:root{
  --ink:#141a22;
  --navy:#1b2f4b;
  --gold:#c9a227;
  --gold-lt:#f3e6bd;
  --cyan:#39c2d7;
  --paper:#fbfaf6;
  --shade:#f1eee4;
  --mut:#5d6a7a;
  --line:#e2dccb;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Georgia,"Times New Roman",serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:1.05rem}
.wrap{max-width:1000px;margin:0 auto;padding:0 1.4rem}

/* Masthead */
.mast{background:var(--ink);color:#fff;position:sticky;top:0;z-index:50}
.mast-row{display:flex;justify-content:space-between;align-items:center;padding:.7rem 1.4rem;gap:1rem;flex-wrap:wrap}
.wordmark{font-weight:700;letter-spacing:.05em}
.wordmark span{color:var(--gold);font-weight:400;font-size:.9em}
.mast-nav{display:flex;gap:1.1rem;align-items:center}
.mast-nav a{color:#dfe4ea;text-decoration:none;font-size:.95rem;font-family:Verdana,sans-serif}
.mast-nav a:hover{color:var(--gold)}
.mast-call{background:var(--gold);color:var(--ink)!important;font-weight:700;padding:.45rem .95rem;border-radius:.4rem}

/* Buttons */
.btn{display:inline-block;text-decoration:none;border-radius:.4rem;padding:.8rem 1.6rem;font-weight:700;font-family:Verdana,sans-serif;cursor:pointer;border:2px solid transparent}
.gold{background:var(--gold);color:var(--ink);border:none}
.gold:hover{background:#a9861d}
.ghost{border-color:rgba(255,255,255,.6);color:#fff}
.ghost:hover{background:rgba(255,255,255,.12)}
.cover-cta{display:flex;flex-wrap:wrap;gap:.8rem;margin:1.5rem 0 1rem}
form .gold{width:100%;font-size:1.05rem}

/* Cover */
.cover{background:linear-gradient(160deg,var(--navy) 0%,var(--ink) 80%);color:#fff;padding:3rem 0}
.cover-grid{display:grid;gap:2.2rem;align-items:center}
.eyebrow{color:var(--cyan);font-family:Verdana,sans-serif;font-weight:700;text-transform:uppercase;letter-spacing:.14em;font-size:.8rem;margin-bottom:.8rem}
.cover h1{font-size:2.25rem;line-height:1.22;margin-bottom:1rem}
.deck{color:#d7dde5;font-size:1.1rem;max-width:36rem}
.cover-meta{font-family:Verdana,sans-serif;font-size:.83rem;color:#93a1b1}
.cover-img img{width:100%;height:auto;border-radius:.5rem;border:3px solid #2c3e57;display:block}
.cover-img figcaption{font-family:Verdana,sans-serif;font-size:.82rem;color:#93a1b1;margin-top:.5rem}

/* Chapters */
.chapter{padding:3rem 0}
.shade{background:var(--shade)}
.ch-num{font-family:Verdana,sans-serif;color:var(--gold);font-weight:800;font-size:.85rem;letter-spacing:.2em;margin-bottom:.3rem}
.chapter h2{font-size:1.8rem;margin-bottom:1.1rem;color:var(--ink)}
.shade .chapter h2,.chapter.shade h2{color:var(--ink)}
.chapter p{margin-bottom:1.05rem;max-width:46rem}
.cols{display:grid;gap:0 2.2rem}
.cols h3{font-size:1.2rem;color:var(--navy);margin:.4rem 0 .4rem}
.aside{background:var(--gold-lt);border-left:5px solid var(--gold);padding:1rem 1.25rem;border-radius:.35rem;max-width:46rem;font-family:Verdana,sans-serif;font-size:.96rem}
.aside p{margin:0}

/* Sequence */
.sequence{list-style:none;counter-reset:s;margin:1.2rem 0;max-width:46rem;display:grid;gap:.8rem}
.sequence li{background:#fff;border:1px solid var(--line);border-radius:.45rem;padding:.9rem 1.1rem .9rem 3.4rem;position:relative;counter-increment:s;font-family:Verdana,sans-serif;font-size:.97rem}
.sequence li::before{content:counter(s);position:absolute;left:1.1rem;top:.9rem;background:var(--navy);color:var(--cyan);width:1.6rem;height:1.6rem;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:.85rem}

/* Install list */
.install-list{list-style:none;max-width:46rem;margin:1.2rem 0;display:grid;gap:.8rem}
.install-list li{background:#fff;border:1px solid var(--line);border-radius:.45rem;padding:.9rem 1.15rem;font-family:Verdana,sans-serif;font-size:.97rem}
.install-list li strong{color:var(--navy)}

/* FAQ */
details{background:#fff;border:1px solid var(--line);border-radius:.45rem;margin-bottom:.65rem;padding:.9rem 1.1rem;max-width:46rem}
summary{font-weight:700;cursor:pointer;font-family:Verdana,sans-serif;font-size:1rem}
details p{margin:.55rem 0 0;font-family:Verdana,sans-serif;font-size:.95rem;color:var(--mut)}

/* Towns */
.towns{list-style:none;display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1rem}
.towns li{background:var(--navy);color:#fff;padding:.55rem 1.1rem;border-radius:.35rem;font-family:Verdana,sans-serif;font-weight:600;font-size:.93rem}

/* Card */
.card{background:#fff;border:1px solid var(--line);border-top:5px solid var(--gold);border-radius:.45rem;padding:1.4rem 1.5rem;max-width:46rem}
.card p{margin-bottom:.5rem;font-family:Verdana,sans-serif;font-size:.98rem}
.muted{font-size:.88rem;color:var(--mut)}

/* Form */
form{background:#fff;border:1.5px solid var(--line);border-radius:.5rem;padding:1.6rem;max-width:42rem;margin-top:1.2rem}
form label{display:block;font-weight:700;margin-bottom:1rem;font-family:Verdana,sans-serif;font-size:.97rem;color:var(--navy)}
form input,form textarea{display:block;width:100%;margin-top:.3rem;padding:.65rem .8rem;border:1.5px solid var(--line);border-radius:.35rem;font-size:1rem;font-family:Verdana,sans-serif}
form input:focus,form textarea:focus{outline:2px solid var(--gold);border-color:var(--gold)}
form .gold{margin-top:.4rem}

/* Footer */
.ftr{background:var(--ink);color:#a9b3bf;padding:1.7rem 0;margin-top:1rem}
.ftr a{color:var(--gold)}
.ftr p{font-family:Verdana,sans-serif;font-size:.93rem;margin-bottom:.25rem}

/* Sticky */
.sticky{display:none;position:fixed;bottom:1rem;left:1rem;right:1rem;z-index:60;background:var(--gold);color:var(--ink);text-align:center;font-weight:800;font-family:Verdana,sans-serif;font-size:1.1rem;padding:.85rem;border-radius:.55rem;text-decoration:none;box-shadow:0 4px 16px rgba(0,0,0,.4)}

@media(min-width:850px){
  .cover-grid{grid-template-columns:1.05fr .95fr}
  .cover h1{font-size:2.7rem}
  .cols{grid-template-columns:1fr 1fr}
  .sequence{grid-column:1/-1;grid-template-columns:repeat(2,1fr)}
}
@media(max-width:849px){
  .sticky{display:block}
  body{padding-bottom:4.2rem}
}