--ink);text-transform:uppercase;white-space:nowrap}
.chip .dot{width:5px;height:5px;border-radius:50%;background:var(--case-accent);flex:none}
.chip.c2 .dot{background:var(--case-second)}
.chip.c3 .dot{background:var(--case-third)}
.chiprow{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- cadres image ---------- */
.frame{position:relative;border:1px solid var(--line2);border-radius:12px;overflow:hidden;background:var(--bg2)}
.frame img{width:100%;height:100%;object-fit:cover}
.under{display:flex;justify-content:space-between;gap:14px;margin-top:12px;align-items:baseline}
.under .microlabel{text-align:right}

.hud-corners{position:absolute;inset:12px;pointer-events:none;z-index:5}
.hud-corners::before,.hud-corners::after,.hud-corners .c3,.hud-corners .c4{content:'';position:absolute;width:22px;height:22px;border:1.5px solid rgba(220,230,250,.8)}
.hud-corners::before{top:0;left:0;border-right:none;border-bottom:none}
.hud-corners::after{top:0;right:0;border-left:none;border-bottom:none}
.hud-corners .c3{bottom:0;left:0;border-right:none;border-top:none}
.hud-corners .c4{bottom:0;right:0;border-left:none;border-top:none}

/* ---------- scènes animées (stages) ---------- */
.stage{position:relative;border:1px solid var(--line2);border-radius:14px;overflow:hidden;background:var(--bg2);
  font-size:clamp(8.5px,1vw,13px)}
.stage > img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.stage .shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,6,10,.42),transparent 26%,transparent 70%,rgba(5,6,10,.5))}
.stage .st-label{position:absolute;top:4.2%;left:4%;z-index:6;text-shadow:0 1px 8px rgba(0,0,0,.6)}
.stage .st-label-r{position:absolute;top:4.2%;right:4%;z-index:6;text-shadow:0 1px 8px rgba(0,0,0,.6)}
.stage .label{font-size:1em}
.stage .plate{background:rgba(5,6,10,.66);border:1px solid var(--line2);border-radius:.7em;padding:.9em 1.2em}

/* ---------- cartes ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,2vw,24px)}
.card{border:1px solid var(--line2);border-radius:14px;padding:clamp(20px,2.6vw,30px) clamp(20px,2.6vw,32px);background:rgba(11,14,26,.55)}
.card .oi{font:600 13px 'Clash';color:var(--case-accent);letter-spacing:.1em}
.card h3{font:600 clamp(15px,1.5vw,18.5px) 'Clash';letter-spacing:.12em;margin-top:12px;text-transform:uppercase}
.card p{margin-top:11px;font:400 clamp(13.5px,1.15vw,14.5px)/1.65 'Satoshi';color:var(--dim)}
@media (max-width:860px){ .cards{grid-template-columns:1fr} }

/* stats en ligne */
.datastrip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:clamp(22px,3.4vw,36px) 0}
.datastrip .n{font:600 clamp(34px,4.4vw,52px)/1 'Clash'}
.datastrip .l{margin-top:9px}
@media (max-width:860px){ .datastrip{grid-template-columns:repeat(2,1fr);row-gap:26px} }

/* lignes clé/valeur */
.specs{border-top:1px solid var(--line);padding-top:14px;display:flex;flex-direction:column;gap:8px}
.spec{display:flex;justify-content:space-between;gap:16px;align-items:baseline}
.spec .k{font:500 10px 'Satoshi';letter-spacing:.18em;color:var(--faint);text-transform:uppercase;white-space:nowrap}
.spec .v{font:500 13.5px 'Satoshi';color:var(--ink);text-align:right}

/* ---------- révélations au scroll ---------- */
[data-reveal]{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
[data-reveal].is-in{opacity:1;transform:none}
[data-reveal="2"]{transition-delay:.12s}
[data-reveal="3"]{transition-delay:.24s}

/* ---------- carrousel ---------- */
.caro{position:relative}
.caro .stage{aspect-ratio:1400/740}
.caro .slide{position:absolute;inset:0;opacity:0;transition:opacity .001s}
.caro .slide.on{opacity:1}
.caro .slide img{width:100%;height:100%;object-fit:cover}
.caro .blink{position:absolute;inset:0;background:var(--bg);opacity:0;z-index:3;pointer-events:none}
.caro .cap{position:absolute;left:4%;bottom:6.5%;z-index:6;max-width:70%}
.caro .count{position:absolute;top:4.2%;right:4%;z-index:6}
.caro .ticks{position:absolute;right:4%;bottom:7.5%;z-index:6;display:flex;gap:7px}
.caro .ticks i{width:22px;height:3px;border-radius:2px;background:rgba(160,180,215,.3);transition:background .3s}
.caro .ticks i.on{background:var(--case-accent)}
.caro .arr{position:absolute;top:50%;transform:translateY(-50%);z-index:7;width:44px;height:44px;border-radius:50%;
  border:1px solid var(--line2);background:rgba(5,6,10,.55);color:var(--ink);font-size:17px;cursor:pointer;transition:border-color .25s}
.caro .arr:hover{border-color:var(--ink)}
.caro .arr.prev{left:14px}.caro .arr.next{right:14px}

/* ---------- palette ---------- */
.pal{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.pal .sw{border:1px solid var(--line2);border-radius:10px;overflow:hidden}
.pal .sw .c{height:clamp(58px,7vw,96px)}
.pal .sw .m{padding:10px 11px;background:rgba(11,14,26,.6)}
.pal .sw .hx{font:600 11.5px 'Clash';letter-spacing:.06em}
.pal .sw .nm{margin-top:4px;font:500 8.5px 'Satoshi';letter-spacing:.14em;color:var(--dim);text-transform:uppercase}
@media (max-width:860px){ .pal{grid-template-columns:repeat(3,1fr)} }

/* ---------- pied de page ---------- */
.case-foot{text-align:center;padding:clamp(70px,10vw,130px) 0 clamp(46px,6vw,70px)}
.case-foot .big{font:700 clamp(54px,9vw,118px)/1 'Clash';
  background:linear-gradient(180deg,#fff 30%,#aebdde);-webkit-background-clip:text;background-clip:text;color:transparent}
.case-foot .sub{margin-top:18px}
.case-foot .links{margin-top:34px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.case-foot .links a{text-decoration:none;transition:border-color .25s}
.case-foot .links a:hover{border-color:var(--ink)}
.case-foot .sig{margin-top:54px;display:flex;flex-direction:column;align-items:center;gap:10px}
.case-foot .sig img{width:44px;opacity:.92}

/* ---------- accessibilité mouvement ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  [data-reveal]{opacity:1;transform:none;transition:none}
}