:root {
  --accent: #e52426;
  --accent-dark: #c71f21;
  --ink: #1a2332;
  --muted: #5a6577;
  --paper: #f4f6f8;
  --white: #ffffff;
  --line: #e2e6ec;
  --hero-a: #1e2a3a;
  --hero-b: #2c3e50;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: "Source Sans 3", system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
}

h1, h2, .brand {
  font-family: Outfit, system-ui, sans-serif;
}

.container {
  width: min(720px, calc(100% - 2.5rem));
  margin-inline: auto;
}

.narrow { padding: 2.5rem 0; }

.hero {
  background:
    radial-gradient(circle at 18% 40%, rgba(229, 36, 38, 0.16), transparent 45%),
    radial-gradient(circle at 85% 75%, rgba(229, 36, 38, 0.1), transparent 40%),
    linear-gradient(145deg, var(--hero-a), var(--hero-b));
  color: var(--white);
  text-align: center;
  padding: 4.5rem 0 4rem;
}

.app-icon {
  width: 112px;
  height: 112px;
  border-radius: 24px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35), 0 0 0 6px rgba(255, 255, 255, 0.08);
  margin-bottom: 1.25rem;
}

.brand {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.85;
  margin-bottom: 0.6rem;
}

h1 {
  font-size: clamp(1.9rem, 5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 0.85rem;
}

.tagline {
  font-size: 1.15rem;
  max-width: 34rem;
  margin: 0 auto 0.75rem;
  opacity: 0.95;
}

.disclaimer {
  font-size: 0.9rem;
  opacity: 0.7;
  margin-bottom: 1.75rem;
}

.hero-links {
  margin-top: 1.25rem;
  font-size: 0.95rem;
}

.hero-links a {
  color: #fff;
  opacity: 0.9;
  font-weight: 600;
}

.cta-row { margin-top: 0.5rem; }

.cta {
  display: inline-block;
  background: var(--accent);
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
  padding: 0.85rem 1.4rem;
  border-radius: 10px;
  box-shadow: 0 10px 24px rgba(229, 36, 38, 0.35);
}

.cta:hover { background: var(--accent-dark); }

main h2 {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

main p, main li {
  color: var(--muted);
  font-size: 1.05rem;
}

main a { color: var(--accent-dark); }

.features {
  margin: 1rem 0 0 1.2rem;
}

.features li { margin-bottom: 0.4rem; }

.doc {
  padding: 2.5rem 0 4rem;
}

.doc h1 {
  font-size: 2rem;
  margin: 1.5rem 0 0.5rem;
}

.doc .meta {
  color: var(--muted);
  margin-bottom: 2rem;
}

.doc h2 {
  font-size: 1.2rem;
  margin: 1.75rem 0 0.6rem;
  color: var(--ink);
}

.doc p, .doc li {
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.doc ul { margin: 0 0 1rem 1.2rem; }

.doc table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.5rem;
  font-size: 0.95rem;
}

.doc th, .doc td {
  border: 1px solid var(--line);
  padding: 0.55rem 0.7rem;
  text-align: left;
  vertical-align: top;
}

.doc th { background: #eef1f4; color: var(--ink); }

.topbar {
  background: var(--hero-b);
  color: var(--white);
  padding: 1rem 0;
}

.topbar a {
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
  font-family: Outfit, system-ui, sans-serif;
}

footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0 2.5rem;
  text-align: center;
  background: var(--white);
}

footer a {
  color: var(--accent-dark);
  text-decoration: none;
  font-weight: 600;
}

.fine {
  margin-top: 0.75rem;
  color: var(--muted);
  font-size: 0.85rem;
}