:root {
  /* Variáveis específicas do Form - Dark (Default) */
  --form-bg-input: rgb(11, 17, 31);
  --form-placeholder: rgba(255, 255, 255, 0.3);
  --form-border-hover: rgba(255, 255, 255, 0.2);
  --form-focus-bg: rgba(99, 102, 241, 0.05);
  --form-focus-shadow: rgba(99, 102, 241, 0.2);
  --form-error-color: #ef4444;
  --form-error-bg: rgba(239, 68, 68, 0.05);
}

body.light {
  /* Variáveis específicas do Form - Light */
  --form-bg-input: #f8fafc;
  --form-placeholder: rgba(0, 0, 0, 0.4);
  --form-border-hover: rgba(0, 0, 0, 0.1);
  --form-focus-bg: rgba(99, 102, 241, 0.03);
  --form-focus-shadow: rgba(99, 102, 241, 0.1);
}

.form {
  max-width: 520px;
  margin: 0 auto;
  padding: 28px;

  background: linear-gradient(145deg, var(--surface), transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);

  display: flex;
  flex-direction: column;
  gap: 18px;

  box-shadow: var(--shadow);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;

  border-radius: 10px;
  border: 1px solid var(--border);

  background: var(--form-bg-input);
  color: var(--text);

  font-size: 14px;

  transition: all 0.25s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--form-placeholder);
}

.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
  border-color: var(--form-border-hover);
}

/* FOCUS */
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--form-focus-bg);
  box-shadow: 0 0 0 2px var(--form-focus-shadow);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group select {
  cursor: pointer;
  background-color: var(--form-bg-input) !important;
}

.form button {
  margin-top: 10px;
  width: 100%;
  justify-content: center;
}

.checkbox-group {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  accent-color: var(--primary);
}

.checkbox-group label {
  font-size: 14px;
  color: var(--text);
  margin-left: 8px;
}

.checkbox-group input {
  width: auto;
  padding: 0;
}

/* ERROR STATE */
.form-group.error input,
.form-group.error textarea,
.form-group.error select {
  border-color: var(--form-error-color);
  background: var(--form-error-bg);
}

.error-message {
  color: var(--form-error-color);
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 600px) {
  .form {
    padding: 20px;
  }
}