/*
 * Ajustes compartilhados para laboratórios e diagramas.
 * O canvas mantém sua resolução interna, mas cabe na largura disponível.
 */
html,
body {
  max-width: 100%;
  overflow-x: hidden;
  overflow-x: clip;
}

.lesson-section,
.algorithm-lab,
.big-o-layout,
.big-o-canvas-wrap,
.search-array-wrap,
.structure-table,
.addressing-diagram,
.canvas-container,
.canvas-container-addressing,
.multi-ram-lab,
.ram-modules,
.ram-stick,
.heap-diagram-shell,
.canvas-container-heap,
.lab-shell,
.canvas-shell,
.allocator-lab,
.allocator-layout,
.allocator-main {
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
}

.big-o-canvas-wrap,
.canvas-container,
.canvas-container-addressing,
.canvas-container-heap,
.canvas-shell {
  overflow-x: hidden !important;
}

#canvas-big-o,
#canvas-modelos,
#canvas-enderecamento,
#canvas-heap-benefits,
#canvas-ponteiros {
  display: block;
  width: 100% !important;
  max-width: 100% !important;
  height: auto !important;
  margin: 0 auto;
}

.search-array-wrap { overflow-x: hidden !important; }
.search-array {
  width: 100%;
  min-width: 0 !important;
  gap: clamp(2px, .7vw, 7px) !important;
}
.search-cell {
  width: auto !important;
  min-width: 0 !important;
  flex: 1 1 0;
}

.structure-table { overflow-x: hidden !important; }
.structure-table table {
  width: 100%;
  min-width: 0 !important;
  table-layout: fixed;
}
.structure-table th,
.structure-table td { overflow-wrap: anywhere; }

.ram-modules {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 290px), 1fr)) !important;
  overflow-x: hidden !important;
}
.ram-stick { min-width: 0 !important; }
.memory-structure {
  min-width: min(180px, 100%) !important;
  flex: 1 1 180px;
}

.heap-zone {
  min-width: 0 !important;
  grid-template-columns: repeat(4, minmax(0, 1fr)) !important;
}

@media (max-width: 760px) {
  .big-o-layout,
  .allocator-layout {
    grid-template-columns: minmax(0, 1fr) !important;
  }

  .big-o-canvas-wrap,
  .canvas-container,
  .canvas-container-addressing,
  .canvas-container-heap,
  .canvas-shell {
    padding: clamp(6px, 2.5vw, 12px) !important;
  }

  .search-array { padding: .65rem .35rem !important; }
  .search-cell {
    height: 54px !important;
    padding: 0 !important;
    font-size: clamp(.58rem, 2.5vw, .76rem);
  }

  .structure-table {
    border: 0 !important;
    background: transparent !important;
  }
  .structure-table table,
  .structure-table tbody,
  .structure-table tr,
  .structure-table td {
    display: block;
    width: 100%;
  }
  .structure-table thead { display: none; }
  .structure-table tr {
    margin-bottom: .75rem;
    overflow: hidden;
    border: 1px solid #1e2d36;
    border-radius: 9px;
    background: #10191f;
  }
  .structure-table td {
    display: grid;
    padding: .65rem .75rem !important;
    grid-template-columns: minmax(105px, .75fr) minmax(0, 1fr);
    gap: .75rem;
    border-bottom: 1px solid #1e2d36;
  }
  .structure-table td:last-child { border-bottom: 0; }
  .structure-table td::before {
    color: #64748b;
    font: 600 .62rem/1.4 ui-monospace, SFMono-Regular, Consolas, monospace;
    letter-spacing: .03em;
    text-transform: uppercase;
  }
  .structure-table td:nth-child(1)::before { content: "Estrutura"; }
  .structure-table td:nth-child(2)::before { content: "Acesso por índice"; }
  .structure-table td:nth-child(3)::before { content: "Busca"; }
  .structure-table td:nth-child(4)::before { content: "Inserção no início"; }
  .structure-table td:nth-child(5)::before { content: "Inserção no fim"; }
  .structure-table td:nth-child(6)::before { content: "Observação"; }

  .allocator-sidebar {
    border-right: 0 !important;
    border-bottom: 1px solid #1e2d36;
  }
}

@media (max-width: 520px) {
  .heap-zone {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }

  .diagram-controls,
  .heap-diagram-actions,
  .algorithm-actions {
    width: 100%;
  }

  .diagram-btn,
  .heap-diagram-btn,
  .algorithm-btn {
    flex: 1 1 auto;
  }
}