/* Phase 4C.1A — UI containment + navigation reset */

/* Core viewport containment */
html, body {
  max-width: 100%;
  overflow-x: hidden;
}

.shell,
main,
.tab,
.grid,
.card,
.panel,
.topbar,
.controls,
#signalQualityWorkspace,
#effectiveness {
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
}

.shell {
  grid-template-columns: 250px minmax(0, 1fr);
}

main {
  width: 100%;
  overflow-x: hidden;
}

/* Generic grids should shrink rather than push viewport wider */
.grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.controls {
  min-width: 0;
}

select,
input,
textarea,
button {
  max-width: 100%;
  box-sizing: border-box;
}

/* Signal Quality tables: horizontal scroll stays inside the card */
#signalQualityWorkspace .sq3-card,
#signalQualityWorkspace .sq3-grid,
#signalQualityWorkspace .sq3-scroll,
#signalQualityWorkspace #sqResultCard,
#signalQualityWorkspace #sqResultSummary,
#signalQualityWorkspace #sqFindings,
#signalQualityWorkspace #sqSignals,
#signalQualityWorkspace #sqRuns {
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
}

#signalQualityWorkspace .sq3-scroll {
  width: 100%;
  overflow-x: auto !important;
  overflow-y: visible;
  -webkit-overflow-scrolling: touch;
}

#signalQualityWorkspace .sq3-table {
  width: max-content;
  min-width: 100%;
  max-width: none;
}

#signalQualityWorkspace .sq3-table th,
#signalQualityWorkspace .sq3-table td {
  white-space: nowrap;
}

#signalQualityWorkspace canvas {
  display: block;
  width: 100% !important;
  max-width: 100%;
  height: auto;
}

/* Maintenance gets a dedicated layout */
#effectiveness > .grid {
  display: grid;
  grid-template-columns:
    minmax(300px, 1.05fr)
    minmax(240px, .8fr)
    minmax(280px, 1fr);
  gap: 14px;
  align-items: start;
}

#effectiveness > .grid > .card {
  min-width: 0;
}

#effectiveness > .grid > .wide {
  grid-column: 1 / -1;
}

#effectiveness .tableWrap {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
}

#effectiveness table {
  min-width: 940px;
}

/* Keep page headers compact */
.topbar {
  align-items: flex-start;
  flex-wrap: wrap;
}

.topbar > :first-child {
  min-width: 0;
  flex: 1 1 520px;
}

.topbar .pill {
  max-width: min(420px, 100%);
  white-space: normal;
  overflow-wrap: anywhere;
}

/* Laptop */
@media (max-width: 1400px) {
  .shell {
    grid-template-columns: 220px minmax(0, 1fr);
  }

  .side {
    padding: 12px;
  }

  main {
    padding: 14px;
  }

  #effectiveness > .grid {
    grid-template-columns: minmax(300px, 1fr) minmax(280px, 1fr);
  }

  #effectiveness > .grid > .card:nth-child(3),
  #effectiveness > .grid > .wide {
    grid-column: 1 / -1;
  }
}

/* Smaller laptop/tablet */
@media (max-width: 1050px) {
  .shell {
    grid-template-columns: 190px minmax(0, 1fr);
  }

  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .wide {
    grid-column: 1 / -1;
  }

  #effectiveness > .grid {
    grid-template-columns: 1fr;
  }

  #effectiveness > .grid > .card,
  #effectiveness > .grid > .card:nth-child(3),
  #effectiveness > .grid > .wide {
    grid-column: 1;
  }
}

@media (max-width: 760px) {
  .shell {
    display: block;
  }

  .side {
    position: static;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  main {
    padding: 12px;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .wide {
    grid-column: 1;
  }
}