@import url('./tokens.css');

* { box-sizing: border-box; }

html {
  background: var(--color-background);
  color-scheme: dark;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 20rem;
  overflow-x: hidden;
  background:
    radial-gradient(circle at var(--pointer-x, 50%) var(--pointer-y, 25%), var(--color-accent-soft), transparent 30rem),
    var(--color-background);
  color: var(--color-text-primary);
  font-family: var(--font-sans);
  font-weight: var(--font-weight-regular);
  letter-spacing: -0.015em;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: '';
  pointer-events: none;
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 5rem 5rem;
  mask-image: linear-gradient(to bottom, black, transparent 66%);
  opacity: 0.12;
}

.site-shell {
  width: min(100%, var(--content-max));
  margin: 0 auto;
  padding-inline: var(--page-gutter);
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  padding-top: max(var(--space-6), env(safe-area-inset-top));
  pointer-events: none;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  margin: 0;
  font-size: 1rem;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.28em;
  line-height: 1;
}

.status {
  display: inline-flex;
  gap: var(--space-2);
  align-items: center;
  color: var(--color-text-secondary);
  font-size: 0.72rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.status::before {
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 1.2rem var(--color-accent);
  content: '';
}

.signal-rail {
  position: fixed;
  top: 50%;
  right: max(1.25rem, 2.5vw);
  z-index: 15;
  display: grid;
  gap: 0.8rem;
  transform: translateY(-50%);
}

.rail-dot {
  width: 0.28rem;
  height: 0.28rem;
  border-radius: 50%;
  background: var(--color-border-strong);
  transition:
    background var(--motion-normal) var(--motion-ease),
    box-shadow var(--motion-normal) var(--motion-ease),
    transform var(--motion-normal) var(--motion-ease);
}

.rail-dot.is-active {
  background: var(--color-accent);
  box-shadow: 0 0 0.8rem var(--color-accent);
  transform: scale(1.4);
}

main { overflow: clip; }

.panel {
  display: grid;
  min-height: 100svh;
  place-items: center;
  padding-block: var(--space-24);
}

.panel-inner { width: 100%; }

.hero {
  align-items: center;
  padding-bottom: max(var(--space-16), env(safe-area-inset-bottom));
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(16rem, 0.42fr);
  gap: clamp(3rem, 7vw, 8rem);
  align-items: center;
}

.hero-copy { max-width: 68rem; }

.eyebrow,
.section-index {
  margin: 0 0 var(--space-6);
  color: var(--color-accent);
  font-size: clamp(0.7rem, 1vw, 0.86rem);
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.section-index { color: var(--color-text-secondary); }

.display {
  max-width: 10ch;
  margin: 0;
  font-size: clamp(4.4rem, 10.5vw, 9.3rem);
  font-weight: var(--font-weight-medium);
  letter-spacing: -0.075em;
  line-height: 0.84;
}

.display .accent { color: var(--color-accent); }

.scroll-note {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  margin: var(--space-12) 0 0;
  color: var(--color-text-secondary);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
}

.scroll-note::before {
  width: 2.5rem;
  height: 1px;
  background: var(--color-border-strong);
  content: '';
}

.signal-mark {
  position: relative;
  width: min(25vw, 18rem);
  min-width: 12rem;
  aspect-ratio: 1;
  justify-self: end;
}

.signal-core,
.signal-ring,
.signal-axis {
  position: absolute;
  inset: 50% auto auto 50%;
  display: block;
  transform: translate(-50%, -50%);
}

.signal-core {
  width: 0.72rem;
  height: 0.72rem;
  z-index: 2;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 2.2rem var(--color-accent);
}

.signal-ring {
  border: 1px solid var(--color-border-strong);
  border-radius: 50%;
}

.signal-ring-one {
  width: 46%;
  aspect-ratio: 1;
}

.signal-ring-two {
  width: 88%;
  aspect-ratio: 1;
  border-color: var(--color-border);
}

.signal-axis-x { width: 100%; height: 1px; background: linear-gradient(90deg, transparent, var(--color-border-strong), transparent); }
.signal-axis-y { width: 1px; height: 100%; background: linear-gradient(transparent, var(--color-border-strong), transparent); }

.signal-mark::before,
.signal-mark::after {
  position: absolute;
  inset: 50% auto auto 50%;
  width: 74%;
  aspect-ratio: 1;
  border: 1px solid var(--color-accent-soft);
  border-radius: 50%;
  content: '';
  transform: translate(-50%, -50%);
  animation: signal-pulse var(--motion-signal) ease-out infinite;
}

.signal-mark::after { animation-delay: calc(var(--motion-signal) / -2); }

.statement-panel .panel-inner { display: grid; gap: var(--space-4); }

.statement {
  max-width: 14ch;
  margin: 0;
  font-size: clamp(3.4rem, 8.4vw, 7.5rem);
  font-weight: var(--font-weight-medium);
  letter-spacing: -0.068em;
  line-height: 0.91;
}

.statement.muted { color: var(--color-text-secondary); }

.location-panel { align-items: end; }

.location-lockup {
  display: grid;
  gap: var(--space-6);
}

.location-name {
  margin: 0;
  font-size: clamp(4rem, 13vw, 10.5rem);
  font-weight: var(--font-weight-medium);
  letter-spacing: -0.078em;
  line-height: 0.8;
}

.location-name span { color: var(--color-accent); }

.location-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-8);
  align-items: center;
  color: var(--color-text-secondary);
  font-size: 0.78rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.signal-line {
  width: min(32rem, 72vw);
  height: 1px;
  margin-bottom: var(--space-2);
  background: linear-gradient(90deg, var(--color-accent), transparent);
  transform-origin: left;
}

.final-panel { min-height: 86svh; }

.final-copy {
  display: grid;
  gap: var(--space-6);
  max-width: 44rem;
}

.final-copy h2 {
  margin: 0;
  font-size: clamp(3.2rem, 8vw, 6.7rem);
  font-weight: var(--font-weight-medium);
  letter-spacing: -0.065em;
  line-height: 0.9;
}

.final-copy > p:last-of-type {
  max-width: 31rem;
  margin: 0;
  color: var(--color-text-secondary);
  font-size: clamp(1rem, 2vw, 1.16rem);
  line-height: 1.65;
}

.final-signal {
  position: relative;
  width: min(20rem, 70vw);
  height: 1px;
  margin-top: var(--space-6);
  background: var(--color-border);
}

.final-signal span {
  position: absolute;
  top: 50%;
  left: 0;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 1rem var(--color-accent);
  transform: translateY(-50%);
  animation: signal-travel 4.5s var(--motion-ease) infinite alternate;
}

.site-footer {
  padding-block: var(--space-8) max(var(--space-8), env(safe-area-inset-bottom));
  color: var(--color-text-secondary);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
}

.footer-inner {
  display: flex;
  gap: var(--space-4);
  justify-content: space-between;
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.js .reveal {
  opacity: 0;
  transform: translateY(2rem);
  transition:
    opacity var(--motion-slow) var(--motion-ease),
    transform var(--motion-slow) var(--motion-ease);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes signal-pulse {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(0.55); }
  18% { opacity: 0.55; }
  72%, 100% { opacity: 0; transform: translate(-50%, -50%) scale(1.24); }
}

@keyframes signal-travel {
  from { left: 0; }
  to { left: calc(100% - 0.45rem); }
}

@media (max-width: 52rem) {
  .signal-rail { display: none; }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }

  .signal-mark {
    width: min(42vw, 13rem);
    min-width: 9rem;
    justify-self: end;
    margin-right: 4vw;
  }
}

@media (max-width: 42rem) {
  body::before { background-size: 3.5rem 3.5rem; }

  .site-header { padding-top: max(var(--space-4), env(safe-area-inset-top)); }

  .status { font-size: 0.64rem; letter-spacing: 0.08em; }

  .panel {
    min-height: 100svh;
    padding-block: var(--space-16);
  }

  .hero { align-items: center; }

  .hero-layout {
    min-height: calc(100svh - 7rem);
    align-content: center;
    gap: var(--space-16);
  }

  .display {
    max-width: 7ch;
    font-size: clamp(4.05rem, 21vw, 6.5rem);
  }

  .scroll-note { margin-top: var(--space-8); }

  .signal-mark {
    width: 9.5rem;
    margin-right: var(--space-4);
  }

  .statement {
    max-width: 9ch;
    font-size: clamp(3.7rem, 17vw, 5.8rem);
  }

  .location-panel { align-items: center; }

  .location-name { font-size: clamp(4rem, 20vw, 6.8rem); }

  .location-meta {
    display: grid;
    gap: var(--space-3);
  }

  .final-copy h2 { max-width: 8ch; }

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .signal-mark::before,
  .signal-mark::after,
  .final-signal span { animation: none; }
}