:root {
  /* Color Palette - Modern & Premium */
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --success-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --dark-bg: #0f0f23;
  --card-bg: rgba(255, 255, 255, 0.05);
  --card-border: rgba(255, 255, 255, 0.1);
  --text-primary: #ffffff;
  --text-secondary: #a0a0c0;
  --accent-purple: #667eea;
  --accent-pink: #f5576c;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 40px rgba(102, 126, 234, 0.3);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--dark-bg);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Animated Background */
.background-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: var(--dark-bg);
  overflow: hidden;
}

.background-animation::before,
.background-animation::after {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.3;
  animation: float 20s infinite ease-in-out;
}

.background-animation::before {
  background: var(--accent-purple);
  top: -200px;
  left: -200px;
  animation-delay: 0s;
}

.background-animation::after {
  background: var(--accent-pink);
  bottom: -200px;
  right: -200px;
  animation-delay: 10s;
}

@keyframes float {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(100px, -100px) scale(1.1);
  }
  66% {
    transform: translate(-50px, 100px) scale(0.9);
  }
}

/* Container */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-lg);
  position: relative;
  z-index: 1;
}

/* Header */
.header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
  animation: fadeInDown 0.8s ease-out;
}

.header h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.02em;
}

.header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Card */
.card {
  background: var(--card-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-lg);
  animation: fadeInUp 0.8s ease-out;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-glow);
}

/* Form Elements */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

label {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

input[type="text"],
input[type="date"],
textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.3s ease;
  outline: none;
}

input[type="text"]:focus,
input[type="date"]:focus,
textarea:focus {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent-purple);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
  transform: translateY(-2px);
}

textarea {
  resize: vertical;
  min-height: 100px;
  font-family: inherit;
}

/* Accordion */
.accordion {
  margin-bottom: var(--spacing-md);
}

.accordion-item {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
  transition: all 0.3s ease;
}

.accordion-item:hover {
  border-color: rgba(102, 126, 234, 0.3);
}

.accordion-header {
  padding: var(--spacing-md);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.accordion-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 100%;
  background: var(--primary-gradient);
  opacity: 0.1;
  transition: width 0.3s ease;
}

.accordion-header:hover::before {
  width: 100%;
}

.accordion-header h3 {
  font-size: 1.1rem;
  font-weight: 600;
  position: relative;
  z-index: 1;
  color: #4facfe;
}

.accordion-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
  position: relative;
  z-index: 1;
}

.accordion-icon::after {
  content: '+';
  color: white;
  font-size: 1.5rem;
  font-weight: 300;
}

.accordion-item.active .accordion-icon {
  transform: rotate(45deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 var(--spacing-md);
}

.accordion-item.active .accordion-content {
  max-height: 1000px;
  padding: 0 var(--spacing-md) var(--spacing-md);
}

.accordion-content .form-group {
  margin-bottom: var(--spacing-md);
}

.accordion-content .form-group:last-child {
  margin-bottom: 0;
}

/* Button */
.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  background: var(--primary-gradient);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
  text-decoration: none;
  text-align: center;
}

.btn::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 0.5s ease;
}

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

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(102, 126, 234, 0.4);
}

.btn:active {
  transform: translateY(-1px);
}

.btn-full {
  width: 100%;
}

.btn-secondary {
  background: var(--secondary-gradient);
}

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

/* Results Table */
.results-container {
  margin-top: var(--spacing-lg);
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

.results-header h2 {
  font-size: 1.8rem;
  background: var(--success-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.result-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  transition: all 0.3s ease;
}

.result-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(102, 126, 234, 0.3);
  transform: translateX(5px);
}

.result-meta {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}

.result-meta-item {
  display: flex;
  flex-direction: column;
}

.result-meta-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.result-meta-value {
  font-weight: 600;
  color: var(--accent-purple);
}

.result-blocks {
  margin-top: var(--spacing-md);
}

.result-block {
  margin-bottom: var(--spacing-lg);
}

.result-block h4 {
  color: var(--accent-purple);
  margin-bottom: var(--spacing-sm);
  font-size: 1.1rem;
}

.result-question {
  background: rgba(255, 255, 255, 0.02);
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-sm);
}

.result-question-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.result-question-answer {
  color: var(--text-primary);
  white-space: pre-wrap;
}

/* Alert Messages */
.alert {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  animation: slideIn 0.3s ease-out;
}

.alert-success {
  background: rgba(79, 172, 254, 0.1);
  border: 1px solid rgba(79, 172, 254, 0.3);
  color: #4facfe;
}

.alert-error {
  background: rgba(245, 87, 108, 0.1);
  border: 1px solid rgba(245, 87, 108, 0.3);
  color: #f5576c;
}

.alert-info {
  background: rgba(102, 126, 234, 0.1);
  border: 1px solid rgba(102, 126, 234, 0.3);
  color: #667eea;
}

/* Loading Spinner */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 0.8s linear infinite;
  margin-left: var(--spacing-sm);
}

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

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

@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);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: var(--spacing-md);
  }
  
  .card {
    padding: var(--spacing-lg);
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .header h1 {
    font-size: 2rem;
  }
  
  .results-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .result-meta {
    flex-direction: column;
    gap: var(--spacing-sm);
  }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-gradient);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--secondary-gradient);
}

/* No Results */
.no-results {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--text-secondary);
}

.no-results-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-md);
  opacity: 0.3;
}
/* Radio Group Styles */
.radio-group {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-top: var(--spacing-sm);
}

.radio-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
}

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

.radio-option label {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--card-border);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  font-weight: 600;
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-bottom: 0;
  color: var(--text-primary);
}

.radio-option input[type="radio"]:checked + label {
  background: var(--primary-gradient);
  border-color: var(--accent-purple);
  box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
  transform: scale(1.1);
}

.radio-option label:hover {
  border-color: var(--accent-purple);
  background: rgba(102, 126, 234, 0.1);
  transform: scale(1.05);
}

.radio-option input[type="radio"]:checked + label:hover {
  transform: scale(1.15);
}

/* Checkbox Group Styles */
.checkbox-group {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin-top: var(--spacing-sm);
}

.checkbox-option {
  display: flex;
  align-items: center;
  cursor: pointer;
  position: relative;
}

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

.checkbox-option label {
  position: relative;
  margin-bottom: 0;
  font-weight: 400;
  font-size: 0.95rem;
  cursor: pointer;
  padding-left: 44px;
  display: flex;
  align-items: center;
  min-height: 32px;
  color: var(--text-secondary);
  transition: all 0.3s ease;
}

.checkbox-option label::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  border: 2px solid var(--accent-purple);
  border-radius: 6px;
  background: rgba(102, 126, 234, 0.1);
  transition: all 0.3s ease;
}

.checkbox-option label::after {
  content: '✓';
  position: absolute;
  left: 6px;
  top: 50%;
  transform: translateY(-50%) scale(0);
  font-size: 14px;
  font-weight: 700;
  color: var(--primary-gradient);
  color: white;
  transition: all 0.3s ease;
}

.checkbox-option input[type="checkbox"]:checked + label {
  color: var(--text-primary);
}

.checkbox-option input[type="checkbox"]:checked + label::before {
  background: var(--primary-gradient);
  border-color: var(--accent-purple);
  box-shadow: 0 0 15px rgba(102, 126, 234, 0.4);
  transform: translateY(-50%) scale(1.1);
}

.checkbox-option input[type="checkbox"]:checked + label::after {
  transform: translateY(-50%) scale(1);
}

.checkbox-option label:hover::before {
  border-color: var(--accent-purple);
  background: rgba(102, 126, 234, 0.15);
  transform: translateY(-50%) scale(1.05);
}

.checkbox-option input[type="checkbox"]:checked + label:hover::before {
  box-shadow: 0 0 20px rgba(102, 126, 234, 0.6);
  transform: translateY(-50%) scale(1.15);
}