/* kunnskapsbasen.org — visuell identitet.
 *
 * Ikke et trykt leksikon (det er Norgespedia). Dette er et *slektsregister* —
 * kolofonen først, slektslinjen synlig, former som ryggtittel i margen.
 * Kjølig off-white, blekkblått, én aksent i dyp teal. Source Serif 4 til
 * brødtekst, IBM Plex Sans til UI. Ingen kort med skygger, ingen gradienter.
 */

@font-face { font-family: "Source Serif 4"; src: url(/assets/fonts/source-serif-4-400.woff2) format("woff2"); font-weight: 400; font-display: swap; font-style: normal; }
@font-face { font-family: "Source Serif 4"; src: url(/assets/fonts/source-serif-4-600.woff2) format("woff2"); font-weight: 600; font-display: swap; font-style: normal; }
@font-face { font-family: "Source Serif 4"; src: url(/assets/fonts/source-serif-4-400i.woff2) format("woff2"); font-weight: 400; font-display: swap; font-style: italic; }
@font-face { font-family: "IBM Plex Sans"; src: url(/assets/fonts/ibm-plex-sans-400.woff2) format("woff2"); font-weight: 400; font-display: swap; font-style: normal; }
@font-face { font-family: "IBM Plex Sans"; src: url(/assets/fonts/ibm-plex-sans-500.woff2) format("woff2"); font-weight: 500; font-display: swap; font-style: normal; }
@font-face { font-family: "IBM Plex Sans"; src: url(/assets/fonts/ibm-plex-sans-600.woff2) format("woff2"); font-weight: 600; font-display: swap; font-style: normal; }

:root {
  --kb-papir: #f3f5f7;
  --kb-flate: #e8ecf0;
  --kb-kort: #ffffff;
  --kb-blekk: #0f1b2d;
  --kb-blekk-svak: #4a5568;
  --kb-linje: #cfd6de;
  --kb-linje-svak: #e2e7ec;
  --kb-blekkblaa: #0f1b2d;
  --kb-teal: #1f6f6a;
  --kb-teal-lys: #2a8a83;
  --kb-teal-svak: #d5ebe9;

  --kb-serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --kb-sans: "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, sans-serif;

  --kb-bredde: 1080px;
  --kb-tekst: 62ch;
  --kb-rygg: 2.4rem;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--kb-papir);
  color: var(--kb-blekk);
  font: 400 1.0625rem/1.65 var(--kb-serif);
  font-feature-settings: "kern" 1, "liga" 1;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--kb-sans);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.018em;
  margin: 0;
  color: var(--kb-blekk);
}

a {
  color: var(--kb-teal);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
  text-decoration-color: rgba(31, 111, 106, .35);
}
a:hover { color: var(--kb-blekk); text-decoration-color: currentColor; }
a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible {
  outline: 2px solid var(--kb-teal); outline-offset: 2px;
}

.kb-skjult { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.kb-hopp {
  position: absolute; left: -999px; top: 0; z-index: 99;
  background: var(--kb-blekk); color: #fff; padding: 10px 16px;
  font: 600 .9rem var(--kb-sans);
}
.kb-hopp:focus { left: 8px; top: 8px; }

/* ---------- topp: merke + søk på én rad, former under ---------- */
.kb-topp { background: var(--kb-blekk); color: #fff; }

.kb-baand {
  max-width: var(--kb-bredde); margin: 0 auto; padding: 16px 22px 12px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
}

.kb-merke { text-decoration: none; display: block; color: inherit; }
.kb-merke-navn {
  display: block; font: 600 1.55rem/1 var(--kb-sans); color: #fff;
  letter-spacing: -0.03em;
}
.kb-merke:hover .kb-merke-navn { color: var(--kb-teal-svak); }
.kb-merke-under {
  display: block; margin-top: 4px; font: 400 .75rem/1.3 var(--kb-sans);
  color: rgba(255,255,255,.62); letter-spacing: .06em; text-transform: uppercase;
}

.kb-sokefelt { display: flex; gap: 0; min-width: 260px; flex: 0 1 340px; }
.kb-sokefelt input {
  flex: 1; min-width: 0; font: 400 .95rem var(--kb-sans); padding: 9px 12px;
  border: 1px solid rgba(255,255,255,.22); border-right: 0; background: rgba(255,255,255,.08);
  color: #fff;
}
.kb-sokefelt input::placeholder { color: rgba(255,255,255,.45); }
.kb-sokefelt button {
  font: 600 .85rem var(--kb-sans); padding: 9px 16px; cursor: pointer;
  background: var(--kb-teal); color: #fff; border: 1px solid var(--kb-teal);
}
.kb-sokefelt button:hover { background: var(--kb-teal-lys); border-color: var(--kb-teal-lys); }

.kb-form-nav { border-top: 1px solid rgba(255,255,255,.12); background: #162338; }
.kb-form-nav ul {
  max-width: var(--kb-bredde); margin: 0 auto; padding: 0 14px;
  list-style: none; display: flex; flex-wrap: wrap; gap: 0;
}
.kb-form-nav a {
  display: block; padding: 10px 14px; font: 500 .88rem/1 var(--kb-sans);
  color: rgba(255,255,255,.78); text-decoration: none; letter-spacing: .02em;
  border-bottom: 2px solid transparent;
}
.kb-form-nav a:hover { color: #fff; }
.kb-form-nav a[aria-current="true"] {
  color: #fff; border-bottom-color: var(--kb-teal-lys);
}

/* ---------- hoved ---------- */
.kb-hoved { max-width: var(--kb-bredde); margin: 0 auto; padding: 28px 22px 64px; }

.kb-brødsmule {
  font: 400 .82rem/1.4 var(--kb-sans); color: var(--kb-blekk-svak); margin: 0 0 18px;
}
.kb-brødsmule a { color: var(--kb-blekk-svak); text-decoration: none; }
.kb-brødsmule a:hover { color: var(--kb-teal); text-decoration: underline; }
.kb-brødsmule span[aria-hidden] { margin: 0 .4em; opacity: .5; }

/* verk: ryggtittel + kolofon + slekt */
.kb-verk {
  display: grid;
  grid-template-columns: var(--kb-rygg) minmax(0, 1fr);
  gap: 0 28px;
  align-items: start;
}
.kb-rygg {
  writing-mode: vertical-rl; transform: rotate(180deg);
  font: 600 .78rem/1 var(--kb-sans); letter-spacing: .14em; text-transform: uppercase;
  color: var(--kb-teal); border-right: 3px solid var(--kb-teal);
  padding: 0 10px 0 0; min-height: 8rem; align-self: stretch;
}
.kb-verk-hode { margin-bottom: 22px; }
.kb-verk-hode h1 {
  font-size: clamp(1.7rem, 3.2vw, 2.35rem); font-weight: 600; margin: 0 0 10px;
}
.kb-hva {
  font: 400 1.15rem/1.55 var(--kb-serif); max-width: var(--kb-tekst); margin: 0;
  color: var(--kb-blekk);
}
.kb-hva em { font-style: italic; }

.kb-kolofon {
  background: var(--kb-kort); border: 1px solid var(--kb-linje);
  border-left: 4px solid var(--kb-blekk); margin: 0 0 28px; padding: 0;
  max-width: 36rem;
}
.kb-kolofon h2 {
  font: 600 .72rem/1 var(--kb-sans); letter-spacing: .12em; text-transform: uppercase;
  color: var(--kb-blekk-svak); padding: 12px 16px 8px; margin: 0;
}
.kb-kolofon dl { margin: 0; padding: 0 16px 14px; }
.kb-kolofon .kb-rad {
  display: grid; grid-template-columns: 8.5rem minmax(0, 1fr);
  gap: 8px 12px; padding: 7px 0; border-top: 1px solid var(--kb-linje-svak);
  font-size: .98rem;
}
.kb-kolofon dt {
  font: 500 .82rem/1.45 var(--kb-sans); color: var(--kb-blekk-svak); margin: 0;
}
.kb-kolofon dd { margin: 0; }

.kb-blokk { margin: 0 0 28px; max-width: var(--kb-tekst); }
.kb-blokk h2 {
  font: 600 .78rem/1 var(--kb-sans); letter-spacing: .1em; text-transform: uppercase;
  color: var(--kb-teal); margin: 0 0 12px; padding-bottom: 6px;
  border-bottom: 1px solid var(--kb-linje);
}

.kb-slekt { list-style: none; margin: 0; padding: 0; }
.kb-slekt li {
  position: relative; padding: 10px 0 10px 22px;
  border-left: 2px solid var(--kb-teal-svak); margin-left: 6px;
}
.kb-slekt li::before {
  content: ""; position: absolute; left: -5px; top: 1.05em;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--kb-teal); border: 2px solid var(--kb-papir);
}
.kb-slekt .kb-slekt-type {
  display: block; font: 500 .75rem/1.2 var(--kb-sans); letter-spacing: .06em;
  text-transform: uppercase; color: var(--kb-blekk-svak); margin-bottom: 2px;
}

.kb-merker { list-style: none; margin: 0; padding: 0; }
.kb-merker li {
  padding: 8px 0 8px 14px; border-left: 3px solid var(--kb-flate);
  margin-bottom: 4px;
}

.kb-rekkefolge { list-style: none; margin: 0; padding: 0; counter-reset: kb-r; }
.kb-rekkefolge li {
  counter-increment: kb-r; display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr) auto; gap: 10px; align-items: baseline;
  padding: 8px 0; border-bottom: 1px solid var(--kb-linje-svak);
}
.kb-rekkefolge li::before {
  content: counter(kb-r); font: 600 .9rem var(--kb-sans); color: var(--kb-teal);
}
.kb-rekkefolge .kb-aar { font: 500 .85rem var(--kb-sans); color: var(--kb-blekk-svak); }

.kb-ikke-her {
  background: var(--kb-flate); border-left: 3px solid var(--kb-blekk-svak);
  padding: 12px 16px; font-size: .98rem; margin: 0 0 28px; max-width: var(--kb-tekst);
}

.kb-faq details {
  border-bottom: 1px solid var(--kb-linje); padding: 10px 0;
}
.kb-faq summary {
  font: 500 1rem/1.4 var(--kb-sans); cursor: pointer; list-style: none;
}
.kb-faq summary::-webkit-details-marker { display: none; }
.kb-faq summary::before {
  content: "+"; display: inline-block; width: 1.2em; color: var(--kb-teal); font-weight: 600;
}
.kb-faq details[open] summary::before { content: "−"; }
.kb-faq .kb-faq-svar { margin: 8px 0 4px 1.2em; max-width: 58ch; }

.kb-kilder { list-style: none; margin: 0; padding: 0; font-size: .92rem; }
.kb-kilder li { padding: 5px 0; border-bottom: 1px solid var(--kb-linje-svak); }
.kb-kilder .kb-utgiver { color: var(--kb-blekk-svak); font: 400 .8rem var(--kb-sans); }

.kb-meta-fot {
  margin-top: 36px; padding-top: 14px; border-top: 1px solid var(--kb-linje);
  font: 400 .82rem/1.4 var(--kb-sans); color: var(--kb-blekk-svak); max-width: var(--kb-tekst);
}

/* hubber / lister */
.kb-liste { list-style: none; margin: 0; padding: 0; }
.kb-liste li {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px;
  padding: 10px 0; border-bottom: 1px solid var(--kb-linje-svak);
  font-size: 1rem;
}
.kb-liste a { text-decoration: none; color: var(--kb-blekk); font-family: var(--kb-sans); font-weight: 500; }
.kb-liste a:hover { color: var(--kb-teal); text-decoration: underline; }
.kb-liste .kb-aar { font: 400 .85rem var(--kb-sans); color: var(--kb-blekk-svak); }

.kb-rutenett {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px; margin: 18px 0 0;
}
.kb-rute {
  background: var(--kb-kort); border: 1px solid var(--kb-linje); padding: 14px 16px;
  text-decoration: none; color: inherit; display: block;
}
.kb-rute:hover { border-color: var(--kb-teal); }
.kb-rute strong { display: block; font: 600 1rem/1.25 var(--kb-sans); margin-bottom: 4px; }
.kb-rute span { font: 400 .82rem var(--kb-sans); color: var(--kb-blekk-svak); }

.kb-hero {
  margin: 0 0 36px; padding-bottom: 28px; border-bottom: 2px solid var(--kb-blekk);
}
.kb-hero h1 { font-size: clamp(2rem, 4vw, 2.8rem); margin: 0 0 12px; }
.kb-hero p { max-width: 48ch; margin: 0; font-size: 1.12rem; color: var(--kb-blekk-svak); }

/* footer */
.kb-bunn {
  background: var(--kb-blekk); color: rgba(255,255,255,.78);
  padding: 40px 22px 28px; font: 400 .92rem/1.55 var(--kb-sans);
}
.kb-bunn a { color: #fff; text-decoration-color: rgba(255,255,255,.3); }
.kb-bunn a:hover { color: var(--kb-teal-svak); }
.kb-bunn-rad {
  max-width: var(--kb-bredde); margin: 0 auto 28px;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 28px;
}
.kb-bunn h2 {
  font: 600 .72rem/1 var(--kb-sans); letter-spacing: .12em; text-transform: uppercase;
  color: rgba(255,255,255,.5); margin: 0 0 12px;
}
.kb-bunn ul { list-style: none; margin: 0; padding: 0; }
.kb-bunn li { margin: 0 0 6px; }
.kb-kolofon-bunn {
  max-width: var(--kb-bredde); margin: 0 auto; padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,.12);
  font-size: .8rem; color: rgba(255,255,255,.45); text-align: center;
}

@media (max-width: 720px) {
  .kb-verk { grid-template-columns: 1fr; }
  .kb-rygg {
    writing-mode: horizontal-tb; transform: none;
    border-right: 0; border-bottom: 3px solid var(--kb-teal);
    padding: 0 0 8px; min-height: 0; margin-bottom: 12px;
  }
  .kb-kolofon .kb-rad { grid-template-columns: 1fr; gap: 2px; }
  .kb-baand { padding: 14px 16px 10px; }
  .kb-hoved { padding: 20px 16px 48px; }
}