/* Mobile-First Button System */

/* Base button styles - All buttons inherit from this */
.btn {
  /* Mobile-optimized sizing */
  min-height: 48px; /* Minimum touch target for mobile */
  padding: 16px 24px;
  font-size: 18px;
  font-weight: 600;
  
  /* Appearance */
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  display: inline-block;
  width: 100%;
  max-width: 600px;
  
  /* Interactive states */
  transition: all 0.2s ease;
  touch-action: manipulation; /* Prevents double-tap zoom on iOS */
  
  /* Layout */
  margin: var(--spacing-xs) 0;
  box-sizing: border-box;
}

/* Button variants */
.btn-primary {
  background-color: var(--primary-color);
  color: white;
}

.btn-primary:hover, .btn-primary:focus {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
}

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

.btn-secondary:hover, .btn-secondary:focus {
  background-color: var(--secondary-hover);
  transform: translateY(-1px);
}

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

.btn-danger:hover, .btn-danger:focus {
  background-color: #c20029;
  transform: translateY(-1px);
}

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

.btn-success:hover, .btn-success:focus {
  background-color: #218838;
  transform: translateY(-1px);
}

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

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

/* Button sizes */
.btn-sm {
  min-height: 40px;
  padding: 12px 18px;
  font-size: 16px;
  max-width: 200px;
}

.btn-lg {
  min-height: 56px;
  padding: 20px 32px;
  font-size: 20px;
}

/* Button layout modifiers */
.btn-block {
  width: 100%;
  max-width: none;
}

.btn-center {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

/* Special button types */
.btn-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-money {
  background-color: var(--success-color);
  color: white;
  font-weight: 700;
  min-height: 52px;
}

.btn-money:hover, .btn-money:focus {
  background-color: #1e7e34;
  transform: scale(1.02);
}

/* Button states */
.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn:disabled:hover {
  transform: none;
}

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

/* Legacy compatibility classes (to be gradually replaced) */
.wide-color-button {
  /* Mobile-optimized sizing */
  min-height: 48px;
  padding: 16px 24px;
  font-size: 18px;
  font-weight: 600;
  
  /* Appearance */
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  display: inline-block;
  width: 100%;
  max-width: 600px;
  
  /* Interactive states */
  transition: all 0.2s ease;
  touch-action: manipulation;
  
  /* Layout */
  margin: var(--spacing-xs) 0;
  box-sizing: border-box;
  
  /* Danger variant */
  background-color: var(--danger-color);
  color: white;
}

.wide-color-button:hover, .wide-color-button:focus {
  background-color: #c20029;
  transform: translateY(-1px);
}

.submit-button {
  /* Mobile-optimized sizing */
  min-height: 40px;
  padding: 12px 18px;
  font-size: 16px;
  font-weight: 600;
  max-width: 200px;
  
  /* Appearance */
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  display: block;
  width: 100%;
  
  /* Interactive states */
  transition: all 0.2s ease;
  touch-action: manipulation;
  
  /* Layout */
  margin: var(--spacing-xs) auto;
  box-sizing: border-box;
  
  /* Primary variant */
  background-color: var(--primary-color);
  color: white;
}

.submit-button:hover, .submit-button:focus {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
}

.selectall-button {
  /* Mobile-optimized sizing */
  min-height: 48px;
  padding: 16px 24px;
  font-size: 18px;
  font-weight: 600;
  
  /* Appearance */
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  display: inline-block;
  width: 100%;
  max-width: 600px;
  
  /* Interactive states */
  transition: all 0.2s ease;
  touch-action: manipulation;
  
  /* Layout */
  margin: var(--spacing-xs) 0;
  box-sizing: border-box;
  
  /* Success variant */
  background-color: var(--success-color);
  color: white;
}

.selectall-button:hover, .selectall-button:focus {
  background-color: #218838;
  transform: translateY(-1px);
}

.back-link {
  /* Mobile-optimized sizing */
  min-height: 48px;
  padding: 16px 24px;
  font-size: 18px;
  font-weight: 600;
  
  /* Appearance */
  border: none;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  display: block;
  width: 100%;
  max-width: 600px;
  
  /* Interactive states */
  transition: all 0.2s ease;
  touch-action: manipulation;
  
  /* Layout */
  margin: var(--spacing-xs) 0;
  box-sizing: border-box;
  
  /* Secondary variant */
  background-color: var(--secondary-color);
  color: white;
}

.back-link:hover, .back-link:focus {
  background-color: var(--secondary-hover);
  transform: translateY(-1px);
}

/* Button container */
.button-container {
  max-width: 600px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

/* Responsive adjustments */
@media (min-width: 768px) {
  .btn {
    width: auto;
    min-width: 160px;
  }
  
  .btn-block {
    width: 100%;
  }
}