/* Båtprøve. The look of a Norwegian sea chart: paper, deep navy ink, thin depth-contour lines, magenta for what
   matters (the colour of lights in the chart). See BRAND.md. */
@font-face { font-family: "Barlow SC"; src: url("/fonts/barlow-semi-condensed-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Barlow SC"; src: url("/fonts/barlow-semi-condensed-latin-700-normal.woff2") format("woff2"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Source Serif"; src: url("/fonts/source-serif-4-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Source Serif"; src: url("/fonts/source-serif-4-latin-400-italic.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: "Source Serif"; src: url("/fonts/source-serif-4-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-display: swap; }

:root {
  --papir: #F7F4EC; --grunt: #DDEBF2; --blekk: #12233F; --dempet: #4C5A6E; --linje: #C3CFDA;
  --magenta: #A3195B; --babord: #C42B2B; --styrbord: #1B7A47; --gul: #F2C230; --hvit: #fff;
  --display: "Barlow SC", "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --tekst: "Source Serif", Georgia, "Times New Roman", serif;
  --r: 2px;
  --wrap: 1240px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; animation: none !important; } }
body { margin: 0; font-family: var(--tekst); font-size: clamp(17px, 0.3vw + 16px, 19px); line-height: 1.6; color: var(--blekk); background: var(--papir); }
::selection { background: var(--magenta); color: #fff; }
a { color: var(--magenta); text-underline-offset: 3px; text-decoration-thickness: 1px; transition: color .15s; }
a:hover { color: var(--blekk); }
:focus-visible { outline: 3px solid var(--magenta); outline-offset: 2px; }
h1, h2, h3, .eyebrow, .btn, .wordmark, .big, .quiz-score, .price { font-family: var(--display); }
h1, h2, h3 { line-height: 1.08; letter-spacing: -0.01em; margin: 0 0 .5em; font-weight: 700; }
h1 { font-size: clamp(2.3rem, 4.6vw + .6rem, 4.6rem); }
h2 { font-size: clamp(1.6rem, 1.6vw + 1rem, 2.4rem); }
h3 { font-size: 1.35rem; }
p, li { hyphens: auto; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 clamp(1.1rem, 3vw, 2.5rem); }
.muted { color: var(--dempet); } .small { font-size: .88rem; }
.eyebrow { text-transform: uppercase; letter-spacing: .14em; font-weight: 600; font-size: .85rem; color: var(--magenta); margin: 0 0 .8rem; }
.lead { font-size: clamp(1.1rem, .5vw + 1rem, 1.3rem); max-width: 38em; }
.lead-small { color: var(--dempet); }
.skip { position: absolute; left: -9999px; } .skip:focus { left: 1rem; top: 1rem; background: #fff; padding: .5rem 1rem; z-index: 10; }

/* Wordmark: «båtprøve» with the north-cardinal topmark as the ring of the å. */
.wordmark { font-weight: 700; font-size: 1.65rem; letter-spacing: -.01em; color: var(--blekk); line-height: 1; white-space: nowrap; }
.wm-a { position: relative; display: inline-block; }
.wm-cones { position: absolute; left: 50%; transform: translateX(-50%); top: -.5em; width: .36em; height: .48em; color: var(--blekk); }
.logo { text-decoration: none; display: inline-block; padding-top: .3em; }

/* Header and footer */
.site-header { border-bottom: 1px solid var(--linje); background: var(--papir); position: sticky; top: 0; z-index: 5; }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 64px; }
.main-nav { display: flex; align-items: center; gap: clamp(.8rem, 2vw, 1.8rem); font-family: var(--display); font-weight: 600; font-size: 1.05rem; }
.main-nav a:not(.btn) { color: var(--blekk); text-decoration: none; border-bottom: 2px solid transparent; padding: .2rem 0; }
.main-nav a:not(.btn):hover, .main-nav a[aria-current] { border-color: var(--magenta); }
@media (max-width: 720px) { .main-nav a:not(.btn) { display: none; } }
.banner { background: #FFF3C9; border-bottom: 1px solid #E8D48C; padding: .5rem 1rem; font-size: .9rem; text-align: center; }
.site-footer { margin-top: 5rem; border-top: 1px solid var(--linje); padding: 3rem 0 2.5rem; font-size: .95rem; background: var(--papir); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.3fr; gap: 2rem; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-h { font-family: var(--display); font-weight: 700; text-transform: uppercase; letter-spacing: .1em; font-size: .85rem; margin-bottom: .4rem; }
.footer-mark .wordmark { font-size: 1.4rem; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; background: var(--blekk); color: #fff; border: 2px solid var(--blekk); border-radius: var(--r); padding: .55rem 1.4rem; font-size: 1.12rem; font-weight: 700; letter-spacing: .01em; cursor: pointer; text-decoration: none; transition: background .15s, color .15s, transform .15s; }
.btn:hover { background: var(--magenta); border-color: var(--magenta); color: #fff; }
.btn:active { transform: translateY(1px); }
.btn-small { min-height: 40px; padding: .3rem 1rem; font-size: 1rem; }
.btn-big { min-height: 56px; font-size: 1.25rem; padding: .7rem 2rem; }
.btn-quiet { background: transparent; color: var(--blekk); }
.btn-quiet:hover { background: var(--blekk); color: #fff; border-color: var(--blekk); }
.btn[disabled] { opacity: .6; cursor: wait; }
.link-quiet { font-family: var(--display); font-weight: 600; font-size: 1.1rem; margin-left: 1rem; color: var(--blekk); }
.error { color: var(--babord); font-weight: 600; }

/* Hero: the promise on the left, a real question on the right. */
.hero { padding: clamp(2rem, 5vw, 4.5rem) 0 clamp(2.5rem, 5vw, 4rem); background:
  radial-gradient(circle at 85% 30%, transparent 0 120px, rgba(195,207,218,.45) 121px 122px, transparent 123px 190px, rgba(195,207,218,.35) 191px 192px, transparent 193px 270px, rgba(195,207,218,.25) 271px 272px, transparent 273px); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); grid-template-areas: "copy quiz" "more quiz"; column-gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.hero-copy { grid-area: copy; } .hero-more { grid-area: more; } .hero-quiz { grid-area: quiz; }
@media (max-width: 960px) { .hero-grid { grid-template-columns: 1fr; grid-template-areas: "copy" "quiz" "more"; } .hero-quiz { margin: .5rem 0 1rem; } }
.hero-actions { margin: 1.6rem 0; }
.hero-facts { list-style: none; padding: 1.2rem 0 0; margin: 1.5rem 0 0; display: flex; flex-wrap: wrap; gap: 1rem 2.2rem; border-top: 1px solid var(--linje); }
.hero-facts li { font-size: .95rem; color: var(--dempet); }
.hero-facts strong { display: block; font-family: var(--display); font-size: 1.9rem; color: var(--blekk); line-height: 1.1; }

/* Quiz cards */
.quiz { position: relative; }
.quiz-progress { height: 4px; background: var(--linje); margin-bottom: .8rem; }
.quiz-progress span { display: block; height: 100%; width: 0; background: var(--magenta); transition: width .25s; }
.q-card { container-type: inline-size; background: #fff; border: 1px solid var(--linje); border-radius: var(--r); padding: clamp(1rem, 2.5vw, 1.6rem); box-shadow: 6px 6px 0 var(--grunt); }
.q-head { display: flex; justify-content: space-between; gap: 1rem; font-family: var(--display); font-weight: 600; font-size: .9rem; text-transform: uppercase; letter-spacing: .08em; color: var(--dempet); margin-bottom: .8rem; }
.q-emne { color: var(--magenta); text-align: right; }
.q-body.has-fig { display: grid; grid-template-columns: 1fr; gap: 1rem; }
.q-fig { margin: 0; justify-self: center; }
.q-fig svg { display: block; max-width: 100%; height: auto; max-height: 200px; width: auto; }
@container (min-width: 640px) { .q-body.has-fig { grid-template-columns: auto minmax(0, 1fr); gap: 1.5rem; align-items: start; } .q-fig svg { max-height: 260px; } }
.q-text { font-family: var(--tekst); font-weight: 600; font-size: 1.2rem; line-height: 1.4; letter-spacing: 0; margin: 0 0 1rem; }
.q-options { list-style: none; padding: 0; margin: 0; display: grid; gap: .55rem; }
.q-opt { width: 100%; display: flex; gap: .8rem; align-items: center; text-align: left; font: inherit; font-size: 1.02rem; line-height: 1.35; color: var(--blekk); background: var(--papir); border: 1.5px solid var(--linje); border-radius: var(--r); padding: .7rem .9rem; min-height: 52px; cursor: pointer; transition: border-color .15s, background .15s; }
.q-opt:hover:not([disabled]) { border-color: var(--blekk); background: #fff; }
.q-letter { flex: none; width: 2rem; height: 2rem; display: grid; place-items: center; font-family: var(--display); font-weight: 700; border: 1.5px solid currentColor; border-radius: 50%; }
.q-opt.is-picked { border-color: var(--blekk); background: var(--grunt); }
.q-opt.is-picked .q-letter { background: var(--blekk); color: #fff; border-color: var(--blekk); }
.q-opt.is-right { border-color: var(--styrbord); background: #E7F3EC; }
.q-opt.is-right .q-letter { background: var(--styrbord); border-color: var(--styrbord); color: #fff; }
.q-opt.is-wrong { border-color: var(--babord); background: #FBE9E7; }
.q-opt.is-wrong .q-letter { background: var(--babord); border-color: var(--babord); color: #fff; }
.q-opt[disabled] { cursor: default; }
.q-feedback { margin-top: 1.1rem; padding-top: 1rem; border-top: 1px dashed var(--linje); }
.q-verdict { font-family: var(--display); font-weight: 700; font-size: 1.25rem; margin: 0 0 .3rem; }
.q-verdict.ok { color: var(--styrbord); } .q-verdict.no { color: var(--babord); }
.q-explain { margin: 0 0 .6rem; }
.q-source { font-size: .92rem; margin: 0 0 .8rem; }
.q-source span { font-family: var(--display); font-weight: 700; text-transform: uppercase; letter-spacing: .1em; font-size: .78rem; color: var(--dempet); margin-right: .4rem; }
.q-report { font-size: .88rem; margin-bottom: 1rem; color: var(--dempet); }
.q-report summary { cursor: pointer; display: inline; text-decoration: underline; text-underline-offset: 3px; }
.q-report form { margin-top: .6rem; display: grid; gap: .5rem; max-width: 30rem; }
.q-report textarea { width: 100%; font: inherit; padding: .5rem; border: 1px solid var(--linje); border-radius: var(--r); }
.q-report .btn { justify-self: start; min-height: 40px; font-size: 1rem; }
.quiz-done { background: #fff; border: 1px solid var(--linje); border-radius: var(--r); padding: 1.6rem; box-shadow: 6px 6px 0 var(--grunt); }
.quiz-score { font-weight: 700; font-size: 1.5rem; margin: 0 0 .4rem; }
.quiz-score span { font-size: 3.6rem; line-height: 1; color: var(--magenta); margin-right: .2rem; }
.quiz-cta { border-top: 1px solid var(--linje); margin-top: 1rem; padding-top: 1rem; }

/* Bands */
.band { padding: clamp(2.5rem, 6vw, 4.5rem) 0; margin: 2rem 0; }
.band-sea { background: var(--grunt); border-top: 1px solid var(--linje); border-bottom: 1px solid var(--linje); }
.band-paper { background: #fff; border-top: 1px solid var(--linje); border-bottom: 1px solid var(--linje); }
.band-title { margin-bottom: 1.5rem; }
.numbers { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
@media (max-width: 900px) { .numbers { grid-template-columns: repeat(2, 1fr); row-gap: 2rem; } }
.number { padding: 0 1.4rem; border-left: 1px solid var(--blekk); }
.number .big { display: block; font-size: clamp(3.2rem, 5vw, 5rem); font-weight: 700; line-height: .95; }
.number .unit { font-family: var(--display); font-weight: 600; text-transform: uppercase; letter-spacing: .12em; font-size: .85rem; color: var(--magenta); }
.number p { margin: .5rem 0 .3rem; font-size: .98rem; }
.number a { font-size: .85rem; color: var(--dempet); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 5rem); margin: clamp(2.5rem, 6vw, 4.5rem) auto; align-items: start; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }
.split p, .split li { max-width: 36em; }
.checks { list-style: none; padding: 0; margin: 0 0 1.4rem; }
.checks li { padding: .55rem 0 .55rem 2rem; position: relative; border-bottom: 1px solid var(--linje); }
.checks li::before { content: ""; position: absolute; left: 0; top: 1rem; width: 14px; height: 14px; background: var(--magenta); clip-path: polygon(0 100%, 50% 0, 100% 100%); }
.result-sample { margin: 0; background: #fff; border: 1px solid var(--linje); padding: 1.6rem; box-shadow: 10px 10px 0 var(--grunt); }
.result-sample figcaption { font-family: var(--display); text-transform: uppercase; letter-spacing: .12em; font-size: .8rem; color: var(--dempet); margin-bottom: .8rem; }
.exam-verdict { font-family: var(--display); font-size: 2.2rem; font-weight: 700; margin: 0; }
.exam-verdict.ok { color: var(--styrbord); } .exam-verdict.no { color: var(--babord); }
.emne-list { list-style: none; padding: 0; margin: 1rem 0; display: grid; gap: .7rem; }
.emne-list li { display: grid; grid-template-columns: minmax(0, 1.4fr) 1fr auto; gap: .8rem; align-items: center; font-size: .95rem; }
@media (max-width: 480px) { .emne-list li { grid-template-columns: 1fr auto; } .emne-bar { grid-column: 1 / -1; grid-row: 2; } }
.emne-bar { height: 10px; background: var(--grunt); position: relative; }
.emne-bar span { position: absolute; inset: 0 auto 0 0; background: var(--blekk); }
.emne-num { font-family: var(--display); font-weight: 700; }

.topic-links { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-top: 1.5rem; }
@media (max-width: 900px) { .topic-links { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .topic-links { grid-template-columns: 1fr; } }
.topic-link { display: flex; gap: 1rem; align-items: center; padding: 1rem; border: 1px solid var(--linje); background: var(--papir); color: var(--blekk); text-decoration: none; border-radius: var(--r); transition: border-color .15s, transform .15s; }
.topic-link:hover { border-color: var(--magenta); color: var(--blekk); transform: translateY(-2px); }
.topic-link strong { display: block; font-family: var(--display); font-size: 1.25rem; line-height: 1.1; }
.topic-link small { color: var(--dempet); font-size: .85rem; }
.topic-fig svg { width: 56px; height: 72px; display: block; }
.split-text p { max-width: 34em; }
.faq { max-width: 860px; margin-top: 4rem; }
.faq details { border-top: 1px solid var(--linje); padding: 1rem 0; }
.faq details:last-child { border-bottom: 1px solid var(--linje); }
.faq summary { font-family: var(--display); font-weight: 700; font-size: 1.25rem; cursor: pointer; list-style: none; position: relative; padding-right: 2rem; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 0; color: var(--magenta); }
.faq details[open] summary::after { content: "–"; }
.faq p { max-width: 42em; }

/* Topic pages: a textbook margin with the source beside the text. */
.topic-hero { padding: clamp(2rem, 5vw, 4rem) 0 1rem; }
.topic-hero h1 { max-width: 16em; }
.guide { margin-top: 1rem; }
.guide-block { display: grid; grid-template-columns: minmax(0, 42rem) minmax(0, 16rem); gap: 2.5rem; margin: 2.5rem 0; align-items: start; }
@media (max-width: 860px) { .guide-block { grid-template-columns: 1fr; gap: .5rem; } }
.margin-note { border-left: 2px solid var(--magenta); padding: .2rem 0 .2rem .9rem; font-size: .9rem; margin-top: 3.2rem; }
@media (max-width: 860px) { .margin-note { margin-top: 0; } }
.margin-note span { display: block; font-family: var(--display); font-weight: 700; text-transform: uppercase; letter-spacing: .1em; font-size: .75rem; color: var(--dempet); }
.fig-row { display: grid; gap: 1.2rem; margin: 2rem 0; }
.fig-row-4 { grid-template-columns: repeat(4, 1fr); } .fig-row-3 { grid-template-columns: repeat(3, 1fr); } .fig-row-2 { grid-template-columns: repeat(2, minmax(0, 18rem)); }
@media (max-width: 760px) { .fig-row-4, .fig-row-3 { grid-template-columns: repeat(2, 1fr); } .fig-row-2 { grid-template-columns: repeat(2, 1fr); } }
.guide-fig { margin: 0; background: #fff; border: 1px solid var(--linje); padding: 1rem; text-align: center; }
.guide-fig svg { max-width: 100%; height: auto; max-height: 220px; width: auto; }
.guide-fig figcaption { font-size: .9rem; text-align: left; margin-top: .6rem; }
.guide-fig figcaption strong { display: block; font-family: var(--display); font-size: 1.1rem; }
table.facts { border-collapse: collapse; width: 100%; font-size: .95rem; margin: 1rem 0; }
table.facts th, table.facts td { text-align: left; padding: .55rem .6rem; border-bottom: 1px solid var(--linje); vertical-align: top; }
table.facts th { font-family: var(--display); text-transform: uppercase; letter-spacing: .08em; font-size: .8rem; color: var(--dempet); }
.test-wrap { display: grid; grid-template-columns: minmax(0, 20rem) minmax(0, 1fr); gap: clamp(1.5rem, 4vw, 4rem); align-items: start; }
@media (max-width: 860px) { .test-wrap { grid-template-columns: 1fr; } }
.cta-strip { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1rem; border: 1px solid var(--blekk); padding: 1.4rem 1.6rem; margin-top: 3rem; max-width: calc(var(--wrap) - 5rem); }
.cta-strip p { margin: 0; }

/* Exam */
.exam-page { margin-top: 2.5rem; }
.prove-facts { list-style: none; padding: 0; margin: 1.5rem 0 2rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
@media (max-width: 760px) { .prove-facts { grid-template-columns: 1fr; } }
.prove-facts li { border-left: 1px solid var(--blekk); padding-left: 1rem; }
.prove-facts strong { display: block; font-family: var(--display); font-size: 3rem; line-height: 1; }
.exam-start { margin: 1rem 0; }
.exam-top { position: sticky; top: 64px; z-index: 4; display: flex; flex-wrap: wrap; gap: .6rem 1.6rem; align-items: center; justify-content: space-between; background: var(--blekk); color: #fff; padding: .6rem 1rem; margin-bottom: 1rem; font-family: var(--display); }
.exam-top strong { font-size: 1.5rem; font-variant-numeric: tabular-nums; }
.exam-top.hurry .exam-clock strong { color: var(--gul); }
.exam-top .btn { color: #fff; border-color: #fff; min-height: 40px; }
.exam-top .btn:hover { background: #fff; color: var(--blekk); }
.exam-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(2.6rem, 1fr)); gap: .35rem; margin-bottom: 1.2rem; }
.exam-grid button { font-family: var(--display); font-weight: 600; font-size: 1rem; min-height: 2.6rem; background: #fff; border: 1px solid var(--linje); color: var(--blekk); cursor: pointer; border-radius: var(--r); }
.exam-grid button.done { background: var(--grunt); border-color: var(--blekk); }
.exam-grid button.here { outline: 2px solid var(--magenta); outline-offset: 1px; }
.exam-nav { display: flex; justify-content: space-between; margin: 1.2rem 0; }
.exam-result { margin-top: 1rem; }
.review { display: grid; gap: 1.4rem; margin-top: 1rem; }

/* Buy and access */
.buy-page { margin-top: clamp(2rem, 5vw, 4rem); }
.buy-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 5rem); align-items: start; }
@media (max-width: 860px) { .buy-grid { grid-template-columns: 1fr; } }
.buy-box { background: #fff; border: 1.5px solid var(--blekk); padding: clamp(1.3rem, 3vw, 2rem); box-shadow: 10px 10px 0 var(--grunt); }
.price { font-weight: 700; font-size: 1.6rem; margin: 0; }
.price span { font-size: 4.5rem; line-height: 1; }
.consent { display: flex; gap: .8rem; align-items: flex-start; margin: 1.2rem 0; font-size: 1rem; cursor: pointer; }
.consent input { width: 22px; height: 22px; margin-top: .2rem; flex: none; accent-color: var(--magenta); }
.buy-box form .btn { width: 100%; }
.buy-notes { padding-left: 1.1rem; font-size: .92rem; color: var(--dempet); margin: 1.2rem 0 0; }
.access { margin-top: clamp(2rem, 5vw, 4rem); }
.access.narrow { max-width: 680px; }
.access-link code { font-size: .95rem; background: #fff; border: 1px solid var(--linje); padding: .4rem .6rem; display: inline-block; word-break: break-all; }
.access-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 1.2rem; margin: 2rem 0; }
@media (max-width: 760px) { .access-grid { grid-template-columns: 1fr; } }
.access-card { background: #fff; border: 1px solid var(--linje); padding: 1.4rem; text-decoration: none; color: var(--blekk); }
.access-card strong { display: block; font-family: var(--display); font-size: 1.5rem; margin-bottom: .3rem; }
.access-main { background: var(--blekk); color: #fff; border-color: var(--blekk); transition: background .15s; }
.access-main:hover { background: var(--magenta); color: #fff; }
.tema-list { columns: 2; padding-left: 1.1rem; margin: .5rem 0 0; }
@media (max-width: 480px) { .tema-list { columns: 1; } }
.stack { display: grid; gap: .8rem; max-width: 26rem; }
.stack input { display: block; width: 100%; font: inherit; padding: .7rem; min-height: 48px; border: 1.5px solid var(--linje); border-radius: var(--r); margin-top: .3rem; background: #fff; }
.notfound svg { width: 90px; height: auto; }

/* Legal */
.legal { max-width: 760px; margin-top: 2.5rem; }
.legal h2 { font-size: 1.4rem; margin-top: 2rem; }