/* =============================================================
   dstn-felles.css — Felles stilark for hele DSTN-universet
   Plassering: /home/dstn/public_html/matte.dstn.no/css/dstn-felles.css
   ============================================================= */

/* --- Reset & base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
    font-family: 'DM Sans', system-ui, sans-serif;
    line-height: 1.7;
    background: var(--bakgrunn);
    color: var(--tekst);
    min-height: 100vh;
}

/* --- Typografi --- */
h1, h2, h3, h4 {
    font-family: 'Syne', sans-serif;
    font-weight: 700;
    line-height: 1.25;
    color: var(--tekst);
}

a { color: var(--blaa); text-decoration: none; }
a:hover { text-decoration: underline; }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* --- Layout --- */
.container      { max-width: 1100px; margin: 0 auto; padding: 0 1.25rem; }
.container-smal { max-width: 780px;  margin: 0 auto; padding: 0 1.25rem; }

/* --- Navbar --- */
.navbar {
    position: sticky; top: 0; z-index: 100;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background: rgba(10, 15, 26, 0.85);
    border-bottom: 1px solid var(--border);
}

.navbar-inner {
    display: flex; align-items: center;
    justify-content: space-between;
    height: 60px;
    max-width: 1100px; margin: 0 auto; padding: 0 1.25rem; gap: 1rem;
}

.navbar-logo {
    font-family: 'Syne', sans-serif; font-size: 1.2rem; font-weight: 700;
    color: var(--tekst) !important; text-decoration: none !important;
    display: flex; align-items: center; gap: 0.4rem; white-space: nowrap;
}

.navbar-logo .logo-aksent { color: var(--blaa); }

.navbar-nav {
    display: flex; align-items: center; gap: 0.25rem;
    list-style: none; flex-wrap: wrap;
}

.navbar-nav a {
    display: block; padding: 0.35rem 0.75rem; border-radius: 6px;
    font-size: 0.875rem; color: var(--tekst-dempet);
    transition: color 0.15s, background 0.15s;
}

.navbar-nav a:hover, .navbar-nav a.aktiv {
    color: var(--tekst); background: rgba(255,255,255,0.06); text-decoration: none;
}

.sprak-velger { display: flex; gap: 4px; align-items: center; }
.sprak-velger a { font-size: 1.1rem; opacity: 0.5; transition: opacity 0.15s; text-decoration: none !important; }
.sprak-velger a:hover, .sprak-velger a.aktiv { opacity: 1; }

/* --- Kortgrid --- */
.kort-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; }

.kort {
    background: var(--bakgrunn2); border: 1px solid var(--border);
    border-radius: 10px; padding: 1.25rem;
    transition: border-color 0.15s, transform 0.15s;
    display: flex; flex-direction: column; gap: 0.5rem;
}

.kort:hover { border-color: var(--blaa); transform: translateY(-2px); text-decoration: none; }

.kort-tittel  { font-size: 1rem; font-weight: 600; color: var(--tekst); line-height: 1.35; }
.kort-ingress { font-size: 0.875rem; color: var(--tekst-dempet); line-height: 1.5; flex: 1; }
.kort-meta    { display: flex; align-items: center; gap: 0.5rem; margin-top: 0.25rem; }

/* --- Badges --- */
.badge {
    display: inline-block; font-size: 0.7rem; font-weight: 600;
    letter-spacing: 0.04em; padding: 2px 8px; border-radius: 20px; text-transform: uppercase;
}
.badge-vg1  { background: rgba(46,160,67,0.15);   color: #2ea043; }
.badge-vg2  { background: rgba(59,158,255,0.12);  color: #3b9eff; }
.badge-vg3  { background: rgba(240,136,62,0.15);  color: #f0883e; }
.badge-quiz { background: rgba(168,85,247,0.12);  color: #a855f7; }
.badge-ord  { background: rgba(139,148,158,0.15); color: #8b949e; }

/* --- Artikkelinnhold --- */
.artikkel-innhold { line-height: 1.8; }

.artikkel-innhold h2 {
    font-size: 1.4rem; margin: 2rem 0 0.75rem;
    padding-top: 1.5rem; border-top: 1px solid var(--border);
}

.artikkel-innhold h3 { font-size: 1.15rem; margin: 1.5rem 0 0.5rem; color: var(--blaa); }
.artikkel-innhold p  { margin-bottom: 1rem; }
.artikkel-innhold ul, .artikkel-innhold ol { margin: 0 0 1rem 1.5rem; }
.artikkel-innhold li { margin-bottom: 0.35rem; }

.artikkel-innhold table   { width: 100%; border-collapse: collapse; margin-bottom: 1.25rem; font-size: 0.9rem; }
.artikkel-innhold th      { background: var(--bakgrunn2); border: 1px solid var(--border); padding: 0.5rem 0.75rem; text-align: left; color: var(--blaa); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; }
.artikkel-innhold td      { border: 1px solid var(--border); padding: 0.5rem 0.75rem; }

/* Matteformel */
.formel-boks {
    background: rgba(59,158,255,0.06); border: 1px solid rgba(59,158,255,0.25);
    border-left: 3px solid var(--blaa); border-radius: 8px;
    padding: 1rem 1.25rem; margin: 1.25rem 0;
    font-family: 'Courier New', monospace; font-size: 1.05rem;
    text-align: center; color: var(--tekst);
}

.info-boks          { background: rgba(59,158,255,0.06);  border: 1px solid rgba(59,158,255,0.2);  border-radius: 8px; padding: 1rem 1.25rem; margin: 1.25rem 0; }
.info-boks.advarsel { background: rgba(240,136,62,0.06);  border-color: rgba(240,136,62,0.25); }
.info-boks.suksess  { background: rgba(46,160,67,0.06);   border-color: rgba(46,160,67,0.25); }

/* --- Soek --- */
.soek-felt {
    width: 100%; background: var(--bakgrunn2); border: 1px solid var(--border);
    border-radius: 8px; color: var(--tekst); font-size: 1rem;
    padding: 0.65rem 1rem; outline: none; transition: border-color 0.15s;
}
.soek-felt:focus { border-color: var(--blaa); }
.soek-felt::placeholder { color: var(--tekst-dempet); }

/* --- Quiz --- */
.quiz-boks { background: var(--bakgrunn2); border: 1px solid var(--border); border-radius: 12px; padding: 1.5rem; margin-top: 2.5rem; }
.quiz-boks h3 { font-size: 1.1rem; margin-bottom: 0.25rem; color: var(--tekst); }
.quiz-fremgang { font-size: 0.8rem; color: var(--tekst-dempet); margin-bottom: 1.25rem; }
.quiz-spoersmaal { font-size: 1.05rem; font-weight: 600; margin-bottom: 1rem; color: var(--tekst); }
.quiz-alternativer { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1rem; }

.quiz-alternativ {
    background: rgba(255,255,255,0.03); border: 1px solid var(--border);
    border-radius: 8px; padding: 0.65rem 1rem; cursor: pointer;
    font-size: 0.9rem; color: var(--tekst); text-align: left; width: 100%;
    transition: border-color 0.15s, background 0.15s;
}
.quiz-alternativ:hover:not(:disabled) { border-color: var(--blaa); background: rgba(59,158,255,0.06); }
.quiz-alternativ.riktig { border-color: var(--gron);    background: rgba(46,160,67,0.1);   color: var(--gron); }
.quiz-alternativ.feil   { border-color: var(--oransje); background: rgba(240,136,62,0.08); color: var(--oransje); }

.quiz-forklaring { font-size: 0.85rem; color: var(--tekst-dempet); padding: 0.5rem 0.75rem; border-left: 3px solid var(--blaa); margin-top: 0.5rem; display: none; }
.quiz-forklaring.synlig { display: block; }

.quiz-knapp {
    background: var(--blaa); color: #fff; border: none; border-radius: 8px;
    padding: 0.6rem 1.25rem; font-size: 0.9rem; font-weight: 600;
    cursor: pointer; transition: opacity 0.15s; margin-top: 0.5rem;
}
.quiz-knapp:hover    { opacity: 0.85; }
.quiz-knapp:disabled { opacity: 0.4; cursor: default; }

.quiz-resultat           { text-align: center; padding: 1rem 0; }
.quiz-resultat .poeng    { font-size: 2.5rem; font-weight: 700; color: var(--blaa); line-height: 1; }
.quiz-resultat .poeng-tekst { font-size: 0.9rem; color: var(--tekst-dempet); margin-top: 0.25rem; }

/* --- Footer --- */
.footer { margin-top: 4rem; padding: 2rem 0; border-top: 1px solid var(--border); text-align: center; font-size: 0.8rem; color: var(--tekst-dempet); }
.footer a { color: var(--tekst-dempet); }
.footer a:hover { color: var(--blaa); text-decoration: none; }
.til-toppen { display: inline-flex; align-items: center; gap: 4px; margin-top: 0.5rem; cursor: pointer; background: none; border: none; color: var(--tekst-dempet); font-size: 0.8rem; transition: color 0.15s; }
.til-toppen:hover { color: var(--blaa); }

/* --- Knapper --- */
.knapp          { display: inline-block; padding: 0.55rem 1.2rem; border-radius: 8px; font-size: 0.9rem; font-weight: 600; cursor: pointer; transition: opacity 0.15s; border: none; text-decoration: none !important; }
.knapp-blaa     { background: var(--blaa); color: #fff; }
.knapp-graa     { background: var(--bakgrunn2); color: var(--tekst); border: 1px solid var(--border); }
.knapp:hover    { opacity: 0.85; }

/* --- Broedsmuler --- */
.broedsmule { font-size: 0.8rem; color: var(--tekst-dempet); margin-bottom: 1.5rem; display: flex; align-items: center; gap: 0.35rem; flex-wrap: wrap; }
.broedsmule a { color: var(--tekst-dempet); }
.broedsmule a:hover { color: var(--blaa); text-decoration: none; }
.broedsmule .sep { opacity: 0.4; }

/* --- Responsiv --- */
@media (max-width: 640px) {
    .kort-grid { grid-template-columns: 1fr; }
    .navbar-nav { display: none; }
    h1 { font-size: 1.6rem; }
}