/* Modern Wizard Interface Styles - Black & White Theme */
:root {
  --primary-color: #000000;
  --primary-hover: #333333;
  --secondary-color: #666666;
  --success-color: #000000;
  --danger-color: #000000;
  --warning-color: #000000;
  --info-color: #000000;
  --dark-color: #000000;
  --light-color: #ffffff;
  --gray-50: #fafafa;
  --gray-100: #f5f5f5;
  --gray-200: #e5e5e5;
  --gray-300: #d4d4d4;
  --gray-400: #a3a3a3;
  --gray-500: #737373;
  --gray-600: #525252;
  --gray-700: #404040;
  --gray-800: #262626;
  --gray-900: #171717;
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: var(--gray-700);
  background: linear-gradient(135deg, #000000 0%, #262626 50%, #000000 100%);
  min-height: 100vh;
}

/* Header */
header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

header .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

header h1 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-left: 0.5rem;
}

header .logo svg {
  width: 2rem;
  height: 2rem;
  color: var(--primary-color);
}

/* Wizard Container */
.wizard-container {
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 2rem;
}

.wizard-header {
  text-align: center;
  margin-bottom: 3rem;
}

.wizard-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: white;
  margin-bottom: 0.5rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.wizard-subtitle {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 400;
}

/* Step indicators - FIXED */
.step-indicators {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
  padding: 0 2rem;
  flex-wrap: nowrap;
  overflow-x: auto;
}

.step-indicator {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
  border: 2px solid transparent;
}

.step-indicator.completed {
  background: #000000;
  color: white;
  border-color: #000000;
}

.step-indicator.active {
  background: white;
  color: var(--primary-color);
  box-shadow: var(--shadow);
  border-color: #000000;
}

.step-indicator:hover {
  transform: scale(1.1);
  background: rgba(255, 255, 255, 0.3);
}

/* Wizard Steps */
.wizard-step {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-xl);
  margin-bottom: 2rem;
  overflow: hidden;
  transition: var(--transition);
  display: none;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  border: 2px solid var(--gray-200);
}

.wizard-step.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
  animation: fadeInUp 0.6s ease-out forwards;
  border-color: #000000;
}

.wizard-step.completed {
  display: none;
}

/* Show completed steps on larger screens if desired */
@media (min-width: 1200px) {
  .wizard-step.completed {
    display: block;
    opacity: 0.3;
    transform: translateY(0);
    pointer-events: none;
    margin-bottom: 1rem;
  }
  
  .wizard-step.completed .step-content {
    max-height: 100px;
    overflow: hidden;
    position: relative;
  }
  
  .wizard-step.completed .step-content::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 50px;
    background: linear-gradient(transparent, white);
  }
  
  .wizard-step.completed .step-navigation {
    display: none;
  }
}

.step-header {
  background: linear-gradient(135deg, #000000, #262626);
  color: white;
  padding: 2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.step-number {
  width: 3rem;
  height: 3rem;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.25rem;
  backdrop-filter: blur(10px);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.step-info h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.step-info p {
  opacity: 0.9;
  font-size: 0.875rem;
}

.step-content {
  padding: 2rem;
}

/* Form Elements */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

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

.form-label {
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
}

.form-select,
.form-input {
  padding: 0.75rem 1rem;
  border: 2px solid var(--gray-200);
  border-radius: var(--border-radius-sm);
  font-size: 0.875rem;
  transition: var(--transition);
  background: white;
}

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

.form-select:invalid,
.form-input:invalid {
  border-color: var(--gray-200);
}

/* Dimensions Section */
.dimensions-section {
  margin-top: 1.5rem;
}

.section-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 1rem;
}

#dimensionInputs .grid {
  display: grid;
  gap: 1rem;
}

#dimensionInputs .grid.grid-cols-2 {
  grid-template-columns: 1fr 1fr;
}

#dimensionInputs .grid.grid-cols-3 {
  grid-template-columns: 1fr 1fr 1fr;
}

/* Materials Section */
.materials-header {
  display: flex;
  justify-content: center;
  margin-bottom: 2rem;
}

.add-material-btn {
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius-sm);
  padding: 0.75rem 1.5rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.875rem;
}

.add-material-btn:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.add-material-btn.secondary {
  background: var(--gray-600);
}

.add-material-btn.secondary:hover {
  background: var(--gray-700);
}

.materials-container {
  min-height: 200px;
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 2rem;
  text-align: center;
}

.empty-icon {
  margin-bottom: 1rem;
  opacity: 0.4;
}

.empty-icon svg {
  color: var(--gray-400);
}

.empty-text {
  font-weight: 500;
  color: var(--gray-600);
  margin-bottom: 0.25rem;
}

.empty-subtext {
  font-size: 0.875rem;
  color: var(--gray-500);
}

.empty-state.optional .empty-icon {
  opacity: 0.3;
}

.empty-state.optional .empty-text {
  color: var(--gray-500);
}

/* Material Cards */
.building-material-item,
.window-item,
.door-item {
  background: var(--gray-50);
  border: 2px solid var(--gray-200);
  border-radius: var(--border-radius-sm);
  padding: 1.5rem;
  margin-bottom: 1rem;
  transition: var(--transition);
}

.building-material-item:hover,
.window-item:hover,
.door-item:hover {
  border-color: var(--primary-color);
  box-shadow: var(--shadow);
}

.material-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.material-title {
  font-weight: 600;
  color: var(--gray-800);
}

.remove-btn {
  background: #000000;
  color: white;
  border: none;
  border-radius: 50%;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.remove-btn:hover {
  background: #333333;
  transform: scale(1.1);
}

/* Occupancy Section */
.occupancy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.occupancy-card {
  background: var(--gray-50);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  border: 2px solid var(--gray-200);
  transition: var(--transition);
}

.occupancy-card:hover {
  border-color: var(--primary-color);
}

.card-header {
  padding: 1.5rem;
  background: white;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  gap: 1rem;
}

.toggle-switch {
  position: relative;
}

.toggle-switch input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.toggle-label {
  display: block;
  width: 3rem;
  height: 1.5rem;
  background: var(--gray-300);
  border-radius: 0.75rem;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.toggle-slider {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 1.25rem;
  height: 1.25rem;
  background: white;
  border-radius: 50%;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.toggle-switch input:checked + .toggle-label {
  background: var(--primary-color);
}

.toggle-switch input:checked + .toggle-label .toggle-slider {
  transform: translateX(1.5rem);
}

.card-title h3 {
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 0.25rem;
}

.card-title p {
  font-size: 0.875rem;
  color: var(--gray-500);
}

.card-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: var(--transition);
}

.card-content.hidden {
  display: none;
}

/* Navigation Arrows */
.step-navigation {
  display: flex;
  justify-content: center;
  padding: 2rem;
  background: var(--gray-50);
}

.nav-arrow {
  width: 3rem;
  height: 3rem;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.nav-arrow:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.nav-arrow.disabled {
  background: var(--gray-300);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.nav-arrow.disabled:hover {
  background: var(--gray-300);
  transform: none;
  box-shadow: none;
}

.nav-arrow.calculate-btn {
  background: #000000;
}

.nav-arrow.calculate-btn:hover {
  background: #333333;
}

/* Results Section */
.results-step {
  opacity: 1 !important;
  transform: translateY(0) !important;
  pointer-events: all !important;
}

.results-content {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Metrics Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.metric-card {
  background: linear-gradient(135deg, var(--gray-50), white);
  border: 2px solid var(--gray-200);
  border-radius: var(--border-radius-sm);
  padding: 1.5rem;
  text-align: center;
  transition: var(--transition);
}

.metric-card:hover {
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.metric-card.highlight {
  background: linear-gradient(135deg, #000000, #262626);
  color: white;
  border-color: var(--primary-color);
}

.metric-value {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  font-family: 'Inter', monospace;
}

.metric-label {
  font-size: 0.875rem;
  opacity: 0.8;
  font-weight: 500;
}

/* Analysis Section */
.analysis-section {
  background: white;
  border-radius: var(--border-radius-sm);
  padding: 1.5rem;
  border: 2px solid var(--gray-200);
}

/* Frequency Table */
.frequency-table {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.table-header,
.table-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--border-radius-sm);
}

.table-header {
  background: var(--gray-100);
  font-weight: 600;
  color: var(--gray-700);
  font-size: 0.875rem;
}

.table-row {
  background: var(--gray-50);
  transition: var(--transition);
}

.table-row:hover {
  background: var(--gray-100);
}

.table-row.average {
  background: linear-gradient(135deg, #000000, #262626);
  color: white;
  font-weight: 600;
}

.freq-label {
  font-weight: 500;
}

.rt60-value {
  text-align: center;
  font-family: 'Inter', monospace;
  font-weight: 600;
}

.absorption-value {
  text-align: right;
  font-size: 0.875rem;
  opacity: 0.8;
}

/* Frequency Chart */
.frequency-chart {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.5rem;
  align-items: end;
  min-height: 150px;
  padding: 1rem;
  background: var(--gray-50);
  border-radius: var(--border-radius-sm);
}

.frequency-bar {
  background: linear-gradient(to top, #000000, #262626);
  border-radius: 0.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  color: white;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.5rem 0.25rem;
  min-height: 2rem;
  position: relative;
  transition: var(--transition);
}

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

.bar-value {
  font-weight: 600;
  margin-bottom: 0.25rem;
  font-size: 0.625rem;
}

.bar-label {
  font-size: 0.5rem;
  opacity: 0.9;
}

/* Assessment Card */
.assessment-section {
  background: white;
  border-radius: var(--border-radius-sm);
  padding: 1.5rem;
  border: 2px solid var(--gray-200);
}

.assessment-card {
  border-left: 4px solid;
  padding: 1.5rem;
  border-radius: var(--border-radius-sm);
  background: white;
}

.assessment-card.very-dry { 
  border-left-color: #000000; 
  background: linear-gradient(135deg, #fafafa, #ffffff); 
}

.assessment-card.dry { 
  border-left-color: #262626; 
  background: linear-gradient(135deg, #f8f8f8, #ffffff); 
}

.assessment-card.balanced { 
  border-left-color: #000000; 
  background: linear-gradient(135deg, #f5f5f5, #ffffff); 
}

.assessment-card.live { 
  border-left-color: #404040; 
  background: linear-gradient(135deg, #f0f0f0, #ffffff); 
}

.assessment-card.very-reverberant { 
  border-left-color: #171717; 
  background: linear-gradient(135deg, #f0f0f0, #ffffff); 
}

.assessment-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.assessment-badge {
  display: inline-block;
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 9999px;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.assessment-badge.very-dry {
  background-color: rgba(0, 0, 0, 0.1);
  color: #000000;
}

.assessment-badge.dry {
  background-color: rgba(38, 38, 38, 0.1);
  color: #262626;
}

.assessment-badge.balanced {
  background-color: rgba(0, 0, 0, 0.1);
  color: #000000;
}

.assessment-badge.live {
  background-color: rgba(64, 64, 64, 0.1);
  color: #404040;
}

.assessment-badge.very-reverberant {
  background-color: rgba(23, 23, 23, 0.1);
  color: #171717;
}

.assessment-rt60 {
  font-size: 0.875rem;
  color: var(--gray-500);
  font-weight: 500;
}

.assessment-description {
  color: var(--gray-700);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.recommendations {
  background: rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--border-radius-sm);
  padding: 1rem;
}

.recommendations h4 {
  color: #000000;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
}

.recommendations ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.recommendations li {
  padding: 0.25rem 0;
  font-size: 0.875rem;
  color: #262626;
  position: relative;
  padding-left: 1rem;
  line-height: 1.5;
}

.recommendations li:before {
  content: "→";
  position: absolute;
  left: 0;
  color: #000000;
  font-weight: bold;
}

/* Summary Sections */
.summary-section {
  background: white;
  border-radius: var(--border-radius-sm);
  padding: 1.5rem;
  border: 2px solid var(--gray-200);
}

.materials-summary,
.room-summary {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.summary-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem;
  background: var(--gray-50);
  border-radius: var(--border-radius-sm);
}

.material-name,
.summary-label {
  font-weight: 500;
  color: var(--gray-700);
}

.material-area,
.summary-value {
  font-weight: 600;
  color: var(--gray-800);
  font-family: 'Inter', monospace;
}

.summary-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  background: linear-gradient(135deg, #000000, #262626);
  color: white;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  margin-top: 0.5rem;
}

/* Select2 Overrides */
.select2-container {
  width: 100% !important;
}

.select2-container--default .select2-selection--single {
  height: 42px !important;
  border: 2px solid var(--gray-200) !important;
  border-radius: var(--border-radius-sm) !important;
  background-color: white !important;
  display: flex !important;
  align-items: center !important;
}

.select2-container--default .select2-selection--single .select2-selection__rendered {
  color: var(--gray-700) !important;
  line-height: 42px !important;
  padding-left: 12px !important;
  padding-right: 20px !important;
  font-size: 0.875rem !important;
}

.select2-dropdown {
  border: 2px solid var(--gray-200) !important;
  border-radius: var(--border-radius-sm) !important;
  box-shadow: var(--shadow-lg) !important;
  background-color: white !important;
  z-index: 9999 !important;
}

.select2-container--default .select2-results__option {
  padding: 8px 12px !important;
  font-size: 0.875rem !important;
  color: var(--gray-700) !important;
}

.select2-container--default .select2-results__option--highlighted[aria-selected] {
  background-color: var(--primary-color) !important;
  color: white !important;
}

/* Progress Indicator */
.progress-container {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: rgba(255, 255, 255, 0.2);
  z-index: 1000;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, #000000, #262626);
  transition: width 0.5s ease;
  width: 20%;
}

/* Back Navigation Button */
.step-navigation {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem;
  background: var(--gray-50);
}

.step-navigation.single {
  justify-content: center;
}

.nav-back {
  width: 3rem;
  height: 3rem;
  background: var(--gray-400);
  color: white;
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.nav-back:hover {
  background: var(--gray-500);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.nav-back:disabled {
  background: var(--gray-300);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Wall Selection Styles */
.wall-selection {
  margin-bottom: 1rem;
}

.wall-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.wall-option {
  background: white;
  border: 2px solid var(--gray-200);
  border-radius: var(--border-radius-sm);
  padding: 1rem;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  position: relative;
}

.wall-option:hover {
  border-color: var(--primary-color);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.wall-option.selected {
  border-color: var(--primary-color);
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.05), rgba(0, 0, 0, 0.02));
}

.wall-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.wall-label {
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 0.25rem;
}

.wall-area {
  font-size: 0.875rem;
  color: var(--gray-600);
  font-family: 'Inter', monospace;
}

.wall-dimensions {
  font-size: 0.75rem;
  color: var(--gray-500);
  margin-top: 0.25rem;
}

/* Wall option styles for custom dimensions */
.wall-option-small {
 background: white;
 border: 1px solid var(--gray-300);
 border-radius: var(--border-radius-sm);
 padding: 0.5rem;
 cursor: pointer;
 transition: var(--transition);
 text-align: center;
 position: relative;
 font-size: 0.75rem;
}

.wall-option-small:hover {
 border-color: var(--primary-color);
 transform: translateY(-1px);
 box-shadow: var(--shadow-sm);
}

.wall-option-small.selected {
 border-color: var(--primary-color);
 background: linear-gradient(135deg, rgba(0, 0, 0, 0.05), rgba(0, 0, 0, 0.02));
}

.wall-option-small input[type="radio"] {
 position: absolute;
 opacity: 0;
 pointer-events: none;
}

.wall-warning {
 animation: slideIn 0.3s ease-out;
}

/* Update grid for smaller wall options */
.custom-wall-selection .wall-grid {
 grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
 gap: 0.5rem;
}

/* Room info display */
.room-info-card {
 background: linear-gradient(135deg, rgba(0, 0, 0, 0.05), rgba(0, 0, 0, 0.02));
 border: 1px solid rgba(0, 0, 0, 0.1);
 border-radius: var(--border-radius-sm);
 padding: 1rem;
 margin-bottom: 1.5rem;
}

.room-info-title {
 font-weight: 600;
 color: var(--primary-color);
 margin-bottom: 0.5rem;
 display: flex;
 align-items: center;
 gap: 0.5rem;
}

.room-info-details {
 display: grid;
 grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
 gap: 0.75rem;
 font-size: 0.875rem;
}

.room-detail {
 text-align: center;
 padding: 0.5rem;
 background: rgba(255, 255, 255, 0.7);
 border-radius: var(--border-radius-sm);
}

.room-detail-label {
 color: var(--gray-600);
 font-size: 0.75rem;
 margin-bottom: 0.25rem;
}

.room-detail-value {
 color: var(--gray-800);
 font-weight: 600;
 font-family: 'Inter', monospace;
}

/* Material Grid Layouts */
.material-grid {
 display: grid;
 gap: 1rem;
}

.material-grid.cols-2 {
 grid-template-columns: 1fr 1fr;
}

.material-grid.cols-3 {
 grid-template-columns: 1fr 1fr 1fr;
}

.material-grid.cols-4 {
 grid-template-columns: 1fr 1fr 1fr 1fr;
}

/* Responsive Design */
@media (max-width: 768px) {
 .wizard-container {
   padding: 0 1rem;
 }
 
 .wizard-title {
   font-size: 2rem;
 }
 
 .form-grid {
   grid-template-columns: 1fr;
   gap: 1rem;
 }
 
 .metrics-grid {
   grid-template-columns: 1fr;
   gap: 1rem;
 }
 
 .occupancy-grid {
   grid-template-columns: 1fr;
 }
 
 .frequency-chart {
   grid-template-columns: repeat(3, 1fr);
 }
 
 .step-header {
   padding: 1.5rem;
 }
 
 .step-content {
   padding: 1.5rem;
 }
 
 #dimensionInputs .grid.grid-cols-3 {
   grid-template-columns: 1fr;
 }
 
 #dimensionInputs .grid.grid-cols-2 {
   grid-template-columns: 1fr;
 }
 
 .step-indicators {
   gap: 0.5rem;
   padding: 0 1rem;
 }
 
 .step-indicator {
   width: 2rem;
   height: 2rem;
   font-size: 0.75rem;
 }
}

@media (max-width: 480px) {
 .wizard-title {
   font-size: 1.75rem;
 }
 
 .step-header {
   padding: 1rem;
   flex-direction: column;
   text-align: center;
   gap: 1rem;
 }
 
 .step-content {
   padding: 1rem;
 }
 
 .frequency-chart {
   grid-template-columns: repeat(2, 1fr);
 }
 
 .step-indicators {
   gap: 0.25rem;
 }
}

/* Animations */
@keyframes fadeInUp {
 from {
   opacity: 0;
   transform: translateY(30px);
 }
 to {
   opacity: 1;
   transform: translateY(0);
 }
}

@keyframes slideIn {
 from {
   opacity: 0;
   transform: translateX(-20px);
 }
 to {
   opacity: 1;
   transform: translateX(0);
 }
}

@keyframes pulse {
 0%, 100% {
   opacity: 1;
 }
 50% {
   opacity: 0.5;
 }
}

.fade-in {
 animation: fadeInUp 0.6s ease-out forwards;
}

.slide-in {
 animation: slideIn 0.4s ease-out forwards;
}

.pulse {
 animation: pulse 2s infinite;
}

/* Loading States */
.loading {
 opacity: 0.6;
 pointer-events: none;
}

.loading .nav-arrow {
 animation: pulse 1.5s infinite;
}

/* Focus States */
.form-select:focus,
.form-input:focus {
 outline: none;
 border-color: var(--primary-color);
 box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

/* Error States */
.form-select.error,
.form-input.error {
 border-color: #000000;
 box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

.error-message {
 color: #000000;
 font-size: 0.75rem;
 margin-top: 0.25rem;
 display: flex;
 align-items: center;
 gap: 0.25rem;
}

/* Success States */
.form-select.success,
.form-input.success {
 border-color: #000000;
 box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

.success-message {
 color: #000000;
 font-size: 0.75rem;
 margin-top: 0.25rem;
 display: flex;
 align-items: center;
 gap: 0.25rem;
}

/* Utility Classes */
.hidden {
 display: none !important;
}

.invisible {
 visibility: hidden;
}

.opacity-50 {
 opacity: 0.5;
}

.opacity-75 {
 opacity: 0.75;
}

.pointer-events-none {
 pointer-events: none;
}

.cursor-pointer {
 cursor: pointer;
}

.cursor-not-allowed {
 cursor: not-allowed;
}

.text-center {
 text-align: center;
}

.text-left {
 text-align: left;
}

.text-right {
 text-align: right;
}

.font-mono {
 font-family: 'Inter', monospace;
}

.font-bold {
 font-weight: 700;
}

.font-semibold {
 font-weight: 600;
}

.font-medium {
 font-weight: 500;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
 width: 8px;
}

::-webkit-scrollbar-track {
 background: var(--gray-100);
 border-radius: 4px;
}

::-webkit-scrollbar-thumb {
 background: var(--gray-300);
 border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
 background: var(--gray-400);
}

/* Print Styles - FIXED to show chart */
@media print {
   body {
       background: white !important;
       font-size: 11px !important;
       line-height: 1.3 !important;
       margin: 0 !important;
       padding: 0 !important;
   }
   
   /* Hide everything except results */
   .wizard-step:not(.results-step) {
       display: none !important;
   }
   
   .step-navigation {
       display: none !important;
   }
   
   .wizard-header {
       margin-bottom: 1rem !important;
       page-break-inside: avoid;
   }
   
   .wizard-title {
       color: var(--gray-800) !important;
       text-shadow: none !important;
       font-size: 1.5rem !important;
       margin-bottom: 0.25rem !important;
   }
   
   .wizard-subtitle {
       font-size: 0.875rem !important;
       margin-bottom: 0.5rem !important;
   }
   
   .wizard-container {
       max-width: 100% !important;
       margin: 0 !important;
       padding: 0.5rem !important;
   }
   
   /* Compact step header */
   .step-header {
       padding: 0.75rem !important;
       margin-bottom: 1rem !important;
       page-break-inside: avoid;
   }
   
   .step-number {
       width: 2rem !important;
       height: 2rem !important;
       font-size: 1rem !important;
   }
   
   .step-info h2 {
       font-size: 1.125rem !important;
       margin-bottom: 0.125rem !important;
   }
   
   .step-info p {
       font-size: 0.75rem !important;
   }
   
   /* Compact content */
   .step-content {
       padding: 0.75rem !important;
   }
   
   .results-content {
       gap: 1rem !important;
   }
   
   /* Compact metrics */
   .metrics-grid {
       grid-template-columns: repeat(3, 1fr) !important;
       gap: 0.5rem !important;
       margin-bottom: 1rem !important;
   }
   
   .metric-card {
       padding: 0.75rem !important;
       border: 1px solid #e5e7eb !important;
   }
   
   .metric-value {
       font-size: 1.25rem !important;
       margin-bottom: 0.25rem !important;
   }
   
   .metric-label {
       font-size: 0.75rem !important;
   }
   
   /* Compact analysis sections */
   .analysis-section {
       padding: 0.75rem !important;
       margin-bottom: 1rem !important;
       border: 1px solid #e5e7eb !important;
       page-break-inside: avoid;
   }
   
   .section-title {
       font-size: 1rem !important;
       margin-bottom: 0.5rem !important;
   }
   
   /* Compact frequency table */
   .frequency-table {
       gap: 0.25rem !important;
   }
   
   .table-header,
   .table-row {
       padding: 0.375rem 0.5rem !important;
       font-size: 0.75rem !important;
   }
   
   /* Hide frequency chart to save space */
   .frequency-chart {
       display: none !important;
   }
   
   /* FIXED: Show the treatment comparison chart properly in print */
   .treatment-comparison-chart {
       height: 200px !important;
       padding: 0.5rem !important;
       background: #fff !important;
       border: 1px solid #e5e7eb !important;
       page-break-inside: avoid !important;
       margin-bottom: 1rem !important;
   }
   
   /* REMOVED: The problematic ::before pseudo-element that adds the message */
   .treatment-comparison-chart::before {
       display: none !important;
   }
   
   /* Ensure the canvas is visible in print */
   .treatment-comparison-chart canvas {
       display: block !important;
       max-width: 100% !important;
       height: auto !important;
       page-break-inside: avoid !important;
   }
   
   /* Keep chart legend for reference */
   .chart-legend {
       display: flex !important;
       justify-content: center !important;
       gap: 1rem !important;
       margin-bottom: 0.5rem !important;
       font-size: 0.75rem !important;
   }
   
   .legend-item {
       font-size: 0.7rem !important;
   }
   
   .legend-color {
       width: 0.75rem !important;
       height: 0.25rem !important;
   }
   
   /* Compact assessment */
   .assessment-section {
       margin-bottom: 1rem !important;
   }
   
   .assessment-card {
       padding: 0.75rem !important;
       border: 1px solid #e5e7eb !important;
   }
   
   .assessment-header {
       margin-bottom: 0.5rem !important;
   }
   
   .assessment-description {
       font-size: 0.8rem !important;
       line-height: 1.3 !important;
       margin-bottom: 0.5rem !important;
   }
   
   .recommendations {
       padding: 0.5rem !important;
       font-size: 0.75rem !important;
   }
   
   .recommendations h4 {
       font-size: 0.8rem !important;
       margin-bottom: 0.25rem !important;
   }
   
   .recommendations li {
       padding: 0.125rem 0 !important;
       font-size: 0.75rem !important;
       line-height: 1.2 !important;
   }
   
   /* Compact summary sections */
   .summary-section {
       padding: 0.75rem !important;
       margin-bottom: 1rem !important;
       border: 1px solid #e5e7eb !important;
       page-break-inside: avoid;
   }
   
   .summary-item {
       padding: 0.375rem !important;
       font-size: 0.75rem !important;
   }
   
   .summary-total {
       padding: 0.5rem !important;
       margin-top: 0.25rem !important;
       font-size: 0.8rem !important;
   }
   
   /* Two column layout for summaries */
   .room-summary,
   .materials-summary {
       display: grid !important;
       grid-template-columns: 1fr 1fr !important;
       gap: 0.25rem !important;
   }
   
   .summary-total {
       grid-column: 1 / -1 !important;
   }
   
   /* Compact treatment summary */
   .treatment-summary {
       margin-top: 0.5rem !important;
       padding: 0.5rem !important;
       border: 1px solid #e5e7eb !important;
   }
   
   .summary-grid {
       grid-template-columns: repeat(3, 1fr) !important;
       gap: 0.5rem !important;
   }
   
   .summary-card {
       padding: 0.5rem !important;
       border: 1px solid #e5e7eb !important;
   }
   
   .summary-value {
       font-size: 1rem !important;
       margin-bottom: 0.125rem !important;
   }
   
   .summary-label {
       font-size: 0.65rem !important;
   }
   
   /* Force page breaks appropriately */
   .analysis-section:nth-child(n+4) {
       page-break-before: auto !important;
   }
   
   /* Ensure everything fits on one page */
   html, body {
       height: auto !important;
       overflow: visible !important;
   }
   
   .wizard-step.results-step {
       max-height: none !important;
       height: auto !important;
   }
   
   /* Hide scroll bars */
   ::-webkit-scrollbar {
       display: none !important;
   }
   
   /* Compact spacing for nested items */
   .summary-item[style*="margin-left"] {
       margin-left: 0.5rem !important;
       padding-left: 0.5rem !important;
       border-left: 1px solid var(--gray-300) !important;
       font-size: 0.7rem !important;
   }
   
   /* Hide icons in empty states and other decorative elements */
   .empty-icon {
       display: none !important;
   }
   
   /* Make text more readable in print */
   * {
       color: #000 !important;
       background: transparent !important;
   }
   
   .assessment-badge {
       color: #000 !important;
       background: #f0f0f0 !important;
       border: 1px solid #ccc !important;
   }
   
   /* Ensure metric cards have borders */
   .metric-card.highlight {
       background: #f9f9f9 !important;
       border: 2px solid #000 !important;
   }
   
   /* Show treatment effectiveness data in text format */
   .treatment-comparison-chart + .chart-legend + .treatment-summary {
       display: block !important;
   }
}

/* Show treatment data table only in print */
@media print {
   .print-only-treatment-data {
       display: block !important;
   }
}

@media screen {
   .print-only-treatment-data {
       display: none !important;
   }
}

/* Treatment Comparison Chart Styles */
.treatment-comparison-chart {
   background: var(--gray-50);
   border-radius: var(--border-radius-sm);
   padding: 2rem;
   margin-bottom: 1.5rem;
   position: relative;
   height: 300px;
}

.chart-legend {
   display: flex;
   justify-content: center;
   gap: 2rem;
   margin-bottom: 1.5rem;
   flex-wrap: wrap;
}

.legend-item {
   display: flex;
   align-items: center;
   gap: 0.5rem;
   font-size: 0.875rem;
   color: var(--gray-700);
}

.legend-color {
   width: 1rem;
   height: 0.25rem;
   border-radius: 2px;
}

.treatment-summary {
   background: linear-gradient(135deg, rgba(0, 0, 0, 0.05), rgba(0, 0, 0, 0.02));
   border-radius: var(--border-radius-sm);
   padding: 1.5rem;
   border: 1px solid rgba(0, 0, 0, 0.1);
}

.summary-grid {
   display: grid;
   grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
   gap: 1rem;
}

.summary-card {
   background: white;
   border-radius: var(--border-radius-sm);
   padding: 1rem;
   text-align: center;
   border: 1px solid var(--gray-200);
}

.summary-value {
   font-size: 1.5rem;
   font-weight: 700;
   color: var(--primary-color);
   margin-bottom: 0.25rem;
   font-family: 'Inter', monospace;
}

.summary-label {
   font-size: 0.75rem;
   color: var(--gray-600);
   font-weight: 500;
   text-transform: uppercase;
   letter-spacing: 0.05em;
}

/* Responsive adjustments */
@media (max-width: 768px) {
   .treatment-comparison-chart {
       padding: 1rem;
       height: 250px;
   }
   
   .chart-legend {
       gap: 1rem;
   }
   
   .legend-item {
       font-size: 0.75rem;
   }
   
   .summary-grid {
       grid-template-columns: 1fr;
       gap: 0.75rem;
   }
}

/* Enhanced wall selection visual feedback */
.wall-option.wall-full {
    opacity: 0.5;
    pointer-events: none;
    border-color: #ef4444 !important;
    background: linear-gradient(135deg, #fee2e2, #fef2f2) !important;
}

.wall-option.wall-partial {
    border-color: #f59e0b !important;
    background: linear-gradient(135deg, #fef3cd, #fffbeb) !important;
}

.wall-option .wall-area.limited {
    color: #f59e0b;
    font-weight: 600;
}

.wall-option .wall-area.unavailable {
    color: #ef4444;
    font-weight: 600;
}

/* Wall usage summary styles */
.wall-usage-bar {
    width: 100%;
    height: 6px;
    background: var(--gray-200);
    border-radius: 3px;
    overflow: hidden;
    margin-top: 0.25rem;
}

.wall-usage-fill {
    height: 100%;
    background: linear-gradient(90deg, #10b981, #059669);
    transition: width 0.3s ease;
}

.wall-usage-fill.warning {
    background: linear-gradient(90deg, #f59e0b, #d97706);
}

.wall-usage-fill.danger {
    background: linear-gradient(90deg, #ef4444, #dc2626);
}

/* Material allocation indicators */
.material-allocation-badge {
    display: inline-block;
    padding: 0.125rem 0.375rem;
    font-size: 0.625rem;
    font-weight: 600;
    border-radius: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    margin-left: 0.25rem;
}

.material-allocation-badge.full-wall {
    background-color: rgba(16, 185, 129, 0.1);
    color: #059669;
}

.material-allocation-badge.custom {
    background-color: rgba(59, 130, 246, 0.1);
    color: #2563eb;
}

.material-allocation-badge.limited {
    background-color: rgba(245, 158, 11, 0.1);
    color: #d97706;
}