/* ===== BETTHER — feuille de style commune (maquette multi-pages) ===== */
@font-face{font-family:'Fraunces';font-style:normal;font-weight:300 600;font-display:swap;src:url(Fraunces-300_600-latin.woff2) format('woff2')}
@font-face{font-family:'Geist';font-style:normal;font-weight:300;font-display:swap;src:url(Geist-300-latin.woff2) format('woff2')}
@font-face{font-family:'Geist';font-style:normal;font-weight:400;font-display:swap;src:url(Geist-400-latin.woff2) format('woff2')}
@font-face{font-family:'Geist';font-style:normal;font-weight:500;font-display:swap;src:url(Geist-500-latin.woff2) format('woff2')}
@font-face{font-family:'Geist';font-style:normal;font-weight:600;font-display:swap;src:url(Geist-600-latin.woff2) format('woff2')}
@font-face{font-family:'Geist Mono';font-style:normal;font-weight:400;font-display:swap;src:url(GeistMono-400-latin.woff2) format('woff2')}
@font-face{font-family:'Geist Mono';font-style:normal;font-weight:500;font-display:swap;src:url(GeistMono-500-latin.woff2) format('woff2')}

:root{
  --ground:#101A33;--ground-2:#16203C;--surface:#1C2745;--surface-2:#212D4D;
  --ink:#F1EFEA;--ink-soft:#B8BFCF;--ink-faint:#8892A6;
  --line:#2B3758;--line-strong:#36436A;
  --accent:#FF6A33;--accent-ink:#FF8A5C;--accent-2:#18A4D6;--accent-2-ink:#6ECCEE;
  --therm:linear-gradient(90deg,#1E63C8 0%,#12A9C8 22%,#12B08E 40%,#F5C518 62%,#FF7A1F 82%,#E11D2E 100%);
  --font-body:system-ui,-apple-system,'SF Pro Text','Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  --font-display:ui-serif,'New York',Georgia,'Times New Roman',serif;
  --font-mono:ui-monospace,'SF Mono',SFMono-Regular,Menlo,Consolas,'Liberation Mono',monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--font-body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(18px,4vw,40px)}
.eyebrow{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent-ink);display:inline-flex;align-items:center;gap:12px}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--therm);border-radius:2px}
h1,h2,h3{font-family:var(--font-display);font-weight:400;letter-spacing:-.015em;line-height:1.05;margin:0}
h1{font-size:clamp(32px,5vw,58px)}
h2{font-size:clamp(26px,3.6vw,42px)}
h3{font-size:22px}
p{margin:0}
.accent{color:var(--accent-ink)}

/* thermal blueprint bg */
.thermbg{background-color:var(--ground);background-image:
  radial-gradient(32% 40% at 12% 8%,rgba(30,99,200,.18),transparent 70%),
  radial-gradient(30% 38% at 90% 12%,rgba(255,122,31,.16),transparent 72%),
  radial-gradient(40% 46% at 80% 96%,rgba(255,122,31,.12),transparent 74%)}
.gridbg{position:relative}
.gridbg::before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:58px 58px;opacity:.4;-webkit-mask-image:radial-gradient(130% 90% at 60% 0%,#000 24%,transparent 72%);mask-image:radial-gradient(130% 90% at 60% 0%,#000 24%,transparent 72%)}
.gridbg>*{position:relative;z-index:1}

/* ===== NAV ===== */
.nav{position:sticky;top:0;z-index:50;background:rgba(16,26,51,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:24px;height:72px}
.nav-logo img{height:48px;width:auto}
.nav-links{display:flex;gap:26px;margin-left:auto;flex-wrap:wrap}
.nav-links a{font-size:14.5px;color:var(--ink-soft);text-decoration:none;transition:color .2s ease;white-space:nowrap}
.nav-links a:hover,.nav-links a.on{color:var(--ink)}
.nav-links a.on{color:var(--accent-ink)}
/* --- Menu deroulant "Nos prestations" --- */
.nav-drop{position:relative;display:inline-flex;align-items:center}
.nav-drop-t{appearance:none;-webkit-appearance:none;background:none;border:0;padding:0;margin:0;cursor:pointer;font-family:inherit;font-size:14.5px;color:var(--ink-soft);display:inline-flex;align-items:center;gap:6px;white-space:nowrap;transition:color .2s ease}
.nav-drop-t svg{width:11px;height:11px;opacity:.75;transition:transform .25s ease}
.nav-drop:hover .nav-drop-t,.nav-drop.is-open .nav-drop-t{color:var(--ink)}
.nav-drop-t.on{color:var(--accent-ink)}
.nav-drop:hover .nav-drop-t svg,.nav-drop.is-open .nav-drop-t svg{transform:rotate(180deg)}
.nav-drop-m{position:absolute;top:100%;left:50%;margin-top:12px;transform:translateX(-50%) translateY(-6px);min-width:206px;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:7px;display:flex;flex-direction:column;gap:2px;opacity:0;visibility:hidden;transition:opacity .2s ease,transform .2s ease,visibility .2s ease;box-shadow:0 22px 46px -24px rgba(0,0,0,.75);z-index:70}
.nav-drop-m::before{content:"";position:absolute;left:0;right:0;top:-13px;height:13px}
.nav-drop:hover .nav-drop-m,.nav-drop.is-open .nav-drop-m{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.nav-drop-m a{padding:9px 12px;border-radius:9px;font-size:14px;color:var(--ink-soft);text-decoration:none;white-space:nowrap;transition:background .18s ease,color .18s ease}
.nav-drop-m a:hover{background:rgba(255,255,255,.05);color:var(--ink)}
.nav-drop-m a.on{color:var(--accent-ink)}
/* Sur mobile le menu deroulant est CONSERVE, comme sur ordinateur. L'ancienne
   regle l'aplatissait en 3 liens supplementaires : la nav passait a 6 entrees,
   debordait du bandeau (.nav-in avait une hauteur figee de 72px) et les liens
   se superposaient au contenu de la page. */
@media(max-width:720px){
  .nav-in{flex-wrap:wrap;height:auto;gap:12px;padding-top:10px}
  .nav-in>.nav-logo{order:1}
  /* logo 30px -> 142px de large (ratio 4,72) et bouton compact sans la fleche
     -> 142 + 148 + 12 = 302px, pour 335px dispo a 375px d'ecran : une seule
     rangee pour le logo et le bouton, les liens en dessous. */
  .nav-in>.btn{order:2;margin-left:auto;white-space:nowrap;font-size:13px;padding:10px 18px}
  .nav-in>.btn svg{display:none}
  .nav-logo img{height:30px}
  /* gap 16px : les 4 entrees mesurent 308px, pour 335px dispo a 375px d'ecran
     et 320px a 360px. En dessous, flex-wrap les fait passer a la ligne
     proprement plutot que de les rogner. */
  .nav-links{order:3;flex-basis:100%;width:100%;margin-left:0;margin-top:2px;gap:16px;padding:9px 0 10px;border-top:1px solid var(--line);justify-content:center;flex-wrap:wrap}
  .nav-links a,.nav-drop-t{font-size:13px}
  /* sur ordinateur le panneau est centre sur son bouton ; sur mobile ce
     centrage le faisait sortir par la gauche. On l'aligne donc sur le bord
     gauche du bouton. */
  .nav-drop-m{left:0;transform:translateX(0) translateY(-6px);max-width:calc(100vw - 32px)}
  .nav-drop:hover .nav-drop-m,.nav-drop.is-open .nav-drop-m{transform:translateX(0) translateY(0)}
}
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--font-body);font-weight:600;font-size:14.5px;text-decoration:none;border-radius:100px;padding:12px 22px;cursor:pointer;transition:filter .2s ease,transform .2s ease,border-color .2s ease}
.btn svg{width:16px;height:16px}
.btn-accent{background:var(--accent);color:#fff;border:1px solid var(--accent)}
.btn-accent:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line-strong)}
.btn-ghost:hover{border-color:var(--accent)}
.nav .btn{padding:11px 20px}

/* ===== HERO ===== */
.phero{padding:clamp(56px,8vw,104px) 0 clamp(40px,6vw,72px);overflow:hidden}
.phero .eyebrow{margin-bottom:18px}
.phero h1{max-width:20ch}
.phero .lead{margin-top:22px;font-size:clamp(16px,1.6vw,19px);color:var(--ink-soft);max-width:60ch}
.phero .cta{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}
.hero-home{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero-badge{aspect-ratio:1/.86;border-radius:22px;border:1px solid var(--line);background:radial-gradient(60% 60% at 50% 40%,var(--surface-2),var(--surface));position:relative;overflow:hidden;display:grid;place-items:center}
.hero-badge .glow{position:absolute;inset:0;background:radial-gradient(46% 40% at 30% 60%,rgba(255,122,31,.4),transparent 55%),radial-gradient(44% 40% at 70% 34%,rgba(30,99,200,.4),transparent 55%)}
.hero-badge img{position:relative;z-index:1;width:64%}
@media(max-width:860px){.hero-home{grid-template-columns:1fr;gap:30px}.hero-badge{max-width:420px}}

/* ===== SECTIONS ===== */
.sec{padding:clamp(52px,7vw,92px) 0;position:relative;z-index:2}
.sec--alt{background:var(--ground-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px}
.sec-head h2{margin-top:14px}
.sec-head .sub{margin-top:16px;color:var(--ink-soft);font-size:17px}

/* ===== CARTES prestations ===== */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:clamp(34px,4vw,52px)}
.card{--ca:255,106,51;--cai:255,150,105;display:flex;flex-direction:column;padding:26px 24px;border-radius:20px;text-decoration:none;color:inherit;
  background:linear-gradient(180deg,color-mix(in srgb,rgb(var(--ca)) 7%,var(--surface)),var(--surface));
  border:1px solid color-mix(in srgb,rgb(var(--ca)) 24%,var(--line));box-shadow:0 34px 64px -42px rgba(0,0,0,.75);
  transition:transform .3s ease,border-color .3s ease}
.card.blue{--ca:24,164,214;--cai:110,204,238}
.card:hover{transform:translateY(-6px);border-color:color-mix(in srgb,rgb(var(--ca)) 50%,var(--line))}
.card .num{font-family:var(--font-display);font-size:52px;line-height:.85;color:color-mix(in srgb,rgb(var(--ca)) 60%,var(--ink-faint))}
.card .cat{display:block;font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:rgb(var(--cai));margin:10px 0 2px}
.card h3{margin:6px 0 6px}
.card p{color:var(--ink-soft);font-size:14.5px;flex:1}
.card .go{margin-top:16px;display:inline-flex;align-items:center;gap:8px;color:rgb(var(--cai));font-weight:600;font-size:14.5px}
.card .go svg{width:16px;height:16px;transition:transform .25s ease}
.card:hover .go svg{transform:translateX(4px)}
@media(max-width:900px){.cards{grid-template-columns:1fr}}

/* ===== LISTE À ICÔNES ===== */
.flist{list-style:none;margin:26px 0 0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:6px 34px}
.flist li{display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-top:1px solid var(--line)}
.flist .ic{width:26px;height:26px;flex:none;color:var(--accent-ink);margin-top:1px}
.flist .ic svg{width:26px;height:26px}
.flist b{display:block;font-weight:600;font-size:15.5px}
.flist span{color:var(--ink-faint);font-size:13.5px}
@media(max-width:720px){.flist{grid-template-columns:1fr}}

/* ===== ÉTAPES ===== */
.steps{counter-reset:s;list-style:none;margin:26px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.steps li{position:relative;padding:22px 20px;border:1px solid var(--line);border-radius:16px;background:var(--surface)}
.steps li::before{counter-increment:s;content:counter(s,decimal-leading-zero);font-family:var(--font-mono);font-size:12px;color:var(--accent-ink);letter-spacing:.1em}
.steps h4{margin:10px 0 6px;font-family:var(--font-body);font-weight:600;font-size:16px}
.steps p{color:var(--ink-faint);font-size:13.5px}
@media(max-width:900px){.steps{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.steps{grid-template-columns:1fr}}

/* ===== bandeau CTA ===== */
.ctaband{margin:0;padding:clamp(40px,6vw,64px) 0}
.ctaband-in{border:1px solid var(--line-strong);border-radius:24px;padding:clamp(30px,5vw,50px);background:
  radial-gradient(50% 120% at 20% 0%,rgba(255,106,51,.16),transparent 70%),var(--surface);text-align:center}
.ctaband h2{margin-bottom:12px}
.ctaband p{color:var(--ink-soft);max-width:52ch;margin:0 auto 22px}
.ctaband .cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ===== réalisations ===== */
.projs{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;margin-top:36px}
.proj{border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--surface);transition:transform .3s ease,border-color .3s ease}
.proj:hover{transform:translateY(-5px);border-color:var(--line-strong)}
.proj .top{height:150px;position:relative;background:var(--ground-2);display:grid;place-items:center;border-bottom:1px solid var(--line)}
.proj .top .g{position:absolute;inset:0;background:radial-gradient(60% 80% at 30% 40%,rgba(255,122,31,.28),transparent 60%),radial-gradient(60% 80% at 75% 60%,rgba(30,99,200,.28),transparent 60%)}
.proj .top .tag{position:relative;font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink);background:rgba(0,0,0,.4);border:1px solid var(--line-strong);padding:7px 13px;border-radius:100px}
.proj .body{padding:22px 22px 24px}
.proj .k{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-ink)}
.proj h3{margin:8px 0 6px;font-size:20px}
.proj p{color:var(--ink-soft);font-size:14px}
@media(max-width:760px){.projs{grid-template-columns:1fr}}

/* ===== contact ===== */
.cgrid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(30px,5vw,60px);align-items:start;margin-top:30px}
.cinfo{list-style:none;margin:26px 0 0;padding:0}
.cinfo li{display:flex;align-items:center;gap:16px;padding:16px 0;border-top:1px solid var(--line)}
.cinfo .ic{width:40px;height:40px;border-radius:11px;background:color-mix(in srgb,var(--accent) 12%,var(--surface));border:1px solid color-mix(in srgb,var(--accent) 22%,transparent);color:var(--accent-ink);display:grid;place-items:center;flex:none}
.cinfo .ic svg{width:18px;height:18px}
.cinfo .l{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint)}
.cinfo .v{font-size:16.5px;font-weight:500;color:var(--ink);text-decoration:none;margin-top:2px;display:block}
.form{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:26px}
.form label{display:block;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);margin:14px 0 6px}
.form input,.form textarea{width:100%;font-family:var(--font-body);font-size:15px;color:var(--ink);background:var(--ground);border:1px solid var(--line-strong);border-radius:10px;padding:12px 14px}
.form textarea{min-height:110px;resize:vertical}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--accent)}
.form .btn{margin-top:20px;width:100%;justify-content:center}
@media(max-width:820px){.cgrid{grid-template-columns:1fr}}

/* ===== FOOTER ===== */
footer{background:var(--ground);border-top:1px solid var(--line);padding:40px 0 30px;margin-top:20px}
.foot-in{display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap;color:var(--ink-faint);font-size:13.5px}
/* ===== Palette claire (identique a celle de la page d'accueil) ===== */
.tone-light{
  --ground:#F9F7F4;--ground-2:#F1EEE8;--surface:#FFFFFF;--surface-2:#F1EEE8;
  --ink:#0B1120;--ink-soft:#43506A;--ink-faint:#6C7488;
  --line:#E4E0D8;--line-strong:#D3CDC1;
  --accent:#FF5A1F;--accent-ink:#B23100;
  background:var(--ground);color:var(--ink);
}
.tone-light.thermbg-light{background-color:var(--ground);
  background-image:
    radial-gradient(36% 44% at 12% 14%, rgba(30,99,200,.14) 0%, rgba(18,169,200,.10) 44%, rgba(18,176,142,.05) 70%, transparent 84%),
    radial-gradient(34% 42% at 88% 20%, rgba(225,29,46,.11) 0%, rgba(255,122,31,.12) 42%, rgba(245,197,24,.06) 70%, transparent 86%),
    radial-gradient(42% 50% at 78% 92%, rgba(255,122,31,.12) 0%, rgba(245,197,24,.08) 44%, rgba(18,176,142,.05) 72%, transparent 86%)}

/* meme typographie que le reste du pied de page */
.foot-slogan{font-family:var(--font-body);font-size:13.5px;letter-spacing:0;text-transform:none}
/* logo dans le bloc Coordonnees : le PNG est blanc, on l'inverse sur fond clair */
.cinfo-logo{height:30px;width:auto;margin:14px 0 2px;filter:invert(1)}
.foot-legal{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);display:flex;gap:22px;flex-wrap:wrap}
.foot-legal a{font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);text-decoration:none}
.foot-legal a:hover{color:var(--accent-ink)}

/* util */
.center{text-align:center}
.mt0{margin-top:0}
.twocol{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,52px);align-items:center}
@media(max-width:860px){.twocol{grid-template-columns:1fr;gap:28px}}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:28px}
.panel h3{margin-bottom:10px}
.panel p{color:var(--ink-soft);font-size:15px}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tags span{font-family:var(--font-mono);font-size:11px;color:var(--accent-ink);background:color-mix(in srgb,var(--accent) 12%,transparent);border:1px solid color-mix(in srgb,var(--accent) 24%,transparent);padding:5px 11px;border-radius:100px}

/* ===== fiches projet plein écran (importées du site) ===== */
.proj{position:relative;cursor:pointer}
.proj-cover{position:absolute;inset:0;z-index:2;border-radius:18px}

/* --- Categories cliquables : le GIF est un onglet qui revele 2 projets --- */
.cats{margin-top:38px}
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:start}
.cat{min-width:0}
.cat-tab{position:relative;display:flex;flex-direction:column;width:100%;text-align:left;padding:0;margin:0;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--surface);color:var(--ink);cursor:pointer;font:inherit;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.cat-tab:hover{transform:translateY(-4px);box-shadow:0 1px 2px rgba(0,11,33,.05),0 22px 44px -28px rgba(0,11,33,.5);border-color:var(--line-strong)}
.cat-thumb{display:block;overflow:hidden}
.cat-thumb img,.cat-thumb video{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s ease}
.cat-tab:hover .cat-thumb img,.cat-tab:hover .cat-thumb video{transform:scale(1.04)}
.cat-cap{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:13px 15px;border-top:1px solid var(--line)}
.cat-cap b{font-family:var(--font-display);font-weight:600;font-size:15.5px;line-height:1.15;letter-spacing:.01em}
.cat-cap i{flex:none;font-family:var(--font-mono);font-style:normal;font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint)}
.cat-hint{margin:18px 0 0;display:flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font-mono);font-size:11px;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-faint)}
.cat-hint svg{opacity:.75}
.cat-hint[hidden]{display:none}
.cat-projects{display:none}
.cat.is-open .cat-tab{display:none}
.cat.is-open .cat-projects{display:block;animation:catin .4s ease both}
@keyframes catin{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.cat-projgrid{display:grid;grid-template-columns:1fr;gap:14px}
.cat-close{margin-top:14px;display:inline-flex;align-items:center;gap:8px;padding:9px 15px;font-family:var(--font-body);font-weight:500;font-size:13px;color:var(--accent-ink);background:transparent;border:1px solid var(--line-strong);border-radius:100px;cursor:pointer;transition:background .2s ease,border-color .2s ease}
.cat-close:hover{background:color-mix(in srgb,var(--accent) 8%,transparent);border-color:var(--accent)}
.cat-close svg{opacity:.85}
@media(max-width:760px){
  .cat-grid{grid-template-columns:1fr;gap:14px}
  .cat-hint{margin-top:14px}
}
.pcard{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:26px;display:flex;flex-direction:column;position:relative;overflow:hidden;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.pcard::before{content:"";position:absolute;left:0;top:0;height:3px;width:100%;background:var(--therm);transform:scaleX(0);transform-origin:left;transition:transform .35s ease}
.pcard:hover{transform:translateY(-4px);box-shadow:0 1px 2px rgba(0,11,33,.04),0 22px 40px -24px rgba(0,11,33,.4);border-color:var(--line-strong)}
.pcard:hover::before{transform:scaleX(1)}
.ptag{margin-top:0;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint)}
.pcard h3{font-size:21px;margin-top:7px;line-height:1.12}
.pcard .pctx{margin-top:10px;color:var(--ink-soft);font-size:14.5px}
.pcard-link{text-decoration:none;color:var(--ink)}
.pcard-cta{margin-top:auto;padding-top:14px;display:inline-flex;align-items:center;gap:7px;font-family:var(--font-body);font-weight:600;font-size:14px;color:var(--accent-ink);border-top:1px solid var(--line)}
.pcard-link:hover .pcard-cta{gap:11px}
  .pdetail{position:fixed;inset:0;z-index:120;overflow-y:auto;background:var(--ground);color:var(--ink);display:none}
  .pdetail.on{display:block}
  body.detail-open{overflow:hidden}
  .pd-bar{position:sticky;top:0;z-index:5;display:flex;align-items:center;justify-content:space-between;gap:16px;height:62px;padding:0 clamp(18px,4vw,40px);background:color-mix(in srgb,var(--ground) 86%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
  .pd-back{display:inline-flex;align-items:center;gap:9px;font-family:var(--font-body);font-weight:500;font-size:14.5px;color:var(--ink);background:none;border:0;cursor:pointer;padding:8px 0}
  .pd-back:hover{color:var(--accent-ink)}
  .pd-bar .pd-brand{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint)}
  .pd-wrap{max-width:920px;margin:0 auto;padding:0 clamp(20px,4vw,28px)}
  .pd-hero{padding:52px 0 30px;border-bottom:1px solid var(--line)}
  .pd-hero .eyebrow{margin-bottom:16px}
  .pd-hero h1{font-family:var(--font-display);font-size:clamp(31px,5vw,54px);line-height:1.04;letter-spacing:-.015em;text-wrap:balance}
  .pd-hero .lead{margin-top:18px;color:var(--ink-soft);font-size:18px;max-width:60ch}
  .pd-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
  .pd-meta span{font-family:var(--font-mono);font-size:11px;letter-spacing:.05em;color:var(--ink-soft);background:var(--surface);border:1px solid var(--line);padding:6px 11px;border-radius:100px}
  .pd-body{padding:8px 0 90px}
  .pd-body>section{padding:34px 0;border-bottom:1px solid var(--line)}
  .pd-body>section:last-child{border-bottom:0}
  .pd-fig{margin:26px 0 6px;border-radius:16px;overflow:hidden;border:1px solid var(--line);background:var(--surface);box-shadow:0 1px 2px rgba(0,11,33,.05),0 26px 50px -30px rgba(0,11,33,.55)}
  .pd-fig img{display:block;width:100%;height:auto}
  .pd-fig figcaption{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint);padding:11px 15px;border-top:1px solid var(--line)}
  .pd-kicker{font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-ink);display:flex;align-items:center;gap:12px}
  .pd-kicker::before{content:"";width:26px;height:2px;background:var(--therm);border-radius:2px}
  .pd-body h2{font-family:var(--font-display);font-size:clamp(24px,3.4vw,34px);margin:14px 0 0;letter-spacing:-.01em}
  .pd-body h3{font-family:var(--font-body);font-weight:600;font-size:18.5px;margin:28px 0 4px;color:var(--ink)}
  .pd-body p{margin-top:14px;color:var(--ink-soft);font-size:16.5px;line-height:1.72;max-width:68ch}
  .pd-body p b,.pd-body li b{color:var(--ink);font-weight:600}
  .pd-body ul{margin:14px 0 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:10px}
  .pd-body li{position:relative;padding-left:26px;color:var(--ink-soft);font-size:16.5px;line-height:1.65;max-width:66ch}
  .pd-body li::before{content:"";position:absolute;left:4px;top:10px;width:8px;height:8px;border-radius:2px;background:var(--accent)}
  .pd-callout{margin-top:22px;background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:12px;padding:18px 20px;color:var(--ink-soft);font-size:15.5px;line-height:1.6}
  .pd-callout b{color:var(--ink)}
  .pd-fig{margin:26px 0 0;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:clamp(16px,3vw,26px)}
  .pd-fig svg{display:block;width:100%;height:auto}
  .pd-fig figcaption{margin-top:14px;font-family:var(--font-mono);font-size:11px;letter-spacing:.05em;color:var(--ink-faint);text-transform:uppercase}
  .pd-tablewrap{overflow-x:auto;margin-top:20px}
  .pd-table{width:100%;border-collapse:collapse;font-size:15px;border:1px solid var(--line);border-radius:12px;overflow:hidden;min-width:440px}
  .pd-table th,.pd-table td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line)}
  .pd-table thead th{font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-faint);background:var(--surface)}
  .pd-table td.val{text-align:right;font-variant-numeric:tabular-nums;font-weight:600;color:var(--ink);white-space:nowrap}
  .pd-table td .u{color:var(--ink-faint);font-weight:400;font-size:.85em;margin-left:4px}
  .pd-table tr:last-child td{border-bottom:0}
  .pd-table td.calc{color:#8fd694}
  .pd-legend{display:flex;gap:18px;margin-top:12px;font-family:var(--font-mono);font-size:11px;color:var(--ink-faint);flex-wrap:wrap}
  .pd-legend i{display:inline-block;width:11px;height:11px;border-radius:3px;margin-right:6px;vertical-align:-1px}
  .pd-formula{margin-top:18px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:20px 22px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
  .pd-formula .eq{font-family:var(--font-display);font-size:19px;color:var(--ink);line-height:1.6}
  .pd-formula .eq sub{font-size:.68em;color:var(--ink-soft)}
  .pd-formula .res{font-family:var(--font-mono);font-weight:600;font-size:17px;color:#8fd694;background:color-mix(in srgb,#8fd694 12%,transparent);border:1px solid color-mix(in srgb,#8fd694 32%,transparent);padding:8px 14px;border-radius:8px;white-space:nowrap}
  .frac{display:inline-flex;flex-direction:column;text-align:center;vertical-align:middle;margin:0 3px;font-size:.9em}
  .frac .num{border-bottom:1.5px solid currentColor;padding:0 7px 1px}
  .frac .den{padding:1px 7px 0}
  @media(max-width:620px){.pd-formula{flex-direction:column;align-items:flex-start}.pd-body p,.pd-body li{max-width:none}}

@media(max-width:520px){.pd-hero h1{font-size:clamp(25px,7vw,34px)}.pd-hero .lead{font-size:15.5px}}