/* ─── patronage.css — Thème : Patron de couture, épure technique, ardoise ─── */
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300&family=DM+Mono:ital,wght@0,400;0,500;1,400&display=swap');

:root {
  --paper:    #f5f7fa; --paper-2:#eef0f5; --paper-3:#e2e6ef;
  --ink:      #0f1825; --ink-mid:#2a3a55; --ink-light:#5a7090;
  --blue:     #1e5fa0; --blue-2:#2878c8; --blue-pale:#eff5ff;
  --blue-mid: #b0cef0; --steel:#3a6080; --sky:#4898d0;
  --chalk:    #d0dff0; --chalk-2:#b8cee8;
  --red:      #c0302a; --red-pale:#fff5f5;
  --green:    #287840; --green-pale:#f0fdf5;
  --amber:    #b06020; --amber-pale:#fff8f0;
  --border:   #c8d4e8; --border-light:#dae4f4;
  --grid-c:   rgba(30,95,160,.07);
  --font-display:'DM Serif Display',Georgia,serif;
  --font-body:'DM Sans',sans-serif;
  --font-mono:'DM Mono',monospace;
  --sidebar-w:270px; --radius:4px;
}
*,*::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:16.5px;line-height:1.78;
  /* Technical grid — like pattern paper */
  background-image:
    linear-gradient(var(--grid-c) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid-c) 1px,transparent 1px),
    linear-gradient(rgba(30,95,160,.02) 1px,transparent 1px),
    linear-gradient(90deg,rgba(30,95,160,.02) 1px,transparent 1px);
  background-size:50px 50px,50px 50px,10px 10px,10px 10px;
  background-attachment:fixed;
}

.progress-bar{position:fixed;top:0;left:0;height:3px;width:0%;background:var(--blue);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;
}
.sidebar-header{padding:28px 22px 22px;border-bottom:2px solid var(--blue);background:rgba(30,95,160,.08);}
.sidebar-back{font-family:var(--font-mono);font-size:.6rem;letter-spacing:.12em;color:rgba(255,255,255,.3);text-decoration:none;display:block;margin-bottom:12px;}
.sidebar-back:hover{color:var(--chalk);}
.sidebar-title{font-family:var(--font-display);font-size:1.4rem;color:var(--chalk);line-height:1.2;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,.22);padding:10px 22px 4px;}
.toc-link{display:block;padding:5px 22px 5px 26px;font-family:var(--font-body);font-size:.84rem;color:rgba(255,255,255,.48);text-decoration:none;border-left:2px solid transparent;transition:all .15s;}
.toc-link:hover,.toc-link.active{color:var(--chalk);border-left-color:var(--blue-2);background:rgba(30,95,160,.15);}
.sidebar-nav{padding:14px 22px;border-top:1px solid rgba(255,255,255,.07);}
.sidebar-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-nav a{display:block;font-family:var(--font-body);font-size:.82rem;color:rgba(255,255,255,.38);text-decoration:none;padding:3px 0;transition:color .15s;}
.sidebar-nav a:hover{color:var(--chalk);}
.sidebar-nav a.current{color:var(--chalk);font-weight:500;}

.main{flex:1;min-width:0;padding:0 58px 100px;max-width:840px;background:rgba(245,247,250,.85);backdrop-filter:blur(0);}

.page-header{padding:54px 0 36px;margin-bottom:50px;border-bottom:2px solid var(--ink);position:relative;}
.page-header::after{content:'';position:absolute;bottom:-2px;left:0;width:100px;height:2px;background:var(--blue-2);}
.subject-tag{font-family:var(--font-mono);font-size:.62rem;letter-spacing:.2em;text-transform:uppercase;color:var(--blue-2);margin-bottom:12px;}
h1.page-title{font-family:var(--font-display);font-size:3.2rem;color:var(--ink);line-height:1.0;font-style:italic;}
.page-intro{margin-top:16px;font-size:1rem;color:var(--ink-mid);font-style:italic;max-width:520px;font-family:var(--font-display);}

.section{margin-bottom:60px;scroll-margin-top:28px;}
h2.section-title{font-family:var(--font-display);font-size:1.8rem;color:var(--ink);margin-bottom:20px;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:.7rem;font-style:normal;color:white;background:var(--blue);padding:2px 9px;border-radius:3px;font-weight:400;}
h3.sub-title{font-family:var(--font-display);font-size:1.2rem;color:var(--blue);margin:28px 0 12px;font-style:italic;}
p{margin-bottom:.9em;}ul,ol{padding-left:1.5em;margin-bottom:.9em;}li{margin-bottom:.3em;}

.box{padding:16px 20px 14px;margin:18px 0;border-radius:var(--radius);}
.box-label{font-family:var(--font-mono);font-size:.63rem;font-weight:500;letter-spacing:.15em;text-transform:uppercase;display:block;margin-bottom:8px;}
.box.def{background:var(--blue-pale);border:1px solid var(--blue-mid);border-top:3px solid var(--blue-2);}
.box.def .box-label{color:var(--blue);}
.box.technique{background:var(--paper-2);border:1px solid var(--border);border-top:3px solid var(--steel);}
.box.technique .box-label{color:var(--steel);}
.box.conseil{background:var(--green-pale);border:1px solid #a8ddb8;border-top:3px solid var(--green);}
.box.conseil .box-label{color:var(--green);}
.box.histoire{background:var(--amber-pale);border:1px solid #f0c898;border-top:3px solid var(--amber);}
.box.histoire .box-label{color:var(--amber);}
.box.materiel{background:var(--paper);border:1px solid var(--border);}
.box.materiel .box-label{color:var(--ink-mid);}
.box.attention{background:var(--red-pale);border:1px solid #f8c0c0;border-top:3px solid var(--red);}
.box.attention .box-label{color:var(--red);}
.box.remark{background:transparent;border-left:3px solid var(--border);padding-left:20px;}
.box.remark .box-label{color:var(--ink-light);}

.detail-toggle{display:inline-flex;align-items:center;gap:6px;font-family:var(--font-body);font-size:.78rem;font-weight:500;color:var(--blue);border:1px solid var(--blue);padding:4px 14px;border-radius:var(--radius);cursor:pointer;background:transparent;margin-top:8px;transition:all .15s;user-select:none;}
.detail-toggle:hover{background:var(--blue);color:#fff;}
.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:12px;padding:14px 18px;background:var(--paper-2);border:1px solid var(--border);border-radius:var(--radius);color:var(--ink-mid);font-size:.94rem;}

.stitch-table{width:100%;border-collapse:collapse;margin:16px 0;font-size:.92rem;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);}
.stitch-table th{background:var(--ink);color:var(--chalk);padding:10px 14px;text-align:left;font-family:var(--font-mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;}
.stitch-table td{padding:9px 14px;border-bottom:1px solid var(--border-light);vertical-align:top;}
.stitch-table tr:nth-child(even) td{background:var(--paper-2);}
.stitch-table td:first-child{font-family:var(--font-mono);font-size:.8rem;color:var(--blue-2);font-weight:400;}

code{font-family:var(--font-mono);font-size:.82em;background:var(--blue-pale);color:var(--blue);padding:2px 6px;border-radius:3px;border:1px solid var(--blue-mid);}
.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:var(--ink);border-bottom:2px solid var(--blue-2);padding:12px 18px;align-items:center;justify-content:space-between;}
.mobile-menu-btn{background:none;border:none;color:var(--chalk);font-size:1.3rem;cursor:pointer;}
.mobile-title{font-family:var(--font-display);font-size:1rem;color:var(--chalk);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,.55);}
.drawer-panel{position:relative;z-index:1;width:270px;background:var(--ink);height:100%;overflow-y:auto;padding:16px 0;border-right:2px solid var(--blue);}
@media(max-width:960px){.sidebar{display:none;}.mobile-header{display:flex;}.main{padding:0 20px 70px;}h1.page-title{font-size:2.4rem;}.two-col{grid-template-columns:1fr;}}