/* LearnSportsBetting Calculator Suite
   Clean, Professional Green Theme
   Full Functionality with Great UX
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@500&display=swap');

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

:root {
  --green-50: #E8F5E9;
  --green-100: #C8E6C9;
  --green-200: #A5D6A7;
  --green-300: #81C784;
  --green-400: #66BB6A;
  --green-500: #4CAF50;
  --green-600: #43A047;
  --green-700: #388E3C;
  --green-800: #2E7D32;
  --green-900: #1B5E20;
  
  --gray-50: #FAFAFA;
  --gray-100: #F5F5F5;
  --gray-200: #EEEEEE;
  --gray-300: #E0E0E0;
  --gray-400: #BDBDBD;
  --gray-500: #9E9E9E;
  --gray-600: #757575;
  --gray-700: #616161;
  --gray-800: #424242;
  --gray-900: #212121;
  
  --white: #ffffff;
  --danger: #EF5350;
  --danger-light: #FFEBEE;
  --warning: #FFA726;
  --warning-light: #FFF3E0;
  --info: #29B6F6;
  --info-light: #E1F5FE;
  
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 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);
  
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: linear-gradient(135deg, var(--green-50) 0%, var(--white) 50%, var(--gray-50) 100%);
  min-height: 100vh;
  color: var(--gray-800);
  line-height: 1.6;
}

/* Container */
.calculator-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* Header */
.calc-header {
  text-align: center;
  margin-bottom: 2rem;
}

.calc-header h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--green-800);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
}

.calc-header h1 .icon {
  font-size: 1.75rem;
}

.calc-header p {
  color: var(--gray-600);
  font-size: 1.05rem;
}

/* Calculator Card */
.calculator-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 2rem;
  margin-bottom: 1.5rem;
}

.calculator-card h2 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--green-100);
}

/* Form Elements */
.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

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

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.form-group label .hint {
  font-weight: 400;
  color: var(--gray-500);
  font-size: 0.8rem;
}

.form-group input,
.form-group select {
  padding: 0.875rem 1rem;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.2s ease;
  background: var(--white);
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--green-500);
  box-shadow: 0 0 0 3px var(--green-100);
}

.form-group input::placeholder {
  color: var(--gray-400);
}

/* Input with prefix/suffix */
.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-wrapper .prefix,
.input-wrapper .suffix {
  position: absolute;
  color: var(--gray-500);
  font-weight: 500;
  pointer-events: none;
}

.input-wrapper .prefix {
  left: 1rem;
}

.input-wrapper .suffix {
  right: 1rem;
}

.input-wrapper input.has-prefix {
  padding-left: 2rem;
}

.input-wrapper input.has-suffix {
  padding-right: 2.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.5rem;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--green-500) 0%, var(--green-600) 100%);
  color: var(--white);
  box-shadow: var(--shadow-md), 0 2px 8px rgba(76, 175, 80, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--green-600) 0%, var(--green-700) 100%);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg), 0 4px 12px rgba(76, 175, 80, 0.4);
}

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

.btn-secondary {
  background: var(--gray-100);
  color: var(--gray-700);
}

.btn-secondary:hover {
  background: var(--gray-200);
}

.btn-block {
  width: 100%;
}

.btn-group {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

/* Results Section */
.results-section {
  background: linear-gradient(135deg, var(--green-50) 0%, var(--green-100) 100%);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-top: 1.5rem;
}

.results-section h3 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--green-800);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.result-item {
  background: var(--white);
  padding: 1rem;
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.result-item .label {
  font-size: 0.8rem;
  color: var(--gray-600);
  margin-bottom: 0.25rem;
}

.result-item .value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--green-700);
  font-family: 'JetBrains Mono', monospace;
}

.result-item .value.positive {
  color: var(--green-600);
}

.result-item .value.negative {
  color: var(--danger);
}

.result-item .value.neutral {
  color: var(--gray-700);
}

/* Large Result Display */
.result-highlight {
  background: linear-gradient(135deg, var(--green-600) 0%, var(--green-700) 100%);
  color: var(--white);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  text-align: center;
  margin-bottom: 1rem;
}

.result-highlight .label {
  font-size: 0.9rem;
  opacity: 0.9;
  margin-bottom: 0.25rem;
}

.result-highlight .value {
  font-size: 2.5rem;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
}

/* Odds Display */
.odds-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.95rem;
}

.odds-badge.plus {
  background: var(--green-100);
  color: var(--green-800);
}

.odds-badge.minus {
  background: var(--danger-light);
  color: var(--danger);
}

/* Parlay Legs */
.parlay-legs {
  margin-bottom: 1.5rem;
}

.parlay-leg {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--gray-50);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
  border: 2px solid var(--gray-200);
  transition: all 0.2s ease;
}

.parlay-leg:focus-within {
  border-color: var(--green-500);
  background: var(--white);
}

.parlay-leg .leg-number {
  width: 32px;
  height: 32px;
  background: var(--green-500);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.parlay-leg input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: 1rem;
  padding: 0.5rem;
  font-family: 'JetBrains Mono', monospace;
}

.parlay-leg input:focus {
  outline: none;
}

.parlay-leg .remove-leg {
  width: 32px;
  height: 32px;
  border: none;
  background: var(--danger-light);
  color: var(--danger);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  transition: all 0.2s ease;
}

.parlay-leg .remove-leg:hover {
  background: var(--danger);
  color: var(--white);
}

.add-leg-btn {
  width: 100%;
  padding: 0.875rem;
  border: 2px dashed var(--gray-300);
  background: transparent;
  border-radius: var(--radius-md);
  color: var(--gray-600);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.add-leg-btn:hover {
  border-color: var(--green-500);
  color: var(--green-600);
  background: var(--green-50);
}

/* Table Styles */
.calc-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

.calc-table th,
.calc-table td {
  padding: 0.875rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--gray-200);
}

.calc-table th {
  font-weight: 600;
  color: var(--gray-700);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--gray-50);
}

.calc-table td {
  font-family: 'JetBrains Mono', monospace;
}

.calc-table tr:last-child td {
  border-bottom: none;
}

.calc-table tr:hover td {
  background: var(--green-50);
}

/* Info Box */
.info-box {
  background: var(--info-light);
  border-left: 4px solid var(--info);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 1.5rem 0;
}

.info-box h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 0.5rem;
}

.info-box p {
  font-size: 0.9rem;
  color: var(--gray-700);
  margin: 0;
}

/* Warning Box */
.warning-box {
  background: var(--warning-light);
  border-left: 4px solid var(--warning);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin: 1.5rem 0;
}

/* Toggle Switch */
.toggle-group {
  display: flex;
  background: var(--gray-100);
  border-radius: var(--radius-md);
  padding: 4px;
  gap: 4px;
}

.toggle-group button {
  flex: 1;
  padding: 0.625rem 1rem;
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
  font-weight: 500;
  color: var(--gray-600);
  cursor: pointer;
  transition: all 0.2s ease;
}

.toggle-group button.active {
  background: var(--white);
  color: var(--green-700);
  box-shadow: var(--shadow-sm);
}

/* Navigation */
.calc-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
  padding: 1rem;
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.calc-nav a {
  padding: 0.625rem 1rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--gray-600);
  font-weight: 500;
  font-size: 0.9rem;
  transition: all 0.2s ease;
}

.calc-nav a:hover {
  background: var(--green-50);
  color: var(--green-700);
}

.calc-nav a.active {
  background: var(--green-500);
  color: var(--white);
}

/* Footer */
.calc-footer {
  text-align: center;
  padding: 2rem;
  color: var(--gray-500);
  font-size: 0.9rem;
}

.calc-footer a {
  color: var(--green-600);
  text-decoration: none;
}

.calc-footer a:hover {
  text-decoration: underline;
}

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

.fade-in {
  animation: fadeIn 0.3s ease;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.02); }
}

.pulse {
  animation: pulse 0.3s ease;
}

/* Responsive */
@media (max-width: 640px) {
  .calculator-page {
    padding: 1rem;
  }
  
  .calculator-card {
    padding: 1.25rem;
  }
  
  .calc-header h1 {
    font-size: 1.5rem;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .result-highlight .value {
    font-size: 2rem;
  }
  
  .btn-group {
    flex-direction: column;
  }
  
  .calc-nav {
    justify-content: center;
  }
}