/* ==============================================
   COMPONENTES UI
   Estilos de componentes reutilizáveis
   ============================================== */

/* ==================
   BOTÕES
   ================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  height: var(--button-height);
  padding: 0 var(--spacing-lg);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-primary-hover);
}

.btn-primary:active:not(:disabled) {
  background-color: var(--color-primary-active);
}

.btn-secondary {
  background-color: var(--color-background);
  color: var(--color-dark);
  border: var(--border-width) solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-background-hover);
  border-color: var(--border-color-dark);
}

.btn-lg {
  height: var(--button-height-lg);
  padding: 0 var(--spacing-xl);
  font-size: var(--font-size-base);
}

.btn-sm {
  height: var(--button-height-sm);
  padding: 0 var(--spacing-md);
  font-size: var(--font-size-xs);
}

.btn-block {
  width: 100%;
}

/* ==================
   INPUTS
   ================== */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-dark-secondary);
}

.form-input,
.form-select {
  width: 100%;
  height: var(--input-height);
  padding: 0 var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--color-dark);
  background-color: var(--color-background);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--border-radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

.form-input:focus,
.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
  outline: none;
}

.form-input::placeholder {
  color: var(--color-dark-muted);
}

.form-input.is-invalid,
.form-select.is-invalid {
  border-color: var(--color-error);
}

.form-input.is-invalid:focus,
.form-select.is-invalid:focus {
  box-shadow: 0 0 0 3px var(--color-error-light);
}

.form-error {
  font-size: var(--font-size-xs);
  color: var(--color-error);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236C757D' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--spacing-md) center;
  padding-right: var(--spacing-2xl);
  cursor: pointer;
}

/* ==================
   TOAST
   ================== */
.toast-container {
  position: fixed;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  z-index: var(--z-index-toast);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  min-width: 300px;
  max-width: 420px;
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--color-background);
  border: var(--border-width) solid var(--border-color);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  animation: toast-slide-in 0.3s ease;
}

.toast.toast-exit {
  animation: toast-slide-out 0.2s ease forwards;
}

@keyframes toast-slide-in {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes toast-slide-out {
  from {
    transform: translateX(0);
    opacity: 1;
  }
  to {
    transform: translateX(100%);
    opacity: 0;
  }
}

.toast-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-dark);
}

.toast-message {
  font-size: var(--font-size-sm);
  color: var(--color-dark-tertiary);
  margin-top: var(--spacing-xs);
}

.toast-close {
  flex-shrink: 0;
  padding: var(--spacing-xs);
  color: var(--color-dark-muted);
  border-radius: var(--border-radius-sm);
  transition: background-color var(--transition-fast);
}

.toast-close:hover {
  background-color: var(--color-background-tertiary);
  color: var(--color-dark);
}

.toast-success {
  border-left: 3px solid var(--color-success);
}

.toast-success .toast-icon {
  color: var(--color-success);
}

.toast-error {
  border-left: 3px solid var(--color-error);
}

.toast-error .toast-icon {
  color: var(--color-error);
}

.toast-warning {
  border-left: 3px solid var(--color-warning);
}

.toast-warning .toast-icon {
  color: var(--color-warning);
}

.toast-info {
  border-left: 3px solid var(--color-info);
}

.toast-info .toast-icon {
  color: var(--color-info);
}

/* ==================
   LOADING SPINNER
   ================== */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spinner-rotate 0.75s linear infinite;
}

.spinner-sm {
  width: 16px;
  height: 16px;
  border-width: 2px;
}

.spinner-lg {
  width: 32px;
  height: 32px;
  border-width: 3px;
}

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

/* Loading overlay */
.loading-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.8);
  z-index: var(--z-index-modal);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.loading-overlay.is-visible {
  opacity: 1;
  visibility: visible;
}

.loading-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.loading-text {
  font-size: var(--font-size-sm);
  color: var(--color-dark-tertiary);
}

/* ==================
   LOGO
   ================== */
.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: var(--color-background);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-dark);
}

/* ==================
   DIVIDER
   ================== */
.divider {
  width: 100%;
  height: var(--border-width);
  background-color: var(--border-color-light);
}

.divider-text {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  color: var(--color-dark-muted);
  font-size: var(--font-size-sm);
}

.divider-text::before,
.divider-text::after {
  content: '';
  flex: 1;
  height: var(--border-width);
  background-color: var(--border-color-light);
}