:root {
  color-scheme: dark;
  --background: #05070d;
  --text: #f3f6fb;
  --muted: #8da2c2;
  --accent: #38bdf8;
  --border: #2b3a50;
  --border-strong: #52637d;
  --content-width: 1358px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  min-height: 100%;
  overflow-x: hidden;
  background: var(--background);
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background: var(--background);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.page-shell {
  position: relative;
  width: min(calc(100% - 96px), var(--content-width));
  min-height: 100vh;
  margin: 0 auto;
  overflow-x: clip;
  padding: 36px 0 30px;
  display: flex;
  flex-direction: column;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 60px;
}

.brand,
.github-link,
.button,
.directory-row {
  text-decoration: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 20px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: clamp(1.15rem, 1.8vw, 1.9rem);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.brand-mark {
  width: 58px;
  flex: none;
  fill: none;
  stroke: var(--text);
  stroke-width: 1.5;
}

.brand-mark circle {
  stroke: none;
}

.brand-primary {
  fill: var(--accent);
}

.brand-secondary {
  fill: var(--text);
}

.github-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 4px;
  color: var(--accent);
  font-size: 1.2rem;
  transition: color 160ms ease;
}

.github-link svg {
  width: 22px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.7;
}

.github-link:hover {
  color: var(--text);
}

main {
  flex: 1;
}

.hero {
  min-height: 490px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 0.95fr);
  align-items: center;
  gap: 64px;
  padding: 54px 0 38px;
}

.hero-copy {
  position: relative;
  z-index: 1;
}

h1 {
  max-width: 670px;
  margin: 0;
  font-size: clamp(3.6rem, 5.2vw, 5.25rem);
  font-weight: 720;
  letter-spacing: -0.048em;
  line-height: 1.02;
}

.hero-copy p {
  max-width: 660px;
  margin: 28px 0 31px;
  color: var(--muted);
  font-size: clamp(1.15rem, 1.6vw, 1.55rem);
  line-height: 1.55;
}

.actions {
  display: flex;
  align-items: center;
  gap: 22px;
}

.button {
  min-height: 68px;
  padding: 0 27px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 17px;
  border: 2px solid var(--border-strong);
  border-radius: 8px;
  font-size: 1.15rem;
  font-weight: 550;
  transition:
    background-color 160ms ease,
    border-color 160ms ease,
    color 160ms ease;
}

.button svg {
  width: 29px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.55;
}

.button-primary {
  border-color: var(--accent);
  color: var(--accent);
}

.button:hover {
  border-color: var(--accent);
  background: rgb(56 189 248 / 9%);
  color: var(--accent);
}

.orbit-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 1.34;
  max-height: 440px;
}

.orbit,
.orbit-core {
  position: absolute;
  top: 50%;
  left: 50%;
}

.orbit {
  width: 82%;
  height: 42%;
  border: 1px solid #7d94b3;
  border-radius: 50%;
  transform-origin: center;
}

.orbit-one {
  transform: translate(-50%, -50%) rotate(-17deg);
}

.orbit-two {
  width: 86%;
  height: 36%;
  border-color: #455873;
  transform: translate(-50%, -50%) rotate(10deg);
}

.orbit-three {
  width: 88%;
  height: 37%;
  border-style: dashed;
  border-color: #7894b8;
  transform: translate(-50%, -50%) rotate(37deg);
}

.orbit-four {
  width: 82%;
  height: 34%;
  border-style: dashed;
  border-color: #7894b8;
  transform: translate(-50%, -50%) rotate(-37deg);
}

.orbit i,
.orbit b {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text);
  box-shadow: 0 0 0 3px rgb(5 7 13 / 75%);
}

.orbit i {
  top: 8%;
  left: 21%;
}

.orbit b {
  right: 12%;
  bottom: 17%;
}

.orbit-two i {
  top: auto;
  right: 5%;
  bottom: 23%;
  left: auto;
}

.orbit-three i {
  top: auto;
  bottom: 1%;
  left: 27%;
}

.orbit-three b {
  top: 1%;
  right: 24%;
  bottom: auto;
}

.orbit-four i {
  top: 21%;
  left: 2%;
  width: 7px;
  height: 7px;
}

.orbit-core {
  width: 25px;
  height: 25px;
  border-radius: 50%;
  background: var(--accent);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 24px rgb(56 189 248 / 20%);
}

.service-note {
  display: grid;
  grid-template-columns: minmax(230px, 0.75fr) minmax(0, 1.25fr);
  gap: 64px;
  padding: 38px 10px 41px;
  border-top: 1px solid var(--border-strong);
  border-bottom: 1px solid var(--border);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.service-note h2 {
  max-width: 380px;
  margin: 0;
  font-size: clamp(1.55rem, 2.2vw, 2.15rem);
  letter-spacing: -0.035em;
  line-height: 1.13;
}

.service-note-copy {
  max-width: 740px;
  color: var(--muted);
  font-size: 1.07rem;
  line-height: 1.6;
}

.service-note-copy p {
  margin: 0;
}

.service-note-copy p + p {
  margin-top: 16px;
}

.service-note-copy a {
  color: var(--accent);
  text-underline-offset: 0.18em;
}

.service-note-copy a:hover {
  color: var(--text);
}

.directory {
  border-top: 1px solid var(--border-strong);
}

.directory-row {
  min-height: 82px;
  padding: 0 6px 0 10px;
  display: grid;
  grid-template-columns: 52px minmax(220px, 0.9fr) 1.9fr 34px;
  align-items: center;
  gap: 20px;
  border-bottom: 1px solid var(--border);
  transition:
    background-color 160ms ease,
    padding 160ms ease;
}

.directory-row:hover {
  padding-right: 0;
  padding-left: 16px;
  background: rgb(56 189 248 / 4%);
}

.file-icon,
.arrow {
  fill: none;
  stroke: var(--accent);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

.file-icon {
  width: 30px;
}

.arrow {
  width: 26px;
}

.directory-name {
  color: var(--accent);
  font-size: 1.13rem;
}

.directory code {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 1.04rem;
}

footer {
  padding: 35px 0 0;
  color: var(--muted);
  text-align: center;
  font-size: 0.98rem;
}

footer span {
  padding: 0 7px;
}

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 5px;
}

@media (prefers-reduced-motion: no-preference) {
  .orbit-visual {
    animation: drift 12s ease-in-out infinite alternate;
  }

  @keyframes drift {
    to {
      transform: translateY(-7px);
    }
  }
}

@media (max-width: 900px) {
  .page-shell {
    width: min(calc(100% - 48px), var(--content-width));
    padding-top: 24px;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 72px 0 50px;
  }

  .orbit-visual {
    position: absolute;
    top: 125px;
    right: -14vw;
    width: 58vw;
    min-width: 360px;
    opacity: 0.38;
  }

  .directory-row {
    grid-template-columns: 42px 1fr 30px;
  }

  .service-note {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .directory code {
    display: none;
  }
}

@media (max-width: 560px) {
  .page-shell {
    width: calc(100% - 36px);
    padding-bottom: 24px;
  }

  .brand {
    gap: 10px;
    letter-spacing: 0.12em;
  }

  .brand-mark {
    width: 42px;
  }

  .github-link {
    font-size: 0;
  }

  .github-link svg {
    width: 25px;
  }

  .hero {
    padding: 78px 0 46px;
  }

  h1 {
    font-size: clamp(3rem, 15vw, 4.1rem);
  }

  .hero-copy p {
    font-size: 1.08rem;
  }

  .actions {
    align-items: stretch;
    flex-direction: column;
    gap: 12px;
  }

  .button {
    min-height: 58px;
  }

  .orbit-visual {
    top: 165px;
    right: -240px;
    width: 490px;
    opacity: 0.25;
  }

  .orbit-core {
    display: none;
  }

  .service-note {
    padding: 32px 4px 35px;
  }

  .service-note-copy {
    font-size: 1rem;
  }

  .directory-row {
    min-height: 75px;
    padding-left: 4px;
    gap: 12px;
  }

  .directory-row:hover {
    padding-left: 9px;
  }

  .directory-name {
    font-size: 1rem;
  }

  footer {
    padding-top: 28px;
    line-height: 1.7;
  }

  footer span {
    display: none;
  }
}