/* Aether Technologies — holding page.
   Layout: wordmark held top left, wavefront field propagating in from the
   right edge, contact line along the base. */

:root {
  --paper: #E7EBEC;
  --ink: #0F1518;
  --ink-soft: #4C5A5C;
  --rule: #BFC9C9;
  --accent: #1F6257;
  --wave: 31, 98, 87;
  --wave-strength: 0.5;

  --display: "Bodoni Moda", Didot, "Times New Roman", serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0A0E10;
    --ink: #E2E8E8;
    --ink-soft: #8C9A9A;
    --rule: #222C2E;
    --accent: #6FBFAF;
    --wave: 111, 191, 175;
    --wave-strength: 0.62;

    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--mono);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

.sheet {
  position: relative;
  z-index: 1;
  min-height: 100%;
  max-width: 72rem;
  margin: 0 auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
  padding-block: clamp(2.5rem, 7vw, 4rem);
  display: flex;
  flex-direction: column;
  gap: clamp(3rem, 10vw, 6rem);
}

/* Wordmark */

.eyebrow {
  margin: 0 0 clamp(1.25rem, 3vw, 2rem);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow::before {
  content: "";
  width: 2.5rem;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}

h1 {
  margin: 0;
  font-weight: 400;
  text-wrap: balance;
}

.mark-a {
  display: block;
  font-family: var(--display);
  font-size: clamp(3.75rem, 13vw, 9rem);
  line-height: 0.88;
  letter-spacing: -0.015em;
  font-variation-settings: "opsz" 72;
}

.mark-b {
  display: block;
  margin-top: clamp(0.75rem, 2vw, 1.25rem);
  font-size: clamp(0.75rem, 2.2vw, 1.0625rem);
  font-weight: 500;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* Contact */

.foot {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  border-top: 1px solid var(--rule);
  padding-top: 1.25rem;
}

.addr {
  font-size: 0.875rem;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  word-break: break-all;
}

.addr:hover { border-bottom-color: currentColor; }

.copy {
  appearance: none;
  border: 1px solid var(--rule);
  border-radius: 2px;
  background: transparent;
  color: var(--ink-soft);
  font-family: inherit;
  font-size: 0.5625rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.3rem 0.55rem;
  cursor: pointer;
  transition: color 160ms ease, border-color 160ms ease;
}

.copy:hover {
  color: var(--accent);
  border-color: var(--accent);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

@media (max-width: 640px) {
  .mark-b { letter-spacing: 0.3em; }
}