/* racefiets.net — koersbord design. Systeemfonts, geen externe requests. */
:root{
  --ink:#17191e;--paper:#fff;--oranje:#e5541c;--staal:#2e4a63;
  --krijt:#f1f2f4;--lijn:#d9dce0;--muted:#5a6068;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,Ubuntu,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;font:400 1.06rem/1.65 var(--sans);color:var(--ink);background:var(--paper);-webkit-text-size-adjust:100%}
a{color:var(--staal)}
a:hover{color:var(--oranje)}
:focus-visible{outline:3px solid var(--oranje);outline-offset:2px}
.wrap{max-width:72rem;margin:0 auto;padding:0 1.25rem}

/* Header + nav (CSS-only) */
header.site{border-bottom:3px solid var(--ink);background:var(--paper)}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.9rem 0}
.logo{font-weight:800;font-size:1.35rem;letter-spacing:-.02em;text-decoration:none;color:var(--ink)}
.logo b{color:var(--oranje)}
nav.main ul{list-style:none;display:flex;flex-wrap:wrap;gap:.15rem;margin:0;padding:0}
nav.main a{display:block;padding:.45rem .7rem;text-decoration:none;font-weight:600;font-size:.92rem;color:var(--ink);border-radius:2px}
nav.main a:hover,nav.main a[aria-current="page"]{background:var(--ink);color:#fff}
details.menu{display:none}
@media (max-width:820px){
  nav.main{display:none}
  details.menu{display:block}
  details.menu summary{list-style:none;cursor:pointer;font-weight:700;padding:.5rem .8rem;border:2px solid var(--ink);border-radius:2px}
  details.menu summary::-webkit-details-marker{display:none}
  details.menu[open] summary{background:var(--ink);color:#fff}
  details.menu ul{list-style:none;margin:.6rem 0 0;padding:.4rem;border:2px solid var(--ink);border-radius:2px;position:absolute;right:1.25rem;left:1.25rem;background:#fff;z-index:9}
  details.menu a{display:block;padding:.55rem .7rem;text-decoration:none;color:var(--ink);font-weight:600}
  details.menu a:hover{background:var(--krijt)}
}

/* Signatuur: koersbord-label */
.bord{display:inline-flex;align-items:center;gap:.5rem;background:var(--oranje);color:#fff;font-weight:800;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;padding:.35rem .8rem .35rem .7rem;clip-path:polygon(0 0,100% 0,calc(100% - .6rem) 100%,0 100%)}
.bord::before{content:"»"}

/* Hero */
.hero{padding:3.2rem 0 2.4rem;border-bottom:1px solid var(--lijn)}
.hero h1{font-size:clamp(2rem,5vw,3.3rem);line-height:1.08;letter-spacing:-.03em;font-weight:800;margin:.9rem 0 .8rem;max-width:22ch}
.hero p{max-width:58ch;font-size:1.15rem;color:var(--muted);margin:0 0 1.4rem}
.klim{display:block;width:100%;height:auto;color:var(--lijn);margin-top:2rem}

/* Knoppen */
.btn{display:inline-block;background:var(--ink);color:#fff;text-decoration:none;font-weight:700;padding:.65rem 1.2rem;border-radius:2px}
.btn:hover{background:var(--oranje);color:#fff}
.btn.amz{background:var(--oranje)}
.btn.amz:hover{background:var(--ink)}
.btn.licht{background:transparent;color:var(--ink);border:2px solid var(--ink);padding:.55rem 1.1rem}
.btn.licht:hover{background:var(--ink);color:#fff}

/* Secties + grid */
section{padding:2.6rem 0}
section h2{font-size:1.7rem;letter-spacing:-.02em;margin:.9rem 0 .6rem}
.grid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fill,minmax(15.5rem,1fr));margin-top:1.2rem}
.card{border:1px solid var(--lijn);border-top:3px solid var(--ink);border-radius:2px;padding:1.1rem 1.2rem;background:#fff}
.card:hover{border-top-color:var(--oranje)}
.card h3{margin:0 0 .35rem;font-size:1.08rem;letter-spacing:-.01em}
.card h3 a{text-decoration:none;color:var(--ink)}
.card h3 a:hover{color:var(--oranje)}
.card p{margin:0;font-size:.93rem;color:var(--muted)}
.card .soon{display:inline-block;margin-top:.5rem;font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--staal)}

/* Artikelpagina's */
main.artikel{max-width:46rem;margin:0 auto;padding:2.4rem 1.25rem 3rem}
main.artikel h1{font-size:clamp(1.8rem,4vw,2.5rem);line-height:1.12;letter-spacing:-.025em;margin:.9rem 0 .6rem}
main.artikel h2{font-size:1.45rem;letter-spacing:-.015em;margin:2.2rem 0 .5rem;padding-top:1.4rem;border-top:1px solid var(--lijn)}
main.artikel h3{font-size:1.1rem;margin:1.4rem 0 .3rem}
.intro{font-size:1.14rem;color:var(--muted)}
.crumbs{font-size:.85rem;color:var(--muted)}
.crumbs a{color:var(--muted)}
ul.check{padding-left:1.2rem}
ul.check li{margin:.4rem 0}

/* Prijsklassen */
.tier{border:1px solid var(--lijn);border-left:4px solid var(--oranje);border-radius:2px;padding:1rem 1.2rem;margin:1rem 0;background:var(--krijt)}
.tier h3{margin:0 0 .3rem}
.tier p{margin:0 0 .8rem}
.tier .prijs{float:right;font-weight:800;color:var(--staal);font-size:.9rem}

/* FAQ */
.faq details{border:1px solid var(--lijn);border-radius:2px;margin:.5rem 0;background:#fff}
.faq summary{cursor:pointer;font-weight:700;padding:.75rem 1rem}
.faq details[open] summary{border-bottom:1px solid var(--lijn)}
.faq details p{padding:.6rem 1rem;margin:0}

/* Disclosure + verwant */
.disclosure{font-size:.85rem;color:var(--muted);border:1px dashed var(--lijn);border-radius:2px;padding:.7rem .9rem;margin:1.6rem 0}
.verwant{background:var(--krijt);border-radius:2px;padding:1.1rem 1.2rem;margin-top:2.4rem}
.verwant h2{border:0;margin:0 0 .5rem;padding:0;font-size:1.15rem}
.verwant ul{margin:0;padding-left:1.2rem}
.verwant li{margin:.3rem 0}

/* Footer */
footer.site{border-top:3px solid var(--ink);margin-top:2rem;padding:2.2rem 0 2.6rem;background:var(--krijt)}
footer.site .kolommen{display:grid;gap:1.6rem;grid-template-columns:repeat(auto-fit,minmax(13rem,1fr))}
footer.site h2{font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;margin:0 0 .6rem}
footer.site ul{list-style:none;margin:0;padding:0;font-size:.92rem}
footer.site li{margin:.3rem 0}
footer.site a{color:var(--ink);text-decoration:none}
footer.site a:hover{color:var(--oranje);text-decoration:underline}
footer.site .fijn{margin-top:1.8rem;font-size:.82rem;color:var(--muted)}