.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 60px 0;
  background: radial-gradient(circle at top left, rgba(31, 124, 193, 0.18), transparent 50%),
    radial-gradient(circle at bottom right, rgba(255, 122, 61, 0.18), transparent 50%),
    var(--bg);
}

.auth-card {
  width: min(520px, 92vw);
  padding: 32px;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.auth-card h1 {
  margin: 0 0 8px;
}

.auth-card label {
  font-weight: 700;
  font-size: 0.9rem;
}

.input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #f9fcff;
  font-size: 1rem;
}

.role-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.role-card {
  padding: 16px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #f7fbff;
  cursor: pointer;
  transition: all 0.2s ease;
}

.role-card.active {
  border-color: var(--accent);
  box-shadow: 0 10px 24px rgba(31, 124, 193, 0.18);
  background: #fff;
}

.role-card h4 {
  margin: 6px 0;
}

@media (max-width: 640px) {
  .role-cards {
    grid-template-columns: 1fr;
  }
}