/**
 * Componentes Modernos - Maria Clara Portfolio
 * UI/UX 2025 com componentes interativos e acessíveis
 */

/* ===== BOTÕES MODERNOS ===== */

.btn-modern {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-inverted);
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-lg);
  text-decoration: none;
  cursor: pointer;
  overflow: hidden;
  transition: all var(--duration-200) var(--ease-in-out);
  box-shadow: var(--shadow-md);
}

.btn-modern::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--duration-500) var(--ease-in-out);
}

.btn-modern:hover::before {
  left: 100%;
}

.btn-modern:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  background: var(--color-primary-dark);
}

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

.btn-modern:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Variantes de botão */
.btn-modern--secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-modern--secondary:hover {
  background: var(--color-primary);
  color: var(--color-text-inverted);
}

.btn-modern--outline {
  background: transparent;
  color: var(--color-text-primary);
  border: 2px solid var(--color-gray-300);
}

.btn-modern--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ===== CARDS MODERNOS ===== */

.card-modern {
  position: relative;
  background: var(--color-bg-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-md);
  transition: all var(--duration-300) var(--ease-in-out);
  overflow: hidden;
}

.card-modern::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transform: scaleX(0);
  transition: transform var(--duration-300) var(--ease-in-out);
}

.card-modern:hover::before {
  transform: scaleX(1);
}

.card-modern:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.card-modern__header {
  margin-bottom: var(--space-6);
}

.card-modern__icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}

.card-modern__icon i {
  font-size: var(--font-size-xl);
  color: var(--color-text-inverted);
}

.card-modern__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.card-modern__subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.card-modern__content {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* ===== FORMULÁRIOS MODERNOS ===== */

.form-modern {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.form-modern__group {
  position: relative;
}

.form-modern__input {
  width: 100%;
  padding: var(--space-4) var(--space-4) var(--space-2);
  font-size: var(--font-size-base);
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  border: 2px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  transition: all var(--duration-200) var(--ease-in-out);
}

.form-modern__input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(67, 90, 251, 0.1);
}

.form-modern__label {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  transition: all var(--duration-200) var(--ease-in-out);
  pointer-events: none;
}

.form-modern__input:focus + .form-modern__label,
.form-modern__input:not(:placeholder-shown) + .form-modern__label {
  top: var(--space-2);
  left: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-primary);
  background: var(--color-bg-primary);
  padding: 0 var(--space-1);
}

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

/* ===== LOADING STATES ===== */

.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-gray-200);
  border-top: 2px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-skeleton {
  background: linear-gradient(90deg, var(--color-gray-100) 25%, var(--color-gray-200) 50%, var(--color-gray-100) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ===== TOOLTIPS MODERNOS ===== */

.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip__content {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-2) var(--space-3);
  background: var(--color-gray-900);
  color: var(--color-text-inverted);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-md);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-200) var(--ease-in-out);
  z-index: var(--z-tooltip);
}

.tooltip__content::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 4px solid transparent;
  border-top-color: var(--color-gray-900);
}

.tooltip:hover .tooltip__content {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(-4px);
}

/* ===== BADGES MODERNOS ===== */

.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: all var(--duration-200) var(--ease-in-out);
}

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

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

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

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

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

/* ===== ALERTAS MODERNAS ===== */

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

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

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

.alert--warning {
  background: rgba(245, 158, 11, 0.1);
  border-left-color: var(--color-warning);
  color: var(--color-warning);
}

.alert--info {
  background: rgba(59, 130, 246, 0.1);
  border-left-color: var(--color-info);
  color: var(--color-info);
}

/* ===== MODAIS MODERNOS ===== */

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--duration-300) var(--ease-in-out);
  z-index: var(--z-modal);
}

.modal--active {
  opacity: 1;
  visibility: visible;
}

.modal__content {
  background: var(--color-bg-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9);
  transition: transform var(--duration-300) var(--ease-in-out);
}

.modal--active .modal__content {
  transform: scale(1);
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}

.modal__title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.modal__close {
  background: none;
  border: none;
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: all var(--duration-200) var(--ease-in-out);
}

.modal__close:hover {
  background: var(--color-gray-100);
  color: var(--color-text-primary);
}

/* ===== RESPONSIVIDADE ===== */

@media (max-width: 768px) {
  .card-modern {
    padding: var(--space-6);
  }
  
  .modal__content {
    padding: var(--space-6);
    width: 95%;
  }
  
  .tooltip__content {
    display: none;
  }
}

/* ===== ACESSIBILIDADE ===== */

@media (prefers-reduced-motion: reduce) {
  .btn-modern,
  .card-modern,
  .modal__content {
    transition: none;
  }
  
  .loading-spinner {
    animation: none;
  }
  
  .loading-skeleton {
    animation: none;
  }
}

/* ===== UTILITÁRIOS DE VISUALIZAÇÃO ===== */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}