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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: #1a1a2e;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Header ── */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: #0f3460;
  color: white;
}

.logo {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.powered-by {
  font-size: 0.78rem;
  background: rgba(255, 255, 255, 0.15);
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.9);
}

/* ── Main ── */
main {
  flex: 1;
  max-width: 680px;
  margin: 4rem auto;
  padding: 0 1.5rem;
  text-align: center;
}

main h1 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

main > p {
  color: #555;
  margin-bottom: 1.5rem;
}

/* ── Secure badge ── */
.secure-badge {
  display: inline-block;
  background: #e8f5e9;
  color: #2e7d32;
  padding: 0.3rem 0.9rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 2rem;
}

/* ── Cards panel ── */
.panel {
  border: 1px solid #e0e0e0;
  border-radius: 12px;
  padding: 1.8rem;
  margin: 0 0 2rem 0;
  text-align: left;
}

.panel h2 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: #888;
  margin-bottom: 1rem;
}

.panel ul {
  list-style: none;
}

.panel li {
  padding: 0.5rem 0;
  border-bottom: 1px solid #f4f4f4;
  color: #333;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.panel li:last-child {
  border-bottom: none;
}

.panel li::before {
  content: '✓';
  color: #2e7d32;
  font-weight: 700;
  font-size: 0.9rem;
}

/* ── Info text ── */
.info {
  font-size: 0.9rem;
  color: #888;
  margin-top: 1.5rem;
}

.info a {
  color: #0f3460;
  text-decoration: none;
}

.info a:hover {
  text-decoration: underline;
}

.cgv-link {
  display: inline-block;
  margin-top: 1rem;
  color: #0f3460;
  font-size: 0.9rem;
  text-decoration: none;
}

.cgv-link:hover {
  text-decoration: underline;
}

/* ── Footer ── */
footer {
  text-align: center;
  padding: 1.5rem;
  background: #1a1a2e;
  color: #ccc;
  font-size: 0.85rem;
}

footer a {
  color: #aac4ff;
  text-decoration: none;
  margin: 0 0.4rem;
}

footer a:hover {
  text-decoration: underline;
}

/* ── Return pages ── */
.return-page {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  text-align: center;
}

.return-page .icon {
  font-size: 3.5rem;
  margin-bottom: 1rem;
}

.return-page h1 {
  font-size: 1.8rem;
  margin-bottom: 0.8rem;
}

.return-page p {
  color: #555;
  margin-bottom: 0.6rem;
}

.return-page a {
  color: #0f3460;
}

/* ── Responsive ── */
@media (max-width: 600px) {
  header {
    flex-direction: column;
    gap: 0.6rem;
    text-align: center;
  }

  main {
    margin: 2.5rem auto;
  }

  main h1 {
    font-size: 1.5rem;
  }
}