:root {
  --bg: #0f1419;
  --bg-2: #141b23;
  --card: #1a222c;
  --ink: #eef2f6;
  --ink-2: #b4bfca;
  --line: #2c3845;
  --accent: #e0a944;
  --max: 1280px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: clamp(16px, 0.45vw + 10px, 19px); }
body {
  margin: 0;
  font: 1rem/1.6 -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 1.5rem; }

header {
  position: sticky; top: 0; z-index: 10;
  background: rgba(15, 20, 25, .92); backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
header .wrap { display: flex; align-items: center; justify-content: space-between; height: 3.6rem; }
.brand { font-weight: 700; font-size: 1.1rem; letter-spacing: .02em; color: var(--ink); white-space: nowrap; }
.brand { display: flex; align-items: center; }
/* logo.png: horizontal serif variant of the Marobud logo, in the page ink for the dark header */
.brand img { display: block; height: 2.9rem; width: auto; }
nav a { color: var(--ink-2); margin-left: 1.5rem; font-size: .95rem; }
nav a:hover { color: var(--ink); text-decoration: none; }
nav .lang { border: 1px solid var(--line); border-radius: 4px; padding: .1rem .5rem; }

.eyebrow { font-size: .75rem; letter-spacing: .16em; text-transform: uppercase; color: var(--accent); margin: 0 0 .9rem; font-weight: 600; }

.hero { padding: 6rem 0 5.5rem;
  background:
    linear-gradient(to right, rgba(255,255,255,.035) 1px, transparent 1px) 0 0 / 4rem 4rem,
    linear-gradient(to bottom, rgba(255,255,255,.035) 1px, transparent 1px) 0 0 / 4rem 4rem,
    radial-gradient(1100px 500px at 15% 10%, #1c2733 0%, var(--bg) 70%); }
.hero .eyebrow { margin-bottom: 1.2rem; font-size: .75rem; line-height: 1.6; color: var(--accent); max-width: none; }
.hero h1 { font-size: clamp(2.1rem, 3.4vw, 3.4rem); line-height: 1.1; margin: 0 0 1.4rem; max-width: 22ch; letter-spacing: -.015em; }
.hero p { font-size: 1.2rem; line-height: 1.55; color: var(--ink-2); max-width: 58ch; margin: 0; }

section { padding: 4.5rem 0; }
section:nth-of-type(odd) { background: var(--bg-2); }
section h2 { font-size: 2.1rem; margin: 0 0 .8rem; letter-spacing: -.015em; }
section .lead { color: var(--ink-2); font-size: 1.12rem; max-width: 64ch; margin: 0 0 2.4rem; }

.acronym { font-size: 1.12rem; color: var(--ink-2); max-width: 64ch; margin: 0 0 1.2rem; padding-left: 1rem;
  border-left: 3px solid var(--accent); line-height: 1.5; }
.acronym b { color: var(--ink); font-weight: 700; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.4rem; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 1.7rem 1.7rem 1.3rem; }
.card h3 { margin: 0 0 .6rem; font-size: 1.2rem; }
.card p { margin: 0; color: var(--ink); font-size: 1rem; }
.card p + ul { margin-top: 1rem; }
.card ul { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.card li { font-size: .95rem; color: var(--ink-2); padding: .55rem 0 .55rem 1.1rem; position: relative; border-bottom: 1px solid var(--line); }
.card li:last-child { border-bottom: 0; }
.card li::before { content: ""; position: absolute; left: 0; top: 1.05rem; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

.note { font-size: .92rem; color: var(--ink-2); max-width: 72ch; margin: 2rem 0 0; }

.btn { display: inline-block; background: var(--accent); color: #111; font-weight: 600; font-size: 1.05rem;
  padding: .8rem 1.6rem; border-radius: 6px; }
.btn:hover { text-decoration: none; filter: brightness(1.08); }
.cta { text-align: center; padding: 4.5rem 0; }
.cta .lead { max-width: none; margin-bottom: 1.3rem; font-size: 1.4rem; color: var(--ink); }

footer { padding: 2rem 0 3rem; color: var(--ink-2); font-size: .9rem; border-top: 1px solid var(--line); }
footer .wrap { display: flex; flex-wrap: wrap; gap: .8rem 2rem; justify-content: space-between; }

@media (max-width: 640px) {
  header .wrap { height: auto; flex-direction: column; align-items: flex-start; gap: .4rem; padding: .7rem 1.25rem; }
  nav { display: flex; flex-wrap: wrap; gap: .4rem 1rem; }
  nav a { margin-left: 0; font-size: .9rem; }
  .hero { padding: 3.5rem 0 3rem; }
  section, .cta { padding: 3rem 0; }
}