:root{
    --ink:#1F1B16;
    --parchment:#F1E7D0;
    --parchment-deep:#E7D9B8;
    --card:#FBF5E6;
    --gold:#B8863B;
    --gold-light:#D9B876;
    --maroon:#6E1F1F;
    --olive:#3C4A34;
    --line: rgba(31,27,22,0.14);
  }
  *{margin:0;padding:0;box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    background:var(--parchment);
    color:var(--ink);
    font-family:'Tajawal', sans-serif;
    line-height:1.85;
  }
  a{color:inherit;text-decoration:none;}
  ul{list-style:none;}

  /* ===== Header (matches site) ===== */
  header{
    position:sticky; top:0; z-index:50;
    background:rgba(241,231,208,0.94);
    backdrop-filter:blur(6px);
    border-bottom:1px solid var(--line);
  }
  .nav-wrap{
    max-width:1180px; margin:0 auto;
    display:flex; align-items:center; justify-content:space-between;
    padding:16px 28px;
  }
  .brand{
    display:flex; align-items:center; gap:12px;
    font-family:'Aref Ruqaa', serif;
    font-size:1.5rem; font-weight:700;
    color:var(--maroon);
  }
  .brand .mark{
    width:34px;height:34px;
    border:2px solid var(--gold);
    border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    font-family:'Tajawal',sans-serif;
    font-weight:900;font-size:.62rem;color:var(--ink);
    background:var(--parchment-deep);
  }
  nav ul{display:flex; gap:24px; font-size:.92rem; font-weight:500;}
  nav a{position:relative; padding:6px 2px; transition:color .25s;}
  nav a::after{
    content:"";position:absolute; right:0; bottom:0; width:0; height:2px;
    background:var(--gold); transition:width .3s;
  }
  nav a:hover{color:var(--maroon);}
  nav a:hover::after{width:100%;}
  nav a.active{color:var(--maroon); font-weight:700;}

  /* ===== Page hero ===== */
  .page-hero{
    max-width:1180px; margin:0 auto; padding:60px 28px 30px;
  }
  .crumbs{font-size:.85rem; color:#7a6f5c; margin-bottom:18px; display:flex; gap:8px; align-items:center;}
  .crumbs a:hover{color:var(--maroon);}
  .eyebrow{
    display:inline-flex; align-items:center; gap:10px;
    font-size:.8rem; letter-spacing:.5px; color:var(--maroon);
    border:1px solid var(--maroon); border-radius:30px;
    padding:6px 16px; margin-bottom:20px; font-weight:700;
  }
  .eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--maroon);}
  h1{
    font-family:'Amiri', serif; font-weight:700;
    font-size:2.7rem; color:var(--ink); margin-bottom:18px; line-height:1.4;
  }
  .page-hero .lead{max-width:70ch; color:#4a4136; font-size:1.06rem;}

  /* level pill row */
  .level-row{display:flex; gap:14px; margin-top:28px; flex-wrap:wrap;}
  .level-pill{
    display:flex; align-items:center; gap:10px;
    padding:10px 18px; border-radius:8px; font-size:.88rem; font-weight:700;
    border:1px solid var(--line); background:var(--card);
  }
  .level-pill.active{border-color:var(--gold); background:var(--parchment-deep); color:var(--maroon);}
  .level-pill .lvl-num{
    width:22px;height:22px;border-radius:50%;background:var(--maroon); color:var(--parchment);
    display:flex;align-items:center;justify-content:center; font-size:.72rem; font-family:'Amiri',serif;
  }
  .level-pill.active .lvl-num{background:var(--gold);}

  /* structure note box */
  .structure-note{
    max-width:1180px; margin:40px auto 0; padding:0 28px;
  }
  .structure-box{
    background:var(--ink); color:var(--parchment);
    border-radius:10px; padding:30px 32px;
    display:grid; grid-template-columns:repeat(5,1fr); gap:18px;
  }
  .structure-box .head{
    grid-column:1/-1; font-family:'Amiri', serif; font-size:1.15rem; color:var(--gold-light); margin-bottom:6px;
  }
  .struct-item{font-size:.85rem; text-align:center; padding:14px 8px; border:1px solid rgba(217,184,118,.25); border-radius:8px;}
  .struct-item .n{font-family:'Amiri', serif; color:var(--gold-light); font-size:1rem; display:block; margin-bottom:6px;}

  /* ===== Layout: TOC + articles ===== */
  .content-wrap{
    max-width:1180px; margin:0 auto; padding:60px 28px 100px;
    display:grid; grid-template-columns:260px 1fr; gap:50px; align-items:start;
  }
  .toc{
    position:sticky; top:100px;
    border-inline-start:2px solid var(--line);
    padding-inline-start:22px;
  }
  .toc h5{
    font-family:'Amiri', serif; font-size:1.05rem; margin-bottom:16px; color:var(--maroon);
  }
  .toc ol{list-style:none; counter-reset:toc;}
  .toc li{counter-increment:toc; margin-bottom:12px; font-size:.9rem;}
  .toc li a{
    display:flex; gap:8px; color:#4a4136; transition:color .2s;
  }
  .toc li a::before{
    content:counter(toc);
    font-family:'Amiri', serif; color:var(--gold); font-weight:700; min-width:16px;
  }
  .toc li a:hover{color:var(--maroon);}

  /* article cards */
  .article{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:12px;
    padding:42px 40px;
    margin-bottom:34px;
    scroll-margin-top:100px;
  }
  .article-head{display:flex; align-items:baseline; gap:16px; margin-bottom:22px;}
  .article-num{
    font-family:'Amiri', serif; font-size:2.2rem; color:var(--gold); font-weight:700; line-height:1;
  }
  .article h2{
    font-family:'Amiri', serif; font-size:1.55rem; color:var(--ink); font-weight:700;
  }
  .subhead{
    display:flex; align-items:center; gap:10px;
    font-size:.82rem; font-weight:700; color:var(--maroon);
    letter-spacing:.3px; margin:24px 0 10px;
  }
  .subhead::before{content:""; width:20px; height:1px; background:var(--maroon);}
  .article p{color:#3a332a; font-size:.98rem; margin-bottom:10px;}
  .article ul.plain{margin:10px 0 10px 0; padding-inline-start:22px;}
  .article ul.plain li{list-style:disc; color:#3a332a; font-size:.96rem; margin-bottom:6px;}

  blockquote.callout{
    border-inline-start:3px solid var(--gold);
    background:var(--parchment-deep);
    padding:14px 20px; border-radius:0 8px 8px 0;
    font-family:'Amiri', serif; font-size:1.1rem; color:var(--maroon);
    margin:14px 0;
  }

  .diagram{
    background:var(--ink); color:var(--gold-light);
    font-family:'Amiri', serif; font-size:1rem; text-align:center;
    border-radius:8px; padding:26px 20px; margin:16px 0;
    line-height:2.1;
  }
  .diagram .arrow{color:var(--parchment); opacity:.5; font-size:.85rem;}

  .flow-chain{
    display:flex; align-items:center; justify-content:center; flex-wrap:wrap;
    gap:10px; background:var(--ink); border-radius:8px; padding:24px 16px; margin:16px 0;
  }
  .flow-chain .node{
    color:var(--parchment); font-family:'Amiri', serif; font-size:1rem;
    border:1px solid var(--gold); border-radius:6px; padding:8px 16px;
  }
  .flow-chain .arrow{color:var(--gold-light); font-size:1rem;}

  .example-box{
    border:1px dashed var(--gold);
    border-radius:8px; padding:18px 20px; margin:14px 0;
    background:rgba(184,134,59,0.06);
  }
  .example-box .lbl{font-size:.78rem; font-weight:700; color:var(--gold); margin-bottom:8px; display:block;}

  .right-wrong{display:flex; flex-direction:column; gap:8px; margin:14px 0;}
  .rw-item{display:flex; gap:10px; align-items:flex-start; font-size:.96rem;}
  .rw-item .mark{font-weight:900; min-width:20px;}
  .rw-item.no .mark{color:var(--maroon);}
  .rw-item.yes .mark{color:var(--olive);}

  .refs{
    margin-top:24px; padding-top:18px; border-top:1px dotted var(--line);
  }
  .refs ul{padding-inline-start:0;}
  .refs li{font-size:.85rem; color:#6b6152; margin-bottom:6px;}
  .refs a{color:var(--maroon); font-weight:600;}
  .refs a:hover{text-decoration:underline;}

  .related{
    margin-top:20px; background:var(--parchment-deep);
    border-radius:8px; padding:16px 20px;
    font-size:.88rem; display:flex; gap:10px; flex-wrap:wrap; align-items:center;
  }
  .related .lbl{font-weight:700; color:var(--maroon);}
  .related a{
    border:1px solid var(--gold); border-radius:20px; padding:4px 14px; color:var(--ink);
    transition:background .2s, color .2s;
  }
  .related a:hover{background:var(--maroon); color:var(--parchment); border-color:var(--maroon);}

  /* general references section */
  .general-refs{
    max-width:1180px; margin:0 auto 100px; padding:0 28px;
  }
  .general-refs .box{
    background:var(--ink); color:var(--parchment); border-radius:12px; padding:40px;
  }
  .general-refs h3{font-family:'Amiri', serif; color:var(--gold-light); margin-bottom:16px; font-size:1.4rem;}
  .general-refs ul{padding-inline-start:0;}
  .general-refs li{margin-bottom:10px; font-size:.92rem; color:#cfc4ab;}
  .general-refs a{color:var(--gold-light); font-weight:600;}
  .general-refs a:hover{text-decoration:underline;}

  .next-level{
    max-width:1180px; margin:0 auto 100px; padding:0 28px;
  }
  .next-level .box{
    border:1px solid var(--gold); border-radius:12px; padding:36px 40px;
    display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:20px;
    background:var(--card);
  }
  .next-level h4{font-family:'Amiri', serif; font-size:1.3rem; margin-bottom:6px;}
  .next-level p{color:#4a4136; font-size:.92rem;}
  .btn{
    display:inline-flex; align-items:center; gap:8px;
    padding:13px 26px; border-radius:6px; font-weight:700; font-size:.92rem;
    background:var(--maroon); color:var(--parchment); white-space:nowrap;
    transition:transform .25s ease;
  }
  .btn:hover{transform:translateY(-3px);}

  footer{
    background:var(--ink); color:#cfc4ab; padding:40px 28px; text-align:center; font-size:.82rem;
  }

  @media(max-width:980px){
    nav ul{display:none;}
    .content-wrap{grid-template-columns:1fr;}
    .toc{position:static; border-inline-start:none; padding-inline-start:0; margin-bottom:20px;}
    .structure-box{grid-template-columns:repeat(2,1fr);}
    .article{padding:28px 22px;}
    h1{font-size:2rem;}
  }