:root {
  --bg: #0b0b0d;
  --bg-elev: #131318;
  --bg-card: #15151b;
  --border: #23232c;
  --text: #ececf1;
  --muted: #8a8a96;
  --muted-2: #5a5a64;
  --accent: #5e6ad2;
  --accent-soft: rgba(94, 106, 210, 0.14);
  --accent-border: rgba(94, 106, 210, 0.32);
  --max-w: 720px;
  --shot-w: 880px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "SF Pro Text",
    "Inter",
    "Segoe UI",
    Helvetica,
    Arial,
    sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  background:
    radial-gradient(
      900px 500px at 50% -10%,
      rgba(94, 106, 210, 0.18),
      transparent 70%
    ),
    var(--bg);
  min-height: 100vh;
}

main {
  max-width: var(--shot-w);
  margin: 0 auto;
  padding: 0 24px 96px;
}

a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--muted-2);
  transition: border-color 120ms ease, color 120ms ease;
}

a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

code {
  font-family:
    ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 5px;
  color: #d6d6e0;
}

h1,
h2,
h3 {
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
}

p {
  margin: 0;
  color: var(--text);
}

/* ---------- Hero ---------- */

.hero {
  text-align: center;
  padding: 96px 0 56px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.hero__icon {
  width: 84px;
  height: 84px;
  display: block;
  margin: 0 auto 28px;
  filter: drop-shadow(0 8px 24px rgba(94, 106, 210, 0.35));
}

.hero__name {
  font-size: 48px;
  letter-spacing: -0.03em;
  margin-bottom: 18px;
}

.hero__tagline {
  font-size: 22px;
  line-height: 1.35;
  color: var(--text);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.hero__sub {
  color: var(--muted);
  font-size: 17px;
  max-width: 520px;
  margin: 0 auto 36px;
}

.hero__shot {
  margin: 72px auto 0;
  padding: 0;
  max-width: 380px;
}

.hero__shot img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow:
    0 40px 100px -30px rgba(94, 106, 210, 0.35),
    0 30px 60px -20px rgba(0, 0, 0, 0.7),
    0 0 0 1px rgba(255, 255, 255, 0.02) inset;
}

/* ---------- CTA ---------- */

.cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.005em;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 120ms ease, background 120ms ease, border-color 120ms ease;
}

.btn--primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn--primary:hover {
  background: #6b77dd;
  color: #fff;
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn--ghost:hover {
  border-color: #3a3a46;
  background: var(--bg-elev);
  color: var(--text);
  transform: translateY(-1px);
}

.btn__icon {
  display: inline-block;
  vertical-align: -2px;
  flex-shrink: 0;
}

.cta__meta {
  color: var(--muted);
  font-size: 14px;
}

.cta__note {
  margin: 18px auto 0;
  max-width: 440px;
  color: var(--muted-2);
  font-size: 13px;
  line-height: 1.5;
}

.cta__note em {
  font-style: normal;
  color: var(--muted);
}

/* ---------- Feature rows ---------- */

.feature {
  max-width: var(--max-w);
  margin: 96px auto 0;
}

.feature__text h2 {
  font-size: 30px;
  margin-bottom: 16px;
  letter-spacing: -0.025em;
}

.feature__text p {
  color: var(--muted);
  font-size: 17px;
}

.feature__text p + p {
  margin-top: 14px;
}

.bullets {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
}

.bullets li {
  padding: 8px 0;
  border-top: 1px solid var(--border);
}

.bullets li:last-child {
  border-bottom: 1px solid var(--border);
}

.bullets li::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: 12px;
  vertical-align: 2px;
}

.feature__shot {
  margin: 36px auto 0;
  padding: 0;
  max-width: 560px;
  text-align: center;
}

.feature__shot img {
  width: 100%;
  max-width: 380px;
  height: auto;
  border-radius: 14px;
  border: 1px solid var(--border);
  box-shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.6);
}

/* ---------- Card grid ---------- */

.grid {
  max-width: var(--max-w);
  margin: 96px auto 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px 22px 20px;
}

.card h3 {
  font-size: 17px;
  margin-bottom: 8px;
  color: var(--text);
}

.card p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.5;
}

/* ---------- Download ---------- */

.download {
  max-width: var(--max-w);
  margin: 120px auto 0;
  text-align: center;
  padding: 56px 24px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-border);
  border-radius: 16px;
}

.download h2 {
  font-size: 30px;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.download__sub {
  color: var(--muted);
  margin-bottom: 28px;
}

.download__note {
  color: var(--muted);
  font-size: 13px;
  margin-top: 18px;
}

/* ---------- Footer ---------- */

footer {
  max-width: var(--max-w);
  margin: 96px auto 0;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

.footer__icon {
  width: 22px;
  height: 22px;
  opacity: 0.7;
  display: block;
  margin: 0 auto 16px;
}

footer p {
  color: var(--muted);
}

.footer__meta {
  margin-top: 4px;
  color: var(--muted-2);
}

footer a {
  border-color: transparent;
}

/* ---------- Selection ---------- */

::selection {
  background: var(--accent);
  color: #fff;
}

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
  main {
    padding: 0 18px 64px;
  }
  .hero {
    padding-top: 64px;
  }
  .hero__name {
    font-size: 36px;
  }
  .hero__tagline {
    font-size: 19px;
  }
  .feature {
    margin-top: 72px;
  }
  .feature__text h2,
  .download h2 {
    font-size: 24px;
  }
  .grid {
    grid-template-columns: 1fr;
    margin-top: 72px;
  }
  .download {
    margin-top: 88px;
    padding: 40px 20px;
  }
}