/* mode.css — Thème : Noir absolu, blanc couture, rose fuchsia néon, argent podium */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display: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:#0a0a0a;--sb2:#141414;--surf:#1c1c1c;--surf2:#282828;
  --blc:#ebebeb;--blc2:#f7f7f7;--blc-p:rgba(247,247,247,.08);--blc-d:rgba(247,247,247,.5);
  --fuc:#ff4785;--fuc2:#ff78a8;--fuc-p:rgba(255,71,133,.13);--fuc-d:rgba(255,71,133,.46);
  --arg:#a8a8a8;--arg2:#c9c9c9;--arg-p:rgba(200,200,200,.07);
  --or:#c8a14a;--or2:#e0c370;
  --bor:#7a2040;--bor2:#a63b5e;
  --ink:#ebebeb;--ink2:rgba(235,235,235,.68);--ink3:rgba(235,235,235,.32);
  --brd:rgba(247,247,247,.16);--brdh:rgba(255,71,133,.5);
  --fd:'Playfair Display',Georgia,serif;--fb:'Inter',-apple-system,sans-serif;--fm:'JetBrains Mono',monospace;
  --sw:272px;--r:2px;
}
*,*::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:1.86;
  background-image:
    radial-gradient(ellipse at 50% -5%,rgba(255,71,133,.11) 0,transparent 42%),
    radial-gradient(ellipse at 15% 55%,rgba(247,247,247,.04) 0,transparent 46%),
    radial-gradient(ellipse at 88% 85%,rgba(255,71,133,.08) 0,transparent 40%);
  background-attachment:fixed;position:relative;min-height:100vh;}
.progress-bar{position:fixed;top:0;left:0;height:3px;width:0%;background:linear-gradient(90deg,var(--fuc),var(--fuc2),var(--blc));z-index:200;transition:width .08s;box-shadow:0 0 12px rgba(255,71,133,.6);}
.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;}
/* Couture cousue stylisée — points de piqûre diagonaux */
.sidebar-header::before{content:'';position:absolute;right:16px;top:18px;width:52px;height:52px;
  background-image:
    repeating-linear-gradient(45deg,var(--fuc) 0,var(--fuc) 3px,transparent 3px,transparent 8px),
    linear-gradient(135deg,transparent 40%,var(--fuc-p) 50%,transparent 60%);
  border:1px solid var(--fuc-d);border-radius:50%;opacity:.65;}
.sidebar-header::after{content:'';position:absolute;bottom:-1px;left:22px;width:72px;height:2px;background:linear-gradient(90deg,var(--fuc),transparent);}
.sidebar-back{font-family:var(--fm);font-size:.6rem;letter-spacing:.18em;color:var(--ink3);text-decoration:none;display:block;margin-bottom:12px;position:relative;z-index:1;text-transform:uppercase;}
.sidebar-back:hover{color:var(--fuc2);}
.sidebar-title{font-family:var(--fd);font-size:1.6rem;font-weight:700;font-style:italic;color:var(--blc2);line-height:1.02;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:.24em;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(--fuc2);border-left-color:var(--fuc);background:var(--fuc-p);}
.sidebar-nav{padding:12px 22px;border-top:1px solid var(--brd);}
.sidebar-nav p{font-family:var(--fm);font-size:.56rem;letter-spacing:.18em;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(--fuc2);}
.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:110px;height:3px;background:linear-gradient(90deg,transparent,var(--fuc),transparent);}
.page-header::after{content:'';position:absolute;bottom:-1px;left:0;width:200px;height:2px;background:linear-gradient(90deg,var(--fuc),var(--fuc2),transparent);box-shadow:0 0 16px rgba(255,71,133,.5);}
.subject-tag{font-family:var(--fm);font-size:.62rem;letter-spacing:.28em;text-transform:uppercase;color:var(--fuc2);margin-bottom:12px;}
h1.page-title{font-family:var(--fd);font-size:3.4rem;font-weight:700;font-style:italic;color:var(--blc2);line-height:1;letter-spacing:-.01em;}
h1.page-title .sub{color:var(--fuc2);font-size:.95rem;display:block;margin-top:12px;font-family:var(--fb);font-style:normal;font-weight:400;letter-spacing:.12em;text-transform:uppercase;}
.page-intro{margin-top:17px;font-size:1rem;color:var(--ink2);font-style:italic;max-width:540px;}
.section{margin-bottom:60px;scroll-margin-top:26px;}
h2.section-title{font-family:var(--fd);font-size:1.85rem;font-weight:700;font-style:italic;color:var(--blc2);margin-bottom:22px;padding-bottom:9px;border-bottom:1px solid var(--brd);display:flex;align-items:baseline;gap:14px;}
h2.section-title .num{font-family:var(--fm);font-size:.7rem;color:var(--sb);background:var(--fuc);padding:3px 11px;border-radius:2px;font-weight:500;letter-spacing:.08em;font-style:normal;}
p{margin-bottom:.9em;}ul,ol{padding-left:1.4em;margin-bottom:.9em;}li{margin-bottom:.32em;}
strong{color:var(--blc2);font-weight:700;}em{color:var(--fuc2);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,.025);}
.box-label{font-family:var(--fm);font-size:.62rem;font-weight:500;letter-spacing:.18em;text-transform:uppercase;display:block;margin-bottom:9px;}
.box.def{background:var(--blc-p);border-color:var(--blc-d);}.box.def .box-label{color:var(--blc2);}
.box.histoire{background:var(--fuc-p);border-left:4px solid var(--fuc);}.box.histoire .box-label{color:var(--fuc2);}
.box.technique{background:rgba(168,168,168,.07);border-left:4px solid var(--arg2);}.box.technique .box-label{color:var(--arg2);}
.box.conseil{background:rgba(200,161,74,.08);border-left:4px solid var(--or);}.box.conseil .box-label{color:var(--or2);}
.box.attention{background:rgba(166,59,94,.1);border-left:4px solid var(--bor2);}.box.attention .box-label{color:#d1557d;}
.box.chiffres{background:rgba(0,0,0,.42);border-color:var(--brdh);}.box.chiffres .box-label{color:var(--fuc2);}
.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(28,28,28,.9);color:var(--blc2);padding:10px 14px;text-align:left;font-family:var(--fm);font-size:.68rem;letter-spacing:.14em;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(--fuc-p);}.data-table td:first-child{font-family:var(--fm);font-size:.78rem;color:var(--fuc2);}
code{font-family:var(--fm);font-size:.82em;background:rgba(0,0,0,.5);color:var(--fuc2);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(--fuc);padding:12px 18px;align-items:center;justify-content:space-between;}
.mobile-menu-btn{background:none;border:none;color:var(--fuc2);font-size:1.3rem;cursor:pointer;}
.mobile-title{font-family:var(--fd);font-size:1rem;color:var(--blc2);font-weight:700;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,.85);}
.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:2.3rem;}}