:root {
  color-scheme: dark;
  --bg: #05070a;
  --ink: #f0eadf;
  --soft: rgba(240, 234, 223, 0.66);
  --dim: rgba(240, 234, 223, 0.42);
  --faint: rgba(240, 234, 223, 0.12);
  --rust: #c76a55;
  --blue: #789eb8;
  --green: #93a889;
  --mono: "SFMono-Regular", ui-monospace, Menlo, Monaco, Consolas, monospace;
  --serif: Charter, "Iowan Old Style", Georgia, serif;
}

* { box-sizing: border-box; }

html {
  min-height: 100%;
  background: var(--bg);
  font-size: 18px;
}

body {
  min-height: 100svh;
  margin: 0;
  overflow-x: hidden;
  background:
    linear-gradient(rgba(240, 234, 223, 0.024) 1px, transparent 1px),
    linear-gradient(90deg, rgba(240, 234, 223, 0.018) 1px, transparent 1px),
    radial-gradient(circle at 52% 4%, rgba(199, 106, 85, 0.16), transparent 26rem),
    radial-gradient(circle at 85% 72%, rgba(120, 158, 184, 0.11), transparent 26rem),
    var(--bg);
  background-size: 4rem 4rem, 4rem 4rem, auto, auto, auto;
  color: var(--ink);
  font-family: var(--serif);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 5;
  opacity: 0.1;
  mix-blend-mode: screen;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.8'/%3E%3C/svg%3E");
}

.glow {
  pointer-events: none;
  position: fixed;
  inset: auto -18rem -22rem auto;
  width: 48rem;
  height: 48rem;
  border-radius: 999rem;
  background: radial-gradient(circle, rgba(199, 106, 85, 0.13), transparent 62%);
  filter: blur(4px);
}

.shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  width: min(100% - 2rem, 72rem);
  min-height: 100svh;
  margin: 0 auto;
}

.nav,
footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
  color: var(--dim);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.03em;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--ink);
  text-decoration: none;
}

.mark {
  width: 2rem;
  height: 2rem;
  color: var(--ink);
}

.mark rect,
.mark path {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  vector-effect: non-scaling-stroke;
}

.mark path { opacity: 0.34; }
.mark circle { fill: var(--rust); }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(19rem, 0.7fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: center;
  padding: clamp(3.5rem, 10vh, 7rem) 0;
}

.copy {
  min-width: 0;
}

.eyebrow,
.line {
  margin: 0;
  font-family: var(--mono);
  text-transform: uppercase;
}

.eyebrow {
  color: var(--rust);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
}

h1 {
  margin: 0.8rem 0 0;
  font-size: clamp(4.6rem, 12vw, 10.8rem);
  font-weight: 500;
  letter-spacing: -0.09em;
  line-height: 0.81;
}

.line {
  margin-top: 1.35rem;
  color: var(--soft);
  font-size: clamp(0.78rem, 1.4vw, 0.96rem);
  letter-spacing: 0.1em;
}

.signup {
  display: flex;
  width: min(100%, 22rem);
  margin-top: 2rem;
  border: 1px solid rgba(240, 234, 223, 0.2);
  background: rgba(5, 7, 10, 0.54);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 30px 80px rgba(0, 0, 0, 0.32);
  backdrop-filter: blur(18px);
  padding: 0.28rem;
}

.signup:focus-within {
  border-color: rgba(199, 106, 85, 0.68);
}

input,
button {
  border: 0;
  font: inherit;
}

input {
  min-width: 0;
  flex: 1;
  outline: 0;
  background: transparent;
  color: var(--ink);
  padding: 0.72rem 0.78rem;
  font-family: var(--mono);
  font-size: 0.74rem;
}

input::placeholder { color: var(--dim); }

button {
  background: var(--ink);
  color: var(--bg);
  cursor: pointer;
  padding: 0.72rem 0.9rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  white-space: nowrap;
}

button:active { transform: translateY(1px); }
button:disabled { cursor: default; opacity: 0.62; }

.object {
  position: relative;
  min-height: clamp(22rem, 38vw, 34rem);
  perspective: 900px;
}

.object::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 51%;
  width: 58%;
  height: 58%;
  border: 1px solid rgba(240, 234, 223, 0.1);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0 5rem rgba(240, 234, 223, 0.012), inset 0 0 4rem rgba(199, 106, 85, 0.08);
}

.plate {
  position: absolute;
  left: 8%;
  right: 8%;
  height: 3.6rem;
  border: 1px solid var(--faint);
  background:
    linear-gradient(90deg, rgba(240, 234, 223, 0.02), rgba(240, 234, 223, 0.07), rgba(240, 234, 223, 0.015)),
    rgba(12, 16, 22, 0.74);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.32);
  transform: rotateX(58deg) rotateZ(-8deg);
}

.plate span {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%) rotateZ(8deg);
  color: var(--soft);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.plate-1 { top: 12%; opacity: 0.38; }
.plate-2 { top: 25%; opacity: 0.52; }
.plate-3 { top: 38%; border-color: rgba(199, 106, 85, 0.38); opacity: 0.95; }
.plate-4 { top: 51%; opacity: 0.6; }
.plate-5 { top: 64%; opacity: 0.42; }

.core {
  position: absolute;
  left: 54%;
  top: 44%;
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: var(--rust);
  box-shadow: 0 0 0 0.35rem rgba(199, 106, 85, 0.13), 0 0 3rem rgba(199, 106, 85, 0.78);
}

.questions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--faint);
  border-bottom: 1px solid var(--faint);
}

.questions p {
  margin: 0;
  padding: 1rem 0;
  color: var(--soft);
  font-size: clamp(1.2rem, 2.4vw, 2rem);
  letter-spacing: -0.055em;
  line-height: 1;
}

.questions p + p {
  border-left: 1px solid var(--faint);
  padding-left: 1rem;
}

footer {
  align-self: end;
}

footer a {
  color: var(--ink);
  text-decoration-color: rgba(199, 106, 85, 0.55);
  text-underline-offset: 0.18em;
}

footer a:hover {
  color: var(--rust);
}

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

@media (max-width: 820px) {
  html { font-size: 16px; }

  .shell {
    width: min(100% - 1.25rem, 72rem);
  }

  .nav,
  footer {
    padding: 0.85rem 0;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 1.2rem;
    align-items: start;
    padding: 3.8rem 0 1.2rem;
  }

  h1 {
    font-size: clamp(4.4rem, 22vw, 7.6rem);
  }

  .signup {
    width: 100%;
    max-width: 25rem;
  }

  .object {
    min-height: 18rem;
    order: -1;
    margin-top: 0.5rem;
  }

  .plate {
    left: 3%;
    right: 3%;
    height: 3rem;
  }

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

  .questions p {
    padding: 0.9rem 0;
    font-size: 1.55rem;
  }

  .questions p + p {
    border-left: 0;
    border-top: 1px solid var(--faint);
    padding-left: 0;
  }

  footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.45rem;
  }
}

@media (max-width: 420px) {
  .brand span,
  .year {
    font-size: 0.62rem;
  }

  .mark {
    width: 1.75rem;
    height: 1.75rem;
  }

  h1 {
    font-size: clamp(4rem, 24vw, 6rem);
  }

  .line {
    letter-spacing: 0.06em;
  }

  .signup {
    display: grid;
  }

  button,
  input {
    width: 100%;
  }
}