/* ============================================
   NODO Design System — Componentes
   Botões, Inputs, Cards, Chips, Progress
   ============================================ */

/* --- Botões --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  font-weight: var(--font-medium);
  font-size: var(--text-base);
  padding: 16px 32px;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  text-align: center;
  width: 100%;
}

.btn-primary {
  background-color: var(--color-blue);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: var(--color-blue-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-primary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-white);
  border: 1px solid var(--color-gray-border);
}

.btn-secondary:hover {
  border-color: var(--color-blue);
  color: var(--color-blue);
}

/* --- Inputs --- */
.input-group {
  margin-bottom: var(--space-3);
}

.input-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-white);
  margin-bottom: var(--space-1);
}

.input-label .required {
  color: var(--color-blue);
}

.input-field {
  width: 100%;
  padding: 14px 16px;
  background-color: var(--color-gray-medium);
  border: 1px solid var(--color-gray-border);
  border-radius: var(--radius-md);
  color: var(--color-white);
  font-size: var(--text-base);
  transition: border-color var(--transition-fast);
  outline: none;
}

.input-field::placeholder {
  color: var(--color-gray-light);
  opacity: 0.6;
}

.input-field:focus {
  border-color: var(--color-blue);
}

.input-field.error {
  border-color: var(--color-error);
}

.input-error {
  display: none;
  font-size: var(--text-xs);
  color: var(--color-error);
  margin-top: 4px;
}

.input-field.error + .input-error {
  display: block;
}

/* Textarea */
textarea.input-field {
  min-height: 100px;
  resize: vertical;
}

/* --- Radio Buttons (estilo NODO) --- */
.radio-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.radio-option {
  display: flex;
  align-items: center;
  padding: 14px 16px;
  background-color: var(--color-gray-medium);
  border: 1px solid var(--color-gray-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.radio-option:hover {
  border-color: var(--color-blue);
}

.radio-option input[type="radio"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid var(--color-gray-border);
  border-radius: 50%;
  margin-right: 12px;
  flex-shrink: 0;
  transition: all var(--transition-fast);
  position: relative;
}

.radio-option input[type="radio"]:checked {
  border-color: var(--color-blue);
  background-color: var(--color-blue);
}

.radio-option input[type="radio"]:checked::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 6px;
  height: 6px;
  background: var(--color-white);
  border-radius: 50%;
}

.radio-option.selected {
  border-color: var(--color-blue);
  background-color: rgba(1, 31, 255, 0.05);
}

.radio-option span {
  font-size: var(--text-sm);
  color: var(--color-white);
}

/* --- Chips (Multi-select) --- */
.chips-container {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.chip {
  padding: 8px 16px;
  border: 1px solid var(--color-gray-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--color-white);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.chip:hover {
  border-color: var(--color-blue);
}

.chip.selected {
  background-color: var(--color-blue);
  border-color: var(--color-blue);
  color: var(--color-white);
}

/* --- Cards --- */
.card {
  background-color: var(--color-gray-medium);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
}

/* --- Progress Bar (topo do form) --- */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--color-gray-medium);
  z-index: 100;
}

.progress-bar__fill {
  height: 100%;
  background-color: var(--color-blue);
  transition: width var(--transition-slow);
  border-radius: 0 2px 2px 0;
}

/* --- Upload --- */
.upload-area {
  border: 2px dashed var(--color-gray-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.upload-area:hover {
  border-color: var(--color-blue);
}

.upload-area.has-file {
  border-color: var(--color-success);
  border-style: solid;
}

.upload-area__text {
  font-size: var(--text-sm);
  color: var(--color-gray-light);
}

.upload-area__icon {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-1);
}

/* --- Cálculo ao vivo (card de valores) --- */
.calc-card {
  background-color: var(--color-gray-medium);
  border: 1px solid var(--color-gray-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  margin-top: var(--space-3);
}

.calc-card__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
}

.calc-card__row + .calc-card__row {
  border-top: 1px solid var(--color-gray-border);
}

.calc-card__label {
  font-size: var(--text-sm);
  color: var(--color-gray-light);
}

.calc-card__value {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-blue);
}

/* --- Checkbox (aceites) --- */
.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: var(--space-2);
}

.checkbox-group input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-gray-border);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  margin-top: 2px;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.checkbox-group input[type="checkbox"]:checked {
  background-color: var(--color-blue);
  border-color: var(--color-blue);
}

.checkbox-group input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: var(--color-white);
  font-size: 12px;
  font-weight: bold;
}

.checkbox-group label {
  font-size: var(--text-sm);
  color: var(--color-gray-light);
  cursor: pointer;
  line-height: 1.4;
}