@font-face {
  font-family: "Schibsted Grotesk";
  src: url("fonts/schibsted.woff2") format("woff2");
  font-weight: 400 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --sea: #0b3b52;
  --sea-deep: #082f43;
  --white: #eaf4f8;
  --muted: #a8c6d4;
  --dim: #8fb3c4;
  --rule: rgba(234, 244, 248, 0.28);
  --hairline: rgba(234, 244, 248, 0.14);
  --sans: "Schibsted Grotesk", ui-sans-serif, system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --bar: clamp(3.4rem, 6vh, 4.4rem);
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  /* The CSS sea. The canvas is opaque and sits on top of it, so this is what
     shows with no WebGL and no JavaScript. */
  background:
    radial-gradient(120% 90% at 50% 6%, rgba(255, 255, 255, 0.06), transparent 62%),
    linear-gradient(180deg, var(--sea) 0%, var(--sea-deep) 100%);
  background-attachment: fixed;
  color: var(--white);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, p { margin: 0; }
a { color: inherit; }

::selection { background: var(--white); color: var(--sea); }

:focus-visible {
  outline: 2px solid var(--white);
  outline-offset: 5px;
  border-radius: 2px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 40;
  background: var(--sea-deep);
  color: var(--white);
  padding: 0.75rem 1.1rem;
  border: 1px solid var(--rule);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
}
.skip:focus { left: 1rem; top: 1rem; }

/* ---------- The sea ---------- */

#sea {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  display: block;
  pointer-events: none;
}

/* ---------- The bar ---------- */

.bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  height: var(--bar);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-inline: clamp(1.25rem, 4vw, 2.75rem);
  border-bottom: 1px solid var(--hairline);
}

/* A scrim appears only once the page has moved, so the bar sits on open water
   at rest but stays legible over everything below. */
.bar::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 47, 67, 0.74), rgba(8, 47, 67, 0));
  opacity: 0;
  transition: opacity 400ms var(--ease);
  pointer-events: none;
}
body.scrolled .bar::before { opacity: 1; }

.bar-mark,
.bar-nav a {
  position: relative;
  font-size: 0.76rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-decoration: none;
}

.bar-mark {
  font-weight: 600;
  color: rgba(234, 244, 248, 0.84);
  transition: color 300ms ease;
}
.bar-mark:hover { color: var(--white); }

.bar-nav {
  display: flex;
  gap: clamp(1.2rem, 3vw, 2.4rem);
}
.bar-nav a {
  font-weight: 500;
  color: rgba(168, 198, 212, 0.8);
  padding-bottom: 2px;
  transition: color 300ms ease;
}
.bar-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 420ms var(--ease);
}
.bar-nav a:hover { color: var(--white); }
.bar-nav a:hover::after { transform: scaleX(1); }

/* ---------- Screens ---------- */

main { position: relative; }

.screen {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: clamp(3.5rem, 9vh, 6rem) clamp(1.5rem, 5vw, 3rem);
  text-align: center;
  scroll-margin-top: var(--bar);
}

.screen--open {
  min-height: 100svh;
  padding-top: calc(var(--bar) + clamp(2rem, 5vh, 3.5rem));
}
/* No min-heights below the hero: content and padding set the height, so there
   is no manufactured scroll between the trades and the way in. */
.screen--pair,
.screen--close { padding-block: clamp(4.5rem, 11vh, 7.5rem); }

/* Each screen's content drifts a touch slower than the sea behind it.
   The offset lives in --py so it composes with anything else. */
.screen > .plate,
.screen > .pair {
  transform: translateY(var(--py, 0px));
  will-change: transform;
}

.plate { max-width: 44rem; }

/* ---------- Opening ---------- */

h1 {
  font-weight: 600;
  font-size: clamp(2.7rem, 9vw, 6.5rem);
  line-height: 1;
  letter-spacing: -0.038em;
}

.sub {
  margin-top: clamp(1.1rem, 2.4vw, 1.7rem);
  font-size: clamp(1rem, 1.8vw, 1.35rem);
  font-weight: 400;
  letter-spacing: -0.004em;
  color: var(--muted);
  max-width: 46ch;
  margin-inline: auto;
  text-wrap: balance;
}

.rule {
  display: block;
  height: 1px;
  width: clamp(3.5rem, 9vw, 6rem);
  margin: clamp(2.2rem, 5vw, 3.2rem) auto 0;
  background: var(--rule);
  transform-origin: center;
}

/* First-load arrival */
.js .screen--open h1,
.js .screen--open .sub { opacity: 0; transform: translateY(0.35em); }
.js .screen--open .rule { opacity: 0; transform: scaleX(0); }
.js .bar { opacity: 0; }

body.lit .bar {
  opacity: 1;
  transition: opacity 900ms var(--ease) 700ms;
}
body.lit .screen--open h1,
body.lit .screen--open .sub {
  opacity: 1;
  transform: none;
  transition: opacity 1000ms var(--ease), transform 1000ms var(--ease);
}
body.lit .screen--open .sub { transition-delay: 160ms; }
body.lit .screen--open .rule {
  opacity: 1;
  transform: scaleX(1);
  transition: opacity 800ms var(--ease) 520ms, transform 800ms var(--ease) 520ms;
}

/* ---------- The two trades ---------- */

.pair {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: start;
  gap: clamp(2rem, 6vw, 5.5rem);
  max-width: 62rem;
}

.pair-rule {
  align-self: stretch;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--rule) 22%, var(--rule) 78%, transparent);
}

.trade h2 {
  font-weight: 600;
  font-size: clamp(1.5rem, 3.4vw, 2.35rem);
  letter-spacing: -0.028em;
  line-height: 1.1;
}

.trade p {
  margin-top: clamp(0.9rem, 1.8vw, 1.25rem);
  color: var(--muted);
  font-size: clamp(0.98rem, 1.4vw, 1.1rem);
  max-width: 34ch;
  margin-inline: auto;
  text-wrap: balance;
}

/* ---------- Contact ---------- */

.label {
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: clamp(1.2rem, 2.6vw, 1.9rem);
}

.reach {
  display: inline-block;
  font-size: clamp(1.25rem, 3.4vw, 2.35rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--white);
  text-decoration: none;
  padding-bottom: 0.12em;
  background-image: linear-gradient(90deg, var(--rule), var(--rule));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 100% 1px;
  transition: background-size 420ms var(--ease);
}
.reach:hover {
  background-image: linear-gradient(90deg, var(--white), var(--white));
  background-size: 100% 2px;
}

/* ---------- Foot ---------- */

.foot {
  position: relative;
  text-align: center;
  padding: clamp(1.6rem, 4vh, 2.4rem) 1.5rem clamp(2rem, 5vh, 3rem);
  border-top: 1px solid var(--hairline);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
}

/* Screens two and three settle as they arrive. */
.js .screen--reveal { opacity: 0; }
.js .screen--reveal.in {
  opacity: 1;
  transition: opacity 900ms var(--ease);
}

/* ---------- Responsive ---------- */

@media (max-width: 700px) {
  .sub { max-width: 24ch; }
  .bar-mark { letter-spacing: 0.11em; }
  .bar-nav { gap: 1.1rem; }
  .bar-nav a { letter-spacing: 0.09em; }
  .pair {
    grid-template-columns: 1fr;
    gap: clamp(2.4rem, 8vw, 3.5rem);
  }
  .pair-rule {
    width: min(9rem, 40%);
    height: 1px;
    justify-self: center;
    background: linear-gradient(90deg, transparent, var(--rule) 22%, var(--rule) 78%, transparent);
  }
  .screen--pair,
  .screen--close { padding-block: clamp(3.5rem, 9vh, 5rem); }
}

/* Below ~360px the three bar items would collide; shrink them rather than wrap. */
@media (max-width: 380px) {
  .bar-mark,
  .bar-nav a { font-size: 0.66rem; letter-spacing: 0.07em; }
  .bar-nav { gap: 0.85rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .screen--open h1,
  .js .screen--open .sub,
  .js .screen--open .rule,
  .js .screen--reveal,
  .js .bar {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* Screenshot tooling only: snap every arrival to its finished state. */
.captured .screen--open h1,
.captured .screen--open .sub,
.captured .screen--reveal,
.captured .bar { opacity: 1 !important; transform: none !important; transition: none !important; }
.captured .screen--open .rule { opacity: 1 !important; transform: scaleX(1) !important; transition: none !important; }