.auth-container {
  width: 100%;
  max-width: 500px;
  background-color: var(--color-chat-bg);
  border-radius: 12px;
  box-shadow: var(--shadow-medium);
  overflow: hidden;
  margin: 1.5rem;
  transition: all 0.3s ease;
}

.auth-header {
  background-color: var(--color-primary);
  color: white;
  text-align: center;
  padding: 1.5rem;
  position: relative;
}

.auth-title {
  font-size: 1.8rem;
  font-weight: 600;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.auth-form {
  padding: 2rem;
}

.form-row {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.form-group {
  margin-bottom: 1.2rem;
  flex: 1;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--color-text);
}

.form-control {
  width: 100%;
  padding: 0.8rem;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background-color: var(--color-input-bg);
  color: var(--color-text);
  font-size: 1rem;
  transition: all 0.2s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(76, 110, 245, 0.1);
}

.btn {
  display: block;
  width: 100%;
  padding: 0.8rem;
  background-color: var(--color-accent);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
}

.btn:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.auth-footer {
  text-align: center;
  padding: 1rem;
  border-top: 1px solid var(--color-border);
  color: var(--color-text);
}

.auth-footer a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}

.auth-footer a:hover {
  text-decoration: underline;
}

.theme-toggle {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  font-size: 1.2rem;
  padding: 0.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s, background-color 0.2s;
}

.theme-toggle:hover {
  background-color: rgba(255, 255, 255, 0.1);
  transform: rotate(15deg);
}

.flash-container {
  margin-bottom: 1.5rem;
}

.flash {
  padding: 0.8rem;
  border-radius: 8px;
  color: white;
  margin-bottom: 0.5rem;
}

.flash-danger {
  background-color: var(--color-danger);
}

.flash-success {
  background-color: var(--color-accent);
}

.flash-warning {
  background-color: #f59e0b;
}

/* Responsive Design */
@media (max-width: 640px) {
  .form-row {
    flex-direction: column;
    gap: 0;
  }
  
  .auth-container {
    margin: 1rem;
  }
  
  .auth-form {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .auth-container {
    margin: 0.5rem;
    max-width: 95%;
  }
  
  .auth-form {
    padding: 1rem;
  }
  
  .auth-header {
    padding: 1rem;
  }
  
  .form-control, .btn {
    padding: 0.7rem;
  }
}