@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Newsreader:ital,opsz,wght@0,6..72,300;0,6..72,400;1,6..72,300&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  --sb:#010810;--sp:#020c1c;--a:#4080e0;--a2:#1040a0;--ink:#b0d0ff;
  --ink-mid:rgba(176,208,255,.6);--fd:'Space Grotesk';--fb:'Newsreader';--fm:'JetBrains Mono';--r:8px;--sw:270px;
  --border:rgba(255,255,255,.1);--bhi:rgba(255,255,255,.3);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}html{scroll-behavior:smooth;}
body{font-family:var(--fb),Georgia,serif;background:#010810;color:var(--ink);font-size:16.5px;line-height:1.82;background-image:radial-gradient(ellipse at 50% 50%,rgba(16,64,160,.15) 0,transparent 55%);background-attachment:fixed;}
.progress-bar{position:fixed;top:0;left:0;height:3px;width:0%;background:linear-gradient(90deg,#1040a0,#4080e0,#1040a0);z-index:200;transition:width .08s linear;box-shadow:0 0 8px #4080e0;}
.page-layout{display:flex;min-height:100vh;}
.sidebar{width:var(--sw);flex-shrink:0;background:#020c1c;border-right:1px solid rgba(255,255,255,.1);position:sticky;top:0;height:100vh;overflow-y:auto;display:flex;flex-direction:column;scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.2) transparent;}
.sidebar-header{padding:26px 20px 20px;border-bottom:1px solid rgba(255,255,255,.1);}
.sidebar-back{font-family:var(--fm);font-size:.6rem;letter-spacing:.14em;color:rgba(255,255,255,.3);text-decoration:none;display:block;margin-bottom:12px;}
.sidebar-back:hover{color:#4080e0;}
.sidebar-title{font-family:var(--fd),Georgia,serif;font-size:1.55rem;color:#4080e0;line-height:1.1;font-style:italic;}
.toc-nav{padding:10px 0 14px;flex:1;}
.toc-section-label{font-family:var(--fm);font-size:.58rem;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.22);padding:8px 20px 4px;}
.toc-link{display:block;padding:5px 20px 5px 24px;font-family:var(--fb),sans-serif;font-size:.82rem;color:rgba(255,255,255,.5);text-decoration:none;border-left:2px solid transparent;transition:all .15s;}
.toc-link:hover,.toc-link.active{color:#4080e0;border-left-color:#4080e0;background:rgba(255,255,255,.06);}
.sidebar-nav{padding:12px 20px;border-top:1px solid rgba(255,255,255,.08);}
.sidebar-nav p{font-family:var(--fm);font-size:.56rem;letter-spacing:.16em;text-transform:uppercase;color:rgba(255,255,255,.22);margin-bottom:7px;}
.sidebar-nav a{display:block;font-family:var(--fb),sans-serif;font-size:.8rem;color:rgba(255,255,255,.35);text-decoration:none;padding:2px 0;}
.sidebar-nav a:hover,.sidebar-nav a.current{color:#4080e0;font-weight:600;}
.main{flex:1;min-width:0;padding:0 56px 100px;max-width:840px;}
.page-header{padding:52px 0 34px;margin-bottom:46px;border-bottom:1px solid rgba(255,255,255,.1);position:relative;}
.page-header::after{content:'';position:absolute;bottom:-1px;left:0;width:100px;height:1px;background:#4080e0;box-shadow:0 0 10px #4080e0;}
.subject-tag{font-family:var(--fm);font-size:.62rem;letter-spacing:.2em;text-transform:uppercase;color:#4080e0;margin-bottom:12px;}
h1.page-title{font-family:var(--fd),Georgia,serif;font-size:3.2rem;color:var(--ink);line-height:.98;font-style:italic;}
h1.page-title .sub{color:#4080e0;font-style:normal;font-size:1.3rem;display:block;margin-top:5px;}
.page-intro{margin-top:14px;font-size:1rem;color:var(--ink-mid);font-style:italic;max-width:520px;}
.section{margin-bottom:58px;scroll-margin-top:24px;}
h2.section-title{font-family:var(--fd),Georgia,serif;font-size:1.8rem;color:var(--ink);margin-bottom:18px;padding-bottom:8px;border-bottom:1px solid rgba(255,255,255,.1);display:flex;align-items:baseline;gap:12px;font-style:italic;}
h2.section-title .num{font-family:var(--fm);font-size:.7rem;font-style:normal;color:#010810;background:#4080e0;padding:2px 9px;border-radius:20px;font-weight:400;}
h3.sub-title{font-family:var(--fd),Georgia,serif;font-size:1.2rem;color:#4080e0;margin:24px 0 10px;font-style:italic;}
p{margin-bottom:.9em;}ul,ol{padding-left:1.4em;margin-bottom:.9em;}li{margin-bottom:.28em;}
.box{padding:15px 18px 13px;margin:16px 0;border-radius:var(--r);border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.06);}
.box-label{font-family:var(--fm);font-size:.62rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;display:block;margin-bottom:7px;}
.box.def{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.25);}.box.def .box-label{color:#4080e0;}
.box.technique{background:rgba(255,255,255,.06);}.box.technique .box-label{color:#1040a0;}
.box.conseil{border-left:4px solid #4080e0;}.box.conseil .box-label{color:#4080e0;}
.box.attention{background:rgba(255,70,50,.1);border-color:rgba(255,70,50,.25);}.box.attention .box-label{color:#ff9080;}
.box.histoire{border-left:4px solid #1040a0;}.box.histoire .box-label{color:#1040a0;}
.box.chiffres{background:rgba(0,0,0,.35);border-color:rgba(255,255,255,.2);}.box.chiffres .box-label{color:#4080e0;}
.box.remark{background:transparent;border-left:3px solid rgba(255,255,255,.15);padding-left:18px;}.box.remark .box-label{color:rgba(255,255,255,.4);}
.detail-toggle{display:inline-flex;align-items:center;gap:6px;font-family:var(--fm);font-size:.7rem;color:#4080e0;border:1px solid #4080e0;padding:4px 12px;border-radius:20px;cursor:pointer;background:transparent;margin-top:8px;transition:all .15s;user-select:none;}
.detail-toggle:hover{background:#4080e0;color:#010810;}.detail-toggle .arrow{transition:transform .2s;}.detail-toggle.open .arrow{transform:rotate(90deg);}
.detail-content{max-height:0;overflow:hidden;transition:max-height .3s ease;}.detail-content.open{max-height:900px;}
.detail-inner{margin-top:10px;padding:12px 16px;background:rgba(0,0,0,.3);border:1px dashed rgba(255,255,255,.1);border-radius:var(--r);color:var(--ink-mid);font-size:.92rem;}
.data-table{width:100%;border-collapse:collapse;margin:14px 0;font-size:.88rem;border-radius:var(--r);overflow:hidden;border:1px solid rgba(255,255,255,.12);}
.data-table th{background:rgba(0,0,0,.45);color:#4080e0;padding:9px 13px;text-align:left;font-family:var(--fm);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;border-bottom:1px solid rgba(255,255,255,.2);}
.data-table td{padding:8px 13px;border-bottom:1px solid rgba(255,255,255,.07);vertical-align:top;}
.data-table tr:hover td{background:rgba(255,255,255,.05);}.data-table td:first-child{font-family:var(--fm);font-size:.8rem;color:#4080e0;}
code{font-family:var(--fm);font-size:.82em;background:rgba(0,0,0,.3);color:#4080e0;padding:2px 6px;border-radius:4px;}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:12px 0;}.two-col .box{margin:0;}
.mobile-header{display:none;position:sticky;top:0;z-index:50;background:#020c1c;border-bottom:1px solid rgba(255,255,255,.12);padding:12px 18px;align-items:center;justify-content:space-between;}
.mobile-menu-btn{background:none;border:none;color:#4080e0;font-size:1.3rem;cursor:pointer;}
.mobile-title{font-family:var(--fd),Georgia,serif;font-size:1rem;color:#4080e0;font-style:italic;}
.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,.75);}
.drawer-panel{position:relative;z-index:1;width:270px;background:#020c1c;height:100%;overflow-y:auto;padding:14px 0;}
.sidebar-title{font-style:normal;font-weight:700;letter-spacing:.03em;}h1.page-title{font-style:normal;font-weight:700;}h2.section-title{font-style:normal;font-weight:500;}
@media(max-width:960px){.sidebar{display:none;}.mobile-header{display:flex;}.main{padding:0 18px 70px;}h1.page-title{font-size:2.4rem;}.two-col{grid-template-columns:1fr;}}