/* Ventilasjonsrens-pris.no. Mobil først. Systemskrift, ingen nedlasting. */
:root {
  --primar: #1e3a5f;
  --aksent: #e8711a;
  --aksent-mork: #c75d0c;
  --tekst: #1f2937;
  --bakgrunn: #ffffff;
  --flate: #f3f6f9;
  --suksess: #2e7d4f;
  --advarsel: #b45309;
  --strek: #d9dee4;
  --grå: #4b5563;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.5;
  color: var(--tekst);
  background: var(--bakgrunn);
}
img, svg { max-width: 100%; }
a { color: var(--primar); text-decoration: underline; text-underline-offset: 2px; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, summary:focus-visible {
  outline: 3px solid var(--primar);
  outline-offset: 2px;
}
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skjult { display: none; }

h1, h2, h3 { color: var(--primar); line-height: 1.2; margin: 0 0 12px; }
h1 { font-size: 28px; margin-top: 24px; }
h2 { font-size: 22px; margin-top: 40px; }
h3 { font-size: 18px; }
p { margin: 0 0 14px; }
ul, ol { margin: 0 0 14px; padding-left: 22px; }
li { margin-bottom: 6px; }
@media (min-width: 768px) {
  body { font-size: 18px; }
  h1 { font-size: 38px; margin-top: 36px; }
  h2 { font-size: 28px; }
  h3 { font-size: 20px; }
}

.innhold { max-width: 720px; margin: 0 auto; padding: 0 16px 48px; }

/* Header */
.topp { position: sticky; top: 0; z-index: 20; background: #fff; border-bottom: 1px solid var(--strek); }
.topp-inn { display: flex; align-items: center; gap: 8px; max-width: 1040px; margin: 0 auto; padding: 8px 16px; position: relative; }
.ordmerke { flex: 1 1 0; min-width: 0; font-size: 14px; font-weight: 700; line-height: 1.2; color: var(--primar); text-decoration: none; }
.topp-knapp { flex: 0 0 auto; }
.hamburger {
  flex: 0 0 auto; width: 40px; height: 44px; padding: 0; display: inline-flex; align-items: center; justify-content: center;
  background: transparent; border: 0; color: var(--primar); cursor: pointer;
}
.meny { display: none; }
.meny.apen {
  display: flex; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0;
  background: #fff; border-bottom: 1px solid var(--strek); padding: 8px 16px 16px;
}
.meny a { padding: 12px 0; font-size: 18px; font-weight: 600; color: var(--primar); text-decoration: none; border-bottom: 1px solid var(--strek); }
.meny a:last-child { border-bottom: 0; }
@media (min-width: 900px) {
  .ordmerke { flex: 0 0 auto; font-size: 18px; margin-right: 8px; }
  .meny { display: flex; flex: 1 1 auto; justify-content: flex-end; gap: 20px; position: static; }
  .meny a { padding: 6px 0; font-size: 16px; border: 0; }
  .hamburger { display: none; }
}

/* Knapper. Ingen primærknapp har mindre enn 19 px fet tekst. */
.knapp {
  display: inline-flex; align-items: center; justify-content: center; text-align: center;
  min-height: 48px; padding: 10px 20px; border-radius: 8px; font-family: inherit; text-decoration: none; cursor: pointer;
  border: 2px solid transparent;
}
.knapp-primar { background: var(--aksent); color: #fff; font-size: 19px; font-weight: 700; line-height: 1.2; }
.knapp-primar:hover { background: var(--aksent-mork); }
.knapp-sekundar { background: #fff; color: var(--primar); border-color: var(--primar); font-size: 17px; font-weight: 600; }
.knapp-sekundar:hover { background: var(--flate); }
.topp-knapp { padding: 8px 10px; min-height: 44px; }
@media (min-width: 900px) { .topp-knapp { padding: 10px 20px; } }
main .knapp { width: 100%; margin-top: 4px; }
main .knapp + .knapp { margin-top: 12px; }
@media (min-width: 560px) { main .knapp { width: auto; } main .knapp + .knapp { margin-top: 4px; margin-left: 12px; } }

/* Prisspennboks */
.prisboks { background: var(--flate); border: 1px solid var(--strek); border-left: 6px solid var(--aksent); border-radius: 8px; padding: 20px; margin: 0 0 24px; }
.prisoverskrift { margin: 0 0 4px; font-weight: 700; color: var(--primar); }
.pristall { margin: 0 0 6px; }
.pristall .tall { font-size: 32px; font-weight: 700; color: var(--primar); line-height: 1.15; white-space: nowrap; }
.pristall .mva { font-size: 14px; color: var(--grå); white-space: nowrap; }
@media (min-width: 768px) { .pristall .tall { font-size: 44px; } }
.kilde { font-size: 14px; color: var(--grå); margin-bottom: 12px; }
.smaa { font-size: 14px; color: var(--grå); }

/* Fordeler */
.fordeler ul, .fordeler-kort { list-style: none; padding: 0; margin: 0 0 20px; }
.fordeler ul { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 12px; }
@media (min-width: 768px) { .fordeler ul { grid-template-columns: repeat(3, 1fr); } }
.fordeler li, .fordeler-kort li, .tillit li { position: relative; padding-left: 26px; margin: 0; font-size: 16px; }
.fordeler li::before, .fordeler-kort li::before, .tillit li::before {
  content: "✓" / ""; position: absolute; left: 0; top: 0; color: var(--suksess); font-weight: 700;
}
.fordeler-kort { display: flex; flex-wrap: wrap; gap: 4px 16px; }

/* Kalkulator og skjema */
.kalkulator, .skjema { background: var(--flate); border: 1px solid var(--strek); border-radius: 8px; padding: 20px; margin: 32px 0; }
.kalkulator h2, .skjema h2 { margin-top: 0; }
.skjema { margin-bottom: 80px; } /* Plass så chatboblen ikke dekker send-knappen på mobil */
fieldset { border: 0; padding: 0; margin: 0 0 16px; min-width: 0; }
legend { font-weight: 700; padding: 0; margin-bottom: 8px; }
.valg { display: flex; flex-direction: column; gap: 8px; }
@media (min-width: 560px) { .valg { flex-direction: row; flex-wrap: wrap; } }
.valg-rad { display: flex; align-items: center; gap: 10px; min-height: 48px; padding: 8px 14px; background: #fff; border: 1px solid var(--strek); border-radius: 8px; cursor: pointer; }
.valg-rad input { width: 22px; height: 22px; margin: 0; accent-color: var(--primar); flex: 0 0 auto; }
.resultat { margin-top: 8px; }
.resultat .lead { margin-bottom: 4px; }
.resultat .tall { font-size: 28px; font-weight: 700; color: var(--primar); white-space: nowrap; }
.resultat-hale { margin-top: 8px; }

.felt { margin-bottom: 16px; }
.felt > label, .felt > legend { display: block; font-weight: 700; margin-bottom: 6px; }
input[type="text"], input[type="tel"], input[type="email"], textarea {
  width: 100%; min-height: 48px; padding: 10px 12px; font: inherit; font-size: 17px; color: var(--tekst);
  background: #fff; border: 1px solid #8a94a3; border-radius: 8px;
}
textarea { resize: vertical; }
.hjelp { font-size: 14px; color: var(--grå); margin-bottom: 6px; }
.feil { color: var(--advarsel); font-weight: 600; font-size: 16px; margin: 6px 0 0; }
.feil[hidden], [hidden] { display: none !important; }
.felt > label.samtykke-rad, .samtykke-rad { display: flex; align-items: flex-start; gap: 12px; font-weight: 400; cursor: pointer; }
.samtykke-rad input { width: 24px; height: 24px; margin: 2px 0 0; flex: 0 0 auto; accent-color: var(--primar); }
.lenke-under { margin: 8px 0 0 36px; font-size: 16px; }
.tillit { list-style: none; padding: 0; margin: 16px 0 0; }
.tillit li { margin-bottom: 4px; }
.takk { border: 2px solid var(--suksess); border-radius: 8px; background: #fff; padding: 16px; }
.takk-tittel { color: var(--suksess); font-weight: 700; font-size: 20px; margin-bottom: 6px; }
.takk p:last-child { margin-bottom: 0; }

/* Slik fungerer det */
.slik ol { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; counter-reset: steg; }
@media (min-width: 768px) { .slik ol { grid-template-columns: repeat(3, 1fr); } }
.slik li { counter-increment: steg; background: var(--flate); border: 1px solid var(--strek); border-radius: 8px; padding: 16px; margin: 0; }
.slik li::before { content: counter(steg); display: inline-flex; width: 32px; height: 32px; align-items: center; justify-content: center; margin-bottom: 8px; border-radius: 50%; background: var(--primar); color: #fff; font-weight: 700; }
.slik li strong { display: block; color: var(--primar); margin-bottom: 4px; }

/* FAQ */
.faq details { border-bottom: 1px solid var(--strek); }
.faq summary { padding: 14px 28px 14px 0; font-weight: 700; color: var(--primar); cursor: pointer; list-style: none; position: relative; min-height: 48px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+" / ""; position: absolute; right: 4px; top: 12px; font-size: 24px; line-height: 1; }
.faq details[open] summary::after { content: "−" / ""; }
.faq details p { margin: 0 0 14px; }

/* Fagfolk-boks */
.fagfolk { border: 2px solid var(--advarsel); border-radius: 8px; padding: 16px 20px; margin: 24px 0; }
.fagfolk h2 { margin: 0 0 10px; color: var(--advarsel); font-size: 22px; display: flex; align-items: center; gap: 10px; }
.fagfolk h2 svg { flex: 0 0 auto; }
.fagfolk ul { margin-bottom: 0; }

/* Kort med lenker */
.kort { display: grid; gap: 12px; margin-bottom: 24px; }
@media (min-width: 560px) { .kort { grid-template-columns: 1fr 1fr; } }
.kort div { border: 1px solid var(--strek); border-radius: 8px; padding: 16px; }
.kort h3 { margin: 0 0 6px; }
.kort p { margin-bottom: 8px; }

/* Bunntekst */
.bunn { background: var(--flate); border-top: 1px solid var(--strek); padding: 24px 0 96px; }
.bunn-inn { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
.bunn-lenker { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 6px 18px; }
.bunn-lenker li { margin: 0; }
.kilder-rad { font-size: 14px; }