/* ADC Montagewerken — Corporate Website Design System
   Rood #B71C1C (Technisch Rood), Wit #FFFFFF, Zwart #1A1A1A
   Modern industrial premium */

:root {
  --adc-red: #B71C1C;
  --adc-red-dark: #7B1212;
  --adc-white: #FFFFFF;
  --adc-black: #1A1A1A;
  --adc-grey-dark: #2D2D2D;
  --adc-grey: #4A4A4A;
  --adc-grey-light: #6B6B6B;
  --adc-bg-alt: #F5F5F5;
  --adc-border: #E5E5E5;
  --container: 1200px;
  --section-pad: 80px;
  --section-pad-mobile: 48px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--adc-grey-dark);
  background: var(--adc-white);
}

/* Typography */
h1, h2, h3 { font-weight: 700; color: var(--adc-black); }
h1 { font-size: 42px; line-height: 1.2; }
h2 { font-size: 28px; margin-bottom: 1rem; }
h3 { font-size: 22px; margin-bottom: 0.5rem; }
p { color: var(--adc-grey); margin-bottom: 1rem; }

/* Layout */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
@media (min-width: 768px) { .container { padding: 0 48px; } }
@media (min-width: 1024px) { .container { padding: 0 64px; } }

.section { padding: var(--section-pad) 0; }
@media (max-width: 767px) { .section { padding: var(--section-pad-mobile) 0; } }

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 4px;
  transition: background 0.2s, color 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--adc-red);
  color: var(--adc-white);
}
.btn-primary:hover { background: var(--adc-red-dark); }

.btn-secondary {
  background: transparent;
  color: var(--adc-white);
  border: 2px solid var(--adc-white);
}
.btn-secondary:hover { background: var(--adc-white); color: var(--adc-black); }

.btn-outline {
  background: transparent;
  color: var(--adc-red);
  border: 2px solid var(--adc-red);
}
.btn-outline:hover { background: var(--adc-red); color: var(--adc-white); }

/* Header — donker, logo is transparant PNG */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 160px;
  background: var(--adc-black);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  z-index: 100;
}

.header-inner {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 768px) { .header-inner { padding: 0 48px; } }
@media (min-width: 1024px) { .header-inner { padding: 0 64px; } }

.site-header.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,0.4); }

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo-adc { font-size: 20px; font-weight: 700; color: var(--adc-red); }
.logo-montage { font-size: 12px; font-weight: 400; color: rgba(255,255,255,0.65); margin-top: 2px; }

/* Transparant PNG logo — geen blend-mode nodig */
.logo-img {
  height: 140px;
  width: auto;
  display: block;
}

.nav-main {
  display: none;
}
@media (min-width: 768px) {
  .nav-main {
    display: flex;
    align-items: center;
    gap: 2rem;
  }
}

.nav-main a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-weight: 500;
  font-size: 15px;
}
.nav-main a:hover { color: var(--adc-red); }

.header-cta { margin-left: 1rem; }

/* Mobile menu */
.menu-toggle {
  display: block;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  font-size: 24px;
  color: var(--adc-white);
}
@media (min-width: 768px) { .menu-toggle { display: none; } }

/* Hero */
.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  background: var(--adc-black);
  color: var(--adc-white);
  padding-top: 160px;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #2a2a2a 0%, #1a1a1a 100%);
  opacity: 0.95;
}
.hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.4; }

.hero-content { position: relative; z-index: 1; }
.hero h1 { color: var(--adc-white); font-size: 36px; margin-bottom: 1rem; }
@media (min-width: 768px) { .hero h1 { font-size: 42px; } }
.hero p { color: rgba(255,255,255,0.85); font-size: 18px; margin-bottom: 1.5rem; }
.hero-btns { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Trust / cijfers */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  text-align: center;
}
@media (min-width: 768px) {
  .trust-grid { grid-template-columns: repeat(4, 1fr); }
}

.trust-item .number { font-size: 36px; font-weight: 700; color: var(--adc-red); margin-bottom: 0.25rem; }
@media (min-width: 768px) { .trust-item .number { font-size: 48px; } }
.trust-item .label { font-size: 14px; color: var(--adc-grey); }

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 768px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .card-grid.services { grid-template-columns: repeat(4, 1fr); }
}

.card {
  background: var(--adc-white);
  border: 1px solid var(--adc-border);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: box-shadow 0.2s;
}
.card:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.08); }

.card-img {
  aspect-ratio: 4/3;
  background: var(--adc-bg-alt);
  object-fit: cover;
}
.card-body { padding: 1.5rem; }
.card h3 { margin-bottom: 0.5rem; }
.card p { font-size: 15px; margin-bottom: 1rem; }
.card a { color: var(--adc-red); font-weight: 600; text-decoration: none; }
.card a:hover { text-decoration: underline; }

/* Icon grid */
.icon-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 768px) {
  .icon-grid { grid-template-columns: repeat(4, 1fr); }
}

.icon-item { text-align: center; }
.icon-item .icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 1rem;
  background: var(--adc-red);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 24px;
}
.icon-item h3 { font-size: 18px; margin-bottom: 0.5rem; }
.icon-item p { font-size: 15px; }

/* Dark section */
.section-dark {
  background: var(--adc-black);
  color: var(--adc-white);
  padding: var(--section-pad) 0;
}
.section-dark h2 { color: var(--adc-white); }
.section-dark p { color: rgba(255,255,255,0.85); }
.section-dark a { color: var(--adc-red); }
.section-dark .btn-primary { color: var(--adc-white); }
.section-dark .btn-primary:hover { color: var(--adc-white); }
.section-dark .btn-outline { color: var(--adc-white); border-color: var(--adc-white); }
.section-dark .btn-outline:hover { background: var(--adc-white); color: var(--adc-black); }

/* CTA section */
.section-cta {
  background: var(--adc-red);
  color: var(--adc-white);
  text-align: center;
  padding: var(--section-pad) 0;
}
.section-cta h2 { color: var(--adc-white); margin-bottom: 0.5rem; }
.section-cta p { color: rgba(255,255,255,0.9); margin-bottom: 1.5rem; }
.section-cta .btn-secondary { border-color: var(--adc-white); color: var(--adc-white); }
.section-cta .btn-secondary:hover { background: var(--adc-white); color: var(--adc-red); }

/* Footer */
.site-footer {
  background: var(--adc-black);
  color: var(--adc-white);
  padding: 64px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: repeat(4, 1fr); }
}

.footer-col h4 { font-size: 14px; color: var(--adc-grey-light); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 1rem; }
.footer-col a { color: rgba(255,255,255,0.85); text-decoration: none; font-size: 15px; display: block; margin-bottom: 0.5rem; }
.footer-col a:hover { color: var(--adc-red); }

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 14px;
  color: var(--adc-grey-light);
}

/* Section alt bg */
.section-alt { background: var(--adc-bg-alt); }

/* Cert logos */
.cert-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  align-items: center;
  justify-content: center;
  margin-top: 1.5rem;
}

.cert-logo {
  width: 80px;
  height: 50px;
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: rgba(255,255,255,0.7);
}

/* Form */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-weight: 500; margin-bottom: 0.5rem; font-size: 14px; }
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--adc-border);
  border-radius: 4px;
  font-size: 16px;
  font-family: inherit;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--adc-red);
}

.form-group textarea { min-height: 120px; resize: vertical; }

/* Two column layout */
.two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 768px) {
  .two-col { grid-template-columns: 1fr 1fr; }
}

/* Vacancy card */
.vacancy-card {
  padding: 1.5rem;
  border: 1px solid var(--adc-border);
  border-radius: 6px;
  margin-bottom: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}
.vacancy-card h3 { margin-bottom: 0.25rem; }
.vacancy-meta { font-size: 14px; color: var(--adc-grey); }

/* Section header */
.section-header { text-align: center; margin-bottom: 2rem; max-width: 640px; margin-left: auto; margin-right: auto; }
.section-header h2 { margin-bottom: 0.5rem; }
.section-header p { margin-bottom: 0; }

/* Mobiel: geen scrollbar (zoals echte mobiele browsers) */
@media (max-width: 768px) {
  html, body { -ms-overflow-style: none; scrollbar-width: none; }
  html::-webkit-scrollbar, body::-webkit-scrollbar { display: none; }
}