:root {
  color-scheme: dark;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  color: var(--text, #f4f0df);
  background: var(--background, #080d19);
  font-family: var(--font-ui, system-ui);
}
main {
  max-width: 1400px;
  padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right))
    max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  margin: auto;
}
header,
.actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
header h1 {
  flex: 1;
  font-size: clamp(1.25rem, 4vw, 2rem);
}
a {
  color: #ffda71;
}
section {
  padding: 12px;
  border: 1px solid #76959d;
  margin-block: 12px;
}
#setup {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr));
  gap: 12px;
}
label {
  display: grid;
  gap: 6px;
  min-width: 0;
}
select,
input,
button {
  min-height: 48px;
  max-width: 100%;
  font: inherit;
  border: 2px solid #8ae3f2;
  padding: 8px 12px;
  background: #172331;
  color: #fff8e9;
  border-radius: 4px;
}
button {
  cursor: pointer;
  touch-action: manipulation;
}
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid #ffda71;
  outline-offset: 3px;
}
button:disabled,
.room-invitation-actions button[aria-disabled='true'] {
  opacity: 0.5;
  cursor: default;
}
input {
  width: 100%;
}
.identity {
  font-family: monospace;
  overflow-wrap: anywhere;
  color: #bbc8c8;
  font-size: 0.8rem;
}
#boards {
  display: grid;
  gap: 12px;
  align-items: center;
}
#boards.paired {
  grid-template-columns: 1fr 1fr;
}
canvas {
  display: block;
  width: 100%;
  max-height: 62dvh;
  object-fit: contain;
  border: 2px solid #8ae3f2;
  image-rendering: pixelated;
}
#controls {
  display: flex;
  justify-content: center;
  gap: 8px;
  position: sticky;
  bottom: max(0px, env(safe-area-inset-bottom));
  padding: 8px;
  background: #080d19ee;
}
#controls button {
  min-width: 48px;
  min-height: 56px;
}
#notice,
#result {
  color: #ffda71;
  min-height: 1.5em;
}
.room-invitation-actions {
  padding: 0;
  border: 0;
  min-width: 0;
}
.room-invitation-actions img {
  display: block;
  width: min(100%, 20rem);
  height: auto;
  margin-block: 12px;
}
.room-invitation-actions [role='status'] {
  min-height: 1.5em;
  overflow-wrap: anywhere;
}
[hidden] {
  display: none !important;
}
@media (max-width: 650px) {
  #boards.paired {
    grid-template-columns: 1fr;
  }
  #support {
    font-size: 0.7rem;
    padding: 4px;
    flex: 1;
  }
  #controls {
    gap: 4px;
  }
  #controls button {
    min-width: 44px;
  }
}

.selection-source,
#share-selection {
  grid-column: 1 / -1;
}
.accepted-content {
  border-block: 1px solid #76959d;
  padding-block: 12px;
  margin-block: 12px;
}
.accepted-content h2 {
  font-size: 1.1rem;
  margin: 0;
}
.accepted-content summary {
  min-height: 44px;
  padding-block: 12px;
  cursor: pointer;
}
.accepted-content pre {
  white-space: pre-wrap;
}
#result-scope {
  font-size: 0.85rem;
  color: #bbc8c8;
}

/* Shared title/menus own preparation; the active scene uses measured space. */
#room-source {
  display: contents;
}
#room-source > header {
  display: none;
}
.mode-play-shell section {
  margin: 0;
  border: 0;
}
#room-play {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto auto;
  padding: 4px 8px;
  min-height: 0;
  overflow: hidden;
}
#room-live-status {
  font-size: 0.85rem;
  margin: 2px 0 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
#boards {
  min-height: 0;
  min-width: 0;
  gap: 8px;
  /* The canvas is absolute: its card must fill the allocated grid track so
     the measured board slot cannot collapse to the HUD's intrinsic height. */
  align-items: stretch;
}
#boards[data-arrangement='paired'] {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: minmax(0, 1fr);
}
#boards[data-arrangement='stacked'] {
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: repeat(2, minmax(0, 1fr));
}
.room-board {
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}
.room-hud {
  display: flex;
  flex-wrap: wrap;
  gap: 2px 12px;
  font-size: 0.8rem;
  padding: 3px;
}
.room-hud > span:last-child {
  flex-basis: 100%;
}
.room-board-wrap {
  position: relative;
  min-height: 0;
  min-width: 0;
}
#boards canvas {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: auto;
  max-width: 100%;
  max-height: 100%;
  touch-action: none;
}
#controls {
  position: static;
  padding: 4px 0;
  min-width: 0;
  background: transparent;
  flex-wrap: wrap;
}
.direction-controls,
.room-equipment {
  display: flex;
  gap: 4px;
  justify-content: center;
  min-width: 0;
}
#controls button {
  min-height: 56px;
  min-width: 44px;
  padding: 6px 10px;
}
.room-equipment button {
  font-size: 0.8rem;
}
#room-play #result {
  display: none;
}
#room-settings label {
  margin-block: 8px;
}
#room-settings label:has(input[type='checkbox']) {
  display: flex;
  align-items: center;
  gap: 8px;
}
#room-settings input[type='checkbox'] {
  width: 24px;
  height: 24px;
  min-height: 24px;
}
#room-settings :is(img, canvas) {
  max-width: 100%;
}
.room-mode-links {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 4px;
}
.room-mode-links a {
  padding: 8px 4px !important;
  font-size: 0.85rem !important;
  text-decoration: none;
}
#room-settings .theme-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(180px, 100%), 1fr));
  gap: 8px;
}
#room-settings .theme-gallery button {
  min-width: 0;
}
#room-settings .theme-gallery canvas {
  position: static;
  width: 100%;
  max-height: 150px;
}
@media (max-width: 480px) {
  #room-play {
    padding-inline: 4px;
  }
  .room-mode-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .room-hud {
    font-size: 0.7rem;
    gap: 2px 6px;
  }
  #controls {
    gap: 4px;
  }
}
/* Match room-input's layout boundary, including narrow keyboard/hybrid windows. */
@media (max-height: 500px) and (orientation: landscape) and (max-width: 899px),
  (max-height: 500px) and (orientation: landscape) and (pointer: coarse) {
  #room-play {
    grid-template: auto minmax(0, 1fr) auto / minmax(0, 1fr) auto;
  }
  #room-live-status {
    grid-column: 1/-1;
  }
  #boards {
    grid-area: 2 / 1;
  }
  #room-reaction-caption {
    grid-row: 3;
    grid-column: 1 / -1;
  }
  #controls {
    grid-column: 2;
    grid-row: 2;
    align-self: center;
    flex-direction: column;
  }
  .direction-controls {
    display: grid;
    grid-template-columns: repeat(2, 44px);
  }
  .room-equipment {
    display: grid;
    grid-template-columns: repeat(2, minmax(44px, 1fr));
    max-width: 200px;
  }
  .room-equipment button {
    min-width: 0;
    overflow-wrap: anywhere;
  }
  #controls button {
    min-height: 44px;
  }
}