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

body {
  font-family: 'Barlow', sans-serif;
  background: #f6f7f9;
  color: #1a1a1a;
  min-height: 100dvh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 1.5rem 1rem;
  -webkit-font-smoothing: antialiased;
}

.card {
  width: 100%;
  max-width: 420px;
  background: #ffffff;
  border-radius: 16px;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
  overflow: hidden;
}

.card-header {
  background: linear-gradient(135deg, #0061a7 0%, #00477a 100%);
  color: #ffffff;
  text-align: center;
  padding: 2rem 1.5rem 1.5rem;
}

.avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.3);
  object-fit: cover;
  margin-bottom: 1rem;
}

h1 {
  font-family: 'Chakra Petch', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
  letter-spacing: -0.01em;
}

.title {
  font-size: 0.875rem;
  font-weight: 400;
  opacity: 0.9;
  line-height: 1.4;
}

.location {
  font-size: 0.8rem;
  font-weight: 300;
  opacity: 0.7;
  margin-top: 0.25rem;
}

.card-bio {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid #dde3ea;
}

.card-bio p {
  font-size: 0.875rem;
  line-height: 1.6;
  color: #4a4a4a;
}

.card-actions {
  display: flex;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid #dde3ea;
}

.btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-family: 'Barlow', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s, transform 0.1s;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: #0061a7;
  color: #ffffff;
}

.btn-primary:hover {
  background: #00477a;
}

.btn-secondary {
  background: #f6f7f9;
  color: #0061a7;
  border: 1px solid #dde3ea;
}

.btn-secondary:hover {
  background: #eef1f5;
}

.link-group {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid #dde3ea;
}

.link-group:last-child {
  border-bottom: none;
}

.link-group h2 {
  font-family: 'Chakra Petch', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #0061a7;
  margin-bottom: 0.625rem;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.links a {
  display: inline-block;
  padding: 0.375rem 0.75rem;
  background: #f6f7f9;
  border: 1px solid #dde3ea;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 500;
  color: #1a1a1a;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s;
}

.links a:hover {
  background: #eef1f5;
  border-color: #0061a7;
  color: #0061a7;
}

.qr-section {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid #dde3ea;
  text-align: center;
}

.qr-section h2 {
  font-family: 'Chakra Petch', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #0061a7;
  margin-bottom: 1rem;
}

.qr-grid {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.qr-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.375rem;
}

.qr-item img {
  width: 110px;
  height: 110px;
  border-radius: 8px;
  padding: 6px;
  background: #f6f7f9;
  border: 1px solid #dde3ea;
}

.qr-item span {
  font-size: 0.7rem;
  font-weight: 500;
  color: #4a4a4a;
}

@media (min-width: 480px) {
  body {
    align-items: center;
    padding: 2rem 1rem;
  }
}

@media (prefers-color-scheme: dark) {
  body {
    background: #111318;
  }

  .card {
    background: #1a1d24;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.3);
  }

  .card-bio {
    border-color: #2a2d35;
  }

  .card-bio p {
    color: #b0b8c4;
  }

  .card-actions {
    border-color: #2a2d35;
  }

  .btn-secondary {
    background: #22252d;
    color: #2a8fd8;
    border-color: #2a2d35;
  }

  .btn-secondary:hover {
    background: #2a2d35;
  }

  .link-group {
    border-color: #2a2d35;
  }

  .links a {
    background: #22252d;
    border-color: #2a2d35;
    color: #e0e4ea;
  }

  .links a:hover {
    background: #2a2d35;
    border-color: #2a8fd8;
    color: #2a8fd8;
  }

  .qr-section {
    border-color: #2a2d35;
  }

  .qr-item img {
    background: #ffffff;
    border-color: #2a2d35;
  }

  .qr-item span {
    color: #b0b8c4;
  }
}