:root {
  --navy: #1e2a63;
  --navy-dark: #16204d;
  --ink: #1f2937;
  --muted: #4b5563;
  --sand: #f6f4f0;
  --page-bg: #e6e3dd;
  --line: #e5e7eb;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Source Sans 3", "Source Sans Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--page-bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
}

.page {
  max-width: 640px;
  margin: 24px auto;
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

section {
  padding: 44px 32px;
  text-align: center;
}

.hero { background: #fff; }

.lockup {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-bottom: 28px;
}

.logo { display: block; width: auto; }
.logo-kga { height: 38px; }
.logo-curalinc { height: 40px; }

.plus {
  font-size: 22px;
  font-weight: 600;
  color: #9ca3af;
  line-height: 1;
}

h1, h2 {
  color: var(--navy);
  margin: 0 0 16px;
  line-height: 1.2;
}

h1 { font-size: 30px; font-weight: 700; }
h2 { font-size: 22px; font-weight: 700; }

p {
  margin: 0 0 22px;
  font-size: 16px;
  color: var(--ink);
}

.lead { font-size: 17px; }

.button {
  display: inline-block;
  background: var(--navy);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
  padding: 13px 30px;
  border-radius: 999px;
}

.button:hover,
.button:focus-visible { background: var(--navy-dark); }

.members {
  background: var(--sand);
  border-top: 1px solid var(--line);
}

.guide {
  color: #1d4ed8;
  text-decoration: underline;
}

.download-label {
  margin: 30px 0 12px;
  font-size: 13px;
  font-weight: 700;
  color: var(--navy);
}

.badges {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-bottom: 26px;
}

.badges img {
  height: 44px;
  width: auto;
  display: block;
}

.support {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
}

.support a { color: inherit; }

.footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 24px;
  background: var(--navy);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
}

.footer-mark {
  height: 18px;
  width: auto;
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

@media (max-width: 480px) {
  .page { margin: 0; border-radius: 0; }
  section { padding: 36px 20px; }
  h1 { font-size: 26px; }
  .logo-kga { height: 30px; }
  .logo-curalinc { height: 32px; }
}