/* ============================================================================
 * MoonCore OS - Design System (SaaS Premium)
 * Inspiración: Linear, Vercel, Stripe
 * ============================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* -----------------------------------------
     1. DESIGN TOKENS (Variables)
  ----------------------------------------- */
  
  /* Color Palette */
  --mc-color-bg-base: #FAFAFA;
  --mc-color-bg-surface: #FFFFFF;
  --mc-color-bg-subtle: #F4F4F5;
  
  --mc-color-primary: #000000;
  --mc-color-primary-hover: #1A1A1A;
  --mc-color-primary-muted: #E5E5E5;
  
  --mc-color-accent: #3B82F6; /* Vercel/Stripe Blue */
  --mc-color-accent-hover: #2563EB;
  
  /* Typography Colors */
  --mc-text-primary: #111811;
  --mc-text-secondary: #52525B;
  --mc-text-tertiary: #A1A1AA;
  --mc-text-inverse: #FFFFFF;
  
  /* Semantic Colors */
  --mc-color-success: #10B981;
  --mc-color-success-bg: #D1FAE5;
  --mc-color-error: #EF4444;
  --mc-color-error-bg: #FEE2E2;
  --mc-color-warning: #F59E0B;
  --mc-color-warning-bg: #FEF3C7;
  
  /* Borders & Dividers */
  --mc-border-color: #E4E4E7;
  --mc-border-light: #F4F4F5;
  
  /* Spacing */
  --mc-space-1: 4px;
  --mc-space-2: 8px;
  --mc-space-3: 12px;
  --mc-space-4: 16px;
  --mc-space-5: 24px;
  --mc-space-6: 32px;
  --mc-space-8: 48px;
  
  /* Border Radius */
  --mc-radius-sm: 4px;
  --mc-radius-md: 8px;
  --mc-radius-lg: 12px;
  --mc-radius-xl: 16px;
  --mc-radius-full: 9999px;
  
  /* Shadows (Soft & Crisp) */
  --mc-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --mc-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --mc-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
  --mc-shadow-float: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
  
  /* Typography */
  --mc-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  /* Transitions */
  --mc-transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --mc-transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* -----------------------------------------
   2. BASE & TYPOGRAPHY
----------------------------------------- */
/* Scoped to not break legacy, but available for new components */
.mc-theme {
  font-family: var(--mc-font-sans);
  color: var(--mc-text-primary);
  background-color: var(--mc-color-bg-base);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.mc-title {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--mc-text-primary);
  margin-bottom: var(--mc-space-2);
}

.mc-subtitle {
  font-size: 0.875rem;
  color: var(--mc-text-secondary);
  font-weight: 400;
}

/* -----------------------------------------
   3. COMPONENTS
----------------------------------------- */

/* Buttons */
.mc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--mc-space-2) var(--mc-space-4);
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--mc-font-sans);
  border-radius: var(--mc-radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--mc-transition-fast);
  gap: var(--mc-space-2);
  outline: none;
}

.mc-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.mc-btn-primary {
  background-color: var(--mc-color-primary);
  color: var(--mc-text-inverse);
  box-shadow: var(--mc-shadow-sm);
}

.mc-btn-primary:hover:not(:disabled) {
  background-color: var(--mc-color-primary-hover);
  transform: translateY(-1px);
}

.mc-btn-secondary {
  background-color: var(--mc-color-bg-surface);
  color: var(--mc-text-primary);
  border-color: var(--mc-border-color);
  box-shadow: var(--mc-shadow-sm);
}

.mc-btn-secondary:hover:not(:disabled) {
  background-color: var(--mc-color-bg-subtle);
}

.mc-btn-accent {
  background-color: var(--mc-color-accent);
  color: var(--mc-text-inverse);
  box-shadow: var(--mc-shadow-sm);
}

.mc-btn-accent:hover:not(:disabled) {
  background-color: var(--mc-color-accent-hover);
}

/* Inputs & Selects */
.mc-input, .mc-select {
  width: 100%;
  padding: var(--mc-space-2) var(--mc-space-3);
  font-family: var(--mc-font-sans);
  font-size: 0.875rem;
  color: var(--mc-text-primary);
  background-color: var(--mc-color-bg-surface);
  border: 1px solid var(--mc-border-color);
  border-radius: var(--mc-radius-md);
  transition: all var(--mc-transition-fast);
  box-shadow: var(--mc-shadow-sm);
  outline: none;
}

.mc-input:focus, .mc-select:focus {
  border-color: var(--mc-color-accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.mc-input::placeholder {
  color: var(--mc-text-tertiary);
}

.mc-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--mc-text-secondary);
  margin-bottom: var(--mc-space-1);
}

/* Cards */
.mc-card {
  background-color: var(--mc-color-bg-surface);
  border: 1px solid var(--mc-border-color);
  border-radius: var(--mc-radius-lg);
  padding: var(--mc-space-5);
  box-shadow: var(--mc-shadow-sm);
  transition: box-shadow var(--mc-transition-fast);
}

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

/* Badges */
.mc-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--mc-space-2);
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: var(--mc-radius-full);
}

.mc-badge-success {
  background-color: var(--mc-color-success-bg);
  color: var(--mc-color-success);
}

.mc-badge-error {
  background-color: var(--mc-color-error-bg);
  color: var(--mc-color-error);
}

.mc-badge-neutral {
  background-color: var(--mc-color-bg-subtle);
  color: var(--mc-text-secondary);
}

/* Modals */
.mc-modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--mc-transition-normal);
}

.mc-modal-overlay.is-active {
  opacity: 1;
  pointer-events: auto;
}

.mc-modal {
  background-color: var(--mc-color-bg-surface);
  border-radius: var(--mc-radius-xl);
  box-shadow: var(--mc-shadow-float);
  width: 100%;
  max-width: 500px;
  overflow: hidden;
  transform: scale(0.95);
  transition: transform var(--mc-transition-normal);
}

.mc-modal-overlay.is-active .mc-modal {
  transform: scale(1);
}

.mc-modal-header {
  padding: var(--mc-space-4) var(--mc-space-5);
  border-bottom: 1px solid var(--mc-border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mc-modal-body {
  padding: var(--mc-space-5);
}

.mc-modal-footer {
  padding: var(--mc-space-4) var(--mc-space-5);
  background-color: var(--mc-color-bg-subtle);
  border-top: 1px solid var(--mc-border-color);
  display: flex;
  justify-content: flex-end;
  gap: var(--mc-space-3);
}

/* Tables */
.mc-table-container {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--mc-border-color);
  border-radius: var(--mc-radius-lg);
  background-color: var(--mc-color-bg-surface);
}

.mc-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

.mc-table th {
  background-color: var(--mc-color-bg-subtle);
  color: var(--mc-text-secondary);
  font-weight: 500;
  padding: var(--mc-space-3) var(--mc-space-4);
  border-bottom: 1px solid var(--mc-border-color);
}

.mc-table td {
  padding: var(--mc-space-3) var(--mc-space-4);
  border-bottom: 1px solid var(--mc-border-light);
  color: var(--mc-text-primary);
}

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

.mc-table tr:hover td {
  background-color: var(--mc-color-bg-base);
}

/* States & Utilities */
.mc-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--mc-space-8) var(--mc-space-4);
  text-align: center;
  color: var(--mc-text-tertiary);
}

.mc-loader {
  border: 2px solid var(--mc-border-color);
  border-top-color: var(--mc-text-secondary);
  border-radius: 50%;
  width: 20px;
  height: 20px;
  animation: mc-spin 1s linear infinite;
}

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