/* ═══════════════════════════════════════════════════════════════════
   pays_bas.css — Thème : De Stijl / Mondrian, couleurs primaires, grille
   ═══════════════════════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Archivo+Black&family=Archivo:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root{
  --ink:#0a0a0a;
  --paper:#fbfbf7;
  --paper-2:#f0f0ea;
  --nl-red:#ae1c28;           /* rouge drapeau */
  --nl-blue:#21468b;          /* bleu drapeau */
  --nl-yellow:#fecc00;        /* jaune primary */
  --line:rgba(10,10,10,.12);
  --muted:#5a5a5a;
  --fd:'Archivo Black',Impact,sans-serif;
  --fb:'Archivo',system-ui,sans-serif;
  --fm:'JetBrains Mono',monospace;
  --sw:280px;--r:0px;          /* angles nets - De Stijl */
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--fb);background:var(--paper);color:var(--ink);font-size:16.5px;line-height:1.75;
  background-image:
    linear-gradient(0deg,transparent 98%,rgba(10,10,10,.04) 98%),
    linear-gradient(90deg,transparent 98%,rgba(10,10,10,.04) 98%);
  background-size:48px 48px;background-attachment:fixed;
}

.progress-bar{position:fixed;top:0;left:0;height:5px;width:0;z-index:200;
  background:linear-gradient(90deg,var(--nl-red) 33%,#fff 33%,#fff 66%,var(--nl-blue) 66%)}

.page-layout{display:flex;min-height:100vh}
.sidebar{width:var(--sw);flex-shrink:0;background:#fff;border-right:4px solid var(--ink);
  position:sticky;top:0;height:100vh;overflow-y:auto;display:flex;flex-direction:column}
.sidebar-header{padding:28px 22px 20px;background:var(--nl-red);color:#fff;
  border-bottom:4px solid var(--ink);position:relative}
.sidebar-header::after{content:'';position:absolute;right:22px;top:28px;width:40px;height:40px;background:var(--nl-yellow);border:3px solid var(--ink)}
.sidebar-back{display:block;font-family:var(--fm);font-size:.62rem;letter-spacing:.18em;font-weight:700;
  text-decoration:none;color:rgba(255,255,255,.8);margin-bottom:12px;text-transform:uppercase}
.sidebar-back:hover{color:#fff}
.sidebar-title{font-family:var(--fd);font-size:2rem;line-height:1;color:#fff;text-transform:uppercase;letter-spacing:-.01em}
.toc-nav{padding:14px 0;flex:1}
.toc-section-label{font-family:var(--fm);font-size:.58rem;letter-spacing:.22em;text-transform:uppercase;font-weight:700;
  color:var(--muted);padding:12px 22px 6px}
.toc-link{display:block;padding:7px 22px;color:var(--ink);text-decoration:none;
  font-family:var(--fb);font-size:.9rem;font-weight:500;border-left:4px solid transparent;transition:all .15s}
.toc-link:hover,.toc-link.active{background:var(--nl-yellow);border-left-color:var(--ink);color:var(--ink);font-weight:700}
.sidebar-nav{padding:14px 22px 22px;border-top:4px solid var(--ink);background:var(--nl-blue);color:#fff}
.sidebar-nav p{font-family:var(--fm);font-size:.58rem;letter-spacing:.2em;text-transform:uppercase;font-weight:700;
  color:rgba(255,255,255,.7);margin:10px 0 8px}
.sidebar-nav a{display:block;text-decoration:none;color:rgba(255,255,255,.85);padding:3px 0;font-size:.88rem;font-weight:400}
.sidebar-nav a:hover{color:var(--nl-yellow)}
.sidebar-nav a.current{color:var(--nl-yellow);font-weight:700}

.main{flex:1;min-width:0;max-width:900px;padding:0 60px 100px}
.page-header{padding:48px 0 30px;margin-bottom:44px;position:relative;
  border-top:6px solid var(--nl-red);border-bottom:6px solid var(--nl-blue)}
.page-header::before{content:'';position:absolute;right:0;top:48px;width:80px;height:80px;background:var(--nl-yellow);border:4px solid var(--ink)}
.subject-tag{font-family:var(--fm);font-size:.62rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--nl-red);margin-bottom:16px;font-weight:700}
.page-title{font-family:var(--fd);font-size:4.2rem;line-height:.9;color:var(--ink);text-transform:uppercase;letter-spacing:-.02em}
.page-title .sub{display:block;font-size:1.05rem;font-family:var(--fm);letter-spacing:.08em;
  color:var(--nl-blue);margin-top:14px;font-weight:500;font-family:var(--fm);text-transform:none}
.page-intro{margin-top:18px;max-width:640px;color:var(--muted);font-size:1.02rem}

.section{margin-bottom:56px;scroll-margin-top:24px}
.section-title{display:flex;align-items:center;gap:14px;font-family:var(--fd);font-size:1.9rem;
  text-transform:uppercase;letter-spacing:-.01em;padding-bottom:10px;margin-bottom:20px;
  border-bottom:3px solid var(--ink);color:var(--ink)}
.section-title .num{font-family:var(--fm);font-size:.66rem;color:#fff;font-weight:700;
  background:var(--nl-red);padding:5px 11px;letter-spacing:.14em;border:2px solid var(--ink)}

.box{margin:16px 0;padding:18px 20px 16px;background:#fff;border:2px solid var(--ink);border-radius:0}
.box-label{display:block;font-family:var(--fm);font-size:.62rem;letter-spacing:.18em;
  text-transform:uppercase;margin-bottom:9px;font-weight:700}
.box.def{background:var(--nl-yellow);border-color:var(--ink)}
.box.def .box-label{color:var(--ink)}
.box.histoire{background:#fff;border-top:6px solid var(--nl-blue)}
.box.histoire .box-label{color:var(--nl-blue)}
.box.technique{background:var(--paper-2);border-top:6px solid var(--muted)}
.box.technique .box-label{color:var(--muted)}
.box.attention{background:#fff;border-top:6px solid var(--nl-red)}
.box.attention .box-label{color:var(--nl-red)}
.box.remark{background:transparent;border:none;border-left:4px solid var(--ink);padding-left:20px}
.box.remark .box-label{color:var(--ink)}
.box.chiffres{background:var(--ink);color:#fff;border:none;border-left:6px solid var(--nl-yellow)}
.box.chiffres .box-label{color:var(--nl-yellow)}
.box.chiffres p,.box.chiffres li{color:rgba(255,255,255,.9)}
.box p:last-child,.box ul:last-child{margin-bottom:0}
p{margin-bottom:.85em}ul{padding-left:1.35em;margin-bottom:.85em}li{margin-bottom:.3em}
strong{color:var(--nl-red);font-weight:700}

.data-table{width:100%;border-collapse:collapse;margin:14px 0;font-size:.88rem;background:#fff;border:2px solid var(--ink)}
.data-table th{background:var(--ink);color:var(--nl-yellow);padding:11px 14px;text-align:left;
  font-family:var(--fm);font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;font-weight:700}
.data-table td{padding:10px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.data-table tr:last-child td{border-bottom:none}
.data-table td:first-child{font-weight:700;color:var(--nl-red)}
.box.chiffres .data-table{border-color:var(--nl-yellow)}
.box.chiffres .data-table th{background:rgba(254,204,0,.15)}
.box.chiffres .data-table td{border-color:rgba(255,255,255,.14);color:rgba(255,255,255,.9)}
.box.chiffres .data-table td:first-child{color:var(--nl-yellow)}

.two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:14px 0}.two-col .box{margin:0}

.mobile-header{display:none;position:sticky;top:0;z-index:50;background:var(--nl-red);color:#fff;
  padding:12px 18px;align-items:center;justify-content:space-between;border-bottom:4px solid var(--ink)}
.mobile-menu-btn{background:none;border:none;color:#fff;font-size:1.3rem;cursor:pointer}
.mobile-title{font-family:var(--fd);font-size:1.1rem;color:#fff;text-transform:uppercase}
.mobile-drawer{display:none;position:fixed;inset:0;z-index:100}
.mobile-drawer.open{display:flex}
.drawer-overlay{position:absolute;inset:0;background:rgba(0,0,0,.7)}
.drawer-panel{position:relative;z-index:1;width:280px;background:#fff;height:100%;
  overflow-y:auto;padding:0;border-right:4px solid var(--ink)}
@media(max-width:960px){
  .sidebar{display:none}.mobile-header{display:flex}.main{padding:0 18px 72px}
  .page-title{font-size:2.7rem}.two-col{grid-template-columns:1fr}
  .page-header::before{width:48px;height:48px;top:28px}
}