/**
 * OpenClaw Shared Component Library
 * Version: 2.0
 * 
 * This file provides consistent, accessible, and responsive UI components
 * across all dashboard and business applications.
 * 
 * Features:
 * - CSS custom properties (variables) for theming
 * - Accessible focus states and ARIA support
 * - Responsive breakpoints
 * - Performance optimized animations
 * - High contrast mode support
 */

/* ============================================
   CSS CUSTOM PROPERTIES (VARIABLES)
   ============================================ */

:root {
  /* Color Palette - Primary */
  --color-primary: #2563eb;
  --color-primary-dark: #1d4ed8;
  --color-primary-light: #3b82f6;
  --color-primary-contrast: #ffffff;
  
  /* Color Palette - Semantic */
  --color-success: #10b981;
  --color-success-dark: #059669;
  --color-warning: #f59e0b;
  --color-warning-dark: #d97706;
  --color-danger: #ef4444;
  --color-danger-dark: #dc2626;
  --color-info: #3b82f6;
  
  /* Color Palette - Neutral (Light Mode) */
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;
  
  /* Dark Mode Colors */
  --color-dark-bg: #0d1117;
  --color-dark-surface: #161b22;
  --color-dark-elevated: #21262d;
  --color-dark-border: #30363d;
  --color-dark-text: #c9d1d9;
  --color-dark-text-secondary: #8b949e;
  
  /* Spacing Scale */
  --space-xs: 0.25rem;   /* 4px */
  --space-sm: 0.5rem;    /* 8px */
  --space-md: 1rem;      /* 16px */
  --space-lg: 1.5rem;    /* 24px */
  --space-xl: 2rem;      /* 32px */
  --space-2xl: 3rem;     /* 48px */
  --space-3xl: 4rem;     /* 64px */
  
  /* Typography Scale */
  --font-xs: 0.75rem;    /* 12px */
  --font-sm: 0.875rem;   /* 14px */
  --font-base: 1rem;     /* 16px */
  --font-lg: 1.125rem;   /* 18px */
  --font-xl: 1.25rem;    /* 20px */
  --font-2xl: 1.5rem;    /* 24px */
  --font-3xl: 1.875rem;  /* 30px */
  --font-4xl: 2.25rem;   /* 36px */
  
  /* Font Families */
  --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Roboto', sans-serif;
  --font-mono: 'Consolas', 'Monaco', 'SF Mono', monospace;
  
  /* Border Radius */
  --radius-sm: 0.25rem;  /* 4px */
  --radius-md: 0.375rem; /* 6px */
  --radius-lg: 0.5rem;   /* 8px */
  --radius-xl: 0.75rem;  /* 12px */
  --radius-2xl: 1rem;    /* 16px */
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 15px rgba(37, 99, 235, 0.3);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
  
  /* Z-Index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
  --z-popover: 1050;
  --z-tooltip: 1060;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -moz-tab-size: 4;
  tab-size: 4;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-base);
  line-height: 1.6;
  color: var(--color-gray-800);
  background-color: var(--color-gray-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Dark mode class support */
body.dark-mode {
  color: var(--color-dark-text);
  background-color: var(--color-dark-bg);
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

/* Skip link for keyboard navigation */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: var(--color-primary-contrast);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-weight: 600;
  z-index: calc(var(--z-tooltip) + 1);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-sm);
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

/* Focus visible styles */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  :root {
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
    --shadow-xl: none;
  }
  
  .btn,
  .card,
  .input {
    border-width: 2px;
  }
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: inherit;
  margin-bottom: var(--space-sm);
}

h1 { font-size: var(--font-3xl); }
h2 { font-size: var(--font-2xl); }
h3 { font-size: var(--font-xl); }
h4 { font-size: var(--font-lg); }
h5 { font-size: var(--font-base); }
h6 { font-size: var(--font-sm); }

p {
  margin-bottom: var(--space-md);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

a:focus-visible {
  border-radius: var(--radius-sm);
}

/* ============================================
   LAYOUT COMPONENTS
   ============================================ */

/* Container */
.container {
  width: 100%;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

@media (min-width: 640px) {
  .container {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }
}

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

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-auto { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }

@media (max-width: 1024px) {
  .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 { grid-template-columns: 1fr; }
}

/* Flexbox utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.flex-wrap { flex-wrap: wrap; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-sm);
  font-weight: 500;
  line-height: 1.5;
  color: var(--color-gray-700);
  background-color: var(--color-gray-100);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  min-height: 36px;
  min-width: 36px;
}

.btn:hover {
  background-color: var(--color-gray-200);
  border-color: var(--color-gray-400);
  text-decoration: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

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

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

.btn-secondary {
  color: var(--color-gray-700);
  background-color: var(--color-gray-200);
  border-color: var(--color-gray-300);
}

.btn-success {
  color: #ffffff;
  background-color: var(--color-success);
  border-color: var(--color-success);
}

.btn-success:hover {
  background-color: var(--color-success-dark);
  border-color: var(--color-success-dark);
}

.btn-danger {
  color: #ffffff;
  background-color: var(--color-danger);
  border-color: var(--color-danger);
}

.btn-danger:hover {
  background-color: var(--color-danger-dark);
  border-color: var(--color-danger-dark);
}

/* Button sizes */
.btn-sm {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-xs);
  min-height: 28px;
}

.btn-lg {
  padding: var(--space-md) var(--space-lg);
  font-size: var(--font-lg);
  min-height: 48px;
}

/* Button states */
.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

/* ============================================
   CARDS
   ============================================ */

.card {
  background-color: #ffffff;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

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

.dark-mode .card {
  background-color: var(--color-dark-surface);
  border-color: var(--color-dark-border);
}

.card-header {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.dark-mode .card-header {
  border-color: var(--color-dark-border);
}

.card-body {
  padding: var(--space-lg);
}

.card-footer {
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--color-gray-200);
  background-color: var(--color-gray-50);
}

.dark-mode .card-footer {
  border-color: var(--color-dark-border);
  background-color: var(--color-dark-elevated);
}

/* ============================================
   FORMS
   ============================================ */

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

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

.dark-mode .form-label {
  color: var(--color-dark-text);
}

.form-input,
.form-select,
.form-textarea {
  display: block;
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-base);
  line-height: 1.5;
  color: var(--color-gray-900);
  background-color: #ffffff;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 40px;
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
  border-color: var(--color-gray-400);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
  background-color: var(--color-gray-100);
  cursor: not-allowed;
}

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

.form-hint {
  margin-top: var(--space-xs);
  font-size: var(--font-xs);
  color: var(--color-gray-500);
}

.form-error {
  margin-top: var(--space-xs);
  font-size: var(--font-xs);
  color: var(--color-danger);
}

/* ============================================
   TABLES
   ============================================ */

.table-container {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-sm);
}

.table th,
.table td {
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--color-gray-200);
}

.dark-mode .table th,
.dark-mode .table td {
  border-color: var(--color-dark-border);
}

.table th {
  font-weight: 600;
  color: var(--color-gray-600);
  text-transform: uppercase;
  font-size: var(--font-xs);
  letter-spacing: 0.05em;
  background-color: var(--color-gray-50);
}

.dark-mode .table th {
  background-color: var(--color-dark-elevated);
  color: var(--color-dark-text-secondary);
}

.table tbody tr:hover {
  background-color: var(--color-gray-50);
}

.dark-mode .table tbody tr:hover {
  background-color: var(--color-dark-elevated);
}

/* ============================================
   BADGES
   ============================================ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-xs);
  font-weight: 600;
  line-height: 1;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.badge-success {
  color: var(--color-success-dark);
  background-color: #d1fae5;
}

.badge-warning {
  color: var(--color-warning-dark);
  background-color: #fef3c7;
}

.badge-danger {
  color: var(--color-danger-dark);
  background-color: #fee2e2;
}

.badge-info {
  color: #1e40af;
  background-color: #dbeafe;
}

.dark-mode .badge-success { background-color: rgba(16, 185, 129, 0.2); color: var(--color-success); }
.dark-mode .badge-warning { background-color: rgba(245, 158, 11, 0.2); color: var(--color-warning); }
.dark-mode .badge-danger { background-color: rgba(239, 68, 68, 0.2); color: var(--color-danger); }
.dark-mode .badge-info { background-color: rgba(59, 130, 246, 0.2); color: var(--color-info); }

/* ============================================
   ALERTS
   ============================================ */

.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  border-left: 4px solid;
  margin-bottom: var(--space-md);
}

.alert-success {
  background-color: #d1fae5;
  border-color: var(--color-success);
  color: #065f46;
}

.alert-warning {
  background-color: #fef3c7;
  border-color: var(--color-warning);
  color: #92400e;
}

.alert-danger {
  background-color: #fee2e2;
  border-color: var(--color-danger);
  color: #991b1b;
}

.alert-info {
  background-color: #dbeafe;
  border-color: var(--color-info);
  color: #1e40af;
}

/* ============================================
   NAVIGATION
   ============================================ */

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  color: var(--color-gray-600);
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-primary);
  background-color: var(--color-gray-100);
  text-decoration: none;
}

.nav-link.active {
  color: var(--color-primary);
  background-color: rgba(37, 99, 235, 0.1);
}

.dark-mode .nav-link {
  color: var(--color-dark-text-secondary);
}

.dark-mode .nav-link:hover {
  color: var(--color-primary-light);
  background-color: var(--color-dark-elevated);
}

/* ============================================
   HEADER
   ============================================ */

.app-header {
  background-color: #ffffff;
  border-bottom: 1px solid var(--color-gray-200);
  padding: var(--space-md) 0;
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.dark-mode .app-header {
  background-color: var(--color-dark-surface);
  border-color: var(--color-dark-border);
}

.app-header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.app-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-xl);
  font-weight: 700;
  color: var(--color-gray-900);
}

.dark-mode .app-logo {
  color: var(--color-dark-text);
}

/* ============================================
   STATUS INDICATORS
   ============================================ */

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background-color: var(--color-gray-400);
}

.status-dot-success { background-color: var(--color-success); }
.status-dot-warning { background-color: var(--color-warning); }
.status-dot-danger { background-color: var(--color-danger); }

.status-pulse {
  animation: statusPulse 2s infinite;
}

@keyframes statusPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ============================================
   PROGRESS BARS
   ============================================ */

.progress {
  height: 8px;
  background-color: var(--color-gray-200);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background-color: var(--color-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}

.progress-bar-success { background-color: var(--color-success); }
.progress-bar-warning { background-color: var(--color-warning); }
.progress-bar-danger { background-color: var(--color-danger); }

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { 
    opacity: 0;
    transform: translateY(20px);
  }
  to { 
    opacity: 1;
    transform: translateY(0);
  }
}

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

.animate-fade-in {
  animation: fadeIn var(--transition-slow);
}

.animate-slide-up {
  animation: slideUp var(--transition-slow);
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */

@media (max-width: 768px) {
  .hide-mobile { display: none !important; }
  
  h1 { font-size: var(--font-2xl); }
  h2 { font-size: var(--font-xl); }
  h3 { font-size: var(--font-lg); }
  
  .app-header-content {
    flex-direction: column;
    text-align: center;
  }
  
  .nav {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .card-header {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (min-width: 769px) {
  .hide-desktop { display: none !important; }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  .app-header,
  .nav,
  .btn {
    display: none !important;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #000;
    break-inside: avoid;
  }
  
  body {
    background: white !important;
    color: black !important;
  }
}

/* ============================================
   SCROLLBAR STYLING
   ============================================ */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--color-gray-400);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-gray-500);
}

.dark-mode ::-webkit-scrollbar-track {
  background: var(--color-dark-elevated);
}

.dark-mode ::-webkit-scrollbar-thumb {
  background: var(--color-dark-border);
}