:root {
  color-scheme: dark;
  --ui-gap: 1.25em;
  --ui-gap-small: 0.5em;
  --icon-w: 3em;
  --icon-h: 2.625em;
  --icon-step: 3.625em;
  --radius: 0.5em;
  --control-w: 11.5em;
  --viewer-w: 13.625em;
  --edge-size: 2.35em;
  --bg: #061114;
  --panel: rgba(7, 19, 23, 0.66);
  --panel-strong: rgba(6, 17, 20, 0.9);
  --line: rgba(228, 255, 250, 0.22);
  --text: #f2fffb;
  --muted: #b6d5d1;
  --accent: #67e4d5;
  --accent-2: #f1cb73;
  --danger: #ff8278;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  touch-action: none;
  font-family: Inter, Segoe UI, system-ui, -apple-system, sans-serif;
  background: #123036;
  color: var(--text);
}

button,
textarea {
  font: inherit;
}

button {
  border: 0;
  color: inherit;
  cursor: pointer;
}

h1,
h2,
p {
  margin: 0;
}

.app-shell,
.screen-stage {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
}

.screen-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(var(--zoom, 1)) translate(var(--pan-x, 0%), var(--pan-y, 0%));
  transition: opacity 160ms ease;
  transform-origin: center;
  will-change: transform;
  cursor: grab;
  touch-action: none;
}

.effects-canvas {
  position: absolute;
  inset: 0;
  z-index: 2;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.screen-image.is-hidden {
  opacity: 0;
  pointer-events: none;
}

.screen-stage.is-dragging .screen-image {
  cursor: grabbing;
  transition: none;
}

.top-hud {
  position: absolute;
  left: var(--ui-gap);
  right: var(--ui-gap);
  top: 1.125em;
  z-index: 5;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1em;
  pointer-events: none;
}

.top-hud > * {
  pointer-events: auto;
}

.eyebrow {
  margin-bottom: 0.5em;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.55);
}

h1 {
  max-width: min(720px, calc(100vw - 240px));
  font-size: clamp(28px, 4vw, 56px);
  line-height: 1;
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.72);
}

.board-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.title-edit-button {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--accent);
  font-size: 20px;
  font-weight: 900;
  backdrop-filter: blur(12px);
}

.title-edit-input {
  width: min(560px, calc(100vw - 120px));
  min-height: 48px;
  font-size: clamp(24px, 4vw, 48px);
  font-weight: 900;
}

.mode-group {
  display: grid;
  grid-template-columns: repeat(3, auto);
  width: auto;
  padding: 0.25em;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}

.master-volume {
  grid-column: 1 / -1;
  width: 100%;
  min-height: 28px;
  padding: 0;
}

.mode-button {
  display: grid;
  place-items: center;
  width: 2.625em;
  height: 2.5em;
  border-radius: 0.375em;
  background: transparent;
  color: var(--muted);
  font-weight: 850;
}

.mode-button svg,
.info-button svg {
  width: 21px;
  height: 21px;
  fill: currentColor;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.mode-button svg path + path,
.info-button svg path,
.info-button svg circle {
  fill: none;
}

#muteButton svg path:first-child {
  fill: currentColor;
  stroke: currentColor;
}

.mode-button.is-active {
  background: var(--accent);
  color: #042223;
}

.edge-plus {
  position: absolute;
  z-index: 4;
  display: none;
  width: var(--edge-size);
  height: var(--edge-size);
  border-radius: 50%;
  border: 2px solid rgba(242, 255, 251, 0.62);
  background: rgba(7, 21, 25, 0.62);
  color: var(--accent);
  font-size: 1.35em;
  font-weight: 900;
  line-height: 1;
  backdrop-filter: blur(10px);
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.35);
  touch-action: manipulation;
}

.edge-plus.is-visible {
  display: grid;
  place-items: center;
}

.edge-top {
  left: 50%;
  top: var(--ui-gap);
  transform: translateX(-50%);
}

.edge-right {
  right: var(--ui-gap);
  top: 50%;
  transform: translateY(-50%);
}

.edge-bottom {
  left: 50%;
  bottom: var(--ui-gap);
  transform: translateX(-50%);
}

.edge-left {
  left: var(--ui-gap);
  top: 50%;
  transform: translateY(-50%);
}

.remote-control {
  position: absolute;
  left: var(--ui-gap);
  bottom: var(--ui-gap);
  z-index: 7;
  width: var(--control-w);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(5, 16, 19, 0.42);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
  user-select: none;
  touch-action: none;
}

.viewer-panel {
  position: absolute;
  right: var(--ui-gap);
  top: 5.5em;
  z-index: 7;
  width: min(var(--viewer-w), calc(100vw - (var(--ui-gap) * 2)));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(5, 16, 19, 0.42);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
  overflow: hidden;
  touch-action: none;
  user-select: none;
}

.viewer-panel.is-hidden {
  display: none;
}

.viewer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5em;
  padding: 0.5em 0.5em 0.4375em 0.625em;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  cursor: grab;
}

.viewer-header button {
  width: 1.75em;
  height: 1.625em;
  border-radius: 0.375em;
  background: rgba(242, 255, 251, 0.08);
  color: var(--text);
  font-weight: 900;
}

.viewer-map {
  position: relative;
  aspect-ratio: 1;
  margin: 0 0.625em 0.625em;
  overflow: hidden;
  border: 1px solid rgba(242, 255, 251, 0.16);
  border-radius: var(--radius);
  background: #061114;
}

.viewer-map img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.viewer-reticle {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 2.625em;
  height: 2.625em;
  border-radius: 50%;
  border: 2px solid var(--accent-2);
  background:
    linear-gradient(var(--accent-2), var(--accent-2)) center / 0.125em 1.75em no-repeat,
    linear-gradient(90deg, var(--accent-2), var(--accent-2)) center / 1.75em 0.125em no-repeat,
    rgba(5, 16, 19, 0.12);
  box-shadow: 0 0 18px rgba(241, 203, 115, 0.35);
  transform: translate(-50%, -50%);
  touch-action: none;
}

.drag-handle {
  display: grid;
  gap: 0.125em;
  padding: 0.5em 0.625em 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-align: center;
  text-transform: uppercase;
  cursor: grab;
}

.drag-handle strong {
  color: var(--accent);
  font-size: 11px;
}

.remote-grid {
  display: grid;
  grid-template-columns: repeat(3, 3em);
  grid-template-rows: repeat(4, 3em);
  gap: 0.375em;
  justify-content: center;
  padding: 0.625em;
}

.remote-button {
  border-radius: var(--radius);
  border: 1px solid rgba(242, 255, 251, 0.18);
  background: rgba(242, 255, 251, 0.08);
  color: var(--text);
  font-size: 22px;
  font-weight: 900;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.remote-button:hover,
.edge-plus:hover,
.info-button:hover,
.primary-button:hover,
.ghost-button:hover,
.close-button:hover {
  filter: brightness(1.1);
}

#upButton {
  grid-column: 2;
}

#leftButton {
  grid-column: 1;
  grid-row: 2;
}

#homeButton {
  grid-column: 2;
  grid-row: 2;
  color: var(--accent-2);
}

#rightButton {
  grid-column: 3;
  grid-row: 2;
}

#downButton {
  grid-column: 2;
  grid-row: 3;
}

.zoom-button {
  color: var(--accent);
}

#zoomOutButton {
  grid-column: 1;
  grid-row: 4;
}

#minimizeControlButton {
  grid-column: 2;
  grid-row: 4;
  color: var(--accent-2);
}

#zoomInButton {
  grid-column: 3;
  grid-row: 4;
}

.icon-button,
.control-restore-button,
.viewer-restore-button,
.inventory-button,
.debug-button,
.nav-button,
.board-edit-button {
  position: absolute;
  z-index: 6;
  display: grid;
  place-items: center;
  width: var(--icon-w);
  height: var(--icon-h);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  font-weight: 900;
  backdrop-filter: blur(12px);
  touch-action: manipulation;
}

.bottom-toolbar {
  position: absolute;
  right: var(--ui-gap);
  bottom: var(--ui-gap);
  z-index: 6;
  display: flex;
  align-items: center;
  gap: 0.5em;
}

.bottom-toolbar .icon-button,
.bottom-toolbar .control-restore-button,
.bottom-toolbar .viewer-restore-button,
.bottom-toolbar .inventory-button,
.bottom-toolbar .debug-button,
.bottom-toolbar .nav-button,
.bottom-toolbar .board-edit-button {
  position: static;
}

.board-edit-button.is-hidden,
.inventory-button.is-hidden,
.debug-button.is-hidden,
.nav-button.is-hidden,
.control-restore-button.is-hidden,
.viewer-restore-button.is-hidden,
.remote-control.is-hidden {
  display: none;
}

.remote-button.is-unavailable {
  visibility: hidden;
  pointer-events: none;
}

.app-dialog {
  max-height: min(760px, calc(100vh - 32px));
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
  color: var(--text);
  box-shadow: var(--shadow);
  touch-action: auto;
}

.app-dialog {
  width: min(560px, calc(100% - 32px));
}

.app-dialog::backdrop {
  background: rgba(0, 0, 0, 0.68);
}

.app-dialog form {
  display: grid;
  gap: 16px;
}

.app-dialog h2 {
  font-size: 28px;
}

.field {
  display: grid;
  min-width: 0;
  gap: 8px;
  color: var(--muted);
  font-weight: 850;
}

select {
  width: 100%;
  min-width: 0;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  background: #071417;
  color: var(--text);
  font: inherit;
}

textarea {
  width: 100%;
  min-width: 0;
  resize: vertical;
  min-height: 118px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: #071417;
  color: var(--text);
}

.board-description-input {
  min-height: 72px;
}

.tabs {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 2px;
  background: var(--panel-strong);
}

.tab-button {
  min-height: 34px;
  border-radius: 8px;
  padding: 0 12px;
  background: rgba(242, 255, 251, 0.06);
  color: var(--muted);
  font-weight: 900;
  white-space: nowrap;
}

.tab-button.is-active {
  background: var(--accent);
  color: #042223;
}

.tab-panel {
  display: none;
  gap: 12px;
}

.tab-panel.is-active {
  display: grid;
}

.other-field.is-hidden {
  display: none;
}

.check-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.check-grid label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-weight: 750;
}

.check-grid input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

input {
  width: 100%;
  min-width: 0;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  background: #071417;
  color: var(--text);
  font: inherit;
}

.check-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--muted);
  font-weight: 750;
}

.check-row input {
  width: 20px;
  height: 20px;
  accent-color: var(--accent);
}

.dialog-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.dialog-actions.single {
  grid-template-columns: 1fr;
}

.board-dialog,
.effects-dialog {
  width: min(720px, calc(100% - 32px));
}

.board-dialog {
  overflow-x: hidden;
}

.board-dialog form,
.board-dialog .tab-panel,
.board-dialog .audio-slot {
  min-width: 0;
}

.audio-dialog {
  width: min(720px, calc(100% - 32px));
}

.background-preview {
  position: relative;
  justify-self: center;
  width: min(520px, 100%);
  aspect-ratio: 16 / 9;
  max-height: 220px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #061114;
}

.background-preview.is-hidden {
  display: none;
}

.background-preview img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.effects-preview {
  position: relative;
  justify-self: center;
  width: min(520px, 100%);
  aspect-ratio: 16 / 9;
  max-height: 220px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #061114;
}

.effects-preview img,
.effects-preview canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.effects-preview img {
  object-fit: contain;
}

.effects-preview canvas {
  pointer-events: none;
}

.effect-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.audio-slots {
  display: grid;
  gap: 12px;
}

.audio-slot {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(242, 255, 251, 0.04);
}

.audio-slot-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: end;
  gap: 10px;
}

.audio-slot-row .check-row {
  min-height: 44px;
  white-space: nowrap;
}

.audio-select-field {
  min-width: 0;
}

.audio-slot-row .ghost-button {
  min-width: 96px;
}

.audio-slot-volume {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-weight: 850;
}

.audio-slot-volume input[type="range"] {
  width: 100%;
  min-height: 28px;
  padding: 0;
}

.control-coords {
  padding: 0 0.75em;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-align: center;
}

.compact-hidden.is-hidden,
.is-hidden {
  display: none;
}

.effect-header-line,
.slot-line {
  display: grid;
  grid-template-columns: minmax(92px, auto) minmax(0, 1fr);
  align-items: center;
  gap: 10px;
}

.slot-line input[type="range"] {
  width: 100%;
  min-height: 28px;
  padding: 0;
}

.compact-effect-preview {
  max-height: 220px;
}

.board-audio-slots {
  grid-template-columns: minmax(0, 1fr);
  max-height: min(52vh, 520px);
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 4px;
}

.compact-slot {
  align-content: start;
}

.inline-check {
  align-items: center;
}

.inventory-tab,
.inventory-source-tab,
.inventory-title-tab {
  min-height: 34px;
  border-radius: 8px;
  padding: 0 12px;
  background: rgba(242, 255, 251, 0.06);
  color: var(--muted);
  font-weight: 900;
}

.inventory-tab.is-active,
.inventory-source-tab.is-active,
.inventory-title-tab.is-active {
  background: var(--accent);
  color: #042223;
}

.inventory-create-panel,
.inventory-title-panel {
  display: grid;
  gap: 12px;
}

.inventory-title-panel.is-hidden,
.inventory-create-panel.is-hidden {
  display: none;
}

.inventory-title-panel select {
  min-height: 180px;
  padding: 8px;
}

.inventory-title-preview {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 44px;
  align-items: center;
  gap: 8px;
}

.inventory-title-image {
  display: block;
  width: 100%;
  max-height: 220px;
  object-fit: contain;
  border-radius: var(--radius);
  background: #000;
}

.inventory-title-audio {
  width: 100%;
}

.inventory-title-image.is-hidden,
.inventory-title-audio.is-hidden {
  display: none;
}

.nav-dialog {
  width: min(640px, calc(100% - 32px));
}

.board-grid {
  display: grid;
  width: min(560px, calc(100vw - 64px));
  aspect-ratio: 1 / 1;
  gap: 4px;
}

.board-grid-cell {
  position: relative;
  overflow: hidden;
  min-width: 0;
  min-height: 0;
  border: 1px solid var(--line);
  border-radius: 4px;
  background-color: #071417;
  background-size: cover;
  background-position: center;
  color: var(--text);
  font-size: 12px;
  font-weight: 900;
  text-shadow: 0 2px 8px #000;
}

.board-grid-cell::after {
  content: attr(data-title);
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: block;
  padding: 6px;
  overflow: hidden;
  background: rgba(5, 16, 19, 0.86);
  color: var(--text);
  font-size: 12px;
  line-height: 1.15;
  opacity: 0;
  text-overflow: ellipsis;
  text-shadow: none;
  transform: translateY(100%);
  transition: opacity 140ms ease, transform 140ms ease;
  white-space: nowrap;
}

.board-grid-cell:hover::after,
.board-grid-cell:focus-visible::after {
  opacity: 1;
  transform: translateY(0);
}

.board-grid-cell.is-empty {
  background: #000;
  cursor: default;
}

.board-grid-cell.is-current {
  outline: 3px solid var(--accent);
}

.sound-listbox {
  min-height: 180px;
  padding: 8px;
}

.debug-preview {
  display: grid;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(5, 16, 19, 0.82);
}

.debug-preview.is-hidden {
  display: none;
}

.debug-actions {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: center;
}

.debug-actions .is-hidden {
  display: none;
}

.debug-actions:has(#debugLoadButton:not(.is-hidden)) {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.debug-preview-board {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 44px;
  align-items: center;
  gap: 8px;
  padding-bottom: 34px;
}

.debug-preview-board::after {
  content: attr(data-title);
  position: absolute;
  left: 54px;
  right: 54px;
  bottom: 0;
  padding: 6px 8px;
  overflow: hidden;
  border-radius: var(--radius);
  background: rgba(5, 16, 19, 0.86);
  color: var(--text);
  opacity: 0;
  text-overflow: ellipsis;
  transform: translateY(6px);
  transition: opacity 140ms ease, transform 140ms ease;
  white-space: nowrap;
}

.debug-preview-board:hover::after,
.debug-preview-board:focus-within::after {
  opacity: 1;
  transform: translateY(0);
}

.debug-preview-image {
  display: block;
  width: 100%;
  max-height: 300px;
  object-fit: contain;
  border-radius: var(--radius);
  background: #000;
}

.debug-preview-image.is-hidden {
  display: none;
}

.debug-preview-arrow {
  width: 44px;
  min-height: 64px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(242, 255, 251, 0.08);
  color: var(--text);
  font-size: 26px;
  font-weight: 900;
}

.debug-preview-audio {
  width: 100%;
}

.debug-preview-audio.is-hidden {
  display: none;
}

.format-help {
  color: var(--muted);
  font-size: 13px;
  font-weight: 750;
  line-height: 1.35;
}

.debug-preview-close {
  justify-self: end;
  min-height: 34px;
}

.debug-dialog form {
  position: relative;
}

.dialog-close-button {
  position: absolute;
  top: 0;
  right: 0;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(242, 255, 251, 0.08);
  color: var(--text);
  font-size: 22px;
  font-weight: 900;
}

.primary-button,
.ghost-button {
  min-height: 42px;
  border-radius: 8px;
  padding: 0 14px;
  font-weight: 900;
}

.primary-button {
  background: var(--accent);
  color: #042223;
}

.ghost-button {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
}

#messageBody,
#createTarget {
  color: var(--muted);
  line-height: 1.5;
}

.close-button {
  position: absolute;
  right: 1.125em;
  top: 1.125em;
  width: 2.875em;
  height: 2.875em;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  font-size: 30px;
  line-height: 1;
}

@media (max-width: 760px) {
  :root {
    --ui-gap: 0.75em;
    --icon-w: 2.625em;
    --icon-h: 2.375em;
    --icon-step: 3.0625em;
    --control-w: 10.375em;
    --viewer-w: 11.75em;
    --edge-size: 2.2em;
  }

  .top-hud {
    align-items: stretch;
    flex-direction: column;
  }

  h1 {
    max-width: 100%;
  }

  .mode-group {
    width: max-content;
  }

  .remote-control {
    width: var(--control-w);
  }

  .remote-grid {
    grid-template-columns: repeat(3, 2.625em);
    grid-template-rows: repeat(4, 2.625em);
  }
}

@media (max-width: 420px) {
  :root {
    --ui-gap: 0.5em;
    --icon-w: 2.25em;
    --icon-h: 2.125em;
    --icon-step: 2.625em;
    --control-w: 9.5em;
    --viewer-w: 10.5em;
    --edge-size: 2.05em;
  }

  .remote-grid {
    grid-template-columns: repeat(3, 2.375em);
    grid-template-rows: repeat(4, 2.375em);
    gap: 0.25em;
    padding: 0.5em;
  }

  .remote-button {
    font-size: 1em;
  }

  .bottom-toolbar {
    gap: 0.35em;
  }

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

  .board-audio-slots {
    grid-template-columns: 1fr;
  }

  .audio-slot-row {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .audio-slot-row .check-row {
    min-height: auto;
  }

  .audio-slot-row .ghost-button {
    width: 100%;
  }
}