/* ==========================================================================
   FEEDBACK PAGE STYLES - TRANG GÓP Ý
   ========================================================================== */

/* Main Feedback Container */
.feedback-main {
  min-height: calc(100vh - var(--header-height) - var(--nav-height) - 100px);
  padding: var(--spacing-xl) 0;
  background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 50%, #f8f9fa 100%);
  position: relative;
}

.feedback-main::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 15% 25%, rgba(0, 85, 204, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 85% 75%, rgba(220, 53, 69, 0.03) 0%, transparent 50%);
  pointer-events: none;
}

.feedback-main .container {
  position: relative;
  z-index: 1;
}

/* Page Header */
.page-header {
  text-align: center;
  margin-bottom: var(--spacing-xxl);
  animation: fadeInUp 0.6s ease-out;
}

.page-header-icon {
  font-size: 5rem;
  margin-bottom: var(--spacing-md);
  animation: pulse 2s ease-in-out infinite;
}

.page-title {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.05);
}

.page-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-light);
  line-height: 1.8;
  max-width: 800px;
  margin: 0 auto;
}

/* Info Cards */
.info-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xxl);
}

.info-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  box-shadow: var(--shadow-md);
  border: 2px solid transparent;
  transition: all var(--transition-normal);
}

.info-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.info-card-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.info-card-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.info-card-text {
  color: var(--color-text-light);
  line-height: 1.6;
}

/* Feedback Content Layout */
.feedback-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xxl);
  margin-bottom: var(--spacing-xxl);
}

/* Section Card */
.section-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-lg);
  border: 2px solid transparent;
  transition: all var(--transition-normal);
}

.section-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-xl);
}

.section-header {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--color-gray);
}

.section-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.section-description {
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  line-height: 1.6;
}

/* Feedback Form */
.feedback-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.form-label {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.required {
  color: var(--color-danger);
  font-weight: 700;
}

.optional {
  font-size: var(--font-size-sm);
  color: var(--color-gray-dark);
  font-weight: 400;
}

/* Type Selector */
.type-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.type-option {
  cursor: pointer;
}

.type-option input[type="radio"] {
  display: none;
}

.type-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-lg);
  border: 2px solid var(--color-gray);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.type-card:hover {
  border-color: var(--color-primary);
  background: var(--gradient-hero);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.type-option input[type="radio"]:checked + .type-card {
  border-color: var(--color-primary);
  background: var(--gradient-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-lg);
}

.type-option input[type="radio"]:checked + .type-card .type-desc {
  color: rgba(255, 255, 255, 0.9);
}

.type-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
}

.type-name {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.type-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

/* Form Inputs */
.form-input,
.form-textarea,
.filter-select {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--color-gray);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-family: inherit;
  transition: all var(--transition-fast);
  background: var(--color-white);
}

.form-input:focus,
.form-textarea:focus,
.filter-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 85, 204, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 150px;
  line-height: 1.6;
}

.form-hint {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-sm);
  color: var(--color-gray-dark);
}

.char-counter {
  font-weight: 600;
  color: var(--color-primary);
}

/* Form Actions */
.form-actions {
  display: flex;
  gap: var(--spacing-md);
  padding-top: var(--spacing-md);
}

.form-actions .btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
}

.btn-icon {
  font-size: var(--font-size-xl);
}

.btn-text {
  font-weight: 600;
}

/* Filter Bar */
.filter-bar {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  padding: var(--spacing-md);
  background: var(--gradient-hero);
  border-radius: var(--radius-md);
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.filter-label {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-primary);
}

.filter-select {
  min-width: 150px;
  padding: var(--spacing-sm) var(--spacing-md);
}

/* Feedback List */
.feedback-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  min-height: 300px;
}

/* Loading State */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xxl);
  color: var(--color-text-light);
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--color-gray-light);
  border-top: 4px solid var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--spacing-md);
}

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

/* Feedback Item */
.feedback-item {
  background: var(--gradient-hero);
  border: 2px solid var(--color-gray);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-normal);
  animation: fadeInUp 0.4s ease-out;
}

.feedback-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateX(5px);
}

.feedback-item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-md);
  gap: var(--spacing-md);
}

.feedback-item-meta {
  flex: 1;
}

.feedback-item-badges {
  display: flex;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-xs);
}

.badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.badge-status {
  border: 1px solid currentColor;
}

.badge-status.new {
  color: var(--color-warning);
  background: rgba(255, 193, 7, 0.1);
}

.badge-status.processing {
  color: var(--color-primary);
  background: rgba(0, 85, 204, 0.1);
}

.badge-status.done {
  color: var(--color-success);
  background: rgba(40, 167, 69, 0.1);
}

.feedback-item-date {
  font-size: var(--font-size-sm);
  color: var(--color-gray-dark);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.feedback-item-content {
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: var(--spacing-sm);
}

.feedback-item-contact {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  font-style: italic;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--spacing-xxl);
  color: var(--color-text-light);
}

.empty-state-icon {
  font-size: 5rem;
  margin-bottom: var(--spacing-md);
  opacity: 0.5;
}

.empty-state-text {
  font-size: var(--font-size-lg);
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 2px solid var(--color-gray);
}

.pagination-btn {
  background: var(--color-white);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.pagination-btn:hover:not(:disabled) {
  background: var(--gradient-primary);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.pagination-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.pagination-info {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-primary);
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease-out;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xxl);
  max-width: 500px;
  text-align: center;
  box-shadow: var(--shadow-xl);
  animation: fadeInUp 0.4s ease-out;
}

.modal-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  margin: 0 auto var(--spacing-lg);
}

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

.modal-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.modal-text {
  font-size: var(--font-size-base);
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */

@media (max-width: 1024px) {
  .info-cards {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .feedback-main {
    padding: var(--spacing-md) 0;
  }
  
  .page-header-icon {
    font-size: 4rem;
  }
  
  .page-title {
    font-size: var(--font-size-2xl);
  }
  
  .page-subtitle {
    font-size: var(--font-size-base);
  }
  
  .section-card {
    padding: var(--spacing-md);
  }
  
  .type-selector {
    grid-template-columns: 1fr;
  }
  
  .form-actions {
    flex-direction: column;
  }
  
  .info-cards {
    grid-template-columns: 1fr;
  }
  
  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filter-group {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filter-select {
    width: 100%;
  }
  
  .feedback-item {
    padding: var(--spacing-md);
  }
  
  .feedback-item-header {
    flex-direction: column;
  }
  
  .pagination {
    flex-wrap: wrap;
  }
}

@media (max-width: 640px) {
  .section-title {
    font-size: var(--font-size-xl);
  }
  
  .type-card {
    padding: var(--spacing-md);
  }
  
  .type-icon {
    font-size: 2rem;
  }
  
  .modal-content {
    margin: var(--spacing-md);
    padding: var(--spacing-lg);
  }
  
  .modal-icon {
    width: 60px;
    height: 60px;
    font-size: 2rem;
  }
}

/* Print Styles */
@media print {
  .feedback-form-section,
  .filter-bar,
  .pagination,
  .modal {
    display: none;
  }
  
  .feedback-content {
    grid-template-columns: 1fr;
  }
  
  .feedback-item {
    page-break-inside: avoid;
  }
}