:root {
  --background: #000000;
  --foreground: #ffffff;
  --insights: #ef4656;
  --gray-200: #edf2f7;
  --gray-500: #6b7280;
}
body {
  margin: 0;
  font-family: 'Hanken Grotesk', sans-serif;
  color: var(--foreground);
  background: var(--background);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.container {
  max-width: 640px;
  background: #ffffff;
  color: #000000;
  border-radius: 16px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.35);
  padding: 36px;
  text-align: center;
  animation: fadeIn 0.6s cubic-bezier(0, 0, 0.2, 1);
  border-top: 4px solid var(--insights);
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.logo {
  max-width: 180px;
  margin-bottom: 20px;
}
.badge {
  max-width: 160px;
  margin: 20px auto;
}
h1 {
  font-size: clamp(24px, 4vw, 36px);
  margin: 10px 0 8px;
  font-weight: 700;
  letter-spacing: 0.2px;
}
.meta {
  font-size: 1rem;
  color: #4b5563;
  margin-bottom: 20px;
}
.description {
  font-size: 1rem;
  color: #111827;
  margin-bottom: 20px;
}
.cert-input-row {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 10px;
}
.cert-input {
  flex: 1;
  min-width: 220px;
  max-width: 320px;
  height: 40px;
  padding: 0 12px;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
  font-size: 14px;
}
.verify-btn {
  height: 40px;
  padding: 0 14px;
  border-radius: 8px;
  background: var(--insights);
  color: #ffffff;
  border: none;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 200ms ease-in-out, transform 200ms ease-in-out;
}
.verify-btn:hover {
  background: #d63e4d;
  transform: translateY(-1px);
}
.share {
  margin-top: 30px;
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.share a {
  background: #0077b5;
  color: #ffffff;
  padding: 12px 18px;
  border-radius: 8px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  transition: background-color 200ms ease-in-out, transform 200ms ease-in-out;
  font-size: 14px;
}
.share a img {
  height: 20px;
  filter: brightness(0) invert(1);
}
.share a:hover {
  background: #005885;
  transform: translateY(-1px);
}
.linkedin-add {
  margin-top: 0;
}
.linkedin-add img {
  height: 32px;
}
@media (max-width: 640px) {
  .container { padding: 28px; }
  .logo { max-width: 160px; }
  .badge { max-width: 140px; }
}