:root{
  --bg:#fbfaff;--surface:#fff;--text:#12163a;--muted:#5b6185;--line:#e6e8f5;
  --primary:#4338ca;--primary-2:#7c3aed;--tint:#eef0ff;--navy:#0e1238;
  --accent:var(--primary);--accent2:#22d3ee;
  --radius:18px;--shadow:0 12px 32px rgba(67,56,202,.12);
  --font:'Poppins',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
}
[data-theme=dark]{
  --bg:#0a0d24;--surface:#141840;--text:#eef0ff;--muted:#a3a9d6;--line:#252a5c;
  --primary:#6d63f5;--primary-2:#a78bfa;--tint:#1b2050;--navy:#070918;
  --shadow:0 12px 32px rgba(0,0,0,.45);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.65;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{margin:0;line-height:1.2;letter-spacing:-.01em}
a{color:var(--primary);text-decoration:none}
img{max-width:100%;height:auto}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.ic{width:1.15em;height:1.15em;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none;vertical-align:-.18em}
.ic.big{width:46px;height:46px;stroke-width:1.5}

/* Boutons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 24px;border-radius:999px;border:0;cursor:pointer;font:600 .95rem var(--font);color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary-2));box-shadow:0 8px 20px rgba(67,56,202,.25);transition:transform .15s,filter .15s}
.btn:hover{transform:translateY(-1px);filter:brightness(1.07)}
.btn.outline{background:var(--surface);color:var(--primary);border:1.5px solid var(--primary);box-shadow:none}
.btn.light{background:#fff;color:var(--primary);box-shadow:none}
.btn.ghost{background:var(--surface);color:var(--text);border:1px solid var(--line);box-shadow:none}
.btn.danger{background:#e11d48;box-shadow:none}
.btn.sm{padding:8px 16px;font-size:.85rem;box-shadow:none}

/* En-tête */
header.site{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 92%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:14px;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.25rem;color:var(--text);letter-spacing:-.02em}
.logo-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;color:#fff;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--primary-2))}
.nav{display:flex;align-items:center;gap:2px;margin-left:26px}
.nav>a,.dd-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:12px;color:var(--text);font:500 .93rem var(--font);background:none;border:0;cursor:pointer;white-space:nowrap}
.nav>a:hover,.dd-btn:hover{background:var(--tint)}
.nav .active{color:var(--primary);font-weight:600}
.dd{position:relative}
.dd-menu{display:none;position:absolute;top:100%;left:0;min-width:230px;padding:8px;background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
.dd:hover .dd-menu,.dd:focus-within .dd-menu,.dd.open .dd-menu{display:block}
.dd-menu a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;color:var(--text);font-weight:500;font-size:.92rem}
.dd-menu a:hover{background:var(--tint)}
.dd-menu .ic{color:var(--primary)}
.bar-actions{display:flex;gap:8px;margin-left:auto}
.icon-btn{display:grid;place-items:center;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--text);cursor:pointer;font-size:1.05rem}
.icon-btn:hover{border-color:var(--primary);color:var(--primary)}
.burger{display:none}
.i-sun{display:none}
[data-theme=dark] .i-sun{display:inline}
[data-theme=dark] .i-moon{display:none}
.searchbar{display:none;border-top:1px solid var(--line);background:var(--surface)}
.searchbar.open{display:block}
.searchbar form{display:flex;gap:10px;padding-top:14px;padding-bottom:14px}
.searchbar input{flex:1;min-width:0;padding:11px 18px;border-radius:999px;border:1px solid var(--line);background:var(--bg);color:var(--text);font:inherit;font-size:.95rem}
.searchbar input:focus{outline:2px solid var(--primary);border-color:transparent}

/* Hero */
.hero{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:20px;align-items:center;margin:26px 0 22px;padding:48px 44px;border-radius:28px;overflow:hidden;background:linear-gradient(135deg,#eef0ff 0%,#f4eeff 55%,#fdf0ff 100%)}
[data-theme=dark] .hero{background:linear-gradient(135deg,#141840 0%,#1a1550 60%,#241250 100%)}
.pill{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:var(--surface);border:1px solid var(--line);font-size:.8rem;font-weight:500;color:var(--primary)}
.pill .dot{width:8px;height:8px;border-radius:50%;background:var(--primary-2)}
.hero h1{margin:18px 0 14px;font-size:clamp(2.2rem,5vw,3.5rem);font-weight:700;line-height:1.08;letter-spacing:-.03em}
.h1-sub{display:block;font-size:.72em;font-weight:600;line-height:1.2;margin-top:8px}
.hero em{font-style:normal;color:var(--primary-2)}
.hero p{margin:0 0 26px;max-width:520px;color:var(--muted);font-size:1.02rem}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-visual{position:relative;min-height:380px}
.hv-blob{position:absolute;inset:6% 4% 0 14%;border-radius:42% 58% 52% 48%/48% 44% 56% 52%;background:linear-gradient(160deg,#5b4be0,#8b5cf6 58%,#e879f9)}
.hv-core{position:absolute;left:50%;top:50%;transform:translate(-45%,-50%);display:grid;place-items:center;width:170px;height:170px;border-radius:50%;background:rgba(255,255,255,.16);border:1.5px solid rgba(255,255,255,.4);color:#fff;font-size:5.5rem}
.hv-core .ic{stroke-width:1.4}
.hv-photo{position:absolute;right:0;bottom:-48px;width:92%;height:auto;object-fit:contain}
.fc{position:absolute;display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:16px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);color:var(--text)}
.fc b{display:block;font-weight:600;font-size:.92rem;line-height:1.25}
.fc small{display:block;color:var(--muted);font-size:.74rem;line-height:1.3}
.fc-ic{display:grid;place-items:center;width:38px;height:38px;border-radius:11px;background:var(--tint);color:var(--primary);font-size:1.1rem;flex:none}
.fc1{top:2%;left:0}
.fc2{top:42%;right:-2%}
.fc3{bottom:4%;left:4%}

/* Tuiles */
.tiles{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;margin:0 0 10px}
.tile{display:block;padding:22px 20px;border-radius:20px;background:var(--surface);border:1px solid var(--line);color:var(--text);text-align:center;transition:transform .18s,box-shadow .18s}
.tile:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.tile-ic{display:inline-grid;place-items:center;width:52px;height:52px;border-radius:15px;background:var(--tint);color:var(--primary);font-size:1.5rem;margin-bottom:12px;flex:none}
.tile h3{font-size:1rem;font-weight:600;margin-bottom:6px}
.tile p{margin:0;color:var(--muted);font-size:.85rem;line-height:1.5}

/* Sections et cartes */
.sec{margin:44px 0}
.sec-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}
.sec-head h2{font-size:1.6rem;font-weight:700;display:flex;align-items:center;gap:12px}
.sec-ic{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:11px;background:var(--tint);color:var(--primary);font-size:1.1rem}
.more{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:.88rem;color:var(--primary)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px}
.card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:20px;overflow:hidden;color:var(--text);transition:transform .18s,box-shadow .18s}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.thumb{position:relative;height:150px;display:grid;place-items:center;overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb>.ic{color:rgba(255,255,255,.95)}
.t-outil{background:linear-gradient(135deg,#4f46e5,#7c3aed)}
.t-prompt{background:linear-gradient(135deg,#9333ea,#ec4899)}
.t-tuto{background:linear-gradient(135deg,#0891b2,#4f46e5)}
.t-actu{background:linear-gradient(135deg,#2563eb,#06b6d4)}
.t-guide{background:linear-gradient(135deg,#7c3aed,#4338ca)}
.badge{position:absolute;top:12px;right:12px;padding:3px 12px;border-radius:999px;font-size:.72rem;font-weight:600;color:#fff}
.b-pop{background:#7c3aed}
.b-new{background:#f59e0b}
.card-body{display:flex;flex-direction:column;flex:1;padding:16px 18px 18px}
.tag{align-self:flex-start;font-size:.7rem;font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:var(--primary);background:var(--tint);padding:2px 10px;border-radius:999px}
.card h3{margin:10px 0 6px;font-size:1.02rem;font-weight:600;line-height:1.35}
.card p{margin:0 0 14px;color:var(--muted);font-size:.86rem;line-height:1.55;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card .more{margin-top:auto;align-self:flex-start;padding:7px 16px;border-radius:999px;border:1.5px solid var(--line);font-size:.82rem;color:var(--primary)}
.card:hover .more{border-color:var(--primary)}

/* Bandeau */
.cta-band{display:flex;align-items:center;gap:22px;margin:46px 0;padding:28px 32px;border-radius:24px;color:#fff;background:linear-gradient(120deg,#4338ca,#7c3aed 70%,#a855f7)}
.cta-band h2{font-size:1.45rem;font-weight:700;margin-bottom:4px}
.cta-band p{margin:0;opacity:.92;font-size:.93rem;max-width:560px}
.cta-ic{display:grid;place-items:center;width:64px;height:64px;border-radius:50%;background:rgba(255,255,255,.18);font-size:1.9rem;flex:none}
.cta-band .btn{margin-left:auto;flex:none}

/* En-tête de page */
.page-head{display:flex;align-items:center;gap:18px;margin:34px 0 10px}
.page-head .tile-ic{margin:0;width:60px;height:60px;font-size:1.7rem}
.page-head h1{font-size:2rem;font-weight:700}
.page-head p{margin:2px 0 0;color:var(--muted)}

/* Article */
.article{max-width:780px;margin:30px auto}
.article h1{font-size:clamp(1.8rem,4.5vw,2.5rem);font-weight:700;line-height:1.2;margin:10px 0 12px}
.crumbs{font-size:.85rem;color:var(--muted)}
.crumbs span{margin:0 4px;opacity:.6}
.meta{display:flex;flex-wrap:wrap;gap:6px 18px;color:var(--muted);font-size:.86rem}
.meta .ic{margin-right:4px}
.cover{width:100%;border-radius:20px}
.prose{font-size:1.04rem;line-height:1.8}
.prose h2{margin:2em 0 .5em;font-size:1.55rem;font-weight:700}
.prose h3{margin:1.6em 0 .4em;font-size:1.2rem;font-weight:600}
.prose img{border-radius:14px}
.prose ul,.prose ol{padding-left:1.3em}
.prose li{margin:.3em 0}
.prose blockquote{margin:1.3em 0;padding:.7em 1.2em;border-left:4px solid var(--primary);background:var(--tint);border-radius:0 14px 14px 0}
.prose table{width:100%;border-collapse:collapse;font-size:.93rem;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--line);padding:9px 12px;text-align:left}
.prose th{background:var(--tint)}
.promptbox{margin:24px 0;border:1px solid var(--line);border-radius:20px;background:var(--surface);overflow:hidden}
.promptbox-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 16px;border-bottom:1px solid var(--line);font-weight:600;background:var(--tint)}
.promptbox-head>span{display:inline-flex;align-items:center;gap:8px;color:var(--primary)}
.promptbox pre{margin:0;padding:18px;white-space:pre-wrap;word-break:break-word;font:.93rem/1.7 ui-monospace,Menlo,Consolas,monospace}
.cta{margin:24px 0}
.ad{margin:28px 0;text-align:center;min-height:50px}

/* Pagination, divers */
.pager{display:flex;gap:8px;justify-content:center;margin:36px 0;flex-wrap:wrap}
.pager a,.pager span{padding:8px 15px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--text);font-weight:600}
.pager span{background:var(--primary);color:#fff;border-color:var(--primary)}
.empty{padding:44px 20px;text-align:center;color:var(--muted);background:var(--surface);border:1px dashed var(--line);border-radius:20px}

/* Pied de page */
.foot-site{margin-top:70px;background:var(--navy);color:#c9cdf0;padding:48px 0 22px}
.foot-site .logo{color:#fff}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:30px}
.foot-brand p{margin:14px 0 0;max-width:300px;font-size:.9rem;color:#a3a9d6}
.foot-site h4{color:#fff;font-size:.95rem;font-weight:600;margin-bottom:12px}
.foot-site a{display:block;color:#a3a9d6;font-size:.88rem;padding:4px 0}
.foot-site a:hover{color:#fff}
.foot-site .logo{display:flex;padding:0}
.foot-copy{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-top:34px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);font-size:.82rem;color:#8a90c4}
.heart{color:#f472b6;fill:#f472b6;vertical-align:-.15em}

/* Administration (ancien panneau PHP) */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin:22px 0}
.form label{display:block;font-weight:600;margin:14px 0 6px;font-size:.92rem}
.form input[type=text],.form input[type=password],.form select,.form textarea{width:100%;padding:10px 12px;border-radius:12px;border:1px solid var(--line);background:var(--bg);color:var(--text);font:inherit}
.form textarea{min-height:120px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.92rem}
.form textarea.big{min-height:380px}
.toolbar{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:6px}
.toolbar button{padding:4px 10px;border-radius:8px;border:1px solid var(--line);background:var(--surface);color:var(--text);cursor:pointer;font-weight:600}
table.list{width:100%;border-collapse:collapse}
table.list th,table.list td{padding:10px 8px;border-bottom:1px solid var(--line);text-align:left;font-size:.92rem}
.flex{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.notice{padding:10px 14px;border-radius:10px;background:color-mix(in srgb,#e11d48 14%,transparent);color:#e11d48;margin-bottom:12px}

/* Mobile */
@media (max-width:980px){
  .hero{grid-template-columns:1fr;padding:34px 24px}
  .hero-visual{display:none}
  .tiles{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tiles .tile:last-child:nth-child(odd){grid-column:1/-1}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .burger{display:grid}
  .nav{display:none;position:absolute;top:72px;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;margin:0;padding:12px 20px 18px;background:var(--bg);border-bottom:1px solid var(--line)}
  .nav.open{display:flex}
  .dd-btn{display:none}
  .dd-menu{display:block;position:static;border:0;box-shadow:none;padding:0;background:none}
  .dd-menu a{padding:8px 14px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:24px}
  .cta-band .btn{margin-left:0}
}
@media (max-width:560px){
  .tiles{gap:10px}
  .tile{padding:18px 12px}
  .sec-head h2{font-size:1.3rem}
  .foot-grid{grid-template-columns:1fr}
  .page-head h1{font-size:1.6rem}
}