/* Videooversikten. Fargene, toppen og boksene er de samme som på landingssiden (energy/landing/landing, assets/enkel.css). */
:root{
  --bg:#fff; --panel:#f2f6f9; --fg:#10222f; --dim:#4a6072; --line:#d5e0e9;
  --blue:#003c65; --link:#003c65; --brand:#4b96d1; --tag:#1f6aa5; --btn-bg:#003c65; --btn-fg:#fff;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#001a2c; --panel:#032740; --fg:#e8f0f6; --dim:#a6bccc; --line:#1b4463;
    --blue:#fff; --link:#64cbe6; --tag:#9cc8ee; --btn-bg:#4b96d1; --btn-fg:#001a2c; color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#001a2c; --panel:#032740; --fg:#e8f0f6; --dim:#a6bccc; --line:#1b4463;
  --blue:#fff; --link:#64cbe6; --tag:#9cc8ee; --btn-bg:#4b96d1; --btn-fg:#001a2c; color-scheme:dark;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);
  font:17px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Calibri,Arial,sans-serif}
.page,footer,header>div{max-width:1120px;margin:0 auto;padding-left:20px;padding-right:20px}
[hidden]{display:none!important}
a{color:var(--link)}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-radius:3px}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
.dim{color:var(--dim)}

.band{background:#003c65;color:#cfe0ec;font-size:.86rem;line-height:1.45}
.band p{max-width:1120px;margin:0 auto;padding:7px 20px}
.band b{color:#fff}
.band a{color:#9cc8ee}
header{border-bottom:2px solid var(--brand);background:var(--bg)}
header>div{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:18px;padding-bottom:10px}
.logo{display:flex;align-items:center;gap:14px;color:var(--blue);text-decoration:none}
.sintef-mark{display:block;flex:none;width:52px;height:46px}
.sintef-mark svg{display:block;width:100%;height:100%}
.brand-sep{width:1px;height:38px;background:var(--line);flex:none}
.logo img{display:block;height:34px;width:auto}
.logo:hover img{opacity:.85}
@media (max-width:600px){.logo{gap:9px}.sintef-mark{width:38px;height:34px}.brand-sep{height:28px}.logo img{height:26px}}
nav{display:flex;gap:4px 18px;flex-wrap:wrap;order:3;width:100%;margin-top:6px}
nav a{color:var(--fg);text-decoration:none;font-weight:600;font-size:.95rem;padding:4px 0;border-bottom:2px solid transparent}
nav a:hover{border-bottom-color:var(--brand)}
.tools button{font:inherit;font-size:.9rem;color:var(--fg);background:none;border:1px solid var(--line);border-radius:6px;padding:4px 10px;cursor:pointer}
.tools button:hover{background:var(--panel)}

main{padding-top:28px;padding-bottom:48px}
h1{font-size:1.8rem;line-height:1.2;margin:0 0 12px;color:var(--blue)}
h2{font-size:1.25rem;margin:36px 0 8px;color:var(--blue)}
section[id]{scroll-margin-top:16px}
p{margin:0 0 12px}
.lead{font-size:1.08rem;max-width:70ch}
.feil{background:var(--panel);border-left:4px solid var(--brand);border-radius:0 10px 10px 0;padding:14px 18px}

/* Tallene øverst */
.tall{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:20px 0 0}
.tall div{background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:0 10px 10px 0;padding:12px 16px}
.tall dt{font-size:.84rem;color:var(--dim)}
.tall dd{margin:0;font-size:1.35rem;white-space:nowrap;font-weight:700;line-height:1.25;color:var(--blue)}
@media (max-width:720px){.tall{grid-template-columns:repeat(2,minmax(0,1fr))}.tall dd{font-size:1.25rem}}

/* Boksene */
.samlinger,.videoer{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.samlinger{grid-template-columns:repeat(3,minmax(0,1fr))}
.videoer{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:900px){.samlinger,.videoer{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.samlinger,.videoer{grid-template-columns:minmax(0,1fr)}}
.kort{display:flex;flex-direction:column;min-width:0;background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden;transition:border-color .15s}
.kort:hover{border-color:var(--c,var(--brand))}
.samlinger .kort{border-top:3px solid var(--c,var(--brand))}
.kort h3 picture{display:inline-block;margin-right:6px;vertical-align:-3px}
.kort h3 picture img{display:block}
.bilde{position:relative;display:block;aspect-ratio:16/9;background:var(--line)}
.bilde img{display:block;width:100%;height:100%;object-fit:cover}
.varighet{position:absolute;right:8px;bottom:8px;background:rgba(0,26,44,.86);color:#fff;font-size:.78rem;font-weight:600;line-height:1;padding:4px 6px;border-radius:4px}
.tekst{display:flex;flex-direction:column;flex:1;padding:12px 14px 14px;min-width:0}
.kort h3{margin:0;font-size:1rem;line-height:1.3;overflow-wrap:anywhere}
.kort h3 a{text-decoration:none}
.kort h3 a:hover{text-decoration:underline}
.meta{margin:3px 0 0;font-size:.82rem;color:var(--dim)}
.besk{margin:8px 0 0;font-size:.92rem;color:var(--dim);display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;line-clamp:3;overflow:hidden;overflow-wrap:anywhere}
.merker{display:flex;flex-wrap:wrap;gap:4px;margin-top:auto;padding-top:10px}
.merker span{font-size:.72rem;font-weight:600;color:var(--tag);border:1px solid var(--line);background:var(--bg);border-radius:999px;padding:1px 8px}
.handling{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:12px}
.handling a{font-size:.84rem;font-weight:600;text-decoration:none;padding:4px 11px;border-radius:6px;background:var(--btn-bg);color:var(--btn-fg)}
.handling a:hover{filter:brightness(1.1)}
.spill{position:absolute;inset:0;margin:auto;width:54px;height:54px;border-radius:50%;background:rgba(0,26,44,.72);opacity:0;transition:opacity .15s}
.spill::after{content:"";position:absolute;left:21px;top:16px;border-style:solid;border-width:11px 0 11px 18px;border-color:transparent transparent transparent #fff}
.bilde:hover .spill,.bilde:focus-visible .spill{opacity:1}

/* Søk, sortering og filter */
.verktoy{display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center;margin:10px 0}
.sok{flex:1 1 280px}
.verktoy input,.verktoy select{font:inherit;font-size:.95rem;color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:6px 10px}
.sok input{width:100%}
.sorter{display:flex;align-items:center;gap:8px;font-size:.92rem}
.filter{display:flex;flex-wrap:wrap;gap:4px;margin:0 0 8px}
.filter button{font:inherit;font-size:.82rem;font-weight:600;color:var(--fg);background:none;border:1px solid var(--line);border-radius:999px;padding:2px 10px;cursor:pointer}
.filter button:hover{background:var(--panel)}
.filter button[aria-pressed="true"]{background:var(--btn-bg);border-color:var(--btn-bg);color:var(--btn-fg)}
.treff{font-size:.9rem;margin:0 0 10px}

/* Avspilleren */
dialog{width:min(980px,calc(100vw - 32px));max-height:calc(100vh - 32px);padding:0;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--fg)}
dialog::backdrop{background:rgba(0,26,44,.78)}
.sp-topp{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:12px 14px 10px 18px}
.sp-topp h2{margin:0;font-size:1.1rem;line-height:1.3;overflow-wrap:anywhere}
#sp-lukk{flex:none;font:inherit;font-size:1.3rem;line-height:1;color:var(--fg);background:none;border:1px solid var(--line);border-radius:6px;width:32px;height:32px;cursor:pointer}
#sp-lukk:hover{background:var(--panel)}
.sp-ramme{aspect-ratio:16/9;background:#000}
.sp-ramme iframe{display:block;width:100%;height:100%;border:0}
.sp-tekst{padding:12px 18px 16px}
.sp-tekst .meta{margin:0 0 6px}
#sp-besk{margin:0;font-size:.95rem;white-space:pre-line;overflow-wrap:anywhere}
#sp-besk:empty{display:none}

footer{padding-top:16px;padding-bottom:40px;border-top:1px solid var(--line);font-size:.9rem;color:var(--dim)}
footer a{color:inherit}