/* ===== Design tokens ===== */
:root{
  --primary:#d97706;        /* orange : accents décoratifs, non-texte (contraste 3:1 mini) */
  --primary-text:#b45309;   /* orange foncé : texte/liens sur fond clair (contraste ≥ 4.5:1) */
  --accent:#f59e0b;
  --ink:#1e293b;
  --ink-soft:#52606d;
  --bg:#fefaf3;
  --surface:#ffffff;
  --border:rgba(180,83,9,.16);
  --code-bg:#1e293b;
  --code-text:#e2e8f0;
  --focus:#2563eb;
  --radius:16px;
  --container:1180px;
  --shadow:0 10px 30px rgba(30,41,59,.08);
}
html.dark{
  --ink:#f1f5f9;
  --ink-soft:#b6c2cf;
  --bg:#0f172a;
  --surface:#16213a;
  --border:rgba(245,158,11,.22);
  --code-bg:#0b1120;
  --shadow:0 10px 30px rgba(0,0,0,.4);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}
body{
  margin:0;
  font:16px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
}
h1,h2,h3,h4{line-height:1.25;font-weight:800;margin:0 0 .6em}
p{margin:0 0 1em}
a{color:var(--primary-text)}
a:not(.btn):not(.card-link){text-underline-offset:.15em}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:4px}
img,svg{max-width:100%}
.icon{width:1.2em;height:1.2em;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;vertical-align:-0.2em;flex-shrink:0}

.container{max-width:var(--container);margin-inline:auto;padding-inline:20px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

.skip-link{
  position:absolute;left:50%;transform:translate(-50%,-140%);
  background:var(--ink);color:#fff;padding:12px 22px;border-radius:0 0 10px 10px;
  z-index:1000;transition:transform .2s ease;font-weight:700;text-decoration:none;
}
.skip-link:focus{transform:translate(-50%,0)}

/* ===== Header / hero ===== */
header.hero{
  background:linear-gradient(135deg,var(--ink) 0%,#0b1220 100%);
  color:#fff;padding:88px 0 72px;text-align:center;
}
header.hero h1{font-size:clamp(2rem,5vw,3.2rem);margin-bottom:.5rem}
header.hero h1 .brand-mark{color:var(--accent)}
header.hero p{font-size:clamp(1.05rem,2vw,1.3rem);max-width:640px;margin:0 auto 2rem;color:#d7dee8}
.btn{
  display:inline-flex;align-items:center;gap:.55em;
  background:var(--primary-text);color:#fff;font-weight:700;
  padding:14px 30px;border-radius:999px;text-decoration:none;border:none;cursor:pointer;
  font-size:1.02rem;box-shadow:0 6px 22px rgba(180,83,9,.35);transition:transform .2s ease, box-shadow .2s ease;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(180,83,9,.45)}
.btn-ghost{background:transparent;border:2px solid rgba(255,255,255,.4);color:#fff;box-shadow:none}

/* ===== Nav ===== */
nav.site-nav{
  position:sticky;top:0;z-index:100;background:color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.nav-inner{display:flex;align-items:center;gap:18px;padding-block:12px}
.nav-brand{font-weight:800;font-size:1.2rem;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:.4em;margin-right:auto}
.nav-brand .icon{color:var(--primary-text)}
.nav-links{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.nav-links a{
  display:block;padding:9px 14px;border-radius:10px;color:var(--ink-soft);
  text-decoration:none;font-weight:600;font-size:.95rem;white-space:nowrap;
}
.nav-links a:hover,.nav-links a[aria-current="true"]{background:var(--border);color:var(--primary-text)}
.nav-toggle{
  display:none;background:none;border:2px solid var(--border);border-radius:10px;
  padding:8px;color:var(--ink);cursor:pointer;
}
.theme-toggle{
  background:none;border:2px solid var(--border);border-radius:999px;width:42px;height:42px;
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink);cursor:pointer;flex-shrink:0;
}
html.dark .icon-sun{display:inline-block}
html.dark .icon-moon{display:none}
.icon-sun{display:none}

@media (max-width:860px){
  .nav-toggle{display:inline-flex;align-items:center}
  .nav-links{
    position:fixed;inset:64px 12px auto 12px;background:var(--surface);border:1px solid var(--border);
    border-radius:var(--radius);flex-direction:column;padding:10px;box-shadow:var(--shadow);
    transform:translateY(-12px);opacity:0;pointer-events:none;transition:.2s ease;
  }
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-links a{padding:14px}
}

/* ===== Sections ===== */
section{padding:76px 0}
section:nth-of-type(even){background:var(--surface)}
.eyebrow{color:var(--primary-text);font-weight:700;letter-spacing:.04em;text-transform:uppercase;font-size:.82rem}
.section-title{font-size:clamp(1.6rem,3.4vw,2.3rem);position:relative;display:inline-block}
.section-lede{color:var(--ink-soft);font-size:1.08rem;max-width:70ch;margin-bottom:2.6rem}

.layout{display:grid;grid-template-columns:1fr;gap:40px}
@media (min-width:960px){.layout{grid-template-columns:2.4fr 1fr}}

.grid{display:grid;gap:22px}
.grid-2{grid-template-columns:1fr}
.grid-3{grid-template-columns:1fr}
.grid-4{grid-template-columns:1fr}
@media (min-width:640px){.grid-2{grid-template-columns:1fr 1fr}.grid-4{grid-template-columns:1fr 1fr}}
@media (min-width:860px){.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}}

.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;height:100%;
}
html.dark .card{background:#111c33}
.card .icon-badge{
  width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;margin-bottom:16px;
}
.card h3,.card h4{font-size:1.15rem;margin-bottom:.5rem}
.card ul{margin:0;padding-left:0;list-style:none}
.card ul li{padding:6px 0 6px 26px;position:relative}
.card ul li::before{content:"";position:absolute;left:0;top:12px;width:9px;height:9px;border-radius:50%;background:var(--primary)}

/* TOC */
.toc{
  position:sticky;top:96px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:20px;
}
.toc h2{font-size:1rem;text-transform:uppercase;letter-spacing:.04em;margin-bottom:.8rem}
.toc ol{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.toc a{display:block;padding:8px 10px;border-radius:8px;text-decoration:none;color:var(--ink-soft);font-weight:600;font-size:.94rem}
.toc a:hover,.toc a[aria-current="true"]{background:var(--border);color:var(--primary-text)}

/* Code blocks */
pre{
  background:var(--code-bg);color:var(--code-text);border-radius:14px;padding:20px;
  overflow-x:auto;position:relative;margin:1.2em 0;font-size:.92rem;
}
pre code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;white-space:pre}
.copy-btn{
  position:absolute;top:10px;right:10px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  color:#fff;padding:6px 12px;border-radius:8px;font-size:.8rem;cursor:pointer;display:inline-flex;gap:6px;align-items:center;
}
.copy-btn:hover{background:rgba(255,255,255,.2)}
.copy-btn[data-copied="true"]{background:#16a34a;border-color:#16a34a}
code:not(pre code){
  background:var(--border);color:var(--primary-text);padding:2px 7px;border-radius:6px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em;
}

.callout{border-left:4px solid var(--primary);background:var(--border);padding:14px 18px;border-radius:0 12px 12px 0;font-size:.95rem}
.callout strong{color:var(--primary-text)}

/* Details / accordion (natif, accessible sans JS) */
.acc-item{border:1px solid var(--border);border-radius:14px;margin-bottom:12px;overflow:hidden;background:var(--surface)}
.acc-item summary{
  padding:18px 22px;font-weight:700;font-size:1.05rem;cursor:pointer;list-style:none;
  display:flex;align-items:center;gap:12px;
}
.acc-item summary::-webkit-details-marker{display:none}
.acc-item summary .chev{margin-left:auto;transition:transform .2s ease}
.acc-item[open] summary .chev{transform:rotate(180deg)}
.acc-item summary:hover{background:var(--border)}
.acc-body{padding:0 22px 22px}

.do-dont{display:grid;gap:22px;grid-template-columns:1fr}
@media (min-width:700px){.do-dont{grid-template-columns:1fr 1fr}}
.do-dont h4{display:flex;align-items:center;gap:.5em}
.do-dont .yes h4{color:#15803d}
.do-dont .no h4{color:#b91c1c}

/* Resource cards */
.resource{
  display:flex;gap:16px;align-items:flex-start;padding:20px;border:1px solid var(--border);
  border-radius:14px;text-decoration:none;color:inherit;background:var(--surface);height:100%;
}
.resource:hover{border-color:var(--primary)}
.resource .icon-badge{width:44px;height:44px;border-radius:11px;font-size:.9rem}
.resource h3{font-size:1.02rem;margin-bottom:.2rem}
.resource p{margin:0;color:var(--ink-soft);font-size:.92rem}

/* CTA band */
.cta-band{
  border-radius:24px;padding:48px 32px;text-align:center;
  background:linear-gradient(135deg,var(--ink),#0b1220);color:#fff;
}
.cta-band h2{color:#fff}
.cta-band p{color:#d7dee8;max-width:60ch;margin-inline:auto}

/* dialog (modal) natif */
dialog{border:none;border-radius:18px;padding:0;max-width:420px;width:92vw;box-shadow:var(--shadow)}
dialog::backdrop{background:rgba(15,23,42,.55)}
.dialog-inner{padding:26px}
.dialog-inner h2{font-size:1.2rem}
.dialog-close{position:absolute;top:14px;right:14px;background:none;border:none;font-size:1.4rem;line-height:1;cursor:pointer;color:var(--ink-soft)}
.expert-link{display:flex;gap:12px;align-items:center;padding:12px;border-radius:10px;background:var(--border);text-decoration:none;color:var(--ink);margin-bottom:10px}

/* Footer */
footer{background:var(--ink);color:#c9d2de;padding:56px 0 26px;margin-top:0}
html.dark footer{background:#080e1c}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:760px){.footer-grid{grid-template-columns:2fr 1fr 1fr 2fr}}
footer h2{font-size:1.3rem;color:#fff}
footer h3{font-size:.95rem;color:#fff;margin-bottom:.8rem}
footer a{color:#c9d2de;text-decoration:none;display:block;padding:5px 0;font-size:.94rem}
footer a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:22px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:.86rem;color:#93a0b3;
}
.footer-bottom a{display:inline;padding:0}

/* ===== Ajouts v2 : CWV, a11y, pages internes ===== */
:root{color-scheme:light dark}
html:not(.dark){color-scheme:light}html.dark{color-scheme:dark}
body{text-rendering:optimizeLegibility;overflow-wrap:break-word}
section[id],h2[id]{scroll-margin-top:84px}
main>section:not(:first-of-type){content-visibility:auto;contain-intrinsic-size:auto 700px}
.nav-links a,.toc a,.footer-bottom a,footer a{min-height:44px;display:inline-flex;align-items:center}
footer a{display:flex}.toc a{display:flex}
.nav-toggle,.theme-toggle{min-width:44px;min-height:44px}
.copy-btn{min-height:32px}
.page-head{background:linear-gradient(135deg,var(--ink),#0b1220);color:#fff;padding:56px 0 44px}
.page-head h1{font-size:clamp(1.8rem,4vw,2.6rem);margin-bottom:.4rem}
.page-head p{color:#d7dee8;max-width:70ch;margin:0}
.breadcrumb{font-size:.9rem;margin:0 0 14px;color:#c9d2de}.breadcrumb a{color:#fcd9a8}
.prose{max-width:75ch;padding-block:56px}.prose h2{margin-top:1.8em;font-size:1.5rem}
.prose table,.table-wrap table{width:100%;border-collapse:collapse;font-size:.95rem}
.table-wrap{overflow-x:auto;margin:1.2em 0}
th,td{border:1px solid var(--border);padding:10px 12px;text-align:left;vertical-align:top}
th{background:var(--border)}
.todo{background:#fef3c7;color:#451a03;padding:1px 6px;border-radius:4px}
.updated{color:var(--ink-soft);font-size:.9rem}
@media (forced-colors:active){.btn,.card,.resource{border:1px solid CanvasText}}
@media print{nav,.skip-link,.theme-toggle,footer,.copy-btn{display:none!important}body{background:#fff;color:#000}}