/* ==========================================================================
   Lucius AI — Design System
   Palette reprise du site existant : noir profond, violet électrique, cyan.
   ========================================================================== */

@font-face{font-family:"Poppins";font-style:normal;font-weight:400;font-display:swap;src:url("../fonts/poppins-latin-400.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Poppins";font-style:normal;font-weight:500;font-display:swap;src:url("../fonts/poppins-latin-500.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Poppins";font-style:normal;font-weight:600;font-display:swap;src:url("../fonts/poppins-latin-600.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Poppins";font-style:normal;font-weight:700;font-display:swap;src:url("../fonts/poppins-latin-700.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Inter";font-style:normal;font-weight:400;font-display:swap;src:url("../fonts/inter-latin-400.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Inter";font-style:normal;font-weight:500;font-display:swap;src:url("../fonts/inter-latin-500.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Inter";font-style:normal;font-weight:600;font-display:swap;src:url("../fonts/inter-latin-600.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

:root{
  color-scheme:dark;
  --bg:#05050B;
  --bg-2:#0A0A14;
  --surface:#10101F;
  --surface-2:#171730;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);

  --violet:#6C2BF5;
  --violet-600:#5A1FD8;
  --violet-300:#A98BFF;
  --cyan:#22D3EE;
  --cyan-300:#7BE7F7;
  --grad:linear-gradient(120deg,#22D3EE 0%,#6C2BF5 55%,#A855F7 100%);
  --grad-soft:linear-gradient(120deg,rgba(34,211,238,.18),rgba(108,43,245,.18));

  --text:#FFFFFF;
  --muted:#A5A5C0;
  --muted-2:#7D7D9C;

  --r-sm:10px; --r:16px; --r-lg:24px; --r-xl:32px; --r-pill:999px;
  --wrap:1180px;
  --sp:clamp(56px,7vw,104px);

  --text-soft:#E4E4F5;--nav-text:#E8E8F5;
  --header-bg:rgba(5,5,11,.82);--hover:rgba(255,255,255,.08);--hover-soft:rgba(255,255,255,.04);
  --hero-g1:rgba(108,43,245,.42);--hero-g2:rgba(34,211,238,.24);
  --shadow:0 20px 60px -20px rgba(0,0,0,.8);
  --glow:0 0 0 1px rgba(108,43,245,.35), 0 18px 50px -12px rgba(108,43,245,.55);

  --font-head:"Poppins","Segoe UI",system-ui,-apple-system,sans-serif;
  --font-body:"Inter","Segoe UI",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font-body);font-size:17px;line-height:1.7;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img,svg,video{max-width:100%;height:auto;display:block}
a{color:var(--cyan-300);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:700;line-height:1.15;margin:0 0 .5em;letter-spacing:-.02em}
h1{font-size:clamp(2.1rem,5.2vw,3.7rem)}
h2{font-size:clamp(1.65rem,3.6vw,2.6rem)}
h3{font-size:clamp(1.2rem,2.2vw,1.55rem)}
h4{font-size:1.08rem}
p{margin:0 0 1.15em}
ul,ol{margin:0 0 1.3em;padding-left:1.25em}
li{margin:.4em 0}
hr{border:0;border-top:1px solid var(--line);margin:2.5rem 0}
::selection{background:var(--violet);color:#fff}

.wrap{width:min(var(--wrap),calc(100% - 44px));margin-inline:auto}
.wrap-narrow{width:min(760px,calc(100% - 44px));margin-inline:auto}
.section{padding:var(--sp) 0}
.section--tight{padding:calc(var(--sp)*.6) 0}
.center{text-align:center}
.muted{color:var(--muted)}
.lead{font-size:clamp(1.05rem,1.6vw,1.25rem);color:var(--muted)}
.mb0{margin-bottom:0}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- Skip link + a11y ---------- */
.skip{position:absolute;left:-9999px;top:0;background:var(--violet);color:#fff;padding:12px 18px;z-index:200;border-radius:0 0 var(--r-sm) 0}
.skip:focus{left:0}
:focus-visible{outline:3px solid var(--cyan);outline-offset:3px;border-radius:4px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--header-bg);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.site-header__inner{display:flex;align-items:center;gap:24px;min-height:74px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand img{height:38px;width:auto}
.nav{margin-left:auto;display:flex;align-items:center;gap:4px}
.nav a{
  color:var(--nav-text);font-size:.95rem;font-weight:500;padding:9px 14px;border-radius:var(--r-pill);
  text-decoration:none;transition:background .18s,color .18s;white-space:nowrap
}
.nav a:hover,.nav a[aria-current="page"]{background:var(--hover);text-decoration:none}
.nav a[aria-current="page"]{color:var(--cyan-300)}
.nav .btn{margin-left:10px}
.nav a.btn--primary,.nav a.btn--primary:hover{color:#fff;background:var(--violet-600);font-weight:600}
.nav a.btn--primary:hover{background:var(--violet)}
.burger{
  margin-left:auto;display:none;background:transparent;border:1px solid var(--line-strong);
  color:var(--text);width:46px;height:46px;border-radius:12px;cursor:pointer;align-items:center;justify-content:center
}
.burger span{display:block;width:20px;height:2px;background:currentColor;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:currentColor}
.burger span::before{top:-6px}.burger span::after{top:6px}

@media(max-width:1160px){
  .burger{display:flex}
  .nav{
    display:none;position:absolute;top:74px;left:0;right:0;flex-direction:column;align-items:stretch;
    background:var(--bg-2);border-bottom:1px solid var(--line);padding:14px 22px 22px;gap:2px
  }
  .nav.is-open{display:flex}
  .nav a{padding:13px 12px}
  .nav .btn{margin:10px 0 0;text-align:center}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 28px;border-radius:var(--r-pill);font-family:var(--font-head);
  font-weight:600;font-size:1rem;line-height:1;cursor:pointer;border:1px solid transparent;
  text-decoration:none;transition:transform .16s,box-shadow .2s,background .2s;
}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn--primary{background:var(--violet);color:#fff;box-shadow:var(--glow)}
.btn--primary:hover{background:var(--violet-600)}
.btn--ghost{background:transparent;color:var(--text);border-color:var(--line-strong)}
.btn--ghost:hover{background:var(--hover)}
.btn--light{background:#fff;color:var(--violet)}
.btn--sm{padding:10px 20px;font-size:.92rem}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.center .btn-row{justify-content:center}

/* ---------- Hero ---------- */
.hero{position:relative;padding:clamp(60px,8vw,110px) 0 clamp(50px,7vw,90px);overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:-25% -10% auto -10%;height:720px;z-index:-1;
  background:radial-gradient(52% 55% at 22% 34%,var(--hero-g1),transparent 70%),
             radial-gradient(45% 50% at 82% 20%,var(--hero-g2),transparent 70%);
  filter:blur(8px);
}
.hero__grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,5vw,64px);align-items:center}
.hero h1{margin-bottom:.45em}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;padding:7px 16px;border-radius:var(--r-pill);
  background:rgba(108,43,245,.16);border:1px solid rgba(168,85,247,.38);
  font-size:.82rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--violet-300);
  margin-bottom:22px;font-family:var(--font-head)
}
.eyebrow--cyan{background:rgba(34,211,238,.12);border-color:rgba(34,211,238,.4);color:var(--cyan-300)}
@media(max-width:900px){.hero__grid{grid-template-columns:1fr}}

/* ---------- Media ---------- */
.media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow)}
.media video,.media img{width:100%;display:block}
.video-frame{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--glow)}
.video-frame video{width:100%;display:block;background:#000}

/* ---------- Split rows ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,66px);align-items:center}
.split--reverse .split__media{order:-1}
@media(max-width:900px){
  .split{grid-template-columns:1fr}
  .split--reverse .split__media{order:0}
}

/* ---------- Cards / grids ---------- */
.grid{display:grid;gap:22px}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(285px,1fr))}
.grid--4{grid-template-columns:repeat(auto-fit,minmax(225px,1fr))}

.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;transition:border-color .2s,transform .2s,background .2s;position:relative;overflow:hidden
}
.card:hover{border-color:rgba(168,85,247,.5);transform:translateY(-4px)}
.card h3{margin-bottom:.4em}
.card p:last-child{margin-bottom:0}
.card__icon{width:52px;height:52px;margin-bottom:18px}
a.card{display:block;color:inherit;text-decoration:none}
a.card:hover{text-decoration:none}
.card--link h3{color:var(--text)}
.card__more{color:var(--cyan-300);font-weight:600;font-size:.93rem;font-family:var(--font-head);display:inline-flex;gap:6px;align-items:center;margin-top:4px}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:20px}
.stat{
  background:var(--grad-soft);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 24px;text-align:center
}
.stat__num{font-family:var(--font-head);font-size:clamp(2rem,4vw,2.7rem);font-weight:700;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat__label{color:var(--muted);font-size:.93rem;margin-top:10px;display:block}

/* ---------- Steps ---------- */
.steps{counter-reset:step;display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.step{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;position:relative}
.step::before{
  counter-increment:step;content:counter(step);
  display:flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:50%;
  background:var(--grad);color:#fff;font-family:var(--font-head);font-weight:700;margin-bottom:16px
}
.step h3{font-size:1.1rem}
.step p{margin-bottom:0;color:var(--muted);font-size:.97rem}

/* ---------- CTA band ---------- */
.cta-band{background:var(--violet);border-radius:var(--r-xl);padding:clamp(38px,5vw,64px);text-align:center;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;inset:auto -20% -60% -20%;height:280px;background:radial-gradient(50% 60% at 50% 50%,rgba(34,211,238,.45),transparent 70%)}
.cta-band>*{position:relative;z-index:1}
.cta-band h2{color:#fff}
.cta-band p{color:rgba(255,255,255,.88);max-width:620px;margin-inline:auto}

/* ---------- Logos / sectors strip ---------- */
.pill-row{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.pill{
  padding:9px 18px;border-radius:var(--r-pill);border:1px solid var(--line-strong);
  background:var(--hover-soft);font-size:.9rem;color:var(--nav-text);font-weight:500
}

/* ---------- Article / prose ---------- */
.prose{font-size:1.06rem}
.prose h2{margin-top:2.2em;scroll-margin-top:100px}
.prose h3{margin-top:1.7em;scroll-margin-top:100px}
.prose ul li::marker{color:var(--cyan)}
.prose ol li::marker{color:var(--violet-300);font-weight:700}
.prose blockquote{
  margin:2em 0;padding:20px 26px;border-left:3px solid var(--violet);
  background:var(--surface);border-radius:0 var(--r) var(--r) 0;color:var(--text-soft);font-style:normal
}
.prose blockquote p:last-child{margin-bottom:0}
.prose table{width:100%;border-collapse:collapse;margin:1.8em 0;font-size:.95rem;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
.prose th{background:var(--surface-2);font-family:var(--font-head);font-weight:600}
.prose figure{margin:2em 0}
.prose figcaption{color:var(--muted-2);font-size:.88rem;margin-top:10px;text-align:center}
.prose a{text-decoration:underline;text-underline-offset:3px}

.callout{
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--cyan);
  border-radius:0 var(--r) var(--r) 0;padding:20px 24px;margin:2em 0
}
.callout strong:first-child{color:var(--cyan-300)}
.callout p:last-child{margin-bottom:0}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:0;overflow:hidden}
.faq summary{
  cursor:pointer;padding:20px 24px;font-family:var(--font-head);font-weight:600;font-size:1.03rem;
  list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:flex-start
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--cyan);font-size:1.5rem;line-height:1;flex:0 0 auto}
.faq details[open] summary::after{content:"–"}
.faq details>div{padding:0 24px 20px;color:var(--muted)}
.faq details>div p:last-child{margin-bottom:0}

/* ---------- Breadcrumb ---------- */
.crumbs{font-size:.86rem;color:var(--muted-2);padding:20px 0 0}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0}
.crumbs li::after{content:"/";margin-left:8px;color:var(--muted-2)}
.crumbs li:last-child::after{content:""}
.crumbs a{color:var(--muted)}

/* ---------- Article list ---------- */
.post-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  display:flex;flex-direction:column;transition:border-color .2s,transform .2s;color:inherit;text-decoration:none
}
.post-card:hover{border-color:rgba(168,85,247,.5);transform:translateY(-4px);text-decoration:none}
.post-card__img{aspect-ratio:16/9;background:var(--surface-2);width:100%;object-fit:cover}
.post-card__body{padding:24px;display:flex;flex-direction:column;flex:1}
.post-card h3{font-size:1.14rem;margin-bottom:.45em}
.post-card p{color:var(--muted);font-size:.95rem;flex:1}
.tag{
  display:inline-block;font-size:.73rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;
  color:var(--cyan-300);background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.3);
  padding:4px 11px;border-radius:var(--r-pill);margin-bottom:12px;font-family:var(--font-head)
}
.tag--violet{color:var(--violet-300);background:rgba(108,43,245,.16);border-color:rgba(168,85,247,.35)}
.meta{color:var(--muted-2);font-size:.85rem;margin-top:14px}

/* ---------- Events ---------- */
.event{
  display:grid;grid-template-columns:132px 1fr auto;gap:24px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px 26px;margin-bottom:14px
}
.event__date{
  background:var(--grad-soft);border:1px solid var(--line);border-radius:var(--r);padding:12px;text-align:center
}
.event__day{font-family:var(--font-head);font-weight:700;font-size:1.3rem;display:block;line-height:1.2}
.event__month{font-size:.8rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.event h3{font-size:1.1rem;margin-bottom:.25em}
.event p{margin:0;color:var(--muted);font-size:.94rem}
@media(max-width:760px){.event{grid-template-columns:1fr;gap:14px}.event__date{max-width:132px}}

/* ---------- TOC ---------- */
.toc{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px 28px;margin:0 0 2.5em}
.toc h2{font-size:1rem!important;margin:0 0 .8em!important;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.toc ol{margin:0;padding-left:1.2em}
.toc li{margin:.35em 0}
.toc a{color:var(--text-soft);text-decoration:none;font-size:.96rem}
.toc a:hover{color:var(--cyan-300);text-decoration:underline}

/* ---------- Footer ---------- */
.site-footer{background:var(--bg-2);border-top:1px solid var(--line);padding:clamp(48px,6vw,76px) 0 32px;margin-top:var(--sp)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
@media(max-width:860px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr}}
.site-footer h4{font-size:.82rem;text-transform:uppercase;letter-spacing:.09em;color:var(--muted);margin-bottom:1.1em}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:.55em 0}
.site-footer a{color:var(--nav-text);font-size:.94rem;text-decoration:none}
.site-footer a:hover{color:var(--cyan-300);text-decoration:underline}
.footer-bottom{
  margin-top:44px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;color:var(--muted-2);font-size:.86rem
}

/* ---------- Utilities ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* --- En-tête d'article : titre plus compact que les hero de section --- */
article > header h1{font-size:clamp(1.85rem,3.6vw,2.75rem);max-width:22ch}
article > header{padding-top:8px}
.post-card__img{aspect-ratio:1200/380}
.grid--half{grid-template-columns:repeat(2,minmax(0,1fr))}
@media(max-width:760px){.grid--half{grid-template-columns:1fr}}

.site-header{top:env(safe-area-inset-top,0px)}

.video-top{padding:clamp(18px,3vw,34px) 0 0}
.video-top--after{padding:0 0 clamp(18px,3vw,34px)}

/* ==========================================================================
   Thème clair
   ========================================================================== */
:root[data-theme="light"]{
  color-scheme:light;
  --bg:#F6F7FC;--bg-2:#ECEEF8;--surface:#FFFFFF;--surface-2:#EEF0FA;
  --line:rgba(16,16,48,.11);--line-strong:rgba(16,16,48,.22);
  --violet-300:#5A1FD8;--cyan:#0891B2;--cyan-300:#0E7490;
  --grad-soft:linear-gradient(120deg,rgba(34,211,238,.16),rgba(108,43,245,.12));
  --text:#0B0B1C;--muted:#4A4A68;--muted-2:#66668A;
  --text-soft:#1B1B36;--nav-text:#1F1F3A;
  --header-bg:rgba(246,247,252,.86);--hover:rgba(16,16,48,.07);--hover-soft:rgba(16,16,48,.04);
  --hero-g1:rgba(108,43,245,.16);--hero-g2:rgba(34,211,238,.20);
  --shadow:0 24px 50px -26px rgba(30,30,80,.35);
  --glow:0 0 0 1px rgba(108,43,245,.25),0 14px 34px -14px rgba(108,43,245,.45);
}
:root[data-theme="light"] ::selection{background:var(--violet);color:#fff}
:root[data-theme="light"] .site-footer{background:#E8EAF6}
:root[data-theme="light"] .site-footer h4{color:var(--muted)}
:root[data-theme="light"] .eyebrow{background:rgba(108,43,245,.10);border-color:rgba(108,43,245,.30)}
:root[data-theme="light"] .eyebrow--cyan{background:rgba(8,145,178,.10);border-color:rgba(8,145,178,.35)}
:root[data-theme="light"] .tag{background:rgba(8,145,178,.10);border-color:rgba(8,145,178,.30)}
:root[data-theme="light"] .tag--violet{background:rgba(108,43,245,.10);border-color:rgba(108,43,245,.30)}
:root[data-theme="light"] .card:hover,:root[data-theme="light"] .post-card:hover{border-color:rgba(108,43,245,.45)}
:root[data-theme="light"] .media{background:#0A0A14}
:root[data-theme="light"] .cta-band{background:linear-gradient(120deg,#5A1FD8,#6C2BF5)}
:root[data-theme="light"] .btn--light{background:#fff;color:var(--violet-600)}
:root[data-theme="light"] .btn--ghost{border-color:var(--line-strong)}
:root[data-theme="light"] .cta-band .btn--ghost{color:#fff!important;border-color:rgba(255,255,255,.55)!important}
:root[data-theme="light"] .cta-band .btn--ghost:hover{background:rgba(255,255,255,.12)}
:root[data-theme="light"] .nav a[aria-current="page"]{color:var(--violet-600);background:rgba(108,43,245,.09)}
:root[data-theme="light"] .site-header{box-shadow:0 1px 0 var(--line)}
:root[data-theme="light"] .prose th{background:var(--surface-2)}

/* Logo : deux versions selon le thème */
.logo--light{display:none}
:root[data-theme="light"] .logo--dark{display:none}
:root[data-theme="light"] .logo--light{display:block}

/* ---------- Bouton de thème ---------- */
.theme-toggle{
  flex:0 0 auto;margin-left:10px;min-width:44px;height:44px;padding:0 14px;border-radius:99px;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;font:600 .88rem var(--font-head,inherit);
  background:var(--surface-2,transparent);color:var(--text);border:2px solid var(--cyan-300,var(--text));
  transition:background .18s,transform .18s
}
.theme-toggle:hover{background:var(--hover);transform:translateY(-1px)}
.theme-toggle__lbl{white-space:nowrap}
.theme-toggle .lbl-light{display:none}
:root[data-theme="light"] .theme-toggle .lbl-light{display:inline}
:root[data-theme="light"] .theme-toggle .lbl-dark{display:none}
:root[data-theme="light"] .theme-toggle{border-color:var(--violet-600)}
@media(max-width:1439px){.theme-toggle{padding:0;width:44px}.theme-toggle__lbl{display:none}}
.theme-toggle svg{width:22px;height:22px}
.theme-toggle .i-sun{display:none}
:root[data-theme="light"] .theme-toggle .i-sun{display:block}
:root[data-theme="light"] .theme-toggle .i-moon{display:none}
@media(max-width:1160px){
  .theme-toggle{margin-left:auto}
  .burger{margin-left:8px}
}

/* ==========================================================================
   Consentement cookies (RGPD / CNIL) : barre + préférences
   ========================================================================== */
.consent{
  position:fixed;left:0;right:0;bottom:0;z-index:300;
  background:var(--surface);color:var(--text);border-top:1px solid var(--line-strong);
  box-shadow:0 -18px 50px -18px rgba(0,0,0,.55);padding:18px 0 calc(18px + env(safe-area-inset-bottom,0px))
}
.consent[hidden]{display:none}
.consent{max-height:92vh;max-height:92dvh;overflow-y:auto;overscroll-behavior:contain}
/* Refuser et Accepter : strictement le même rendu (recommandation CNIL) */
.consent__btn{border:2px solid var(--text);font-weight:600}
.consent__btn:hover{background:var(--text);color:var(--bg)}
.consent__inner{display:flex;gap:18px 32px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.consent__text{flex:1 1 520px;min-width:0}
.consent__text h2{font-size:1.05rem;margin:0 0 .3em;letter-spacing:0}
.consent__text p{margin:0;font-size:.92rem;color:var(--muted);line-height:1.55}
.consent__text a{color:var(--cyan-300);text-decoration:underline}
.consent__actions{display:flex;flex-wrap:wrap;gap:10px;flex:0 0 auto}
.consent__panel{margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}
.consent__panel[hidden]{display:none}
.consent__row{display:flex;gap:16px;align-items:flex-start;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--line)}
.consent__row:last-of-type{border-bottom:0}
.consent__row strong{display:block;font-family:var(--font-head);font-size:.98rem}
.consent__row span{display:block;font-size:.86rem;color:var(--muted);margin-top:2px;max-width:70ch}
.switch{position:relative;flex:0 0 auto;width:50px;height:28px;margin-top:2px}
.switch input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:pointer;z-index:2}
.switch i{position:absolute;inset:0;border-radius:99px;background:var(--line-strong);transition:background .2s}
.switch i::after{content:"";position:absolute;left:3px;top:3px;width:22px;height:22px;border-radius:50%;background:#fff;transition:transform .2s;box-shadow:0 1px 3px rgba(0,0,0,.4)}
.switch input:checked + i{background:var(--violet)}
.switch input:checked + i::after{transform:translateX(22px)}
.switch input:disabled{cursor:not-allowed}
.switch input:disabled + i{opacity:.55}
.switch input:focus-visible + i{outline:3px solid var(--cyan);outline-offset:3px}
.consent__save{margin-top:12px;display:flex;justify-content:flex-end}
.link-btn{background:none;border:0;padding:0;font:inherit;color:inherit;cursor:pointer;text-decoration:none}
.site-footer .link-btn{color:var(--nav-text);font-size:.94rem}
.site-footer .link-btn:hover{color:var(--cyan-300);text-decoration:underline}
@media(max-width:700px){
  .consent{padding-top:14px}
  .consent__actions{width:100%}
  .consent__actions .btn{flex:1 1 calc(50% - 5px);padding:12px 14px}
  .consent__actions [data-consent="custom"]{order:3;flex-basis:100%}
}
:root[data-theme="light"] .consent__btn{border-color:var(--text)}
:root[data-theme="light"] .consent__btn:hover{background:var(--text);color:#fff}

/* ---------- Sous-menu « Technologie » ---------- */
.nav__group{position:relative;display:flex;align-items:center}
.nav__group .nav__parent{padding-right:4px}
.nav__chev{
  background:transparent;border:0;color:var(--nav-text);cursor:pointer;width:26px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;border-radius:99px;margin-left:-2px
}
.nav__chev svg{transition:transform .18s}
.nav__chev:hover{background:var(--hover)}
.nav__chev[aria-expanded="true"] svg{transform:rotate(180deg)}
.nav__group.is-active .nav__parent{color:var(--cyan-300)}
:root[data-theme="light"] .nav__group.is-active .nav__parent{color:var(--violet-600)}
.nav__sub{
  position:absolute;top:calc(100% + 8px);left:0;min-width:270px;padding:8px;z-index:60;
  background:var(--surface);border:1px solid var(--line-strong);border-radius:16px;
  box-shadow:0 24px 50px -18px rgba(0,0,0,.55);
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .16s,transform .16s,visibility .16s
}
.nav__sub::before{content:"";position:absolute;left:0;right:0;top:-10px;height:10px}
.nav__sub a{display:block;border-radius:10px;padding:11px 14px;white-space:nowrap}
.nav__group:hover .nav__sub,.nav__group:focus-within .nav__sub,.nav__group.is-open .nav__sub{opacity:1;visibility:visible;transform:none}
@media(max-width:1160px){
  .nav__group{flex-direction:row;flex-wrap:wrap;align-items:stretch}
  .nav__group .nav__parent{flex:1 1 auto;padding-right:12px}
  .nav__chev{display:none}
  .nav__sub{
    position:static;opacity:1;visibility:visible;transform:none;min-width:0;width:100%;
    background:transparent;border:0;box-shadow:none;padding:0 0 4px 16px;border-left:2px solid var(--line-strong);margin:0 0 6px 12px
  }
  .nav__sub::before{display:none}
  .nav__sub a{padding:11px 12px}
}

/* ---------- Vidéos : calque de lecture sur l'aperçu ---------- */
.vwrap{position:relative}
.vwrap video{width:100%;display:block}
.vplay{
  position:absolute;inset:0 0 56px 0;width:100%;border:0;padding:0;cursor:pointer;background:transparent;
  display:flex;align-items:center;justify-content:center;color:#fff;border-radius:inherit
}
.vplay[hidden]{display:none}
.vplay span{display:none}
.vplay:hover{background:rgba(255,255,255,.04)}
.vplay svg{display:none}