.auth-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 3rem 4rem;
  border-radius: var(--border-radius);
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  max-width: 450px;
  width: 90%;
  transform: translateY(0);
  transition: transform 0.4s ease, opacity 0.4s;
}

.auth-lock.unlocked .auth-card {
  transform: translateY(-20px);
  opacity: 0;
}

.auth-logo {
  font-family: var(--font-heading);
  color: var(--accent-gold);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: 2px;
}

.auth-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.input-group {
  position: relative;
  text-align: left;
}

.auth-input {
  width: 100%;
  padding: 1rem 1.25rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: var(--transition);
  outline: none;
}

.auth-input:focus {
  border-color: var(--accent-gold);
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.auth-input::placeholder {
  color: #66758c;
}

.auth-button {
  width: 100%;
  padding: 1rem;
  background-color: var(--accent-gold);
  color: var(--bg-primary);
  border: none;
  border-radius: var(--border-radius);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.auth-button:hover {
  background-color: var(--accent-gold-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.auth-button:active {
  transform: translateY(0);
}

.auth-error {
  color: #ff6b6b;
  font-size: 0.85rem;
  margin-top: -0.5rem;
  text-align: left;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  height: 0;
}

.auth-error.visible {
  opacity: 1;
  visibility: visible;
  height: auto;
  margin-top: 0.5rem;
}

@media (max-width: 480px) {
  .auth-card {
    padding: 2.5rem 2rem;
  }
}