:root {
  --bg: #0b0a1a;
  --bg-2: #141130;
  --surface: rgb(255 255 255 / 0.05);
  --surface-hover: rgb(255 255 255 / 0.08);
  --border: rgb(255 255 255 / 0.1);
  --text: #f1eeff;
  --text-muted: #a7a2c6;
  --accent: #6b5bff;
  --accent-hover: #7d6fff;
  --moon: #ffe591;
  --radius: 18px;
  --max: 1120px;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(1200px 600px at 80% -100px, rgb(107 91 255 / 0.28), transparent 60%),
    radial-gradient(900px 500px at -10% 400px, rgb(118 96 226 / 0.16), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  color: var(--text);
  font:
    16px/1.6 "Segoe UI Variable Text",
    "Segoe UI",
    system-ui,
    -apple-system,
    "Helvetica Neue",
    Arial,
    sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* A few fixed stars; no animation, so it costs nothing on old PCs. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 18%, rgb(255 255 255 / 0.7), transparent),
    radial-gradient(1px 1px at 28% 64%, rgb(255 255 255 / 0.5), transparent),
    radial-gradient(1.5px 1.5px at 46% 12%, rgb(255 255 255 / 0.6), transparent),
    radial-gradient(1px 1px at 63% 42%, rgb(255 255 255 / 0.45), transparent),
    radial-gradient(1.5px 1.5px at 78% 74%, rgb(255 255 255 / 0.55), transparent),
    radial-gradient(1px 1px at 90% 28%, rgb(255 255 255 / 0.5), transparent),
    radial-gradient(1px 1px at 8% 86%, rgb(255 255 255 / 0.4), transparent),
    radial-gradient(1.5px 1.5px at 54% 88%, rgb(255 255 255 / 0.45), transparent);
  pointer-events: none;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
}

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

/* Header */

.top {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  background: rgb(11 10 26 / 0.6);
}

.top .wrap {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  text-decoration: none;
}

.brand img {
  width: 32px;
  height: 32px;
}

.nav {
  display: flex;
  gap: 20px;
  margin-left: auto;
  font-size: 15px;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 150ms;
}

.nav a:hover {
  color: var(--text);
}

.lang {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-muted);
  font-size: 14px;
  text-decoration: none;
}

.lang:hover {
  background: var(--surface-hover);
  color: var(--text);
}

/* Hero */

.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  align-items: center;
  gap: 48px;
  padding: 72px 0 64px;
}

.badge {
  display: inline-block;
  margin-bottom: 18px;
  padding: 5px 12px;
  border: 1px solid rgb(255 229 145 / 0.35);
  border-radius: 999px;
  background: rgb(255 229 145 / 0.08);
  color: var(--moon);
  font-size: 13px;
  font-weight: 600;
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(38px, 6vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

h1 span {
  background: linear-gradient(90deg, #cdbfff, #8f7dff 60%, #ffe591);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  max-width: 560px;
  margin: 0 0 28px;
  color: var(--text-muted);
  font-size: 19px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 50px;
  padding: 0 24px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition:
    background 150ms,
    transform 150ms;
}

.button:hover {
  background: var(--surface-hover);
}

.button.primary {
  border-color: transparent;
  background: var(--accent);
  box-shadow: 0 10px 30px -10px rgb(107 91 255 / 0.8);
  color: #fff;
}

.button.primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}

.button svg {
  width: 20px;
  height: 20px;
  flex: none;
}

.note {
  margin: 14px 0 0;
  color: var(--text-muted);
  font-size: 14px;
}

.note a {
  color: var(--text);
}

.hero-art {
  position: relative;
  display: grid;
  place-items: center;
}

.hero-art::before {
  content: "";
  position: absolute;
  width: 70%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgb(255 233 168 / 0.35), transparent 65%);
  filter: blur(10px);
}

.hero-art img {
  position: relative;
  width: min(100%, 380px);
  filter: drop-shadow(0 30px 60px rgb(36 26 61 / 0.6));
}

/* Sections */

section {
  padding: 56px 0;
}

h2 {
  margin: 0 0 10px;
  font-size: clamp(28px, 4vw, 38px);
  letter-spacing: -0.01em;
}

.section-lead {
  max-width: 640px;
  margin: 0 0 32px;
  color: var(--text-muted);
  font-size: 17px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.card {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.card .icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 14px;
  border-radius: 12px;
  background: rgb(107 91 255 / 0.18);
  color: #b9adff;
}

.card .icon svg {
  width: 22px;
  height: 22px;
}

.card h3 {
  margin: 0 0 6px;
  font-size: 17px;
}

.card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 15px;
}

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.features ul {
  margin: 0;
  padding-left: 18px;
  color: var(--text-muted);
  font-size: 15px;
}

.features li + li {
  margin-top: 6px;
}

.features li::marker {
  color: var(--accent-hover);
}

/* Download */

.download {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.platform {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.platform h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 20px;
}

.platform h3 svg {
  width: 24px;
  height: 24px;
}

.platform p {
  margin: 0;
  color: var(--text-muted);
  font-size: 15px;
}

.platform .actions {
  margin-top: auto;
}

.platform .button {
  height: 44px;
  padding: 0 18px;
  font-size: 15px;
}

.requirements {
  margin-top: 20px;
  color: var(--text-muted);
  font-size: 14px;
}

/* Privacy */

.privacy {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgb(107 91 255 / 0.16), rgb(255 229 145 / 0.06));
}

.privacy h2 {
  font-size: 26px;
}

.privacy p {
  max-width: 700px;
  margin: 0;
  color: var(--text-muted);
}

/* Footer */

footer {
  margin-top: 40px;
  padding: 32px 0 40px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 13px;
}

footer .wrap {
  display: grid;
  gap: 10px;
}

footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 14px;
}

footer nav a {
  text-decoration: none;
}

footer nav a:hover {
  color: var(--text);
}

footer p {
  margin: 0;
}

:focus-visible {
  outline: 2px solid var(--accent-hover);
  outline-offset: 3px;
}

@media (max-width: 960px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .features {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 760px) {
  .nav {
    display: none;
  }

  .lang {
    margin-left: auto;
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 40px 0 32px;
    text-align: center;
  }

  .hero-art {
    order: -1;
  }

  .hero-art img {
    width: 200px;
  }

  .lead {
    margin-inline: auto;
  }

  .actions {
    justify-content: center;
  }

  .platform .actions {
    justify-content: flex-start;
  }

  .cards,
  .features,
  .download {
    grid-template-columns: 1fr;
  }

  .privacy {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  * {
    transition: none !important;
  }
}