/* Keymint marketing page. No external fonts or scripts: the page makes no third-party requests. */

:root {
  color-scheme: light dark;
  --bg: #f7f9f8;
  --bg-alt: #eef4f2;
  --surface: #ffffff;
  --border: #dfe7e4;
  --text: #13201c;
  --text-2: #4b5c57;
  --text-3: #71817c;
  --accent: #0f9f84;
  --accent-strong: #0b7f69;
  --accent-soft: #dff5ee;
  --on-accent: #ffffff;
  --shadow: 0 1px 2px rgb(16 24 22 / 0.06), 0 12px 32px rgb(16 24 22 / 0.08);
  --radius: 14px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --container: 1120px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1211;
    --bg-alt: #121a18;
    --surface: #172120;
    --border: #26332f;
    --text: #e7efec;
    --text-2: #a9b8b3;
    --text-3: #7f8f8a;
    --accent: #34c9a6;
    --accent-strong: #5fd9bb;
    --accent-soft: #143029;
    --on-accent: #052019;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.4), 0 12px 32px rgb(0 0 0 / 0.35);
  }
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.015em; text-wrap: balance; }
p { text-wrap: pretty; }
code { font-family: var(--mono); font-size: 0.9em; background: var(--accent-soft); color: var(--accent-strong); padding: 0.1em 0.35em; border-radius: 5px; }

a { color: var(--accent-strong); }
:where(a, button, summary, [tabindex]):focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

.container { width: min(100% - 32px, var(--container)); margin-inline: auto; }
.container.narrow { max-width: 760px; }

.skip-link {
  position: absolute;
  left: 16px;
  top: -100px;
  z-index: 100;
  background: var(--surface);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 8px;
  box-shadow: var(--shadow);
}
.skip-link:focus { top: 12px; }
main:focus { outline: none; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; font-size: 19px; letter-spacing: -0.01em; }
.brand img { width: 32px; height: 32px; }
.site-header nav { margin-left: auto; }
.nav-links { display: flex; gap: 22px; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--text-2); text-decoration: none; font-size: 15px; font-weight: 500; }
.nav-links a:hover { color: var(--text); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 10px;
  font-weight: 650;
  font-size: 16px;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background-color 0.15s, border-color 0.15s, transform 0.15s;
}
.btn.primary { background: var(--accent); color: var(--on-accent); }
.btn.primary:hover { background: var(--accent-strong); }
.btn.secondary { background: var(--surface); color: var(--text); border-color: var(--border); }
.btn.secondary:hover { border-color: var(--accent); }
.btn.small { min-height: 38px; padding: 0 14px; font-size: 14px; }
.btn.soon { background: var(--accent-soft); color: var(--accent-strong); cursor: default; }
@media (prefers-reduced-motion: no-preference) {
  .btn.primary:hover, .btn.secondary:hover { transform: translateY(-1px); }
}

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.cta-row.center { justify-content: center; }
.cta-note { width: 100%; margin: 4px 0 0; color: var(--text-3); font-size: 14px; }
.cta-row.center .cta-note { text-align: center; }

/* Hero */
.hero { padding: 72px 0 24px; background: radial-gradient(1200px 500px at 50% -120px, var(--accent-soft), transparent 70%); }
.hero-inner { max-width: 820px; text-align: center; }
.hero .cta-row { justify-content: center; }
.eyebrow { color: var(--accent-strong); font-weight: 650; font-size: 15px; text-transform: uppercase; letter-spacing: 0.08em; margin: 0 0 14px; }
h1 { font-size: clamp(2.3rem, 5.5vw, 3.9rem); margin: 0 0 20px; font-weight: 800; }
.lede { font-size: clamp(1.05rem, 2vw, 1.25rem); color: var(--text-2); margin: 0 auto 32px; max-width: 680px; }
.hero-points { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 22px; list-style: none; padding: 0; margin: 28px 0 0; color: var(--text-2); font-size: 15px; }
.hero-points li::before { content: "✓"; color: var(--accent); font-weight: 700; margin-right: 6px; }
.hero-shot { margin: 48px auto 0; }
.hero-shot img, .tour img { border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); background: var(--surface); }

/* Sections */
.section { padding: 88px 0; }
.section.alt { background: var(--bg-alt); }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.5rem); margin: 0 0 14px; font-weight: 750; }
.section-lede { color: var(--text-2); font-size: 1.1rem; max-width: 720px; margin: 0 0 40px; }
.fine-print { color: var(--text-3); font-size: 14px; margin: 20px 0 0; }

/* Steps */
.steps { list-style: none; padding: 0; margin: 0 0 48px; display: grid; gap: 20px; grid-template-columns: repeat(3, 1fr); }
.steps li { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; }
.step-num { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--accent); color: var(--on-accent); font-weight: 750; }
.steps h3 { font-size: 1.15rem; margin: 16px 0 8px; }
.steps p { margin: 0; color: var(--text-2); }

/* Query demo */
.query-demo {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 2fr);
  align-items: center;
  gap: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.demo-label { display: block; font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-3); font-weight: 650; margin-bottom: 10px; }
.demo-note { display: block; font-size: 14px; color: var(--text-3); margin-top: 10px; }
.query-in code { display: inline-block; font-size: 1.3rem; padding: 10px 16px; border-radius: 10px; background: var(--bg-alt); color: var(--text); border: 1px dashed var(--border); }
.query-arrow { font-size: 2rem; color: var(--accent); }
.query-out ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.query-out li { background: var(--accent-soft); color: var(--accent-strong); padding: 6px 12px; border-radius: 999px; font-weight: 600; font-size: 15px; }

/* Features */
.feature-grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); margin-top: 36px; }
.feature { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.feature h3 { font-size: 1.1rem; margin: 0 0 8px; }
.feature p { margin: 0; color: var(--text-2); font-size: 16px; }
.feature code { white-space: nowrap; }

/* Tour */
.tour { display: grid; gap: 56px; margin-top: 36px; }
.tour figure { margin: 0; }
.tour figcaption { margin-top: 14px; color: var(--text-2); text-align: center; }

/* Audience */
.audience { list-style: none; padding: 0; margin: 32px 0 0; display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); }
.audience li { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; color: var(--text-2); }
.audience strong { color: var(--text); display: block; }

/* Privacy */
.privacy { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: start; }
.privacy .section-lede { margin-bottom: 16px; }
.text-link { font-weight: 650; }
.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.checklist li { position: relative; padding: 16px 18px 16px 50px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text-2); }
.checklist li::before { content: "✓"; position: absolute; left: 18px; top: 15px; width: 22px; height: 22px; border-radius: 50%; background: var(--accent); color: var(--on-accent); display: grid; place-items: center; font-size: 13px; font-weight: 800; }

/* Limits */
.limits { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); }
.limits li { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; color: var(--text-2); }
.limits strong { color: var(--text); display: block; margin-bottom: 4px; }

/* FAQ */
.faq { margin-top: 28px; border-top: 1px solid var(--border); }
.faq details { border-bottom: 1px solid var(--border); }
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 20px 40px 20px 0;
  font-weight: 650;
  font-size: 1.08rem;
  position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 6px; top: 50%; translate: 0 -50%; font-size: 1.5rem; font-weight: 400; color: var(--accent); }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0 0 22px; color: var(--text-2); }
.faq-more { margin: 28px 0 0; color: var(--text-2); }

/* Final CTA */
.final-cta { padding: 96px 0; text-align: center; background: linear-gradient(160deg, var(--accent-soft), var(--bg) 70%); }
.final-cta img { margin: 0 auto 16px; width: 96px; height: 96px; }
.final-cta h2 { margin-bottom: 28px; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 28px 0; color: var(--text-3); font-size: 15px; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; align-items: center; }
.footer-inner p { margin: 0; }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 20px; list-style: none; margin: 0; padding: 0; }
.footer-links a { color: var(--text-2); }

/* Responsive */
@media (max-width: 900px) {
  .steps { grid-template-columns: 1fr; }
  .privacy { grid-template-columns: 1fr; gap: 24px; }
  .query-demo { grid-template-columns: 1fr; }
  .query-arrow { rotate: 90deg; justify-self: start; }
}
@media (max-width: 720px) {
  .nav-links { display: none; }
  .header-inner { justify-content: space-between; }
  .hero { padding-top: 48px; }
  .section { padding: 64px 0; }
}

@media (forced-colors: active) {
  .btn, .steps li, .feature, .checklist li, .limits li, .audience li, .query-demo { border: 1px solid CanvasText; }
}

/* ---------- Content pages (support, privacy policy) ---------- */
.nav-links a[aria-current="page"] { color: var(--text); font-weight: 650; }

.page-hero { padding: 64px 0 40px; background: radial-gradient(1000px 360px at 50% -140px, var(--accent-soft), transparent 70%); border-bottom: 1px solid var(--border); }
.page-hero h1 { font-size: clamp(2rem, 4.5vw, 3rem); margin: 0 0 12px; }
.page-hero .lede { margin: 0; max-width: 680px; }
.page-meta { color: var(--text-3); font-size: 15px; margin: 14px 0 0; }

.page-body { padding: 48px 0 88px; }
.page-grid { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 56px; align-items: start; }
.toc { position: sticky; top: 88px; font-size: 15px; }
.toc h2 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-3); margin: 0 0 10px; }
.toc ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.toc a { color: var(--text-2); text-decoration: none; }
.toc a:hover { color: var(--text); text-decoration: underline; }

.prose { max-width: 760px; }
.prose > section + section { margin-top: 56px; }
.prose h2 { font-size: clamp(1.5rem, 3vw, 1.9rem); margin: 0 0 14px; }
.prose h3 { font-size: 1.15rem; margin: 28px 0 8px; }
.prose p, .prose li { color: var(--text-2); }
.prose p { margin: 0 0 14px; }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 16px; }
.prose li + li { margin-top: 6px; }
.prose strong { color: var(--text); }
.prose kbd { font-family: var(--mono); font-size: 0.85em; border: 1px solid var(--border); border-bottom-width: 2px; border-radius: 5px; padding: 0.05em 0.4em; background: var(--surface); }
.prose .ui { font-weight: 650; color: var(--text); }
.prose .msg { display: block; font-family: var(--mono); font-size: 14px; background: var(--bg-alt); border-left: 3px solid var(--accent); padding: 10px 14px; border-radius: 0 8px 8px 0; margin: 4px 0 12px; color: var(--text); }

.table-wrap { overflow-x: auto; margin: 8px 0 20px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.prose table { width: 100%; border-collapse: collapse; font-size: 15px; }
.prose th, .prose td { text-align: left; vertical-align: top; padding: 12px 14px; border-bottom: 1px solid var(--border); color: var(--text-2); }
.prose th { color: var(--text); font-weight: 650; background: var(--bg-alt); }
.prose tr:last-child td { border-bottom: 0; }

.contact-card { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 24px; margin: 28px 0 0; max-width: 760px; }
.contact-card p { margin: 0; color: var(--text-2); }
.contact-card strong { display: block; color: var(--text); font-size: 1.1rem; }

.prose .faq { margin-top: 8px; }

/* Footer navigation shared by all pages */
.footer-links a[aria-current="page"] { color: var(--text); font-weight: 650; }

@media (max-width: 900px) {
  .page-grid { grid-template-columns: 1fr; gap: 28px; }
  .toc { position: static; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; }
}