/* ==========================================================================
   Driessen Bouw — editorial build, tuned around the brand's charcoal + blue.
   ========================================================================== */

:root{
  /* palette */
  --charcoal:      #1c1f24;
  --charcoal-soft:  #2a2e35;
  --blue:          #13589a;
  --blue-deep:     #0c3d6d;
  --clay:          #b5522f;
  --stone:         #f3efe6;
  --paper:         #fbfaf6;
  --ink:           #1c1f24;
  --line:          rgba(28,31,36,0.14);
  --line-on-dark:  rgba(243,239,230,0.18);

  /* type */
  --head: 'Archivo', 'Helvetica Neue', Arial, sans-serif;
  --sans: 'Libre Franklin', 'Helvetica Neue', Arial, sans-serif;

  /* rhythm */
  --gutter: clamp(1.25rem, 4vw, 3.5rem);
  --max: 1320px;
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; }

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

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

h1,h2,h3{
  font-family:var(--head);
  font-weight:600;
  margin:0;
  letter-spacing:-0.01em;
}

p{ margin:0; }

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

ul,ol{ list-style:none; margin:0; padding:0; }

.skip-link{
  position:absolute; left:-999px; top:0;
  background:var(--ink); color:var(--paper); padding:0.8em 1.2em; z-index:999;
}
.skip-link:focus{ left:1rem; top:1rem; }

/* ---------- grain overlay ---------- */
.grain{
  position:fixed; inset:0; pointer-events:none; z-index:2000;
  opacity:0.05; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* ---------- reveal-on-scroll ---------- */
.reveal{
  opacity:0;
  transform:translateY(22px);
  transition:opacity 0.7s cubic-bezier(.2,.7,.2,1), transform 0.7s cubic-bezier(.2,.7,.2,1);
  transition-delay:calc(var(--d, 0) * 70ms);
}
.reveal.is-visible{ opacity:1; transform:translateY(0); }

/* ==========================================================================
   Header
   ========================================================================== */

.site-header{
  position:sticky; top:0; z-index:500;
  background:rgba(251,250,246,0.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s ease;
}
.site-header.scrolled{ box-shadow:0 8px 24px rgba(28,31,36,0.06); }

.header-inner{
  max-width:var(--max); margin:0 auto;
  padding:0.85rem var(--gutter);
  display:flex; align-items:center; gap:1.5rem;
}

.brand{ display:flex; align-items:center; gap:0.8rem; margin-right:auto; }
.brand-badge{
  width:64px; display:flex; align-items:center;
  border:1px solid var(--line); border-radius:6px;
  padding:4px 6px; background:#fff;
}
.brand-badge img{ width:100%; height:auto; }

.brand-word{ display:flex; flex-direction:column; line-height:1.1; }
.brand-name{ font-family:var(--head); font-weight:700; font-size:1.05rem; }
.brand-place{ font-size:0.68rem; letter-spacing:0.08em; text-transform:uppercase; color:var(--blue); }

.main-nav{ display:flex; gap:2rem; }
.main-nav a{
  font-size:0.82rem; letter-spacing:0.02em;
  display:inline-flex; align-items:baseline; gap:0.35em;
  position:relative; padding-bottom:2px;
}
.main-nav a span{ font-size:0.65rem; color:var(--blue); font-family:var(--sans); }
.main-nav a::after{
  content:""; position:absolute; left:0; right:100%; bottom:0; height:1px;
  background:var(--ink); transition:right .3s cubic-bezier(.2,.7,.2,1);
}
.main-nav a:hover::after{ right:0; }

.btn{
  font-family:var(--sans); font-size:0.82rem; font-weight:500;
  letter-spacing:0.01em; cursor:pointer; border:none;
  display:inline-flex; align-items:center; justify-content:center;
  padding:0.85em 1.5em; position:relative; overflow:hidden;
  border-radius:2px;
}
.btn span{ position:relative; z-index:2; }

.btn-line{
  border:1px solid var(--ink); background:transparent; color:var(--ink);
}
.btn-line::before{
  content:""; position:absolute; inset:0; background:var(--ink);
  transform:translateY(101%); transition:transform .3s cubic-bezier(.2,.7,.2,1); z-index:1;
}
.btn-line:hover{ color:var(--paper); }
.btn-line:hover::before{ transform:translateY(0); }

.btn-solid{
  background:var(--blue); color:#fff;
}
.btn-solid::before{
  content:""; position:absolute; inset:0; background:var(--blue-deep);
  transform:translateX(-101%); transition:transform .3s cubic-bezier(.2,.7,.2,1); z-index:1;
}
.btn-solid:hover::before{ transform:translateX(0); }

.btn-ghost{
  background:transparent; color:var(--ink); padding-left:0.2em;
}
.btn-ghost span{ border-bottom:1px solid var(--line); padding-bottom:2px; transition:border-color .25s ease; }
.btn-ghost:hover span{ border-color:var(--ink); }

.btn-full{ width:100%; }

.header-cta{ flex-shrink:0; }

.nav-toggle{
  display:none; width:34px; height:34px; border:1px solid var(--line);
  background:transparent; border-radius:4px; flex-direction:column;
  align-items:center; justify-content:center; gap:5px; cursor:pointer;
}
.nav-toggle span{ width:16px; height:1px; background:var(--ink); }

.mobile-nav{
  display:none; flex-direction:column; gap:0;
  border-top:1px solid var(--line);
}
.mobile-nav a{
  padding:0.9rem var(--gutter); border-bottom:1px solid var(--line);
  font-size:0.95rem;
}
.mobile-nav .btn{ margin:0.9rem var(--gutter); width:calc(100% - 2*var(--gutter)); }

/* ==========================================================================
   Hero
   ========================================================================== */

.hero{
  position:relative;
  background:var(--charcoal);
  color:var(--stone);
  padding:clamp(4rem,10vw,7.5rem) var(--gutter) clamp(3rem,7vw,5rem);
  overflow:hidden;
  display:grid;
  grid-template-columns: minmax(0,780px) 1fr;
  column-gap:2rem;
}

.hero-photo{
  position:absolute; inset:0; width:100%; height:100%;
  object-fit:cover;
  opacity:0.55;
  filter:saturate(0.85) contrast(1.05);
}

.hero::before{
  content:"";
  position:absolute; inset:0; z-index:1;
  background:
    linear-gradient(0deg, var(--charcoal) 0%, rgba(28,31,36,0.55) 42%, rgba(28,31,36,0.72) 100%),
    linear-gradient(100deg, var(--charcoal) 5%, rgba(28,31,36,0.35) 45%, rgba(28,31,36,0.75) 100%);
}

.hero-blueprint{
  position:absolute; inset:0; width:100%; height:100%;
  z-index:1;
  opacity:0.9;
}

.eyebrow{
  grid-column:1/2;
  font-size:0.78rem; letter-spacing:0.18em; text-transform:uppercase;
  color:var(--stone); opacity:0.7; margin-bottom:1.4rem;
  position:relative; z-index:2;
}

.hero-title{
  grid-column:1/-1;
  position:relative; z-index:2;
  font-size:clamp(2.8rem, 8vw, 6.6rem);
  font-weight:700;
  line-height:0.98;
  margin-bottom:clamp(2.5rem,6vw,4rem);
  text-align:center;
}
.hero-title span{ display:block; }
.hero-title .accent-word{
  display:inline-block;
  color:var(--blue);
  position:relative;
}
.hero-title .accent-word::after{
  content:""; position:absolute; left:0; bottom:0.1em; width:100%; height:2px;
  background:var(--blue);
  transform-origin:left;
  transform:scaleX(0);
  animation:draw-line 1s 1.1s cubic-bezier(.2,.7,.2,1) both;
}
@keyframes draw-line{ from{ transform:scaleX(0);} to{ transform:scaleX(1);} }

.hero-foot{
  grid-column:1/2;
  position:relative; z-index:2;
  display:flex; flex-direction:column; gap:2rem;
  border-top:1px solid var(--line-on-dark);
  padding-top:1.8rem;
}

.hero-lede{
  font-size:1.05rem; max-width:38ch; color:var(--stone); opacity:0.88;
}

.hero-actions{ display:flex; flex-wrap:wrap; gap:1rem; }
.hero .btn-ghost{ color:var(--stone); }
.hero .btn-ghost span{ border-color:var(--line-on-dark); }
.hero .btn-ghost:hover span{ border-color:var(--stone); }

.hero-stats{
  grid-column:2/3; grid-row:3/5;
  position:relative; z-index:2;
  display:flex; flex-direction:column; gap:0.9rem;
  align-self:end; justify-self:end;
  text-align:right; font-size:0.85rem; letter-spacing:0.02em;
  color:var(--stone); opacity:0.85;
}
.hero-stats li{ position:relative; padding-right:1.4rem; }
.hero-stats li::after{ content:"—"; position:absolute; right:0; color:var(--blue); }

.scroll-cue{
  position:absolute; left:var(--gutter); bottom:1.6rem; z-index:2;
  display:flex; align-items:center; gap:0.6rem;
  font-size:0.7rem; letter-spacing:0.14em; text-transform:uppercase; color:var(--stone);
  opacity:0.55;
}
.scroll-cue span{
  width:1px; height:26px; background:var(--stone);
  position:relative; overflow:hidden;
}
.scroll-cue span::after{
  content:""; position:absolute; top:-100%; left:0; width:100%; height:100%;
  background:var(--blue);
  animation:cue 1.8s ease-in-out infinite;
}
@keyframes cue{
  0%{ top:-100%; } 50%{ top:0; } 100%{ top:100%; }
}

/* ==========================================================================
   Section scaffolding
   ========================================================================== */

section{ padding:clamp(4rem,9vw,7rem) var(--gutter); }

.section-head{
  display:grid;
  grid-template-columns: 100px 1fr;
  gap:1.5rem 2rem;
  max-width:var(--max); margin:0 auto clamp(3rem,7vw,5rem);
  align-items:end;
}
.section-index{
  font-family:var(--head); font-weight:600; font-size:1rem; color:var(--blue);
  border-top:1px solid var(--line); padding-top:0.6rem;
}
.section-title{
  font-size:clamp(2.2rem,5.5vw,3.8rem);
  line-height:0.98;
  grid-row:1/3;
  grid-column:2/3;
}
.section-note{
  grid-column:2/3;
  max-width:44ch; color:var(--charcoal-soft); opacity:0.75; font-size:0.98rem;
  padding-top:0.6rem; border-top:1px solid var(--line);
}

/* ==========================================================================
   Diensten
   ========================================================================== */

.diensten{ background:var(--paper); }

.service-list{ max-width:var(--max); margin:0 auto; }

.service-row{
  display:grid;
  grid-template-columns: 90px 64px 1fr minmax(0,42ch);
  gap:1.5rem 2rem;
  align-items:start;
  padding:2.1rem 0;
  border-top:1px solid var(--line);
}
.service-row:last-child{ border-bottom:1px solid var(--line); }
.service-row:nth-child(even){ padding-left:clamp(0px,4vw,3rem); }

.service-num{
  font-family:var(--head); font-weight:700; font-size:1.4rem; color:var(--blue);
  opacity:0.8;
}
.service-icon{
  width:44px; height:44px; color:var(--ink);
  transition:transform .35s cubic-bezier(.2,.7,.2,1), color .35s ease;
}
.service-row:hover .service-icon{ transform:translateY(-3px) rotate(-4deg); color:var(--blue); }
.service-icon svg{ width:100%; height:100%; }

.service-name{ font-size:clamp(1.4rem,2.6vw,1.9rem); align-self:center; }
.service-desc{ font-size:0.95rem; color:var(--charcoal-soft); opacity:0.8; align-self:center; }

/* ==========================================================================
   Werkwijze
   ========================================================================== */

.werkwijze{ background:var(--stone); }

.steps{
  max-width:var(--max); margin:0 auto;
  display:grid; grid-template-columns:repeat(4,1fr);
  gap:0; border-top:1px solid var(--line); border-left:1px solid var(--line);
}
.step{
  padding:2.2rem 1.8rem 2.6rem;
  border-right:1px solid var(--line); border-bottom:1px solid var(--line);
  position:relative;
}
.step:nth-child(2){ transform:translateY(1.4rem); }
.step:nth-child(4){ transform:translateY(-0.6rem); }
.step-num{
  font-family:var(--head); font-weight:700; font-size:2.6rem; color:var(--blue);
  display:block; margin-bottom:1rem; line-height:1;
}
.step h3{ font-size:1.25rem; margin-bottom:0.6rem; }
.step p{ font-size:0.9rem; color:var(--charcoal-soft); opacity:0.8; }

/* ==========================================================================
   Ons werk
   ========================================================================== */

.work{ background:var(--stone); padding-top:0; padding-bottom:clamp(4rem,9vw,7rem); }

.work-grid{
  max-width:var(--max); margin:0 auto;
  display:grid; grid-template-columns:1.15fr 0.85fr;
  gap:clamp(1.5rem,4vw,2.5rem);
}

.work-card{
  margin:0; position:relative; overflow:hidden;
  border:1px solid var(--line);
  aspect-ratio:4/5;
}
.work-card--b{ margin-top:clamp(0px,6vw,3.5rem); }

.work-card img{
  width:100%; height:100%; object-fit:cover; display:block;
  filter:saturate(0.92) contrast(1.04);
  transition:transform .6s cubic-bezier(.2,.7,.2,1);
}
.work-card:hover img{ transform:scale(1.035); }

.work-card::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(0deg, rgba(28,31,36,0.8) 0%, rgba(28,31,36,0) 40%);
  pointer-events:none;
}

.work-card figcaption{
  position:absolute; left:1.4rem; bottom:1.3rem; z-index:2;
  color:var(--stone); font-size:0.85rem; letter-spacing:0.02em;
  display:flex; align-items:center; gap:0.6em;
}
.work-num{ color:var(--blue); }

/* ==========================================================================
   Over ons
   ========================================================================== */

.over-ons{ background:var(--paper); }

.over-grid{
  max-width:var(--max); margin:0 auto;
  display:grid; grid-template-columns: 0.85fr 1.15fr;
  gap:clamp(2rem,6vw,5rem);
  align-items:start;
}

.over-media{
  border:1px solid var(--line);
  align-self:stretch;
  position:relative;
  overflow:hidden;
  min-height:340px;
  background:var(--charcoal);
}
.over-media img{
  width:100%; height:100%; display:block; object-fit:cover;
  filter:saturate(0.92) contrast(1.04);
}
.over-media-tag{
  position:absolute; left:1.6rem; bottom:1.5rem; z-index:2;
  font-family:var(--sans); font-size:0.72rem; letter-spacing:0.2em; text-transform:uppercase;
  color:var(--stone);
  padding-bottom:0.9rem;
  border-bottom:1px solid var(--blue);
}
.over-media::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(0deg, rgba(28,31,36,0.75) 0%, rgba(28,31,36,0) 45%);
  pointer-events:none;
}

.over-copy .section-index{ border:none; padding:0; margin-bottom:1rem; display:block; }
.over-copy .section-title{ margin-bottom:1.8rem; }

.lede{ font-size:1.15rem; margin-bottom:1.3rem; max-width:46ch; }
.over-copy > p:not(.lede){ font-size:0.98rem; color:var(--charcoal-soft); opacity:0.8; max-width:46ch; margin-bottom:2.2rem; }

.usp-list{ display:flex; flex-direction:column; gap:0.85rem; }
.usp-list li{ font-size:0.95rem; display:flex; gap:0.7em; }
.usp-list span{ color:var(--blue); }

/* ==========================================================================
   Contact
   ========================================================================== */

.contact{ background:var(--charcoal); color:var(--stone); }

.contact-grid{
  max-width:var(--max); margin:0 auto;
  display:grid; grid-template-columns:0.95fr 1.05fr; gap:clamp(2.5rem,6vw,5rem);
}

.contact .section-index{ border-color:var(--line-on-dark); color:var(--blue); display:block; padding:0; border:none; margin-bottom:1rem; }
.contact .section-title{ margin-bottom:1.6rem; }
.contact .lede{ opacity:0.85; margin-bottom:2.4rem; }

.contact-details{ display:flex; flex-direction:column; gap:1.2rem; border-top:1px solid var(--line-on-dark); padding-top:1.6rem; }
.contact-details .label{ display:block; font-size:0.7rem; letter-spacing:0.12em; text-transform:uppercase; color:var(--blue); margin-bottom:0.25rem; }
.contact-details a,.contact-details span{ font-size:1.05rem; }

.contact-form{ display:flex; flex-direction:column; gap:1.3rem; }
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:1.3rem; }
.field{ display:flex; flex-direction:column; gap:0.5rem; }
.field label{ font-size:0.75rem; letter-spacing:0.06em; text-transform:uppercase; opacity:0.7; }

.field input, .field select, .field textarea{
  background:transparent; border:none; border-bottom:1px solid var(--line-on-dark);
  color:var(--stone); font-family:var(--sans); font-size:0.98rem; padding:0.6em 0.1em;
  transition:border-color .25s ease;
}
.field select option{ color:#000; }
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none; border-color:var(--blue);
}
.field textarea{ resize:vertical; }

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer{
  background:var(--stone); border-top:1px solid var(--line);
  padding:clamp(3rem,7vw,4.5rem) var(--gutter) 2rem;
}
.footer-top{ max-width:var(--max); margin:0 auto 2.5rem; display:flex; align-items:center; gap:1.4rem; flex-wrap:wrap; }
.footer-badge{ width:70px; }
.footer-tag{ font-size:0.92rem; color:var(--charcoal-soft); opacity:0.8; max-width:36ch; }

.footer-grid{
  max-width:var(--max); margin:0 auto; padding-top:1.8rem; border-top:1px solid var(--line);
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:1.5rem;
}
.footer-grid nav{ display:flex; gap:1.6rem; flex-wrap:wrap; }
.footer-grid nav a{ font-size:0.85rem; }
.footer-meta{ display:flex; gap:1.6rem; flex-wrap:wrap; font-size:0.85rem; opacity:0.7; }

.footer-bottom{
  max-width:var(--max); margin:2.2rem auto 0; padding-top:1.4rem; border-top:1px solid var(--line);
  display:flex; justify-content:space-between; font-size:0.78rem; opacity:0.65; flex-wrap:wrap; gap:0.6rem;
}

.footer-bottom a{ color:inherit; text-decoration:underline; text-underline-offset:2px; }
.footer-bottom a:hover{ opacity:0.8; }

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width:980px){
  .main-nav, .header-cta{ display:none; }
  .nav-toggle{ display:flex; }
  .mobile-nav.open{ display:flex; }

  .hero{ grid-template-columns:1fr; }
  .eyebrow, .hero-foot{ grid-column:1/-1; }
  .hero-stats{ grid-column:1/-1; grid-row:auto; align-items:flex-start; text-align:left; margin-top:2rem; }
  .hero-stats li{ padding-right:0; padding-left:1.2rem; }
  .hero-stats li::after{ right:auto; left:0; }

  .section-head{ grid-template-columns:1fr; }
  .section-index{ grid-row:1; }
  .section-title{ grid-row:2; grid-column:1; }
  .section-note{ grid-column:1; }

  .service-row{ grid-template-columns:50px 44px 1fr; }
  .service-desc{ grid-column:2/4; }
  .service-row:nth-child(even){ padding-left:0; }

  .steps{ grid-template-columns:1fr 1fr; }
  .step:nth-child(n){ transform:none; }

  .over-grid, .contact-grid{ grid-template-columns:1fr; }
  .over-media{ order:2; height:320px; }
  .field-row{ grid-template-columns:1fr; }
}

@media (max-width:560px){
  .steps{ grid-template-columns:1fr; }
  .header-inner{ padding:0.7rem 1.1rem; }
  section{ padding:3.2rem 1.1rem; }
}

@media (prefers-reduced-motion:reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
  .hero-title .accent-word::after{ animation:none; transform:scaleX(1); }
  .scroll-cue span::after{ animation:none; }
}