/* The first screen: one composer that makes a sign and plays it.
   Ordinary users never see parameter names. */
body.page-quick {
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
}
.page-quick #app {
  height: 100%;
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding-top: env(safe-area-inset-top);
}
.page-quick .site-header {
  flex: 0 0 auto;
}
.quick {
  flex: 1 1 auto;
  min-height: 0;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 20px calc(16px + env(safe-area-inset-bottom));
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 420px);
  gap: 18px;
}
.quick-stage-wrap {
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.quick-stage {
  position: relative;
  flex: 1 1 auto;
  min-height: 220px;
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  background: #000;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.18);
}
.quick-stage > .bw-stage {
  position: absolute;
  inset: 0;
}
.quick-stage.is-empty {
  opacity: 0.55;
}
.quick-stage-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.quick-hint {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}
.quick-version {
  color: var(--muted);
  font-size: 12px;
  text-align: right;
}
.quick-panel {
  min-height: 0;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 2px 2px 4px;
}
.quick-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.quick-field-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}
.quick-label {
  color: var(--fg);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.01em;
}
.quick-effect-current {
  color: var(--muted);
  font-size: 13px;
}
.quick-effect-rail {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 3px 3px 6px;
  scrollbar-width: thin;
}
.quick-effect {
  flex: 0 0 auto;
  width: 78px;
  padding: 3px;
  border: 2px solid transparent;
  border-radius: 12px;
  background: none;
  color: inherit;
  font: inherit;
  cursor: pointer;
}
.quick-effect:focus-visible {
  outline: 2px solid var(--accent-edge);
  outline-offset: 1px;
}
.quick-effect[aria-pressed='true'] {
  border-color: var(--accent);
  outline: 2px solid var(--accent-edge);
  outline-offset: 1px;
}
.quick-effect-demo {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  border: 1px solid rgba(127, 127, 127, 0.35);
  border-radius: 8px;
  font: 800 17px/1 var(--sans);
  letter-spacing: -0.02em;
  overflow: hidden;
}
.quick-effect-name {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.2;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.quick-effect[aria-pressed='true'] .quick-effect-name {
  color: var(--fg);
}
.quick-text {
  width: 100%;
  min-height: 62px;
  max-height: 118px;
  resize: vertical;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-2);
  color: var(--fg);
  font: 16px/1.45 var(--sans);
}
.quick-text:focus {
  outline: 2px solid var(--accent-edge);
  border-color: transparent;
}
.quick-history {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 2px;
}
.quick-history-label {
  flex: 0 0 auto;
  color: var(--muted);
  font-size: 12px;
}
.quick-history-chip {
  flex: 0 0 auto;
  max-width: 124px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg-3);
  color: var(--fg);
  font: 12px/1.4 var(--sans);
  cursor: pointer;
}
.quick-history-chip:hover {
  border-color: var(--muted);
}
.quick-colors {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.quick-color-row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}
.quick-color-label {
  flex: 0 0 64px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}
.quick-color {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--bg-2);
  cursor: pointer;
}
.quick-color::-webkit-color-swatch-wrapper {
  padding: 0;
}
.quick-color::-webkit-color-swatch {
  border: none;
  border-radius: 50%;
}
.quick-color::-moz-color-swatch {
  border: none;
  border-radius: 50%;
}
.quick-swatches {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  padding: 2px;
}
.quick-swatch-note {
  flex: 0 0 auto;
  color: var(--muted);
  font-size: 11px;
}
.quick-swatch {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: inset 0 0 0 1px rgba(127, 127, 127, 0.35);
}
.quick-swatch:focus-visible {
  outline: 2px solid var(--accent-edge);
  outline-offset: 2px;
}
.quick-swatch[aria-pressed='true'] {
  outline: 2px solid var(--accent-edge);
  outline-offset: 2px;
}
.quick-actions {
  display: flex;
  align-items: stretch;
  gap: 10px;
  margin-top: auto;
  padding-top: 2px;
}
.quick-play {
  flex: 1 1 auto;
  min-height: 50px;
  font-size: 17px;
}
.quick-remote {
  flex: 0 0 auto;
  min-height: 50px;
  padding-inline: 18px;
}
.quick-actions .btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.quick-foot {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 4px 10px;
  margin-top: -4px;
}
.quick-note {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}
.quick-player-link {
  flex: 0 0 auto;
  padding: 0;
  border: 0;
  background: none;
  color: var(--muted);
  font: inherit;
  font-size: 12px;
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
}
.quick-player-link:hover {
  color: var(--fg);
}

/* 更多设置: the viewer's other powers, folded away until asked for, so the
   first screen still asks one question. */
.quick-more {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg-2);
}
.quick-more > summary {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 9px 14px;
  list-style: none;
  cursor: pointer;
}
.quick-more > summary::-webkit-details-marker {
  display: none;
}
.quick-more > summary:focus-visible {
  outline: 2px solid var(--accent-edge);
  outline-offset: 2px;
  border-radius: 14px;
}
.quick-more > summary::after {
  content: '';
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  margin-top: -4px;
  margin-left: auto;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  transition: transform 0.15s ease;
}
.quick-more[open] > summary::after {
  margin-top: 4px;
  transform: rotate(225deg);
}
.quick-more-hint {
  min-width: 0;
  overflow: hidden;
  color: var(--muted);
  font-size: 12px;
  font-weight: 400;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.quick-more-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 14px;
  border-top: 1px solid var(--line);
}
.quick-chips {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 2px 2px 4px;
  scrollbar-width: thin;
}
.quick-chip {
  flex: 0 0 auto;
  min-height: 32px;
  padding: 5px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg-3);
  color: var(--fg);
  font: 12px/1.2 var(--sans);
  white-space: nowrap;
  cursor: pointer;
}
.quick-chip:hover {
  border-color: var(--muted);
}
.quick-chip:focus-visible {
  outline: 2px solid var(--accent-edge);
  outline-offset: 1px;
}
.quick-chip[aria-pressed='true'] {
  border-color: var(--accent-edge);
  background: var(--accent);
  color: var(--accent-fg);
}
.quick-font {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1px;
  padding: 6px 12px;
  border-radius: 10px;
}
.quick-font-sample {
  font-size: 16px;
  line-height: 1.25;
}
.quick-font-name {
  color: var(--muted);
  font-size: 11px;
}
.quick-font[aria-pressed='true'] .quick-font-name {
  color: inherit;
  opacity: 0.75;
}
.quick-sub {
  color: var(--muted);
  font-size: 12px;
}
.quick-sub.is-on {
  color: var(--accent-edge);
  font-weight: 700;
}
.quick-inline {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.quick-input {
  flex: 1 1 120px;
  min-width: 0;
  min-height: 36px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  color: var(--fg);
  font: 14px/1.3 var(--sans);
}
.quick-input:focus {
  outline: 2px solid var(--accent-edge);
  border-color: transparent;
}
.quick-select {
  flex: 0 1 auto;
  min-height: 36px;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  color: var(--fg);
  font: 13px/1.3 var(--sans);
}
.quick-select:focus-visible {
  outline: 2px solid var(--accent-edge);
}
.quick-range {
  flex: 1 1 120px;
  min-width: 90px;
  max-width: 280px;
  accent-color: var(--accent);
}
.quick-unit {
  color: var(--muted);
  font-size: 12px;
}
.quick-mini {
  padding: 2px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: none;
  color: var(--muted);
  font: 11px/1.5 var(--sans);
  cursor: pointer;
}
.quick-mini:hover {
  border-color: var(--muted);
  color: var(--fg);
}
.quick-mini:focus-visible {
  outline: 2px solid var(--accent-edge);
  outline-offset: 1px;
}
.quick-tip {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}
.quick-tip.is-warn {
  color: var(--warn);
}
.quick-timer {
  flex: 0 1 84px;
}
.quick-interval {
  flex: 0 1 96px;
}
.quick-cd-until .quick-input {
  flex: 1 1 100%;
}
.quick-qr-wifi {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.quick-qr-wifi .quick-qr-ssid {
  flex: 1 1 140px;
}
.quick-qr-wifi .quick-qr-pass {
  flex: 1 1 110px;
}
.quick-qr-wifi .quick-select {
  flex: 0 0 auto;
}
.quick-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 2px 12px;
}
.quick-link {
  padding: 0;
  border: 0;
  background: none;
  color: var(--muted);
  font: inherit;
  font-size: 12px;
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
}
.quick-link:hover {
  color: var(--fg);
}

/* Share QR: the sign's own link, so a second screen opens the same sign. */
.quick-share-dialog {
  width: min(340px, calc(100vw - 32px));
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px 18px 18px;
  background: var(--bg-2);
  color: var(--fg);
}
.quick-share-dialog::backdrop {
  background: rgba(0, 0, 0, 0.45);
}
.quick-share-dialog h2 {
  margin: 0 0 14px;
  font-size: 18px;
  line-height: 1.3;
}
.quick-share-code {
  display: flex;
  justify-content: center;
  margin-bottom: 12px;
}
.quick-share-code svg {
  display: block;
  width: 200px;
  height: auto;
  border-radius: 8px;
}
.quick-share-long {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
  text-align: center;
}
.quick-share-url {
  flex: none;
  width: 100%;
  font-size: 12px;
}
.quick-share-note {
  margin: 8px 0 14px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}
.quick-share-actions {
  display: flex;
  gap: 8px;
}
.quick-share-actions .btn {
  flex: 1;
  min-height: 44px;
}

/* The sheet behind 控制其他屏幕: the four device directions, kept off the
   composer until someone actually wants to connect another screen. */
.quick-connect {
  width: min(460px, calc(100vw - 32px));
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 20px;
  background: var(--bg-2);
  color: var(--fg);
}
.quick-connect::backdrop {
  background: rgba(0, 0, 0, 0.45);
}
.quick-connect h2 {
  margin: 0 0 4px;
  font-size: 21px;
}
.quick-connect-lead {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}
.quick-connect-group {
  margin: 0 0 14px;
}
.quick-connect-group h3 {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.quick-connect-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.quick-connect-note {
  margin: -2px 0 8px;
  color: var(--warn);
  font-size: 12px;
  font-weight: 600;
}
.quick-connect-option {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg);
  color: var(--fg);
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.quick-connect-option:hover {
  border-color: var(--muted);
}
.quick-connect-option:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.quick-connect-option strong {
  font-size: 14px;
}
.quick-connect-option span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}
.quick-connect-close {
  width: 100%;
  min-height: 44px;
  margin-top: 4px;
}

/* The controller's console: preview, connect, play. No step wizard. */
body.page-console {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
}
.page-console #app {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}
.console-back {
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
}
.console {
  flex: 1 1 auto;
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 16px 16px 28px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
  gap: 16px;
  align-items: start;
}
.console-preview {
  position: sticky;
  top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}
.console-frames {
  display: flex;
  gap: 4px;
  min-width: 0;
}
.console-frames.is-empty {
  opacity: 0.55;
}
.console-frame {
  position: relative;
  flex: 1 1 0;
  min-width: 0;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: #000;
}
.console-frame-stage {
  position: absolute;
  inset: 0;
}
.console-frame .control-slot {
  position: absolute;
  top: 6px;
  left: 6px;
  z-index: 2;
  opacity: 0.9;
}
.console-preview-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.console-sign {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--muted);
  font-size: 13px;
}
.console-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}
.console-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--bg-2);
}
.console-card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}
.console-card-head h2 {
  margin: 0;
  font-size: 17px;
}
.console-status {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
  text-align: right;
}
.console-status.is-playing {
  color: var(--fg);
  font-weight: 700;
}
.console-add-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.console-add-row .btn {
  min-height: 44px;
}
.console-add-row input {
  flex: 1 1 160px;
  min-width: 0;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  color: var(--fg);
  font: inherit;
}
.console-empty {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}
.console-play {
  gap: 10px;
}
.console-play-actions {
  display: flex;
  gap: 10px;
}
.console-play-actions .btn {
  min-height: 50px;
}
.console-play-btn {
  flex: 1 1 auto;
  font-size: 17px;
}
.console-stop-btn {
  flex: 1 1 auto;
}
.console-hint {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}
.console-card .host-code {
  font-size: clamp(44px, 10vw, 68px);
}
.console-card .player-qr {
  width: min(200px, 62vw);
}
.console-card .player-status {
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  text-align: left;
}
.console-card .host-tools {
  justify-content: flex-start;
}
.console-card .control-scan,
.console-card .control-scan video {
  max-height: 220px;
}

@media (max-width: 899px) {
  .console {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding: 10px 12px calc(14px + env(safe-area-inset-bottom));
  }
  .console-preview {
    position: static;
    width: 100%;
  }
  .console-play {
    position: sticky;
    bottom: 0;
    z-index: 3;
    margin: 0 -2px;
    padding: 10px 10px calc(10px + env(safe-area-inset-bottom));
    box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.14);
  }
  .console-card .host-code {
    font-size: clamp(44px, 16vw, 76px);
  }
}

/* Installer download dialog (the header's 下载安装版 button). Same shape as
   the send dialog below; the QR itself is white regardless of the theme. */
.apk-dialog {
  width: min(320px, calc(100vw - 32px));
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px 18px 18px;
  background: var(--bg-2);
  color: var(--fg);
  text-align: center;
}
.apk-dialog::backdrop {
  background: rgba(0, 0, 0, 0.45);
}
.apk-title {
  display: block;
  font-size: 17px;
  margin: 0 0 14px;
}
.apk-qr {
  display: flex;
  justify-content: center;
  margin-bottom: 12px;
}
.apk-qr svg {
  display: block;
  width: 208px;
  height: auto;
  border-radius: 8px;
}
.apk-hint {
  margin: 0 0 16px;
  color: var(--muted);
}
.apk-actions {
  display: flex;
  gap: 8px;
}
.apk-actions .btn {
  flex: 1;
  min-height: 44px;
}

/* Compose. One screen: preview on top, controls docked underneath. */
body.page-studio {
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
}
.page-studio #app {
  height: 100%;
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding-top: env(safe-area-inset-top);
}
.studio-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  gap: 8px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
}
.studio-bar a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--muted);
  font-weight: 600;
  text-decoration: none;
}
.studio-bar .btn {
  min-height: 44px;
  padding: 8px 16px;
}
.studio-bar .btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.studio-bar strong {
  font-size: 16px;
}
.studio-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.studio {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 8px 12px 0;
}
.studio-stage {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
.studio-screen {
  position: relative;
  flex: 1 1 auto;
  min-height: 120px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
  cursor: ns-resize;
  touch-action: none;
}
.studio-screen:focus-visible {
  outline: 2px solid var(--accent-edge);
  outline-offset: 2px;
}
.studio-screen > .bw-stage {
  position: absolute;
  inset: 0;
}
.studio-screen.is-empty {
  opacity: 0.45;
}
/* Portrait editor, landscape playback: the frame matches the phone turned sideways. */
.studio-screen.is-land {
  flex: 0 0 auto;
  width: 100%;
  height: auto;
  min-height: 0;
  max-height: 100%;
  aspect-ratio: var(--preview-ratio, 2);
}
.studio-compose {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.studio-hint {
  margin: 0;
  padding: 8px 12px calc(10px + env(safe-area-inset-bottom));
  color: var(--muted);
  font-size: 13px;
}
.studio-tools {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.orient-toggle {
  display: none;
  align-items: center;
  gap: 6px;
}
@media (max-width: 720px), (pointer: coarse) {
  .orient-toggle {
    display: flex;
  }
  .orient-toggle .btn {
    min-height: 32px;
    padding: 4px 12px;
    font-size: 13px;
  }
  .orient-toggle .btn[aria-pressed='true'] {
    background: var(--fg);
    border-color: var(--fg);
    color: var(--bg);
  }
}
.studio-compose label {
  font-size: 13px;
  font-weight: 700;
}
.studio-compose textarea {
  width: 100%;
  box-sizing: border-box;
  resize: none;
  min-height: 52px;
  max-height: 96px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--bg-2);
  color: var(--fg);
  font: 16px/1.4 var(--sans);
}
.studio-compose textarea:focus {
  outline: 2px solid var(--accent-edge);
  border-color: transparent;
}
.studio-colors {
  display: flex;
  align-items: center;
  gap: 8px;
}
.color-field {
  display: block;
  width: 36px;
  height: 36px;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  cursor: pointer;
  appearance: none;
}
.color-field:focus-visible {
  outline: 2px solid var(--accent-edge);
  outline-offset: 2px;
}
.color-dialog {
  width: min(280px, calc(100vw - 32px));
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  background: var(--bg-2);
  color: var(--fg);
}
.color-dialog::backdrop {
  background: rgba(0, 0, 0, 0.45);
}
.color-dialog h2 {
  margin: 0 0 12px;
  font-size: 18px;
  line-height: 1.3;
}
.color-dialog form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.color-dialog input[type='color'] {
  width: 100%;
  height: 72px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
}
.color-dialog .btn {
  min-height: 44px;
}
.color-dialog input[type='color']::-webkit-color-swatch-wrapper {
  padding: 0;
}
.color-dialog input[type='color']::-webkit-color-swatch {
  border: none;
  border-radius: 12px;
}
.color-dialog input[type='color']::-moz-color-swatch {
  border: none;
  border-radius: 12px;
}

/* Keyboard open: pin the editor to the visible area and give the field the room. */
body.studio-typing.page-studio #app {
  position: fixed;
  left: 0;
  right: 0;
  top: var(--studio-vv-top, 0);
  height: var(--studio-vv-h, 100dvh);
}
body.studio-typing .studio-hint,
body.studio-typing .studio-tools {
  display: none;
}
body.studio-typing .studio-bar {
  padding-top: 4px;
  padding-bottom: 4px;
}
body.studio-typing .studio {
  gap: 6px;
  padding-top: 6px;
  padding-bottom: calc(6px + env(safe-area-inset-bottom));
}
body.studio-typing .studio-text-label {
  display: none;
}
body.studio-typing .studio-stage {
  flex: 0 0 auto;
}
body.studio-typing .studio-screen {
  flex: none;
  height: 64px;
  min-height: 56px;
  max-height: 72px;
  aspect-ratio: auto;
}

@media (min-width: 900px) {
  .studio {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 400px;
    gap: 16px;
    padding: 16px 20px 0;
  }
  .studio-screen {
    min-height: 280px;
  }
  .studio-compose {
    justify-content: flex-end;
  }
  .studio-hint {
    padding: 8px 20px 16px;
  }
}
.studio-missing {
  max-width: 36em;
  margin: 15vh auto;
  padding: 0 20px;
}
.studio-missing h1 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 56px;
  line-height: 1;
  margin: 0 0 8px;
}

.play-tip {
  width: min(360px, calc(100vw - 32px));
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px 18px 18px;
  background: var(--bg-2);
  color: var(--fg);
}
.play-tip::backdrop {
  background: rgba(0, 0, 0, 0.45);
}
.play-tip ol {
  margin: 0 0 14px;
  padding-left: 1.3em;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.play-tip-skip {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  margin: 0 0 10px;
  font-weight: 600;
}
.play-tip-skip input {
  width: 20px;
  height: 20px;
  margin: 0;
}
.play-tip .btn {
  width: 100%;
  min-height: 44px;
}

.done-dialog {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
  background: var(--bg-2);
  color: var(--fg);
  max-width: min(440px, calc(100vw - 32px));
}
.done-dialog::backdrop {
  background: rgba(0, 0, 0, 0.45);
}
.done-dialog h2 {
  font-family: var(--display);
  font-weight: 400;
  font-size: 40px;
  line-height: 1;
  margin: 0 0 8px;
}
.done-dialog p {
  margin: 0 0 16px;
  color: var(--muted);
}
.done-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.done-actions .btn {
  min-height: 44px;
}

@media (min-width: 900px) {
  /* On a wide screen show the whole gallery at once: the horizontal rail is
     there for phones, where vertical room is the scarce one. */
  .quick-effect-rail {
    flex-wrap: wrap;
    overflow: visible;
  }
  .quick-effect {
    width: calc((100% - 32px) / 5);
  }
  /* Same for the 更多设置 rails: no reason to scroll sideways with room to spare. */
  .quick-fonts,
  .quick-anims {
    flex-wrap: wrap;
    overflow: visible;
  }
}

@media (max-width: 899px) {
  body.page-quick {
    height: auto;
    min-height: 100dvh;
    overflow: auto;
  }
  .page-quick #app {
    min-height: 100dvh;
    height: auto;
  }
  .quick {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 10px 12px calc(14px + env(safe-area-inset-bottom));
  }
  .quick-stage-wrap {
    flex: 0 0 auto;
  }
  .quick-stage {
    flex: none;
    height: clamp(130px, 22dvh, 220px);
    min-height: 0;
    border-radius: 14px;
  }
  .quick-panel {
    overflow: visible;
    gap: 10px;
  }
  .quick-effect {
    width: 72px;
  }
  .quick-effect-demo {
    height: 36px;
  }
  .quick-actions {
    position: sticky;
    bottom: 0;
    z-index: 3;
    margin-top: 2px;
    padding: 6px 0 calc(8px + env(safe-area-inset-bottom));
    background: linear-gradient(transparent, var(--bg) 28%);
  }
  .quick-play,
  .quick-remote {
    min-height: 46px;
  }
  .quick-remote {
    padding-inline: 14px;
  }
  .quick-connect {
    max-height: calc(100dvh - 32px);
    overflow: auto;
  }
  .quick-connect-options {
    grid-template-columns: 1fr;
  }
  .quick-foot {
    padding-bottom: calc(8px + env(safe-area-inset-bottom));
  }
  .quick-more-hint {
    display: none;
  }
}

@media (max-width: 720px) {
  .done-dialog {
    width: calc(100vw - 32px);
  }
  .done-actions {
    flex-direction: column;
  }
  .done-actions .btn {
    width: 100%;
  }
}

body.page-player,
body.page-control,
body.page-host,
body.page-join {
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
}
.player-screen,
.control-screen,
.host-screen,
.join-screen {
  max-width: 560px;
  margin: 0 auto;
  padding: 20px 16px 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.player-lead {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}
/* The waiting page's two states: the QR while unadded, the offer once joined. */
.player-wait,
.player-joined {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.player-qr {
  align-self: center;
  width: min(280px, 80vw);
  padding: 12px;
  background: #fff;
  border-radius: 12px;
}
.player-qr svg {
  display: block;
  width: 100%;
  height: auto;
}
.player-id {
  margin: 0;
  text-align: center;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 20px;
  letter-spacing: 0.08em;
}
.player-status {
  margin: 0;
  text-align: center;
  font-weight: 700;
}
.player-auto-hint {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
  text-align: center;
}
.player-number {
  margin: 0;
  text-align: center;
  font-family: var(--display);
  font-size: 34px;
  line-height: 1.1;
  letter-spacing: 0.02em;
}
.player-wall {
  margin: 0;
  text-align: center;
  color: var(--accent);
  font-weight: 700;
  line-height: 1.4;
}
.player-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 6px;
}
.player-actions .btn {
  width: min(360px, 100%);
}
.control-scan {
  overflow: hidden;
  border-radius: 12px;
  background: #000;
}
.control-scan video {
  display: block;
  width: 100%;
  max-height: 280px;
  object-fit: cover;
}
.control-add {
  display: flex;
  gap: 8px;
}
.control-add input {
  flex: 1 1 auto;
  min-width: 0;
  min-height: 44px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-2);
  color: var(--fg);
  font: inherit;
}
.control-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.control-empty {
  margin: 0;
  color: var(--muted);
}
.control-row,
.send-player {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 44px;
}
.control-row label,
.send-player {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  min-width: 0;
}
/* The roster's player id must stay on one line: it is matched against the
   code the player's own screen shows, so it shrinks and finally ellipsizes
   instead of folding a group onto a second line. */
.control-id {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}
.control-row input,
.send-player input {
  width: 20px;
  height: 20px;
  margin: 0;
}
/* The number a screen was given. Reads as a badge, and is the same number the screen shows. */
.control-slot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 28px;
  padding: 0 6px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-fg);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.control-move {
  display: flex;
  align-items: center;
  gap: 6px;
}
.control-move .btn {
  min-height: 36px;
  padding: 4px 10px;
}
.send-dialog {
  width: min(360px, calc(100vw - 32px));
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px 18px 18px;
  background: var(--bg-2);
  color: var(--fg);
}
.send-dialog::backdrop {
  background: rgba(0, 0, 0, 0.45);
}
.send-dialog h2 {
  margin: 0 0 8px;
  font-size: 20px;
}
.send-dialog p {
  margin: 0 0 14px;
  line-height: 1.5;
}
.send-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin: 0 0 12px;
}
/* Joining the chosen screens into one sign. Only worth offering for two or more. */
.send-wall {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  font-weight: 700;
}
.send-wall input {
  width: 20px;
  height: 20px;
  margin: 0;
}
.send-wall-off {
  opacity: 0.5;
}
.send-dialog .btn {
  width: 100%;
  min-height: 44px;
  margin-top: 8px;
}
/* Switching the same sign to the room flow: a quiet link under the buttons. */
.send-flip {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

/* The host's show-this-code page and the player's scan-it page. */
.host-code {
  margin: 0;
  text-align: center;
  font-family: var(--display);
  font-size: clamp(56px, 18vw, 96px);
  line-height: 1;
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}
.host-tools {
  display: flex;
  justify-content: center;
}
.host-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.host-hint {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
  text-align: center;
}
.host-full {
  margin: 0;
  color: var(--accent);
  font-weight: 700;
}
.host-alt {
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}
.join-enter {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.join-in {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.join-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 6px;
}