/* The app's look (lib/ui/app_theme.dart): deep navy space, glass panels,
   cyan and violet accents. Dark only, like the app. */
:root {
  color-scheme: dark;
  --bg: #050914;
  --panel: #0a1222;
  --popup: #0f1a31;
  --popup-high: #16243f;
  --border: #1c2b41;
  --text: #e8f0f2;
  --muted: #8b9dc1;
  --accent: #4f8cff;
  --cyan: #39d7ff;
  --violet: #b47cff;
  --good: #3ddc97;
  --glass-sheen: rgba(180, 204, 255, 0.22);
  --glass-top: rgba(19, 35, 63, 0.54);
  --glass-bottom: rgba(10, 18, 34, 0.61);
  --glass-border: rgba(92, 134, 200, 0.25);
  --ease-out: cubic-bezier(0.33, 1, 0.68, 1);
  --ease-back: cubic-bezier(0.34, 1.56, 0.64, 1);
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--bg); }
body {
  margin: 0;
  min-height: 100vh;
  background: transparent; /* the sky canvas shows through; html has the base colour */
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--cyan); }
img { max-width: 100%; }

/* The sky (space.js) sits behind everything. */
canvas.sky {
  position: fixed; inset: 0;
  width: 100%; height: 100%;
  z-index: -1;
  pointer-events: none;
}

.glass {
  background:
    linear-gradient(to bottom, var(--glass-sheen) 0, var(--glass-top) 40px, var(--glass-bottom) 100%);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.gradient-text {
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* The app logo in its accent frame (lib/ui/widgets/app_logo.dart). */
.app-logo {
  --s: 48px;
  display: block;
  width: var(--s); height: var(--s);
  padding: calc(var(--s) * 2 / 48);
  background: var(--bg);
  border: calc(var(--s) * 1.2 / 48) solid rgba(79, 140, 255, 0.8);
  border-radius: calc(var(--s) * 13 / 48);
  flex: none;
}
.app-logo img {
  display: block; width: 100%; height: 100%;
  border-radius: calc(var(--s) * 9 / 48);
  object-fit: cover;
}

/* Document pages (privacy, terms, support) */
main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 16px 64px;
}
header { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
header .app-logo { --s: 44px; }
header .name { font-weight: 700; letter-spacing: 0.06em; }
header a.home { display: flex; align-items: center; gap: 12px; color: inherit; text-decoration: none; }
nav.lang { color: var(--muted); font-size: 14px; margin-bottom: 24px; }
h1 { font-size: 30px; line-height: 1.25; margin: 16px 0 4px; }
h2 { font-size: 20px; margin: 32px 0 8px; }
.updated { color: var(--muted); font-size: 14px; }
section.card {
  background:
    linear-gradient(to bottom, var(--glass-sheen) 0, var(--glass-top) 40px, var(--glass-bottom) 100%);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  padding: 4px 20px 12px;
  margin: 16px 0;
}
ul { padding-inline-start: 22px; }
code { color: var(--cyan); }
footer { color: var(--muted); font-size: 14px; margin-top: 48px; }
footer a { color: var(--muted); }

/* Landing page */
.landing main { max-width: none; padding: 0; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 18px 16px;
}
.topbar header { margin: 0; }
.topbar header .app-logo { --s: 36px; }

.lang-menu { position: relative; font-size: 14px; }
.lang-menu summary {
  display: flex; align-items: center; gap: 6px;
  list-style: none; cursor: pointer;
  padding: 6px 14px;
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  color: var(--text);
  background: var(--glass-top);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
.lang-menu summary::-webkit-details-marker { display: none; }
.lang-menu summary svg { width: 16px; height: 16px; color: var(--cyan); }
.lang-menu ul {
  position: absolute; inset-inline-end: 0; top: calc(100% + 6px);
  z-index: 10;
  margin: 0; padding: 6px;
  list-style: none;
  width: 240px;
  max-height: 70vh; overflow: auto;
  columns: 2; column-gap: 4px;
  background: var(--popup);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.5);
}
.lang-menu li a {
  display: block; padding: 5px 10px; border-radius: 8px;
  color: var(--text); text-decoration: none;
}
.lang-menu li a:hover { background: var(--popup-high); }
.lang-menu li a[aria-current] { color: var(--cyan); font-weight: 600; }

.hero {
  padding: 8px 0 72px;
  text-align: center;
}
.space-logo {
  --logo: clamp(110px, 42vw, 190px);
  position: relative;
  width: calc(var(--logo) * 1.9);
  height: calc(var(--logo) * 1.9);
  margin: 0 auto;
}
.space-logo canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
}
.space-logo .float {
  position: absolute;
  left: 50%; top: 50%;
  width: var(--logo); height: var(--logo);
  margin: calc(var(--logo) / -2) 0 0 calc(var(--logo) / -2);
  border-radius: calc(var(--logo) * 0.27);
}
.space-logo .app-logo { --s: var(--logo); }
.hero .app-name {
  display: inline-block;
  font-size: clamp(30px, 5vw, 40px);
  font-weight: 700;
  letter-spacing: 0.04em;
  margin: 4px 0 0;
}
.hero h1 {
  font-size: clamp(24px, 4.2vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 12px auto 14px;
  max-width: 820px;
}
.hero .lead {
  color: var(--muted);
  font-size: clamp(17px, 2.2vw, 19px);
  max-width: 680px;
  margin: 0 auto;
}
.stores {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 12px; margin: 32px 0 12px;
}
.store {
  display: inline-flex; align-items: center; gap: 10px;
  min-width: 196px;
  padding: 10px 22px;
  border-radius: 999px;
  background: var(--accent);
  color: #050914;
  text-decoration: none;
  line-height: 1.15;
  text-align: start;
  box-shadow: 0 6px 24px rgba(79, 140, 255, 0.35);
  transition: transform 0.2s var(--ease-out), box-shadow 0.2s var(--ease-out);
}
.store:hover { transform: translateY(-2px); box-shadow: 0 10px 32px rgba(57, 215, 255, 0.45); }
.store svg { width: 24px; height: 24px; flex: none; }
.store small { display: block; font-size: 11px; opacity: 0.8; }
.store strong { display: block; font-size: 18px; }
.hero .note { color: var(--muted); font-size: 14px; margin: 0; }

.chips {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 8px; margin: 28px 0 0; padding: 0; list-style: none;
}
.chips li {
  border: 1px solid var(--glass-border);
  background: var(--glass-top);
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 14px;
  color: var(--text);
}

.section { padding: 56px 0; }
.section h2 {
  font-size: clamp(24px, 3.4vw, 32px);
  line-height: 1.2;
  margin: 0 0 8px;
  text-align: center;
}
.section .sub { color: var(--muted); text-align: center; max-width: 640px; margin: 0 auto 36px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}
.feature { padding: 22px; }
.feature .ico { color: var(--cyan); margin-bottom: 12px; }
.feature .ico svg { width: 28px; height: 28px; display: block; }
.feature h3 { font-size: 18px; margin: 0 0 8px; }
.feature ul { margin: 0; padding-inline-start: 18px; color: var(--muted); font-size: 15px; }
.feature li + li { margin-top: 4px; }

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  counter-reset: step;
  padding: 0; list-style: none;
}
.steps li { counter-increment: step; text-align: center; padding: 0 8px; }
.steps li::before {
  content: counter(step);
  display: grid; place-items: center;
  width: 46px; height: 46px; margin: 0 auto 12px;
  border-radius: 50%;
  border: 1.5px solid var(--cyan);
  color: var(--cyan);
  font-weight: 700;
  box-shadow: 0 0 18px rgba(57, 215, 255, 0.3);
  background: var(--glass-bottom);
}
.steps h3 { margin: 0 0 6px; font-size: 18px; }
.steps p { margin: 0; color: var(--muted); font-size: 15px; }

.privacy-band {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
  text-align: center;
}
.privacy-band > div { padding: 20px; }
.privacy-band strong { display: block; font-size: 18px; color: var(--good); }
.privacy-band span { color: var(--muted); font-size: 15px; }

.cta { text-align: center; }
.cta .stores { margin-bottom: 0; }
.disclaimer { color: var(--muted); font-size: 14px; text-align: center; margin-top: 24px; }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0 44px;
  color: var(--muted);
  font-size: 14px;
  background: rgba(5, 9, 20, 0.6);
}
.site-footer .wrap {
  display: flex; flex-wrap: wrap; gap: 12px 24px;
  justify-content: space-between; align-items: center;
}
.site-footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--text); }

/* Entrance (welcome_page.dart _Appear): each piece fades in and rises over
   its share [from, to] of a 1.6 s entrance; the logo grows with a little
   overshoot, cards slide in from the side. Only with JS and motion on. */
@media (prefers-reduced-motion: no-preference) {
  .js [data-appear] {
    opacity: 0;
    transform: translateY(16px);
    transition:
      opacity calc((var(--to) - var(--from)) * 1.6s) var(--ease-out) calc(var(--from) * 1.6s),
      transform calc((var(--to) - var(--from)) * 1.6s) var(--ease-out) calc(var(--from) * 1.6s);
  }
  .js [data-appear="scale"] { transform: scale(0.6); transition-timing-function: var(--ease-out), var(--ease-back); }
  .js [data-appear="slide"] { transform: translateX(24px); }
  .js .in [data-appear], .js [data-appear].in { opacity: 1; transform: none; }
}

@media (max-width: 520px) {
  .hero { padding-bottom: 48px; }
  .store { width: 100%; max-width: 320px; justify-content: center; }
  .section { padding: 44px 0; }
}