/* lockmq site — one stylesheet, no build step, no external resources.
   Palette taken from assets/logo.svg: orange body, teal shackle. */

:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --bg-glow: rgba(249, 115, 22, 0.12);
  --bg-glow-2: rgba(20, 184, 166, 0.10);
  --surface: #f8fafc;
  --surface-2: #f1f5f9;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --link: #c2410c;
  --link-hover: #9a3412;
  --accent: #ea580c;
  --accent-2: #14b8a6;
  --key: #0f766e;
  --focus: #ea580c;
  --term-bg: #0f172a;
  --term-bar: #1e293b;
  --term-text: #e2e8f0;
  --term-border: #1e293b;
  --limit-bg: #fffbeb;
  --limit-border: #b45309;
  --yes: #0f766e;
  --yes-bg: #ccfbf1;
  --no: #b91c1c;
  --no-bg: #fee2e2;
  --header-bg: rgba(255, 255, 255, 0.82);
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.06), 0 8px 24px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 24px 60px -12px rgba(194, 65, 12, 0.35);
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "DejaVu Sans Mono", "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --radius: 12px;
  --max: 70rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1120;
    --bg-glow: rgba(249, 115, 22, 0.18);
    --bg-glow-2: rgba(45, 212, 191, 0.10);
    --surface: #111a2e;
    --surface-2: #1e293b;
    --text: #f1f5f9;
    --muted: #94a3b8;
    --border: #253047;
    --link: #fdba74;
    --link-hover: #fed7aa;
    --accent: #fb923c;
    --accent-2: #5eead4;
    --key: #5eead4;
    --focus: #5eead4;
    --term-bg: #020617;
    --term-bar: #0f172a;
    --term-text: #e2e8f0;
    --term-border: #253047;
    --limit-bg: #1f1a10;
    --limit-border: #f59e0b;
    --yes: #5eead4;
    --yes-bg: rgba(45, 212, 191, 0.12);
    --no: #fca5a5;
    --no-bg: rgba(248, 113, 113, 0.12);
    --header-bg: rgba(11, 17, 32, 0.8);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 30px 80px -20px rgba(249, 115, 22, 0.4);
  }
}

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

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

body {
  margin: 0;
  background:
    radial-gradient(60rem 30rem at 15% -10rem, var(--bg-glow), transparent 70%),
    radial-gradient(50rem 26rem at 90% -6rem, var(--bg-glow-2), transparent 70%),
    var(--bg);
  background-repeat: no-repeat;
  color: var(--text);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  overflow-wrap: break-word;
}

img, svg { max-width: 100%; height: auto; }

a { color: var(--link); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { color: var(--link-hover); text-decoration-thickness: 2px; }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  z-index: 20;
  padding: 0.5rem 1rem;
  background: var(--text);
  color: var(--bg);
  border-radius: var(--radius);
  font-weight: 600;
}
.skip-link:focus { top: 0.75rem; color: var(--bg); }

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

.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header and navigation */
.site-header {
  z-index: 10;
  border-bottom: 1px solid var(--border);
  background: var(--header-bg);
  -webkit-backdrop-filter: saturate(1.6) blur(12px);
  backdrop-filter: saturate(1.6) blur(12px);
}
.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  padding-top: 0.65rem;
  padding-bottom: 0.65rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text);
  text-decoration: none;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}
.brand .wordmark span { color: var(--accent); }
.brand:hover { color: var(--text); }
.brand img { width: 30px; height: 30px; }

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-nav li + li { margin-top: 0; }
.site-nav a {
  display: inline-block;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}
.site-nav a:hover { color: var(--text); background: var(--surface-2); }
.site-nav a[aria-current="page"] {
  color: var(--text);
  background: var(--surface-2);
  box-shadow: inset 0 0 0 1px var(--border);
}

/* Main content */
main { display: block; padding-bottom: 4rem; }
main > .wrap > h1:first-child { margin-top: 3rem; }

h1, h2, h3 { line-height: 1.2; letter-spacing: -0.02em; }
[id] { scroll-margin-top: 5rem; }
h1 { font-size: clamp(2rem, 6vw, 3rem); margin: 2rem 0 1rem; font-weight: 800; }
h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  margin: 4.5rem 0 1rem;
  font-weight: 750;
}
h2::before {
  content: "";
  display: block;
  width: 2.5rem;
  height: 4px;
  margin-bottom: 0.9rem;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
h3 { font-size: 1.2rem; margin: 1.75rem 0 0.5rem; }

/* Section links (assets/anchors.js) */
.has-anchor { cursor: pointer; }
.heading-anchor {
  margin-left: 0.4em;
  color: var(--muted);
  font-weight: 600;
  text-decoration: none;
  opacity: 0;
  transition: opacity 0.15s ease;
}
.has-anchor:hover .heading-anchor,
.heading-anchor:focus-visible { opacity: 1; color: var(--link); }
@media (hover: none) { .heading-anchor { opacity: 0.6; } }
.anchor-toast {
  position: fixed;
  left: 50%;
  bottom: 1.5rem;
  z-index: 30;
  transform: translateX(-50%);
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius);
  background: var(--text);
  color: var(--bg);
  font-size: 0.9rem;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.anchor-toast:empty { display: none; }
.anchor-toast.is-visible { opacity: 1; }

.prose { max-width: 46rem; }
.lead { font-size: 1.2rem; color: var(--muted); }

p, ul, ol { margin: 0 0 1rem; }
li + li { margin-top: 0.35rem; }

code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 0.05em 0.35em;
}

pre {
  margin: 0 0 1.25rem;
  padding: 1rem 1.15rem;
  max-width: 100%;
  overflow-x: auto;
  background: var(--term-bg);
  color: var(--term-text);
  border: 1px solid var(--term-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  font-family: var(--mono);
  font-size: 0.85rem;
  line-height: 1.55;
  tab-size: 4;
}
pre code {
  background: none;
  border: 0;
  padding: 0;
  font-size: inherit;
  color: inherit;
}
pre:focus-visible { outline-offset: 3px; }
pre.diagram { line-height: 1.25; }
.cmt { color: #94a3b8; }

/* A terminal window: a title bar with three dots above the code. */
pre.term {
  position: relative;
  padding-top: 2.6rem;
  background:
    radial-gradient(circle at 1.1rem 0.95rem, #f87171 0.3rem, transparent 0.32rem),
    radial-gradient(circle at 2rem 0.95rem, #fbbf24 0.3rem, transparent 0.32rem),
    radial-gradient(circle at 2.9rem 0.95rem, #34d399 0.3rem, transparent 0.32rem),
    linear-gradient(var(--term-bar), var(--term-bar)) top / 100% 1.9rem no-repeat,
    var(--term-bg);
  background-repeat: no-repeat;
  background-attachment: local;
}

figure { margin: 0 0 1.5rem; }
figcaption { color: var(--muted); font-size: 0.95rem; margin-top: 0.75rem; }

blockquote {
  margin: 0 0 1rem;
  padding: 0.75rem 1.25rem;
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--surface);
  color: var(--text);
  font-size: 1.1rem;
  font-weight: 500;
}
blockquote p { margin: 0; }

/* Hero */
.hero {
  padding: 4.5rem 0 1rem;
  text-align: center;
}
.hero h1 {
  margin: 1.25rem auto 1.25rem;
  font-size: clamp(2.3rem, 7vw, 4rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
}
.hero h1 .key {
  color: var(--key);
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero .lead {
  max-width: 40rem;
  margin: 0 auto 1rem;
  font-size: clamp(1.15rem, 2.4vw, 1.35rem);
}
.hero .intro {
  max-width: 44rem;
  margin: 0 auto;
  color: var(--muted);
}
.hero .actions, .hero .facts { justify-content: center; }

.eyebrow { margin: 0; }
.eyebrow a {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.25rem 0.85rem 0.25rem 0.3rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 0.9rem;
  text-decoration: none;
}
.eyebrow a:hover { color: var(--text); border-color: var(--accent); }
.badge {
  padding: 0.05rem 0.55rem;
  border-radius: 999px;
  background: linear-gradient(90deg, #c2410c, #9a3412);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.8rem;
}

.facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}
.facts li {
  margin: 0;
  padding: 0.2rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  font-size: 0.875rem;
  color: var(--muted);
}

.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 2rem 0 1.5rem; }
.button {
  display: inline-block;
  padding: 0.7rem 1.3rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  background: var(--surface);
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}
.button:hover { color: var(--text); border-color: var(--accent); }
.button.primary {
  background: linear-gradient(135deg, #c2410c, #9a3412);
  border-color: transparent;
  color: #ffffff;
  box-shadow: 0 8px 20px -6px rgba(194, 65, 12, 0.55);
}
.button.primary:hover { color: #ffffff; box-shadow: 0 10px 26px -6px rgba(194, 65, 12, 0.7); }

.notice {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-size: 0.95rem;
}

/* Demo */
.demo-section { margin-top: 2.5rem; }
/* The animated SVG breaks out of the text column: as wide as the window
   allows (94vw, at most its 1200px drawing), and never taller than the
   window minus the header, so it is always seen whole. */
figure.demo {
  position: relative;
  left: 50%;
  width: min(94vw, 1200px, calc((100vh - 6rem) * 1200 / 640));
  width: min(94vw, 1200px, calc((100svh - 6rem) * 1200 / 640));
  margin: 0 0 1.5rem;
  transform: translateX(-50%);
}
.demo-frame {
  border-radius: var(--radius);
  background: var(--term-bg);
  box-shadow: var(--shadow-lg);
}
figure.demo img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 640;
  border-radius: var(--radius);
}
.demo-hint { display: none; }
figure.demo figcaption { max-width: 52rem; margin: 1rem auto 0; text-align: center; }

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15.5rem), 1fr));
  gap: 1rem;
  margin: 1.5rem 0 1rem;
  padding: 0;
  list-style: none;
}
.cards > li {
  margin: 0;
  padding: 1.25rem 1.25rem 1.3rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: border-color 0.15s, transform 0.15s;
}
.cards > li:hover { border-color: var(--accent); }
.cards .icon {
  display: inline-grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 0.75rem;
  border-radius: 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-size: 1.25rem;
  line-height: 1;
}
.cards h3 { margin-top: 0; font-size: 1.1rem; }
.cards p { margin: 0; color: var(--muted); font-size: 0.975rem; }

/* The lock family: the current product's card is marked. */
.cards.family > li { position: relative; }
.cards.family a { font-family: var(--mono); font-weight: 700; }
.cards.family > li[aria-current] { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), var(--shadow); }
.cards.family .here {
  display: inline-block;
  margin-left: 0.5rem;
  padding: 0.05rem 0.5rem;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.75rem;
  font-weight: 600;
  vertical-align: 0.15em;
}
.site-footer .family-line { margin-top: 0.5rem; }

/* Tables */
.table-wrap {
  max-width: 100%;
  overflow-x: auto;
  margin: 0 0 1.25rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  /* Scroll hint: an edge shadow appears on the side that has more content. */
  background:
    linear-gradient(to right, var(--bg) 30%, transparent) left / 2rem 100% no-repeat local,
    linear-gradient(to left, var(--bg) 30%, transparent) right / 2rem 100% no-repeat local,
    radial-gradient(farthest-side at 0 50%, rgba(0,0,0,.22), transparent) left / 0.75rem 100% no-repeat scroll,
    radial-gradient(farthest-side at 100% 50%, rgba(0,0,0,.22), transparent) right / 0.75rem 100% no-repeat scroll,
    var(--bg);
}
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
caption {
  text-align: left;
  padding: 0.7rem 0.9rem;
  font-weight: 600;
  color: var(--muted);
  caption-side: top;
}
th, td {
  padding: 0.6rem 0.9rem;
  text-align: left;
  vertical-align: top;
  border-top: 1px solid var(--border);
}
thead th { background: var(--surface-2); border-top: 0; }
tbody tr:hover { background: var(--surface); }
td.yes, td.no { white-space: nowrap; }
td.yes::before, td.no::before {
  display: inline-grid;
  place-items: center;
  width: 1.35rem;
  height: 1.35rem;
  margin-right: 0.45rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 800;
  vertical-align: -0.1em;
}
td.yes { color: var(--yes); font-weight: 600; }
td.yes::before { content: "✓"; background: var(--yes-bg); }
td.no { color: var(--no); font-weight: 600; }
td.no::before { content: "✕"; background: var(--no-bg); }
.engines td, .engines th { min-width: 9rem; }
.engines td:first-child, .engines th:first-child { min-width: 0; }

/* Limits: kept prominent */
.limits {
  margin: 3rem 0 2rem;
  padding: 0.25rem 1.25rem 1rem;
  background: var(--limit-bg);
  border: 1px solid var(--border);
  border-left: 5px solid var(--limit-border);
  border-radius: var(--radius);
}
.limits > h2 { margin-top: 1.25rem; }
.limits > h2::before { background: var(--limit-border); }

.steps { padding-left: 1.4rem; }
.steps > li { padding-left: 0.25rem; }
.steps > li + li { margin-top: 0.75rem; }

.more {
  padding: 1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.more ul { margin: 0; }

/* FAQ */
.faq h2 { font-size: 1.3rem; margin-top: 2.5rem; }
.faq h2::before { display: none; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-size: 0.95rem;
}
.site-footer .wrap { padding-top: 1.75rem; padding-bottom: 2.25rem; }
.site-footer ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin: 0 0 0.75rem;
  padding: 0;
  list-style: none;
}
.site-footer li + li { margin-top: 0; }
.site-footer p { margin: 0; }
/* The footer's inline links stand alone, not in running text: a taller
   line gives them a 44px tap target too. */
.site-footer p a { display: inline-block; padding: 0.75rem 0; line-height: 1.4; }

@media (min-width: 48rem) {
  .site-header { position: sticky; top: 0; }
  .wrap { padding: 0 1.5rem; }
  pre { font-size: 0.9rem; }
}

/* Phones: brand on the first row, the navigation on a second row that
   scrolls sideways (no scrollbar, a fade on the right edge); anchors.js
   scrolls the current page's link into view. */
@media (max-width: 47.99rem) {
  .site-header .wrap { row-gap: 0; padding-top: 0.25rem; padding-bottom: 0.25rem; }
  .site-nav { width: calc(100% + 2rem); margin: 0 -1rem; }
  .site-nav ul {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding: 0 2.5rem 0 1rem;
    scrollbar-width: none;
    -webkit-mask-image: linear-gradient(to right, #000 calc(100% - 2.5rem), transparent);
    mask-image: linear-gradient(to right, #000 calc(100% - 2.5rem), transparent);
  }
  .site-nav ul::-webkit-scrollbar { display: none; }
  .site-nav li { flex: none; }
  .site-nav a { white-space: nowrap; }
}

@media (max-width: 40rem) {
  .hero { padding-top: 2.5rem; }
  .hero h1 br { display: none; }
  h2 { margin-top: 3.25rem; }

  /* Scaled to a phone, the demo's terminal text would be 3px high: keep
     it at a readable 900px and let it scroll sideways inside its frame. */
  figure.demo { left: 0; width: 100%; transform: none; }
  .demo-frame { overflow-x: auto; overscroll-behavior-x: contain; }
  figure.demo img { width: 56.25rem; max-width: none; }
  .demo-hint { display: block; margin: 0.5rem 0 0; color: var(--muted); font-size: 0.9rem; text-align: center; }

  /* Tables: tighter cells so the yes/no columns fit beside the labels. */
  th, td { padding: 0.55rem 0.6rem; }
  td.yes::before, td.no::before { margin-right: 0.3rem; }
}

/* Every link and control that is not inside a sentence gets a tap target
   of at least 44 x 44 px; not tied to (pointer: coarse), which hybrid
   devices do not always report. */
.brand, .site-nav a, .eyebrow a, .site-footer li a, .skip-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}
.site-nav a { padding: 0 0.85rem; }
.site-footer ul { gap: 0 1.25rem; }
.heading-anchor {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  margin: -0.75rem 0 -0.75rem 0.1em;
  vertical-align: middle;
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
  .button:hover, .cards > li:hover { transform: translateY(-2px); }
}

@media print {
  .site-header { position: static; }
  .site-nav, .skip-link, .actions { display: none; }
  pre { white-space: pre-wrap; }
}