/* Fagkartet visual system */
:root {
  --nf-bg: #f3f7f6;
  --nf-surface: #ffffff;
  --nf-surface-soft: #eef3ef;
  --nf-surface-strong: #dfe8e1;
  --nf-text: #242826;
  --nf-muted: #63706a;
  --nf-border: #d7dfd9;
  --nf-primary: #0f766e;
  --nf-primary-dark: #0b5f59;
  --nf-primary-soft: #dcefed;
  --nf-bokmal: #2f6f9f;
  --nf-nynorsk: #3f7d54;
  --nf-sjanger: #b85542;
  --nf-virkemidler: #8a742e;
  --nf-kildebruk: #5f6f8f;
  --nf-danger: #a84b3f;
  --nf-shadow: 0 12px 32px rgba(34, 40, 36, 0.08);
  --nf-shadow-soft: 0 6px 18px rgba(34, 40, 36, 0.08);
  --nf-radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--nf-bg);
}

body {
  margin: 0;
}

#app {
  min-height: 100vh;
  color: var(--nf-text);
  background:
    linear-gradient(180deg, #f5f8f7 0%, #eef5f3 42%, #f3f7f6 100%);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  letter-spacing: 0;
}

#app.dark-mode {
  --nf-bg: #171916;
  --nf-surface: #20241f;
  --nf-surface-soft: #272d27;
  --nf-surface-strong: #323a33;
  --nf-text: #eef1eb;
  --nf-muted: #b4bdb2;
  --nf-border: #3a443c;
  --nf-primary: #6cc9bf;
  --nf-primary-dark: #9eddd6;
  --nf-primary-soft: #203c39;
  --nf-shadow: 0 16px 38px rgba(0, 0, 0, 0.28);
  --nf-shadow-soft: 0 8px 22px rgba(0, 0, 0, 0.22);
  background: #171916;
}

#app[data-theme="plum"] {
  --nf-bg: #fbf6f8;
  --nf-surface: #ffffff;
  --nf-surface-soft: #f6eaf0;
  --nf-surface-strong: #ead4de;
  --nf-text: #2d2529;
  --nf-muted: #76636b;
  --nf-border: #ead7df;
  --nf-primary: #a33f6a;
  --nf-primary-dark: #7f2f54;
  --nf-primary-soft: #f5e1ea;
  background: linear-gradient(180deg, #fdf8fa 0%, #f8eef3 42%, #fbf6f8 100%);
}

#app[data-theme="blue"] {
  --nf-bg: #f3f7fb;
  --nf-surface: #ffffff;
  --nf-surface-soft: #e8f0f8;
  --nf-surface-strong: #d5e2ee;
  --nf-text: #222831;
  --nf-muted: #5f6d7d;
  --nf-border: #d5e1eb;
  --nf-primary: #2f6f9f;
  --nf-primary-dark: #25577e;
  --nf-primary-soft: #e0edf7;
  background: linear-gradient(180deg, #f7fafd 0%, #edf4fa 42%, #f3f7fb 100%);
}

#app[data-theme="warm"] {
  --nf-bg: #f8f7ef;
  --nf-surface: #ffffff;
  --nf-surface-soft: #f1eedf;
  --nf-surface-strong: #e4dfc8;
  --nf-text: #292820;
  --nf-muted: #6f6b58;
  --nf-border: #e2ddc8;
  --nf-primary: #6f7f35;
  --nf-primary-dark: #536127;
  --nf-primary-soft: #edf0d8;
  background: linear-gradient(180deg, #fbfaf3 0%, #f1f1e3 42%, #f8f7ef 100%);
}

#app.dark-mode[data-theme="dark"] {
  background: #171916;
}

#app.dark-mode[data-theme="dark"] .site-header {
  background: rgba(23, 25, 22, 0.94);
}

#app a {
  color: var(--nf-primary-dark);
  text-decoration: none;
}

#app a:hover {
  color: var(--nf-primary);
}

#app p {
  line-height: 1.65;
}

#app h1,
#app h2,
#app h3 {
  color: var(--nf-text);
  letter-spacing: 0;
}

/* Header */
#app .site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(243, 247, 246, 0.94);
  border-bottom: 1px solid var(--nf-border);
  backdrop-filter: blur(16px);
}

#app .header-shell {
  width: min(1180px, calc(100% - 32px));
  min-height: 74px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 18px;
}

#app .site-brand {
  display: inline-flex;
  flex-direction: column;
  color: var(--nf-text);
  line-height: 1.05;
  min-width: 170px;
}

#app .site-brand:hover {
  color: var(--nf-text);
}

#app .brand-title {
  font-size: 1.28rem;
  font-weight: 760;
}

#app .brand-subtitle {
  margin-top: 5px;
  color: var(--nf-muted);
  font-size: 0.82rem;
  font-weight: 520;
}

#app .site-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
}

#app .nav-link,
#app .menu-button,
#app .cta,
#app .tool-button,
#app .content-shell > a[href="/"],
#app .content-shell > a[href^="/"][href$="/"] {
  border-radius: var(--nf-radius);
}

#app .nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 12px;
  color: var(--nf-muted);
  font-size: 0.95rem;
  font-weight: 650;
  border: 1px solid transparent;
}

#app .nav-link:hover,
#app .nav-link.is-active {
  color: var(--nf-text);
  background: var(--nf-primary-soft);
  border-color: rgba(15, 118, 110, 0.18);
}

#app .menu-button,
#app .theme-picker {
  border: 1px solid var(--nf-border);
  background: var(--nf-surface);
  color: var(--nf-text);
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 0 10px;
  border-radius: var(--nf-radius);
}

#app .menu-button {
  display: none;
}

#app .theme-picker:hover,
#app .menu-button:hover {
  background: var(--nf-surface-soft);
  border-color: var(--nf-primary);
}

#app .theme-swatch {
  width: 18px;
  height: 18px;
  padding: 0;
  border: 2px solid transparent;
  border-radius: 50%;
  cursor: pointer;
}

#app .theme-swatch.is-active {
  border-color: var(--nf-text);
}

#app .theme-swatch--default {
  background: #0f766e;
}

#app .theme-swatch--dark {
  background: #20241f;
}

#app .theme-swatch--plum {
  background: #a33f6a;
}

#app .theme-swatch--blue {
  background: #2f6f9f;
}

#app .theme-swatch--warm {
  background: #6f7f35;
}

/* Layout */
#app .site-main {
  min-height: calc(100vh - 180px);
}

#app .content-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 42px 0 62px;
}

#app.layout-activity .content-shell {
  width: min(1440px, calc(100% - 32px));
}

/* Intro and page header blocks */
#app .intro-container {
  margin-bottom: 34px;
}

#app .intro-box {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  align-items: start;
  padding: 28px;
  background: var(--nf-surface);
  border: 1px solid var(--nf-border);
  border-left: 6px solid var(--nf-primary);
  border-radius: var(--nf-radius);
  box-shadow: var(--nf-shadow-soft);
}

#app .intro-icon {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  color: var(--nf-primary-dark);
  background: var(--nf-primary-soft);
  border-radius: var(--nf-radius);
  font-size: 1.55rem;
  line-height: 1;
}

#app .intro-content h3 {
  margin: 0 0 10px;
  font-size: 1.55rem;
  line-height: 1.2;
}

#app .intro-content p {
  max-width: 760px;
  margin: 0 0 10px;
  color: var(--nf-muted);
  font-size: 1.03rem;
}

#app .intro-content p:last-child {
  margin-bottom: 0;
}

#app .om-text-block,
#app .om-content {
  max-width: 820px;
  color: var(--nf-muted);
  font-size: 1.03rem;
  line-height: 1.75;
}

/* Front page */
#app .front-hero {
  margin-bottom: 42px;
  padding: 40px;
  background: var(--nf-surface);
  border: 1px solid var(--nf-border);
  border-radius: var(--nf-radius);
  box-shadow: var(--nf-shadow-soft);
}

#app .eyebrow {
  margin: 0 0 10px;
  color: var(--nf-primary-dark);
  font-size: 0.82rem;
  font-weight: 780;
  letter-spacing: 0;
  text-transform: uppercase;
}

#app .front-hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: 3rem;
  line-height: 1.05;
  font-weight: 820;
}

#app .front-hero > p:not(.eyebrow) {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--nf-muted);
  font-size: 1.08rem;
}

#app .front-search {
  display: block;
  max-width: 760px;
  margin-top: 28px;
}

#app .front-search span {
  display: block;
  margin-bottom: 9px;
  color: var(--nf-text);
  font-size: 0.94rem;
  font-weight: 720;
}

#app .front-search input {
  width: 100%;
  min-height: 54px;
  padding: 0 16px;
  color: var(--nf-text);
  background: var(--nf-surface-soft);
  border: 1px solid var(--nf-border);
  border-radius: var(--nf-radius);
  font: inherit;
  font-size: 1rem;
  outline: none;
}

#app .front-search input:focus {
  background: var(--nf-surface);
  border-color: var(--nf-primary);
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.16);
}

#app .section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

#app .section-heading .eyebrow,
#app .section-heading h2 {
  margin: 0;
}

#app .section-heading .eyebrow {
  margin-bottom: 6px;
}

#app .fag-card {
  min-height: 220px;
  display: flex;
  flex-direction: column;
}

#app .fag-card h3 {
  margin-top: 0;
  font-size: 1.34rem;
}

#app .fag-card .card-icon {
  width: 48px;
  height: 48px;
  font-size: 1.18rem;
}

#app .card-kicker {
  display: inline-flex;
  align-self: flex-start;
  margin-bottom: 18px;
  padding: 5px 9px;
  color: var(--nf-primary-dark);
  background: var(--nf-primary-soft);
  border-radius: var(--nf-radius);
  font-size: 0.78rem;
  font-weight: 760;
}

#app .card-meta {
  display: block;
  margin-top: auto;
  padding-top: 22px;
  color: var(--nf-muted);
  font-size: 0.88rem;
  font-weight: 680;
}

#app .quick-grid {
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
}

#app .quick-card {
  min-height: 122px;
}

#app .quick-card h3 {
  margin-top: 0;
}

#app .empty-search {
  margin: 18px 0 0;
  padding: 16px;
  color: var(--nf-muted);
  background: var(--nf-surface);
  border: 1px dashed var(--nf-border);
  border-radius: var(--nf-radius);
}

/* Category pages */
#app .breadcrumbs {
  margin: 0 0 18px;
  color: var(--nf-muted);
  font-size: 0.92rem;
  font-weight: 650;
}

#app .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

#app .breadcrumbs li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

#app .breadcrumbs li:not(:last-child)::after {
  content: "/";
  color: var(--nf-border);
}

#app .breadcrumbs a {
  color: var(--nf-muted);
}

#app .breadcrumbs a:hover {
  color: var(--nf-primary-dark);
}

#app .page-hero {
  margin-bottom: 34px;
  padding: 28px;
  background: var(--nf-surface);
  border: 1px solid var(--nf-border);
  border-left: 6px solid var(--nf-primary);
  border-radius: var(--nf-radius);
  box-shadow: var(--nf-shadow-soft);
}

#app .page-hero h1 {
  margin: 0;
  font-size: 2.25rem;
  line-height: 1.08;
  font-weight: 820;
}

#app .page-hero p:not(.eyebrow) {
  max-width: 780px;
  margin: 14px 0 0;
  color: var(--nf-muted);
  font-size: 1.03rem;
}

#app .topic-card,
#app .exercise-card {
  min-height: 154px;
  display: flex;
  flex-direction: column;
}

#app .topic-card .card-kicker,
#app .exercise-card .card-kicker {
  margin-bottom: 14px;
}

#app .topic-card h3,
#app .exercise-card h3 {
  margin-top: 0;
}

#app .exercise-card::before {
  background: var(--nf-primary);
}

#app .exercise-card .muted {
  margin-top: auto;
  padding-top: 18px;
  font-weight: 650;
}

#app .exercise-card .muted + .exercise-meta {
  margin-top: 12px;
  padding-top: 0;
}

#app .exercise-meta,
#app .activity-meta {
  color: var(--nf-primary-dark) !important;
  font-size: 0.88rem !important;
  font-weight: 740 !important;
}

/* Sections */
#app .category-section {
  margin: 0 0 42px;
}

#app .category-section:last-child {
  margin-bottom: 0;
}

#app .category-section h2,
#app h2 {
  margin: 0 0 18px;
  font-size: 1.48rem;
  line-height: 1.25;
  font-weight: 760;
}

#app h2 .emoji {
  margin-right: 8px;
  font-size: 1.2em;
  vertical-align: -0.05em;
}

#app .grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(236px, 1fr));
  gap: 16px;
}

#app .main-categories {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Cards */
#app .card {
  position: relative;
  display: block;
  min-height: 150px;
  padding: 20px;
  color: var(--nf-text);
  background: var(--nf-surface);
  border: 1px solid var(--nf-border);
  border-radius: var(--nf-radius);
  box-shadow: none;
  overflow: hidden;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease,
    background-color 160ms ease;
}

#app .card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: var(--nf-primary);
}

#app .card:hover {
  color: var(--nf-text);
  transform: translateY(-3px);
  border-color: rgba(15, 118, 110, 0.42);
  box-shadow: var(--nf-shadow);
}

#app .card h3 {
  margin: 4px 0 9px;
  font-size: 1.08rem;
  line-height: 1.25;
  font-weight: 760;
}

#app .card-icon {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 14px;
  color: var(--nf-primary-dark);
  background: var(--nf-primary-soft);
  border: 1px solid rgba(15, 118, 110, 0.18);
  border-radius: var(--nf-radius);
  font-size: 1.05rem;
  font-weight: 820;
  line-height: 1;
}

#app .card .emoji {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 10px;
  border-radius: var(--nf-radius);
  background: var(--nf-surface-soft);
  font-size: 1.35rem;
  line-height: 1;
}

#app .muted,
#app .card .muted {
  margin: 0;
  color: var(--nf-muted);
  font-size: 0.94rem;
  line-height: 1.5;
}

#app .card.cat-bokmal::before {
  background: var(--nf-bokmal);
}

#app .card.cat-nynorsk::before {
  background: var(--nf-nynorsk);
}

#app .card.cat-sjangerlaere::before {
  background: var(--nf-sjanger);
}

#app .card.cat-virkemidler::before {
  background: var(--nf-virkemidler);
}

#app .card.cat-kildebruk::before {
  background: var(--nf-kildebruk);
}

#app .card.cat-verb::before,
#app .card.cat-ordklasser::before {
  background: var(--nf-bokmal);
}

#app .card.cat-substantiv::before {
  background: var(--nf-nynorsk);
}

#app .card.cat-adjektiv::before,
#app .card.cat-diverse::before {
  background: var(--nf-kildebruk);
}

#app .card.cat-adverb::before,
#app .card.cat-tekstbygger::before {
  background: var(--nf-virkemidler);
}

#app .card.cat-tegnsetting::before,
#app .card.cat-setningsbyggere::before {
  background: var(--nf-sjanger);
}

/* Buttons and links */
#app .cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  color: #ffffff;
  background: var(--nf-primary-dark);
  border: 1px solid var(--nf-primary-dark);
  font-weight: 720;
}

#app .cta:hover {
  color: #ffffff;
  background: var(--nf-primary);
}

#app .content-shell > a[href="/"],
#app .content-shell > a[href^="/"][href$="/"] {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  margin: 0 0 22px;
  padding: 0 13px;
  color: var(--nf-text);
  background: var(--nf-surface);
  border: 1px solid var(--nf-border);
  font-weight: 680;
}

#app .content-shell > a[href="/"]:hover,
#app .content-shell > a[href^="/"][href$="/"]:hover {
  background: var(--nf-primary-soft);
  border-color: var(--nf-primary);
}

/* Activity frame */
#app .activity-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: end;
  margin-bottom: 22px;
  padding: 28px;
  background: var(--nf-surface);
  border: 1px solid var(--nf-border);
  border-left: 6px solid var(--nf-primary);
  border-radius: var(--nf-radius);
  box-shadow: var(--nf-shadow-soft);
}

#app .activity-hero h1 {
  margin: 0;
  font-size: 2.25rem;
  line-height: 1.08;
  font-weight: 820;
}

#app .activity-hero p:not(.eyebrow) {
  max-width: 780px;
  margin: 14px 0 0;
  color: var(--nf-muted);
  font-size: 1.03rem;
}

#app .activity-hero .activity-meta {
  margin-top: 10px;
}

#app .activity-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

#app .tool-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  color: var(--nf-text);
  background: var(--nf-surface);
  border: 1px solid var(--nf-border);
  border-radius: var(--nf-radius);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 680;
  cursor: pointer;
  white-space: nowrap;
}

#app .tool-button:hover {
  color: var(--nf-text);
  background: var(--nf-primary-soft);
  border-color: var(--nf-primary);
}

#app #game-wrapper {
  background: var(--nf-surface);
  border: 1px solid var(--nf-border);
  border-radius: var(--nf-radius);
  padding: 24px;
  overflow: hidden;
  box-shadow: var(--nf-shadow-soft);
}

#app #game-wrapper:fullscreen {
  width: 100vw;
  height: 100vh;
  padding: 24px;
  overflow: auto;
  background: var(--nf-surface);
}

#app #game-root {
  width: 100%;
  isolation: isolate;
}

#app #game-root > h1:first-child,
#app #game-root > h2:first-child,
#app #game-root > .game-title:first-child,
#app #game-root > .title:first-child,
#app #game-root > .topbar:first-child h1 {
  display: none;
}

#app #game-root main h1,
#app #game-root main h2,
#app #game-root article h1,
#app #game-root article h2 {
  display: revert;
}

/* Footer */
#app .site-footer {
  border-top: 1px solid var(--nf-border);
  background: var(--nf-surface);
}

#app .footer-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  color: var(--nf-muted);
}

#app .footer-shell p,
#app .footer-shell small {
  margin: 0;
}

/* Legacy page helpers */
#app .personal-card {
  border-radius: var(--nf-radius) !important;
  background: var(--nf-surface) !important;
}

#app .personal-card:hover {
  transform: translateY(-3px);
}

@media (max-width: 860px) {
  #app .header-shell {
    grid-template-columns: 1fr auto auto;
    min-height: auto;
    padding: 14px 0;
  }

  #app .menu-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  #app .site-nav {
    display: none;
    grid-column: 1 / -1;
    justify-content: start;
    flex-wrap: wrap;
    padding-top: 12px;
  }

  #app .site-nav.is-open {
    display: flex;
  }

  #app .nav-link {
    background: var(--nf-surface);
    border-color: var(--nf-border);
  }

  #app .brand-subtitle {
    display: none;
  }

  #app .content-shell {
    padding-top: 28px;
  }
}

@media (max-width: 680px) {
  #app .header-shell,
  #app .content-shell,
  #app .footer-shell {
    width: min(100% - 24px, 1180px);
  }

  #app .brand-title {
    font-size: 1.1rem;
  }

  #app .intro-box {
    grid-template-columns: 1fr;
    padding: 20px;
  }

  #app .intro-icon {
    width: 42px;
    height: 42px;
    font-size: 1.35rem;
  }

  #app .intro-content h3 {
    font-size: 1.32rem;
  }

  #app .front-hero {
    padding: 24px;
  }

  #app .front-hero h1 {
    font-size: 2.05rem;
  }

  #app .section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  #app .page-hero {
    padding: 22px;
  }

  #app .page-hero h1 {
    font-size: 1.82rem;
  }

  #app .activity-hero {
    grid-template-columns: 1fr;
    align-items: start;
    padding: 22px;
  }

  #app .activity-hero h1 {
    font-size: 1.82rem;
  }

  #app .activity-actions {
    justify-content: flex-start;
  }

  #app .grid,
  #app .main-categories {
    grid-template-columns: 1fr;
  }

  #app .card {
    min-height: 0;
  }

  #app #game-wrapper {
    padding: 12px;
  }

  #app .footer-shell {
    align-items: flex-start;
    flex-direction: column;
  }

  #app .personal-card {
    flex-direction: column !important;
    text-align: center !important;
  }
}