/* ===== Sidebar ===== */
.sidebar {
  background: linear-gradient(180deg, #0E1424 0%, #0B101C 100%);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: var(--space-4) var(--space-3);
  gap: var(--space-2);
  z-index: var(--z-sidebar);
  position: relative;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3) var(--space-4);
  margin-bottom: var(--space-2);
  border-bottom: 1px solid var(--border);
}

.brand-mark {
  width: 34px; height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent-chat), var(--accent-violet));
  display: grid; place-items: center;
  box-shadow: var(--glow-chat);
  flex-shrink: 0;
}
.brand-mark svg { width: 18px; height: 18px; color: #fff; }

.brand-name {
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: 0.01em;
  line-height: 1.1;
}
.brand-sub {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.nav-group { display: flex; flex-direction: column; gap: 2px; }

.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 10px var(--space-3);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease;
}

.nav-item:hover { background: var(--panel-raised); color: var(--text-primary); }

.nav-item.active {
  background: var(--panel-active);
  color: var(--text-primary);
  border-color: var(--border-lit);
  box-shadow: 0 0 0 1px rgba(108,140,255,0.08), 0 6px 20px rgba(0,0,0,0.35);
}
.nav-item.active::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 8px;
  bottom: 8px;
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--accent-chat), var(--accent-violet));
  box-shadow: 0 0 10px rgba(108,140,255,0.6);
}

.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }
.nav-item.active svg { color: var(--accent-chat); }

.nav-sep {
  height: 1px;
  background: var(--border);
  margin: var(--space-3) 0;
}

.sidebar-footer {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  border-top: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 13px;
}

.avatar {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-chat), var(--accent-violet));
  display: grid; place-items: center;
  font-size: 12px; font-weight: 700; color: #fff;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.08);
}

/* ===== Topbar ===== */
.topbar {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-5);
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(17,24,39,0.85), rgba(13,18,32,0.7));
  box-shadow: 0 1px 0 rgba(255,255,255,0.02) inset, 0 8px 24px rgba(0,0,0,0.25);
  z-index: var(--z-topbar);
  position: relative;
}

.breadcrumb { font-size: 13px; color: var(--text-secondary); }
.breadcrumb .sep { color: var(--text-muted); margin: 0 6px; }
.breadcrumb strong { color: var(--text-primary); font-weight: 600; }

.search {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 8px var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 13px;
  min-width: 240px;
  background: rgba(10,14,26,0.5);
  transition: border-color 140ms ease;
}
.search:hover { border-color: var(--border-lit); }
.search svg { width: 15px; height: 15px; color: var(--text-muted); }

.kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 2px 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--panel-raised);
  color: var(--text-muted);
}

/* ===== Panels ===== */
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-panel);
}

.panel-raised {
  background: var(--panel-raised);
  border: 1px solid var(--border-lit);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-raised);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 9px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--panel-raised);
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 600;
  transition: border-color 140ms ease, background 140ms ease, box-shadow 140ms ease;
}
.btn:hover { border-color: var(--border-lit); background: var(--panel-active); }
.btn-primary {
  border-color: rgba(108,140,255,0.5);
  color: #fff;
  background: linear-gradient(135deg, rgba(108,140,255,0.22), rgba(139,124,255,0.18));
  box-shadow: 0 0 0 1px rgba(108,140,255,0.15);
}
.btn-primary:hover { background: linear-gradient(135deg, rgba(108,140,255,0.32), rgba(139,124,255,0.26)); }

/* ===== Chips ===== */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-secondary);
}

/* ===== Status dot ===== */
.dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}
.dot.active { background: var(--success); box-shadow: 0 0 8px var(--success); }
.dot.idle { background: var(--text-muted); }
.dot.working { background: var(--accent-chat); box-shadow: 0 0 8px var(--accent-chat); animation: pulse 1.8s ease-in-out infinite; }

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

/* ===== Section title ===== */
.section-title {
  font-family: var(--font-display);
  font-size: 20px;
  margin: 0 0 var(--space-4);
  letter-spacing: 0.01em;
}

@media (prefers-reduced-motion: reduce) {
  .dot.working { animation: none; }
}