/* KeyoAPI public surfaces — paper / workshop, not SaaS gradient. */
@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=IBM+Plex+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Noto+Sans+SC:wght@400;500;600;700&display=swap");

:root {
  --bg: #f6f5f1;
  --surface: #fffcf7;
  --ink: #1c1c19;
  --ink-2: #3f3f38;
  --muted: #6b6b63;
  --line: #ddd9d0;
  --line-strong: #c9c4b8;
  --accent: #1c1c19;
  --link: #21564b;
  --link-hover: #163c34;
  --ok: #21564b;
  --panel: #161614;
  --panel-ink: #eceae4;
  --panel-muted: #9a978c;
  --radius: 3px;
  --font: "IBM Plex Sans", "Noto Sans SC", ui-sans-serif, system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

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

code {
  font-family: var(--mono);
  font-size: 0.92em;
  background: color-mix(in srgb, var(--line) 55%, var(--surface));
  padding: 0.1em 0.35em;
  border-radius: 2px;
}
pre code {
  background: transparent;
  padding: 0;
  color: inherit;
  font-size: inherit;
  border-radius: 0;
}

/* ── Nav ─────────────────────────────────────────────────────────────── */
.k-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 1080px;
  margin: 0 auto;
  padding: 18px 24px 0;
}
.k-wordmark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.03em;
  color: var(--ink);
  text-decoration: none;
}
.k-wordmark:hover { color: var(--ink); text-decoration: none; }
.k-wordmark img,
.k-wordmark svg {
  width: 22px;
  height: 22px;
  flex: none;
  display: block;
}
.k-nav nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 4px 14px;
  font-size: 13.5px;
}
.k-nav nav a { color: var(--muted); text-decoration: none; }
.k-nav nav a:hover { color: var(--ink); }
.k-nav-cta {
  color: var(--ink) !important;
  font-weight: 600;
  padding: 6px 10px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
}
.k-nav-cta:hover { background: var(--ink); color: var(--surface) !important; text-decoration: none; }

/* ── Buttons ─────────────────────────────────────────────────────────── */
.k-btn {
  display: inline-block;
  padding: 10px 16px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  line-height: 1.2;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.k-btn:hover { text-decoration: none; }
.k-btn:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.k-btn-primary { background: var(--ink); color: #f6f5f1; }
.k-btn-primary:hover { background: #000; color: #f6f5f1; }
.k-btn-secondary {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line-strong);
}
.k-btn-secondary:hover { border-color: var(--ink); color: var(--ink); }
.k-btn-link { background: transparent; color: var(--link); padding-inline: 8px; }
.k-btn-link:hover { color: var(--link-hover); }

/* ── Terminal panel ──────────────────────────────────────────────────── */
.k-panel {
  background: var(--panel);
  color: var(--panel-ink);
  border-radius: var(--radius);
  padding: 18px 18px 16px;
  text-align: left;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.55;
  overflow: auto;
  border: 1px solid #2a2924;
}
.k-panel .label,
.k-panel .k-label {
  color: var(--panel-muted);
  margin-bottom: 5px;
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.k-panel .label + .label,
.k-panel .k-label + .k-label { margin-top: 14px; }

/* ── Content pages ───────────────────────────────────────────────────── */
.k-page { max-width: 760px; margin: 0 auto; padding: 28px 24px 80px; }
.k-page h1 { font-size: clamp(1.6rem, 3vw, 2rem); letter-spacing: -0.03em; margin: 0 0 8px; font-weight: 600; }
.k-page h2 { font-size: 1.12rem; margin: 28px 0 8px; letter-spacing: -0.02em; }
.k-page .sub,
.k-page .meta { color: var(--muted); margin: 0 0 24px; }
.k-page details {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin: 0 0 8px;
}
.k-page summary { cursor: pointer; font-weight: 600; }
.k-page details p { margin: 10px 0 0; color: var(--ink-2); font-size: 15px; }
.k-page .card,
.k-page .k-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
}
.k-page ul,
.k-page ol { padding-left: 1.2em; }
.k-foot { margin-top: 36px; color: var(--muted); font-size: 13px; line-height: 1.8; }

html.is-embed .k-nav { display: none; }

/* ── Home ────────────────────────────────────────────────────────────── */
.k-home .k-home-shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: 48px 24px 56px;
}
.k-home .k-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.28fr) minmax(280px, 0.78fr);
  gap: 36px 40px;
  align-items: stretch;
  min-height: 0;
}
.k-home .k-hero > div:first-child {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}
.k-home .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: clamp(1.25rem, 2.6vw, 1.65rem);
  letter-spacing: -0.03em;
  text-transform: none;
  color: var(--ink);
  font-weight: 700;
  margin: 0 0 16px;
  line-height: 1;
}
.k-home .eyebrow img,
.k-home .eyebrow svg {
  width: 28px;
  height: 28px;
  flex: none;
}
.k-home h1 {
  font-size: clamp(1.7rem, 3.1vw, 2.35rem);
  line-height: 1.18;
  letter-spacing: -0.035em;
  margin: 0 0 12px;
  font-weight: 600;
  text-wrap: balance;
}
.k-home .sub {
  font-size: clamp(0.95rem, 1.35vw, 1.02rem);
  color: var(--ink-2);
  margin: 0 0 22px;
  max-width: none;
  line-height: 1.55;
  text-wrap: pretty;
}
.k-home .actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 0;
}
.k-home .k-panel {
  align-self: stretch;
}
.k-home .k-panel .label,
.k-home .k-panel .k-label {
  color: #b9b6ab;
}
.k-home .legal-links {
  margin: 36px 0 0;
  font-size: 12.5px;
  color: var(--ink-2);
  line-height: 1.8;
  grid-column: 1 / -1;
}
.k-home .legal-links a { color: var(--ink-2); }
.k-home .legal-links a:hover { color: var(--ink); }
.k-page .lang-bar,
body > .lang-bar {
  position: fixed;
  top: 14px;
  right: 16px;
  z-index: 10;
}
body > .lang-bar.embedded { display: none; }
body > .lang-bar select {
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 5px 8px;
  font-size: 12px;
  color: var(--ink);
  font-family: var(--font);
}

/* ── SEO / long-form landings ────────────────────────────────────────── */
.k-seo {
  max-width: 880px;
  margin: 0 auto;
  padding: 28px 20px 64px;
}
.k-seo .eyebrow {
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
  margin: 0 0 10px;
}
.k-seo h1 {
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  line-height: 1.18;
  letter-spacing: -0.03em;
  margin: 0 0 14px;
  font-weight: 600;
}
.k-seo h2 {
  font-size: 1.15rem;
  margin: 28px 0 10px;
  letter-spacing: -0.02em;
}
.k-seo p { margin: 0 0 14px; }
.k-seo .lead { font-size: 1.05rem; color: var(--ink-2); }
.k-seo .meta { font-size: 14px; color: var(--muted); margin: 0 0 18px; }
.k-seo .btnrow {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 28px;
}
.k-seo .card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin: 16px 0;
}
.k-seo pre {
  background: var(--panel);
  color: var(--panel-ink);
  padding: 14px 16px;
  border-radius: var(--radius);
  overflow: auto;
  font-size: 13px;
  font-family: var(--mono);
}
.k-seo table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background: var(--surface);
}
.k-seo th,
.k-seo td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}
.k-seo th { background: color-mix(in srgb, var(--line) 40%, var(--surface)); font-weight: 600; }
.k-seo .ok { color: var(--ok); font-weight: 600; }
.k-seo .grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  margin: 16px 0;
}
.k-seo .grid a {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  min-height: 4.5rem;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
  line-height: 1.35;
}
.k-seo .grid a:hover { border-color: var(--ink); }
.k-seo .grid a .grid-title { font-weight: 600; overflow-wrap: anywhere; }
.k-seo .grid a .grid-meta { color: var(--muted); font-size: 13px; font-weight: 500; }
.k-seo .grid a code { font-size: 12.5px; background: transparent; padding: 0; }
.k-seo .surfaces {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  margin: 16px 0 8px;
}
.k-seo .surf {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 16px;
  font-size: 14px;
}
.k-seo .surf h3 { font-size: 15px; margin: 0 0 8px; }
.k-seo .surf ul { margin: 0; padding-left: 1.15em; color: var(--muted); }
.k-seo .faq details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin: 0 0 10px;
  background: var(--surface);
}
.k-seo .faq summary { cursor: pointer; font-weight: 600; }
.k-seo .k-seo-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  padding-top: 28px;
  margin-top: 40px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--muted);
}
.k-seo .k-seo-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  font-size: 14px;
  color: var(--muted);
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 28px;
}
.k-seo .k-seo-nav a { color: var(--muted); text-decoration: none; }
.k-seo .k-seo-nav a:hover { color: var(--ink); }

@media (max-width: 820px) {
  .k-home .k-hero {
    grid-template-columns: 1fr;
    min-height: 0;
    gap: 28px;
  }
  .k-nav { padding: 16px 20px 0; }
  .k-home .k-home-shell { padding: 28px 20px 48px; }
}