/* ===========================================
   KLUSJOOP — STYLESHEET
   Mobile-first, vanilla CSS3
   =========================================== */

/* --- Zelfgehoste fonts (AVG-compliant, geen Google Fonts CDN) --- */
@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/dm-sans-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/dm-sans-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('fonts/dm-sans-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'DM Sans';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('fonts/dm-sans-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* --- Custom Properties --- */
:root {
  --kleur-achtergrond: #FFFFFF;
  --kleur-primair:     #1F2E22;
  --kleur-accent:      #D4763B;
  --kleur-tekst:       #2A2A2A;
  --kleur-licht:       #F5F2ED;
  --kleur-nav:         #FFFFFF;
  --kleur-nav-tekst:   #1F2E22;
  --kleur-donker:      #1F2E22;
  --container-max:     1200px;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'DM Sans', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--kleur-tekst);
  background-color: var(--kleur-achtergrond);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

ul { list-style: none; }

h1, h2, h3, h4 {
  line-height: 1.25;
  color: var(--kleur-primair);
}

h1 { font-size: 1.8rem; font-weight: 600; }
h2 { font-size: 1.5rem; font-weight: 600; }
h3 { font-size: 1.15rem; font-weight: 600; }

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 4px;
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-align: center;
  min-height: 48px;
  width: 100%;
  transition: opacity 0.2s ease;
}

.btn:hover { opacity: 0.85; }

.btn-primair {
  background-color: var(--kleur-accent);
  color: #FFFFFF;
}

.btn-secundair {
  background-color: transparent;
  color: #FFFFFF;
  border: 2px solid #FFFFFF;
}

/* ===========================================
   NAVIGATIE
   =========================================== */

.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--kleur-nav);
  border-bottom: 1px solid #E0DAD2;
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px 0 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 77px;
}

.nav-logo img {
  height: 74px;
  width: auto;
}

.nav-rechts {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links { display: none; }

.nav-fb {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  min-width: 40px;
  color: #1877F2;
  border-radius: 4px;
  margin-left: 24px;
  transition: opacity 0.2s;
}

.nav-fb:hover { opacity: 0.75; }

.nav-fb svg {
  width: 26px;
  height: 26px;
}

.hamburger {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.6rem;
  color: var(--kleur-nav-tekst);
  min-height: 48px;
  min-width: 48px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

/* Mobile fullscreen menu */
.mobiel-menu {
  position: fixed;
  inset: 0;
  background-color: var(--kleur-primair);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transform: translateY(-100%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobiel-menu.open { transform: translateY(0); }

.mobiel-sluiten {
  position: absolute;
  top: 16px;
  right: 20px;
  background: none;
  border: none;
  color: #FFFFFF;
  font-size: 2rem;
  cursor: pointer;
  min-height: 48px;
  min-width: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobiel-menu ul {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 36px;
}

.mobiel-menu ul a {
  color: #FFFFFF;
  font-size: 1.5rem;
  font-weight: 600;
  min-height: 48px;
  display: flex;
  align-items: center;
  transition: color 0.2s;
}

.mobiel-menu ul a.actief,
.mobiel-menu ul a:hover { color: var(--kleur-accent); }

/* ===========================================
   HERO
   =========================================== */

.hero {
  position: relative;
  min-height: 85vh;
  background-color: #1F2E22;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 30%;
  opacity: 0.75;
  filter: brightness(1.1) contrast(1.05) saturate(1.15);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 80px 20px;
}

.hero-tekst {
  display: inline-block;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border-radius: 12px;
  padding: 36px 40px;
  max-width: 620px;
}

.hero-label {
  display: inline-block;
  color: var(--kleur-accent);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.hero h1 {
  color: #FFFFFF;
  margin-bottom: 20px;
}

.hero-subtitel {
  color: rgba(255,255,255,0.82);
  font-size: 1.1rem;
  margin-bottom: 40px;
  max-width: 540px;
}

.hero-knoppen {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ===========================================
   INTRODUCTIE
   =========================================== */

.intro {
  background-color: #FFFFFF;
  padding: 60px 20px;
}

.intro-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.intro-tekst h2 { margin-bottom: 20px; }

.intro-tekst p {
  margin-bottom: 16px;
  color: var(--kleur-tekst);
}

.intro-tekst p:last-child { margin-bottom: 0; }

.intro-afbeelding img {
  width: 100%;
  border: 1px solid #E0DAD2;
  border-radius: 4px;
}

/* ===========================================
   USP-BALK
   =========================================== */

.usp {
  background-color: var(--kleur-licht);
  padding: 60px 20px;
}

.usp-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.usp-blok {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.usp-blok svg {
  width: 44px;
  height: 44px;
  color: var(--kleur-accent);
  flex-shrink: 0;
}

.usp-blok h3 { color: var(--kleur-primair); }

.usp-blok p {
  color: var(--kleur-tekst);
  font-size: 0.95rem;
}

/* ===========================================
   DIENSTEN PREVIEW
   =========================================== */

.diensten-preview {
  background-color: #FFFFFF;
  padding: 60px 20px;
}

.diensten-preview-inner {
  max-width: var(--container-max);
  margin: 0 auto;
}

.diensten-preview > .diensten-preview-inner > h2,
.diensten-preview-inner h2 { margin-bottom: 40px; }

.diensten-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 40px;
}

.dienst-kaart {
  background: #FFFFFF;
  border: 1px solid #E0DAD2;
  padding: 32px;
  border-radius: 4px;
}

.dienst-kaart svg {
  width: 40px;
  height: 40px;
  color: var(--kleur-accent);
  margin-bottom: 16px;
}

.dienst-kaart h3 {
  margin-bottom: 8px;
  color: var(--kleur-primair);
}

.dienst-kaart p {
  font-size: 0.9rem;
  color: var(--kleur-tekst);
}

.diensten-preview-cta { text-align: center; }

/* ===========================================
   PROJECTEN PREVIEW
   =========================================== */

.projecten-preview {
  background-color: var(--kleur-licht);
  padding: 60px 20px;
}

.projecten-preview-inner {
  max-width: var(--container-max);
  margin: 0 auto;
}

.projecten-preview-inner h2 { margin-bottom: 40px; }

.projecten-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 40px;
}

.project-foto {
  aspect-ratio: 1/1;
  overflow: hidden;
  border-radius: 4px;
}

.project-foto img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.project-foto:hover img { transform: scale(1.04); }

.projecten-preview-cta { text-align: center; }

/* ===========================================
   CTA-BALK
   =========================================== */

.cta-balk {
  background-color: var(--kleur-primair);
  padding: 60px 20px;
  text-align: center;
}

.cta-balk h2 {
  color: #FFFFFF;
  margin-bottom: 12px;
}

.cta-balk p {
  color: rgba(255,255,255,0.8);
  margin-bottom: 32px;
}

/* ===========================================
   FOOTER
   =========================================== */

.footer {
  background-color: var(--kleur-primair);
  padding: 60px 20px 0;
}

.footer-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.footer-logo img {
  height: 40px;
  width: auto;
  margin-bottom: 16px;
  filter: brightness(0) invert(1);
}

.footer-kolom p,
.footer-kolom a {
  color: rgba(255,255,255,0.72);
  font-size: 0.9rem;
  line-height: 1.9;
}

.footer-kolom h4 {
  color: #FFFFFF;
  font-size: 0.95rem;
  margin-bottom: 16px;
  font-weight: 600;
}

.footer-kolom ul {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-kolom ul a:hover { color: var(--kleur-accent); }

.footer-bottom {
  max-width: var(--container-max);
  margin: 0 auto;
  border-top: 1px solid rgba(255,255,255,0.12);
  margin-top: 40px;
  padding: 20px 0;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
}

/* ===========================================
   PAGINA-HEADER (subpagina's)
   =========================================== */

.pagina-header {
  background-color: var(--kleur-primair);
  padding: 60px 20px;
  text-align: center;
}

.pagina-header h1 { color: #FFFFFF; }

.pagina-header p {
  color: rgba(255,255,255,0.78);
  margin-top: 12px;
  font-size: 1.05rem;
}

/* ===========================================
   DIENSTEN PAGINA
   =========================================== */

.diensten-sectie {
  background-color: #FFFFFF;
  padding: 60px 20px;
}

.diensten-sectie-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.dienst-uitgebreid {
  background: #FFFFFF;
  border: 1px solid #E0DAD2;
  padding: 36px;
  border-radius: 4px;
}

.dienst-uitgebreid svg {
  width: 48px;
  height: 48px;
  color: var(--kleur-accent);
  margin-bottom: 20px;
}

.dienst-uitgebreid h2 {
  font-size: 1.25rem;
  margin-bottom: 14px;
  color: var(--kleur-primair);
}

.diensten-cta {
  background-color: var(--kleur-accent);
  padding: 60px 20px;
  text-align: center;
}

.diensten-cta h2 {
  color: #FFFFFF;
  margin-bottom: 12px;
}

.diensten-cta p {
  color: rgba(255,255,255,0.9);
  margin-bottom: 28px;
}

/* ===========================================
   PROJECTEN PAGINA
   =========================================== */

.projecten-sectie {
  background-color: #f5f5f3;
  padding: 40px 20px 60px;
}

.projecten-sectie-inner {
  max-width: var(--container-max);
  margin: 0 auto;
}

.projecten-volledig-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.project-item {
  overflow: hidden;
  border-radius: 6px;
  cursor: pointer;
  aspect-ratio: 4/3;
  position: relative;
}

.project-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.35s ease;
}

.project-item:hover img { transform: scale(1.05); }

.project-item:focus,
.project-item:focus-visible {
  outline: 3px solid var(--kleur-accent);
  outline-offset: 3px;
}

.projecten-categorie {
  margin-bottom: 80px;
  background: #fff;
  border: 1px solid #e0ddd8;
  border-radius: 10px;
  padding: 36px 36px 48px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.categorie-titel {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--kleur-donker);
  margin-top: 0;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--kleur-accent);
  letter-spacing: 0.01em;
}

.project-placeholder {
  background-color: #f0f0f0;
  border-radius: 4px;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #999;
  font-size: 0.9rem;
  border: 2px dashed #ccc;
}

/* ===========================================
   LIGHTBOX
   =========================================== */

.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.93);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}

.lightbox.open { display: flex; }

.lightbox-img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 4px;
}

.lightbox-sluiten {
  position: absolute;
  top: 16px;
  right: 20px;
  background: none;
  border: none;
  color: #FFFFFF;
  font-size: 2rem;
  cursor: pointer;
  min-height: 48px;
  min-width: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-pijl {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.12);
  border: none;
  color: #FFFFFF;
  font-size: 2rem;
  cursor: pointer;
  min-height: 56px;
  min-width: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: background 0.2s;
}

.lightbox-pijl:hover { background: rgba(255,255,255,0.28); }
.lightbox-pijl.links  { left: 12px; }
.lightbox-pijl.rechts { right: 12px; }

/* ===========================================
   CONTACT PAGINA
   =========================================== */

.contact-sectie {
  background-color: #FFFFFF;
  padding: 60px 20px;
}

.contact-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.contact-formulier h2 { margin-bottom: 24px; }

.formulier-veld {
  display: flex;
  flex-direction: column;
  margin-bottom: 20px;
}

.formulier-veld label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--kleur-primair);
  margin-bottom: 6px;
}

.formulier-veld input,
.formulier-veld textarea {
  border: 1px solid #E0DAD2;
  border-radius: 4px;
  padding: 12px 16px;
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
  color: var(--kleur-tekst);
  min-height: 48px;
  background-color: #FFFFFF;
  transition: border-color 0.2s;
}

.formulier-veld input:focus,
.formulier-veld textarea:focus {
  outline: 2px solid var(--kleur-accent);
  outline-offset: 2px;
  border-color: var(--kleur-accent);
}

.formulier-veld textarea {
  min-height: unset;
  resize: vertical;
}

.contact-info {
  background-color: var(--kleur-licht);
  padding: 40px;
  border-radius: 4px;
}

.contact-info h3 {
  margin-bottom: 20px;
  color: var(--kleur-primair);
}

.contact-info .btn { margin-bottom: 28px; }

.contact-gegevens {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.95rem;
  color: var(--kleur-tekst);
}

/* ===========================================
   TABLET — min-width: 768px
   =========================================== */

@media (min-width: 768px) {
  h1 { font-size: 2.2rem; }
  h2 { font-size: 1.8rem; }

  .hamburger { display: none; }

  .nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
  }

  .nav-links a {
    color: var(--kleur-nav-tekst);
    font-weight: 600;
    font-size: 0.95rem;
    padding-bottom: 4px;
    border-bottom: 2px solid transparent;
    min-height: 48px;
    display: flex;
    align-items: center;
    transition: color 0.2s, border-color 0.2s;
  }

  .nav-links a:hover,
  .nav-links a.actief {
    color: var(--kleur-accent);
    border-bottom-color: var(--kleur-accent);
  }

  .hero-knoppen {
    flex-direction: row;
    max-width: 460px;
  }

  .hero-knoppen .btn { width: auto; }

  .intro { padding: 80px 20px; }
  .intro-inner {
    flex-direction: row;
    gap: 60px;
    align-items: center;
  }
  .intro-tekst  { flex: 1; }
  .intro-afbeelding { flex: 0 0 36%; }

  .usp { padding: 80px 20px; }
  .usp-inner { flex-direction: row; gap: 40px; }
  .usp-blok  { flex: 1; }

  .diensten-preview { padding: 80px 20px; }
  .diensten-grid { grid-template-columns: repeat(2, 1fr); }

  .projecten-preview { padding: 80px 20px; }
  .projecten-grid { grid-template-columns: repeat(2, 1fr); }

  .cta-balk { padding: 80px 20px; }

  .footer { padding: 80px 20px 0; }
  .footer-inner {
    flex-direction: row;
    gap: 60px;
  }
  .footer-kolom { flex: 1; }

  .pagina-header { padding: 80px 20px; }

  .diensten-sectie { padding: 80px 20px; }
  .diensten-sectie-inner { grid-template-columns: repeat(2, 1fr); }

  .projecten-sectie { padding: 40px 32px 60px; }
  .projecten-volledig-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .projecten-categorie { padding: 32px; }

  .contact-sectie { padding: 80px 20px; }
  .contact-inner { flex-direction: row; align-items: flex-start; }
  .contact-formulier { flex: 0 0 58%; }
  .contact-info { flex: 1; }
}

/* ===========================================
   DESKTOP — min-width: 1024px
   =========================================== */

@media (min-width: 1024px) {
  h1 { font-size: 2.5rem; }
  h2 { font-size: 2rem; }

  .diensten-grid { grid-template-columns: repeat(4, 1fr); }
  .projecten-grid { grid-template-columns: repeat(3, 1fr); }
  .projecten-volledig-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
}