/* Garazyk Admin UI - Master Design System
 *
 * This is the main entry point for the UI server design system.
 * All individual modules are inlined here for single-file serving.
 * Original modular versions are in the shared/ source directory.
 */

/* === tokens.css === */
/* Apple HIG-aligned color tokens and CSS variables
 * Migrated to OKLCH for perceptually uniform color manipulation
 * Brand hue: warm strawberry red (~15) at low chroma for tinted neutrals
 */
:root {
  /* Light mode semantic colors - OKLCH */
  --color-bg-primary: oklch(96% 0.003 200);
  --color-bg-secondary: oklch(99% 0.003 200);
  --color-bg-tertiary: oklch(93% 0.005 200);
  --color-text-primary: oklch(13% 0.005 200);
  --color-text-secondary: oklch(45% 0.005 200);
  --color-text-tertiary: oklch(60% 0.003 200);

  /* Brand accent - Apple blue with OKLCH */
  --color-accent: oklch(52% 0.18 255);

  /* Action colors */
  --color-destructive: oklch(58% 0.22 25);
  --color-success: oklch(60% 0.18 145);
  --color-warning: oklch(75% 0.18 70);
  --color-info: oklch(60% 0.15 210);

  /* Strawberry brand tint on neutrals - subtle warmth */
  --color-bg-secondary-tinted: oklch(99% 0.004 15);

  /* Separators and borders */
  --separator-color: oklch(85% 0.003 200);
  --separator-color-secondary: oklch(91% 0.002 200);

  /* System font stack */
  --font-system: -apple-system, BlinkMacSystemFont, "SF Pro Text",
                 "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  /* Font sizes - 5-step scale with ~1.25 ratio for clear hierarchy */
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-md: 15px;
  --font-size-lg: 19px;
  --font-size-xl: 24px;
  --font-size-2xl: 30px;

  /* Line heights */
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Spacing scale - 4pt grid per design system best practices */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;
  --space-2xl: 32px;
  --space-3xl: 48px;
  --space-4xl: 64px;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-full: 50%;

  /* Shadows */
  --shadow-sm: 0 1px 3px oklch(0% 0 0 / 0.08);
  --shadow-md: 0 2px 8px oklch(0% 0 0 / 0.12);
  --shadow-lg: 0 4px 16px oklch(0% 0 0 / 0.15);

  /* Z-index scale */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 20;
  --z-fixed: 30;
  --z-modal: 1000;
  --z-tooltip: 1100;

  /* Transitions */
  --transition-fast: 0.1s ease;
  --transition-normal: 0.15s ease;
  --transition-slow: 0.3s ease;
}

/* Dark mode overrides - OKLCH with brand tint on backgrounds */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg-primary: oklch(15% 0.005 200);
    --color-bg-secondary: oklch(22% 0.006 200);
    --color-bg-tertiary: oklch(28% 0.007 200);
    --color-text-primary: oklch(96% 0.003 200);
    --color-text-secondary: oklch(70% 0.005 200);
    --color-text-tertiary: oklch(55% 0.004 200);
    --color-bg-secondary-tinted: oklch(22% 0.008 15);
    --separator-color: oklch(32% 0.005 200);
    --separator-color-secondary: oklch(28% 0.004 200);
    --shadow-sm: 0 1px 3px oklch(0% 0 0 / 0.3);
    --shadow-md: 0 2px 8px oklch(0% 0 0 / 0.4);
    --shadow-lg: 0 4px 16px oklch(0% 0 0 / 0.5);
  }
}

/* === reset.css === */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-system);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
}
h1, h2, h3, h4, h5, h6 { font-weight: 600; line-height: var(--line-height-tight); margin: 0; }
h1 { font-size: var(--font-size-2xl); }
h2 { font-size: var(--font-size-xl); }
h3 { font-size: var(--font-size-lg); }
h4, h5, h6 { font-size: var(--font-size-md); }
p { margin: 0; }
a { color: var(--color-accent); text-decoration: none; cursor: pointer; transition: color var(--transition-fast); }
a:hover { opacity: 0.8; }
a:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; border-radius: var(--radius-md); }
button:focus-visible { outline-offset: -2px; }
input, textarea, select {
  font-family: var(--font-system);
  font-size: var(--font-size-sm);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--separator-color);
  border-radius: var(--radius-md);
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast);
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.1);
}
input:disabled, textarea:disabled, select:disabled { opacity: 0.5; cursor: not-allowed; }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--color-bg-primary); }
::-webkit-scrollbar-thumb { background: var(--color-bg-tertiary); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--separator-color); }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border-width: 0;
}

/* === components.css (selected) === */
/* Buttons */
.btn {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all var(--transition-normal);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  white-space: nowrap;
  user-select: none;
  min-height: 28px;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--color-accent); color: white; }
.btn-primary:hover:not(:disabled) { background: #0066cc; box-shadow: var(--shadow-md); }
.btn-secondary { background: var(--color-bg-tertiary); color: var(--color-text-primary); border: 1px solid var(--separator-color); }
.btn-secondary:hover:not(:disabled) { background: var(--separator-color); }
.btn-destructive { background: var(--color-destructive); color: white; }
.btn-destructive:hover:not(:disabled) { background: #ff3b30; box-shadow: var(--shadow-md); }
.btn-sm { padding: 4px 8px; font-size: var(--font-size-xs); min-height: 24px; }

/* Tables */
.table {
  width: 100%; border-collapse: collapse; font-size: var(--font-size-sm);
  background: var(--color-bg-secondary); border-radius: var(--radius-md);
  overflow: hidden; box-shadow: var(--shadow-sm);
}
.table thead { background: var(--color-bg-tertiary); font-weight: 600; }
.table th { padding: var(--space-md); text-align: left; color: var(--color-text-primary); border-bottom: 1px solid var(--separator-color); }
.table td { padding: var(--space-md); border-bottom: 1px solid var(--separator-color-secondary); color: var(--color-text-primary); }
.table tbody tr { transition: background var(--transition-fast); }
.table tbody tr:hover { background: var(--color-bg-tertiary); }
.table tbody tr:last-child td { border-bottom: none; }

/* Cards */
.card {
  padding: var(--space-lg); border: 1px solid var(--separator-color);
  border-radius: var(--radius-lg); background: var(--color-bg-secondary);
  box-shadow: var(--shadow-sm);
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: var(--space-md); padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--separator-color-secondary);
}
.card-title { font-size: var(--font-size-lg); font-weight: 600; color: var(--color-text-primary); }

/* Badges */
.badge {
  display: inline-flex; align-items: center; padding: 4px 8px;
  border-radius: var(--radius-md); font-size: var(--font-size-xs);
  font-weight: 500; white-space: nowrap;
}
.badge-success { background: rgba(52, 199, 89, 0.1); color: var(--color-success); }
.badge-warning { background: rgba(255, 149, 0, 0.1); color: var(--color-warning); }
.badge-destructive { background: rgba(255, 69, 58, 0.1); color: var(--color-destructive); }
.badge-secondary { background: var(--color-bg-tertiary); color: var(--color-text-secondary); }

/* Alerts */
.alert {
  padding: var(--space-md) var(--space-lg); border-radius: var(--radius-lg);
  border: 1px solid; display: flex; align-items: flex-start;
  gap: var(--space-md); margin-bottom: var(--space-md);
}
.alert-info { background: rgba(48, 176, 192, 0.08); border-color: var(--color-info); color: var(--color-info); }
.alert-success { background: rgba(52, 199, 89, 0.08); border-color: var(--color-success); color: var(--color-success); }
.alert-warning { background: rgba(255, 149, 0, 0.08); border-color: var(--color-warning); color: var(--color-warning); }
.alert-destructive { background: rgba(255, 69, 58, 0.08); border-color: var(--color-destructive); color: var(--color-destructive); }

/* Stat cards */
.stat-card {
  padding: var(--space-md); border-radius: var(--radius-lg);
  background: var(--color-bg-secondary); border: 1px solid var(--separator-color);
}
.stat-label {
  font-size: var(--font-size-xs); color: var(--color-text-secondary);
  margin-bottom: var(--space-sm); text-transform: uppercase;
  letter-spacing: 0.5px; font-weight: 500;
}
.stat-value {
  font-size: var(--font-size-2xl); font-weight: 600;
  color: var(--color-text-primary); line-height: var(--line-height-tight);
}

/* Metric blocks */
.metric-row {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-md);
}
.metric {
  display: flex; flex-direction: column; gap: var(--space-xs);
  padding: var(--space-md); border: 1px solid var(--separator-color);
  border-radius: var(--radius-md); background: var(--color-bg-tertiary);
}
.metric-label {
  color: var(--color-text-secondary); font-size: var(--font-size-xs);
  text-transform: uppercase; letter-spacing: 0.4px; font-weight: 600;
}
.metric-value { color: var(--color-text-primary); font-size: var(--font-size-lg); font-weight: 600; }
.metric-value.status-healthy, .metric-value.status-ok { color: var(--color-success); }
.metric-value.status-warning { color: var(--color-warning); }
.metric-value.status-critical, .metric-value.status-error { color: var(--color-destructive); }

/* Tabs */
.tabs { display: flex; gap: 0; border-bottom: 1px solid var(--separator-color); }
.tab {
  padding: var(--space-md) var(--space-lg); border: none; background: transparent;
  color: var(--color-text-secondary); cursor: pointer; font-size: var(--font-size-sm);
  font-weight: 500; transition: all var(--transition-normal);
  border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab:hover { color: var(--color-text-primary); }
.tab.active { color: var(--color-accent); border-bottom-color: var(--color-accent); }

/* Progress */
.progress { width: 100%; height: 4px; background: var(--color-bg-tertiary); border-radius: var(--radius-full); overflow: hidden; }
.progress-bar { height: 100%; background: var(--color-accent); transition: width var(--transition-normal); }

/* Code blocks */
code {
  background: var(--color-bg-tertiary); padding: 2px 6px;
  border-radius: var(--radius-sm); font-family: "Monaco", "Menlo", "Courier New", monospace;
  font-size: 0.9em; color: var(--color-destructive);
}
pre {
  background: var(--color-bg-tertiary); padding: var(--space-md);
  border-radius: var(--radius-lg); overflow-x: auto;
  font-family: "Monaco", "Menlo", "Courier New", monospace;
  font-size: var(--font-size-xs); line-height: var(--line-height-relaxed);
  color: var(--color-text-primary);
}
pre code { background: none; padding: 0; color: inherit; }

/* Loading */
.loading-indicator {
  display: inline-block; width: 16px; height: 16px;
  border: 2px solid var(--color-bg-tertiary); border-top-color: var(--color-accent);
  border-radius: var(--radius-full); animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Skeleton loading */
.skeleton {
  background: linear-gradient(90deg, var(--color-bg-tertiary) 25%, var(--color-bg-secondary) 50%, var(--color-bg-tertiary) 75%);
  background-size: 200% 100%; animation: shimmer 1.5s ease infinite; border-radius: var(--radius-md);
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* === layout.css (selected for admin shell) === */
/* Admin shell layout */
.admin-shell {
  display: flex; flex-direction: column; min-height: 100vh;
  background: var(--color-bg-primary);
}
.admin-header {
  height: 52px; background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--separator-color);
  display: flex; align-items: center; padding: 0 var(--space-lg);
  gap: var(--space-md); flex-shrink: 0; z-index: var(--z-sticky);
}
.admin-header-title { font-size: var(--font-size-md); font-weight: 600; color: var(--color-text-primary); }
.admin-header-right { margin-left: auto; display: flex; align-items: center; gap: var(--space-md); }

/* Service segments - NSSegmentedControl inspired */
.service-segments {
  display: flex; gap: 0; border-radius: var(--radius-md);
  background: var(--color-bg-tertiary); padding: 3px;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1);
}
.service-segment {
  padding: 6px 14px; border-radius: var(--radius-sm);
  font-size: var(--font-size-sm); font-weight: 500;
  color: var(--color-text-secondary); background: transparent;
  border: none; cursor: pointer; transition: all var(--transition-normal);
}
.service-segment:hover:not(.active) { color: var(--color-text-primary); }
.service-segment.active {
  background: var(--color-bg-secondary); color: var(--color-text-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

/* Main content area */
.admin-content {
  flex: 1; padding: var(--space-xl); overflow-y: auto;
  background: var(--color-bg-primary);
}

/* Content sections */
.admin-section {
  padding: var(--space-lg); border: 1px solid var(--separator-color);
  border-radius: var(--radius-lg); background: var(--color-bg-secondary);
  box-shadow: var(--shadow-sm); margin-bottom: var(--space-lg);
}
.admin-section-title {
  font-size: var(--font-size-lg); font-weight: 600;
  color: var(--color-text-primary); margin-bottom: var(--space-md);
  padding-bottom: var(--space-md); border-bottom: 1px solid var(--separator-color-secondary);
}

/* Status bar */
.admin-footer {
  height: 44px; background: var(--color-bg-secondary);
  border-top: 1px solid var(--separator-color);
  padding: 0 var(--space-md); display: flex; align-items: center;
  justify-content: space-between; font-size: var(--font-size-xs);
  color: var(--color-text-secondary); flex-shrink: 0;
}
.status-indicator {
  width: 8px; height: 8px; border-radius: var(--radius-full); display: inline-block;
}
.status-indicator.connected { background: var(--color-success); }
.status-indicator.disconnected { background: var(--color-destructive); }
.status-indicator.pending { background: var(--color-warning); animation: pulse 1.5s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

/* Search row */
.search-row {
  display: flex; gap: var(--space-sm); align-items: center; margin-bottom: var(--space-md);
}
.search-row input { flex: 1; }

/* Action row */
.action-row {
  display: flex; gap: var(--space-sm); align-items: center; margin-top: var(--space-md);
}

/* HTMX integration */
.htmx-request .htmx-indicator { display: inline-block; }
.htmx-indicator { display: none; }
.htmx-request .btn-text { opacity: 0; }
.htmx-request .btn { pointer-events: none; }
.htmx-swapped { animation: fadeIn 0.15s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.htmx-error { border-color: var(--color-destructive) !important; }

/* Empty state */
.empty-state {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; padding: var(--space-2xl); text-align: center;
}
.empty-state-title { font-size: var(--font-size-lg); font-weight: 600; color: var(--color-text-primary); margin-bottom: var(--space-sm); }
.empty-state-description { font-size: var(--font-size-sm); color: var(--color-text-secondary); margin-bottom: var(--space-lg); }

/* Terminal/Log viewer */
.terminal-window {
  background: #0a0a0a; border-radius: var(--radius-lg); padding: var(--space-md);
  font-family: "Monaco", "Menlo", "Courier New", monospace;
  font-size: var(--font-size-xs); overflow: auto; max-height: 400px; border: 1px solid #333;
}
.terminal-content { color: #f5f5f7; white-space: pre-wrap; word-break: break-all; }

/* Cluster Dashboard Styles */
.cluster-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
  margin-top: var(--space-md);
}

.service-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--separator-color);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  position: relative;
  overflow: hidden;
}

.service-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.service-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--separator-color-secondary);
  padding-bottom: var(--space-sm);
}

.service-name {
  font-weight: 700;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
}

.service-url {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-primary);
  word-break: break-all;
}

.service-meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  box-shadow: 0 0 8px transparent;
}

/* Status variants using OKLCH manipulation */
.status-online .status-dot {
  background: var(--color-success);
  box-shadow: 0 0 8px color-mix(in oklch, var(--color-success) 40%, transparent);
}

.status-offline .status-dot {
  background: var(--color-text-tertiary);
}

.status-error .status-dot {
  background: var(--color-destructive);
  box-shadow: 0 0 8px color-mix(in oklch, var(--color-destructive) 40%, transparent);
}

.status-online {
  border-left: 4px solid var(--color-success);
}

.status-offline {
  border-left: 4px solid var(--color-text-tertiary);
}

.status-error {
  border-left: 4px solid var(--color-destructive);
}


/* === utilities.css (selected) === */
.d-flex { display: flex !important; }
.d-grid { display: grid !important; }
.flex-row { flex-direction: row !important; }
.flex-col { flex-direction: column !important; }
.flex-wrap { flex-wrap: wrap !important; }
.justify-between { justify-content: space-between !important; }
.justify-center { justify-content: center !important; }
.items-center { align-items: center !important; }
.gap-xs { gap: var(--space-xs) !important; }
.gap-sm { gap: var(--space-sm) !important; }
.gap-md { gap: var(--space-md) !important; }
.gap-lg { gap: var(--space-lg) !important; }
.flex-1 { flex: 1 !important; }
.p-0 { padding: 0 !important; }
.p-sm { padding: var(--space-sm) !important; }
.p-md { padding: var(--space-md) !important; }
.p-lg { padding: var(--space-lg) !important; }
.p-xl { padding: var(--space-xl) !important; }
.m-0 { margin: 0 !important; }
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.mb-sm { margin-bottom: var(--space-sm) !important; }
.mb-md { margin-bottom: var(--space-md) !important; }
.mb-lg { margin-bottom: var(--space-lg) !important; }
.mt-sm { margin-top: var(--space-sm) !important; }
.mt-md { margin-top: var(--space-md) !important; }
.text-xs { font-size: var(--font-size-xs) !important; }
.text-sm { font-size: var(--font-size-sm) !important; }
.text-md { font-size: var(--font-size-md) !important; }
.text-lg { font-size: var(--font-size-lg) !important; }
.font-medium { font-weight: 500 !important; }
.font-semibold { font-weight: 600 !important; }
.text-center { text-align: center !important; }
.text-primary { color: var(--color-text-primary) !important; }
.text-secondary { color: var(--color-text-secondary) !important; }
.text-accent { color: var(--color-accent) !important; }
.text-destructive { color: var(--color-destructive) !important; }
.text-success { color: var(--color-success) !important; }
.text-warning { color: var(--color-warning) !important; }
.w-full { width: 100% !important; }
.overflow-auto { overflow: auto !important; }
.overflow-x-auto { overflow-x: auto !important; }
.word-break-all { word-break: break-all !important; }
.text-mono { font-family: "Monaco", "Menlo", "Courier New", monospace !important; }
.stack { display: flex; flex-direction: column; gap: var(--space-md); }
.h-stack { display: flex; flex-direction: row; gap: var(--space-md); }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--space-md); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-md); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-md); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-md); }
.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow-md { box-shadow: var(--shadow-md) !important; }
.rounded-lg { border-radius: var(--radius-lg) !important; }
.rounded-md { border-radius: var(--radius-md) !important; }
.border { border: 1px solid var(--separator-color) !important; }
.border-b { border-bottom: 1px solid var(--separator-color) !important; }
.hidden { display: none !important; }
.select-none { user-select: none !important; }
.cursor-pointer { cursor: pointer !important; }
@media (max-width: 540px) {
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
}