/* ========================================
   COMPONENTS.CSS - Componentes Específicos
   ======================================== */

/* ========================================
   Botões
   ======================================== */

.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-lg);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-base);
  text-align: center;
  white-space: nowrap;
  box-sizing: border-box;
}

/* ========================================
   Ícones
   ======================================== */

.icon-sm {
  width: 16px;
  height: 16px;
  vertical-align: middle;
  margin-right: 4px;
}

.btn:hover {
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  box-shadow: var(--shadow-lg);
  color: white;
}

.btn-secondary {
  background-color: var(--color-bg);
  color: var(--color-text);
  border: 1px solid var(--color-primary);
}

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

.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--font-size-lg);
}

.btn-block {
  width: 100%;
}

/* ========================================
   Cards
   ======================================== */

.card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-header {
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.card-header h3 {
  margin: 0;
  font-size: var(--font-size-xl);
}

.card-body {
  margin-bottom: var(--spacing-md);
}

.card-footer {
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: var(--spacing-md);
}

/* ========================================
   Alerts e Notificações
   ======================================== */

.alert {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  border-left: 4px solid;
}

.alert-success {
  background-color: rgba(16, 185, 129, 0.1);
  border-left-color: var(--color-success);
  color: var(--color-success);
}

.alert-error {
  background-color: rgba(239, 68, 68, 0.1);
  border-left-color: var(--color-error);
  color: var(--color-error);
}

.alert-warning {
  background-color: rgba(249, 115, 22, 0.1);
  border-left-color: var(--color-warning);
  color: var(--color-warning);
}

.alert-info {
  background-color: rgba(37, 99, 235, 0.1);
  border-left-color: var(--color-primary);
  color: var(--color-primary);
}

/* ========================================
   Badges
   ======================================== */

.badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  white-space: nowrap;
}

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

.badge-secondary {
  background-color: var(--color-secondary);
  color: white;
}

.badge-success {
  background-color: var(--color-success);
  color: white;
}

.badge-error {
  background-color: var(--color-error);
  color: white;
}

.badge-warning {
  background-color: var(--color-warning);
  color: white;
}

.badge-outline {
  background-color: transparent;
  border: 1px solid currentColor;
}

/* ========================================
   Callouts
   ======================================== */

.callout {
  background-color: var(--color-bg-secondary);
  border-left: 4px solid var(--color-primary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
}

.callout-title {
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.callout-content {
  font-size: var(--font-size-sm);
}

.callout-success {
  border-left-color: var(--color-success);
}

.callout-warning {
  border-left-color: var(--color-warning);
}

.callout-error {
  border-left-color: var(--color-error);
}

.callout-info {
  border-left-color: var(--color-primary);
}

/* ========================================
   FAQ com Details
   ======================================== */

details {
  margin-bottom: var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  cursor: pointer;
  transition: background-color var(--transition-base);
}

details:hover {
  background-color: var(--color-bg-secondary);
}

summary {
  font-weight: 600;
  outline: none;
  user-select: none;
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  position: relative;
  padding-right: var(--spacing-lg);
}

summary::before {
  content: '';
  position: absolute;
  right: 0;
  width: 20px;
  height: 20px;
  background-image: url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="%23808080" stroke-width="2"><path d="M6 9l6 6 6-6"/></svg>');
  background-repeat: no-repeat;
  background-position: center;
  transition: transform var(--transition-base);
}

details[open] summary::before {
  transform: rotate(180deg);
}

summary::marker {
  color: transparent;
  font-size: 0;
}

details[open] summary {
  margin-bottom: var(--spacing-md);
}

details[open] > *:last-child {
  margin-bottom: 0;
}

/* ========================================
   Formulário de Calculadora
   ======================================== */

.calculator {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin: var(--spacing-2xl) 0;
}

.calculator-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
}

.calculator-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

@media (min-width: 640px) {
  .calculator-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.calculator-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.calculator-controls button {
  min-height: 48px;
}

.calculator-group {
  display: flex;
  flex-direction: column;
}

.calculator-group label {
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--color-text);
}

.calculator-group input,
.calculator-group select {
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
}

.calculator-controls {
  display: flex;
  gap: var(--spacing-lg);
  grid-column: 1 / -1;
}

.calculator-controls button {
  flex: 1;
  min-height: 48px;
}

.calculator-results {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin-top: var(--spacing-lg);
  display: none;
}

.calculator-results.show {
  display: block;
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid var(--color-border);
}

.result-item:last-child {
  border-bottom: none;
}

.result-label {
  font-weight: 600;
  color: var(--color-text-light);
}

.result-value {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary);
}

.result-recommendation {
  background-color: var(--color-bg-secondary);
  border-left: 4px solid var(--color-primary);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  margin-top: var(--spacing-lg);
  line-height: var(--line-height-relaxed);
}

/* ========================================
   Tabela de Parcelas
   ======================================== */

.installment-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--spacing-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  font-size: var(--font-size-sm);
}

.installment-table thead {
  background-color: var(--color-bg-secondary);
}

.installment-table th {
  padding: var(--spacing-md);
  text-align: right;
  font-weight: 700;
  border-bottom: 2px solid var(--color-border);
}

.installment-table td {
  padding: var(--spacing-md);
  text-align: right;
  border-bottom: 1px solid var(--color-border);
}

.installment-table tbody tr:hover {
  background-color: var(--color-bg-secondary);
}

/* ========================================
   Theme Toggle
   ======================================== */

.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  padding: 0;
}

.theme-toggle:hover {
  transform: scale(1.15);
  background-color: var(--color-primary-dark);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  stroke-width: 2;
}

@media (max-width: 640px) {
  .theme-toggle {
    width: 36px;
    height: 36px;
  }
  
  .theme-toggle svg {
    width: 18px;
    height: 18px;
  }
}

/* ========================================
   Scroll-to-Top
   ======================================== */

.scroll-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: white;
  border: none;
  cursor: pointer;
  display: none;
  flex-align: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
  z-index: 999;
  padding: 0;
}

.scroll-to-top:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-4px);
  box-shadow: 0 15px 25px rgba(0, 0, 0, 0.2);
}

.scroll-to-top.visible {
  display: flex;
  align-items: center;
  justify-content: center;
}

.scroll-to-top svg {
  width: 24px;
  height: 24px;
  stroke-width: 2;
}

/* ========================================
   Loading State
   ======================================== */

.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--color-bg-tertiary);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-full);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ========================================
   Error State
   ======================================== */

.error-message {
  color: var(--color-error);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-sm);
}

/* ========================================
   Responsividade
   ======================================== */

@media (max-width: 640px) {
  .card {
    padding: var(--spacing-md);
  }

  .calculator {
    padding: var(--spacing-md);
  }

  .calculator-controls {
    flex-direction: column;
  }

  .calculator-controls button {
    width: 100%;
  }

  .result-item {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
  }

  .installment-table {
    font-size: 12px;
  }

  .installment-table th,
  .installment-table td {
    padding: var(--spacing-sm);
  }
}
/* ========================================
   Feather Icons Support (SVG)
   ======================================== */

svg[data-feather] {
  display: inline-block;
  vertical-align: middle;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}