/* aalborg.ai hub
 *
 * Implements the "Hub desktop" (1440) and "Hub mobil" (390) artboards from
 * docs/design/aalborg.ai.dc.html. Every colour, size and spacing value comes
 * from tokens.css; nothing here should introduce a new one. Square corners,
 * 1.5px ink borders on everything interactive, one hard offset shadow per
 * view, mono for everything machine-ish.
 */

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

html {
  background: var(--paper);
  color-scheme: light;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  font-weight: var(--fw-body);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--fjord);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--ink);
  background: var(--signal);
  text-decoration: none;
}

h1,
h2,
h3,
p {
  margin: 0;
}

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}

.wrap {
  width: 100%;
  max-width: 1440px;
  margin-inline: auto;
  padding-inline: var(--gutter-desktop);
}

.mono {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: var(--ls-mono);
}

.label {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: var(--fw-body);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip {
  position: absolute;
  left: 0;
  top: 0;
  padding: var(--sp-2) var(--sp-3);
  background: var(--signal);
  color: var(--ink);
  border: var(--border);
  font-weight: var(--fw-bold);
  transform: translateY(-120%);
  z-index: 10;
}

.skip:focus {
  transform: none;
}

/* Buttons ----------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--tap-min);
  padding: 15px 26px;
  border: var(--border);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  font-weight: var(--fw-bold);
  line-height: 1;
  color: var(--ink);
  background: transparent;
  text-decoration: none;
  transition:
    transform var(--dur-fast) var(--ease),
    box-shadow var(--dur-fast) var(--ease);
}

.btn:hover {
  color: var(--ink);
  background: var(--signal);
}

.btn--primary {
  background: var(--signal);
  box-shadow: var(--shadow-hard);
}

.btn--primary:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--ink);
}

.btn--primary:active {
  transform: translate(4px, 4px);
  box-shadow: none;
}

.btn--card {
  align-self: flex-start;
  margin-top: var(--sp-2);
  padding: 12px 20px;
  font-size: var(--fs-small);
}

.btn--card.btn--primary {
  box-shadow: 3px 3px 0 var(--ink);
}

/* Gimmick banner ---------------------------------------------------------- */

.banner {
  background: var(--ink);
  color: var(--paper);
}

.banner__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-block: 11px;
}

.banner__dot {
  flex: none;
  width: 10px;
  height: 10px;
  background: var(--signal);
  animation: blink 1.6s steps(1, end) infinite;
}

.banner__text {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: var(--ls-mono);
}

.banner__text strong {
  color: var(--signal);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.banner__date {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  color: oklch(0.62 0.02 250);
}

@keyframes blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0.15; }
}

/* App bar ----------------------------------------------------------------- */

.app-bar {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding-block: 20px;
  border-bottom: var(--border-hair);
  position: relative;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
}

.wordmark:hover {
  background: transparent;
}

.wordmark__mark {
  width: 18px;
  height: 18px;
  background: var(--signal);
  border: var(--border);
}

.wordmark__name {
  font-size: 18px;
  font-weight: var(--fw-display);
  letter-spacing: -0.02em;
}

.nav {
  margin-left: auto;
  display: flex;
  gap: 30px;
  font-family: var(--font-mono);
  font-size: 14px;
}

.nav a {
  color: var(--ink);
  text-decoration: none;
  min-height: var(--tap-min);
  display: inline-flex;
  align-items: center;
}

.nav a:hover {
  background: var(--signal);
}

.nav__soft {
  color: var(--ink-soft) !important;
}

.menu-toggle {
  display: none;
  margin-left: auto;
  flex-direction: column;
  gap: 3.5px;
  width: var(--tap-min);
  height: var(--tap-min);
  align-items: flex-end;
  justify-content: center;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.menu-toggle__bar {
  width: 20px;
  height: 2px;
  background: var(--ink);
}

/* Hero -------------------------------------------------------------------- */

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--sp-8);
  align-items: center;
  padding-block: 88px 76px;
}

.hero__copy {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.hero__title {
  font-size: clamp(46px, 7.2vw, var(--fs-display));
  font-weight: var(--fw-display);
  letter-spacing: var(--ls-display);
  line-height: var(--lh-display);
  text-wrap: balance;
}

.hero__lead {
  font-size: clamp(17px, 1.6vw, var(--fs-lead));
  line-height: var(--lh-lead);
  color: oklch(0.38 0.015 250);
  max-width: 520px;
  text-wrap: pretty;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-top: 6px;
}

.hero__figure {
  position: relative;
  margin: 0;
  height: 320px;
  border: 1px solid oklch(0.82 0.01 95);
  overflow: hidden;
}

.hero__image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__caption {
  position: absolute;
  left: 14px;
  bottom: 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  background: var(--paper);
  border: 1px solid oklch(0.82 0.01 95);
  padding: 5px 8px;
  color: var(--ink-soft);
}

/* Image slot -------------------------------------------------------------- */

.image-slot {
  background: repeating-linear-gradient(
    115deg,
    oklch(0.90 0.012 95) 0 7px,
    oklch(0.945 0.008 95) 7px 14px
  );
  border: 1px solid oklch(0.82 0.01 95);
  display: flex;
  align-items: flex-end;
  padding: 14px;
}

.image-slot__label {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  background: var(--paper);
  border: 1px solid oklch(0.82 0.01 95);
  padding: 5px 8px;
  color: var(--ink-soft);
}

/* Projects ---------------------------------------------------------------- */

.projects {
  padding-block: 0 72px;
}

.section-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: var(--sp-5);
}

.section-head__rule {
  flex: 1;
  height: 1px;
  background: oklch(0.84 0.01 95);
}

.section-head__count {
  color: var(--ink-soft);
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.card {
  background: var(--paper-raised);
  border: var(--border);
  display: flex;
  flex-direction: column;
  padding-bottom: var(--sp-6);
}

.card__image {
  height: 150px;
  border: 0;
  border-bottom: var(--border);
  padding: 12px;
}

.card__image .image-slot__label {
  font-size: 11px;
  padding: 4px 7px;
}

.card__body {
  padding: 26px 28px 0;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.card__domain {
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-size: var(--fs-label);
}

.card__title {
  font-size: var(--fs-h2);
  font-weight: var(--fw-display);
  letter-spacing: var(--ls-h2);
  line-height: var(--lh-h2);
}

.card__tagline {
  font-size: 17px;
  font-style: italic;
  color: var(--fjord);
}

.card__text {
  color: oklch(0.40 0.015 250);
  text-wrap: pretty;
}

/* Footer ------------------------------------------------------------------ */

.footer {
  margin-top: auto;
  border-top: var(--border);
  background: var(--paper-sunk);
}

.footer__inner {
  display: flex;
  align-items: center;
  gap: 18px;
  padding-block: 26px;
  font-size: var(--fs-small);
}

.footer__links {
  font-size: 14px;
}

.footer__links a {
  color: var(--fjord);
  text-decoration: none;
}

.footer__links a:hover {
  color: var(--ink);
  background: var(--signal);
}

.badge {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--edge);
  padding: 5px 9px;
  color: var(--ink-soft);
  white-space: nowrap;
}

/* Tablet ------------------------------------------------------------------ */

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    gap: var(--sp-6);
    padding-block: 56px 48px;
  }

  .hero__figure {
    height: 220px;
  }

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

/* Mobile (<= 640px) — the 390 artboard ------------------------------------ */

@media (max-width: 640px) {
  .wrap {
    padding-inline: var(--gutter-mobile);
  }

  .banner__inner {
    gap: 10px;
    padding-block: 10px;
  }

  .banner__dot {
    width: 9px;
    height: 9px;
  }

  .banner__text {
    font-size: 12.5px;
  }

  .banner__date {
    display: none;
  }

  .app-bar {
    padding-block: var(--sp-4);
    flex-wrap: wrap;
  }

  .wordmark__mark {
    width: 15px;
    height: 15px;
  }

  .wordmark__name {
    font-size: 16px;
  }

  .menu-toggle {
    display: flex;
  }

  .nav {
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    gap: 0;
    margin-left: 0;
    padding-top: var(--sp-3);
    border-top: var(--border-hair);
    margin-top: var(--sp-3);
  }

  .nav.is-open {
    display: flex;
  }

  .hero {
    padding-block: 34px 30px;
    gap: 18px;
  }

  .hero__copy {
    gap: 18px;
  }

  .hero__title {
    font-size: 46px;
    letter-spacing: -0.04em;
    line-height: 0.9;
  }

  .hero__lead {
    font-size: 17px;
  }

  /* The 390 artboard carries the calls to action on the cards only. */
  .hero__actions {
    display: none;
  }

  .hero__figure {
    height: 150px;
  }

  .hero__caption {
    left: 10px;
    bottom: 10px;
    font-size: 11px;
    padding: 4px 7px;
  }

  .image-slot__label {
    font-size: 11px;
    padding: 4px 7px;
  }

  .projects {
    padding-bottom: 26px;
  }

  .section-head {
    margin-bottom: 14px;
  }

  .section-head__rule,
  .section-head__count {
    display: none;
  }

  .grid {
    gap: 14px;
  }

  .card {
    padding: 20px;
  }

  .card__image,
  .card__domain {
    display: none;
  }

  .card__body {
    padding: 0;
    gap: 9px;
  }

  .card__title {
    font-size: 26px;
  }

  .card__tagline,
  .card__text {
    font-size: 15px;
    line-height: 1.45;
  }

  .btn--card {
    align-self: stretch;
    padding: 14px;
    font-size: 16px;
    margin-top: 6px;
  }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 7px;
    padding-block: 18px;
    font-size: 14px;
  }

  .footer__links {
    font-size: 13px;
  }

  .badge {
    margin-left: 0;
    margin-top: var(--sp-2);
  }
}

@media (prefers-reduced-motion: reduce) {
  .banner__dot {
    animation: none;
  }

  .btn,
  .btn--primary:hover,
  .btn--primary:active {
    transition: none;
    transform: none;
  }
}