/**
 * Band Manager Elite - Design System
 * Modern, professional design system with CSS variables
 * 
 * @package BME
 */

:root {
  /* Brand Colors - Band Manager Elite */
  --bme-primary: #5F9EA0;
  --bme-primary-hover: #4D7E80;
  --bme-primary-disabled: rgba(95, 158, 160, 0.5);
  
  --bme-secondary: #E0E0E0;
  --bme-secondary-hover: #C8C8C8;
  --bme-secondary-text: #333333;
  
  --bme-info: #A9C8E4;
  --bme-info-light: #D4E4F3;
  --bme-info-text: #1F3A4A;
  
  --bme-success: #A8D5A2;
  --bme-success-light: #D4EAD0;
  --bme-success-text: #2E5A32;
  
  --bme-danger: #D64545;
  --bme-danger-hover: #B93838;
  --bme-danger-light: #FDECEC;
  --bme-danger-border: #F5B5B5;
  --bme-danger-text: #7A1F1F;
  
  /* Legacy color variables for compatibility */
  --bme-primary-500: #5F9EA0;
  --bme-primary-600: #4D7E80;
  --bme-success-600: #A8D5A2;
  --bme-success-700: #8FC387;
  --bme-error-600: #D64545;
  --bme-error-700: #B93838;
  
  /* Neutral/Gray Colors */
  --bme-gray-50: #f9fafb;
  --bme-gray-100: #f3f4f6;
  --bme-gray-200: #e5e7eb;
  --bme-gray-300: #d1d5db;
  --bme-gray-400: #9ca3af;
  --bme-gray-500: #6b7280;
  --bme-gray-600: #4b5563;
  --bme-gray-700: #374151;
  --bme-gray-800: #1f2937;
  --bme-gray-900: #111827;
  
  /* Typography */
  --bme-font-sans: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  --bme-font-mono: 'SF Mono', 'Monaco', 'Consolas', 'Courier New', monospace;
  
  /* Font Sizes */
  --bme-text-xs: 0.75rem;    /* 12px */
  --bme-text-sm: 0.875rem;   /* 14px */
  --bme-text-base: 1rem;     /* 16px */
  --bme-text-lg: 1.125rem;   /* 18px */
  --bme-text-xl: 1.25rem;    /* 20px */
  --bme-text-2xl: 1.5rem;    /* 24px */
  --bme-text-3xl: 1.875rem;  /* 30px */
  --bme-text-4xl: 2.25rem;   /* 36px */
  
  /* Line Heights */
  --bme-leading-tight: 1.25;
  --bme-leading-normal: 1.5;
  --bme-leading-relaxed: 1.75;
  
  /* Spacing Scale */
  --bme-space-1: 0.25rem;   /* 4px */
  --bme-space-2: 0.5rem;    /* 8px */
  --bme-space-3: 0.75rem;   /* 12px */
  --bme-space-4: 1rem;      /* 16px */
  --bme-space-5: 1.25rem;   /* 20px */
  --bme-space-6: 1.5rem;    /* 24px */
  --bme-space-8: 2rem;      /* 32px */
  --bme-space-10: 2.5rem;   /* 40px */
  --bme-space-12: 3rem;     /* 48px */
  --bme-space-16: 4rem;     /* 64px */
  
  /* Border Radius */
  --bme-radius-sm: 0.25rem;   /* 4px */
  --bme-radius-md: 0.5rem;    /* 8px */
  --bme-radius-lg: 0.75rem;   /* 12px */
  --bme-radius-xl: 1rem;      /* 16px */
  --bme-radius-2xl: 1.5rem;   /* 24px */
  --bme-radius-full: 9999px;
  
  /* Shadows */
  --bme-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --bme-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --bme-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --bme-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --bme-shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  
  /* Transitions */
  --bme-transition-fast: 150ms ease;
  --bme-transition-base: 200ms ease;
  --bme-transition-slow: 300ms ease;
  
  /* Color Aliases (for consistency with other naming conventions) */
  --bme-color-primary: #5F9EA0;
  --bme-color-success: var(--bme-success-600);
  --bme-color-warning: var(--bme-warning-600);
  --bme-color-error: var(--bme-error-600);
  --bme-color-gray-50: var(--bme-gray-50);
  --bme-color-gray-100: var(--bme-gray-100);
  --bme-color-gray-200: var(--bme-gray-200);
  --bme-color-gray-300: #d1d5db;
  --bme-color-gray-400: var(--bme-gray-400);
  --bme-color-gray-500: var(--bme-gray-500);
  --bme-color-gray-600: var(--bme-gray-600);
  --bme-color-gray-700: var(--bme-gray-700);
  --bme-color-gray-800: var(--bme-gray-800);
  --bme-color-gray-900: var(--bme-gray-900);
}

/* Base Typography */
.bme-text-xs { font-size: var(--bme-text-xs); line-height: 1rem; }
.bme-text-sm { font-size: var(--bme-text-sm); line-height: 1.25rem; }
.bme-text-base { font-size: var(--bme-text-base); line-height: 1.5rem; }
.bme-text-lg { font-size: var(--bme-text-lg); line-height: 1.75rem; }
.bme-text-xl { font-size: var(--bme-text-xl); line-height: 1.75rem; }
.bme-text-2xl { font-size: var(--bme-text-2xl); line-height: 2rem; }
.bme-text-3xl { font-size: var(--bme-text-3xl); line-height: 2.25rem; }

.bme-font-normal { font-weight: 400; }
.bme-font-medium { font-weight: 500; }
.bme-font-semibold { font-weight: 600; }
.bme-font-bold { font-weight: 700; }

/* Card Component */
.bme-card {
  background: white;
  border: 1px solid var(--bme-gray-200);
  border-radius: var(--bme-radius-lg);
  padding: var(--bme-space-6);
  margin-bottom: var(--bme-space-4);
  box-shadow: var(--bme-shadow-sm);
  transition: box-shadow var(--bme-transition-base);
}

.bme-card:hover {
  box-shadow: var(--bme-shadow-md);
}

.bme-card-header {
  margin-bottom: var(--bme-space-4);
  padding-bottom: var(--bme-space-4);
  border-bottom: 1px solid var(--bme-gray-200);
}

.bme-card-title {
  font-size: var(--bme-text-xl);
  font-weight: 600;
  color: var(--bme-gray-900);
  margin: 0;
}

.bme-card-body {
  color: var(--bme-gray-700);
}

/* Button Components */
.bme-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--bme-space-2);
  padding: var(--bme-space-3) var(--bme-space-5);
  font-size: var(--bme-text-sm);
  font-weight: 500;
  line-height: 1;
  border: none;
  border-radius: var(--bme-radius-md);
  cursor: pointer;
  transition: all var(--bme-transition-fast);
  text-decoration: none;
  font-family: var(--bme-font-sans);
}

.bme-btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(95, 158, 160, 0.3);
}

.bme-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Primary Action Button - #5F9EA0 */
.bme-btn-primary {
  background: var(--bme-primary);
  color: #FFFFFF;
}

.bme-btn-primary:hover:not(:disabled) {
  background: var(--bme-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--bme-shadow-md);
}

.bme-btn-primary:disabled {
  background: var(--bme-primary-disabled);
}

/* Secondary/Neutral Button - #E0E0E0 */
.bme-btn-secondary {
  background: var(--bme-secondary);
  color: var(--bme-secondary-text);
}

.bme-btn-secondary:hover:not(:disabled) {
  background: var(--bme-secondary-hover);
}

/* Informational Button - #A9C8E4 */
.bme-btn-info {
  background: var(--bme-info);
  color: var(--bme-info-text);
}

.bme-btn-info:hover:not(:disabled) {
  background: var(--bme-info-light);
}

/* Success/Positive Button - #A8D5A2 */
.bme-btn-success {
  background: #A8D5A2;
  color: var(--bme-success-text);
}

.bme-btn-success:hover:not(:disabled) {
  background: var(--bme-success-light);
}

/* Payment Tracking (Step 5) - White text for success buttons */
.bme-wizard-content[data-step="5"] .bme-btn-success {
  background: #A8D5A2;
  color: #fff;
}

/* Danger/Destructive Button - #D64545 */
.bme-btn-danger {
  background: var(--bme-danger);
  color: #FFFFFF;
}

.bme-btn-danger:hover:not(:disabled) {
  background: var(--bme-danger-hover);
}

/* Ghost/Outline Button */
.bme-btn-ghost {
  background: transparent;
  color: var(--bme-gray-700);
  border: 1px solid var(--bme-gray-300);
}

.bme-btn-ghost:hover:not(:disabled) {
  background: var(--bme-gray-50);
  border-color: var(--bme-gray-400);
}

/* Button Sizes */
.bme-btn-sm {
  padding: var(--bme-space-2) var(--bme-space-3);
  font-size: var(--bme-text-xs);
}

.bme-btn-lg {
  padding: var(--bme-space-4) var(--bme-space-6);
  font-size: var(--bme-text-base);
}

/* Legacy class names for backward compatibility */
.bme-btn-warning {
  background: var(--bme-info);
  color: var(--bme-info-text);
}

.bme-btn-warning:hover:not(:disabled) {
  background: var(--bme-info-light);
}

/* Badge Components */
.bme-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--bme-space-1);
  padding: var(--bme-space-1) var(--bme-space-3);
  border-radius: var(--bme-radius-full);
  font-size: var(--bme-text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1;
}

.bme-badge-primary {
  background: var(--bme-primary-100);
  color: var(--bme-primary-700);
}

.bme-badge-success {
  background: var(--bme-success-100);
  color: var(--bme-success-700);
}

.bme-badge-warning {
  background: var(--bme-warning-100);
  color: var(--bme-warning-700);
}

.bme-badge-error {
  background: var(--bme-error-100);
  color: var(--bme-error-700);
}

.bme-badge-gray {
  background: var(--bme-gray-100);
  color: var(--bme-gray-700);
}

/* Input Components */
.bme-input,
.bme-textarea,
.bme-select {
  width: 100%;
  padding: var(--bme-space-3);
  font-size: var(--bme-text-base);
  font-family: var(--bme-font-sans);
  color: var(--bme-gray-900);
  background: white;
  border: 1px solid var(--bme-gray-300);
  border-radius: var(--bme-radius-md);
  transition: all var(--bme-transition-fast);
}

.bme-input:focus,
.bme-textarea:focus,
.bme-select:focus {
  outline: none;
  border-color: var(--bme-primary-500);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.bme-input::placeholder,
.bme-textarea::placeholder {
  color: var(--bme-gray-400);
}

.bme-textarea {
  min-height: 100px;
  resize: vertical;
}

.bme-label {
  display: block;
  margin-bottom: var(--bme-space-2);
  font-size: var(--bme-text-sm);
  font-weight: 500;
  color: var(--bme-gray-700);
}

.bme-form-group {
  margin-bottom: var(--bme-space-4);
}

/* Alert Components */
.bme-alert {
  padding: var(--bme-space-4);
  border-radius: var(--bme-radius-md);
  margin-bottom: var(--bme-space-4);
}

.bme-alert-success {
  background: var(--bme-success-50);
  color: var(--bme-success-800);
  border: 1px solid var(--bme-success-200);
}

.bme-alert-warning {
  background: var(--bme-warning-50);
  color: var(--bme-warning-800);
  border: 1px solid var(--bme-warning-200);
}

.bme-alert-error {
  background: var(--bme-error-50);
  color: var(--bme-error-800);
  border: 1px solid var(--bme-error-200);
}

.bme-alert-info {
  background: var(--bme-primary-50);
  color: var(--bme-primary-800);
  border: 1px solid var(--bme-primary-200);
}

/* Grid System */
.bme-grid {
  display: grid;
  gap: var(--bme-space-6);
}

.bme-grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.bme-grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.bme-grid-cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* Flex Utilities */
.bme-flex {
  display: flex;
}

.bme-flex-col {
  flex-direction: column;
}

.bme-items-center {
  align-items: center;
}

.bme-justify-between {
  justify-content: space-between;
}

.bme-gap-2 { gap: var(--bme-space-2); }
.bme-gap-4 { gap: var(--bme-space-4); }
.bme-gap-6 { gap: var(--bme-space-6); }

/* Spacing Utilities */
.bme-mt-4 { margin-top: var(--bme-space-4); }
.bme-mb-4 { margin-bottom: var(--bme-space-4); }
.bme-p-4 { padding: var(--bme-space-4); }
.bme-p-6 { padding: var(--bme-space-6); }

/* Responsive Design */
@media (max-width: 768px) {
  .bme-grid-cols-2,
  .bme-grid-cols-3,
  .bme-grid-cols-4 {
    grid-template-columns: 1fr;
  }
  
  .bme-card {
    padding: var(--bme-space-4);
  }
}