:root{
  --ink:#10201c;
  --ink-2:#4a5f59;
  --paper:#ffffff;
  --wash:#eef4f1;
  --volt:#0f7a5f;
  --volt-2:#0b5f4a;
  --amber:#b26a00;
  --amber-soft:#fff6e6;
  --rule:#d3e0da;
  --mono:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'IBM Plex Sans',system-ui,sans-serif;
  background:var(--paper);color:var(--ink);line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{font-family:'Space Grotesk',sans-serif;line-height:1.2;letter-spacing:-0.015em;font-weight:700}
a{color:var(--volt)}
.wrap{max-width:900px;margin:0 auto;padding:0 22px}

/* ============ sticky topbar met code + CTA ============ */
.topbar{border-bottom:1px solid var(--rule);position:sticky;top:0;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);z-index:50}
.topbar .wrap{display:flex;gap:14px;align-items:center;height:60px;font-size:.86rem}
.topbar .brand{font-family:'Space Grotesk',sans-serif;font-weight:700;white-space:nowrap}
.topbar nav{margin-left:auto;display:flex;gap:18px;align-items:center}
.topbar nav a.lnk{color:var(--ink-2);text-decoration:none}
.topbar nav a.lnk:hover{color:var(--volt)}

/* code-chip in de balk: altijd zichtbaar, klik = kopieer */
.chip{
  display:inline-flex;align-items:center;gap:8px;cursor:pointer;
  font-family:var(--mono);font-weight:700;letter-spacing:.12em;font-size:.92rem;
  background:var(--wash);border:1px dashed var(--volt);color:var(--volt-2);
  padding:7px 12px;border-radius:3px;white-space:nowrap;
}
.chip:hover{background:#e3ede8}
.chip .lbl{font-family:'IBM Plex Sans',sans-serif;font-weight:500;letter-spacing:0;font-size:.78rem;color:var(--ink-2)}
.btn{
  display:inline-block;background:var(--volt);color:#fff;text-decoration:none;
  font-weight:600;padding:13px 24px;border-radius:3px;border:none;cursor:pointer;
  font-family:'IBM Plex Sans',sans-serif;font-size:1rem;line-height:1.3;
}
.btn:hover{background:var(--volt-2)}
.btn.sm{padding:9px 16px;font-size:.88rem}
.btn.big{padding:17px 32px;font-size:1.08rem}

/* ============ hero ============ */
.hero{padding:44px 0 40px;border-bottom:1px solid var(--rule)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:start}
.kicker{font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--amber);font-weight:600}
.hero h1{font-size:clamp(1.9rem,4.4vw,2.8rem);margin:12px 0 14px}
.hero h1 em{font-style:normal;color:var(--volt);border-bottom:3px solid var(--volt)}
.lede{font-size:1.06rem;color:var(--ink-2)}

/* het code-kaartje: de belangrijkste module, direct in beeld */
.codecard{border:2px solid var(--ink);border-radius:3px;overflow:hidden}
.codecard .head{background:var(--ink);color:#eaf3ef;padding:12px 18px;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;font-weight:600}
.codecard .body{padding:20px 18px}
.codebig{
  display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%;
  font-family:var(--mono);font-size:1.85rem;font-weight:700;letter-spacing:.18em;
  background:var(--wash);border:1px dashed var(--volt);color:var(--ink);
  padding:14px 16px;border-radius:3px;cursor:pointer;text-align:left;
}
.codebig:hover{background:#e3ede8}
.codebig .copy{font-family:'IBM Plex Sans',sans-serif;font-size:.74rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--volt);white-space:nowrap}
.codecard .btn{width:100%;text-align:center;margin-top:12px}
.codecard .note{font-size:.84rem;color:var(--ink-2);margin-top:12px}

/* trust-strip */
.trust{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.trust span{font-size:.8rem;color:var(--ink-2);background:var(--wash);border:1px solid var(--rule);padding:5px 11px;border-radius:99px}

section{padding:52px 0;border-bottom:1px solid var(--rule)}
section h2{font-size:clamp(1.35rem,3vw,1.8rem);margin-bottom:8px}
.sec-intro{color:var(--ink-2);margin-bottom:24px}

/* ============ rekenmodule ============ */
.rekenblok{background:var(--wash);border:1px solid var(--rule);border-radius:3px;padding:26px}
.rekenblok-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}
.rekenblok label{display:block;font-size:.84rem;font-weight:600;color:var(--ink-2);margin-bottom:10px}
.rekenblok input[type=range]{width:100%;accent-color:var(--volt);height:26px}
.kwh{font-family:'Space Grotesk',sans-serif;font-size:1.5rem;font-weight:700;color:var(--ink)}
.scale{display:flex;justify-content:space-between;font-size:.74rem;color:var(--ink-2);margin-top:2px}
.out{background:var(--paper);border:1px solid var(--rule);border-left:4px solid var(--volt);padding:18px 20px;border-radius:2px}
.out .lbl{font-size:.76rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);font-weight:600}
.out .big{font-family:'Space Grotesk',sans-serif;font-size:2.15rem;font-weight:700;color:var(--volt-2);line-height:1.15;margin-top:6px;font-variant-numeric:tabular-nums}
.out .sub{font-size:.85rem;color:var(--ink-2);margin-top:8px}
.out .extra{font-size:.85rem;color:var(--amber);background:var(--amber-soft);border:1px solid #f0dcb8;padding:8px 11px;border-radius:2px;margin-top:12px}

/* ============ situatie-rijen ============ */
.rows{border-top:1px solid var(--rule)}
.row{display:grid;grid-template-columns:96px 1fr;gap:16px;padding:18px 0;border-bottom:1px solid var(--rule);align-items:start}
.mark{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:.76rem;letter-spacing:.06em;line-height:1.5;padding:2px 9px;border-radius:99px;text-align:center;white-space:nowrap}
.yes{color:#fff;background:var(--volt)}
.no{color:#fff;background:#b3261e}
.maybe{color:#fff;background:var(--amber)}
.row h3{font-size:1.02rem;margin-bottom:4px}
.row p{color:var(--ink-2);font-size:.96rem}

/* ============ stappen ============ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:8px}
.step{border:1px solid var(--rule);border-top:3px solid var(--volt);padding:18px;border-radius:2px}
.step .n{font-family:var(--mono);font-weight:700;color:var(--volt);font-size:.82rem;letter-spacing:.1em}
.step h3{font-size:1rem;margin:8px 0 6px}
.step p{font-size:.92rem;color:var(--ink-2)}

/* ============ midden-CTA ============ */
.midcta{background:var(--wash);border:1px solid var(--rule);border-left:4px solid var(--volt);padding:22px 24px;border-radius:2px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;margin-top:26px}
.midcta p{font-weight:600;font-size:1.02rem}
.midcta .s{font-weight:400;font-size:.88rem;color:var(--ink-2);display:block;margin-top:2px}

/* ============ referral blok ============ */
.ref{background:var(--ink);color:#eaf3ef;padding:34px;border-radius:3px}
.ref h2{color:#fff}
.ref p{color:#b8ccc4}
.code-row{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0 14px}
.code-box{
  font-family:var(--mono);font-size:1.5rem;font-weight:700;letter-spacing:.16em;
  background:#1c322c;border:1px dashed #47665c;padding:12px 20px;color:#fff;cursor:pointer;
  display:inline-flex;align-items:center;gap:12px;border-radius:3px;
}
.code-box:hover{background:#24403a}
.code-box .copy{font-family:'IBM Plex Sans',sans-serif;font-size:.7rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:#8fd3bd}
.ref input{font-family:var(--mono);font-size:.9rem;padding:12px 14px;border:1px solid #47665c;background:#1c322c;color:#eaf3ef;flex:1;min-width:240px;border-radius:3px}
.fineprint{font-size:.82rem;color:#93aca3;margin-top:12px}

details{border-bottom:1px solid var(--rule);padding:16px 0}
summary{cursor:pointer;font-family:'Space Grotesk',sans-serif;font-weight:500;font-size:1.02rem}
details p{color:var(--ink-2);margin-top:10px;font-size:.96rem}

footer{padding:34px 0 90px;font-size:.84rem;color:var(--ink-2)}

/* ============ mobiele sticky balk ============ */
.mobibar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:60;
  background:rgba(255,255,255,.97);backdrop-filter:blur(8px);
  border-top:1px solid var(--rule);padding:10px 14px;
  gap:10px;align-items:center;box-shadow:0 -2px 14px rgba(16,32,28,.08);
}
.mobibar .c{font-family:var(--mono);font-weight:700;letter-spacing:.12em;font-size:.95rem;color:var(--volt-2);cursor:pointer}
.mobibar .btn{margin-left:auto}

/* toast bij kopieren */
.toast{
  position:fixed;left:50%;transform:translateX(-50%) translateY(20px);bottom:86px;z-index:70;
  background:var(--ink);color:#fff;padding:11px 20px;border-radius:99px;font-size:.88rem;font-weight:500;
  opacity:0;pointer-events:none;transition:opacity .18s ease,transform .18s ease;
}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}

@media(max-width:820px){
  .hero-grid{grid-template-columns:1fr;gap:26px}
  .rekenblok-grid{grid-template-columns:1fr;gap:20px}
  .steps{grid-template-columns:1fr}
  .topbar nav .lnk{display:none}
  .topbar .wrap{gap:10px}
  .ref{padding:24px}
  .mobibar{display:flex}
  .row{grid-template-columns:82px 1fr;gap:12px}
  .midcta{flex-direction:column;align-items:flex-start}
  .midcta .btn{width:100%;text-align:center}
}
@media(max-width:420px){
  .topbar .chip .lbl{display:none}
  .codebig{font-size:1.5rem}
}

/* ===== Taalkeuze ===== */
.langbar{border-bottom:1px solid var(--rule);background:var(--wash);font-size:.78rem}
.langbar .wrap{display:flex;gap:16px;align-items:center;justify-content:flex-end;height:34px}
.langbar a{color:var(--ink-2);text-decoration:none;letter-spacing:.09em}
.langbar a:hover{color:var(--volt)}
.langbar strong{color:var(--volt-2);letter-spacing:.09em;font-weight:600}