/* Shared style for every FaceUnlock page. One night-blue look, always dark. */
:root {
  --bg: #07081a; --card: #0c1030; --raised: #121844;
  --fg: #eef0f5; --fg2: #a9b1d6; --muted: #7d86b3;
  --line: rgba(174, 188, 255, 0.10); --line-strong: rgba(174, 188, 255, 0.22);
  --accent: #aebcff;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 64px; background: var(--bg); }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 400 16px/1.6 "Inter", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
b, strong { font-weight: 500; color: var(--fg); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 24px; }
.icon { width: 16px; height: 16px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.5;
        stroke-linecap: round; stroke-linejoin: round; }
canvas.art { position: absolute; pointer-events: none; display: block; }

/* Navigation: clear over the hero, a bar once you scroll. */
nav {
  position: fixed; inset: 0 0 auto; z-index: 20; height: 56px; color: var(--fg);
  border-bottom: 1px solid transparent;
  transition: background-color 200ms var(--ease), border-color 200ms var(--ease);
}
nav.solid, body.plain nav {
  background: rgba(7, 8, 26, 0.78);
  backdrop-filter: saturate(160%) blur(16px); -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom-color: var(--line);
}
nav .wrap { display: flex; align-items: center; gap: 24px; height: 100%; }
nav .brand { display: flex; align-items: center; gap: 8px; color: inherit; font-weight: 500; font-size: 16px; margin-right: auto; }
nav .brand img { width: 24px; height: 24px; }
nav .brand:hover { text-decoration: none; }
nav .links { display: flex; gap: 24px; }
nav .links a { position: relative; color: inherit; font-size: 14px; opacity: 0.72; transition: opacity 150ms var(--ease); }
nav .links a:hover { opacity: 1; text-decoration: none; }
nav .links a::after { content: ""; position: absolute; left: 50%; bottom: -8px; width: 4px; height: 4px; margin-left: -2px;
                      border-radius: 50%; background: var(--accent); opacity: 0; transition: opacity 200ms var(--ease); }
nav .links a.current { opacity: 1; }
nav .links a.current::after { opacity: 1; }
@media (max-width: 720px) { nav .links { display: none; } }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 20px; border-radius: 999px; cursor: pointer;
  font: 500 15px/1 inherit; font-family: inherit;
  color: var(--fg); background: rgba(174, 188, 255, 0.08); border: 1px solid var(--line-strong);
  transition: background-color 150ms var(--ease), border-color 150ms var(--ease), transform 120ms var(--ease);
}
.btn:hover { text-decoration: none; background: rgba(174, 188, 255, 0.16); }
.btn:active { transform: scale(0.98); }
.btn.light { color: #07081a; background: #eef0f5; border-color: transparent; }
.btn.light:hover { background: #ffffff; }
.btn.small { height: 32px; padding: 0 14px; font-size: 13px; }
.btn.block { display: flex; width: 100%; }
nav .btn.small { color: #07081a; background: #eef0f5; border-color: transparent; }

/* Hero scene (also the short scenes on pricing and at the end of the home page) */
.hero {
  position: relative; min-height: max(640px, 100svh); overflow: hidden; color: var(--fg);
  background: linear-gradient(180deg, #07081a 0%, #0c1250 24%, #2238c8 34%, #14209a 44%, #07081a 78%);
  display: flex; flex-direction: column; justify-content: flex-end;
}
.hero canvas.scene { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero::after {
  content: ""; position: absolute; inset: auto 0 0; height: 48%;
  background: linear-gradient(180deg, rgba(7, 8, 26, 0) 0%, rgba(7, 8, 26, 0.72) 60%, #07081a 100%);
  pointer-events: none;
}
.hero .content { position: relative; z-index: 1; text-align: center; padding: 0 16px 80px; }
.hero .meta { margin: 0 0 16px; color: var(--fg2); font-size: 13px; font-variant-numeric: tabular-nums; }
.hero h1 { margin: 0 auto 20px; font-weight: 500; font-size: clamp(40px, 7.4vw, 72px); line-height: 1.04; letter-spacing: -0.03em; }
.hero .sub { margin: 0 auto 32px; max-width: 36rem; color: #c3c9e4; font-size: clamp(16px, 2.2vw, 19px); line-height: 1.55; }
.hero .actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero .fine { margin: 24px 0 0; color: var(--fg2); font-size: 13px; }
.hero.short { min-height: 440px; }
.hero.short .content { padding-bottom: 56px; }
.hero.short h1 { font-size: clamp(36px, 6vw, 56px); }
.hero.short .sub { margin-bottom: 0; }
.hero.cta { margin-top: 128px; min-height: 560px; }
.hero.cta h2 { font-size: clamp(36px, 6vw, 56px); letter-spacing: -0.03em; line-height: 1.06; margin: 0 0 16px; }
.hero.cta .content { padding-bottom: 96px; }
.hero.cta .sub { margin-bottom: 32px; }
.hero.cta::before { /* fade the top of the scene into the page */
  content: ""; position: absolute; inset: 0 0 auto; height: 30%; z-index: 1; pointer-events: none;
  background: linear-gradient(180deg, #07081a, rgba(7, 8, 26, 0));
}

/* Headings: white, then lavender, like the hero. */
h1 span, h2 span { color: var(--accent); }
h2 { font-weight: 500; font-size: clamp(30px, 4.4vw, 44px); line-height: 1.1; letter-spacing: -0.02em; margin: 0 0 12px; }
h3 { font-weight: 500; font-size: 16px; line-height: 1.4; margin: 0 0 4px; }
p { margin: 0 0 12px; }
.lede { color: var(--fg2); font-size: 17px; max-width: 40rem; margin-bottom: 40px; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.center { text-align: center; }

/* Sections sit under a faint cobalt glow, so the page reads as one night. */
main { position: relative; z-index: 0; }
section { position: relative; padding: 128px 0 0; }
section::before {
  content: ""; position: absolute; z-index: -1; left: 50%; top: 40px; width: min(1200px, 100vw); height: 360px; transform: translateX(-50%);
  background: radial-gradient(ellipse 50% 50% at 50% 30%, rgba(34, 56, 200, 0.16), rgba(34, 56, 200, 0) 70%);
  pointer-events: none;
}

/* Cards */
.card {
  position: relative; overflow: hidden; isolation: isolate;
  background: linear-gradient(180deg, rgba(18, 24, 68, 0.7), rgba(12, 16, 48, 0.7));
  border: 1px solid var(--line); border-radius: 16px; padding: 24px;
  transition: border-color 150ms var(--ease);
}
.card:hover { border-color: var(--line-strong); }
.card > canvas.art { inset: 0; width: 100%; height: 100%; z-index: -1; opacity: 0.55; transition: opacity 150ms var(--ease); }
.card:hover > canvas.art { opacity: 0.85; }
.card p { color: var(--fg2); font-size: 15px; margin: 0; }

/* Steps, each with a dotted picture that prints in. */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.steps .card { padding: 0; }
.steps .pic { position: relative; height: 160px; border-bottom: 1px solid var(--line);
              background: radial-gradient(ellipse 60% 70% at 50% 60%, rgba(34, 56, 200, 0.28), rgba(34, 56, 200, 0) 70%); }
.steps .pic canvas.art { inset: 0; width: 100%; height: 100%; }
.steps .text { padding: 20px 24px 24px; }
.steps .num { display: block; margin-bottom: 8px; color: var(--accent); font: 400 12px/16px var(--mono); }
@media (max-width: 720px) { .steps { grid-template-columns: 1fr; } .steps .pic { height: 128px; } }

/* Features: a Free panel and a Premium panel. */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.split .card { padding: 28px 28px 32px; }
.split .card.premium { border-color: rgba(174, 188, 255, 0.35); padding-bottom: 72px; }
.split .card.premium > canvas.art { opacity: 0.7; }
.split .head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.split .head h3 { font-size: 20px; margin: 0; }
.split .head span { color: var(--muted); font-size: 13px; }
.split .premium .head span { color: var(--accent); }
.features { list-style: none; margin: 0; padding: 0; }
.features li { display: flex; gap: 16px; padding: 20px 0 0; }
.features .mark { flex: none; display: grid; place-items: center; width: 32px; height: 32px; border-radius: 8px;
                  background: rgba(174, 188, 255, 0.08); color: var(--fg2); }
.premium .features .mark { background: rgba(174, 188, 255, 0.14); color: var(--accent); }
.features span:not(.mark) { color: var(--fg2); font-size: 15px; }
.features.two { display: grid; grid-template-columns: 1fr 1fr; gap: 0 40px; }
.features-card { padding: 28px 28px 8px; }
.features.two li { padding: 0 0 20px; }
@media (max-width: 720px) { .split, .features.two { grid-template-columns: 1fr; } }

/* Safety: one panel, a horizon of dots along its bottom. */
.panel { position: relative; overflow: hidden; isolation: isolate; border: 1px solid var(--line); border-radius: 20px;
         background: linear-gradient(180deg, rgba(12, 16, 48, 0.9), rgba(16, 24, 90, 0.6)); padding: 32px 32px 128px; }
.panel > canvas.art { inset: auto 0 0; width: 100%; height: 220px; z-index: -1; }
.checks { display: grid; grid-template-columns: 1fr 1fr; gap: 0 48px; margin: 0; padding: 0; list-style: none; }
.checks li { display: flex; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.checks li .mark { flex: none; display: grid; place-items: center; width: 28px; height: 28px; border-radius: 8px;
                   background: rgba(174, 188, 255, 0.1); color: var(--accent); }
.checks li span { color: var(--fg2); font-size: 15px; }
@media (max-width: 640px) { .checks { grid-template-columns: 1fr; } .panel { padding: 24px 20px 112px; } }

/* Install: a dark Mac window. */
.window { border: 1px solid var(--line-strong); border-radius: 16px; overflow: hidden;
          background: linear-gradient(180deg, rgba(18, 24, 68, 0.85), rgba(10, 13, 40, 0.92));
          box-shadow: 0 24px 64px rgba(2, 3, 12, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.06); }
.titlebar { position: relative; height: 40px; display: flex; align-items: center; gap: 8px; padding: 0 16px;
            border-bottom: 1px solid var(--line); background: rgba(7, 8, 26, 0.4); }
.titlebar i { width: 12px; height: 12px; border-radius: 50%; background: rgba(174, 188, 255, 0.18); }
.titlebar span { position: absolute; left: 0; right: 0; text-align: center; color: var(--muted); font-size: 13px; pointer-events: none; }
.window .inner { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 40px; padding: 32px; }
.install-steps { counter-reset: s; list-style: none; padding: 0; margin: 0 0 24px; }
.install-steps > li { counter-increment: s; display: flex; gap: 16px; padding: 12px 0; border-bottom: 1px solid var(--line); color: var(--fg2); }
.install-steps > li::before { content: counter(s, decimal-leading-zero); flex: none; color: var(--accent); font: 400 12px/26px var(--mono); }
.note { display: flex; gap: 12px; margin: 0 0 24px; padding: 16px; border-radius: 12px; border: 1px solid var(--line);
        background: rgba(7, 8, 26, 0.4); color: var(--fg2); font-size: 14px; }
.note .icon { margin-top: 3px; color: var(--accent); }
@media (max-width: 860px) { .window .inner { grid-template-columns: minmax(0, 1fr); gap: 16px; padding: 24px 20px; } }

/* Step 2 chooser: System Settings or Terminal */
.install-steps > li.key { color: var(--fg); }
.choose { margin: 0 0 16px; padding: 16px; border: 1px solid var(--line-strong); border-radius: 12px; background: rgba(7, 8, 26, 0.45); }
.choose .label { margin: 0 0 12px; color: var(--accent); font: 400 12px/16px var(--mono); }
.seg { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; padding: 4px; margin: 0 0 16px; border-radius: 10px;
       background: rgba(174, 188, 255, 0.06); border: 1px solid var(--line); }
.seg button { height: 32px; border: 0; border-radius: 8px; cursor: pointer; background: transparent; color: var(--fg2);
              font: 500 13px/1 inherit; font-family: inherit; transition: background-color 150ms var(--ease), color 150ms var(--ease); }
.seg button:hover { color: var(--fg); }
.seg button[aria-selected="true"] { background: var(--raised); color: var(--fg); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08); }
.way ol { counter-reset: w; list-style: none; margin: 0; padding: 0; }
.way li { counter-increment: w; display: flex; gap: 12px; padding: 6px 0; color: var(--fg2); font-size: 14px; }
.way li > div { min-width: 0; flex: 1; }
.way li::before { content: counter(w); flex: none; width: 20px; height: 20px; margin-top: 1px; border-radius: 50%; display: grid; place-items: center;
                  background: rgba(174, 188, 255, 0.12); color: var(--accent); font: 400 11px/1 var(--mono); }
.way pre { margin: 8px 0 0; }
.way pre code { white-space: pre-wrap; word-break: break-all; }
.way .hint { margin: 8px 0 0 32px; color: var(--muted); font-size: 13px; }
.way:not([hidden]) { animation: open 220ms var(--ease); }
kbd { font: 12px/1 var(--mono); padding: 2px 6px; border-radius: 4px; border: 1px solid var(--line-strong); border-bottom-width: 2px;
      background: var(--raised); color: var(--fg); white-space: nowrap; }

/* Dropdowns */
details { border-bottom: 1px solid var(--line); }
details > summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 16px 0; font-weight: 500; font-size: 15px; transition: color 150ms var(--ease);
}
details > summary::-webkit-details-marker { display: none; }
details > summary .icon { color: var(--muted); transition: transform 200ms var(--ease), color 200ms var(--ease); }
details[open] > summary .icon { transform: rotate(180deg); color: var(--accent); }
details > summary:hover { color: var(--accent); }
details .body { padding: 0 0 20px; color: var(--fg2); font-size: 15px; }
details[open] .body { animation: open 260ms var(--ease); }
@keyframes open { from { opacity: 0; transform: translateY(-6px); } }
.more { margin-top: 24px; border-top: 1px solid var(--line); }
.window .more { margin-top: 0; }

/* Questions: two columns of dropdowns on wide screens. */
.faq { display: grid; grid-template-columns: 1fr 1fr; gap: 0 48px; }
.faq .col { border-top: 1px solid var(--line); }
.faq.one { grid-template-columns: 1fr; max-width: 760px; }
@media (max-width: 860px) { .faq { grid-template-columns: 1fr; } .faq .col + .col { border-top: 0; } }

ul.plain { padding-left: 20px; margin: 0 0 12px; }
ul.plain li, ol.plain li { margin: 8px 0; }
table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 0 0 16px; }
th, td { text-align: left; padding: 12px 8px 12px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 400; }
td:first-child { color: var(--fg); white-space: nowrap; padding-right: 16px; }
@media (max-width: 520px) { td:first-child { white-space: normal; } }
code { font: 13px/1.5 var(--mono); background: var(--raised); border-radius: 4px; padding: 2px 6px; color: var(--fg); }
pre { position: relative; margin: 0 0 12px; padding: 12px 84px 12px 16px; overflow-x: auto;
      background: rgba(7, 8, 26, 0.6); border: 1px solid var(--line); border-radius: 10px; }
pre code { padding: 0; background: none; }
.copy { position: absolute; top: 8px; right: 8px; height: 28px; padding: 0 10px; border-radius: 6px; cursor: pointer;
        font: 400 12px/1 inherit; font-family: inherit; color: var(--fg2); background: var(--raised); border: 1px solid var(--line);
        transition: color 150ms var(--ease); }
.copy:hover { color: var(--fg); }

footer { padding: 32px 0 48px; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
main + footer { margin-top: 128px; }
footer p { margin: 4px 0; }
footer a { color: var(--fg2); }

/* Pricing */
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; max-width: 800px; margin: 48px auto 16px; }
.plan { display: flex; flex-direction: column; padding: 28px; }
.plan h2 { font-size: 18px; letter-spacing: 0; margin: 0; }
.plan.premium { border-color: rgba(174, 188, 255, 0.35); }
.plan .price { color: var(--fg); margin: 12px 0 0; font-size: 32px; line-height: 1; font-weight: 500; font-variant-numeric: tabular-nums; }
.plan .price small { font-size: 14px; font-weight: 400; color: var(--muted); }
.plan .price .was { font-size: 20px; color: var(--muted); margin-right: 4px; }
.plan .sale { margin: 12px 0 0; color: var(--accent); font-size: 13px; }
.plan ul { list-style: none; padding: 0; margin: 24px 0; flex: 1; }
.plan li { display: flex; gap: 12px; margin: 12px 0; font-size: 15px; }
.plan li .icon { margin-top: 4px; color: var(--accent); }
.plan li.no { color: var(--muted); }
.plan li.no .icon { color: var(--muted); }
@media (max-width: 640px) { .plans { grid-template-columns: 1fr; } }

/* Thanks */
.thanks { position: relative; max-width: 620px; padding-top: 128px; text-align: center; }
.thanks img { width: 80px; height: 80px; }
.thanks h1 { font-weight: 500; font-size: clamp(32px, 6vw, 44px); letter-spacing: -0.02em; margin: 16px 0 8px; }
.thanks p { color: var(--fg2); }
.thanks .key { position: relative; isolation: isolate; display: flex; gap: 8px; align-items: center; justify-content: center; flex-wrap: wrap; margin: 16px 0; padding: 40px 0; }
.thanks .key canvas.art { left: 0; top: 0; width: 100%; height: 100%; z-index: -1; }
.thanks .key code { font-size: 16px; padding: 12px 16px; border-radius: 10px; border: 1px solid var(--line-strong); background: rgba(7, 8, 26, 0.85); overflow-wrap: anywhere; }
.thanks ol { text-align: left; display: inline-block; margin: 8px 0 24px; padding-left: 20px; color: var(--fg2); }
.thanks li { margin: 8px 0; }

/* Motion: one entrance on load, sections rise once as they come in. */
.rise { animation: rise 500ms var(--ease) both; animation-delay: calc(var(--i, 0) * 50ms + 150ms); }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } }
.reveal { opacity: 0; transform: translateY(12px); transition: opacity 500ms var(--ease), transform 500ms var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal .stagger { opacity: 0; transform: translateY(8px); }
.reveal.in .stagger { opacity: 1; transform: none;
  transition: opacity 400ms var(--ease) var(--d, 0ms), transform 400ms var(--ease) var(--d, 0ms), border-color 150ms var(--ease); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .rise, details[open] .body, .way:not([hidden]) { animation: none; }
  .reveal, .reveal .stagger { opacity: 1; transform: none; transition: none; }
}