body {
    font-family: 'Inter', system-ui, sans-serif;
    margin: 0;
    background: #f9fafb;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding-bottom: 120px;
  }
  
  /* Header */
  .topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    background: #fff;
    border-bottom: 1px solid #e5e7eb;
  }
  
  .topbar .left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }
  
  .logo svg {
    display: block;
  }
  
  .btn.ghost {
    background: transparent;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 0.5rem 1rem;
    font-weight: 500;
    cursor: pointer;
  }
  
  .btn.ghost:hover {
    background: #f3f4f6;
  }
  
  /* Container */
  .container {
    flex: 1;
    padding: 2rem;
    text-align: center;
  }
  
  /* Bottom Navigation */
  .tabbar {
    display: flex;
    justify-content: space-around;
    background: #fff;
    border-top: 1px solid #e5e7eb;
    padding: 0.5rem 0;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
  }
  
  .tab {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #6b7280;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
  }
  
  .tab:hover {
    color: #4f46e5;
  }
  
  .tab.active, .tab:focus {
    color: #4f46e5;
    font-weight: 600;
  }
  
  .dot {
    font-size: 18px;
    line-height: 12px;
  }