/* ===========================================================
   Home & Window Lifestyle — zonweringzonneenergie.nl
   Design tokens
   =========================================================== */
:root{
  --charcoal:       #1C2321;
  --charcoal-soft:  #2A322E;
  --charcoal-line:  #3A423D;
  --paper:          #F4F5F0;
  --paper-dim:      #EAEBE2;
  --paper-line:     #DCDDD3;
  --sun:            #EFA324;
  --sun-deep:       #C2820F;
  --sun-tint:       #FCE9C6;
  --pine:           #2C6459;
  --pine-deep:      #1E4A41;
  --ink:            #1C2321;
  --ink-muted:      #5B6560;
  --ink-soft:       #86908A;
  --white:          #FFFFFF;

  --font-display: 'Space Grotesk', 'Arial Narrow', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  --radius: 4px;
  --container: 1180px;
}

*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}
:focus-visible{outline:3px solid var(--sun);outline-offset:2px;}

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

h1,h2,h3,h4{
  font-family: var(--font-display);
  font-weight:600;
  line-height:1.08;
  letter-spacing:-0.01em;
  color: var(--charcoal);
}
h1{font-size: clamp(2.4rem, 5vw, 4rem);}
h2{font-size: clamp(1.9rem, 3.4vw, 2.7rem);}
h3{font-size: clamp(1.25rem, 2vw, 1.5rem);}
p{color: var(--ink-muted);}
p.lead{font-size:1.15rem;color:var(--ink);}

.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pine);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom: 14px;
}
.eyebrow::before{
  content:"";
  width: 22px; height:2px;
  background: var(--sun);
  display:inline-block;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family: var(--font-display);
  font-weight:600;
  font-size: 0.98rem;
  padding: 14px 26px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor:pointer;
  transition: transform .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
}
.btn-primary{
  background: var(--sun);
  color: var(--charcoal);
}
.btn-primary:hover{background: var(--sun-deep); transform: translateY(-2px);}
.btn-outline{
  background: transparent;
  border-color: var(--charcoal-line);
  color: var(--paper);
}
.btn-outline:hover{border-color: var(--sun); color:var(--sun); transform: translateY(-2px);}
.btn-dark{
  background: var(--charcoal);
  color: var(--paper);
}
.btn-dark:hover{background: var(--pine-deep); transform: translateY(-2px);}
.btn-block{width:100%;justify-content:center;}

/* ---------- Header ---------- */
header.site-header{
  position: sticky; top:0; z-index: 100;
  background: rgba(28,35,33,0.96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--charcoal-line);
}
.header-bar{
  display:flex; align-items:center; justify-content:space-between;
  padding: 16px 24px;
  max-width: var(--container); margin:0 auto;
}
.logo{
  font-family: var(--font-display);
  font-weight:700;
  font-size: 1.25rem;
  color: var(--paper);
  display:flex; align-items:center; gap:10px;
  letter-spacing:-0.01em;
}
.logo .logo-mark{
  width:30px;height:30px;flex:none;
}
.logo small{
  display:block;
  font-family: var(--font-mono);
  font-weight:400;
  font-size:0.62rem;
  letter-spacing:0.08em;
  color: var(--sun);
  text-transform:uppercase;
}
nav.main-nav ul{display:flex; gap:20px; align-items:center; flex-wrap: nowrap;}
nav.main-nav a{
  color: var(--paper);
  font-size:0.9rem;
  font-weight:500;
  opacity:0.88;
  white-space: nowrap;
  transition:opacity .15s ease, color .15s ease;
}
nav.main-nav a:hover{opacity:1; color:var(--sun);}
.nav-cta{display:flex; align-items:center; gap:14px; flex:none;}
.nav-phone{
  font-family: var(--font-mono);
  color: var(--paper);
  font-size:0.82rem;
  opacity:0.85;
  white-space: nowrap;
}
.btn{white-space:nowrap;}
.menu-toggle{display:none; background:none;border:none; color:var(--paper); font-size:1.6rem; cursor:pointer; flex:none;}

@media (max-width: 1240px){
  nav.main-nav{
    position:fixed; inset: 68px 0 0 0; background:var(--charcoal);
    padding: 32px 24px; transform: translateX(100%); transition: transform .25s ease;
    overflow-y:auto;
  }
  nav.main-nav.open{transform: translateX(0);}
  nav.main-nav ul{flex-direction:column; align-items:flex-start; gap:22px; flex-wrap:wrap;}
  nav.main-nav a{font-size:1.1rem; white-space:normal;}
  .nav-phone{display:none;}
  .menu-toggle{display:block;}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background: var(--charcoal);
  color: var(--paper);
  overflow:hidden;
  padding: 90px 0 70px;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items:center;
}
.hero h1{color: var(--paper);}
.hero h1 em{
  font-style:normal;
  color: var(--sun);
}
.hero p.lead{color: var(--paper); opacity:0.82; max-width:46ch; margin: 20px 0 32px;}
.hero-ctas{display:flex; gap:16px; flex-wrap:wrap;}
.hero-trust{
  display:flex; gap:26px; margin-top:44px; flex-wrap:wrap;
  font-family: var(--font-mono); font-size:0.8rem; color: var(--paper); opacity:0.7;
}
.hero-trust strong{color:var(--sun); font-family:var(--font-display); font-size:1.3rem; display:block;}

.sun-arc-wrap{position:relative; height:340px;}
@media (max-width: 980px){
  .hero-grid{grid-template-columns:1fr;}
  .sun-arc-wrap{height:240px;}
}

/* ---------- Sections ---------- */
section{padding: 84px 0;}
section.alt{background: var(--paper-dim); border-top:1px solid var(--paper-line); border-bottom:1px solid var(--paper-line);}
section.dark{background: var(--charcoal); color: var(--paper);}
section.dark h2, section.dark h3{color:var(--paper);}
section.dark p{color: rgba(244,245,240,0.72);}
.section-head{max-width: 640px; margin-bottom: 48px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ---------- Cards / grids ---------- */
.grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:28px;}
.grid-2{display:grid; grid-template-columns:repeat(2,1fr); gap:32px;}
@media (max-width:900px){.grid-3{grid-template-columns:1fr;} .grid-2{grid-template-columns:1fr;}}

.card{
  background: var(--white);
  border:1px solid var(--paper-line);
  border-radius: var(--radius);
  overflow:hidden;
  transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover{transform: translateY(-4px); box-shadow: 0 16px 30px rgba(28,35,33,0.08);}
.card img{height:220px; object-fit:cover; width:100%;}
.card-body{padding: 24px;}
.card-body .eyebrow{margin-bottom:8px;}
.card-body p{font-size:0.95rem; margin:10px 0 16px;}
.card-link{
  font-family: var(--font-mono); font-size:0.82rem; color: var(--pine);
  display:inline-flex; align-items:center; gap:6px;
}

/* Process steps */
.process{counter-reset: step;}
.step{
  display:grid; grid-template-columns: 90px 1fr; gap:24px;
  padding: 26px 0; border-top:1px solid var(--paper-line);
}
.step:last-child{border-bottom:1px solid var(--paper-line);}
.step-num{
  counter-increment: step;
  font-family: var(--font-mono); color: var(--sun-deep); font-size:0.85rem;
}
.step-num::before{content: "0" counter(step);
  font-family: var(--font-display); font-size:2rem; color: var(--charcoal); display:block;
}

/* Product comparison table */
.compare{width:100%; border-collapse:collapse; margin-top: 12px;}
.compare th, .compare td{
  padding: 14px 18px; text-align:left; border-bottom:1px solid var(--paper-line); font-size:0.94rem;
}
.compare th{font-family:var(--font-display); background: var(--charcoal); color:var(--paper); font-weight:600;}
.compare tr:nth-child(even) td{background: var(--paper-dim);}
.compare td.yes{color: var(--pine); font-weight:600;}

/* FAQ */
.faq-item{border-top:1px solid var(--paper-line); padding: 22px 0;}
.faq-item:last-child{border-bottom:1px solid var(--paper-line);}
.faq-item summary{
  cursor:pointer; font-family:var(--font-display); font-weight:600; font-size:1.05rem;
  list-style:none; display:flex; justify-content:space-between; align-items:center; gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+"; font-size:1.6rem; color:var(--sun-deep); font-weight:400; flex:none;}
.faq-item[open] summary::after{content:"–";}
.faq-item p{margin-top:14px; max-width: 68ch;}

/* Reviews */
.review-strip{display:flex; gap:22px; overflow-x:auto; padding-bottom: 12px; scroll-snap-type:x mandatory;}
.review-card{
  min-width:300px; scroll-snap-align:start;
  background: var(--white); border:1px solid var(--paper-line); border-radius:var(--radius);
  padding:24px;
}
.review-stars{color:var(--sun-deep); font-family: var(--font-mono); letter-spacing:2px; margin-bottom:10px;}
.review-card p{font-size:0.93rem; color:var(--ink);}
.review-name{margin-top:14px; font-family:var(--font-display); font-weight:600; font-size:0.9rem; color:var(--charcoal);}

/* Stat band */
.stat-band{display:flex; flex-wrap:wrap; gap:40px; justify-content:space-between; border-top:1px solid var(--charcoal-line); padding-top:36px; margin-top:36px;}
.stat{font-family:var(--font-mono);}
.stat strong{display:block; font-family:var(--font-display); font-size:2.2rem; color:var(--sun);}
.stat span{font-size:0.8rem; opacity:0.7;}

/* ---------- Form ---------- */
.form-panel{
  background: var(--white); border:1px solid var(--paper-line); border-radius: var(--radius);
  padding: 36px; box-shadow: 0 20px 48px rgba(28,35,33,0.06);
}
.form-row{display:grid; grid-template-columns:1fr 1fr; gap:16px;}
@media (max-width:600px){.form-row{grid-template-columns:1fr;}}
.field{margin-bottom:18px;}
.field label{
  display:block; font-family:var(--font-mono); font-size:0.76rem; letter-spacing:0.06em;
  text-transform:uppercase; color: var(--ink-muted); margin-bottom:8px;
}
.field input, .field select, .field textarea{
  width:100%; padding: 13px 14px; border:1px solid var(--paper-line); border-radius:var(--radius);
  font-family: var(--font-body); font-size:0.96rem; background: var(--paper);
  transition: border-color .15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus{border-color: var(--sun-deep); outline:none;}
.field-check{display:flex; align-items:flex-start; gap:10px; font-size:0.85rem; color:var(--ink-muted);}
.field-check input{width:auto; margin-top:3px;}

/* ---------- Footer ---------- */
footer{background: var(--charcoal); color: var(--paper); padding: 60px 0 30px;}
.footer-grid{display:grid; grid-template-columns: 1.3fr 1fr 1fr 1fr 1fr; gap:32px;}
@media (max-width:1000px){.footer-grid{grid-template-columns:1fr 1fr 1fr;}}
@media (max-width:600px){.footer-grid{grid-template-columns:1fr 1fr;}}
footer h4{color:var(--paper); font-size:0.95rem; margin-bottom:16px;}
footer ul li{margin-bottom:10px;}
footer a{color: rgba(244,245,240,0.68); font-size:0.9rem; transition:color .15s ease;}
footer a:hover{color: var(--sun);}
.footer-bottom{
  border-top:1px solid var(--charcoal-line); margin-top:44px; padding-top:24px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
  font-family: var(--font-mono); font-size:0.76rem; color: rgba(244,245,240,0.5);
}

/* Sticky mobile CTA */
.mobile-cta{
  position:fixed; bottom:0; left:0; right:0; z-index:90;
  background: var(--sun); padding: 12px 20px; display:none;
  align-items:center; justify-content:center; gap:10px;
  font-family: var(--font-display); font-weight:600; color: var(--charcoal);
}
@media (max-width: 700px){.mobile-cta{display:flex;} body{padding-bottom:56px;}}

/* Breadcrumb */
.crumb{font-family:var(--font-mono); font-size:0.78rem; color: var(--ink-soft); padding: 18px 0 0;}
.crumb a{color:var(--pine);}

/* Badge row */
.badge-row{display:flex; gap:28px; flex-wrap:wrap; align-items:center; opacity:0.85;}
.badge{font-family:var(--font-mono); font-size:0.78rem; border:1px solid var(--charcoal-line); padding:8px 14px; border-radius:20px; color:var(--paper);}

/* Utility */
.mt-0{margin-top:0;}
.center{text-align:center;}
.text-sun{color:var(--sun-deep);}

/* ---------- Signature: sun-arc hero graphic ---------- */
.sun-arc{
  position:relative;
  width:100%; height:100%;
  border:1px solid var(--charcoal-line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #232B28 0%, #1C2321 62%, #171C1A 100%);
  overflow:hidden;
}
.sun-arc__sky{position:absolute; inset:0;}
.sun-arc__path{
  position:absolute; left:8%; right:8%; top:18%; height:60%;
}
.sun-arc__orb{
  position:absolute;
  width:26px; height:26px; border-radius:50%;
  background: radial-gradient(circle at 35% 30%, #FFE7B0, var(--sun) 60%, var(--sun-deep) 100%);
  box-shadow: 0 0 26px 6px rgba(239,163,36,0.55);
  offset-path: path('M10,150 C120,10 300,10 410,150');
  offset-rotate: 0deg;
  animation: sun-travel 8s ease-in-out infinite alternate;
}
@keyframes sun-travel{
  0%{offset-distance:0%;}
  100%{offset-distance:100%;}
}
.sun-arc__arcline{
  position:absolute; left:0; top:0; width:100%; height:100%;
}
.sun-arc__house{
  position:absolute; left:50%; bottom:14%; transform:translateX(-50%);
  width:64%;
}
.sun-arc__facade{fill:#2A322E; stroke:var(--charcoal-line); stroke-width:1;}
.sun-arc__window{fill:#161C1A;}
.sun-arc__screen{
  transform-origin: top;
  animation: screen-react 8s ease-in-out infinite alternate;
}
@keyframes screen-react{
  0%{transform:scaleY(0.08);}
  45%{transform:scaleY(0.08);}
  55%{transform:scaleY(0.95);}
  100%{transform:scaleY(0.95);}
}
.sun-arc__caption{
  position:absolute; left:16px; bottom:14px;
  font-family: var(--font-mono); font-size:0.7rem; letter-spacing:0.06em;
  color: rgba(244,245,240,0.55); text-transform:uppercase;
}
@media (prefers-reduced-motion: reduce){
  .sun-arc__orb, .sun-arc__screen{animation: none;}
}