:root {
  --canvas: #0b0d12;
  --surface: #151922;
  --surface-raised: #222836;
  --border: #2a3140;
  --text: #f4f6fa;
  --text-secondary: #b8c0ce;
  --text-tertiary: #8994a7;
  --violet: #9488ff;
  --blue: #5aa9ff;
  --warm: #f0b55a;
  --success: #54d1b2;
  --page-padding: clamp(1.25rem, 4vw, 4.5rem);
  --content-width: 78rem;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--canvas);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif;
  text-rendering: optimizeLegibility;
}

body {
  min-width: 18rem;
  margin: 0;
  background: var(--canvas);
  color: var(--text);
}

a {
  color: inherit;
}

.masthead,
main,
footer {
  width: min(100%, var(--content-width));
  margin-inline: auto;
}

.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 6rem;
  padding-inline: var(--page-padding);
  border-bottom: 1px solid var(--border);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: -0.015em;
  text-decoration: none;
}

.wordmark:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 0.4rem;
  border-radius: 0.25rem;
}

.ownership {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

main {
  padding-inline: var(--page-padding);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(17rem, 0.75fr);
  gap: clamp(3rem, 8vw, 8rem);
  align-items: center;
  min-height: min(48rem, calc(100svh - 6rem));
  padding-block: clamp(5rem, 10vw, 9rem);
}

.scope-note {
  width: fit-content;
  margin: 0 0 1.75rem;
  padding: 0.55rem 0.8rem;
  border: 1px solid color-mix(in srgb, var(--violet) 70%, var(--border));
  border-radius: 999px;
  color: var(--text);
  background: color-mix(in srgb, var(--violet) 12%, var(--canvas));
  font-size: 0.92rem;
  font-weight: 650;
}

h1,
h2,
p {
  text-wrap: pretty;
}

h1,
h2 {
  text-wrap: balance;
}

h1 {
  max-width: 13ch;
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", sans-serif;
  font-size: clamp(3.35rem, 7.5vw, 6rem);
  font-weight: 690;
  letter-spacing: -0.04em;
  line-height: 0.98;
}

.lede {
  max-width: 64ch;
  margin: 2rem 0 0;
  color: var(--text-secondary);
  font-size: clamp(1.08rem, 1.5vw, 1.3rem);
  line-height: 1.65;
}

.day-dial {
  width: min(100%, 25rem);
  justify-self: end;
  color: var(--border);
}

.day-dial svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.dial-orbit {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
}

.dial-orbit-inner {
  stroke-dasharray: 3 8;
}

.dial-segment {
  opacity: 0.92;
  transform-origin: 180px 180px;
  animation: settle 900ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.dial-blue {
  fill: var(--blue);
}

.dial-violet {
  fill: var(--violet);
  animation-delay: 70ms;
}

.dial-warm {
  fill: var(--warm);
  animation-delay: 140ms;
}

.dial-center {
  fill: var(--text);
}

.boundary {
  display: grid;
  grid-template-columns: minmax(13rem, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(2rem, 6vw, 7rem);
  padding-block: clamp(2.5rem, 5vw, 4rem);
  border-block: 1px solid var(--violet);
}

.boundary h2,
.scope h2,
.principles h2 {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", sans-serif;
  font-size: clamp(1.8rem, 3.4vw, 3rem);
  font-weight: 650;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

.boundary p {
  max-width: 64ch;
  margin: 0;
  color: var(--text-secondary);
  font-size: clamp(1.05rem, 1.4vw, 1.22rem);
  line-height: 1.7;
}

.scope,
.principles {
  padding-block: clamp(6rem, 11vw, 10rem);
}

.section-intro {
  display: grid;
  grid-template-columns: minmax(13rem, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(2rem, 6vw, 7rem);
}

.section-intro p {
  max-width: 62ch;
  margin: 0;
  color: var(--text-secondary);
  font-size: 1.12rem;
  line-height: 1.7;
}

.capability-list {
  margin: clamp(3.5rem, 7vw, 6.5rem) 0 0;
  border-top: 1px solid var(--border);
}

.capability-list > div {
  display: grid;
  grid-template-columns: minmax(9rem, 0.55fr) minmax(0, 1.45fr);
  gap: 2rem;
  padding-block: 1.6rem;
  border-bottom: 1px solid var(--border);
}

.capability-list dt {
  color: var(--text);
  font-size: 1rem;
  font-weight: 650;
}

.capability-list dd {
  max-width: 68ch;
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.65;
}

.principles {
  display: grid;
  grid-template-columns: minmax(13rem, 0.75fr) minmax(0, 1.25fr);
  gap: clamp(3rem, 8vw, 9rem);
  border-top: 1px solid var(--border);
}

.principle-copy {
  display: grid;
  gap: 2rem;
}

.principle-copy p {
  max-width: 62ch;
  margin: 0;
  color: var(--text-secondary);
  font-size: 1.08rem;
  line-height: 1.7;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 2.5rem var(--page-padding) 3.5rem;
  border-top: 1px solid var(--border);
  color: var(--text-tertiary);
  font-size: 0.9rem;
}

footer p {
  margin: 0;
}

.error-page {
  display: grid;
  align-content: center;
  justify-items: start;
  min-height: 100svh;
  padding: var(--page-padding);
}

.error-page h1 {
  max-width: 12ch;
  margin-top: 2rem;
  font-size: clamp(2.7rem, 7vw, 5.4rem);
}

.error-page p {
  margin: 1.5rem 0 0;
  color: var(--text-secondary);
  font-size: 1.1rem;
  line-height: 1.6;
}

.error-page a {
  margin-top: 2.25rem;
  color: var(--blue);
  font-weight: 650;
  text-underline-offset: 0.22em;
}

.error-page a:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 0.4rem;
  border-radius: 0.25rem;
}

@keyframes settle {
  from {
    opacity: 0;
    transform: scale(0.88) rotate(-7deg);
  }
}

@media (max-width: 52rem) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .day-dial {
    width: min(72vw, 21rem);
    justify-self: start;
  }

  .boundary,
  .section-intro,
  .principles {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 36rem) {
  .masthead {
    min-height: 5rem;
  }

  .ownership {
    max-width: 9rem;
    text-align: right;
  }

  .hero {
    gap: 3rem;
    padding-block: 4.5rem;
  }

  .day-dial {
    display: none;
  }

  h1 {
    font-size: clamp(2.9rem, 14vw, 4.2rem);
  }

  .capability-list > div {
    grid-template-columns: 1fr;
    gap: 0.65rem;
  }

  footer {
    flex-direction: column;
  }
}

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

@media (prefers-contrast: more) {
  :root {
    --border: #69758a;
    --text-secondary: #e0e5ee;
    --text-tertiary: #c0c8d6;
  }
}