:root { --paper:#eef2f4; --ink:#152028; --copper:#9a4e28; --deep:#102028; --line:#d3dde2; }
* { box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { margin:0; background:var(--paper); color:var(--ink); font-family:Athiti,sans-serif; font-size:1.12rem; line-height:1.45; }
img { max-width:100%; display:block; }
figure { margin:0; }
p,a,h1,li,figcaption { overflow-wrap:anywhere; }
a { color:var(--copper); }
h1,h2,h3 { font-family:Antonio,sans-serif; font-weight:600; line-height:.95; margin:0 0 .3em; }
header { position:sticky; top:0; z-index:20; display:flex; align-items:center; justify-content:space-between; gap:12px; padding:12px 18px; background:var(--deep); color:#eef2f4; }
.logo { color:#eef2f4; text-decoration:none; font-family:Antonio,sans-serif; font-size:1.45rem; letter-spacing:.04em; }
.nav { display:flex; gap:14px; }
.nav a { color:#eef2f4; text-decoration:none; }
.nav-toggle { display:none; background:var(--copper); color:#fff; border:0; padding:6px 10px; font:inherit; }
.pu-hero { display:grid; grid-template-columns:.7fr 1.3fr; align-items:center; background:#fff; }
.pu-hero img { width:100%; height:420px; object-fit:cover; }
.pu-hero div { padding:40px max(20px, calc((100vw - 1000px) / 2)) 40px 32px; }
.pu-hero h1 { font-size:clamp(2.6rem,6vw,4.6rem); }
.pu-hero figcaption { padding:8px 12px; }
.btn { display:inline-block; margin-top:8px; background:var(--copper); color:#fff; text-decoration:none; padding:10px 16px; }
.pu-cable img { width:100%; height:320px; object-fit:cover; }
.pu-cable figcaption { padding:10px 8vw 0; }
.pu-run { padding:14px 8vw; font-size:1.2rem; }
.pu-steps { max-width:720px; margin:0 auto; padding:10px 20px 28px; }
.pu-steps li { list-style:none; padding:12px 0 12px 16px; border-left:4px solid var(--copper); margin-bottom:10px; }
.pu-steps ul { margin:0; padding:0; }
.pu-quote { padding:40px 10vw; background:var(--deep); color:#eef2f4; }
.pu-quote p { margin:0; font-family:Antonio,sans-serif; font-size:clamp(1.7rem,3vw,2.4rem); }
.pu-ink { padding:28px 8vw; }
.pu-qa { max-width:700px; margin:0 auto; padding:8px 20px; }
.pu-qa div { display:grid; grid-template-columns:160px 1fr; gap:10px; padding:12px 0; border-top:1px solid var(--line); }
.pu-form,.pu-lead,.pu-end,.pu-close { max-width:680px; margin:0 auto; padding:24px 20px 64px; }
form { display:flex; flex-direction:column; gap:10px; }
label { font-size:.9rem; }
input,textarea { font:inherit; width:100%; padding:10px 12px; border:1px solid #c5d0d6; background:#fff; color:var(--ink); }
button[type="submit"] { font:inherit; background:var(--deep); color:#fff; border:0; padding:12px 16px; width:fit-content; cursor:pointer; }
.pu-wide { padding:20px 8vw; background:#dce7ea; font-size:1.25rem; }
.pu-pair { display:grid; grid-template-columns:1.4fr .8fr; }
.pu-pair article { padding:28px 8vw; min-width:0; }
.pu-pair article:last-child { background:var(--copper); color:#fff; }
.pu-note { margin:12px 8vw; padding:14px 16px; outline:1px dashed var(--copper); }
.pu-giant { padding:24px 6vw 0; }
.pu-giant h1 { font-size:clamp(2.8rem,8vw,6rem); }
.pu-block { padding:8px 6vw; max-width:36em; }
.pu-links { display:flex; flex-direction:column; padding:6px 6vw 18px; gap:4px; }
.pu-links a { text-decoration:none; color:var(--ink); font-size:clamp(1.05rem,2.4vw,1.55rem); }
.pu-how { padding:8px 6vw 16px; }
footer { background:var(--deep); color:#dce7ea; padding:22px 18px 30px; display:flex; justify-content:space-between; gap:12px; flex-wrap:wrap; }
footer a { color:#dce7ea; }
.modal[hidden] { display:none; }
.modal { position:fixed; inset:0; background:rgba(16,32,40,.55); display:grid; place-items:center; z-index:40; padding:20px; }
.modal div { background:#fff; padding:24px 20px; max-width:420px; width:100%; }
.modal button { font:inherit; margin-top:12px; background:var(--deep); color:#fff; border:0; padding:8px 14px; }
@media (max-width:800px) {
  .nav-toggle { display:inline-flex; }
  .nav { display:none; position:absolute; top:100%; left:0; right:0; background:var(--deep); flex-direction:column; padding:12px 18px 16px; }
  .nav.is-open { display:flex; }
  .pu-hero,.pu-pair,.pu-qa div { grid-template-columns:1fr; }
  .logo { font-size:1.05rem; }
  .pu-hero img,.pu-cable img { height:240px; }
}