/* Meridian (jing-mai.ch) — TCM, encre & jade, flux vertical. Classes me-*. Instrument Serif + IBM Plex. */
:root{
  --ink:#23252b; --ink-2:#3a3d42; --jade:#3f8f7d; --jade-d:#2e6b5c; --cinnabar:#c0442f;
  --rice:#f4f1ea; --paper:#fbfaf6; --muted:#7a7d78; --line:#e2ddd0;
}
*{box-sizing:border-box}
html,body{margin:0;max-width:100%;overflow-x:hidden}
body{background:var(--rice);color:var(--ink);font-family:"IBM Plex Sans",system-ui,sans-serif;font-size:17px;line-height:1.72;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:"Instrument Serif",Georgia,serif;font-weight:400;line-height:1.08;margin:0;letter-spacing:.005em}
a{color:inherit}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:1080px;margin:0 auto;padding:0 26px}
.col{max-width:680px;margin:0 auto;padding:0 26px}
.eyebrow{font-family:"IBM Plex Mono",monospace;font-size:.7rem;font-weight:500;letter-spacing:.24em;text-transform:uppercase;color:var(--jade-d)}
.mono{font-family:"IBM Plex Mono",monospace}

/* ---- Header SPLIT (logo gauche / nav droite) ---- */
.me-top{border-bottom:1px solid var(--line);background:var(--rice);position:sticky;top:0;z-index:40}
.me-top__in{display:flex;align-items:center;justify-content:space-between;height:66px}
.me-brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink)}
.me-brand__m{width:26px;height:26px;flex:none}
.me-brand b{font-family:"Instrument Serif",serif;font-weight:400;font-size:1.55rem;letter-spacing:.02em}
.me-nav{display:flex;gap:28px;align-items:center}
.me-nav a{text-decoration:none;font-size:.82rem;font-weight:500;letter-spacing:.08em;color:var(--ink-2);font-family:"IBM Plex Sans"}
.me-nav a:hover,.me-nav a[aria-current]{color:var(--cinnabar)}

/* ---- Hero ---- */
.me-hero{padding:76px 0 40px;text-align:center;position:relative}
.me-hero h1{font-size:clamp(3rem,7vw,5rem);color:var(--ink);max-width:14em;margin:14px auto 0}
.me-hero h1 em{font-style:italic;color:var(--jade-d)}
.me-hero p{max-width:34em;margin:22px auto 0;color:var(--ink-2);font-size:1.14rem}
.me-hero__line{width:1px;height:52px;background:var(--jade);margin:34px auto 0;position:relative}
.me-hero__line::after{content:"";position:absolute;bottom:0;left:-4px;width:9px;height:9px;border-radius:50%;background:var(--cinnabar)}

/* ---- Spine : flux vertical à méridien ---- */
.me-spine{max-width:760px;margin:20px auto;padding:0 26px 30px;position:relative}
.me-node{position:relative;padding:34px 0 34px 58px;border-left:1px solid var(--line);margin-left:14px}
.me-node::before{content:"";position:absolute;left:-6px;top:44px;width:11px;height:11px;border-radius:50%;background:var(--rice);border:2px solid var(--jade)}
.me-node:hover::before{background:var(--jade)}
.me-node .no{font-family:"IBM Plex Mono",monospace;font-size:.82rem;color:var(--cinnabar);letter-spacing:.1em}
.me-node h3{font-size:2rem;color:var(--ink);margin:6px 0 8px}
.me-node p{color:var(--ink-2);margin:0 0 14px;max-width:40em}
.me-node ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px 22px}
.me-node li a{text-decoration:none;font-size:.92rem;color:var(--jade-d);font-weight:500;border-bottom:1px solid transparent}
.me-node li a:hover{border-color:var(--jade)}

/* ---- Journal ---- */
.me-sec{padding:40px 0}
.me-shead{text-align:center;margin-bottom:30px}
.me-shead h2{font-size:2.6rem;color:var(--ink)}
.me-shead p{color:var(--muted)}
.me-journal{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.me-post{text-decoration:none;color:inherit}
.me-post__im{aspect-ratio:4/3;background:var(--ink);background-size:cover;background-position:center;margin-bottom:14px}
.me-post .eyebrow{color:var(--jade-d)}
.me-post h3{font-size:1.6rem;color:var(--ink);margin:6px 0 4px}
.me-post p{font-size:.92rem;color:var(--muted);margin:0}

/* ---- Portrait / feature band (points) ---- */
.me-feature{background:var(--ink);color:var(--rice);padding:60px 0;margin:30px 0}
.me-feature__in{max-width:760px;margin:0 auto;padding:0 26px;text-align:center}
.me-feature .eyebrow{color:var(--jade)}
.me-feature h2{font-size:2.6rem;color:var(--rice);margin:10px 0 14px}
.me-feature p{opacity:.85;max-width:40em;margin:0 auto 20px}
.me-feature a{display:inline-block;border:1px solid var(--jade);color:var(--jade);text-decoration:none;padding:12px 26px;font-family:"IBM Plex Mono";font-size:.8rem;letter-spacing:.12em;text-transform:uppercase}
.me-feature a:hover{background:var(--jade);color:var(--ink)}

/* ---- Footer minimal ---- */
.me-foot{background:var(--ink);color:#b9beb6;padding:54px 0 28px;margin-top:40px}
.me-foot__grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:34px}
.me-foot__seal{width:44px;height:44px;margin-bottom:14px}
.me-foot__brand{font-family:"Instrument Serif",serif;font-size:1.7rem;color:var(--rice)}
.me-foot h4{font-family:"IBM Plex Mono";font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--jade);margin:0 0 12px;font-weight:500}
.me-foot a{color:#b9beb6;text-decoration:none;display:block;padding:4px 0;font-size:.92rem;opacity:.85}
.me-foot a:hover{opacity:1;color:#fff}
.me-foot__note{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:18px;font-size:.8rem;opacity:.55}

/* ===== Gabarit ARTICLE : TOC à DROITE + points numérotés ===== */
.me-prog{position:fixed;top:0;left:0;height:2px;width:0;background:var(--cinnabar);z-index:99}
.me-crumbs{font-size:.8rem;color:var(--muted);padding:22px 0 0;font-family:"IBM Plex Mono"}
.me-crumbs a{color:var(--muted);text-decoration:none}.me-crumbs a:hover{color:var(--jade-d)}
.me-arthead{padding:26px 0 30px;border-bottom:1px solid var(--line)}
.me-arthead .eyebrow{color:var(--cinnabar)}
.me-arthead h1{font-size:clamp(2.4rem,5.5vw,3.8rem);color:var(--ink);max-width:15em;margin:12px 0 0}
.me-arthead .lead{font-size:1.2rem;color:var(--ink-2);max-width:40em;margin:16px 0 14px}
.me-byline{font-family:"IBM Plex Mono";font-size:.78rem;color:var(--muted);letter-spacing:.04em}
.me-arthero{width:100%;aspect-ratio:1200/560;object-fit:cover;margin:0}
.me-artgrid{display:grid;grid-template-columns:minmax(0,1fr) 210px;gap:50px;align-items:start;padding:36px 0;max-width:1000px;margin:0 auto}
.me-toc{position:sticky;top:90px;order:2;font-family:"IBM Plex Mono";font-size:.82rem}
.me-toc h4{font-size:.66rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin:0 0 14px}
.me-toc a{display:block;color:var(--ink-2);text-decoration:none;padding:6px 0}
.me-toc a:hover{color:var(--cinnabar)}
.me-toc .n{color:var(--jade-d);margin-right:8px}
.me-prose{min-width:0;max-width:660px}
.me-prose h2{font-size:2rem;color:var(--ink);margin:40px 0 12px;position:relative;padding-left:0}
.me-prose h2 .pt{font-family:"IBM Plex Mono";font-size:.9rem;color:var(--cinnabar);vertical-align:super;margin-right:10px}
.me-prose h3{font-size:1.4rem;color:var(--jade-d);margin:28px 0 8px}
.me-prose p{margin:0 0 17px}.me-prose ul,.me-prose ol{margin:0 0 17px;padding-left:22px}.me-prose li{margin:7px 0}
.me-prose a{color:var(--jade-d);text-decoration:underline;text-underline-offset:2px}
.me-prose .lead-p::first-letter{font-family:"Instrument Serif",serif;font-size:3.6rem;float:left;line-height:.8;padding:4px 12px 0 0;color:var(--cinnabar)}
.me-steckbrief{background:var(--paper);border:1px solid var(--line);border-left:3px solid var(--jade);padding:18px 22px;margin:24px 0}
.me-steckbrief b{color:var(--jade-d)}
.me-note{background:#eef3f0;border-left:3px solid var(--jade);padding:16px 20px;margin:24px 0}
.me-note--warn{background:#f9ede9;border-left-color:var(--cinnabar)}
.me-keyfigs{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:26px 0}
.me-keyfigs div{border-top:2px solid var(--jade)}
.me-keyfigs b{font-family:"Instrument Serif",serif;font-size:2.4rem;display:block;color:var(--ink);padding-top:8px;line-height:1}
.me-keyfigs span{font-size:.82rem;color:var(--muted)}
.me-tablewrap{overflow-x:auto;margin:24px 0;border:1px solid var(--line)}
.me-table{border-collapse:collapse;width:100%;min-width:440px;font-size:.93rem}
.me-table th{background:var(--ink);color:var(--rice);text-align:left;padding:11px 14px;font-family:"IBM Plex Sans";font-weight:600}
.me-table td{padding:10px 14px;border-top:1px solid var(--line)}
.me-faq{margin:26px 0}
.me-faq details{border-bottom:1px solid var(--line)}
.me-faq summary{cursor:pointer;font-weight:600;color:var(--ink);padding:15px 0;list-style:none;position:relative;padding-right:28px;font-size:1.05rem}
.me-faq summary::after{content:"+";position:absolute;right:6px;top:13px;color:var(--cinnabar);font-size:1.3rem}
.me-faq details[open] summary::after{content:"–"}
.me-faq p{padding:0 0 15px;color:var(--ink-2);margin:0}
.me-refs{margin:34px 0 0;font-size:.86rem;color:var(--muted)}.me-refs ol{padding-left:20px}.me-refs li{margin:6px 0}
.me-related{max-width:1000px;margin:40px auto 0;padding:0 26px}
.me-related h4{font-family:"IBM Plex Mono";font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:0 0 16px}
.me-relgrid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.me-rel{text-decoration:none;color:inherit;border-top:2px solid var(--jade);padding-top:12px}
.me-rel .eyebrow{color:var(--cinnabar)}
.me-rel h3{font-size:1.5rem;color:var(--ink);margin:4px 0 0}

@media(max-width:820px){
  .me-journal,.me-foot__grid,.me-keyfigs,.me-relgrid{grid-template-columns:1fr}
  .me-artgrid{grid-template-columns:1fr}.me-toc{position:static;order:0;border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:16px}
  .me-nav{gap:16px}.me-nav a:nth-child(n+4){display:none}
}