/*
 * OpenClaw Cloud Design System
 * Unified styling for all frontend pages
 * 
 * Colors:
 * - Primary: #E85D40 (coral)
 * - Light mode: BG #FFFBF7, Card #FFFFFF, Text #1A1714, Border #E8E2DA
 * - Dark mode: BG #0C0A09, Card #1C1917, Text #FAFAF9, Border #292524
 */

/* ===== CSS Reset ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ===== CSS Variables ===== */
:root {
  /* Brand */
  --oc-primary: #E85D40;
  --oc-primary-hover: #D64D30;
  --oc-primary-light: rgba(232, 93, 64, 0.1);
  
  /* Typography */
  --oc-font-headline: 'Instrument Serif', Georgia, serif;
  --oc-font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --oc-font-mono: ui-monospace, 'SF Mono', 'Cascadia Code', monospace;
  
  /* Transitions */
  --oc-transition: 0.2s ease;
  --oc-transition-slow: 0.3s ease;
  
  /* Radius */
  --oc-radius-sm: 8px;
  --oc-radius-md: 12px;
  --oc-radius-lg: 16px;
  --oc-radius-full: 100px;
  
  /* Shadows */
  --oc-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --oc-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --oc-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  
  /* Status Colors */
  --oc-success: #22C55E;
  --oc-success-light: rgba(34, 197, 94, 0.1);
  --oc-warning: #F59E0B;
  --oc-warning-light: rgba(245, 158, 11, 0.1);
  --oc-error: #EF4444;
  --oc-error-light: rgba(239, 68, 68, 0.1);
  --oc-info: #3B82F6;
  --oc-info-light: rgba(59, 130, 246, 0.1);
}

/* Light Mode (default) */
:root, [data-theme="light"] {
  --oc-bg: #FFFBF7;
  --oc-bg-card: #FFFFFF;
  --oc-bg-hover: #FFF8F2;
  --oc-text: #1A1714;
  --oc-text-muted: #78716C;
  --oc-text-dim: #A8A29E;
  --oc-border: #E8E2DA;
  --oc-border-strong: #D6CFC6;
}

/* Dark Mode */
[data-theme="dark"] {
  --oc-bg: #0C0A09;
  --oc-bg-card: #1C1917;
  --oc-bg-hover: #292524;
  --oc-text: #FAFAF9;
  --oc-text-muted: #A8A29E;
  --oc-text-dim: #78716C;
  --oc-border: #292524;
  --oc-border-strong: #44403C;
  
  --oc-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --oc-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --oc-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
}

/* System preference auto-detection */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --oc-bg: #0C0A09;
    --oc-bg-card: #1C1917;
    --oc-bg-hover: #292524;
    --oc-text: #FAFAF9;
    --oc-text-muted: #A8A29E;
    --oc-text-dim: #78716C;
    --oc-border: #292524;
    --oc-border-strong: #44403C;
    
    --oc-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --oc-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --oc-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.4);
  }
}

/* ===== Base Styles ===== */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--oc-font-body);
  background: var(--oc-bg);
  color: var(--oc-text);
  line-height: 1.6;
  min-height: 100vh;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--oc-font-headline);
  font-weight: 400;
  line-height: 1.2;
  color: var(--oc-text);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

.oc-headline {
  font-family: var(--oc-font-headline);
}

.oc-body {
  font-family: var(--oc-font-body);
}

.oc-text-muted {
  color: var(--oc-text-muted);
}

.oc-text-dim {
  color: var(--oc-text-dim);
}

/* ===== Logo ===== */
.oc-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.oc-logo-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.oc-logo-img.sm { width: 32px; height: 32px; }
.oc-logo-img.lg { width: 56px; height: 56px; }
.oc-logo-img.xl { width: 80px; height: 80px; }

.oc-logo-text {
  font-family: var(--oc-font-headline);
  font-size: 1.5rem;
  color: var(--oc-text);
}

.oc-logo-text span {
  color: var(--oc-primary);
}

/* ===== Cards ===== */
.oc-card {
  background: var(--oc-bg-card);
  border: 1px solid var(--oc-border);
  border-radius: var(--oc-radius-md);
  padding: 24px;
  box-shadow: var(--oc-shadow-sm);
  transition: box-shadow var(--oc-transition), border-color var(--oc-transition);
}

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

.oc-card.interactive:hover {
  border-color: var(--oc-primary);
}

.oc-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.oc-card-title {
  font-family: var(--oc-font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--oc-text);
}

.oc-card-subtitle {
  font-size: 0.875rem;
  color: var(--oc-text-muted);
  margin-top: 4px;
}

/* ===== Buttons ===== */
.oc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--oc-radius-full);
  font-family: var(--oc-font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--oc-transition);
  border: none;
  white-space: nowrap;
}

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

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

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

/* Secondary Button */
.oc-btn-secondary {
  background: var(--oc-bg-card);
  color: var(--oc-text);
  border: 1px solid var(--oc-border);
}

.oc-btn-secondary:hover:not(:disabled) {
  background: var(--oc-bg-hover);
  border-color: var(--oc-border-strong);
}

/* Ghost Button */
.oc-btn-ghost {
  background: transparent;
  color: var(--oc-text-muted);
}

.oc-btn-ghost:hover:not(:disabled) {
  background: var(--oc-bg-hover);
  color: var(--oc-text);
}

/* Button Sizes */
.oc-btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}

.oc-btn-lg {
  padding: 16px 32px;
  font-size: 1rem;
}

.oc-btn-full {
  width: 100%;
}

/* ===== Form Elements ===== */
.oc-form-group {
  margin-bottom: 20px;
}

.oc-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--oc-text-muted);
  margin-bottom: 8px;
}

.oc-input {
  width: 100%;
  padding: 14px 16px;
  background: var(--oc-bg);
  border: 1px solid var(--oc-border);
  border-radius: var(--oc-radius-sm);
  color: var(--oc-text);
  font-family: var(--oc-font-body);
  font-size: 1rem;
  transition: border-color var(--oc-transition), box-shadow var(--oc-transition);
}

.oc-input::placeholder {
  color: var(--oc-text-dim);
}

.oc-input:focus {
  outline: none;
  border-color: var(--oc-primary);
  box-shadow: 0 0 0 3px var(--oc-primary-light);
}

.oc-input:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.oc-select {
  width: 100%;
  padding: 14px 40px 14px 16px;
  background: var(--oc-bg);
  border: 1px solid var(--oc-border);
  border-radius: var(--oc-radius-sm);
  color: var(--oc-text);
  font-family: var(--oc-font-body);
  font-size: 1rem;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2378716C' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  transition: border-color var(--oc-transition);
}

.oc-select:focus {
  outline: none;
  border-color: var(--oc-primary);
}

.oc-hint {
  font-size: 0.8125rem;
  color: var(--oc-text-dim);
  margin-top: 6px;
}

/* ===== Status Badges ===== */
.oc-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--oc-radius-full);
  font-size: 0.8125rem;
  font-weight: 500;
}

.oc-badge-success {
  background: var(--oc-success-light);
  color: var(--oc-success);
}

.oc-badge-warning {
  background: var(--oc-warning-light);
  color: var(--oc-warning);
}

.oc-badge-error {
  background: var(--oc-error-light);
  color: var(--oc-error);
}

.oc-badge-info {
  background: var(--oc-info-light);
  color: var(--oc-info);
}

.oc-badge-neutral {
  background: var(--oc-bg-hover);
  color: var(--oc-text-muted);
}

.oc-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

.oc-dot.pulse {
  animation: oc-pulse 2s infinite;
}

@keyframes oc-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ===== Alerts ===== */
.oc-alert {
  padding: 16px;
  border-radius: var(--oc-radius-sm);
  font-size: 0.9375rem;
  margin-bottom: 16px;
}

.oc-alert-error {
  background: var(--oc-error-light);
  border: 1px solid var(--oc-error);
  color: var(--oc-error);
}

.oc-alert-success {
  background: var(--oc-success-light);
  border: 1px solid var(--oc-success);
  color: var(--oc-success);
}

.oc-alert-warning {
  background: var(--oc-warning-light);
  border: 1px solid var(--oc-warning);
  color: var(--oc-warning);
}

.oc-alert-info {
  background: var(--oc-info-light);
  border: 1px solid var(--oc-info);
  color: var(--oc-info);
}

/* ===== Code/Mono ===== */
.oc-code {
  font-family: var(--oc-font-mono);
  font-size: 0.875rem;
  background: var(--oc-bg);
  padding: 6px 12px;
  border-radius: var(--oc-radius-sm);
  border: 1px solid var(--oc-border);
}

/* ===== Tables ===== */
.oc-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--oc-bg-card);
  border-radius: var(--oc-radius-md);
  overflow: hidden;
  box-shadow: var(--oc-shadow-sm);
}

.oc-table th,
.oc-table td {
  padding: 16px;
  text-align: left;
  border-bottom: 1px solid var(--oc-border);
}

.oc-table th {
  background: var(--oc-bg-hover);
  font-weight: 600;
  font-size: 0.75rem;
  color: var(--oc-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.oc-table tr:hover {
  background: var(--oc-bg-hover);
}

/* ===== Grid Layouts ===== */
.oc-grid {
  display: grid;
  gap: 24px;
}

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

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

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

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

@media (max-width: 768px) {
  .oc-grid-2,
  .oc-grid-3,
  .oc-grid-4 { grid-template-columns: 1fr; }
}

/* ===== Stats ===== */
.oc-stat {
  background: var(--oc-bg-card);
  border: 1px solid var(--oc-border);
  border-radius: var(--oc-radius-md);
  padding: 20px;
  text-align: center;
}

.oc-stat-label {
  font-size: 0.75rem;
  color: var(--oc-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.oc-stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--oc-text);
}

.oc-stat-value.success { color: var(--oc-success); }
.oc-stat-value.warning { color: var(--oc-warning); }
.oc-stat-value.error { color: var(--oc-error); }
.oc-stat-value.primary { color: var(--oc-primary); }

/* ===== Progress Bar ===== */
.oc-progress {
  height: 8px;
  background: var(--oc-border);
  border-radius: var(--oc-radius-full);
  overflow: hidden;
}

.oc-progress-fill {
  height: 100%;
  background: var(--oc-primary);
  border-radius: var(--oc-radius-full);
  transition: width 0.5s ease;
}

/* ===== Theme Toggle ===== */
.oc-theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--oc-bg-card);
  border: 1px solid var(--oc-border);
  border-radius: var(--oc-radius-sm);
  cursor: pointer;
  transition: all var(--oc-transition);
  font-size: 1.25rem;
}

.oc-theme-toggle:hover {
  background: var(--oc-bg-hover);
  border-color: var(--oc-border-strong);
}

/* Sun/Moon icons */
.oc-theme-toggle .sun { display: none; }
.oc-theme-toggle .moon { display: block; }

[data-theme="dark"] .oc-theme-toggle .sun { display: block; }
[data-theme="dark"] .oc-theme-toggle .moon { display: none; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .oc-theme-toggle .sun { display: block; }
  :root:not([data-theme]) .oc-theme-toggle .moon { display: none; }
}

/* ===== Spinner ===== */
.oc-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--oc-border);
  border-top-color: var(--oc-primary);
  border-radius: 50%;
  animation: oc-spin 0.8s linear infinite;
}

.oc-spinner.sm { width: 16px; height: 16px; border-width: 2px; }
.oc-spinner.lg { width: 32px; height: 32px; border-width: 3px; }

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

/* ===== Container ===== */
.oc-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.oc-container-sm { max-width: 540px; }
.oc-container-md { max-width: 720px; }
.oc-container-lg { max-width: 960px; }

/* ===== Utility Classes ===== */
.oc-hidden { display: none !important; }
.oc-text-center { text-align: center; }
.oc-text-right { text-align: right; }
.oc-flex { display: flex; }
.oc-flex-center { display: flex; align-items: center; justify-content: center; }
.oc-flex-between { display: flex; align-items: center; justify-content: space-between; }
.oc-gap-sm { gap: 8px; }
.oc-gap-md { gap: 16px; }
.oc-gap-lg { gap: 24px; }
.oc-mt-sm { margin-top: 8px; }
.oc-mt-md { margin-top: 16px; }
.oc-mt-lg { margin-top: 24px; }
.oc-mb-sm { margin-bottom: 8px; }
.oc-mb-md { margin-bottom: 16px; }
.oc-mb-lg { margin-bottom: 24px; }

/* ===== Link ===== */
a {
  color: var(--oc-primary);
  text-decoration: none;
  transition: color var(--oc-transition);
}

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

/* ===== Theme Toggle Script Helper ===== */
/*
  Include this script to enable theme toggling:
  
  <script>
    // Theme toggle
    function toggleTheme() {
      const current = document.documentElement.getAttribute('data-theme');
      const next = current === 'dark' ? 'light' : (current === 'light' ? 'dark' : 
        (window.matchMedia('(prefers-color-scheme: dark)').matches ? 'light' : 'dark'));
      document.documentElement.setAttribute('data-theme', next);
      localStorage.setItem('oc-theme', next);
    }
    
    // Load saved theme
    const savedTheme = localStorage.getItem('oc-theme');
    if (savedTheme) {
      document.documentElement.setAttribute('data-theme', savedTheme);
    }
  </script>
*/