/* Rio Grid site styles
   Palette from the equipment: tank green-gray, ANSI 61 gray, copper windings, warm off-white. */
:root {
  --bg: #1C221E;
  --bg-2: #232A26;
  --bg-3: #2B332E;
  --ink: #EEEAE0;
  --ink-2: #B9BFB8;
  --ink-3: #8D958F;
  --copper: #C9843F;
  --copper-2: #E2A363;
  --line: rgba(238, 234, 224, 0.14);
  --line-2: rgba(238, 234, 224, 0.30);
  --max: 1180px;
  --gutter: 24px;
  --font: "Archivo", "Arial Narrow", Arial, Helvetica, sans-serif;
}
@media (max-width: 640px) { :root { --gutter: 16px; } }

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { animation: none !important; transition: none !important; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.55;
  font-variation-settings: "wdth" 100;
  font-feature-settings: "tnum" 1;
}
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--copper-2); }
:focus-visible { outline: 2px solid var(--copper-2); outline-offset: 3px; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.01em; line-height: 1.05; }
h1 { font-variation-settings: "wdth" 78; font-size: clamp(40px, 6vw, 72px); }
h2 { font-variation-settings: "wdth" 82; font-size: clamp(28px, 3.4vw, 40px); }
h3 { font-variation-settings: "wdth" 90; font-size: 22px; }
p { margin: 0 0 1em; }
.muted { color: var(--ink-2); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }

/* Header */
.site-header { padding: 22px 0; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand svg { width: 34px; height: 34px; }
.brand span { font-variation-settings: "wdth" 80; font-weight: 600; font-size: 22px; letter-spacing: 0.01em; white-space: nowrap; }
.nw { white-space: nowrap; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav a { text-decoration: none; font-size: 16px; color: var(--ink-2); }
.nav a:hover { color: var(--ink); }
.nav a[aria-current="page"] { color: var(--ink); }

/* Buttons */
.btn {
  display: inline-block; padding: 13px 20px; border-radius: 6px;
  background: var(--copper); color: #1A1410; text-decoration: none; font-weight: 600; font-size: 16px;
  border: 1px solid transparent; cursor: pointer; font-family: inherit; line-height: 1.2;
}
.btn:hover { background: var(--copper-2); color: #1A1410; }
.btn.secondary { background: transparent; color: var(--ink); border-color: var(--line-2); }
.btn.secondary:hover { border-color: var(--ink); background: transparent; }
.nav .btn { padding: 10px 16px; font-size: 15px; white-space: nowrap; }
@media (max-width: 480px) { .site-header { padding: 16px 0; } .nav { gap: 14px; } .nav a { font-size: 15px; } .nav .btn { padding: 9px 12px; font-size: 14px; } .brand span { font-size: 20px; } .brand svg { width: 28px; height: 28px; } }

/* Hero */
.hero { padding: 36px 0 20px; }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 32px; align-items: center; }
.hero h1 { max-width: 14ch; }
.hero .lede { font-size: 19px; max-width: 42ch; margin: 22px 0 28px; color: var(--ink-2); }
.hero .actions { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.hero .art { position: relative; }
.hero .art img { width: 100%; height: auto; }
@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; gap: 8px; }
  .hero .art { margin: 0 calc(-1 * var(--gutter)); }
}

/* Trust strip, ruled like datasheet rows */
.strip { margin: 28px 0 0; border-top: 1px solid var(--line-2); }
.strip ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(6, 1fr); }
.strip li { padding: 16px 16px 18px 0; font-size: 15px; line-height: 1.4; color: var(--ink-2); border-bottom: 1px solid var(--line); }
.strip li strong { display: block; color: var(--ink); font-weight: 600; margin-bottom: 3px; }
@media (max-width: 1000px) { .strip ul { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 600px) { .strip ul { grid-template-columns: repeat(2, 1fr); } .strip li { font-size: 14px; } }

/* Sections */
.section { padding: 64px 0 8px; }
.section-head { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: 24px; align-items: end; margin-bottom: 28px; }
.section-head p { margin: 0; color: var(--ink-2); max-width: 60ch; }
@media (max-width: 760px) { .section-head { grid-template-columns: 1fr; gap: 10px; } }

/* Segments */
.segments { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line-2); }
.segment { padding: 22px 20px 26px 0; border-bottom: 1px solid var(--line); }
.segment + .segment { }
.segment h3 { margin-bottom: 10px; }
.segment p { margin: 0; color: var(--ink-2); font-size: 16px; }
.segment.lead h3::before { content: ""; display: block; width: 36px; height: 3px; background: var(--copper); margin-bottom: 14px; }
.segment:not(.lead) h3::before { content: ""; display: block; width: 36px; height: 3px; background: var(--line-2); margin-bottom: 14px; }
@media (max-width: 900px) { .segments { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .segments { grid-template-columns: 1fr; } }

/* Nameplate list (label : value rows) */
.plate { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line-2); }
.plate li { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 9fr); gap: 20px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.plate li span:first-child { color: var(--ink-3); }
.plate li span:last-child { color: var(--ink); }
@media (max-width: 640px) { .plate li { grid-template-columns: 1fr; gap: 2px; } }

/* CTA band */
.cta { margin: 72px 0 0; padding: 48px 0; border-top: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2); background: var(--bg-2); }
.cta .wrap { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 24px; align-items: center; }
.cta h2 { max-width: 18ch; }
.cta .actions { display: flex; gap: 14px; justify-content: flex-end; flex-wrap: wrap; }
@media (max-width: 760px) { .cta .wrap { grid-template-columns: 1fr; } .cta .actions { justify-content: flex-start; } }

/* Footer */
.site-footer { padding: 36px 0 44px; color: var(--ink-3); font-size: 15px; }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.site-footer a { color: var(--ink-2); text-decoration: none; }
.site-footer a:hover { color: var(--copper-2); }
.site-footer .cols { display: flex; gap: 40px; flex-wrap: wrap; }

/* Products page */
.page-head { padding: 28px 0 10px; }
.page-head h1 { font-size: clamp(36px, 5vw, 60px); max-width: 16ch; }
.page-head p { margin-top: 18px; max-width: 60ch; color: var(--ink-2); font-size: 18px; }
.line { padding: 56px 0 12px; border-top: 1px solid var(--line-2); margin-top: 40px; }
.line:first-of-type { margin-top: 24px; }
.line .head { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 32px; margin-bottom: 26px; }
.line .head p { color: var(--ink-2); margin: 14px 0 0; max-width: 56ch; }
.line .head .code { color: var(--ink-3); font-size: 15px; margin-bottom: 10px; }
.line .actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 26px; }
@media (max-width: 800px) { .line .head { grid-template-columns: 1fr; gap: 12px; } }
.also { padding: 56px 0 24px; border-top: 1px solid var(--line-2); margin-top: 40px; }
.also ul { list-style: none; padding: 0; margin: 18px 0 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 40px; }
.also li { padding: 12px 0; border-bottom: 1px solid var(--line); color: var(--ink-2); }
.also li strong { color: var(--ink); font-weight: 600; }
@media (max-width: 700px) { .also ul { grid-template-columns: 1fr; } }

/* Quote form */
.quote .wrap { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: 48px; padding-bottom: 40px; }
.quote aside p { color: var(--ink-2); }
.quote aside .plate li { grid-template-columns: 1fr; gap: 2px; padding: 10px 0; }
@media (max-width: 860px) { .quote .wrap { grid-template-columns: 1fr; gap: 20px; } }
form { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 20px; }
.field { display: grid; gap: 6px; }
.field.wide { grid-column: 1 / -1; }
label { font-size: 15px; color: var(--ink-2); }
label .req { color: var(--copper-2); }
input, select, textarea {
  width: 100%; font: inherit; color: var(--ink); background: var(--bg-2);
  border: 1px solid var(--line-2); border-radius: 6px; padding: 12px 14px; font-size: 16px;
}
input::placeholder, textarea::placeholder { color: var(--ink-3); }
select { appearance: none; -webkit-appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--ink-2) 50%), linear-gradient(135deg, var(--ink-2) 50%, transparent 50%); background-position: calc(100% - 20px) 50%, calc(100% - 14px) 50%; background-size: 6px 6px, 6px 6px; background-repeat: no-repeat; padding-right: 40px; }
textarea { min-height: 120px; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--copper-2); outline: none; }
.field .hint { font-size: 14px; color: var(--ink-3); }
.field.error input, .field.error select { border-color: #D9705C; }
.field .err { font-size: 14px; color: #E59A8A; display: none; }
.field.error .err { display: block; }
.form-foot { grid-column: 1 / -1; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-top: 6px; }
.form-foot .note { font-size: 14px; color: var(--ink-3); max-width: 46ch; }
.hp { position: absolute; left: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden; }
.form-status { grid-column: 1 / -1; color: #E59A8A; display: none; }
.form-status.show { display: block; }
@media (max-width: 640px) { form { grid-template-columns: 1fr; } }

/* Simple pages */
.prose { max-width: 68ch; padding: 20px 0 60px; }
.prose h1 { font-size: clamp(34px, 5vw, 56px); margin-bottom: 18px; }
.prose h2 { font-size: 24px; margin: 32px 0 10px; }
.prose p, .prose li { color: var(--ink-2); }
.prose .big { font-size: 20px; color: var(--ink); }