/* ─── capitalisme.css — Thème : Traité politique, bordeaux, manifeste ───────── */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,700;0,900;1,400;1,700&family=EB+Garamond:ital,wght@0,400;0,500;1,400;1,500&family=Courier+Prime:ital,wght@0,400;0,700;1,400&display=swap');

:root {
  --paper:    #f8f3eb; --paper-2:#f0e8d8; --paper-3:#e6d9c2;
  --ink:      #120404; --ink-mid:#4a1010; --ink-light:#8b4444;
  --burgundy: #7c2d12; --burg-2:#9a3412; --burg-pale:#fef2ee;
  --burg-mid: #fcd5c2; --gold:#b45309; --gold-pale:#fefce8;
  --slate:    #1e3a5f; --slate-pale:#eff6ff;
  --border:   #d6b89a; --border-light:#ead9c0;
  --font-display:'Playfair Display',Georgia,serif;
  --font-body:'EB Garamond',Georgia,serif;
  --font-mono:'Courier Prime',Courier,monospace;
  --sidebar-w:272px; --radius:3px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}

body{
  font-family:var(--font-body);background:var(--paper);color:var(--ink);
  font-size:18px;line-height:1.85;
  background-image:repeating-linear-gradient(0deg,transparent,transparent 31px,rgba(180,83,9,.04) 31px,rgba(180,83,9,.04) 32px);
}

.progress-bar{position:fixed;top:0;left:0;height:5px;width:0%;background:var(--burgundy);z-index:200;transition:width .08s linear;}

.page-layout{display:flex;min-height:100vh;}

.sidebar{
  width:var(--sidebar-w);flex-shrink:0;background:var(--ink);
  position:sticky;top:0;height:100vh;overflow-y:auto;display:flex;flex-direction:column;
  scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.1) transparent;
  background-image:repeating-linear-gradient(90deg,transparent,transparent 2px,rgba(255,255,255,.01) 2px,rgba(255,255,255,.01) 60px);
}
.sidebar-header{padding:32px 22px 22px;border-bottom:1px solid rgba(255,255,255,.07);}
.sidebar-site-link{font-family:var(--font-mono);font-size:.6rem;letter-spacing:.15em;color:rgba(255,255,255,.25);text-decoration:none;display:block;margin-bottom:12px;}
.sidebar-title{font-family:var(--font-display);font-size:1.5rem;font-weight:900;color:var(--burg-mid);line-height:1.15;font-style:italic;}
.toc-nav{padding:12px 0 16px;flex:1;}
.toc-section-label{font-family:var(--font-mono);font-size:.58rem;letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.2);padding:10px 22px 4px;}
.toc-link{display:block;padding:5px 22px 5px 26px;font-family:var(--font-body);font-size:.95rem;color:rgba(255,255,255,.5);text-decoration:none;border-left:2px solid transparent;transition:all .18s;font-style:italic;}
.toc-link:hover,.toc-link.active{color:#fff;border-left-color:var(--burg-2);background:rgba(124,45,18,.2);}
.toc-link.active{color:var(--burg-mid);}
.sidebar-subject-nav{padding:14px 22px;border-top:1px solid rgba(255,255,255,.06);}
.sidebar-subject-nav p{font-family:var(--font-mono);font-size:.58rem;letter-spacing:.15em;text-transform:uppercase;color:rgba(255,255,255,.2);margin-bottom:8px;}
.sidebar-subject-nav a{display:block;font-family:var(--font-body);font-size:.88rem;color:rgba(255,255,255,.38);text-decoration:none;padding:3px 0;transition:color .15s;}
.sidebar-subject-nav a:hover{color:var(--burg-mid);}
.sidebar-subject-nav a.current{color:var(--burg-mid);font-style:italic;}

.main{flex:1;min-width:0;padding:0 68px 100px;max-width:840px;}

.page-header{padding:64px 0 44px;margin-bottom:54px;border-bottom:3px solid var(--ink);position:relative;}
.page-header::after{content:'— ✦ —';position:absolute;bottom:-14px;left:50%;transform:translateX(-50%);font-family:var(--font-display);font-size:1rem;color:var(--ink);background:var(--paper);padding:0 14px;letter-spacing:.15em;}
.subject-tag{font-family:var(--font-mono);font-size:.65rem;letter-spacing:.22em;text-transform:uppercase;color:var(--burgundy);margin-bottom:14px;}
h1.page-title{font-family:var(--font-display);font-size:4rem;font-weight:900;color:var(--ink);line-height:.95;font-style:italic;letter-spacing:-.01em;}
.page-intro{margin-top:18px;font-size:1.1rem;color:var(--ink-mid);font-style:italic;max-width:550px;}

.section{margin-bottom:68px;scroll-margin-top:28px;}
h2.section-title{font-family:var(--font-display);font-size:2rem;font-weight:700;color:var(--ink);margin-bottom:22px;padding-bottom:8px;border-bottom:1px solid var(--border);display:flex;align-items:baseline;gap:14px;font-style:italic;}
h2.section-title .num{font-family:var(--font-mono);font-size:.8rem;color:var(--burgundy);font-style:normal;font-weight:400;}
h3.sub-title{font-family:var(--font-display);font-size:1.35rem;font-weight:700;color:var(--burgundy);margin:32px 0 12px;font-style:italic;}
p{margin-bottom:.95em;}ul,ol{padding-left:1.5em;margin-bottom:.9em;}li{margin-bottom:.3em;}

.box{padding:18px 22px 16px;margin:22px 0;border-radius:var(--radius);}
.box-label{font-family:var(--font-display);font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;display:block;margin-bottom:8px;font-style:normal;}
.box.def{background:var(--burg-pale);border-left:5px solid var(--burgundy);border:1px solid var(--burg-mid);border-left-width:5px;}
.box.def .box-label{color:var(--burgundy);}
.box.theorem{background:var(--gold-pale);border-left:5px solid var(--gold);border:1px solid #fde68a;border-left-width:5px;}
.box.theorem .box-label{color:var(--gold);}
.box.prop{background:var(--slate-pale);border-left:5px solid var(--slate);border:1px solid #bfdbfe;border-left-width:5px;}
.box.prop .box-label{color:var(--slate);}
.box.corollary{background:var(--paper-2);border-left:5px solid var(--ink-light);border:1px solid var(--border);border-left-width:5px;}
.box.corollary .box-label{color:var(--ink-mid);}
.box.example{background:var(--paper-3);border:1px solid var(--border);}
.box.example .box-label{color:var(--gold);}
.box.remark{background:transparent;border-left:3px solid var(--border-light);padding-left:20px;}
.box.remark .box-label{color:var(--ink-light);}

.proof-toggle{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-display);font-style:italic;font-size:.9rem;color:var(--burgundy);border:1px solid var(--burgundy);padding:4px 14px;border-radius:2px;cursor:pointer;background:transparent;margin-top:8px;transition:all .18s;user-select:none;}
.proof-toggle:hover{background:var(--burgundy);color:#fff;}
.proof-toggle .arrow{transition:transform .2s;font-style:normal;}
.proof-toggle.open .arrow{transform:rotate(90deg);}
.proof-content{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.proof-content.open{max-height:900px;}
.proof-inner{margin-top:12px;padding:14px 18px;font-style:italic;border-left:3px solid var(--border);color:var(--ink-mid);font-size:.97rem;}
.qed{float:right;font-family:var(--font-display);font-size:1.1rem;color:var(--ink);}

.formula-block{text-align:center;padding:20px 16px;margin:18px 0;background:var(--paper-2);border:1px solid var(--border);border-radius:var(--radius);overflow-x:auto;}

.math-table{width:100%;border-collapse:collapse;margin:18px 0;font-size:.94rem;}
.math-table th{background:var(--ink);color:var(--paper-3);padding:10px 14px;text-align:left;font-family:var(--font-display);font-size:1rem;font-style:italic;}
.math-table td{padding:9px 14px;border-bottom:1px solid var(--border-light);vertical-align:top;}
.math-table tr:nth-child(even) td{background:var(--paper-2);}
.math-table td:first-child{font-family:var(--font-display);font-style:italic;color:var(--burgundy);}
code{font-family:var(--font-mono);font-size:.82em;background:var(--paper-3);color:var(--burgundy);padding:2px 6px;border-radius:2px;}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:14px 0;}
.two-col .box{margin:0;}

.mobile-header{display:none;position:sticky;top:0;z-index:50;background:var(--ink);padding:12px 18px;align-items:center;justify-content:space-between;}
.mobile-menu-btn{background:none;border:none;color:var(--burg-mid);font-size:1.3rem;cursor:pointer;}
.mobile-title{font-family:var(--font-display);font-size:1.1rem;color:var(--burg-mid);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,.6);}
.drawer-panel{position:relative;z-index:1;width:272px;background:var(--ink);height:100%;overflow-y:auto;padding:16px 0;}
@media(max-width:960px){.sidebar{display:none;}.mobile-header{display:flex;}.main{padding:0 22px 70px;}h1.page-title{font-size:2.8rem;}.two-col{grid-template-columns:1fr;}}