/* www.orbisholding.com v2 · "Quiet green" (owner, 2026-10-29).
   The logo carries the brand green; the site stays neutral. Green appears
   only in links, buttons, thin rules and one highlight on dark bands.
   System fonts only: no external requests. */

:root {
  --charcoal: #1d262b;   /* dark bands: hero, footer */
  --ink: #1f2629;        /* text and headings */
  --muted: #5a6468;
  --paper: #ffffff;
  --band: #f5f7f6;       /* alternate section background */
  --line: #e3e8e6;
  --green: #2f7a57;      /* accent: deeper than the logo green (#388d66) for text contrast */
  --green-hover: #25664a;
  --highlight: #8fd0ae;  /* green on charcoal */
  --on-dark: #c9d2d0;

  --font-display: Cambria, "Source Serif 4", Georgia, "Times New Roman", serif;
  --font-body: Calibri, Carlito, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --measure: 64ch;
  --gutter: max(20px, env(safe-area-inset-left, 0px));
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--font-body); font-size: 18px; line-height: 1.6; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--green); text-underline-offset: 3px; }
a:hover { color: var(--green-hover); }
a:focus-visible, .button:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 2px; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.2; text-wrap: balance; margin: 0; color: var(--ink); }
h1 { font-size: clamp(2rem, 4.5vw, 2.9rem); }
h2 { font-size: clamp(1.5rem, 3vw, 1.9rem); }
h3 { font-size: 1.15rem; }
p { margin: 0; max-width: var(--measure); }

.container { max-width: 1100px; margin: 0 auto; padding-left: var(--gutter); padding-right: max(20px, env(safe-area-inset-right, 0px)); }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; background: var(--paper); padding: 8px 12px; z-index: 10; }

/* Header */
.site-header { border-bottom: 1px solid var(--line); background: var(--paper); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 12px 32px; flex-wrap: wrap; padding-block: 14px; }
.brand img { width: 128px; }
.site-nav ul { display: flex; flex-wrap: wrap; gap: 6px 24px; list-style: none; margin: 0; padding: 0; font-size: 0.95rem; }
.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); }
.site-nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--green); }

/* Dark band */
.hero { background: var(--charcoal); color: #fff; }
.hero .container { display: grid; gap: 18px; padding-block: 72px 80px; }
.hero h1 { color: #fff; max-width: 18ch; }
.hero p { color: var(--on-dark); font-size: 1.12rem; }
.kicker { font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 700; color: var(--highlight); }
.button { justify-self: start; display: inline-block; background: var(--green); color: #fff; text-decoration: none; font-weight: 700; padding: 11px 22px; border-radius: 4px; }
.button:hover { background: var(--green-hover); color: #fff; }

/* Sections */
.section .container { display: grid; gap: 28px; padding-block: 64px; }
.section.alt { background: var(--band); }
.section-head { display: grid; gap: 10px; }
.section-head p { color: var(--muted); }

.capabilities { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 32px 40px; margin: 0; }
.capabilities div { display: grid; gap: 8px; align-content: start; padding-top: 16px; border-top: 2px solid var(--green); }
.capabilities dt { font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; }
.capabilities dd { margin: 0; color: var(--muted); }

.principles { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr)); gap: 28px 36px; list-style: none; margin: 0; padding: 0; }
.principles li { display: grid; gap: 6px; align-content: start; }
.principles b { font-family: var(--font-display); font-size: 1.08rem; }
.principles span { color: var(--muted); }

.products { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); gap: 24px; }
.product { display: grid; gap: 10px; align-content: start; background: var(--paper); border: 1px solid var(--line); border-radius: 6px; padding: 26px; }
.product h3 { font-size: 1.35rem; }
.product p { color: var(--muted); }
.product a { font-weight: 700; text-decoration: none; }
.product a:hover { text-decoration: underline; }

.subhead { font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; font-family: var(--font-body); color: var(--muted); margin-bottom: -12px; }
.earlier { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 28px 40px; }
.earlier article { display: grid; gap: 6px; align-content: start; padding-top: 14px; border-top: 1px solid var(--line); scroll-margin-top: 16px; }
.earlier h4 { font-family: var(--font-display); font-size: 1.15rem; margin: 0; }
.earlier .tag { font-size: 0.85rem; font-weight: 700; color: var(--green); }
.earlier p { color: var(--muted); }
.earlier article:target { border-top: 2px solid var(--green); }

/* Contact */
.offices { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 28px 40px; }
.offices address { font-style: normal; display: grid; gap: 2px; color: var(--muted); }
.offices address b { color: var(--ink); font-family: var(--font-display); font-size: 1.08rem; margin-bottom: 4px; }
.email { font-size: 1.25rem; font-weight: 700; }

/* Plain text pages */
.page .container { display: grid; gap: 20px; padding-block: 64px 80px; }

/* Footer */
.site-footer { background: var(--charcoal); color: var(--on-dark); font-size: 0.9rem; }
.site-footer .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; padding-block: 24px; }
.site-footer a { color: var(--on-dark); }
.site-footer a:hover { color: #fff; }