/* droDUdo holding B.V. — 2026 */

:root {
  --blue: #0741ad;
  --blue-deep: #062f7d;
  --blue-ink: #0a1b3d;
  --ink: #12203a;
  --muted: #56637d;
  --line: #dfe5f0;
  --line-soft: #eef2f8;
  --tint: #f5f8fd;
  --white: #fff;
  --maxw: 1120px;
  --pad: clamp(20px, 5vw, 48px);
  --sans: "Helvetica Neue", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

*, *::before, *::after { 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;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; }
a { color: var(--blue); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad); }

:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
  border-radius: 1px;
}
.contact :focus-visible { outline-color: #8fb0ff; }

.skip {
  position: absolute; left: -9999px; top: 0;
  background: #0741ad; color: #fff; padding: 12px 18px; z-index: 100;
}
.skip:focus { left: 0; }

/* ---------- header ---------- */

.site-head {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line-soft);
}
.head-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; height: 72px;
}
.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; color: var(--blue); }
.brand .mark { width: 30px; height: 30px; display: block; }
.brand .word { width: 108px; height: auto; display: block; }

.nav { display: flex; align-items: center; gap: 28px; }
.nav a {
  color: var(--ink); text-decoration: none; font-size: 15px;
  letter-spacing: .01em; padding: 6px 0; border-bottom: 1px solid transparent;
}
.nav a:hover, .nav a:focus-visible { color: var(--blue); border-bottom-color: var(--blue); }

.lang {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; letter-spacing: .06em; text-transform: uppercase;
  padding-left: 22px; margin-left: -6px;
  border-left: 1px solid var(--line);
}
.lang a { color: var(--muted); text-decoration: none; }
.lang a:hover { color: var(--blue); }
.lang [aria-current="true"] { color: var(--blue-ink); font-weight: 700; }

.nav-toggle { display: none; }

/* ---------- hero ---------- */

.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(168deg, var(--tint) 0%, #fff 62%);
  border-bottom: 1px solid var(--line-soft);
}
.hero-inner {
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  gap: clamp(32px, 6vw, 72px); align-items: center;
  padding-top: clamp(64px, 10vw, 128px);
  padding-bottom: clamp(56px, 9vw, 112px);
}
.eyebrow {
  font-family: var(--mono); font-size: 12.5px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--blue); margin: 0 0 22px;
}
h1 {
  font-size: clamp(34px, 5.4vw, 60px); line-height: 1.06;
  letter-spacing: -.028em; font-weight: 700; margin: 0 0 24px;
  color: var(--blue-ink);
}
.lede { font-size: clamp(17px, 1.5vw, 20px); color: var(--muted); margin: 0 0 36px; max-width: 46ch; }

.actions { display: flex; flex-wrap: wrap; gap: 14px; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 26px; border-radius: 2px; text-decoration: none;
  font-size: 15.5px; font-weight: 600; letter-spacing: .01em;
  transition: background .18s ease, color .18s ease, border-color .18s ease, transform .18s ease;
}
.btn-primary { background: var(--blue); color: #fff; border: 1px solid var(--blue); }
.btn-primary:hover { background: var(--blue-deep); border-color: var(--blue-deep); }
.btn-ghost { background: transparent; color: var(--blue-ink); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn .arrow { transition: transform .18s ease; }
.btn:hover .arrow { transform: translateX(3px); }

.hero-mark { display: flex; justify-content: center; }
.hero-mark img { width: min(300px, 78%); height: auto; }

/* ---------- sections ---------- */

section { padding: clamp(64px, 9vw, 112px) 0; }
section + section { border-top: 1px solid var(--line-soft); }

.sec-head { max-width: 620px; margin: 0 0 clamp(36px, 5vw, 56px); }
.sec-label {
  font-family: var(--mono); font-size: 12.5px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--blue); margin: 0 0 16px;
}
h2 {
  font-size: clamp(26px, 3.3vw, 38px); line-height: 1.16; letter-spacing: -.022em;
  font-weight: 700; margin: 0 0 16px; color: var(--blue-ink);
}
h3 { font-size: 19px; line-height: 1.3; letter-spacing: -.012em; margin: 0 0 10px; color: var(--blue-ink); }
.sec-head p { color: var(--muted); margin: 0; font-size: 17.5px; }
.sec-head-flush { margin-bottom: 0; }

/* activity cards */

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.card {
  background: #fff; padding: 36px 30px 34px;
  transition: background .2s ease;
}
.card:hover { background: var(--tint); }
.card .num {
  font-family: var(--mono); font-size: 12.5px; letter-spacing: .12em;
  color: var(--blue); display: block; margin-bottom: 22px;
}
.card p { color: var(--muted); margin: 0; font-size: 16px; }
.card p + p { margin-top: 12px; }

/* approach */

.approach { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(28px, 4vw, 52px); }
.approach > div { border-top: 2px solid var(--blue); padding-top: 22px; }
.approach p { color: var(--muted); margin: 0; font-size: 16px; }

/* facts */

.facts-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: clamp(32px, 6vw, 72px); align-items: start; }
dl.facts { margin: 0; }
dl.facts > div {
  display: grid; grid-template-columns: minmax(140px, 34%) 1fr; gap: 16px;
  padding: 15px 0; border-bottom: 1px solid var(--line-soft);
}
dl.facts > div:first-child { border-top: 1px solid var(--line-soft); }
dl.facts dt { color: var(--muted); font-size: 15px; margin: 0; }
dl.facts dd { margin: 0; font-size: 16px; color: var(--blue-ink); font-weight: 500; }

/* contact */

.contact { background: var(--blue-ink); color: #fff; border-top: 0; }
.contact h2 { color: #fff; }
.contact .sec-label { color: #8fb0ff; }
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(32px, 6vw, 64px); align-items: start; }
.contact p { color: #b9c6e0; }
.mailto {
  display: inline-block; color: #fff; text-decoration: none;
  font-size: clamp(22px, 2.8vw, 32px); font-weight: 700; letter-spacing: -.02em;
  border-bottom: 2px solid rgba(255, 255, 255, .35); padding-bottom: 4px;
}
.mailto:hover { border-bottom-color: #fff; }
.addr { font-style: normal; color: #b9c6e0; font-size: 16.5px; line-height: 1.8; margin-top: 28px; }
.addr strong { color: #fff; font-weight: 600; }

/* footer */

.site-foot { padding: 34px 0; border-top: 1px solid var(--line-soft); font-size: 14px; color: var(--muted); }
.foot-inner { display: flex; flex-wrap: wrap; gap: 12px 28px; align-items: center; justify-content: space-between; }
.site-foot a { color: var(--muted); text-decoration: none; }
.site-foot a:hover { color: var(--blue); text-decoration: underline; }

/* ---------- responsive ---------- */

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-mark { order: -1; justify-content: flex-start; }
  .hero-mark img { width: 116px; }
  .cards, .approach, .facts-grid, .contact-grid { grid-template-columns: 1fr; }
  .cards { gap: 1px; }
  .approach { gap: 32px; }
}

@media (max-width: 680px) {
  body { font-size: 16.5px; }
  .head-inner { height: 64px; }
  .nav { gap: 18px; }
  .nav .nav-link { display: none; }
  .nav .nav-link[href$="contact"] { display: inline; }
  .brand .word { width: 92px; }
  dl.facts > div { grid-template-columns: 1fr; gap: 2px; }
}

/* ---------- dark mode ---------- */

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8edf7;
    --blue-ink: #f2f5fb;
    --muted: #9aa8c2;
    --line: #24304a;
    --line-soft: #1b2438;
    --tint: #131b2c;
    --white: #0c111c;
    --blue: #6f9bff;
    --blue-deep: #8db2ff;
  }
  body { background: #0c111c; }
  .site-head { background: rgba(12, 17, 28, .9); }
  .hero { background: linear-gradient(168deg, #141d31 0%, #0c111c 62%); }
  .card { background: #101828; }
  .card:hover { background: #141d31; }
  .btn-primary { background: var(--blue); color: #071026; border-color: var(--blue); }
  .btn-primary:hover { background: var(--blue-deep); border-color: var(--blue-deep); }
  .contact { background: #101828; }
  .contact .sec-label { color: #8fb0ff; }
}