/* surrealisme.css — Thème : Désert de Dali, cyan onirique, magenta, œil/montre molle */
@import url('https://fonts.googleapis.com/css2?family=Abril+Fatface&family=Cormorant+Garamond:ital,wght@0,500;0,700;1,500;1,700&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');
:root{
  --sb:#0d0815;--sb2:#160f22;--surf:#1f1730;--surf2:#2c2144;
  --cya:#3c8fb3;--cya2:#5ac0e5;--cya-p:rgba(90,192,229,.12);--cya-d:rgba(90,192,229,.5);
  --mag:#b83875;--mag2:#e0528c;--mag-p:rgba(224,82,140,.12);--mag-d:rgba(224,82,140,.5);
  --des:#c89a68;--des2:#e0b486;--des-p:rgba(224,180,134,.12);
  --ora:#e6634a;--ora2:#ff7f50;
  --bor:#2a1f3f;--bor2:#3a2d5a;
  --ink:#ebe2f5;--ink2:rgba(235,226,245,.68);--ink3:rgba(235,226,245,.32);
  --brd:rgba(90,192,229,.2);--brdh:rgba(90,192,229,.48);
  --fd:'Abril Fatface',Georgia,serif;--fs:'Cormorant Garamond',Georgia,serif;--fb:'Inter',sans-serif;--fm:'JetBrains Mono',monospace;
  --sw:272px;--r:3px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}html{scroll-behavior:smooth;}
body{font-family:var(--fb);background:var(--sb);color:var(--ink);font-size:16.3px;line-height:1.84;
  background-image:
    radial-gradient(ellipse at 10% 5%,rgba(224,82,140,.14) 0,transparent 42%),
    radial-gradient(ellipse at 88% 32%,rgba(90,192,229,.14) 0,transparent 44%),
    radial-gradient(ellipse at 25% 88%,rgba(224,180,134,.12) 0,transparent 42%);
  background-attachment:fixed;position:relative;min-height:100vh;}
.progress-bar{position:fixed;top:0;left:0;height:4px;width:0%;background:linear-gradient(90deg,var(--mag2),var(--des2),var(--cya2));z-index:200;transition:width .08s;box-shadow:0 0 12px rgba(224,82,140,.55);}
.page-layout{display:flex;min-height:100vh;position:relative;z-index:2;}
.sidebar{width:var(--sw);flex-shrink:0;background:linear-gradient(180deg,var(--sb2),var(--sb));border-right:1px solid var(--brd);position:sticky;top:0;height:100vh;overflow-y:auto;display:flex;flex-direction:column;scrollbar-width:thin;}
.sidebar-header{padding:28px 22px 22px;border-bottom:1px solid var(--brd);position:relative;overflow:hidden;}
/* Œil onirique avec cils et iris bleu */
.sidebar-header::before{content:'';position:absolute;right:14px;top:20px;width:66px;height:36px;border-radius:50%;
  background:radial-gradient(ellipse,#fff 0,#fff 30%,var(--cya2) 31%,var(--cya2) 46%,var(--sb) 47%,var(--sb) 53%,#fff 54%,#fff 70%,transparent 71%);
  box-shadow:0 0 14px rgba(90,192,229,.5),inset 0 -2px 4px rgba(0,0,0,.4);}
.sidebar-header::after{content:'';position:absolute;right:14px;top:14px;width:66px;height:8px;
  background-image:repeating-linear-gradient(90deg,var(--ink2) 0,var(--ink2) 1px,transparent 1px,transparent 4px);
  transform:skewX(-12deg);opacity:.55;}
.sidebar-back{font-family:var(--fm);font-size:.6rem;letter-spacing:.14em;color:var(--ink3);text-decoration:none;display:block;margin-bottom:12px;position:relative;z-index:1;text-transform:uppercase;}
.sidebar-back:hover{color:var(--mag2);}
.sidebar-title{font-family:var(--fd);font-size:1.75rem;font-weight:400;color:var(--mag2);line-height:1;letter-spacing:.01em;position:relative;z-index:1;}
.toc-nav{padding:10px 0 14px;flex:1;}
.toc-section-label{font-family:var(--fm);font-size:.58rem;letter-spacing:.22em;text-transform:uppercase;color:var(--ink3);padding:10px 22px 4px;}
.toc-link{display:block;padding:5px 22px 5px 26px;font-family:var(--fb);font-size:.82rem;color:var(--ink2);text-decoration:none;border-left:2px solid transparent;transition:all .18s;}
.toc-link:hover,.toc-link.active{color:var(--cya2);border-left-color:var(--mag2);background:var(--mag-p);}
.sidebar-nav{padding:12px 22px;border-top:1px solid var(--brd);}
.sidebar-nav p{font-family:var(--fm);font-size:.56rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink3);margin-bottom:7px;margin-top:10px;}
.sidebar-nav p:first-child{margin-top:0;}
.sidebar-nav a{display:block;font-family:var(--fb);font-size:.8rem;color:var(--ink3);text-decoration:none;padding:2px 0;}
.sidebar-nav a:hover,.sidebar-nav a.current{color:var(--mag2);}
.sidebar-nav a.current{font-weight:700;}
.main{flex:1;min-width:0;padding:0 58px 100px;max-width:840px;}
.page-header{padding:58px 0 38px;margin-bottom:50px;border-bottom:1px solid var(--brd);position:relative;}
.page-header::before{content:'';position:absolute;top:58px;right:0;width:140px;height:3px;background:linear-gradient(90deg,transparent,var(--mag2),var(--cya2));opacity:.8;}
.page-header::after{content:'';position:absolute;bottom:-1px;left:0;width:220px;height:2px;background:linear-gradient(90deg,var(--cya2),var(--mag2),transparent);box-shadow:0 0 14px rgba(224,82,140,.5);}
.subject-tag{font-family:var(--fm);font-size:.62rem;letter-spacing:.24em;text-transform:uppercase;color:var(--cya2);margin-bottom:12px;}
h1.page-title{font-family:var(--fd);font-size:3.6rem;font-weight:400;color:var(--mag2);line-height:1;letter-spacing:.005em;}
h1.page-title .sub{color:var(--des2);font-size:.95rem;display:block;margin-top:13px;font-family:var(--fs);font-style:italic;font-weight:500;letter-spacing:.03em;}
.page-intro{margin-top:17px;font-size:1rem;color:var(--ink2);font-family:var(--fs);font-style:italic;max-width:540px;}
.section{margin-bottom:60px;scroll-margin-top:26px;}
h2.section-title{font-family:var(--fd);font-size:1.95rem;font-weight:400;color:var(--cya2);margin-bottom:22px;padding-bottom:9px;border-bottom:1px solid var(--brd);display:flex;align-items:baseline;gap:14px;letter-spacing:.005em;}
h2.section-title .num{font-family:var(--fm);font-size:.7rem;color:var(--sb);background:var(--mag2);padding:3px 11px;border-radius:2px;font-weight:500;letter-spacing:.05em;}
p{margin-bottom:.9em;}ul,ol{padding-left:1.4em;margin-bottom:.9em;}li{margin-bottom:.32em;}
strong{color:var(--mag2);font-weight:700;}em{color:var(--cya2);font-style:italic;}
.box{padding:16px 19px 14px;margin:16px 0;border-radius:var(--r);border:1px solid var(--brd);background:rgba(255,255,255,.03);}
.box-label{font-family:var(--fm);font-size:.62rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;display:block;margin-bottom:9px;}
.box.def{background:var(--cya-p);border-color:var(--brdh);}.box.def .box-label{color:var(--cya2);}
.box.histoire{background:var(--mag-p);border-left:4px solid var(--mag2);}.box.histoire .box-label{color:var(--mag2);}
.box.technique{background:var(--des-p);border-left:4px solid var(--des);}.box.technique .box-label{color:var(--des2);}
.box.conseil{background:rgba(224,180,134,.08);border-left:4px solid var(--des);}.box.conseil .box-label{color:var(--des2);}
.box.attention{background:rgba(230,99,74,.14);border-left:4px solid var(--ora);}.box.attention .box-label{color:var(--ora2);}
.box.chiffres{background:rgba(0,0,0,.4);border-color:var(--brdh);}.box.chiffres .box-label{color:var(--cya2);}
.box.remark{background:transparent;border-left:3px solid var(--brd);padding-left:20px;}.box.remark .box-label{color:var(--ink3);}
.data-table{width:100%;border-collapse:collapse;margin:14px 0;font-size:.89rem;overflow:hidden;border:1px solid var(--brd);border-radius:var(--r);}
.data-table th{background:rgba(31,23,48,.9);color:var(--cya2);padding:10px 14px;text-align:left;font-family:var(--fm);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;border-bottom:1px solid var(--brdh);}
.data-table td{padding:9px 14px;border-bottom:1px solid var(--brd);vertical-align:top;}
.data-table tr:hover td{background:var(--mag-p);}.data-table td:first-child{font-family:var(--fm);font-size:.8rem;color:var(--mag2);}
code{font-family:var(--fm);font-size:.82em;background:rgba(0,0,0,.42);color:var(--cya2);padding:2px 6px;border-radius:2px;border:1px solid var(--brd);}
.mobile-header{display:none;position:sticky;top:0;z-index:50;background:var(--sb2);border-bottom:2px solid var(--mag2);padding:12px 18px;align-items:center;justify-content:space-between;}
.mobile-menu-btn{background:none;border:none;color:var(--cya2);font-size:1.3rem;cursor:pointer;}
.mobile-title{font-family:var(--fd);font-size:1.15rem;color:var(--mag2);font-weight:400;}
.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,.82);}
.drawer-panel{position:relative;z-index:1;width:272px;background:var(--sb2);height:100%;overflow-y:auto;padding:14px 0;border-right:1px solid var(--brd);}
@media(max-width:960px){.sidebar{display:none;}.mobile-header{display:flex;}.main{padding:0 20px 70px;}h1.page-title{font-size:2.4rem;}}