/* ═══════════════════════════════════════════════════════════════════
   finlande.css — Thème : Aalto, Marimekko, bleu glacial, sauna & forêt
   ═══════════════════════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Unna:ital,wght@0,400;0,700;1,400&family=Rubik:wght@300;400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --ink:#0e1e2d;               /* bleu nuit forêt */
  --paper:#f4f8fb;             /* blanc lumineux */
  --paper-2:#e3ecf3;
  --fi-blue:#003580;           /* bleu drapeau */
  --fi-blue-2:#0057b7;
  --ice:#a8d0e8;               /* bleu glace */
  --birch:#e8dcc4;             /* bouleau */
  --forest:#2c5f3d;
  --line:rgba(14,30,45,.09);
  --line-h:rgba(0,53,128,.25);
  --muted:#5a6d7e;
  --fd:'Unna',Georgia,serif;
  --fb:'Rubik',system-ui,sans-serif;
  --fm:'IBM Plex Mono',monospace;
  --sw:280px;--r:0px;           /* angles nets, style scandinave */
}
*,*::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 80% 60% at 0% 0%, rgba(168,208,232,.25), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 100%, rgba(0,53,128,.04), transparent 60%);
  background-attachment:fixed;
}
/* Motif minimaliste : cercles Marimekko discrets */
body::before{
  content:'';position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.04;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><circle cx='30' cy='30' r='6' fill='%23003580'/><circle cx='70' cy='70' r='10' fill='none' stroke='%23003580' stroke-width='1.5'/></svg>");
  background-size:180px 180px;
}
.page-layout,.main,.sidebar{position:relative;z-index:1}

.progress-bar{position:fixed;top:0;left:0;height:4px;width:0;z-index:200;
  background:var(--fi-blue)}

.page-layout{display:flex;min-height:100vh}
.sidebar{width:var(--sw);flex-shrink:0;background:#fff;border-right:1px solid var(--line);
  position:sticky;top:0;height:100vh;overflow-y:auto;display:flex;flex-direction:column}
.sidebar::before{content:'';position:absolute;top:0;left:0;width:100%;height:6px;background:var(--fi-blue)}
.sidebar-header{padding:36px 26px 22px;border-bottom:1px solid var(--line)}
.sidebar-back{display:block;font-family:var(--fm);font-size:.6rem;letter-spacing:.22em;
  text-decoration:none;color:var(--muted);margin-bottom:14px;text-transform:uppercase}
.sidebar-back:hover{color:var(--fi-blue)}
.sidebar-title{font-family:var(--fd);font-size:2rem;line-height:1;color:var(--fi-blue);font-style:italic;font-weight:700}
.toc-nav{padding:14px 0;flex:1}
.toc-section-label{font-family:var(--fm);font-size:.58rem;letter-spacing:.24em;text-transform:uppercase;
  color:var(--muted);padding:10px 26px 6px}
.toc-link{display:block;padding:6px 26px;color:var(--ink);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(168,208,232,.22);border-left-color:var(--fi-blue);color:var(--fi-blue);font-weight:500}
.sidebar-nav{padding:16px 26px 22px;border-top:1px solid var(--line);background:var(--paper-2)}
.sidebar-nav p{font-family:var(--fm);font-size:.58rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--muted);margin:10px 0 8px}
.sidebar-nav a{display:block;text-decoration:none;color:var(--ink);padding:3px 0;font-size:.88rem;font-weight:400}
.sidebar-nav a:hover{color:var(--fi-blue)}
.sidebar-nav a.current{color:var(--fi-blue);font-weight:600}

.main{flex:1;min-width:0;max-width:900px;padding:0 62px 100px}
.page-header{padding:58px 0 36px;margin-bottom:46px;border-bottom:1px solid var(--line);position:relative}
.page-header::after{content:'';position:absolute;left:0;bottom:-1px;width:90px;height:4px;background:var(--fi-blue)}
.subject-tag{font-family:var(--fm);font-size:.62rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--fi-blue);margin-bottom:14px;font-weight:500}
.page-title{font-family:var(--fd);font-size:4rem;line-height:.96;color:var(--ink);font-weight:700}
.page-title .sub{display:block;font-size:1rem;font-family:var(--fm);letter-spacing:.06em;
  color:var(--muted);margin-top:12px;font-style:normal;font-weight:400}
.page-intro{margin-top:16px;max-width:640px;color:var(--muted);font-size:1.04rem}

.section{margin-bottom:56px;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(--ink)}
.section-title .num{font-family:var(--fm);font-size:.66rem;color:#fff;
  background:var(--fi-blue);padding:4px 11px;letter-spacing:.12em;font-weight:500}

.box{margin:16px 0;padding:18px 20px 16px;background:#fff;border:1px solid var(--line);border-radius:0}
.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{border-left:4px solid var(--fi-blue)}
.box.def .box-label{color:var(--fi-blue)}
.box.histoire{background:var(--birch);border-left:4px solid #8a7a4c}
.box.histoire .box-label{color:#7a6a3c}
.box.technique{background:var(--paper-2);border-left:4px solid var(--muted)}
.box.technique .box-label{color:var(--muted)}
.box.attention{background:#fff4f4;border-left:4px solid #a82828}
.box.attention .box-label{color:#a82828}
.box.remark{background:transparent;border:none;border-left:3px solid var(--ice);padding-left:20px}
.box.remark .box-label{color:var(--fi-blue-2)}
.box.chiffres{background:var(--fi-blue);color:#fff;border:none;border-top:4px solid var(--ice)}
.box.chiffres .box-label{color:var(--ice)}
.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:.9em}ul{padding-left:1.3em;margin-bottom:.9em}li{margin-bottom:.3em}
strong{color:var(--fi-blue);font-weight:600}

.data-table{width:100%;border-collapse:collapse;margin:14px 0;font-size:.88rem;background:#fff}
.data-table th{background:var(--ink);color:#fff;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: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:500;color:var(--fi-blue)}
.box.chiffres .data-table th{background:rgba(255,255,255,.12);color:var(--ice)}
.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(--ice)}

.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:#fff;
  padding:12px 18px;align-items:center;justify-content:space-between;border-bottom:4px solid var(--fi-blue)}
.mobile-menu-btn{background:none;border:none;color:var(--fi-blue);font-size:1.3rem;cursor:pointer}
.mobile-title{font-family:var(--fd);font-size:1.1rem;color:var(--fi-blue);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,.6)}
.drawer-panel{position:relative;z-index:1;width:280px;background:#fff;height:100%;
  overflow-y:auto;padding:14px 0;border-right:4px solid var(--fi-blue)}
@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}
}