/* ============================================================
   Hilkon Management & Consultancy — Palette A (charcoal + emerald)
   Pure CSS, no framework. Mobile-first.
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  /* Palette C — Slate + Gold (refined, executive) */
  --color-primary:    #2C3E50;   /* dark slate, body + nav */
  --color-bg:         #FFFFFF;   /* white */
  --color-accent:     #C9A961;   /* champagne gold — CTAs, hover */
  --color-accent-dk:  #A8893E;   /* deeper gold, hover state */
  --color-subtle:     #E6E0D0;   /* parchment dividers */
  --color-section:    #F4F1EA;   /* parchment, alternating section bg */
  --color-muted:      #6B7785;   /* slate-gray secondary text */
  --color-border:     #D7D0BD;

  --font-display: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --maxw: 1180px;
  --gap: 24px;
  --radius: 4px;
  --shadow-sm: 0 1px 3px rgba(14, 31, 26, 0.06);
  --shadow-md: 0 4px 12px rgba(14, 31, 26, 0.08);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-primary);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-accent); text-decoration: none; transition: color .15s; }
a:hover { color: var(--color-accent-dk); }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.2; margin: 0 0 .5em; color: var(--color-primary); letter-spacing: -0.02em; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 248, 0.95);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { width: 40px; height: 40px; border-radius: 2px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-family: var(--font-display); font-size: 0.95rem; font-weight: 700; color: var(--color-primary); }
.brand-text span { font-size: 0.75rem; color: var(--color-muted); letter-spacing: 0.06em; text-transform: uppercase; }

.site-nav { display: flex; align-items: center; gap: 32px; }
.site-nav ul { list-style: none; display: flex; gap: 28px; margin: 0; padding: 0; }
.site-nav a {
  color: var(--color-primary);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: border-color .15s, color .15s;
}
.site-nav a:hover, .site-nav a.is-active { color: var(--color-accent); border-bottom-color: var(--color-accent); }

.lang-switch { display: flex; gap: 4px; font-size: 0.85rem; }
.lang-switch a { padding: 4px 8px; color: var(--color-muted); border-radius: 3px; }
.lang-switch a.is-active { background: var(--color-primary); color: var(--color-bg); }

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  cursor: pointer;
  padding: 8px;
  color: var(--color-primary);
}
.nav-toggle svg { width: 28px; height: 28px; }

/* ---------- Hero ---------- */
.hero {
  padding: 96px 0 80px;
  background:
    radial-gradient(circle at 80% 20%, rgba(46, 139, 87, 0.06) 0%, transparent 50%),
    linear-gradient(180deg, var(--color-bg) 0%, var(--color-section) 100%);
}
.hero .container { max-width: 880px; }
.hero h1 {
  margin-bottom: 24px;
}
.hero .lead {
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: var(--color-muted);
  max-width: 640px;
  margin-bottom: 32px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s, transform .15s;
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-accent-dk);
  color: #fff;
  transform: translateY(-1px);
}
.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-bg);
}

/* ---------- Sections ---------- */
section { padding: 80px 0; }
section.section-alt { background: var(--color-section); }
.section-head { max-width: 700px; margin: 0 auto 56px; text-align: center; }
.section-head .eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 12px;
}
.section-head p { color: var(--color-muted); font-size: 1.05rem; }

/* ---------- Service grid ---------- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.service-card {
  background: var(--color-bg);
  padding: 32px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  transition: border-color .15s, transform .15s, box-shadow .15s;
}
.service-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.service-card .icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-primary);
  color: var(--color-accent);
  border-radius: var(--radius);
  margin-bottom: 20px;
}
.service-card .icon svg { width: 24px; height: 24px; }
.service-card h3 { margin-bottom: 12px; font-size: 1.15rem; }
.service-card p { color: var(--color-muted); font-size: 0.95rem; margin-bottom: 16px; }
.service-card .more {
  color: var(--color-accent);
  font-size: 0.9rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.service-card .more::after { content: "→"; transition: transform .15s; }
.service-card:hover .more::after { transform: translateX(4px); }

/* ---------- Approach / methodology ---------- */
.approach { display: grid; grid-template-columns: 1.4fr 1fr; gap: 64px; align-items: center; }
.approach .approach-text h2 { margin-bottom: 20px; }
.approach .approach-text p { color: var(--color-muted); margin-bottom: 16px; }
.approach .approach-visual {
  background: var(--color-primary);
  color: var(--color-bg);
  padding: 40px;
  border-radius: var(--radius);
  border-left: 4px solid var(--color-accent);
}
.approach .approach-visual h3 { color: var(--color-bg); font-size: 1.05rem; margin-bottom: 24px; }
.approach .approach-visual ul { list-style: none; padding: 0; margin: 0; }
.approach .approach-visual li {
  padding: 12px 0;
  border-bottom: 1px solid rgba(250, 250, 248, 0.12);
  font-size: 0.95rem;
}
.approach .approach-visual li:last-child { border-bottom: 0; }
.approach .approach-visual li::before { content: "—"; color: var(--color-accent); margin-right: 12px; }

/* ---------- CTA strip ---------- */
.cta-strip {
  background: var(--color-primary);
  color: var(--color-bg);
  padding: 64px 0;
  text-align: center;
}
.cta-strip h2 { color: var(--color-bg); margin-bottom: 12px; }
.cta-strip p { color: rgba(250, 250, 248, 0.75); margin-bottom: 28px; max-width: 540px; margin-left: auto; margin-right: auto; }

/* ---------- Service detail (diensten page) ---------- */
.service-detail {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 28px;
  padding: 40px 0;
  border-bottom: 1px solid var(--color-border);
}
.service-detail:last-child { border-bottom: 0; }
.service-detail .icon {
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-primary);
  color: var(--color-accent);
  border-radius: var(--radius);
}
.service-detail .icon svg { width: 28px; height: 28px; }
.service-detail h2 { font-size: 1.4rem; margin-bottom: 12px; }
.service-detail p { color: var(--color-muted); margin-bottom: 14px; }
.service-detail ul { padding-left: 20px; color: var(--color-muted); }
.service-detail li { margin-bottom: 8px; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; }
.contact-info h2 { margin-bottom: 16px; }
.contact-info p { color: var(--color-muted); margin-bottom: 32px; }
.contact-info .detail { margin-bottom: 24px; }
.contact-info .detail .label { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-muted); margin-bottom: 4px; }
.contact-info .detail .value { font-size: 1.05rem; color: var(--color-primary); font-weight: 500; }
.contact-info .detail a { color: var(--color-primary); }
.contact-info .detail a:hover { color: var(--color-accent); }

form { display: flex; flex-direction: column; gap: 16px; }
form label { font-size: 0.85rem; font-weight: 500; color: var(--color-primary); display: block; margin-bottom: 6px; }
form input, form textarea {
  width: 100%;
  padding: 12px 14px;
  font-family: inherit;
  font-size: 0.95rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-primary);
  transition: border-color .15s;
}
form input:focus, form textarea:focus { outline: none; border-color: var(--color-accent); }
form textarea { min-height: 140px; resize: vertical; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-primary);
  color: rgba(250, 250, 248, 0.7);
  padding: 56px 0 28px;
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 40px;
}
.site-footer h4 { color: var(--color-bg); font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 16px; }
.site-footer a { color: rgba(250, 250, 248, 0.75); }
.site-footer a:hover { color: var(--color-accent); }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer ul li { margin-bottom: 8px; }
.footer-bottom {
  border-top: 1px solid rgba(250, 250, 248, 0.12);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
}

/* ---------- Mobile ---------- */
@media (max-width: 860px) {
  .site-nav ul { display: none; }
  .nav-toggle { display: flex; }
  .site-nav.is-open ul {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px; left: 0; right: 0;
    background: var(--color-bg);
    padding: 24px;
    border-bottom: 1px solid var(--color-border);
    gap: 16px;
  }
  .approach { grid-template-columns: 1fr; gap: 32px; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero { padding: 64px 0 56px; }
  section { padding: 56px 0; }
}