/* Reset + tokens --------------------------------------------------------- */

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

:root {
  --bg: #0a0a0b;
  --surface: #141416;
  --surface-2: #1a1a1d;
  --border: #2a2a2d;
  --fg: #e7e7e9;
  --dim: #9ca3af;
  --accent: #10b981;
  --accent-soft: rgba(16, 185, 129, 0.12);
  --danger: #f87171;
  --yellow: #facc15;
  --max: 68rem;
  --radius: 10px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Monaco, Consolas, monospace;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #fafafa;
    --surface: #ffffff;
    --surface-2: #f4f4f5;
    --border: #e4e4e7;
    --fg: #18181b;
    --dim: #52525b;
    --accent: #059669;
    --accent-soft: rgba(5, 150, 105, 0.08);
    --danger: #dc2626;
    --yellow: #eab308;
  }
}

::selection { background: var(--accent); color: #0a0a0b; }

/* Skip link --------------------------------------------------------------- */

.skip {
  position: absolute; left: 0; top: -40px;
  background: var(--accent); color: #0a0a0b;
  padding: 8px 12px; border-radius: 0 0 var(--radius) 0;
  text-decoration: none; font-weight: 600;
}
.skip:focus { top: 0; outline: none; }

/* Top nav ----------------------------------------------------------------- */

.top {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px;
  max-width: var(--max); margin: 0 auto;
  gap: 24px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--fg); text-decoration: none;
  font-weight: 600; letter-spacing: -0.01em;
}
.brand-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border-radius: 7px;
  background: var(--accent); color: #0a0a0b;
  font-family: var(--mono); font-weight: 700; font-size: 16px;
  line-height: 1;
}
.brand-mark.small { width: 22px; height: 22px; font-size: 13px; border-radius: 6px; }
.brand-name { font-family: var(--mono); font-size: 17px; }

.top-nav { display: flex; gap: 20px; font-size: 14px; }
.top-nav a {
  color: var(--dim); text-decoration: none;
  transition: color 120ms ease;
}
.top-nav a:hover, .top-nav a:focus-visible { color: var(--fg); outline: none; }

@media (max-width: 600px) {
  .top-nav a:nth-child(1),
  .top-nav a:nth-child(2),
  .top-nav a:nth-child(3) { display: none; }
}

/* Main layout ------------------------------------------------------------- */

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 24px;
}

section { padding: 56px 0; border-top: 1px solid var(--border); }
section:first-of-type { border-top: none; padding-top: 28px; }

h1, h2, h3 {
  letter-spacing: -0.02em;
  line-height: 1.2;
  font-weight: 700;
  margin: 0 0 16px;
}

h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); }
h2 { font-size: clamp(1.4rem, 2.4vw, 1.8rem); margin-bottom: 12px; }
h3 { font-size: 1.05rem; }

.prose {
  max-width: 58ch;
  color: var(--dim);
  font-size: 1.0625rem;
  margin: 0 0 24px;
}
.prose strong { color: var(--fg); font-weight: 600; }
.prose code, code {
  font-family: var(--mono);
  font-size: 0.92em;
  padding: 1px 6px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--fg);
}
.prose a { color: var(--accent); text-decoration: none; border-bottom: 1px solid transparent; }
.prose a:hover { border-bottom-color: var(--accent); }

/* Hero -------------------------------------------------------------------- */

.hero { padding-top: 24px; }

.eyebrow {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 20px;
}

.hero h1 {
  max-width: 20ch;
  margin-bottom: 20px;
}
.accent { color: var(--accent); }

.lede {
  font-size: 1.1rem;
  max-width: 60ch;
  color: var(--dim);
  margin: 0 0 32px;
}

.pills {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin: 24px 0 28px;
}
.pills span {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--dim);
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
}

.cta { display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 80ms ease, background 120ms ease, border-color 120ms ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #0a0a0b; }
.btn-primary:hover { background: #0fae79; }
.btn-ghost { background: transparent; color: var(--fg); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--dim); }

/* Terminal block ---------------------------------------------------------- */

.terminal {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 12px 0;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.02) inset;
}
.terminal.secondary { background: var(--surface-2); }

.terminal-chrome {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.terminal-chrome .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--border);
}
.dot-r { background: #ef4444cc; }
.dot-y { background: #f59e0bcc; }
.dot-g { background: #22c55ecc; }
.terminal-title {
  margin-left: 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--dim);
}

.terminal-body {
  margin: 0;
  padding: 18px 20px;
  font-family: var(--mono);
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--fg);
  overflow-x: auto;
  white-space: pre;
}
.terminal-body code { background: none; border: none; padding: 0; font-size: inherit; }
.terminal.compact .terminal-body { padding: 14px 18px; font-size: 13.5px; }

.prompt { color: var(--accent); margin-right: 10px; user-select: none; }
.muted { color: var(--dim); }

.copy {
  position: absolute; top: 10px; right: 10px;
  background: var(--surface-2);
  color: var(--dim);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 10px;
  font-family: var(--mono);
  font-size: 12px;
  cursor: pointer;
  transition: color 120ms ease, border-color 120ms ease;
}
.terminal-chrome + .terminal-body + .copy,
.terminal-chrome ~ .copy { top: 50px; }
.copy:hover { color: var(--fg); border-color: var(--dim); }
.copy.copied { color: var(--accent); border-color: var(--accent); }

/* Why grid ---------------------------------------------------------------- */

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin: 28px 0 0;
}
.grid > div {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}
.grid dt { font-weight: 600; margin-bottom: 6px; font-size: 15px; }
.grid dd { margin: 0; color: var(--dim); font-size: 14.5px; }

@media (max-width: 780px) {
  .grid { grid-template-columns: 1fr; }
}

.grid-trust { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 780px) { .grid-trust { grid-template-columns: 1fr; } }

/* How-it-works ASCII ------------------------------------------------------ */

.diagram {
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.7;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  overflow-x: auto;
  color: var(--fg);
  white-space: pre;
}

/* Code grid --------------------------------------------------------------- */

.code-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 20px;
}
@media (max-width: 780px) { .code-grid { grid-template-columns: 1fr; } }

.code-grid figure {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
}
.code-grid figcaption {
  padding: 8px 16px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--dim);
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.code-grid pre {
  margin: 0;
  padding: 16px 18px;
  font-family: var(--mono);
  font-size: 13.5px;
  line-height: 1.6;
  overflow-x: auto;
  white-space: pre;
}
.code-grid code { background: none; border: none; padding: 0; font-size: inherit; }
.cmt { color: var(--dim); }
.str { color: var(--accent); }

/* Quality tiers ----------------------------------------------------------- */

.tiers {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 20px;
}
@media (max-width: 780px) { .tiers { grid-template-columns: 1fr; } }

.tier {
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}
.tier h3 {
  font-family: var(--mono);
  font-size: 15px;
  color: var(--fg);
  margin-bottom: 8px;
  display: inline-flex; align-items: center; gap: 8px;
}
.tier p { color: var(--dim); font-size: 14.5px; margin: 0 0 12px; }
.tier code { display: inline-block; font-size: 12.5px; }

.tier-featured {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.default-tag {
  font-family: var(--mono);
  font-size: 11px;
  color: #0a0a0b;
  background: var(--accent);
  padding: 2px 8px;
  border-radius: 999px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}
@media (prefers-color-scheme: light) {
  .default-tag { color: #fff; }
}

/* Providers --------------------------------------------------------------- */

.provider-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 20px;
}
@media (max-width: 780px) { .provider-grid { grid-template-columns: 1fr; } }

.provider {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}
.provider h3 { margin-bottom: 6px; }
.provider p { margin: 0; color: var(--dim); font-size: 14px; font-family: var(--mono); }

/* Install block ----------------------------------------------------------- */

.install-block h3 {
  margin-top: 28px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.fine {
  margin-top: 18px;
  color: var(--dim);
  font-size: 13.5px;
}
.fine a { color: var(--accent); text-decoration: none; border-bottom: 1px solid transparent; }
.fine a:hover { border-bottom-color: var(--accent); }

/* Footer ------------------------------------------------------------------ */

.bottom {
  border-top: 1px solid var(--border);
  margin-top: 40px;
  padding: 28px 24px;
}
.bottom-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--dim);
}
.bottom-inner > div { display: inline-flex; align-items: center; gap: 10px; }
.bottom nav { display: flex; flex-wrap: wrap; gap: 18px; }
.bottom a { color: var(--dim); text-decoration: none; }
.bottom a:hover { color: var(--fg); }

/* Scrollbar polish (WebKit only; graceful skip elsewhere) ----------------- */

::-webkit-scrollbar { height: 10px; width: 10px; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 10px; }
::-webkit-scrollbar-track { background: transparent; }

/* Reduced motion ---------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}