:root {
  --ink: #17222d;
  --ink-soft: #51606b;
  --steel: #667781;
  --line: #d8e0e3;
  --paper: #f5f7f6;
  --white: #ffffff;
  --navy: #18384a;
  --navy-deep: #0d2735;
  --safety: #e4a328;
  --safety-pale: #fff5d9;
  --woven: #d9dfda;
  --max: 1180px;
  --radius: 6px;
  --shadow: 0 18px 48px rgba(20, 42, 54, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Avenir Next", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; }
:focus-visible { outline: 3px solid var(--safety); outline-offset: 3px; }

.skip-link {
  position: fixed; left: 16px; top: -80px; z-index: 100;
  padding: 10px 14px; background: var(--navy-deep); color: var(--white);
}
.skip-link:focus { top: 16px; }
.shell { width: min(calc(100% - 40px), var(--max)); margin: 0 auto; }
.topline { border-bottom: 1px solid rgba(255,255,255,.15); color: #dce7ea; background: var(--navy-deep); font-size: 12px; letter-spacing: .02em; }
.topline .shell { min-height: 34px; display:flex; align-items:center; justify-content:space-between; gap: 20px; }
.topline a { text-decoration: none; }
.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.96); backdrop-filter: blur(12px); }
.nav-wrap { min-height: 76px; display:flex; align-items:center; justify-content:space-between; gap: 24px; }
.brand { display:inline-flex; align-items: baseline; gap: 10px; text-decoration:none; white-space:nowrap; }
.brand-mark { width: 25px; height: 25px; display:inline-grid; place-items:center; background: var(--safety); color: var(--navy-deep); font-size: 13px; font-weight: 800; }
.brand-name { font-size: 18px; font-weight: 760; letter-spacing: -.02em; }
.brand-sub { color: var(--steel); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; }
.nav-toggle { display:none; border: 1px solid var(--line); background: var(--white); min-width: 42px; min-height:42px; cursor:pointer; }
.nav-links { display:flex; align-items:center; gap: 23px; font-size: 14px; }
.nav-links a { text-decoration:none; color: var(--ink-soft); }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--navy); }
.nav-cta { padding: 11px 15px; color: var(--white) !important; background: var(--navy); }
.nav-cta:hover { background: var(--navy-deep); }

.hero { position:relative; min-height: 620px; display:flex; align-items:center; overflow:hidden; color: var(--white); background: var(--navy-deep); }
.hero-media { position:absolute; inset:0; background-image: linear-gradient(90deg, rgba(13,39,53,.96) 0%, rgba(13,39,53,.78) 42%, rgba(13,39,53,.26) 100%), url("big-bag-reference.jpg"); background-position:center; background-size:cover; }
.hero-grid { position:relative; z-index:1; display:grid; grid-template-columns: minmax(0, 1.1fr) minmax(280px, .65fr); gap: 52px; align-items:end; padding: 112px 0 82px; }
.hero h1 { max-width: 780px; margin: 0 0 26px; font-size: clamp(42px, 6vw, 78px); line-height: .98; letter-spacing: -.055em; font-weight: 740; }
.hero p { max-width: 610px; margin: 0; color: #dce6e9; font-size: clamp(18px, 2vw, 22px); line-height:1.5; }
.hero-actions { display:flex; flex-wrap:wrap; gap: 12px; margin-top: 34px; }
.hero-aside { align-self:end; border-left: 1px solid rgba(255,255,255,.42); padding-left: 20px; }
.hero-aside strong { display:block; color: var(--safety); font-size: 13px; text-transform:uppercase; letter-spacing:.13em; }
.hero-aside p { font-size: 15px; margin-top: 9px; }
.button { display:inline-flex; align-items:center; justify-content:center; min-height: 48px; padding: 12px 19px; border: 1px solid transparent; border-radius: var(--radius); cursor:pointer; text-decoration:none; font-size: 14px; font-weight: 700; letter-spacing: .01em; transition: transform .2s ease, background .2s ease, border-color .2s ease; }
.button:hover { transform: translateY(-1px); }
.button-primary { color: var(--navy-deep); background: var(--safety); }
.button-primary:hover { background: #f0b83d; }
.button-light { color: var(--navy-deep); background: var(--white); }
.button-light:hover { background: #eef3f2; }
.button-outline { border-color: var(--navy); color: var(--navy); background: transparent; }
.button-outline:hover { color: var(--white); background: var(--navy); }
.button-full { width:100%; }

.spec-rail { border-bottom: 1px solid var(--line); background: var(--white); }
.spec-rail .shell { display:grid; grid-template-columns: repeat(8, 1fr); }
.spec-item { min-height: 108px; display:flex; flex-direction:column; justify-content:center; padding: 17px 14px; border-right: 1px solid var(--line); }
.spec-item:first-child { border-left: 1px solid var(--line); }
.spec-label { color: var(--steel); font-size: 11px; letter-spacing: .11em; text-transform:uppercase; }
.spec-value { margin-top: 4px; font-size: 15px; font-weight: 700; }

.section { padding: 100px 0; }
.section-tight { padding: 70px 0; }
.section-dark { color: var(--white); background: var(--navy-deep); }
.section-steel { background: #e9eeee; }
.section-heading { max-width: 760px; margin-bottom: 46px; }
.section-heading h2, .page-hero h1 { margin: 0 0 15px; font-size: clamp(34px, 4vw, 56px); line-height: 1.06; letter-spacing: -.04em; }
.section-heading p { margin: 0; color: var(--ink-soft); font-size: 18px; }
.section-dark .section-heading p { color: #c9d6d9; }
.kicker { margin-bottom: 12px; color: var(--safety); font-size: 12px; font-weight: 760; letter-spacing: .14em; text-transform:uppercase; }
.split { display:grid; grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr); gap: 70px; align-items:center; }
.split-reverse { grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr); }
.media-frame { overflow:hidden; border-radius: var(--radius); background: var(--woven); box-shadow: var(--shadow); }
.media-frame img { width:100%; height:100%; min-height: 350px; object-fit:cover; }
.media-caption { padding: 10px 14px; color: var(--steel); background: var(--white); font-size: 12px; }
.text-link { display:inline-flex; gap: 10px; align-items:center; margin-top: 24px; color: var(--navy); font-size: 14px; font-weight: 760; text-decoration:none; }
.text-link::after { content: "->"; color: var(--safety); }
.text-link:hover { color: var(--safety); }

.rail-list { display:grid; grid-template-columns: repeat(4, 1fr); border-top:1px solid var(--line); border-left:1px solid var(--line); }
.rail-list > * { padding: 23px; border-right:1px solid var(--line); border-bottom:1px solid var(--line); background: var(--white); }
.rail-list h3 { margin: 0 0 8px; font-size: 17px; }
.rail-list p { margin:0; color: var(--ink-soft); font-size:14px; }
.feature-list { display:grid; grid-template-columns: repeat(2, 1fr); gap: 0 30px; margin: 27px 0 0; padding:0; list-style:none; }
.feature-list li { position:relative; padding: 13px 0 13px 27px; border-top: 1px solid var(--line); color: var(--ink-soft); }
.feature-list li::before { content:""; position:absolute; left:0; top: 22px; width: 10px; height: 2px; background: var(--safety); }
.dark-list li { color:#d4e0e2; border-color: rgba(255,255,255,.16); }

.process { display:grid; grid-template-columns: repeat(4,1fr); gap: 18px; counter-reset: step; }
.process-item { position:relative; padding: 26px 24px; border-top: 2px solid var(--safety); background: rgba(255,255,255,.06); }
.process-item::before { counter-increment: step; content: "0" counter(step); display:block; margin-bottom: 28px; color:var(--safety); font-size: 13px; font-weight: 800; letter-spacing:.12em; }
.process-item h3 { margin:0 0 8px; font-size: 18px; }
.process-item p { margin:0; color:#c4d2d5; font-size: 14px; }

.page-hero { padding: 95px 0 80px; color: var(--white); background: var(--navy-deep); }
.page-hero .shell { display:grid; grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr); gap: 60px; align-items:end; }
.page-hero h1 { max-width: 760px; font-size: clamp(42px, 6vw, 72px); }
.page-hero p { max-width: 620px; margin:0; color:#d2dfe1; font-size:19px; }
.page-hero-note { justify-self:end; max-width: 280px; border-left: 1px solid var(--safety); padding-left: 18px; color:#d2dfe1; font-size:14px; }
.page-hero-note strong { display:block; margin-bottom:7px; color:var(--safety); font-size:12px; letter-spacing:.13em; text-transform:uppercase; }

.product-table { width:100%; border-collapse:collapse; background:var(--white); }
.product-table th, .product-table td { padding: 16px 18px; border:1px solid var(--line); text-align:left; vertical-align:top; }
.product-table th { width: 26%; color:var(--navy); font-size:13px; letter-spacing:.07em; text-transform:uppercase; background:#edf2f1; }
.product-table td { color:var(--ink-soft); }
.notice { display:flex; gap:14px; align-items:flex-start; margin-top: 25px; padding: 17px 18px; border-left: 4px solid var(--safety); color: #68511e; background: var(--safety-pale); font-size:14px; }
.notice strong { color:var(--navy); }

.application-grid { display:grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.application-item { min-height: 190px; display:flex; flex-direction:column; justify-content:flex-end; padding: 24px; color:var(--white); background:var(--navy); }
.application-item:nth-child(2n) { background:#2e4d5c; }
.application-item:nth-child(3n) { background:#4d5e60; }
.application-item h3 { margin:0 0 6px; font-size:20px; }
.application-item p { margin:0; color:#dbe5e5; font-size:14px; }

.quote-layout { display:grid; grid-template-columns: minmax(0, .74fr) minmax(0, 1.26fr); gap: 50px; align-items:start; }
.quote-panel { padding: 30px; background: var(--white); box-shadow: var(--shadow); }
.form-grid { display:grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.field { display:flex; flex-direction:column; gap:7px; }
.field-full { grid-column: 1 / -1; }
.field label { color:var(--navy); font-size:13px; font-weight:700; }
.field label span { color:var(--safety); }
.field input, .field select, .field textarea { width:100%; padding: 12px 13px; border:1px solid #c7d2d5; border-radius:3px; color:var(--ink); background:#fbfcfc; }
.field textarea { min-height: 125px; resize:vertical; }
.field input:focus, .field select:focus, .field textarea:focus { border-color:var(--navy); outline: 3px solid rgba(228,163,40,.28); }
.details { margin-top: 22px; border-top:1px solid var(--line); }
.details summary { padding: 17px 0; color:var(--navy); cursor:pointer; font-weight:700; }
.details[open] summary { margin-bottom: 4px; }
.form-note { margin: 15px 0 0; color:var(--steel); font-size: 12px; }
.form-status { min-height: 26px; margin: 15px 0 0; color:var(--navy); font-size:14px; }
.form-status.error { color:#9b2c2c; }
.contact-list { margin: 30px 0 0; padding:0; list-style:none; }
.contact-list li { padding: 14px 0; border-top:1px solid var(--line); }
.contact-list strong { display:block; color:var(--navy); font-size:13px; text-transform:uppercase; letter-spacing:.08em; }
.contact-list a { color:var(--navy); font-weight:700; text-decoration:none; }

.site-footer { padding: 58px 0 28px; color:#c8d6d9; background:var(--navy-deep); }
.footer-grid { display:grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 40px; }
.site-footer .brand-name { color:var(--white); }
.site-footer .brand-sub { color:#9db1b6; }
.site-footer p { max-width: 390px; margin: 20px 0 0; font-size:14px; }
.footer-links { display:flex; flex-direction:column; gap:9px; font-size:14px; }
.footer-links a { color:#d6e1e3; text-decoration:none; }
.footer-links a:hover { color:var(--safety); }
.footer-bottom { display:flex; justify-content:space-between; gap: 20px; margin-top: 48px; padding-top: 19px; border-top:1px solid rgba(255,255,255,.15); color:#91a5aa; font-size:12px; }

.not-found { min-height: 65vh; display:grid; place-items:center; text-align:center; }
.not-found h1 { margin:0 0 12px; font-size: clamp(50px, 8vw, 96px); }
.thank-you { min-height: 65vh; display:flex; align-items:center; }

@media (max-width: 980px) {
  .nav-toggle { display:block; }
  .nav-links { position:absolute; left:20px; right:20px; top: 72px; display:none; flex-direction:column; align-items:stretch; gap:0; padding: 8px; border:1px solid var(--line); background:var(--white); box-shadow:var(--shadow); }
  .nav-links.is-open { display:flex; }
  .nav-links a { padding: 12px 13px; }
  .hero-grid, .page-hero .shell, .split, .split-reverse, .quote-layout { grid-template-columns:1fr; gap: 36px; }
  .hero { min-height: auto; }
  .hero-grid { padding: 90px 0 72px; }
  .hero-aside, .page-hero-note { justify-self:start; }
  .spec-rail .shell { overflow-x:auto; grid-template-columns: repeat(8, minmax(120px, 1fr)); }
  .spec-item { min-height: 92px; }
  .rail-list { grid-template-columns: repeat(2,1fr); }
  .process { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 640px) {
  .shell { width:min(calc(100% - 28px), var(--max)); }
  .topline .shell { min-height: 40px; }
  .topline .shell span:last-child { display:none; }
  .brand-sub { display:none; }
  .hero h1 { font-size: 48px; }
  .hero p, .page-hero p { font-size:17px; }
  .section { padding: 72px 0; }
  .section-tight { padding: 54px 0; }
  .page-hero { padding: 70px 0 60px; }
  .section-heading { margin-bottom: 32px; }
  .rail-list, .application-grid, .process, .form-grid, .footer-grid { grid-template-columns:1fr; }
  .feature-list { grid-template-columns:1fr; }
  .quote-panel { padding: 21px; }
  .field-full { grid-column:auto; }
  .footer-bottom { flex-direction:column; gap:7px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior:auto !important; transition:none !important; animation:none !important; }
}