:root {
  color-scheme: dark;
  --canvas: #090c0a;
  --canvas-raised: #0e1210;
  --ink: #f2f5ec;
  --muted: #9ca79d;
  --line: rgba(231, 241, 231, 0.13);
  --line-strong: rgba(231, 241, 231, 0.24);
  --signal: #b9ff45;
  --signal-soft: rgba(185, 255, 69, 0.12);
  --sans: Inter, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--canvas);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 72% 13%, rgba(185, 255, 69, 0.07), transparent 31rem),
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    var(--canvas);
  background-size: auto, 48px 48px, 48px 48px, auto;
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}

::selection {
  color: var(--canvas);
  background: var(--signal);
}

a {
  color: inherit;
}

.page-shell {
  width: min(100%, 1500px);
  min-height: 100vh;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 4.5rem);
}

.topbar,
footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.topbar {
  min-height: 92px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-decoration: none;
}

.brand-mark {
  width: 31px;
  height: 31px;
  fill: none;
  stroke: var(--signal);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.6;
}

.brand-divider,
.brand-parent {
  color: var(--muted);
}

.live-status {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 5px var(--signal-soft);
  animation: signal-pulse 2.8s ease-out infinite;
}

main {
  padding: clamp(5rem, 12vh, 9rem) 0 5rem;
}

.hero {
  max-width: 1150px;
}

.eyebrow,
.card-label,
.section-number,
.stage-index,
.principle-index,
.footer-note {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow,
.section-number {
  margin: 0 0 1.75rem;
  color: var(--signal);
}

h1 {
  max-width: 1100px;
  margin: 0;
  font-size: clamp(3.6rem, 8.7vw, 8.7rem);
  font-weight: 540;
  letter-spacing: -0.07em;
  line-height: 0.89;
}

h1 span {
  color: transparent;
  -webkit-text-stroke: 1px rgba(242, 245, 236, 0.53);
}

.hero-copy {
  max-width: 670px;
  margin: 3rem 0 0 auto;
  color: #c2cac1;
  font-size: clamp(1.05rem, 1.55vw, 1.35rem);
  line-height: 1.65;
}

.foundation-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 1px;
  margin-top: clamp(5rem, 11vw, 9rem);
  padding: 1px;
  background: var(--line);
}

.status-card {
  min-height: 310px;
  padding: clamp(1.5rem, 3vw, 2.8rem);
  background: var(--canvas-raised);
}

.primary-card {
  background:
    linear-gradient(135deg, rgba(185, 255, 69, 0.055), transparent 58%),
    var(--canvas-raised);
}

.card-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-label,
.stage-index,
.principle-index,
.footer-note {
  color: var(--muted);
}

.stage-name,
.access-value {
  margin: 5rem 0 1rem;
  font-size: clamp(1.8rem, 3vw, 3.2rem);
  letter-spacing: -0.045em;
}

.access-value {
  color: var(--signal);
}

.card-copy {
  max-width: 500px;
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

.lock {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
}

.lock svg {
  width: 18px;
  fill: none;
  stroke: var(--muted);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

.principles {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: clamp(3rem, 9vw, 9rem);
  padding: clamp(6rem, 12vw, 10rem) 0;
  border-bottom: 1px solid var(--line);
}

h2 {
  max-width: 470px;
  margin: 0;
  font-size: clamp(2.2rem, 4.2vw, 4.4rem);
  font-weight: 520;
  letter-spacing: -0.055em;
  line-height: 1;
}

.principle-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.principle-list li {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 1rem;
  padding: 1.65rem 0;
  border-bottom: 1px solid var(--line);
}

.principle-list h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 560;
}

.principle-list p {
  max-width: 520px;
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

footer {
  min-height: 104px;
  color: var(--muted);
  font-size: 0.78rem;
}

@keyframes signal-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(185, 255, 69, 0.4);
  }

  68%,
  100% {
    box-shadow: 0 0 0 8px rgba(185, 255, 69, 0);
  }
}

@media (max-width: 760px) {
  .topbar {
    min-height: 78px;
  }

  .brand-parent,
  .brand-divider {
    display: none;
  }

  main {
    padding-top: 4.25rem;
  }

  .hero-copy {
    margin-left: 0;
  }

  .foundation-grid,
  .principles {
    grid-template-columns: 1fr;
  }

  .status-card {
    min-height: 270px;
  }

  .stage-name,
  .access-value {
    margin-top: 3.75rem;
  }

  .principles {
    gap: 3.5rem;
  }

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

  footer p {
    margin: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}