/* AD Internet Consulting BV — company site.
   Self-contained: system fonts only, zero external requests. */

:root {
  --ink: #22302e;
  --muted: #55645f;
  --soft: #7b8a85;
  --accent: #1d7a6b;
  --accent-dark: #14574c;
  --deep: #0f3d36;
  --paper: #fdfbf6;
  --card: #ffffff;
  --line: #e6dfd0;
  --warm: #f7ecd4;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.7;
}

.wrap { max-width: 72rem; margin: 0 auto; padding: 0 1.5rem; }

h1, h2, h3, .display {
  font-family: Georgia, "Palatino Linotype", "Book Antiqua", serif;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--ink);
}

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

header.site { background: linear-gradient(180deg, var(--warm), var(--paper)); }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1.8rem 0 1rem;
}

.brand img {
  width: 280px;
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  display: block;
}

nav.main { display: flex; gap: 0.4rem; }

nav.main a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.5rem 1rem;
  border-radius: 999px;
}

nav.main a:hover { background: rgba(255, 255, 255, 0.9); color: var(--accent-dark); }
nav.main a.active { background: var(--card); color: var(--accent-dark); box-shadow: 0 6px 18px rgba(34, 48, 46, 0.08); }

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

.hero { padding: 5.5rem 0 6rem; }

.hero .kicker { font-size: 0.82rem; }

.hero h1 {
  margin-top: 1rem;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.08;
  max-width: 18ch;
}

.hero p.lead {
  margin-top: 1.6rem;
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--muted);
  max-width: 52ch;
}

.hero .actions { margin-top: 2.2rem; display: flex; gap: 0.9rem; flex-wrap: wrap; }

/* ---------- shared ---------- */

section.block { padding: 4.2rem 0; }
section.block + section.block { border-top: 1px solid var(--line); }

.kicker {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); margin-top: 0.6rem; line-height: 1.2; }
h3 { font-size: 1.12rem; }

p { margin-top: 0.9rem; color: var(--muted); max-width: 66ch; }

a { color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--accent-dark); }

/* expertise grid */

.grid {
  display: grid;
  gap: 1.1rem;
  margin-top: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.cell {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.5rem 1.6rem;
  box-shadow: 0 10px 30px rgba(34, 48, 46, 0.05);
}

.cell h3 { color: var(--accent-dark); }
.cell p { margin-top: 0.5rem; font-size: 0.98rem; }

/* proof / case */

.case {
  margin-top: 2rem;
  background: linear-gradient(120deg, var(--warm), var(--card) 55%);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 2.4rem 2.4rem;
  box-shadow: 0 18px 50px rgba(34, 48, 46, 0.07);
}

.case .facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2.4rem;
  margin-top: 1.4rem;
  color: var(--soft);
  font-size: 0.92rem;
}

.case .facts strong { color: var(--accent-dark); font-size: 1.02rem; display: block; }

.btn {
  display: inline-block;
  margin-top: 1.6rem;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
}

.btn:hover { background: var(--accent-dark); color: #fff; }

.btn.ghost {
  background: transparent;
  border: 1.5px solid var(--accent);
  color: var(--accent-dark);
}

.btn.ghost:hover { background: rgba(29, 122, 107, 0.08); }

.details {
  margin-top: 1.2rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--card);
  padding: 1.2rem 1.4rem;
  color: var(--muted);
}

.details p { margin-top: 0.2rem; }
.details strong { color: var(--ink); }

/* ---------- heavyweight footer ---------- */

footer.site {
  margin-top: 4.5rem;
  background: var(--deep);
  color: rgba(255, 255, 255, 0.78);
  padding: 3rem 0 2.4rem;
  font-size: 0.95rem;
}

footer.site h3 {
  color: #fff;
  font-size: 1rem;
  letter-spacing: 0.04em;
  margin-bottom: 0.7rem;
}

footer.site .cols {
  display: grid;
  gap: 2rem 3rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

footer.site p { color: rgba(255, 255, 255, 0.78); margin-top: 0.2rem; }
footer.site a { color: rgba(255, 255, 255, 0.85); text-decoration: none; }
footer.site a:hover { color: #fff; text-decoration: underline; }
footer.site .links { display: flex; flex-direction: column; gap: 0.4rem; }

footer.site .fine {
  margin-top: 2.4rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.55);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 2rem;
  justify-content: space-between;
}