/* ═══════════════════════════════════════════════════════════════════
   norvege.css — Thème : fjords, nuit polaire, bleu profond & aurore
   ═══════════════════════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Merriweather:ital,wght@0,300;0,400;0,700;1,400&family=Work+Sans:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --ink:#eaeef5;               /* texte clair */
  --paper:#0a1626;             /* nuit nordique */
  --paper-2:#0f1e32;
  --surface:#15263f;
  --fjord:#2b6fa0;             /* bleu fjord */
  --fjord-deep:#0e3a60;
  --ice:#8fd3e8;               /* glace */
  --aurora:#72e0a1;            /* vert aurore boréale */
  --rust:#c65a3a;              /* rouille maisons rouges */
  --birch:#e8dcc4;
  --line:rgba(234,238,245,.1);
  --line-h:rgba(143,211,232,.4);
  --muted:rgba(234,238,245,.55);
  --fd:'Merriweather',Georgia,serif;
  --fb:'Work Sans',system-ui,sans-serif;
  --fm:'JetBrains Mono',monospace;
  --sw:280px;--r:3px;
}
*,*::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:1.78;
  background-image:
    radial-gradient(ellipse 60% 40% at 10% 5%, rgba(114,224,161,.12), transparent 55%),
    radial-gradient(ellipse 80% 50% at 90% 100%, rgba(43,111,160,.18), transparent 60%);
  background-attachment:fixed;
}

.progress-bar{position:fixed;top:0;left:0;height:3px;width:0;z-index:200;
  background:linear-gradient(90deg,var(--fjord-deep),var(--aurora),var(--ice))}

.page-layout{display:flex;min-height:100vh}
.sidebar{width:var(--sw);flex-shrink:0;background:#060f1c;border-right:1px solid var(--line);
  position:sticky;top:0;height:100vh;overflow-y:auto;display:flex;flex-direction:column}
.sidebar-header{padding:32px 24px 22px;border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(114,224,161,.05),transparent)}
.sidebar-back{display:block;font-family:var(--fm);font-size:.6rem;letter-spacing:.2em;
  text-decoration:none;color:var(--muted);margin-bottom:14px;text-transform:uppercase}
.sidebar-back:hover{color:var(--aurora)}
.sidebar-title{font-family:var(--fd);font-size:1.9rem;line-height:1.05;color:var(--ice);font-weight:700;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;
  color:var(--muted);padding:10px 24px 6px}
.toc-link{display:block;padding:6px 24px;color:rgba(234,238,245,.75);text-decoration:none;
  font-size:.9rem;font-weight:400;border-left:2px solid transparent;transition:all .2s}
.toc-link:hover,.toc-link.active{background:rgba(143,211,232,.06);border-left-color:var(--ice);color:var(--ice)}
.sidebar-nav{padding:16px 24px 22px;border-top:1px solid var(--line)}
.sidebar-nav p{font-family:var(--fm);font-size:.58rem;letter-spacing:.2em;text-transform:uppercase;
  color:var(--muted);margin:10px 0 8px}
.sidebar-nav a{display:block;text-decoration:none;color:rgba(234,238,245,.6);padding:3px 0;font-size:.88rem}
.sidebar-nav a:hover,.sidebar-nav a.current{color:var(--ice)}
.sidebar-nav a.current{font-weight:600}

.main{flex:1;min-width:0;max-width:900px;padding:0 62px 100px}
.page-header{padding:60px 0 38px;margin-bottom:44px;border-bottom:1px solid var(--line);position:relative}
.page-header::after{content:'';position:absolute;left:0;bottom:-1px;width:140px;height:3px;
  background:linear-gradient(90deg,var(--aurora),var(--ice),transparent)}
.subject-tag{font-family:var(--fm);font-size:.62rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--aurora);margin-bottom:14px;font-weight:500}
.page-title{font-family:var(--fd);font-size:3.9rem;line-height:.98;color:var(--ice);font-weight:700;letter-spacing:-.02em}
.page-title .sub{display:block;font-size:1.05rem;font-family:var(--fm);letter-spacing:.06em;
  color:var(--muted);margin-top:12px;font-weight:400}
.page-intro{margin-top:16px;max-width:640px;color:rgba(234,238,245,.75);font-size:1.04rem;font-style:italic}

.section{margin-bottom:58px;scroll-margin-top:24px}
.section-title{display:flex;align-items:baseline;gap:14px;font-family:var(--fd);font-size:2rem;
  font-weight:700;padding-bottom:10px;margin-bottom:20px;border-bottom:1px solid var(--line);color:var(--ice)}
.section-title .num{font-family:var(--fm);font-size:.66rem;color:var(--paper);font-weight:700;
  background:var(--aurora);padding:4px 11px;letter-spacing:.12em;border-radius:2px}

.box{margin:16px 0;padding:18px 20px 16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r)}
.box-label{display:block;font-family:var(--fm);font-size:.6rem;letter-spacing:.18em;
  text-transform:uppercase;margin-bottom:9px;font-weight:500}
.box.def{background:rgba(143,211,232,.06);border-left:3px solid var(--ice)}
.box.def .box-label{color:var(--ice)}
.box.histoire{background:rgba(200,90,58,.1);border-left:3px solid var(--rust)}
.box.histoire .box-label{color:var(--rust)}
.box.technique{background:rgba(114,224,161,.06);border-left:3px solid var(--aurora)}
.box.technique .box-label{color:var(--aurora)}
.box.attention{background:rgba(200,60,60,.12);border-left:3px solid #e06060}
.box.attention .box-label{color:#ff8080}
.box.remark{background:transparent;border:none;border-left:2px solid var(--fjord);padding-left:20px}
.box.remark .box-label{color:var(--ice)}
.box.chiffres{background:#020a15;border:1px solid var(--ice);border-left:3px solid var(--aurora)}
.box.chiffres .box-label{color:var(--aurora)}
.box p:last-child,.box ul:last-child{margin-bottom:0}
p{margin-bottom:.9em}ul{padding-left:1.35em;margin-bottom:.9em}li{margin-bottom:.3em}
strong{color:var(--aurora);font-weight:600}

.data-table{width:100%;border-collapse:collapse;margin:14px 0;font-size:.88rem;background:var(--paper)}
.data-table th{background:var(--fjord-deep);color:var(--ice);padding:10px 14px;text-align:left;
  font-family:var(--fm);font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;font-weight:500}
.data-table td{padding:9px 14px;border-bottom:1px solid var(--line);vertical-align:top;color:rgba(234,238,245,.85)}
.data-table tr:last-child td{border-bottom:none}
.data-table td:first-child{color:var(--ice);font-weight:500}

.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(--paper);
  padding:12px 18px;align-items:center;justify-content:space-between;border-bottom:2px solid var(--aurora)}
.mobile-menu-btn{background:none;border:none;color:var(--ice);font-size:1.3rem;cursor:pointer}
.mobile-title{font-family:var(--fd);font-size:1.1rem;color:var(--ice);font-weight:700}
.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,.8)}
.drawer-panel{position:relative;z-index:1;width:280px;background:#060f1c;height:100%;
  overflow-y:auto;padding:14px 0;border-right:2px solid var(--aurora)}
@media(max-width:960px){
  .sidebar{display:none}.mobile-header{display:flex}.main{padding:0 20px 72px}
  .page-title{font-size:2.6rem}.two-col{grid-template-columns:1fr}
}