/* systemutvikling.org — rent, rammeverk-fritt stilark.
   Ingen CDN, ingen webfont-nedlasting. Systemfonter for maksimal ytelse. */

:root {
    --bg: #ffffff;
    --bg-soft: #f5f7fa;
    --bg-card: #ffffff;
    --text: #1a2230;
    --text-soft: #4a5568;
    --border: #e2e8f0;
    --brand: #1857c4;
    --brand-dark: #0f3d8f;
    --brand-soft: #e8f0fe;
    --accent: #0ea5a4;
    --maxw: 720px;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(16, 24, 40, .06), 0 1px 2px rgba(16, 24, 40, .04);
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f141c;
        --bg-soft: #151c27;
        --bg-card: #161e2b;
        --text: #e6ebf2;
        --text-soft: #9aa7b8;
        --border: #26303f;
        --brand: #5b9bff;
        --brand-dark: #8ab7ff;
        --brand-soft: #16233c;
        --accent: #2dd4bf;
    }
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 18px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

/* ---- Layout ---- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.wide { max-width: 1080px; }

/* ---- Navigasjon ---- */
.site-nav {
    position: sticky; top: 0; z-index: 50;
    background: color-mix(in srgb, var(--bg) 88%, transparent);
    backdrop-filter: saturate(150%) blur(8px);
    border-bottom: 1px solid var(--border);
}
.site-nav .container {
    max-width: 1080px;
    display: flex; align-items: center; gap: 20px;
    height: 62px;
}
.brand { font-weight: 700; font-size: 18px; color: var(--text); text-decoration: none; letter-spacing: -.01em; }
.brand span { color: var(--brand); }
.nav-links { margin-left: auto; display: flex; gap: 22px; align-items: center; }
.nav-links a { color: var(--text-soft); text-decoration: none; font-size: 15px; font-weight: 500; }
.nav-links a:hover { color: var(--brand); }
.nav-cta {
    background: var(--brand); color: #fff !important;
    padding: 8px 16px; border-radius: 8px; font-weight: 600;
}
.nav-cta:hover { background: var(--brand-dark); }
@media (max-width: 640px) {
    .nav-links a:not(.nav-cta) { display: none; }
}

/* ---- Hero ---- */
.hero { background: var(--bg-soft); border-bottom: 1px solid var(--border); padding: 72px 0 64px; }
.hero h1 { font-size: clamp(2rem, 5vw, 3rem); line-height: 1.12; margin: 0 0 18px; letter-spacing: -.02em; }
.hero p { font-size: 1.2rem; color: var(--text-soft); margin: 0 0 28px; max-width: 640px; }
.eyebrow { display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--brand); margin-bottom: 14px; }

/* ---- Knapper ---- */
.btn {
    display: inline-block; background: var(--brand); color: #fff; text-decoration: none;
    padding: 13px 26px; border-radius: 10px; font-weight: 600; font-size: 1rem;
    transition: background .15s ease;
}
.btn:hover { background: var(--brand-dark); }
.btn-ghost { background: transparent; color: var(--brand); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--brand-soft); }

/* ---- Innhold / artikkel ---- */
article, .prose { padding: 56px 0; }
.prose h2 { font-size: 1.6rem; margin: 2.4em 0 .6em; letter-spacing: -.01em; line-height: 1.25; }
.prose h3 { font-size: 1.25rem; margin: 1.8em 0 .5em; }
.prose p { margin: 0 0 1.1em; }
.prose ul, .prose ol { margin: 0 0 1.2em; padding-left: 1.3em; }
.prose li { margin: .4em 0; }
.prose a { color: var(--brand); text-decoration: underline; text-underline-offset: 2px; text-decoration-thickness: 1px; }
.prose a:hover { color: var(--brand-dark); }
.lead { font-size: 1.2rem; color: var(--text-soft); }

.breadcrumb { font-size: .9rem; color: var(--text-soft); padding: 22px 0 0; }
.breadcrumb a { color: var(--text-soft); text-decoration: none; }
.breadcrumb a:hover { color: var(--brand); text-decoration: underline; }

.article-header { padding: 20px 0 8px; }
.article-header h1 { font-size: clamp(1.9rem, 4.5vw, 2.6rem); line-height: 1.15; letter-spacing: -.02em; margin: .3em 0 .3em; }
.article-meta { color: var(--text-soft); font-size: .92rem; }

/* Innholdsfortegnelse */
.toc { background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 24px; margin: 8px 0 32px; }
.toc strong { display: block; font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-soft); margin-bottom: 10px; }
.toc ul { list-style: none; margin: 0; padding: 0; }
.toc li { margin: .35em 0; }
.toc a { color: var(--brand); text-decoration: none; }
.toc a:hover { text-decoration: underline; }

/* Callout / CTA-boks til dops.no */
.callout {
    background: var(--brand-soft); border: 1px solid color-mix(in srgb, var(--brand) 25%, var(--border));
    border-radius: var(--radius); padding: 24px 26px; margin: 32px 0;
}
.callout p { margin: 0 0 14px; }
.callout .btn { padding: 11px 22px; }

/* ---- Kort-grid (hub) ---- */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; margin: 8px 0; }
.card {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 24px; text-decoration: none; color: inherit; box-shadow: var(--shadow);
    transition: transform .15s ease, border-color .15s ease;
    display: block;
}
.card:hover { transform: translateY(-2px); border-color: var(--brand); }
.card .icon { width: 40px; height: 40px; color: var(--brand); margin-bottom: 14px; }
.card h3 { margin: 0 0 8px; font-size: 1.15rem; }
.card p { margin: 0; color: var(--text-soft); font-size: .96rem; }

.section-soft { background: var(--bg-soft); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section { padding: 64px 0; }
.section h2 { font-size: 1.9rem; letter-spacing: -.01em; margin: 0 0 8px; }
.section .sub { color: var(--text-soft); margin: 0 0 32px; font-size: 1.1rem; }

/* FAQ */
.faq { margin: 24px 0; }
.faq details { border: 1px solid var(--border); border-radius: 10px; padding: 4px 20px; margin-bottom: 12px; background: var(--bg-card); }
.faq summary { cursor: pointer; font-weight: 600; padding: 14px 0; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--brand); font-weight: 700; }
.faq details[open] summary::after { content: "\2013"; }
.faq details > p { margin: 0 0 16px; color: var(--text-soft); }

/* ---- Footer ---- */
.site-footer { background: var(--bg-soft); border-top: 1px solid var(--border); padding: 48px 0 40px; margin-top: 24px; }
.site-footer .container { max-width: 1080px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; margin-bottom: 32px; }
@media (max-width: 640px) { .footer-grid { grid-template-columns: 1fr; gap: 24px; } }
.site-footer h4 { font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-soft); margin: 0 0 12px; }
.site-footer a { color: var(--text-soft); text-decoration: none; display: block; margin: 6px 0; font-size: .95rem; }
.site-footer a:hover { color: var(--brand); }
.site-footer .about { color: var(--text-soft); font-size: .95rem; max-width: 320px; }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 20px; color: var(--text-soft); font-size: .85rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

/* Tabell */
.prose table { width: 100%; border-collapse: collapse; margin: 1.4em 0; font-size: .96rem; }
.prose th, .prose td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--border); }
.prose th { font-weight: 600; background: var(--bg-soft); }

:focus-visible { outline: 3px solid var(--brand); outline-offset: 2px; border-radius: 4px; }
img { max-width: 100%; height: auto; }