.auth-container {
  max-width: 380px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}
.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
}
.auth-card h2 {
  font-family: var(--serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1.5rem;
  text-align: center;
}
.form-group {
  margin-bottom: 1rem;
}
.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.form-group input {
  width: 100%;
  padding: 0.6rem 0.8rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--sans);
  font-size: 0.95rem;
  transition: border-color 0.2s;
}
.form-group input:focus {
  outline: none;
  border-color: var(--accent-ice);
}
.auth-btn {
  width: 100%;
  padding: 0.7rem;
  margin-top: 0.5rem;
  background: var(--accent-ice);
  color: #0f1118;
  border: none;
  border-radius: 6px;
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.2s;
}
.auth-btn:hover { opacity: 0.85; }
.auth-link {
  display: block;
  text-align: center;
  margin-top: 1.2rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.auth-link a {
  color: var(--accent-ice);
  text-decoration: none;
}
.auth-link a:hover { text-decoration: underline; }
.auth-error {
  background: rgba(212,123,94,0.12);
  color: var(--accent-fire);
  border: 1px solid rgba(212,123,94,0.25);
  border-radius: 6px;
  padding: 0.6rem 0.8rem;
  font-size: 0.85rem;
  margin-bottom: 1rem;
  display: none;
}
.auth-error.visible { display: block; }