:root{
  --steel:#22384f;
  --steel-d:#16273a;
  --red:#c8321f;
  --red-d:#9e2413;
  --gray:#eef1f4;
  --ink:#222c36;
  --mut:#5a6a78;
  --line:#d7dee5;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Trebuchet MS",Verdana,Geneva,sans-serif;color:var(--ink);background:#fff;line-height:1.7}
.wrap{max-width:1080px;margin:0 auto;padding:0 1.25rem}

/* Header */
.hdr{background:var(--steel-d);color:#fff;position:sticky;top:0;z-index:50}
.hdr-row{display:flex;justify-content:space-between;align-items:center;padding:.7rem 1.25rem;gap:1rem}
.co{font-weight:700;letter-spacing:.06em;font-size:.98rem}
.amp{color:#f0b429;font-weight:400}
.hdr-call{background:var(--red);color:#fff;text-decoration:none;font-weight:700;padding:.5rem 1rem;border-radius:.4rem;white-space:nowrap}
.hdr-call:hover{background:var(--red-d)}

/* Buttons */
.btn{display:inline-block;text-decoration:none;border-radius:.4rem;padding:.78rem 1.5rem;font-weight:700;cursor:pointer;border:2px solid transparent}
.red{background:var(--red);color:#fff;border:none}
.red:hover{background:var(--red-d)}
.line{border-color:var(--red);color:var(--red)}
.line:hover{background:rgba(200,50,31,.1)}
form .red{width:100%;font-size:1.05rem}
.btn-row{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.4rem}

/* Banner */
.banner{background:linear-gradient(120deg,var(--steel) 0%,var(--steel-d) 75%);color:#fff;padding:2.6rem 0}
.banner-row{display:grid;gap:2rem;align-items:center}
.eyebrow{color:#f0b429;font-weight:700;text-transform:uppercase;letter-spacing:.13em;font-size:.8rem;margin-bottom:.7rem}
.banner h1{font-size:2.15rem;line-height:1.22;margin-bottom:1rem}
.intro{color:#d6dde4;font-size:1.08rem}
.banner-img img{width:100%;height:auto;border-radius:.5rem;border:3px solid #3a5069;display:block}

/* Sections */
.sec{padding:2.8rem 0}
.tint{background:var(--gray)}
.sec h2{font-size:1.7rem;color:var(--steel-d);margin-bottom:.9rem}
.sec p{margin-bottom:1rem;max-width:48rem}

/* Diagnostics */
.diag{display:grid;gap:1rem;margin-top:1.4rem}
.diag article{background:#fff;border:1px solid var(--line);border-radius:.5rem;padding:1.15rem 1.25rem;border-left:5px solid var(--red)}
.diag h3{font-size:1.05rem;color:var(--steel-d);margin-bottom:.4rem}
.code{background:var(--steel);color:#fff;font-size:.8rem;padding:.15rem .5rem;border-radius:.3rem;margin-right:.5rem;font-weight:700}
.diag p{margin:0;color:var(--mut);font-size:.96rem}

/* Maintenance list */
.maint{list-style:none;margin:1.2rem 0;max-width:48rem}
.maint li{background:#fff;border:1px solid var(--line);border-radius:.4rem;padding:.8rem 1rem .8rem 2.6rem;margin-bottom:.6rem;position:relative}
.maint li::before{content:"✓";position:absolute;left:1rem;top:.8rem;color:var(--red);font-weight:800}
.mid-img{max-width:48rem;margin:1.6rem 0}
.mid-img img{width:100%;height:auto;border-radius:.5rem;display:block;border:3px solid var(--line)}

/* Process */
.process{list-style:none;counter-reset:p;margin-top:1.2rem;display:grid;gap:1rem;max-width:48rem}
.process li{background:#fff;border:1px solid var(--line);border-radius:.5rem;padding:1rem 1.2rem 1rem 3.6rem;position:relative;counter-increment:p}
.process li::before{content:counter(p);position:absolute;left:1.2rem;top:1rem;background:var(--red);color:#fff;width:1.7rem;height:1.7rem;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:.9rem}

/* FAQ */
details{background:#fff;border:1px solid var(--line);border-radius:.45rem;margin-bottom:.65rem;padding:.85rem 1.05rem;max-width:48rem}
summary{font-weight:700;cursor:pointer;color:var(--steel-d)}
details p{margin:.55rem 0 0;color:var(--mut);font-size:.96rem}

/* Chips */
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:.6rem;margin-top:.9rem}
.chips li{background:var(--steel);color:#fff;padding:.5rem 1rem;border-radius:.35rem;font-weight:600;font-size:.94rem}

/* Profile */
.profile{background:#fff;border:1px solid var(--line);border-radius:.5rem;padding:1.3rem 1.4rem;max-width:48rem}
.profile p{margin-bottom:.45rem}
.small{font-size:.88rem;color:var(--mut)}

/* Form */
form{background:#fff;border:1.5px solid var(--line);border-radius:.5rem;padding:1.5rem;max-width:42rem;margin-top:1.1rem}
.frow{margin-bottom:1rem}
.frow label{display:block;font-weight:700;margin-bottom:.3rem;color:var(--steel-d)}
.frow input,.frow textarea{width:100%;padding:.65rem .8rem;border:1.5px solid var(--line);border-radius:.35rem;font-size:1rem;font-family:inherit}
.frow input:focus,.frow textarea:focus{outline:2px solid var(--red);border-color:var(--red)}

/* Footer */
.ftr{background:var(--steel-d);color:#b9c3cd;padding:1.7rem 0;margin-top:1rem}
.ftr a{color:#f0b429}
.ftr p{margin-bottom:.25rem;font-size:.94rem}

/* Sticky */
.sticky{display:none;position:fixed;bottom:1rem;left:1rem;right:1rem;z-index:60;background:var(--red);color:#fff;text-align:center;font-weight:800;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){
  .banner-row{grid-template-columns:1.05fr .95fr}
  .banner h1{font-size:2.55rem}
  .diag{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:849px){
  .sticky{display:block}
  body{padding-bottom:4.2rem}
}