:root {
  --primary-performance: #6f42c1;
  --secondary-performance: #563d7c;
  --accent-performance: #9b6bcc;
  --light-performance: #f8f5fc;
  --border: #e9ecef;
  --success: #28a745;
  --warning: #ffc107;
  --danger: #dc3545;
  --info: #17a2b8;
}

/* === LAYOUT PRINCIPALE === */
.performance-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.performance-header {
  text-align: center;
  margin-bottom: 3rem;
  background: white;
  padding: 3rem 2rem;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(111, 66, 193, 0.1);
  border: 1px solid var(--border);
}

.performance-header h1 {
  color: var(--primary-performance);
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary-performance), var(--secondary-performance));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.performance-header p {
  color: #666;
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* === GRIGLIA STRUMENTI === */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.tool-card {
  background: white;
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 8px 25px rgba(0,0,0,0.08);
  border: 1px solid var(--border);
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-performance), var(--secondary-performance));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.tool-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(111, 66, 193, 0.15);
}

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

.tool-header {
  display: flex;
  align-items: center;
  margin-bottom: 1.5rem;
}

.tool-icon-large {
  width: 60px;
  height: 60px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1rem;
  font-weight: bold;
  color: white;
  font-size: 1.4rem;
}

.tool-card.akps-card .tool-icon-large { 
  background: linear-gradient(135deg, var(--success), #20c997); 
}
.tool-card.pps-card .tool-icon-large { 
  background: linear-gradient(135deg, var(--danger), #fd7e14); 
}
.tool-card.adl-card .tool-icon-large { 
  background: linear-gradient(135deg, var(--info), var(--primary-performance)); 
}
.tool-card.badl-card .tool-icon-large { 
  background: linear-gradient(135deg, #6c757d, #495057); 
}

.tool-info h4 {
  color: var(--primary-performance);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.tool-subtitle {
  color: #6c757d;
  font-size: 0.9rem;
  font-weight: 500;
}

.tool-description {
  color: #555;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.tool-features {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.feature-badge {
  background: var(--light-performance);
  color: var(--primary-performance);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.tool-actions {
  display: flex;
  gap: 0.8rem;
}

.btn-action {
  flex: 1;
  padding: 0.8rem 1rem;
  border: none;
  border-radius: 8px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-decoration: none;
}

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

.btn-primary:hover {
  background: var(--secondary-performance);
  transform: translateY(-2px);
}

.btn-outline-primary {
  background: transparent;
  color: var(--primary-performance);
  border: 2px solid var(--primary-performance);
}

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

/* === MODALI === */
.performance-modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
}

.modal-content {
  background: white;
  margin: 2% auto;
  padding: 0;
  border-radius: 20px;
  width: 95%;
  max-width: 1000px;
  max-height: 90vh;
  overflow: hidden;
  box-shadow: 0 25px 50px rgba(0,0,0,0.25);
  animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
  from { transform: translateY(-50px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-header {
  background: linear-gradient(135deg, var(--primary-performance), var(--secondary-performance));
  color: white;
  padding: 2rem;
  position: relative;
}

.modal-header h3 {
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.modal-header p {
  opacity: 0.9;
  font-size: 1rem;
}

.modal-close {
  position: absolute;
  right: 1.5rem;
  top: 1.5rem;
  background: rgba(255,255,255,0.2);
  border: none;
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.modal-close:hover {
  background: rgba(255,255,255,0.3);
  transform: rotate(90deg);
}

.modal-body {
  padding: 2rem;
}

/* === TABS === */
.mode-selector {
  display: flex;
  background: #f8f9fa;
  border-radius: 12px;
  padding: 0.5rem;
  margin-bottom: 2rem;
}

.mode-btn {
  flex: 1;
  padding: 1rem 1.5rem;
  border: none;
  background: transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
  color: #6c757d;
  text-decoration: none;
}

.mode-btn.active {
  background: white;
  color: var(--primary-performance);
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.content-section {
  display: none;
}

.content-section.active {
  display: block;
  animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* === FORM ELEMENTI === */
.patient-info {
  background: var(--light-performance);
  padding: 1.5rem;
  border-radius: 12px;
  margin-bottom: 2rem;
  border: 1px solid var(--border);
}

.patient-info h4 {
  color: var(--primary-performance);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: #495057;
}

.form-control {
  width: 100%;
  padding: 0.8rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-performance);
  box-shadow: 0 0 0 3px rgba(111, 66, 193, 0.1);
}

/* === PROGRESS BAR === */
.progress-container {
  margin: 2rem 0;
}

.progress-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--primary-performance);
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: #e9ecef;
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-performance), var(--secondary-performance));
  transition: width 0.5s ease;
}

/* === FORM SECTIONS === */
.form-section {
  background: white;
  padding: 1.5rem;
  border-radius: 12px;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border);
}

.form-section h4 {
  color: var(--primary-performance);
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--light-performance);
}

.radio-grid {
  display: grid;
  gap: 0.8rem;
}

.domain-group {
  margin-bottom: 1.5rem;
}

.domain-group label {
  display: block;
  margin-bottom: 0.5rem;
}

.radio-option {
  padding: 1rem 1.5rem;
  border: 2px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.3s ease;
  background: #fafafa;
  position: relative;
}

.radio-option strong {
  margin-right: 0.5rem;
}

.radio-option:hover {
  border-color: var(--primary-performance);
  background: var(--light-performance);
  transform: translateX(4px);
}

.radio-option.selected {
  border-color: var(--primary-performance);
  background: var(--light-performance);
  color: var(--primary-performance);
  font-weight: 500;
}

.radio-option.selected::before {
  content: '✓';
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--primary-performance);
  font-weight: bold;
}

/* === RISULTATI === */
.score-display {
  background: linear-gradient(135deg, var(--primary-performance), var(--secondary-performance));
  color: white;
  padding: 2.5rem;
  border-radius: 15px;
  text-align: center;
  margin: 2rem 0;
  box-shadow: 0 10px 30px rgba(111, 66, 193, 0.3);
}

.score-number {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.score-interpretation {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  font-weight: 500;
}

.score-description {
  font-size: 1rem;
  opacity: 0.95;
  line-height: 1.6;
}

/* === TABELLE === */
.scale-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

.scale-table th {
  background: var(--primary-performance);
  color: white;
  padding: 1rem;
  text-align: left;
  font-weight: 600;
}

.scale-table td {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
}

.scale-table tbody tr:hover {
  background: var(--light-performance);
}

/* === BOTTONI === */
.action-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin: 2rem 0;
}

.btn {
  padding: 1rem 2rem;
  border: none;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

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

.btn-success:hover {
  background: #218838;
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(40, 167, 69, 0.3);
}

.btn-warning {
  background: var(--warning);
  color: #212529;
}

.btn-warning:hover {
  background: #e0a800;
  transform: translateY(-2px);
}

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

.btn-danger:hover {
  background: #c82333;
  transform: translateY(-2px);
}

/* === INFO BOXES === */
.info-box {
  background: #f8f9fa;
  padding: 1.5rem;
  border-radius: 12px;
  margin: 1.5rem 0;
  border-left: 4px solid var(--primary-performance);
}

.info-box h5 {
  color: var(--primary-performance);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.info-box ul {
  margin: 0;
  padding-left: 1.5rem;
  color: #666;
}

.info-box li {
  margin-bottom: 0.5rem;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .performance-header {
    padding: 2rem 1rem;
  }

  .performance-header h1 {
    font-size: 2rem;
  }

  .tools-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .modal-content {
    width: 98%;
    margin: 1% auto;
  }

  .modal-body {
    padding: 1rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .action-buttons {
    flex-direction: column;
  }

  .tool-actions {
    flex-direction: column;
  }

  .mode-selector {
    flex-direction: column;
  }

  .mode-btn {
    margin-bottom: 0.5rem;
  }

  .radio-option {
    padding: 0.8rem 1rem;
  }

  .score-number {
    font-size: 2.5rem;
  }
}

@media (max-width: 480px) {
  .performance-container {
    padding: 1rem 0.5rem;
  }

  .tool-header {
    flex-direction: column;
    text-align: center;
  }

  .tool-icon-large {
    margin: 0 0 1rem 0;
  }
}