@media (max-width: 768px) {
    .app { grid-template-columns: 1fr; grid-template-rows: 56px 1fr; }
    .app-topbar { grid-column: 1; grid-row: 1; padding: 0 12px 0 60px; }
    .main { grid-column: 1; grid-row: 2; padding: 1rem; }
    .form-grid { grid-template-columns: 1fr; }
    .form-grid-3 { grid-template-columns: 1fr; }

    /* Botão hambúrguer fixo no topo */
    .mobile-menu-btn {
      display: flex !important;
    }
    #sidebar-toggle { display: none !important; }

    /* Sidebar vira drawer (gaveta) */
    .sidebar {
      display: flex !important;
      position: fixed;
      top: 0; left: 0;
      width: 280px;
      height: 100vh;
      z-index: 1000;
      transform: translateX(-100%);
      transition: transform 0.3s ease;
      overflow-y: auto;
      box-shadow: 0 0 40px rgba(0,0,0,0.5);
      padding-top: 64px !important; /* Espaço pra não tampar com botões */
    }
    .sidebar.open {
      transform: translateX(0);
    }
    .sidebar-overlay {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(0,0,0,0.6);
      backdrop-filter: blur(4px);
      -webkit-backdrop-filter: blur(4px);
      z-index: 999;
    }
    .sidebar-overlay.show {
      display: block;
    }

    /* MOBILE: desligar efeitos pesados pra parar de piscar */
    body::before { display: none !important; }
    body::after { display: none !important; }

    .login-wrap::before { animation: none !important; }
    .login-bg-orb {
      filter: blur(60px) !important;
      animation: none !important;
      opacity: 0.3 !important;
    }
    .orb-3 { display: none !important; }
    .login-bg-grid { animation: none !important; opacity: 0.3 !important; }
    .login-particles { display: none !important; }
    .login-card::before { animation: none !important; }
    .login-brand-logo { animation: none !important; }
    .login-brand-logo::before, .login-brand-logo::after { animation: none !important; }
    .login-brand-title { animation: none !important; }
    .btn-wow { animation: none !important; }
    .btn-primary { animation: none !important; }

    /* Glassmorphism só com blur leve em mobile (economiza GPU) */
    .login-card {
      backdrop-filter: blur(10px) !important;
      -webkit-backdrop-filter: blur(10px) !important;
    }
    .sidebar, .panel, .kpi-card, .filters, .filters-row-2, .pagination, .task, .kanban-column, .kanban-card {
      backdrop-filter: blur(6px) !important;
      -webkit-backdrop-filter: blur(6px) !important;
    }

    /* Header dos botões de tarefas em coluna no mobile */
    .page-header {
      flex-direction: column !important;
      align-items: stretch !important;
      gap: 12px;
    }
    .page-header > div:last-child {
      flex-wrap: wrap;
      gap: 8px !important;
    }
    .view-toggle { flex: 1; min-width: 0; }
    .view-btn { flex: 1; justify-content: center; }
  }

  /* Botão hambúrguer (escondido em desktop) */
  .mobile-menu-btn {
    display: none;
    position: fixed;
    top: 12px; left: 12px;
    z-index: 1001;
    width: 44px; height: 44px;
    background: rgba(15, 29, 51, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 10px;
    color: var(--text-1);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  }
  .mobile-menu-btn:active {
    transform: scale(0.95);
  }
  .mobile-close-btn {
    display: none;
    position: absolute;
    top: 14px; right: 14px;
    width: 36px; height: 36px;
    background: rgba(15, 29, 51, 0.9);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 8px;
    color: var(--text-2);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1002;
  }
  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 999;
  }
  @media (max-width: 768px) {
    .mobile-close-btn { display: flex; }
  }