:root {
  --navy: #0f2a4a;
  --navy-soft: #1d3d63;
  --teal: #0a8aa0;
  --teal-dark: #07707f;
  --teal-tint: #e3f4f8;
  --text: #4a5b70;
  --text-h: var(--navy);
  --text-on-fill: #ffffff;
  --bg: #ffffff;
  --bg-soft: #f4fafc;
  --border: #e3edf2;
  --callout-bg: rgba(227, 244, 248, 0.7);
  --shadow-card: 0 10px 30px -12px rgba(15, 42, 74, 0.18);
  --hero-glow: rgba(196, 232, 242, 0.75);

  --sans: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;

  --space-4: 4px;
  --space-8: 8px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;
  --space-48: 48px;
  --space-64: 64px;
  --space-96: 96px;

  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-pill: 999px;
  --radius-circle: 50%;

  --fs-xs: 0.8125rem;
  --fs-sm: 0.9375rem;
  --fs-md: 1.0625rem;
  --fs-lg: 1.25rem;
  --fs-xl: 1.375rem;
  --fs-2xl: 2rem;
  --fs-hero: clamp(2.5rem, 4.5vw, 3.5rem);

  --container: 1180px;
  --header-height: 88px;

  /* Breakpoints cannot be custom properties; use 900px (stack) and 600px (narrow). */

  color-scheme: light;
  font: 400 var(--fs-md) / 1.6 var(--sans);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

body {
  margin: 0;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background:
    radial-gradient(ellipse 60% 55% at 78% 22%, var(--hero-glow), transparent 70%),
    linear-gradient(180deg, var(--bg-soft) 0, var(--bg) 720px);
}

main {
  flex: 1;
}

h1,
h2,
h3 {
  color: var(--text-h);
  margin: 0;
  line-height: 1.15;
}

p {
  margin: 0;
}

a {
  color: var(--teal-dark);
}

a:focus-visible {
  outline: 3px solid var(--teal);
  outline-offset: 3px;
  border-radius: var(--space-4);
}

.container {
  width: min(100% - 2 * var(--space-32), var(--container));
  margin-inline: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

/* Header */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
}

.brand img {
  display: block;
  height: 40px;
  width: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-32);
}

.nav-link {
  color: var(--navy);
  font-weight: 500;
  text-decoration: none;
}

.nav-link:hover {
  color: var(--teal-dark);
}

.button {
  display: inline-block;
  padding: var(--space-8) var(--space-32);
  border-radius: var(--radius-pill);
  background: var(--teal);
  color: var(--text-on-fill);
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.15s ease;
}

.button:hover {
  background: var(--teal-dark);
}

/* Hero */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: var(--space-48);
  padding-block: var(--space-16) var(--space-48);
}

.eyebrow {
  margin-bottom: var(--space-16);
  color: var(--teal);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1 {
  font-size: var(--fs-hero);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.lead {
  margin-top: var(--space-24);
  font-size: var(--fs-lg);
  max-width: 34em;
}

.callout {
  display: flex;
  gap: var(--space-16);
  align-items: flex-start;
  margin-top: var(--space-32);
  padding: var(--space-20) var(--space-24);
  border-left: 3px solid var(--teal);
  border-radius: var(--radius-md);
  background: var(--callout-bg);
  color: var(--navy-soft);
  max-width: 36em;
}

.callout-icon {
  flex: none;
  width: 28px;
  height: 28px;
  color: var(--teal);
}

.hero-figure {
  margin: 0;
}

.ecosystem {
  display: block;
  width: 100%;
  max-width: 560px;
  height: auto;
  margin-inline: auto;
}

.node-icons {
  color: var(--navy-soft);
}

.node-labels {
  fill: var(--navy);
  font-size: 13px;
  font-weight: 500;
}

.center-label {
  fill: var(--navy);
  font-size: 20px;
  font-weight: 700;
}

/* Feature cards */

.features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-24);
  padding-block: var(--space-16) var(--space-64);
}

.card {
  display: flex;
  gap: var(--space-20);
  padding: var(--space-32) var(--space-24);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg);
  box-shadow: var(--shadow-card);
}

.card h3 {
  margin-bottom: var(--space-12);
  font-size: var(--fs-xl);
  font-weight: 600;
}

.card p {
  font-size: var(--fs-sm);
}

.card-icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-circle);
  background: var(--teal-tint);
  color: var(--navy-soft);
}

.card-icon svg {
  width: 28px;
  height: 28px;
}

/* Partner */

.partner {
  position: relative;
  padding-block: var(--space-48);
}

.partner-image {
  position: absolute;
  inset: 0 auto 0 0;
  width: clamp(300px, 38%, 440px);
  /* Scaled to the box width so neither the town nor the built-in fade to white is cropped. */
  background: url("bergen.svg") left bottom / 100% auto no-repeat;
  pointer-events: none;
}

.partner-content {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--space-48);
  padding-left: clamp(280px, 34%, 380px);
}

.partner h2 {
  margin-bottom: var(--space-16);
  font-size: var(--fs-2xl);
  font-weight: 600;
}

.partner-text p:last-child {
  max-width: 36em;
}

.partner-logo {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  padding-left: var(--space-32);
  border-left: 1px solid var(--border);
  color: var(--navy);
  font-size: var(--fs-sm);
  line-height: 1.3;
}

.partner-logo svg {
  width: 64px;
  height: auto;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-24);
  padding-block: var(--space-20);
}

.footer-inner img {
  display: block;
  height: 34px;
  width: auto;
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--fs-sm);
  color: var(--navy-soft);
}

.footer-meta li {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  padding-inline: var(--space-24);
}

.footer-meta li + li {
  border-left: 1px solid var(--border);
}

.footer-meta li:last-child {
  padding-right: 0;
}

.footer-meta svg {
  width: 18px;
  height: 18px;
  color: var(--navy);
}

.footer-meta a {
  color: inherit;
  text-decoration: none;
}

.footer-meta a:hover {
  color: var(--teal-dark);
  text-decoration: underline;
}

.not-found {
  padding-block: var(--space-64) var(--space-96);
}

.not-found h1 {
  font-size: var(--fs-hero);
}

/* Responsive */

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    gap: var(--space-32);
  }

  .ecosystem {
    max-width: 480px;
  }

  .features {
    grid-template-columns: 1fr;
  }

  .partner {
    padding-top: 0;
  }

  .partner-image {
    position: static;
    width: 100%;
    height: 200px;
  }

  .partner-content {
    grid-template-columns: 1fr;
    gap: var(--space-24);
    padding-left: 0;
  }

  .partner-logo {
    padding-left: 0;
    padding-top: var(--space-24);
    border-left: 0;
    border-top: 1px solid var(--border);
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-meta li {
    padding-inline: 0 var(--space-16);
  }

  .footer-meta li + li {
    padding-left: var(--space-16);
  }
}

@media (max-width: 600px) {
  .container {
    width: min(100% - 2 * var(--space-20), var(--container));
  }

  .site-nav {
    gap: var(--space-16);
  }

  .button {
    padding-inline: var(--space-20);
  }

  .card {
    flex-direction: column;
  }

  /* SVG text scales with the diagram, so compensate on narrow screens. */
  .node-labels {
    font-size: 15px;
  }

  .footer-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-8);
  }

  .footer-meta li,
  .footer-meta li + li {
    padding: 0;
    border-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .button {
    transition: none;
  }
}