:root {
  --bg: #0f1117;
  --bg2: #1a1d2e;
  --bg3: #232738;
  --text: #e1e4ed;
  --text2: #8b8fa3;
  --accent: #6c5ce7;
  --accent2: #a29bfe;
  --green: #00b894;
  --red: #ff6b6b;
  --yellow: #fdcb6e;
  --blue: #74b9ff;
  --border: #2d3142;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(0,0,0,0.3);
}

[data-theme="light"] {
  --bg: #f8f9fa;
  --bg2: #ffffff;
  --bg3: #e9ecef;
  --text: #212529;
  --text2: #6c757d;
  --border: #dee2e6;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  min-height: 100vh;
  transition: background 0.3s, color 0.3s;
}

/* Sidebar */
.sidebar {
  width: 240px;
  min-width: 240px;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: sticky;
  top: 0;
  transition: width 0.3s, min-width 0.3s;
}

.sidebar.closed {
  width: 60px;
  min-width: 60px;
}

.sidebar.closed .logo-text,
.sidebar.closed .nav-item span:not(.nav-icon),
.sidebar.closed .sidebar-footer span {
  display: none;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  border-bottom: 1px solid var(--border);
}

.logo { display: flex; align-items: center; gap: 8px; }
.logo-icon { font-size: 24px; color: var(--accent); }
.logo-text { font-weight: 700; font-size: 16px; }

.sidebar-toggle {
  background: none;
  border: none;
  color: var(--text2);
  font-size: 20px;
  cursor: pointer;
}

.sidebar-nav {
  flex: 1;
  padding: 8px;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  color: var(--text2);
  text-decoration: none;
  border-radius: var(--radius);
  margin-bottom: 2px;
  font-size: 14px;
  transition: all 0.2s;
  cursor: pointer;
}

.nav-item:hover { background: var(--bg3); color: var(--text); }
.nav-item.active { background: var(--accent); color: white; }
.nav-icon { font-size: 16px; width: 20px; text-align: center; }

.sidebar-footer {
  padding: 12px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.agent-status { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text2); }
.status-dot { width: 8px; height: 8px; border-radius: 50%; }
.status-dot.online { background: var(--green); }
.status-dot.offline { background: var(--red); }
.status-dot.warning { background: var(--yellow); }

.theme-toggle button {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
  padding: 4px;
  border-radius: 4px;
}

/* Main Content */
.main-content {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  max-width: 1200px;
}

.page-content { animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.page-title { font-size: 24px; font-weight: 700; }
.page-subtitle { font-size: 14px; color: var(--text2); margin-top: 4px; }

/* Cards */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

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

.card-title { font-size: 16px; font-weight: 600; }
.card-value { font-size: 32px; font-weight: 700; color: var(--accent); }
.card-label { font-size: 12px; color: var(--text2); margin-top: 2px; }

/* Grid */
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg2);
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn:hover { background: var(--bg3); }
.btn-primary { background: var(--accent); color: white; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent2); }
.btn-danger { background: var(--red); color: white; border-color: var(--red); }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* Tables */
.table-wrapper { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); font-size: 13px; }
th { color: var(--text2); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; }
tr:hover { background: var(--bg3); }

/* Forms */
input, textarea, select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
  transition: border-color 0.2s;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
}

textarea { min-height: 120px; resize: vertical; font-family: 'SF Mono', 'Fira Code', monospace; }

.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 12px; color: var(--text2); margin-bottom: 4px; font-weight: 600; }

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
}

.badge-success { background: rgba(0,184,148,0.15); color: var(--green); }
.badge-warning { background: rgba(253,203,110,0.15); color: var(--yellow); }
.badge-danger { background: rgba(255,107,107,0.15); color: var(--red); }
.badge-info { background: rgba(116,185,255,0.15); color: var(--blue); }

/* Charts */
.chart-container {
  position: relative;
  height: 250px;
  margin: 16px 0;
}

/* Loading */
.loading { text-align: center; padding: 60px; color: var(--text2); }

/* Toast */
.toast-container {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  box-shadow: var(--shadow);
  font-size: 13px;
  animation: slideIn 0.3s ease;
  max-width: 360px;
}

.toast.success { border-left: 3px solid var(--green); }
.toast.error { border-left: 3px solid var(--red); }
.toast.info { border-left: 3px solid var(--blue); }

@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* Skill Cards */
.skill-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  transition: all 0.2s;
  cursor: pointer;
}

.skill-card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow); }
.skill-card .skill-name { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.skill-card .skill-desc { font-size: 12px; color: var(--text2); }

/* Responsive */
@media (max-width: 768px) {
  .sidebar { width: 60px; min-width: 60px; }
  .sidebar .logo-text,
  .sidebar .nav-item span:not(.nav-icon),
  .sidebar .sidebar-footer span { display: none; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .main-content { padding: 16px; }
}

/* Code */
pre, code {
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 13px;
}

pre {
  background: var(--bg);
  padding: 12px;
  border-radius: var(--radius);
  overflow-x: auto;
  border: 1px solid var(--border);
}

code { background: var(--bg3); padding: 2px 4px; border-radius: 3px; }

/* Empty state */
.empty-state {
  text-align: center;
  padding: 40px;
  color: var(--text2);
}

.empty-state .icon { font-size: 40px; margin-bottom: 12px; }