:root{
    --ink:#1B2A4A; --paper:#F4F6F8; --card:#FFFFFF; --amber:#E8A33D; --amber-dark:#C8862A;
    --teal:#2E8B87; --muted:#667085; --line:#E1E5EA; --purple:#7C5CBF; --purple-soft:#EDE9FE;
  }
  *{box-sizing:border-box;}
  body{font-family:'Inter',sans-serif;color:var(--ink);background:var(--paper);}
  h1,h2,h3,.display-font{font-family:'Fraunces',serif;}
  .mono{font-family:'JetBrains Mono',monospace;letter-spacing:.02em;}
  .navbar-syllabus{background:var(--paper);border-bottom:1px solid var(--line);padding-top:1rem;padding-bottom:1rem;}
  .brand-mark{display:inline-flex;align-items:center;gap:.55rem;font-family:'Fraunces',serif;font-weight:600;font-size:1.35rem;color:var(--ink);text-decoration:none;}
  .brand-mark .tab{width:28px;height:28px;border-radius:6px;background:var(--ink);color:var(--paper);display:flex;align-items:center;justify-content:center;font-family:'JetBrains Mono',monospace;font-size:.8rem;font-weight:600;}
  .navbar-syllabus .nav-link{color:var(--ink);font-weight:500;margin:0 .65rem;}
  .navbar-syllabus .nav-link:hover{color:var(--teal);}
  .navbar-syllabus .nav-link.active{color:var(--teal);}
  .btn-ink{background:var(--ink);color:#fff;border-radius:8px;font-weight:600;padding:.55rem 1.2rem;border:1px solid var(--ink);}
  .btn-ink:hover{background:#132038;color:#fff;}
  .btn-outline-ink{border:1px solid var(--line);color:var(--ink);border-radius:8px;font-weight:500;padding:.55rem 1.1rem;background:transparent;}
  .btn-outline-ink:hover{border-color:var(--ink);}
  section{padding:4.5rem 0;}
  .section-head{max-width:38rem;margin-bottom:2.5rem;}
  .section-head .eyebrow{margin-bottom:.5rem;display:block;}
  .section-head h2{font-size:2.1rem;font-weight:600;margin-bottom:.6rem;}
  .section-head p{color:var(--muted);}
  .eyebrow{font-family:'JetBrains Mono',monospace;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--amber-dark);font-weight:600;}

  /* ---------- Page hero ---------- */
  .page-hero{padding:4rem 0 3rem;position:relative;overflow:hidden;border-bottom:1px solid var(--line);}
  .page-hero::before{content:"";position:absolute;top:-140px;right:-100px;width:400px;height:400px;background:radial-gradient(circle,rgba(232,163,61,.14) 0%,rgba(232,163,61,0) 70%);pointer-events:none;}
  .page-hero::after{content:"";position:absolute;bottom:-160px;left:-120px;width:360px;height:360px;background:radial-gradient(circle,rgba(46,139,135,.12) 0%,rgba(46,139,135,0) 70%);pointer-events:none;}
  .page-hero .container{position:relative;z-index:1;}
  .page-hero h1{font-size:2.7rem;font-weight:600;line-height:1.12;margin:.8rem 0 1rem;max-width:38rem;}
  .page-hero p.lead{color:var(--muted);font-size:1.08rem;max-width:36rem;}
  .jump-row{display:flex;gap:.6rem;flex-wrap:wrap;margin-top:1.6rem;}
  .jump-pill{
    font-family:'JetBrains Mono',monospace;font-size:.78rem;font-weight:600;
    background:var(--card);border:1px solid var(--line);border-radius:30px;
    padding:.5rem 1.1rem;color:var(--ink);text-decoration:none;
    display:inline-flex;align-items:center;gap:.5rem;transition:border-color .15s,color .15s,transform .15s;
  }
  .jump-pill:hover{border-color:var(--teal);color:var(--teal);transform:translateY(-2px);}
  .jump-pill i{font-size:.85rem;}

  /* ---------- Toolkit section marker ---------- */
  .toolkit-mark{
    display:flex;align-items:center;gap:1rem;margin-bottom:2.4rem;
  }
  .toolkit-mark .tk-icon{
    width:52px;height:52px;border-radius:14px;flex-shrink:0;
    display:flex;align-items:center;justify-content:center;font-size:1.4rem;
  }
  .tk-icon.stu{background:#FBEBD1;color:var(--amber-dark);}
  .tk-icon.car{background:#DFF0EF;color:var(--teal);}
  .toolkit-mark h2{font-size:1.7rem;font-weight:600;margin:0;}
  .toolkit-mark p{color:var(--muted);margin:0;font-size:.92rem;}

  /* ---------- Detail card ---------- */
  .detail-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem;}
  @media(max-width:860px){.detail-grid{grid-template-columns:1fr;}}
  .detail-card{
    background:var(--card);border:1px solid var(--line);border-radius:16px;
    padding:1.7rem;transition:transform .15s,box-shadow .15s,border-color .15s;
    display:flex;flex-direction:column;
  }
  .detail-card:hover{transform:translateY(-3px);border-color:var(--teal);box-shadow:0 18px 34px -22px rgba(27,42,74,.35);}
  .detail-card .dc-top{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:1rem;}
  .detail-card .code{font-family:'JetBrains Mono',monospace;font-size:.7rem;font-weight:600;color:var(--muted);letter-spacing:.06em;}
  .detail-card .icon-badge{width:42px;height:42px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.15rem;}
  .icon-badge.tools{background:#FBEBD1;color:var(--amber-dark);}
  .icon-badge.career{background:#DFF0EF;color:var(--teal);}
  .detail-card h3{font-size:1.15rem;font-weight:600;margin-bottom:.5rem;font-family:'Inter',sans-serif;}
  .detail-card > p.dc-desc{font-size:.9rem;color:var(--muted);margin-bottom:1.1rem;line-height:1.55;}
  .dc-list{list-style:none;padding:0;margin:0 0 0 0;display:flex;flex-direction:column;gap:.55rem;}
  .dc-list li{font-size:.84rem;color:var(--ink);display:flex;align-items:flex-start;gap:.55rem;line-height:1.45;}
  .dc-list li i{color:var(--teal);font-size:.85rem;margin-top:.2rem;flex-shrink:0;}

  hr.tk-divider{border-color:var(--line);margin:3.5rem 0;}

  .cta-banner{background:var(--ink);padding:4.5rem 0;text-align:center;}
  .cta-banner h2{color:#fff;font-size:2rem;margin-bottom:.8rem;}
  .cta-banner p{color:rgba(255,255,255,.65);font-size:.95rem;max-width:32rem;margin:0 auto 2rem;}
  .btn-amber{background:var(--amber);color:var(--ink);font-weight:700;border-radius:8px;padding:.7rem 1.8rem;border:none;font-size:.95rem;transition:background .15s;}
  .btn-amber:hover{background:var(--amber-dark);color:#fff;}
  .btn-ghost-white{border:1.5px solid rgba(255,255,255,.3);color:#fff;font-weight:600;border-radius:8px;padding:.7rem 1.5rem;font-size:.95rem;transition:border-color .15s;}
  .btn-ghost-white:hover{border-color:#fff;color:#fff;}

  footer{border-top:1px solid var(--line);padding:2.5rem 0;}
  footer .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:2.2rem;}
  footer .foot-col{border-left:1px solid var(--line);padding-left:1.8rem;}
  @media(max-width:991px){footer .footer-grid{grid-template-columns:1fr 1fr;row-gap:2rem;} footer .foot-brand{grid-column:1 / -1;} footer .foot-col{border-left:none;padding-left:0;}}
  @media(max-width:575px){footer .footer-grid{grid-template-columns:1fr;}}
  footer .brand-mark{margin-bottom:.5rem;}
  footer .foot-col h6{font-family:'JetBrains Mono',monospace;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:.9rem;}
  footer a{color:var(--ink);text-decoration:none;font-size:.9rem;display:block;margin-bottom:.55rem;}
  footer a:hover{color:var(--teal);}
  .social-row{display:flex;gap:.6rem;margin-top:.8rem;}
  .social-btn{width:32px;height:32px;border-radius:7px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:.9rem;transition:all .15s;text-decoration:none;}
  .social-btn:hover{border-color:var(--teal);color:var(--teal);}
  :focus-visible{outline:2px solid var(--teal);outline-offset:2px;}
  @media(prefers-reduced-motion:reduce){*{transition:none !important;}}