:root {
  --paper: #f7f5ef;
  --ink: #11110f;
  --muted: #6f6a60;
  --rule: rgba(17, 17, 15, 0.16);
  --accent: #d3411f;
  --soft: #ede9df;
  --header-height: 56px;
  --hero-peek: clamp(5rem, 16vh, 9rem);
}

* {
  box-sizing: border-box;
}

html {
  -webkit-font-smoothing: antialiased;
  background: var(--paper);
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.1;
}

body {
  margin: 0;
  min-height: 100vh;
}

a {
  color: inherit;
}

.site-header {
  align-items: center;
  background: color-mix(in srgb, var(--paper) 90%, transparent);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  height: var(--header-height);
  left: 0;
  padding: 0 26px;
  position: fixed;
  right: 0;
  top: 0;
  z-index: 10;
}

.wordmark,
.header-link {
  text-decoration: none;
}

.wordmark {
  font-size: clamp(1.1rem, 1.8vw, 1.55rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.header-link {
  font-size: clamp(0.95rem, 1.25vw, 1.15rem);
  line-height: 1;
  min-height: 40px;
  padding-block: 12px;
  text-underline-offset: 0.18em;
}

.header-link:hover,
.header-link:focus-visible {
  text-decoration: underline;
}

.header-link:focus-visible,
.button-primary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.header-link:last-child,
.header-current {
  justify-self: end;
}

.install-cta {
  border: 0;
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  min-height: 40px;
  padding: 13px 14px 11px;
  text-transform: uppercase;
  transition-duration: 160ms;
  transition-property: background-color, color, scale;
  transition-timing-function: cubic-bezier(0.2, 0, 0, 1);
}

.install-cta:hover {
  background: var(--accent);
  text-decoration: none;
}

.install-cta:active {
  scale: 0.96;
}

.header-back {
  justify-self: start;
}

.home-shell {
  display: grid;
  grid-template-columns: minmax(0, 50vw) minmax(360px, 1fr);
  min-height: 100vh;
}

.copy-rail {
  min-height: 100vh;
  overflow: visible;
  padding-top: var(--header-height);
  scroll-behavior: smooth;
}

.copy-page {
  align-items: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: auto;
  padding: clamp(3rem, 7vw, 7rem) clamp(1.6rem, 5vw, 5.5rem);
  text-align: center;
}

.hero-copy {
  min-height: max(360px, calc(100vh - var(--header-height) - var(--hero-peek)));
  padding-block: clamp(4rem, 9vw, 7rem);
}

.access-dialog {
  background: transparent;
  border: 0;
  color: var(--ink);
  margin: auto;
  max-width: calc(100vw - 2rem);
  padding: 0;
  width: 36rem;
}

.access-dialog::backdrop {
  background: rgba(17, 17, 15, 0.38);
  backdrop-filter: blur(3px);
}

.access-dialog-inner {
  background: var(--paper);
  box-shadow:
    0 0 0 1px rgba(17, 17, 15, 0.08),
    0 24px 80px rgba(17, 17, 15, 0.2);
  padding: clamp(2rem, 6vw, 4rem);
  position: relative;
}

.access-dialog h2 {
  font-size: clamp(2.5rem, 6vw, 4.4rem);
  line-height: 0.96;
  margin-bottom: clamp(2rem, 5vw, 3rem);
  max-width: 8em;
  text-wrap: balance;
}

.access-close {
  background: transparent;
  border: 0;
  color: var(--muted);
  cursor: pointer;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  min-height: 44px;
  padding: 0.75rem;
  position: absolute;
  right: 0.75rem;
  text-transform: uppercase;
  top: 0.75rem;
  transition-duration: 160ms;
  transition-property: color;
  transition-timing-function: cubic-bezier(0.2, 0, 0, 1);
}

.access-close:hover {
  color: var(--accent);
}

.access-close:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.access-kicker {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  margin-bottom: 0.8rem;
  text-align: left;
  text-transform: uppercase;
}

.access-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
}

.access-row input,
.access-row button {
  border: 0;
  border-radius: 0;
  min-height: 48px;
}

.access-row input {
  appearance: none;
  background: transparent;
  box-shadow: inset 0 -1px 0 var(--ink);
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
  min-width: 0;
  padding: 0.75rem 0.9rem;
  transition-duration: 160ms;
  transition-property: box-shadow;
  transition-timing-function: cubic-bezier(0.2, 0, 0, 1);
}

.access-row input::placeholder {
  color: color-mix(in srgb, var(--muted) 76%, transparent);
}

.access-row input:focus {
  box-shadow: inset 0 -2px 0 var(--accent);
  outline: none;
}

.access-row button {
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  padding: 0 1.15rem;
  text-transform: uppercase;
  transition-duration: 160ms;
  transition-property: background-color, color, scale;
  transition-timing-function: cubic-bezier(0.2, 0, 0, 1);
}

.access-row button:hover {
  background: var(--accent);
}

.access-row button:disabled {
  cursor: wait;
  opacity: 0.55;
}

.access-row button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.access-row button:active {
  scale: 0.96;
}

.access-note,
.access-status {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.68rem;
  letter-spacing: 0.02em;
  line-height: 1.4;
  text-align: left;
}

.access-note {
  margin-top: 0.65rem;
}

.access-status {
  color: var(--accent);
  min-height: 1em;
  margin-top: 0.3rem;
}

.eyebrow {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  margin: 0 0 1.25rem;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-block: 0;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 5.6rem);
  letter-spacing: 0;
  line-height: 0.96;
  max-width: 9.5em;
  text-wrap: balance;
}

.lede {
  color: var(--muted);
  font-size: clamp(1.1rem, 1.8vw, 1.55rem);
  line-height: 1.25;
  margin-top: 1.35rem;
  max-width: 28rem;
  text-wrap: pretty;
}

.button-primary {
  background: var(--ink);
  color: var(--paper);
  display: inline-flex;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.8rem;
  justify-content: center;
  letter-spacing: 0.08em;
  margin-top: 2rem;
  min-height: 42px;
  padding: 14px 18px 12px;
  text-decoration: none;
  text-transform: uppercase;
  transition-duration: 160ms;
  transition-property: background-color, color, scale;
  transition-timing-function: cubic-bezier(0.2, 0, 0, 1);
}

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

.button-primary:active {
  scale: 0.96;
}

.media-rail {
  align-items: center;
  display: flex;
  height: max(calc(360px + var(--header-height)), calc(100vh - var(--hero-peek)));
  justify-content: center;
  padding: var(--header-height) clamp(2rem, 7vw, 8rem) 0 clamp(1rem, 4vw, 4rem);
  position: sticky;
  top: 0;
}

.video-plate {
  position: relative;
  margin: 0;
  width: min(31vw, 440px);
}

.video-plate video {
  aspect-ratio: 960 / 1378;
  background: var(--soft);
  box-shadow: 0 0 0 1px rgba(17, 17, 15, 0.08), 0 24px 80px rgba(17, 17, 15, 0.08);
  display: block;
  object-fit: cover;
  width: 100%;
}

.flow-copy h2 {
  font-size: clamp(2.1rem, 4.4vw, 4.8rem);
  line-height: 0.98;
  max-width: 8.8em;
  text-wrap: balance;
}

.flow-copy {
  justify-content: flex-start;
  padding-bottom: clamp(2rem, 6vh, 4rem);
  padding-top: clamp(2rem, 5vh, 4rem);
}

.visually-hidden {
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  height: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

.flow-list {
  counter-reset: flow;
  list-style: none;
  margin: 2.2rem 0 0;
  max-width: 30rem;
  padding: 0;
  text-align: left;
  width: 100%;
}

.flow-list li {
  border-top: 1px solid var(--rule);
  counter-increment: flow;
  display: grid;
  gap: 0.75rem;
  grid-template-columns: 3ch 1fr;
  padding: 1.05rem 0;
}

.flow-list li::before {
  color: var(--accent);
  content: counter(flow, decimal-leading-zero);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.72rem;
  padding-top: 0.2rem;
}

.flow-command,
.flow-detail {
  grid-column: 2;
}

.flow-command {
  font-size: 1.2rem;
  font-weight: 700;
}

.flow-detail {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.35;
  margin-top: -0.45rem;
}

.install {
  background:
    linear-gradient(90deg, transparent 0, transparent calc(50% - 1px), var(--rule) calc(50% - 1px), var(--rule) 50%, transparent 50%),
    var(--paper);
}

.install-shell {
  margin: 0 auto;
  max-width: 880px;
  padding: calc(var(--header-height) + 4rem) clamp(1.5rem, 6vw, 5rem) 6rem;
}

.install-hero {
  min-height: 42vh;
  padding-top: clamp(2rem, 7vw, 6rem);
  text-align: center;
}

.install-hero h1 {
  margin-inline: auto;
}

.install-hero .lede {
  margin-inline: auto;
}

.doc-section {
  border-top: 1px solid var(--rule);
  padding: 2rem 0 2.4rem;
}

.doc-section h2 {
  font-size: clamp(1.55rem, 3vw, 2.5rem);
  line-height: 1;
  margin-bottom: 1rem;
}

.doc-section p {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.45;
  max-width: 42rem;
}

pre {
  background: #151411;
  color: #f7f5ef;
  font-size: 0.9rem;
  line-height: 1.45;
  margin: 1rem 0 0;
  overflow-x: auto;
  padding: 1rem;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.flowchart {
  display: grid;
  gap: 0;
  margin-top: 1.2rem;
}

.flowchart span {
  align-items: center;
  border-top: 1px solid var(--rule);
  display: flex;
  font-size: clamp(1.15rem, 2.4vw, 1.75rem);
  justify-content: space-between;
  min-height: 58px;
  padding: 0.75rem 0;
}

.flowchart span::after {
  color: var(--accent);
  content: "↓";
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 1rem;
}

.flowchart span:last-child {
  border-bottom: 1px solid var(--rule);
}

.flowchart span:last-child::after {
  content: "";
}

@media (max-width: 800px) {
  :root {
    --header-height: 52px;
  }

  .site-header {
    grid-template-columns: 1fr auto;
    padding-inline: 16px;
  }

  .header-back {
    display: none;
  }

  .wordmark {
    justify-self: start;
  }

  .wordmark {
    font-size: 0.92rem;
  }

  .header-link {
    font-size: 0.9rem;
  }

  .home-shell {
    display: flex;
    flex-direction: column-reverse;
    min-height: auto;
    padding-top: var(--header-height);
  }

  .copy-rail {
    height: auto;
    overflow: visible;
    padding-top: 0;
  }

  .copy-page {
    min-height: auto;
    padding: 3.8rem 1.25rem;
  }

  .hero-copy {
    min-height: auto;
    padding-block: 5rem;
  }

  .access-row {
    gap: 0.75rem;
    grid-template-columns: 1fr;
  }

  .access-row button {
    width: 100%;
  }

  h1 {
    font-size: clamp(2.6rem, 13vw, 4.2rem);
  }

  .media-rail {
    height: auto;
    padding: 4rem 1.25rem 0;
    position: static;
  }

  .video-plate {
    width: min(72vw, 340px);
  }

  .flow-list {
    max-width: none;
  }

  .install {
    background: var(--paper);
  }

  .install-shell {
    padding: calc(var(--header-height) + 2rem) 1.25rem 4rem;
  }

  .install-hero {
    min-height: 34vh;
  }
}

@media (prefers-reduced-motion: reduce) {
  .access-close,
  .access-row button,
  .access-row input {
    transition-duration: 0.01ms;
  }

  .access-row button:active {
    scale: 1;
  }
}