:root {
  --bg:        #0E0C0A;
  --bg-bar:    rgba(14, 12, 10, 0.72);
  --canvas:    #1B1815;
  --ink:       #E9E2D4;
  --ink-soft:  #C6BEAE;
  --ink-muted: #8C8579;
  --ink-faint: #5A554C;
  --hairline:  rgba(233, 226, 212, 0.10);
  --accent:    #C99A6A;
  --serif: "New York", "Charter", "Iowan Old Style", "Cambria", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Inter", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

code, pre { font-family: var(--mono); }
code { font-size: 0.9em; color: var(--ink-soft); }
pre {
  background: var(--canvas);
  border-radius: 8px;
  padding: 14px 18px;
  margin: 10px 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-soft);
  overflow-x: auto;
}
pre code { color: inherit; }

/* ===== Top bar (Apple-style sticky, blurred) ===== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg-bar);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--hairline);
}
.topbar .bar {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 22px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
}
.brand:hover { text-decoration: none; }
.monogram {
  width: 22px;
  height: 22px;
  border-radius: 5px;
  display: block;
  object-fit: cover;
}
.wordmark {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0;
}
.wordmark em,
.hero h1 em,
.footmark em {
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}
.topbar-nav {
  display: flex;
  align-items: center;
  gap: 14px;
}
.topbar-link {
  font-size: 13px;
  color: var(--ink-muted);
}
.topbar-link:hover { color: var(--ink); text-decoration: none; }

.topbar-cta {
  font-size: 13px;
  color: var(--accent);
  padding: 5px 12px;
  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  border-radius: 999px;
  transition: background 0.15s, border-color 0.15s;
}
.topbar-cta:hover {
  text-decoration: none;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border-color: var(--accent);
}

/* ===== Main ===== */
main {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 22px;
}

/* ===== Hero ===== */
.hero {
  text-align: center;
  padding: 120px 0 80px;
}
.hero-mark {
  display: block;
  margin: 0 auto 26px;
  width: 120px;
  height: 120px;
  border-radius: 27px;
  box-shadow: 0 12px 28px rgba(70, 50, 20, 0.16);
}
.hero h1 {
  font-family: var(--serif);
  font-size: 88px;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1;
  margin: 0 0 18px;
  color: var(--ink);
}
.hero .kicker {
  font-size: 21px;
  font-weight: 400;
  color: var(--ink-muted);
  margin: 0;
  letter-spacing: 0;
}

/* ===== Install ===== */
.install {
  max-width: 700px;
  margin: 0 auto;
  padding: 0 0 80px;
}

/* Apple-style segmented tabs */
.tabs {
  display: flex;
  justify-content: center;
  gap: 2px;
  margin: 0 auto 56px;
  padding: 4px;
  background: var(--canvas);
  border-radius: 999px;
  width: fit-content;
  border: 1px solid var(--hairline);
}
.tabs button {
  background: none;
  border: 0;
  padding: 8px 18px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-muted);
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
}
.tabs button:hover { color: var(--ink-soft); }
.tabs button[aria-selected="true"] {
  background: var(--bg);
  color: var(--ink);
  box-shadow: 0 0 0 1px var(--hairline);
}
.tabs button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

[role="tabpanel"] {
  padding-top: 8px;
}

h2 {
  font-family: var(--serif);
  font-size: 40px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
  color: var(--ink);
}
.req {
  color: var(--ink-muted);
  font-size: 15px;
  margin: 0 0 24px;
}
.steps {
  margin: 28px 0 0;
  padding-left: 22px;
  color: var(--ink-soft);
}
.steps li {
  margin-bottom: 14px;
  font-size: 16px;
  line-height: 1.55;
}
.steps li::marker { color: var(--ink-muted); }
.muted {
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid var(--hairline);
  color: var(--ink-faint);
  font-size: 13px;
}

.link.disabled {
  color: var(--ink-faint);
  pointer-events: none;
  text-decoration: none;
}
.sep { color: var(--ink-faint); margin: 0 6px; }

.from-source {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--hairline);
}
.from-source summary {
  cursor: pointer;
  color: var(--ink-muted);
  font-size: 14px;
  list-style: none;
  user-select: none;
}
.from-source summary::-webkit-details-marker { display: none; }
.from-source summary::before {
  content: "+ ";
  color: var(--ink-faint);
}
.from-source[open] summary::before { content: "– "; }
.from-source summary:hover { color: var(--ink); }

/* ===== Footer ===== */
footer {
  border-top: 1px solid var(--hairline);
  font-size: 12px;
  color: var(--ink-faint);
}
footer .bar {
  max-width: 980px;
  margin: 0 auto;
  padding: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
footer a { color: var(--ink-muted); }
footer a:hover { color: var(--ink-soft); text-decoration: none; }

/* ===== Mobile ===== */
@media (max-width: 640px) {
  main { padding: 0 18px; }
  .hero { padding: 72px 0 48px; }
  .hero-mark { width: 88px; height: 88px; border-radius: 20px; margin-bottom: 18px; }
  .hero h1 { font-size: 56px; letter-spacing: -0.02em; }
  .hero .kicker { font-size: 18px; }
  .tabs { width: 100%; justify-content: space-between; }
  .tabs button { padding: 8px 10px; font-size: 13px; }
  h2 { font-size: 30px; }
  .install { padding: 0 0 48px; }
  footer .bar { padding: 18px; }
}