/* ========== LAYOUT ========== */
.app { display: flex; min-height: 100vh; }

/* ========== SIDEBAR ========== */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 40;
  overflow-y: auto;
  transition: transform var(--transition);
}
.sidebar-brand {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}
.sidebar-brand h1 { font-size: 16px; font-weight: 700; color: var(--text-primary); line-height: 1.2; }
.sidebar-brand p { font-size: 11px; color: var(--text-muted); font-weight: 500; letter-spacing: 0.02em; }

.sidebar-nav { flex: 1; padding: 12px 10px; overflow-y: auto; }
.nav-section { margin-bottom: 6px; }
.nav-section-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 12px 12px 6px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  transition: all var(--transition);
  cursor: pointer;
  width: 100%;
  text-align: left;
}
.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-item.active { background: var(--bg-active); color: var(--accent); font-weight: 600; }
.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; opacity: 0.7; }
.nav-item.active svg { opacity: 1; }
.nav-item .badge {
  margin-left: auto;
  background: var(--accent-light);
  color: var(--accent-text);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 10px;
}

.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
}
.auth-status {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius);
  background: var(--success-bg);
}
.auth-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--success);
  flex-shrink: 0;
}
.auth-dot.disconnected { background: var(--danger); }
.auth-info { font-size: 11px; color: var(--success-text); font-weight: 500; line-height: 1.3; }
.auth-info span { display: block; font-weight: 600; }

/* ========== MAIN ========== */
.main { margin-left: var(--sidebar-w); flex: 1; display: flex; flex-direction: column; min-height: 100vh; }

/* ========== HEADER ========== */
.header {
  height: var(--header-h);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 30;
}
.header-left { display: flex; align-items: center; gap: 16px; }
.header-title { font-size: 18px; font-weight: 700; color: var(--text-primary); }
.header-breadcrumb { font-size: 12px; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }
.header-breadcrumb svg { width: 12px; height: 12px; }
.header-right { display: flex; align-items: center; gap: 12px; }

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 280px;
  transition: all var(--transition);
}
.search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-light); }
.search-box svg { width: 16px; height: 16px; color: var(--text-muted); flex-shrink: 0; }
.search-box input {
  border: none;
  outline: none;
  background: transparent;
  font-size: 13px;
  color: var(--text-primary);
  width: 100%;
}
.search-box input::placeholder { color: var(--text-muted); }
.search-box kbd {
  font-size: 10px;
  padding: 2px 6px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-muted);
  font-family: var(--font);
  font-weight: 600;
}

.header-btn {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius);
  color: var(--text-secondary);
  transition: all var(--transition);
  position: relative;
}
.header-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.header-btn svg { width: 18px; height: 18px; }
.header-btn .dot {
  position: absolute;
  top: 6px; right: 6px;
  width: 7px; height: 7px;
  background: var(--danger);
  border-radius: 50%;
  border: 2px solid var(--bg-card);
}

/* ========== CONTENT ========== */
.content { flex: 1; padding: 28px; }