/* ─── Design tokens (mapster.nl system) ─────────────── */
:root {
  --primary:    #13607E;
  --secondary:  #1F4F70;
  --dark:       #0a3a4d;
  --fg:         #292929;
  --bg:         #ffffff;
  --bg-alt:     #faf7f8;
  --muted:      #5a6b7a;
  --border:     #dde8ee;
  --radius:     12px;
  --shadow-sm:  4px 4px 0px rgba(19, 96, 126, 0.14);
  --shadow-md:  6px 6px 9px rgba(0, 0, 0, 0.14);
  --shadow-lg:  12px 12px 50px rgba(0, 0, 0, 0.18);
  --t:          0.22s ease;
  --nav-h:      84px;
  --nav-h-sm:   66px;
}

/* ─── Reset ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Mulish', sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ─── Container ─────────────────────────────────────── */
.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

/* ─── Typography ────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: 'Baloo Tamma 2', sans-serif;
}
h2 {
  font-size: clamp(1.7rem, 3vw, 2.25rem);
  font-weight: 700;
  color: var(--secondary);
  margin-bottom: 2rem;
  position: relative;
  padding-bottom: 1rem;
}
h2::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 40px; height: 3px;
  background: var(--primary);
  border-radius: 2px;
}
h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--secondary);
  margin-bottom: 0.55rem;
}
h4 {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary);
  margin-bottom: 0.85rem;
}
p { color: var(--muted); font-size: 0.95rem; line-height: 1.75; }
p + p { margin-top: 0.9rem; }

/* ─── Buttons ───────────────────────────────────────── */
.btn-primary,
.btn-outline {
  display: inline-block;
  padding: 0.72rem 1.75rem;
  border-radius: 9999px;
  font-family: 'Mulish', sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--t), color var(--t), border-color var(--t),
              transform var(--t), box-shadow var(--t);
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--fg);
  border-color: var(--fg);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.55);
}
.btn-outline:hover {
  background: #fff;
  border-color: #fff;
  color: var(--primary);
  transform: translateY(-2px);
}

/* ─── Nav ───────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t), box-shadow var(--t);
}
#navbar.scrolled {
  border-color: var(--border);
  box-shadow: var(--shadow-md);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 5%;
  transition: height var(--t);
}
#navbar.scrolled .nav-inner { height: var(--nav-h-sm); }

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}
.nav-logo img {
  height: 60px;
  width: auto;
  object-fit: contain;
  transition: height var(--t);
}
#navbar.scrolled .nav-logo img { height: 44px; }
.nav-brand {
  font-family: 'Baloo Tamma 2', sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--secondary);
  letter-spacing: 0.04em;
  line-height: 1;
  transition: font-size var(--t), color var(--t);
}
#navbar.scrolled .nav-brand { font-size: 1.3rem; }
.nav-logo:hover .nav-brand { color: var(--primary); }

.nav-links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}
.nav-links a {
  font-family: 'Mulish', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--muted);
  position: relative;
  transition: color var(--t);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t);
}
.nav-links a:hover,
.nav-links a.active { color: var(--primary); }
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); }

.nav-cta {
  background: var(--primary) !important;
  color: #fff !important;
  padding: 0.5rem 1.4rem;
  border-radius: 9999px;
  border: 2px solid var(--primary);
  font-weight: 700 !important;
  transition: background var(--t), border-color var(--t), color var(--t),
              box-shadow var(--t) !important;
}
.nav-cta:hover {
  background: var(--fg) !important;
  border-color: var(--fg) !important;
  color: #fff !important;
  box-shadow: var(--shadow-md) !important;
}
.nav-cta::after { display: none !important; }

/* Mobile hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--t);
}

/* ─── Hero ──────────────────────────────────────────── */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-h);
  background: linear-gradient(145deg, var(--dark) 0%, var(--secondary) 55%, var(--primary) 100%);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.055) 1.5px, transparent 1.5px);
  background-size: 28px 28px;
}
.hero-content {
  position: relative;
  z-index: 1;
  padding: 4rem 0;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4rem;
  align-items: center;
}
.hero-text { max-width: 560px; }
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Mulish', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 1.25rem;
}
.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 20px; height: 2px;
  background: rgba(255,255,255,0.5);
  border-radius: 2px;
  flex-shrink: 0;
}
.hero-text h1 {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  margin-bottom: 1.25rem;
}
.hero-sub {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 2.25rem;
  max-width: 440px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
}
.hero-visual {
  flex-shrink: 0;
}
.hero-illustration {
  width: 290px;
  height: auto;
  animation: illus-float 7s ease-in-out infinite;
  filter: drop-shadow(0 24px 48px rgba(0,0,0,0.35));
}

/* ── Illustration animations ── */
@keyframes illus-float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}

/* animated dashes on connection lines */
.conn {
  animation: conn-flow 3.5s linear infinite;
}
@keyframes conn-flow {
  to { stroke-dashoffset: -20; }
}

/* expanding pulse ring */
.pulse-ring {
  transform-box: fill-box;
  transform-origin: center;
  animation: pulse-expand 3s ease-out infinite;
}
@keyframes pulse-expand {
  0%   { transform: scale(0.85); opacity: 0.5; }
  100% { transform: scale(1.9);  opacity: 0; }
}

/* floating accent dots */
.particle {
  transform-box: fill-box;
  transform-origin: center;
  animation: particle-bob 5s ease-in-out infinite;
}
@keyframes particle-bob {
  0%, 100% { transform: translateY(0);   opacity: 0.8; }
  50%       { transform: translateY(-7px); opacity: 0.3; }
}

/* ─── Section base ──────────────────────────────────── */
section { padding: 4.5rem 0; }
.alt-bg { background: var(--bg-alt); }

/* ─── Services ──────────────────────────────────────── */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem 1.6rem;
  transition: box-shadow var(--t), transform var(--t), border-color var(--t);
}
.card:hover {
  box-shadow: var(--shadow-sm);
  transform: translate(-3px, -3px);
  border-color: rgba(19, 96, 126, 0.3);
}
.card-icon {
  width: 46px; height: 46px;
  background: rgba(19, 96, 126, 0.08);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.1rem;
  color: var(--primary);
}
.card-icon svg { width: 21px; height: 21px; }

/* ─── Expertise ─────────────────────────────────────── */
.expertise-groups {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem 4rem;
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.tag {
  background: rgba(19, 96, 126, 0.07);
  border: 1px solid rgba(19, 96, 126, 0.2);
  color: var(--primary);
  font-family: 'Mulish', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.9rem;
  border-radius: 9999px;
  cursor: default;
  transition: background var(--t), border-color var(--t), color var(--t);
}
.tag:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* ─── About ─────────────────────────────────────────── */
.about-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4rem;
  align-items: center;
}
.about-visual img {
  width: 200px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}

/* ─── Contact ───────────────────────────────────────── */
.contact-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4rem;
  align-items: start;
}
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.form-group label {
  font-family: 'Mulish', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--secondary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.form-group input,
.form-group textarea {
  font-family: 'Mulish', sans-serif;
  font-size: 0.92rem;
  color: var(--fg);
  background: #fff;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 0.7rem 0.95rem;
  outline: none;
  transition: border-color var(--t), box-shadow var(--t);
  resize: none;
  width: 100%;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #aabbc8; }
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(19, 96, 126, 0.12);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding-top: 0.5rem;
  min-width: 200px;
}
.contact-link {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 600;
  transition: color var(--t);
}
.contact-link svg {
  width: 18px; height: 18px;
  flex-shrink: 0;
  color: var(--primary);
  transition: color var(--t);
}
.contact-link:hover { color: var(--primary); }
.contact-link:hover svg { color: var(--secondary); }

/* ─── Footer ────────────────────────────────────────── */
footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.65);
  padding: 1.6rem 0;
  font-size: 0.75rem;
  font-family: 'Mulish', sans-serif;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.6rem 2rem;
}
.footer-inner > p { color: rgba(255, 255, 255, 0.7); font-weight: 600; }
.footer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 1.5rem;
}

/* ─── Responsive ────────────────────────────────────── */
@media (max-width: 960px) {
  .hero-content { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .cards { grid-template-columns: 1fr; max-width: 480px; }
  .expertise-groups { grid-template-columns: 1fr; gap: 2rem; }
  .about-inner { grid-template-columns: 1fr; }
  .about-visual { display: none; }
  .contact-inner { grid-template-columns: 1fr; gap: 2.5rem; }
}

@media (max-width: 640px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    background: #fff;
    padding: 1.5rem 5%;
    gap: 1.25rem;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--t), opacity var(--t);
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  .nav-cta { align-self: flex-start; }
  section { padding: 3.5rem 0; }
  .cards { max-width: 100%; }
  .footer-inner { flex-direction: column; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
}