/* Onderhoud-Warmtepomp.be — visual identity: warm paper, editorial serif, terracotta+steel.
   Deliberately not a generic SaaS/AI template: bordered blocks over soft shadows,
   left-aligned editorial rhythm, serif display headings (system stack, no web fonts). */
:root{
  --paper:#f2f1ec; --surface:#fffefb; --ink:#191d21; --ink-soft:#3a3f45; --muted:#726a5e;
  --line:#dfdfd6; --line-dk:#c3c4b7;
  --accent:#1f6f5c; --accent-d:#175243; --accent-wash:#e2f0eb;   /* terracotta / heat */
  --steel:#7a5a2c; --steel-d:#5d4420; --steel-wash:#f2ebdd;      /* cool steel / water */
  --ok:#3d7a4c;
  --ink-hero:#15191d;
  --r:5px; --wrap:1140px;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Times New Roman",serif;
  --sans:"Segoe UI",system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--paper);line-height:1.62;font-size:17px;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);margin:0 0 .5em;font-weight:600;letter-spacing:-.01em;line-height:1.15}
h1{font-size:clamp(2rem,4.4vw,3.2rem)}
h2{font-size:clamp(1.55rem,3vw,2.2rem)}
h3{font-size:1.3rem}
p{margin:0 0 1rem}
a{color:var(--steel-d);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px;text-decoration-color:var(--line-dk)}
a:hover{color:var(--accent-d);text-decoration-color:var(--accent)}
img{max-width:100%;height:auto}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
.muted{color:var(--muted)}
.small{font-size:.85rem}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;background:#fff;padding:8px 14px;z-index:99}

/* Buttons — squared, confident, no gradients */
.btn{display:inline-block;font-family:var(--sans);font-weight:700;padding:.72rem 1.4rem;border-radius:var(--r);border:1.5px solid transparent;cursor:pointer;transition:.14s;text-align:center;font-size:1rem;text-decoration:none;letter-spacing:.01em}
.btn:hover{text-decoration:none}
.btn-accent{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-accent:hover{background:var(--accent-d);border-color:var(--accent-d);color:#fff}
.btn-ghost{background:transparent;color:var(--steel-d);border-color:var(--line-dk)}
.btn-ghost:hover{border-color:var(--steel);color:var(--steel-d)}
.btn-lg{padding:.92rem 1.7rem;font-size:1.06rem}
.btn-block{display:block;width:100%}

/* Utility bar */
.topbar{background:var(--ink-hero);color:#cdbfa8;font-size:.82rem}
.topbar .wrap{display:flex;justify-content:space-between;gap:16px;padding:7px 22px;flex-wrap:wrap}
.topbar a{color:#e9dcc5;text-decoration:none;font-weight:600}
.topbar strong{color:#fff}
@media(max-width:600px){.topbar .wrap>span:first-child{display:none}}

/* Header */
.site-header{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40}
.header-inner{display:flex;align-items:center;gap:22px;height:70px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand svg{display:block}
.brand-name{font-family:var(--serif);font-weight:600;font-size:1.2rem;letter-spacing:-.01em}
.brand-accent{color:var(--accent)}
.main-nav{display:flex;gap:26px;margin-left:auto}
.main-nav a{color:var(--ink-soft);font-weight:600;font-size:.96rem;text-decoration:none;font-family:var(--sans)}
.main-nav a:hover{color:var(--accent-d)}
.header-cta{margin-left:6px;padding:.55rem 1.15rem}
@media(max-width:880px){.main-nav{display:none}.header-cta{margin-left:auto}}

/* Hero — dark ink, editorial, asymmetric */
.hero{background:var(--ink-hero);color:#efe7d8;position:relative;padding:60px 0 66px;border-bottom:3px solid var(--accent)}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero h1{color:#fdfbf6}
.hero .eyebrow{font-family:var(--sans);text-transform:uppercase;letter-spacing:.16em;font-size:.74rem;font-weight:700;color:var(--accent);margin-bottom:14px}
.hero p.lead{font-size:1.16rem;color:#d3c8b5;margin-bottom:1.5rem;max-width:33em}
.hero .usp{list-style:none;padding:0;margin:0 0 1.6rem;display:grid;gap:.55rem}
.hero .usp li{padding-left:28px;position:relative;color:#e8dfce}
.hero .usp li::before{content:"";position:absolute;left:0;top:.62em;width:14px;height:2px;background:var(--accent)}
@media(max-width:880px){.hero .wrap{grid-template-columns:1fr;gap:30px}.hero{padding:40px 0 46px}}

/* Offerte card */
.offerte-card{background:var(--surface);color:var(--ink);border:1px solid var(--line-dk);border-top:4px solid var(--accent);border-radius:var(--r);padding:26px;box-shadow:0 12px 30px rgba(21,25,29,.18)}
.offerte-card h2{font-size:1.5rem}
.offerte-form{display:grid;gap:14px;margin-top:14px}
.field{display:grid;gap:6px}
.field label{font-weight:600;font-size:.88rem;font-family:var(--sans);color:var(--ink-soft)}
.field input,.field select,.field textarea{width:100%;padding:.7rem .8rem;border:1.5px solid var(--line-dk);border-radius:var(--r);font:inherit;font-size:1rem;background:#fff;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--steel);box-shadow:0 0 0 3px var(--steel-wash)}
.row-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:520px){.row-2{grid-template-columns:1fr}}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.86rem;color:var(--muted)}
.check input{margin-top:3px}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}
.form-msg{margin:.4rem 0 0;font-weight:600;min-height:1.2em;font-family:var(--sans)}
.form-msg.err{color:var(--accent-d)}.form-msg.ok{color:var(--ok)}
.trust-line{text-align:center;margin-top:.2rem}
section.offerte{padding:0}

/* Sections — editorial, left-aligned */
.section{padding:60px 0}
.section.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin:0 0 32px}
.section-head h2::before{content:"";display:block;width:44px;height:3px;background:var(--accent);margin-bottom:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line-dk)}
.grid-3 .card{border:1px solid var(--line-dk);border-top:none;border-left:none}
.grid-3 .card:first-child{border-left:1px solid var(--line-dk)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:820px){.grid-3{grid-template-columns:1fr}.grid-3 .card{border-left:1px solid var(--line-dk)}.grid-2{grid-template-columns:1fr}}
.card{background:var(--surface);padding:26px}
.card h3{margin-top:.3rem}
.card .ico{color:var(--accent);width:34px;height:34px;display:block;margin-bottom:10px}
.card .ico svg{width:100%;height:100%;stroke:currentColor;fill:none;stroke-width:1.6}
.badge{display:inline-block;background:var(--steel-wash);color:var(--steel-d);font-family:var(--sans);font-weight:700;font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;padding:.3rem .7rem;border-radius:2px;margin-bottom:14px}
.prose{max-width:720px}
.prose h2{margin-top:1.7em}
.prose ul{padding-left:1.1rem}
.prose li{margin-bottom:.35rem}
.prose blockquote{border-left:3px solid var(--accent);background:var(--accent-wash);margin:1.3rem 0;padding:.9rem 1.15rem;font-family:var(--serif);font-size:1.12rem;font-style:italic;color:var(--ink)}

/* Table */
.table-wrap{overflow-x:auto;margin:1.3rem 0}
table.data{width:100%;border-collapse:collapse;background:var(--surface);font-size:.95rem;font-family:var(--sans)}
table.data th,table.data td{padding:.7rem .85rem;border:1px solid var(--line-dk);text-align:left}
table.data th{background:var(--ink-hero);color:#f3ead9;font-weight:600}
table.data tr:nth-child(even) td{background:#faf6ee}

/* FAQ */
.faq details{background:var(--surface);border:1px solid var(--line-dk);border-radius:var(--r);padding:0 18px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:600;font-family:var(--serif);font-size:1.08rem;padding:16px 0;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--accent);font-weight:400;font-size:1.4rem;line-height:1}
.faq details[open] summary::after{content:"\2013"}
.faq details>*:not(summary){padding-bottom:16px;margin:0}

/* City / link chips */
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips a{background:var(--surface);border:1px solid var(--line-dk);border-radius:2px;padding:.42rem .9rem;font-size:.9rem;color:var(--ink-soft);text-decoration:none;font-family:var(--sans)}
.chips a:hover{border-color:var(--accent);color:var(--accent-d)}

/* CTA band */
.cta-band{background:var(--steel-wash);border:1px solid var(--line-dk);border-left:4px solid var(--steel);border-radius:var(--r);padding:30px 32px;margin:42px 0}
.cta-band h2::before{display:none}

/* Breadcrumb */
.crumb{font-size:.82rem;color:var(--muted);padding:18px 0 0;font-family:var(--sans)}
.crumb a{color:var(--muted);text-decoration:none}
.crumb a:hover{color:var(--accent-d)}

/* Footer */
.site-footer{background:var(--ink-hero);color:#b8ab95;margin-top:0;padding:48px 0 22px;border-top:3px solid var(--accent)}
.site-footer h4{color:#fdfbf6;font-family:var(--serif);font-size:1.05rem;margin-bottom:.7rem}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:.42rem}
.site-footer a{color:#cdbfa8;text-decoration:none}
.site-footer a:hover{color:#fff}
.footer-brand{color:#fdfbf6;font-family:var(--serif);font-size:1.15rem;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.footer-legal{border-top:1px solid #2b3138;margin-top:30px;padding-top:16px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.8rem;color:#8a7f6d;font-family:var(--sans)}
@media(max-width:820px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr}}