/* ============================================================
   Zonkampioen — design system
   Palet: diepgroen + zonnig geel op warm wit. Snel, geen fonts
   van derden (Core Web Vitals), alles system-stack.
   ============================================================ */
:root {
  --groen: #0e4d3a;
  --groen-donker: #082f24;
  --groen-licht: #e8f3ee;
  --zon: #ffc529;
  --zon-donker: #e6a800;
  --inkt: #16211c;
  --grijs: #5b6862;
  --lijn: #e3e0d8;
  --wit: #ffffff;
  --creme: #faf8f3;
  --radius: 16px;
  --schaduw: 0 8px 30px rgba(14, 77, 58, 0.10);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--inkt);
  background: var(--creme);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--groen); }

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 248, 243, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--lijn);
}
.nav-bar { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 800; font-size: 1.25rem; color: var(--groen-donker); letter-spacing: -0.02em; }
.logo-mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(135deg, var(--zon) 0%, var(--zon-donker) 100%);
  display: grid; place-items: center; font-size: 1.05rem;
}
.nav-links { display: flex; align-items: center; gap: 26px; list-style: none; }
.nav-links a { text-decoration: none; color: var(--inkt); font-weight: 600; font-size: 0.95rem; }
.nav-links a:hover { color: var(--groen); }
.nav-toggle { display: none; background: none; border: none; font-size: 1.6rem; cursor: pointer; color: var(--groen-donker); }

/* ---------- Knoppen ---------- */
.btn {
  display: inline-block; padding: 13px 26px; border-radius: 999px;
  font-weight: 700; font-size: 0.98rem; text-decoration: none; cursor: pointer;
  border: 2px solid transparent; transition: transform .12s ease, box-shadow .12s ease;
  font-family: var(--font);
}
.btn:hover { transform: translateY(-1px); }
.btn-cta { background: var(--zon); color: var(--groen-donker); box-shadow: 0 4px 14px rgba(230, 168, 0, .35); }
.btn-cta:hover { background: #ffd04f; }
.btn-groen { background: var(--groen); color: var(--wit); }
.btn-groen:hover { background: var(--groen-donker); }
.btn-ghost { border-color: var(--groen); color: var(--groen); background: transparent; }

/* ---------- Hero ---------- */
.hero {
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(255, 197, 41, 0.25), transparent 60%),
    linear-gradient(180deg, var(--groen-donker) 0%, var(--groen) 100%);
  color: var(--wit); padding: 72px 0 88px;
}
.hero .kicker { color: var(--zon); }
.hero h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); line-height: 1.12; letter-spacing: -0.03em; margin-bottom: 18px; max-width: 15em; }
.hero p.lead { font-size: 1.15rem; color: #d7e8e0; max-width: 34em; margin-bottom: 30px; }
.hero-acties { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 34px; }
.trust-strip { display: flex; gap: 26px; flex-wrap: wrap; font-size: 0.92rem; color: #cfe2da; }
.trust-strip span::before { content: "✓ "; color: var(--zon); font-weight: 800; }

.kicker {
  display: inline-block; font-size: 0.8rem; font-weight: 800; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--groen); margin-bottom: 12px;
}

/* ---------- Secties ---------- */
.sectie { padding: 76px 0; }
.sectie-alt { background: var(--wit); border-top: 1px solid var(--lijn); border-bottom: 1px solid var(--lijn); }
.sectie h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); letter-spacing: -0.02em; line-height: 1.2; margin-bottom: 14px; }
.sectie .intro { color: var(--grijs); max-width: 42em; margin-bottom: 38px; font-size: 1.05rem; }

.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--wit); border: 1px solid var(--lijn); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--schaduw);
}
.card h3 { font-size: 1.12rem; margin-bottom: 8px; letter-spacing: -0.01em; }
.card p { color: var(--grijs); font-size: 0.95rem; }
.card .emoji { font-size: 1.8rem; margin-bottom: 12px; }

/* ---------- Calculator & keuzehulp ---------- */
.tool-paneel {
  background: var(--wit); border-radius: 20px; box-shadow: var(--schaduw);
  border: 1px solid var(--lijn); padding: 34px; max-width: 860px; margin: 0 auto;
}
.tool-paneel h3 { font-size: 1.3rem; margin-bottom: 20px; }
.veld { margin-bottom: 18px; }
.veld label { display: block; font-weight: 700; font-size: 0.92rem; margin-bottom: 7px; }
.veld input, .veld select, .veld textarea {
  width: 100%; padding: 12px 14px; border: 1.5px solid var(--lijn); border-radius: 10px;
  font-size: 1rem; font-family: var(--font); background: var(--creme); color: var(--inkt);
}
.veld input:focus, .veld select:focus, .veld textarea:focus { outline: 2px solid var(--zon); border-color: var(--zon-donker); }
.veld-rij { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.hulptekst { font-size: 0.82rem; color: var(--grijs); margin-top: 5px; }

.resultaat {
  margin-top: 24px; background: var(--groen-licht); border: 1.5px solid var(--groen);
  border-radius: 14px; padding: 24px; display: none;
}
.resultaat.zichtbaar { display: block; }
.resultaat-cijfers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 14px 0 18px; }
.cijfer { background: var(--wit); border-radius: 12px; padding: 16px; text-align: center; }
.cijfer .waarde { font-size: 1.5rem; font-weight: 800; color: var(--groen); }
.cijfer .label { font-size: 0.8rem; color: var(--grijs); }
.disclaimer { font-size: 0.78rem; color: var(--grijs); margin-top: 12px; }

/* radio-kaarten voor keuzehulp / offerte */
.keuze-rij { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 18px; }
.keuze-kaart { position: relative; }
.keuze-kaart input { position: absolute; opacity: 0; }
.keuze-kaart span {
  display: block; padding: 14px; text-align: center; border: 2px solid var(--lijn);
  border-radius: 12px; font-weight: 600; font-size: 0.92rem; cursor: pointer; background: var(--wit);
}
.keuze-kaart input:checked + span { border-color: var(--groen); background: var(--groen-licht); color: var(--groen-donker); }

/* ---------- Tabel ---------- */
.tabel-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--lijn); box-shadow: var(--schaduw); background: var(--wit); }
table.vergelijker { width: 100%; border-collapse: collapse; min-width: 720px; font-size: 0.93rem; }
.vergelijker th, .vergelijker td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--lijn); }
.vergelijker thead th { background: var(--groen); color: var(--wit); font-size: 0.85rem; letter-spacing: 0.04em; text-transform: uppercase; }
.vergelijker tbody tr:hover { background: var(--groen-licht); }
.vergelijker .merk { font-weight: 800; color: var(--groen-donker); }
.tag { display: inline-block; background: var(--zon); color: var(--groen-donker); font-size: 0.72rem; font-weight: 800; padding: 3px 9px; border-radius: 999px; }

/* ---------- Stappen ---------- */
.stappen { counter-reset: stap; }
.stap { position: relative; padding-left: 0; }
.stap .nummer {
  width: 44px; height: 44px; border-radius: 50%; background: var(--zon);
  color: var(--groen-donker); font-weight: 800; font-size: 1.15rem;
  display: grid; place-items: center; margin-bottom: 14px;
}

/* ---------- Reviews ---------- */
.review { border-left: 4px solid var(--zon); }
.sterren { color: var(--zon-donker); letter-spacing: 2px; margin-bottom: 8px; }
.review .naam { font-weight: 700; font-size: 0.88rem; margin-top: 12px; color: var(--inkt); }

/* ---------- FAQ ---------- */
.faq-item { background: var(--wit); border: 1px solid var(--lijn); border-radius: 12px; margin-bottom: 12px; overflow: hidden; }
.faq-item summary {
  padding: 18px 22px; font-weight: 700; cursor: pointer; list-style: none;
  display: flex; justify-content: space-between; align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 1.4rem; color: var(--groen); font-weight: 400; }
.faq-item[open] summary::after { content: "–"; }
.faq-item .antwoord { padding: 0 22px 20px; color: var(--grijs); font-size: 0.96rem; }

/* ---------- Artikelen / kennisbank ---------- */
.artikel { max-width: 720px; margin: 0 auto; }
.artikel h1 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); letter-spacing: -0.02em; line-height: 1.15; margin-bottom: 14px; }
.artikel .meta { color: var(--grijs); font-size: 0.88rem; margin-bottom: 30px; }
.artikel h2 { font-size: 1.4rem; margin: 38px 0 12px; }
.artikel h3 { font-size: 1.12rem; margin: 26px 0 8px; }
.artikel p, .artikel li { color: #33403a; margin-bottom: 14px; font-size: 1.02rem; }
.artikel ul, .artikel ol { padding-left: 24px; margin-bottom: 16px; }
.artikel .cta-blok {
  background: var(--groen-licht); border: 1.5px solid var(--groen); border-radius: 14px;
  padding: 24px; margin: 34px 0;
}
.breadcrumb { font-size: 0.85rem; color: var(--grijs); margin-bottom: 22px; }
.breadcrumb a { color: var(--grijs); }

.artikel-kaart { text-decoration: none; color: inherit; display: block; transition: transform .12s ease; }
.artikel-kaart:hover { transform: translateY(-3px); }
.artikel-kaart .label { font-size: 0.75rem; font-weight: 800; color: var(--groen); text-transform: uppercase; letter-spacing: 0.08em; }

/* ---------- CTA-band ---------- */
.cta-band { background: linear-gradient(135deg, var(--groen-donker), var(--groen)); color: var(--wit); text-align: center; }
.cta-band h2 { color: var(--wit); }
.cta-band p { color: #cfe2da; max-width: 36em; margin: 0 auto 28px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--groen-donker); color: #a9c4ba; padding: 56px 0 32px; font-size: 0.9rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 34px; margin-bottom: 38px; }
.site-footer h4 { color: var(--wit); font-size: 0.95rem; margin-bottom: 14px; }
.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: 9px; }
.site-footer a { color: #a9c4ba; text-decoration: none; }
.site-footer a:hover { color: var(--zon); }
.footer-onder { border-top: 1px solid rgba(255,255,255,0.12); padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 0.8rem; }

/* ---------- Offerte-stappen ---------- */
.form-stap { display: none; }
.form-stap.actief { display: block; }
.voortgang { display: flex; gap: 8px; margin-bottom: 28px; }
.voortgang .bol { flex: 1; height: 6px; border-radius: 3px; background: var(--lijn); }
.voortgang .bol.klaar { background: var(--zon); }
.form-nav { display: flex; justify-content: space-between; margin-top: 26px; }
.succes { text-align: center; padding: 30px 0; }
.succes .emoji { font-size: 3rem; margin-bottom: 14px; }

/* ---------- Responsief ---------- */
@media (max-width: 860px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .veld-rij { grid-template-columns: 1fr; }
  .resultaat-cijfers { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-links {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    background: var(--wit); flex-direction: column; padding: 20px 24px;
    border-bottom: 1px solid var(--lijn); gap: 16px;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
}

/* ============================================================
   v2 — animaties, hero-illustratie, ticker, tellers,
   pakketsamensteller
   ============================================================ */
@keyframes zk-draai { to { transform: rotate(360deg); } }
@keyframes zk-stroom { to { stroke-dashoffset: -64; } }
@keyframes zk-zweef { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes zk-drijf { from { transform: translateX(0); } to { transform: translateX(46px); } }
@keyframes zk-puls { 0%, 100% { opacity: 0.45; } 50% { opacity: 1; } }
@keyframes zk-ticker { to { transform: translateX(-50%); } }

/* Hero met illustratie */
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 44px; align-items: center; }
.hero-visual svg { width: 100%; height: auto; animation: zk-zweef 7s ease-in-out infinite; }
.zon-stralen { transform-box: fill-box; transform-origin: center; animation: zk-draai 60s linear infinite; }
.wolk { animation: zk-drijf 9s ease-in-out infinite alternate; }
.batt-cel { animation: zk-puls 2.2s ease-in-out infinite; }
.raam { animation: zk-puls 3.5s ease-in-out infinite; }
.stroomlijn {
  fill: none; stroke-width: 3.5; stroke-linecap: round;
  stroke-dasharray: 7 9; animation: zk-stroom 1.4s linear infinite;
}

/* Scroll-reveal */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in-view { opacity: 1; transform: none; }

/* Merken-ticker */
.ticker-wrap { overflow: hidden; padding: 18px 0; background: var(--wit); border-top: 1px solid var(--lijn); border-bottom: 1px solid var(--lijn); }
.ticker { display: flex; gap: 56px; width: max-content; animation: zk-ticker 28s linear infinite; }
.ticker span { white-space: nowrap; font-weight: 800; letter-spacing: 0.16em; font-size: 0.82rem; color: var(--grijs); text-transform: uppercase; opacity: 0.75; }

/* Tellers */
.stats { text-align: center; }
.stat .waarde { font-size: clamp(2rem, 4vw, 2.7rem); font-weight: 800; color: var(--groen); letter-spacing: -0.02em; }
.stat .label { color: var(--grijs); font-size: 0.9rem; }

/* Kaart-hover */
.card { transition: transform 0.18s ease, box-shadow 0.18s ease; }
.card:hover { transform: translateY(-4px); box-shadow: 0 14px 40px rgba(14, 77, 58, 0.14); }

/* Promo-band samensteller */
.promo-band {
  background: linear-gradient(120deg, var(--groen-donker), var(--groen));
  border-radius: 24px; padding: 44px; color: var(--wit);
  display: grid; grid-template-columns: 1.3fr auto; align-items: center; gap: 26px;
  box-shadow: var(--schaduw);
}
.promo-band h2 { color: var(--wit); }
.promo-band p { color: #cfe2da; }

/* Pakketsamensteller */
.sm-layout { display: grid; grid-template-columns: 1.35fr 1fr; gap: 26px; align-items: start; }
.sm-blok { background: var(--wit); border: 1px solid var(--lijn); border-radius: var(--radius); padding: 26px; box-shadow: var(--schaduw); margin-bottom: 22px; }
.sm-blok h3 { margin-bottom: 16px; font-size: 1.05rem; }
.sm-samenvatting { position: sticky; top: 92px; }
.sm-regel { display: flex; justify-content: space-between; gap: 10px; padding: 9px 0; border-bottom: 1px dashed var(--lijn); font-size: 0.93rem; }
.sm-regel .prijs { font-weight: 700; white-space: nowrap; }
.sm-totaal { display: flex; justify-content: space-between; font-weight: 800; font-size: 1.25rem; padding-top: 14px; }
.sm-kpi { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 16px; }
input[type="range"] { width: 100%; accent-color: var(--groen); height: 34px; cursor: pointer; }
.slider-kop { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 2px; }
.slider-kop output { font-weight: 800; color: var(--groen); font-size: 1.05rem; }
.pakket-banner {
  background: var(--groen-licht); border: 1.5px solid var(--groen); border-radius: 12px;
  padding: 16px 20px; margin-bottom: 22px; font-size: 0.95rem; display: none;
}

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
  .sm-layout { grid-template-columns: 1fr; }
  .sm-samenvatting { position: static; }
  .promo-band { grid-template-columns: 1fr; }
  .sm-kpi { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}