/* =====================================================================
   les-definitions.fr — Design system "Référence / Dictionnaire"
   Direction unique cobalt : encyclopédique, A→Z, scannable.
   Familjen Grotesk (display) + Public Sans (body).
   ===================================================================== */

:root{
  --ink:#161a22;
  --ink-soft:#3c4658;
  --ink-faint:#697587;
  --paper:#fbfcfd;
  --paper-2:#f1f4f9;
  --line:#e4e9f1;
  --line-strong:#d2dae6;
  --cobalt:#2353c7;
  --cobalt-700:#1b429f;
  --cobalt-050:#eef3fd;
  --cobalt-100:#dbe6fb;
  --amber:#b5760a;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(22,26,34,.05),0 1px 3px rgba(22,26,34,.04);
  --shadow-md:0 6px 24px rgba(27,66,159,.08),0 2px 6px rgba(22,26,34,.05);
  --maxw:1120px;
  --font-display:'Familjen Grotesk',system-ui,-apple-system,Segoe UI,sans-serif;
  --font-body:'Public Sans',system-ui,-apple-system,Segoe UI,sans-serif;
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:84px}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--font-body);font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--cobalt);text-decoration:none}
a:hover{color:var(--cobalt-700)}
h1,h2,h3,h4{font-family:var(--font-display);color:var(--ink);line-height:1.15;letter-spacing:-.012em;margin:0 0 .4em}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* a11y */
.skip-link{position:absolute;left:-999px;top:0;background:var(--cobalt);color:#fff;padding:10px 16px;border-radius:0 0 8px 0;z-index:9999}
.skip-link:focus{left:0}
:focus-visible{outline:3px solid var(--cobalt);outline-offset:2px;border-radius:4px}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(251,252,253,.88);backdrop-filter:saturate(160%) blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--font-display);font-weight:700;font-size:1.18rem;color:var(--ink);letter-spacing:-.02em;white-space:nowrap}
.brand:hover{color:var(--ink)}
.brand-mark{width:34px;height:34px;border-radius:9px;background:var(--cobalt);color:#fff;display:grid;place-items:center;font-family:Georgia,serif;font-weight:700;font-size:1.25rem;box-shadow:var(--shadow-sm)}
.brand-mark span{transform:translateY(-1px)}
.nav{margin-left:auto;display:flex;align-items:center;gap:6px}
.nav a{padding:8px 13px;border-radius:9px;color:var(--ink-soft);font-weight:600;font-size:.95rem;transition:background .18s var(--ease),color .18s}
.nav a:hover{background:var(--cobalt-050);color:var(--cobalt-700)}
.nav .nav-cta{background:var(--cobalt);color:#fff}
.nav .nav-cta:hover{background:var(--cobalt-700);color:#fff}
.has-sub{position:relative}
.has-sub>button{font:inherit;font-weight:600;font-size:.95rem;color:var(--ink-soft);background:none;border:0;padding:8px 13px;border-radius:9px;cursor:pointer;display:flex;align-items:center;gap:6px}
.has-sub>button:hover{background:var(--cobalt-050);color:var(--cobalt-700)}
.has-sub>button svg{transition:transform .2s var(--ease)}
.has-sub[aria-expanded="true"]>button svg{transform:rotate(180deg)}
.submenu{position:absolute;top:calc(100% + 8px);left:0;min-width:240px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-md);padding:8px;opacity:0;visibility:hidden;transform:translateY(-6px);transition:.18s var(--ease)}
.has-sub:hover .submenu,.has-sub:focus-within .submenu,.has-sub[aria-expanded="true"] .submenu{opacity:1;visibility:visible;transform:translateY(0)}
.submenu a{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:9px 12px;border-radius:8px;color:var(--ink-soft);font-weight:600;font-size:.92rem}
.submenu a:hover{background:var(--cobalt-050);color:var(--cobalt-700)}
.submenu .count{font-family:var(--font-display);font-size:.72rem;font-weight:700;color:var(--cobalt);background:var(--cobalt-050);border:1px solid var(--cobalt-100);padding:1px 8px;border-radius:20px}
.nav-toggle{display:none;background:none;border:1px solid var(--line-strong);border-radius:9px;width:42px;height:40px;cursor:pointer;align-items:center;justify-content:center;color:var(--ink)}

@media(max-width:860px){
  .nav-toggle{display:flex}
  .nav{position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;background:#fff;border-bottom:1px solid var(--line);padding:10px 16px 16px;box-shadow:var(--shadow-md);display:none}
  .nav.open{display:flex}
  .nav a,.has-sub>button{width:100%}
  .submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:4px 0 4px 10px;min-width:0}
}

/* ---------- Reveal motion ----------
   No-JS / no-trap: content is visible by default. The animation is opt-in:
   only when <html class="js-reveal"> is set AND the element is not yet .in,
   it starts hidden. This guarantees content is never permanently invisible. */
.reveal{opacity:1;transform:none}
.js-reveal .reveal:not(.in){opacity:0;transform:translateY(16px)}
.js-reveal .reveal.in{opacity:1;transform:none;transition:opacity .6s var(--ease),transform .6s var(--ease)}
.js-reveal .reveal[data-d="1"].in{transition-delay:.05s}
.js-reveal .reveal[data-d="2"].in{transition-delay:.1s}
.js-reveal .reveal[data-d="3"].in{transition-delay:.15s}
@media(prefers-reduced-motion:reduce){
  .js-reveal .reveal:not(.in){opacity:1!important;transform:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* ---------- Hero ---------- */
.hero{padding:64px 0 30px;background:
  radial-gradient(900px 360px at 78% -10%,var(--cobalt-050),transparent 70%),
  var(--paper)}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-display);font-weight:600;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--cobalt);background:#fff;border:1px solid var(--cobalt-100);padding:6px 13px;border-radius:30px;box-shadow:var(--shadow-sm)}
.hero h1{font-size:clamp(2.1rem,5.4vw,3.5rem);font-weight:700;margin:18px 0 14px;max-width:18ch}
.hero p.lead{font-size:clamp(1.05rem,2.2vw,1.25rem);color:var(--ink-soft);max-width:60ch;margin:0 0 26px}
.search{display:flex;gap:10px;max-width:560px;background:#fff;border:1px solid var(--line-strong);border-radius:14px;padding:7px 7px 7px 16px;box-shadow:var(--shadow-md);transition:border-color .2s,box-shadow .2s}
.search:focus-within{border-color:var(--cobalt);box-shadow:0 0 0 4px var(--cobalt-050),var(--shadow-md)}
.search svg{flex:0 0 auto;align-self:center;color:var(--ink-faint)}
.search input{flex:1;border:0;outline:0;font:inherit;font-size:1.02rem;color:var(--ink);background:transparent;padding:9px 0}
.search button{flex:0 0 auto;background:var(--cobalt);color:#fff;border:0;border-radius:10px;font:inherit;font-weight:700;padding:0 20px;cursor:pointer;transition:background .18s}
.search button:hover{background:var(--cobalt-700)}
.hero-stats{display:flex;flex-wrap:wrap;gap:22px;margin-top:22px;color:var(--ink-faint);font-size:.92rem}
.hero-stats b{font-family:var(--font-display);color:var(--ink);font-size:1.05rem}

/* ---------- A–Z index bar ---------- */
.azbar{position:sticky;top:68px;z-index:90;background:rgba(251,252,253,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);padding:11px 0}
.azbar-inner{display:flex;flex-wrap:wrap;gap:5px;justify-content:center}
.azbar a,.azbar span{font-family:var(--font-display);font-weight:600;font-size:.92rem;width:33px;height:33px;display:grid;place-items:center;border-radius:8px;color:var(--ink-soft);transition:.16s var(--ease)}
.azbar a:hover{background:var(--cobalt);color:#fff;transform:translateY(-2px)}
.azbar span{color:var(--line-strong);cursor:default}

/* ---------- Glossary sections ---------- */
.glossary{padding:40px 0 60px}
.letter-group{margin-bottom:38px;scroll-margin-top:120px}
.letter-head{display:flex;align-items:center;gap:16px;margin-bottom:18px}
.letter-badge{font-family:var(--font-display);font-weight:700;font-size:1.5rem;color:#fff;background:var(--cobalt);width:50px;height:50px;border-radius:13px;display:grid;place-items:center;box-shadow:var(--shadow-sm)}
.letter-head .rule{flex:1;height:1px;background:var(--line)}
.letter-head .ct{font-size:.85rem;color:var(--ink-faint);font-family:var(--font-display);font-weight:600}
.term-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}

/* term card */
.term-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 18px 16px;box-shadow:var(--shadow-sm);transition:border-color .2s var(--ease),box-shadow .2s var(--ease),transform .2s var(--ease)}
.term-card:hover{border-color:var(--cobalt-100);box-shadow:var(--shadow-md);transform:translateY(-3px)}
.term-card .cat{display:inline-flex;align-self:flex-start;font-size:.72rem;font-weight:700;letter-spacing:.03em;text-transform:uppercase;color:var(--cobalt-700);background:var(--cobalt-050);border:1px solid var(--cobalt-100);padding:3px 9px;border-radius:20px;margin-bottom:10px}
.term-card h3{font-size:1.16rem;margin:0 0 7px;letter-spacing:-.01em}
.term-card h3 a{color:var(--ink)}
.term-card h3 a:hover{color:var(--cobalt)}
.term-card p{margin:0 0 14px;color:var(--ink-soft);font-size:.95rem;line-height:1.55;flex:1}
.term-card .more{font-family:var(--font-display);font-weight:600;font-size:.9rem;color:var(--cobalt);display:inline-flex;align-items:center;gap:6px}
.term-card .more::after{content:"→";transition:transform .2s var(--ease)}
.term-card:hover .more::after{transform:translateX(4px)}

/* section heads */
.sec-head{text-align:center;max-width:62ch;margin:0 auto 30px}
.sec-head h2{font-size:clamp(1.6rem,3.4vw,2.1rem)}
.sec-head p{color:var(--ink-soft);margin:.3em 0 0}
.divider-tools{padding:18px 0}

/* ---------- Definition (single) ---------- */
.crumbs{padding:16px 0;border-bottom:1px solid var(--line);font-size:.86rem;color:var(--ink-faint)}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;align-items:center}
.crumbs a{color:var(--ink-soft);font-weight:600}
.crumbs a:hover{color:var(--cobalt)}
.crumbs li:not(:last-child)::after{content:"›";margin-left:8px;color:var(--line-strong)}
.crumbs [aria-current]{color:var(--ink)}

.def-wrap{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:48px;padding:40px 0 64px;align-items:start}
@media(max-width:920px){.def-wrap{grid-template-columns:1fr;gap:30px}}
.def-main{min-width:0}
.def-eyebrow{font-family:var(--font-display);font-weight:600;text-transform:uppercase;letter-spacing:.1em;font-size:.78rem;color:var(--cobalt)}
.def-title{font-size:clamp(2rem,5vw,2.85rem);font-weight:700;margin:10px 0 8px}
.def-meta{display:flex;flex-wrap:wrap;gap:8px 16px;color:var(--ink-faint);font-size:.88rem;align-items:center;margin-bottom:26px}
.def-meta .chip{font-weight:600;color:var(--cobalt-700);background:var(--cobalt-050);border:1px solid var(--cobalt-100);padding:2px 10px;border-radius:20px}
.def-meta .author{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--ink-soft)}
.def-meta .author img{width:26px;height:26px;border-radius:50%}

/* article body */
.def-body{font-size:1.075rem;line-height:1.78;color:var(--ink)}
.def-body>*+*{margin-top:1.1em}
.def-body h2{font-size:1.5rem;margin:1.7em 0 .5em;padding-top:.2em}
.def-body h3{font-size:1.2rem;margin:1.4em 0 .4em}
.def-body a{font-weight:600;text-decoration:underline;text-decoration-color:var(--cobalt-100);text-underline-offset:3px}
.def-body a:hover{text-decoration-color:var(--cobalt)}
.def-body strong{color:var(--ink);font-weight:700}
.def-body ul,.def-body ol{padding-left:1.3em}.def-body li{margin:.35em 0}
.def-body blockquote{margin:1.4em 0;padding:14px 20px;border-left:4px solid var(--cobalt);background:var(--cobalt-050);border-radius:0 10px 10px 0;color:var(--ink-soft)}
.def-body img{border-radius:12px;border:1px solid var(--line);margin:1.4em 0}
.def-body code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9em;background:var(--paper-2);border:1px solid var(--line);padding:1px 6px;border-radius:6px}

/* definition callout (lead) */
.def-callout{border:1px solid var(--cobalt-100);background:linear-gradient(180deg,var(--cobalt-050),#fff);border-radius:14px;padding:20px 22px;margin:0 0 28px}
.def-callout .label{font-family:var(--font-display);font-weight:700;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--cobalt);display:flex;align-items:center;gap:8px;margin-bottom:6px}
.def-callout p{margin:0;font-size:1.12rem;color:var(--ink);line-height:1.6}

/* "à retenir" box */
.keybox{border:1px solid var(--line);border-left:4px solid var(--amber);background:#fffdf7;border-radius:0 12px 12px 0;padding:16px 20px;margin:28px 0}
.keybox .label{font-family:var(--font-display);font-weight:700;font-size:.8rem;letter-spacing:.06em;text-transform:uppercase;color:var(--amber);margin-bottom:6px}
.keybox p{margin:0;color:var(--ink-soft)}

/* sidebar */
.def-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
@media(max-width:920px){.def-side{position:static}}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow-sm)}
.side-card h4{font-size:.82rem;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-faint);margin:0 0 12px;font-weight:700}
.side-card ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.side-card li a{display:block;padding:8px 10px;border-radius:8px;color:var(--ink-soft);font-weight:600;font-size:.94rem;transition:.15s var(--ease)}
.side-card li a:hover{background:var(--cobalt-050);color:var(--cobalt-700)}
.related-pills{display:flex;flex-wrap:wrap;gap:7px}
.related-pills a{font-size:.85rem;font-weight:600;color:var(--cobalt-700);background:var(--cobalt-050);border:1px solid var(--cobalt-100);padding:5px 11px;border-radius:20px}
.related-pills a:hover{background:var(--cobalt);color:#fff;border-color:var(--cobalt)}

.def-cta{margin-top:34px;background:var(--ink);color:#fff;border-radius:16px;padding:28px 30px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px}
.def-cta h3{color:#fff;margin:0 0 4px;font-size:1.25rem}
.def-cta p{margin:0;color:#c4ccd9}
.def-cta a{flex:0 0 auto;background:var(--cobalt);color:#fff;font-family:var(--font-display);font-weight:700;padding:12px 22px;border-radius:11px;transition:background .18s}
.def-cta a:hover{background:#3a68d6;color:#fff}

/* prev/next nav */
.def-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:30px}
@media(max-width:600px){.def-nav{grid-template-columns:1fr}}
.def-nav a{border:1px solid var(--line);border-radius:12px;padding:14px 16px;background:#fff;transition:.18s var(--ease)}
.def-nav a:hover{border-color:var(--cobalt-100);box-shadow:var(--shadow-sm)}
.def-nav .dir{font-size:.74rem;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-faint);font-weight:700}
.def-nav .t{display:block;margin-top:4px;font-family:var(--font-display);font-weight:600;color:var(--ink)}
.def-nav .next{text-align:right}

/* ---------- Page (legal / about) ---------- */
.page-hero{padding:54px 0 18px}
.page-hero h1{font-size:clamp(2rem,5vw,2.8rem)}
.page-body{padding:10px 0 64px}
.prose{max-width:74ch;font-size:1.05rem;line-height:1.75}
.prose>*+*{margin-top:1.05em}
.prose h2{font-size:1.5rem;margin:1.6em 0 .4em}
.prose h3{font-size:1.2rem;margin:1.3em 0 .3em}
.prose a{font-weight:600;text-decoration:underline;text-underline-offset:3px}
.prose ul{padding-left:1.3em}.prose li{margin:.3em 0}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#c8d0dd;margin-top:40px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding:54px 0 40px}
@media(max-width:760px){.footer-top{grid-template-columns:1fr;gap:30px}}
.footer-brand{display:flex;align-items:center;gap:11px;font-family:var(--font-display);font-weight:700;font-size:1.2rem;color:#fff;margin-bottom:14px}
.footer-brand .brand-mark{background:var(--cobalt)}
.footer-about{color:#9aa6b6;max-width:42ch;font-size:.95rem}
.footer-col h4{color:#fff;font-size:.82rem;letter-spacing:.07em;text-transform:uppercase;margin:0 0 16px}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.footer-col a{color:#aab4c4;font-weight:500;font-size:.95rem;transition:color .15s}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;font-size:.85rem;color:#8b97a8}
.footer-bottom .stats{display:flex;gap:10px;flex-wrap:wrap}
.footer-bottom .stats b{color:#cdd5e0;font-family:var(--font-display)}

/* ---------- 404 / search ---------- */
.simple-hero{padding:70px 0 30px;text-align:center}
.simple-hero h1{font-size:clamp(2rem,6vw,3rem)}
.search-results{padding:20px 0 60px}
.result{border-bottom:1px solid var(--line);padding:18px 0}
.result h3{margin:0 0 4px;font-size:1.2rem}
.result .cat{font-size:.74rem;text-transform:uppercase;letter-spacing:.04em;color:var(--cobalt-700);font-weight:700}
.result p{margin:.3em 0 0;color:var(--ink-soft)}

/* AdSense slot wrapper */
.ad-slot{margin:30px auto;text-align:center;min-height:1px;max-width:728px;overflow:hidden}
.ad-slot--inarticle{margin:34px 0}

@media(max-width:520px){
  body{font-size:16px}
  .hero{padding:44px 0 22px}
  .term-grid{grid-template-columns:1fr}
}