:root {
  color-scheme: light;
  --ink: #202522;
  --muted: #626a65;
  --paper: #f4f0e8;
  --card: #fffdf8;
  --line: #d8d0c2;
  --accent: #315c4c;
  --accent-dark: #234438;
  --warm: #a45137;
  font-family: ui-serif, Georgia, "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  padding-bottom: 1rem;
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgb(164 81 55 / 10%), transparent 34rem),
    var(--paper);
  line-height: 1.7;
}

.hero,
main,
footer {
  width: min(100% - 2rem, 52rem);
  margin-inline: auto;
}

.hero {
  padding: clamp(3.5rem, 10vw, 7rem) 0 2rem;
}

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

h1 {
  max-width: 10ch;
  margin-bottom: 1rem;
  font-size: clamp(2.7rem, 9vw, 5.4rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

h2 {
  margin-bottom: 0.6rem;
  font-size: clamp(1.65rem, 5vw, 2.25rem);
  line-height: 1.2;
}

h3 {
  margin-bottom: 0.35rem;
  font-size: 1rem;
  letter-spacing: 0.04em;
}

.prototype,
.eyebrow {
  color: var(--warm);
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.lede {
  max-width: 38rem;
  color: var(--muted);
  font-size: clamp(1.05rem, 3vw, 1.3rem);
}

.public-card,
.stage-card {
  margin-bottom: 1.25rem;
  padding: clamp(1.4rem, 5vw, 2.5rem);
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  background: rgb(255 253 248 / 90%);
  box-shadow: 0 1.2rem 3rem rgb(61 54 42 / 7%);
}

.stages {
  display: grid;
  gap: 1.25rem;
}

.boundaries {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.stage-heading {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  justify-content: space-between;
}

.status {
  flex: none;
  margin: 0;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
}

.unlock-form {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

label {
  display: block;
  margin-bottom: 0.45rem;
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 0.92rem;
  font-weight: 700;
}

.unlock-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.6rem;
}

input,
button {
  min-height: 3rem;
  border-radius: 0.65rem;
  font: inherit;
}

input {
  width: 100%;
  border: 1px solid #8b918d;
  padding: 0.65rem 0.8rem;
  background: white;
}

button {
  border: 1px solid var(--accent);
  padding: 0.65rem 1rem;
  color: white;
  background: var(--accent);
  cursor: pointer;
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-weight: 750;
}

button:hover {
  background: var(--accent-dark);
}

input:focus-visible,
button:focus-visible {
  outline: 3px solid #c37555;
  outline-offset: 3px;
}

.feedback {
  min-height: 1.7em;
  margin: 0.5rem 0 0;
  color: #8c2f23;
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 0.9rem;
  font-weight: 650;
}

.restricted-content {
  margin-top: 1.5rem;
  padding: 1.5rem;
  border-left: 0.3rem solid var(--accent);
  background: #f0f4ef;
}

.restricted-content dl {
  display: grid;
  gap: 1rem;
  margin-bottom: 0;
}

.restricted-content dt {
  color: var(--muted);
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.08em;
}

.restricted-content dd {
  margin: 0.2rem 0 0;
}

.content-state {
  display: block;
  width: max-content;
  max-width: 100%;
  margin-top: 0.55rem;
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
  color: var(--accent-dark);
  background: white;
  font-family: ui-sans-serif, system-ui, sans-serif;
  font-size: 0.78rem;
  font-weight: 750;
}

footer {
  padding: 1.5rem 0 3rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.journey {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 2.4rem;
}

.journey::before {
  position: absolute;
  top: 1.5rem;
  bottom: 1.5rem;
  left: 0.72rem;
  width: 2px;
  background: var(--line);
  content: "";
}

.journey-step {
  position: relative;
}

.journey-step::before {
  position: absolute;
  z-index: 1;
  top: 2rem;
  left: -2.15rem;
  width: 0.85rem;
  height: 0.85rem;
  border: 3px solid var(--paper);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
  content: "";
}

@media (min-width: 44rem) {
  .boundaries {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 35rem) {
  .hero,
  main,
  footer {
    width: min(100% - 1rem, 52rem);
  }

  .stage-heading {
    display: block;
  }

  .status {
    display: inline-block;
    margin-bottom: 0.8rem;
  }

  .stage-card {
    padding: 1rem;
  }

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

  button {
    width: 100%;
  }

  .journey {
    padding-left: 1.2rem;
  }

  .journey::before {
    left: 0.2rem;
  }

  .journey-step::before {
    left: -1.38rem;
  }

}