/* Koder Cloud - Theme System */
:root {
  color-scheme: light;
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #e9ecef;
  --bg-sidebar: #1a1d23;
  --text-primary: #212529;
  --text-secondary: #6c757d;
  --text-sidebar: #a0aec0;
  --text-sidebar-active: #ffffff;
  --border-color: #dee2e6;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --card-bg: #ffffff;
  --card-shadow: 0 1px 3px rgba(0,0,0,0.1);
  --input-bg: #ffffff;
  --input-border: #ced4da;
  --topbar-bg: #ffffff;
  --topbar-border: #e5e7eb;
  --badge-bg: #e5e7eb;
  --gpu-green: #22c55e;
  --gpu-yellow: #f59e0b;
  --gpu-red: #ef4444;
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg-primary: #0f1117;
  --bg-secondary: #1a1d23;
  --bg-tertiary: #242830;
  --bg-sidebar: #0d0f14;
  --text-primary: #e5e7eb;
  --text-secondary: #9ca3af;
  --text-sidebar: #6b7280;
  --text-sidebar-active: #f9fafb;
  --border-color: #2d3139;
  --accent: #3b82f6;
  --accent-hover: #60a5fa;
  --card-bg: #1a1d23;
  --card-shadow: 0 1px 3px rgba(0,0,0,0.3);
  --input-bg: #242830;
  --input-border: #374151;
  --topbar-bg: #1a1d23;
  --topbar-border: #2d3139;
  --badge-bg: #374151;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: var(--bg-primary); color: var(--text-primary); }

/* Layout */
#app { display: flex; min-height: 100vh; }

.sidebar {
  width: 240px;
  background: var(--bg-sidebar);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  transition: transform 0.2s;
}
.sidebar.collapsed { transform: translateX(-240px); }

.sidebar-header {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 18px;
  font-weight: 600;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.sidebar-title { white-space: nowrap; }

.sidebar-nav { padding: 8px 0; flex: 1; overflow-y: auto; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: var(--text-sidebar);
  text-decoration: none;
  font-size: 14px;
  transition: all 0.15s;
  border-left: 3px solid transparent;
}
.nav-item:hover { color: var(--text-sidebar-active); background: rgba(255,255,255,0.05); }
.nav-item.active { color: var(--text-sidebar-active); background: rgba(59,130,246,0.15); border-left-color: var(--accent); }

#main {
  flex: 1;
  margin-left: 240px;
  display: flex;
  flex-direction: column;
  transition: margin-left 0.2s;
}
.sidebar.collapsed ~ #main { margin-left: 0; }

.topbar {
  height: 56px;
  background: var(--topbar-bg);
  border-bottom: 1px solid var(--topbar-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar-left, .topbar-right { display: flex; align-items: center; gap: 12px; }

.icon-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  display: flex;
  align-items: center;
}
.icon-btn:hover { background: var(--bg-tertiary); color: var(--text-primary); }

.user-info { font-size: 13px; color: var(--text-secondary); }

.content { padding: 24px; flex: 1; }

/* Cards */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 20px;
  box-shadow: var(--card-shadow);
}

.card-title { font-size: 13px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 8px; }
.card-value { font-size: 28px; font-weight: 700; }
.card-sub { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }

/* Tables */
.table-container {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

table { width: 100%; border-collapse: collapse; }
th {
  text-align: left;
  padding: 12px 16px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}
td {
  padding: 12px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--border-color);
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg-secondary); }

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 9999px;
  font-size: 12px;
  font-weight: 500;
}
.badge-active, .badge-running, .badge-available { background: rgba(34,197,94,0.15); color: #16a34a; }
.badge-pending, .badge-creating, .badge-starting { background: rgba(245,158,11,0.15); color: #d97706; }
.badge-offline, .badge-error, .badge-stopped, .badge-failed { background: rgba(239,68,68,0.15); color: #dc2626; }
.badge-maintenance, .badge-stopping { background: rgba(59,130,246,0.15); color: #2563eb; }
.badge-allocated { background: rgba(139,92,246,0.15); color: #7c3aed; }

[data-theme="dark"] .badge-active, [data-theme="dark"] .badge-running, [data-theme="dark"] .badge-available { background: rgba(34,197,94,0.2); color: #4ade80; }
[data-theme="dark"] .badge-pending, [data-theme="dark"] .badge-creating, [data-theme="dark"] .badge-starting { background: rgba(245,158,11,0.2); color: #fbbf24; }
[data-theme="dark"] .badge-offline, [data-theme="dark"] .badge-error, [data-theme="dark"] .badge-stopped, [data-theme="dark"] .badge-failed { background: rgba(239,68,68,0.2); color: #f87171; }
[data-theme="dark"] .badge-maintenance, [data-theme="dark"] .badge-stopping { background: rgba(59,130,246,0.2); color: #60a5fa; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* Section header */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.section-title { font-size: 22px; font-weight: 700; }

/* GPU card */
.gpu-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  box-shadow: var(--card-shadow);
}
.gpu-card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.gpu-model { font-weight: 600; font-size: 14px; }
.gpu-bar { height: 8px; background: var(--bg-tertiary); border-radius: 4px; overflow: hidden; margin: 4px 0; }
.gpu-bar-fill { height: 100%; border-radius: 4px; transition: width 0.3s; }
.gpu-stat { display: flex; justify-content: space-between; font-size: 12px; color: var(--text-secondary); margin-top: 6px; }

/* Progress bar */
.progress { height: 6px; background: var(--bg-tertiary); border-radius: 3px; overflow: hidden; }
.progress-fill { height: 100%; border-radius: 3px; background: var(--accent); }

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}
.modal {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 24px;
  min-width: 400px;
  max-width: 90vw;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.modal-title { font-size: 18px; font-weight: 700; margin-bottom: 16px; }

/* Forms */
.form-group { margin-bottom: 14px; }
.form-label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 4px; color: var(--text-secondary); }
.form-input, .form-select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--input-border);
  border-radius: 6px;
  background: var(--input-bg);
  color: var(--text-primary);
  font-size: 14px;
}
.form-input:focus, .form-select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(59,130,246,0.15); }

/* Token display */
.token-display {
  background: var(--bg-tertiary);
  padding: 12px;
  border-radius: 6px;
  font-family: monospace;
  font-size: 14px;
  word-break: break-all;
  user-select: all;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-secondary);
}
.empty-state svg { margin-bottom: 12px; opacity: 0.5; }
.empty-state p { font-size: 14px; }

/* Responsive */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-240px); }
  .sidebar.open { transform: translateX(0); }
  #main { margin-left: 0; }
  .cards-grid { grid-template-columns: 1fr 1fr; }
}