:root {
  --bg: #0f131a;
  --ink: #e7ebf3;
  --muted: #95a0b6;
  --brand: #3b82f6;
  --danger: #d94b5c;
  --surface: #171d28;
  --line: #2a3344;
  --surface-soft: #1f2735;
  --focus: #93c5fd;
  --shadow: none;
  --tool-btn-size: 48px;
  --tool-icon-size: 24px;
  --link: #93c5fd;
  --active-surface: #243750;
  --active-line: #3f5d86;
  --swatch-line: #334154;
  --status-ok-fg: #b8f0c8;
  --status-ok-line: #336f49;
  --status-ok-bg: #1d3a2a;
  --status-bad-fg: #ffc1c9;
  --status-bad-line: #83424d;
  --status-bad-bg: #3f242b;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

body {
  padding: 1rem;
}

/* Footer */
.page-footer {
  position: fixed;
  left: 50%;
  bottom: 0.5rem;
  transform: translateX(-50%);
  z-index: 2000;
  text-align: center;
  color: var(--muted);
  font-size: 0.75rem;
  line-height: 1.35;
}

html.footer-hidden .page-footer,
body.footer-hidden .page-footer {
  display: none;
}

/* Boot splash state */
html.booting #connectionStatus,
html.booting #peerCount,
html.booting #boardCodePill {
  opacity: 0;
}

.loading-screen {
  position: fixed;
  inset: 0;
  z-index: 4000;
  display: grid;
  place-items: center;
  background: var(--bg);
  transition: opacity 180ms ease;
}

.loading-screen-inner {
  display: grid;
  justify-items: center;
  gap: 0.65rem;
  color: var(--ink);
}

.loading-spinner {
  inline-size: 32px;
  block-size: 32px;
  border-radius: 999px;
  border: 3px solid #3b4b63;
  border-top-color: var(--focus);
  animation: loading-spin 0.8s linear infinite;
}

.loading-screen p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

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

@keyframes loading-spin {
  to {
    transform: rotate(360deg);
  }
}

.page-footer p {
  margin: 0.15rem 0;
}

.page-footer a {
  color: var(--link);
  text-decoration: none;
}

.page-footer a:hover {
  text-decoration: underline;
}

.app-shell {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  gap: 1rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.85rem 1rem;
  box-shadow: var(--shadow);
}

.topbar h1 {
  margin: 0;
  font-size: clamp(1.35rem, 2.5vw, 1.75rem);
  letter-spacing: 0;
  transform: translateY(-2px);
}

.brand-suffix {
  margin-left: 0.12em;
  font-size: 0.48em;
  font-weight: 600;
  color: var(--muted);
  vertical-align: baseline;
}

.status-wrap {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
  justify-content: flex-end;
  margin-top: 4px;
}

.pill {
  font-size: 0.78rem;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  border-radius: 7px;
  padding: 0.3rem 0.62rem;
}

.board-code {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--ink);
  cursor: pointer;
}

.board-code-value {
  filter: blur(4px);
  transition: filter 120ms ease;
  user-select: none;
}

.board-code.is-revealed .board-code-value {
  filter: blur(0);
}

.status[data-state="connected"] {
  color: var(--status-ok-fg);
  border-color: var(--status-ok-line);
  background: var(--status-ok-bg);
}

.status[data-state="disconnected"] {
  color: var(--status-bad-fg);
  border-color: var(--status-bad-line);
  background: var(--status-bad-bg);
}

/* Toolbar */
.controls {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.75rem 0.9rem;
  box-shadow: var(--shadow);
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.mobile-gesture-hint {
  display: none;
  margin: -0.35rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.4;
}

.tool-row {
  display: flex;
  gap: 0.45rem;
}

.tool-btn,
.history-btn {
  inline-size: var(--tool-btn-size);
  block-size: var(--tool-btn-size);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.tool-btn {
  position: relative;
}

.tool-beta-tag {
  position: absolute;
  top: -5px;
  left: 10px;
  transform: rotate(7deg);
  border-radius: 999px;
  padding: 0.05rem 0.28rem;
  font-size: 0.52rem;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.05em;
  color: #5b3c00;
  background: rgba(255, 207, 92, 0.95);
  border: 1px solid rgba(161, 106, 0, 0.55);
  pointer-events: none;
  user-select: none;
}

.tool-btn svg,
.history-btn svg {
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.tool-btn svg {
  inline-size: var(--tool-icon-size);
  block-size: var(--tool-icon-size);
}

.history-btn svg {
  inline-size: var(--tool-icon-size);
  block-size: var(--tool-icon-size);
}

#boardCanvas.is-pipette {
  cursor: copy;
}

#clearBoardBtn.is-countdown {
  filter: brightness(0.95);
}

.brush-preview {
  position: fixed;
  left: 0;
  top: 0;
  width: 0;
  height: 0;
  border-radius: 999px;
  transform: translate(-50%, -50%);
  pointer-events: none;
  opacity: 0;
  z-index: 1500;
  border: 1px solid var(--preview-color, #1f2937);
  background: transparent;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.75);
  transition: opacity 80ms ease;
}

.brush-preview.is-visible {
  opacity: 0.72;
}

.brush-preview.is-draw {
  border-style: solid;
}

.brush-preview.is-eraser {
  border-style: dashed;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.control-group span {
  color: var(--muted);
  font-size: 0.92rem;
}

#colorPicker {
  inline-size: 2.3rem;
  block-size: 2rem;
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 0;
  background: var(--surface-soft);
  cursor: pointer;
}

#sizeSlider {
  inline-size: 150px;
}

#sizeValue {
  min-inline-size: 2.6rem;
  color: var(--muted);
  font-size: 0.9rem;
  cursor: pointer;
  border-bottom: 1px dashed #4e5d78;
}

.size-value-editor {
  inline-size: 3.8rem;
  min-inline-size: 3.8rem;
  font-size: 0.9rem;
  color: var(--ink);
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.2rem 0.35rem;
}

.action {
  border: 1px solid #2563eb;
  border-radius: 6px;
  padding: 0.52rem 0.82rem;
  background: var(--brand);
  color: white;
  cursor: pointer;
  font-weight: 600;
  letter-spacing: 0;
}

.action:hover {
  filter: brightness(1.04);
}

.action:active {
  transform: translateY(0);
}

.action.danger {
  border-color: #a84450;
  background: var(--danger);
}

.action.secondary {
  background: var(--surface-soft);
  color: var(--ink);
  border: 1px solid var(--line);
}

.action.secondary.is-active {
  background: var(--active-surface);
  border-color: var(--active-line);
}

.action.compact {
  padding: 0.36rem 0.7rem;
  font-size: 0.78rem;
}

.action:focus-visible,
.swatch:focus-visible,
#colorPicker:focus-visible,
.settings-field input:focus-visible,
.settings-field select:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 1px;
}

#retryConnectBtn[hidden] {
  display: none;
}

.palette {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

body.palette-hidden .palette,
html.palette-hidden .palette {
  display: none;
}

.swatch {
  inline-size: 1.45rem;
  block-size: 1.45rem;
  border-radius: 6px;
  border: 1px solid var(--swatch-line);
  background: var(--swatch);
  cursor: pointer;
  padding: 0;
}

.swatch.is-active {
  box-shadow: 0 0 0 2px #93c5fd;
}

.canvas-wrap {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 0.55rem;
}

#boardCanvas {
  width: 100%;
  height: min(68vh, 700px);
  background: #ffffff;
  border-radius: 6px;
  cursor: crosshair;
  touch-action: none;
  display: block;
}

#boardCanvas.is-panning {
  cursor: grab;
}

.live-cursors {
  position: absolute;
  inset: 0.75rem;
  pointer-events: none;
}

.mouse-coordinates {
  position: absolute;
  left: 1rem;
  bottom: 0.9rem;
  z-index: 1500;
  font-size: 0.62rem;
  line-height: 1;
  letter-spacing: 0.02em;
  color: rgba(24, 39, 59, 0.46);
  pointer-events: none;
  user-select: none;
}

.mouse-coordinates.is-outside {
  color: rgba(24, 39, 59, 0.28);
}

.board-notifications {
  position: absolute;
  top: 1.1rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1650;
  display: grid;
  gap: 0.45rem;
  width: min(92%, 460px);
  pointer-events: none;
}

.camera-move-hint {
  position: absolute;
  left: 50%;
  bottom: 1.2rem;
  transform: translateX(-50%) translateY(6px);
  z-index: 1600;
  border: 1px solid #3a4a61;
  background: rgba(21, 31, 46, 0.95);
  color: #dbe7f8;
  border-radius: 999px;
  padding: 0.45rem 0.75rem;
  font-size: 0.8rem;
  line-height: 1.3;
  white-space: nowrap;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.25);
  opacity: 0;
  transition: opacity 180ms ease, transform 180ms ease;
  pointer-events: none;
}

.camera-move-hint.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.board-notification {
  border-radius: 8px;
  border: 1px solid #3a4a61;
  background: rgba(21, 31, 46, 0.95);
  color: #e9f0fa;
  padding: 0.55rem 0.75rem;
  font-size: 0.84rem;
  line-height: 1.35;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.25);
  animation: board-note-in 160ms ease-out;
}

.board-notification.is-success {
  border-color: #2f7f50;
  background: rgba(21, 54, 36, 0.95);
  color: #d3f8df;
}

.board-notification.is-warning {
  border-color: #916812;
  background: rgba(66, 48, 14, 0.96);
  color: #fff0c2;
}

.board-notification.is-hiding {
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 180ms ease, transform 180ms ease;
}

@keyframes board-note-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.cursor {
  position: absolute;
  transform: translate(-50%, -50%);
  white-space: nowrap;
  inline-size: 11px;
  block-size: 11px;
}

.cursor-dot {
  inline-size: 11px;
  block-size: 11px;
  border-radius: 999px;
  background: var(--cursor-color);
  border: 2px solid #ffffff;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.25);
}

.cursor-label {
  position: absolute;
  top: calc(100% + 0.3rem);
  left: 50%;
  transform: translateX(-50%);
  display: inline-block;
  background: rgba(31, 41, 55, 0.68);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 999px;
  color: #ffffff;
  font-size: 0.72rem;
  padding: 0.15rem 0.45rem;
}

.settings-dialog {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0;
  background: var(--surface);
  color: var(--ink);
  min-inline-size: min(92vw, 360px);
  box-shadow: var(--shadow);
}

.settings-dialog::backdrop {
  background: rgba(17, 24, 39, 0.35);
}

#settingsForm {
  padding: 1rem;
}

#settingsForm h2 {
  margin: 0 0 0.8rem;
  font-size: 1rem;
}

.settings-field {
  display: grid;
  gap: 0.4rem;
  margin-bottom: 0.85rem;
}

.settings-field.settings-check {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.settings-field.settings-check input {
  inline-size: 1rem;
  block-size: 1rem;
}

.settings-field span {
  color: var(--muted);
  font-size: 0.88rem;
}

.settings-field input[type="text"],
.settings-field select {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface-soft);
  color: var(--ink);
  padding: 0.55rem 0.65rem;
}

.settings-field input[type="color"] {
  inline-size: 3rem;
  block-size: 2rem;
  border: none;
  padding: 0;
  background: none;
}

.settings-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

.settings-footer {
  margin-top: 0.9rem;
  padding-top: 0.7rem;
  border-top: 1px solid var(--line);
}

.settings-footer p {
  margin: 0.2rem 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.35;
}

#boardExpiryTimer {
  color: var(--link);
  font-variant-numeric: tabular-nums;
}

.settings-footer a {
  color: var(--link);
  text-decoration: none;
}

.settings-footer a:hover {
  text-decoration: underline;
}

.settings-actions-top {
  justify-content: flex-start;
  margin-bottom: 0.7rem;
}

.export-dialog {
  min-inline-size: min(92vw, 420px);
  border-color: #3a4961;
  border-radius: 12px;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.45);
  overflow: hidden;
}

#exportPngForm {
  padding: 1.2rem 1.25rem 1rem;
}

#exportPngForm h2 {
  margin-bottom: 1rem;
}

#exportPngForm .settings-field {
  margin-bottom: 1rem;
}

#exportPngForm .settings-field:last-of-type {
  margin-bottom: 0.85rem;
}

#exportPngForm .settings-actions {
  margin-top: 0.3rem;
}

.export-hint {
  margin: 0.1rem 0 0.85rem;
  color: var(--link);
  font-size: 0.84rem;
  font-variant-numeric: tabular-nums;
}

.board-action-dialog {
  min-inline-size: min(92vw, 430px);
}

#boardActionForm {
  padding: 1rem 1.05rem;
}

#boardActionForm h2 {
  margin: 0;
  font-size: 1rem;
}

.board-action-message {
  margin: 0.55rem 0 0.9rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.board-action-dialog [hidden] {
  display: none !important;
}

#boardActionInput {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface-soft);
  color: var(--ink);
  padding: 0.55rem 0.65rem;
}

@media (max-width: 720px) {
  body {
    padding: 0.7rem;
  }

  :root {
    --tool-btn-size: 42px;
    --tool-icon-size: 20px;
  }

  .controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.55rem;
    align-items: stretch;
    padding: 0.7rem;
  }

  .control-group {
    width: 100%;
    justify-content: space-between;
  }

  .tool-row,
  .palette,
  .mobile-gesture-hint,
  .controls > .action,
  .controls > .control-group {
    grid-column: 1 / -1;
    width: 100%;
  }

  .mobile-gesture-hint {
    display: block;
  }

  .controls > .action,
  .controls > .history-btn {
    justify-self: stretch;
  }

  #sizeSlider {
    flex: 1;
    margin-inline: 0.25rem;
  }

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

  .status-wrap {
    gap: 0.35rem;
    justify-content: flex-start;
  }

  .status-wrap .action.compact {
    padding: 0.32rem 0.55rem;
  }

  .canvas-wrap {
    padding: 0.45rem;
  }

  #boardCanvas {
    height: min(72vh, 620px);
  }


  .page-footer {
    position: static;
    transform: none;
    left: auto;
    bottom: auto;
    width: 100%;
    margin-top: 0.25rem;
  }

  .board-notifications {
    top: 0.85rem;
    width: calc(100% - 1.2rem);
  }

  .camera-move-hint {
    max-width: calc(100% - 1.2rem);
    white-space: normal;
    text-align: center;
    bottom: 0.8rem;
  }
}

/* Canvas readout */
.canvas-readout {
  position: absolute;
  left: 1rem;
  bottom: 0.9rem;
  z-index: 1500;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  pointer-events: none;
  user-select: none;
}

.mouse-coordinates {
  position: static;
  left: auto;
  bottom: auto;
  z-index: auto;
}

.zoom-percentage {
  padding-left: 0.45rem;
  border-left: 1px solid rgba(24, 39, 59, 0.18);
  color: rgba(24, 39, 59, 0.55);
  font-size: 0.62rem;
  line-height: 1;
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}

/* Keyboard shortcuts */
.shortcuts-dialog {
  inline-size: min(92vw, 460px);
}

.shortcuts-dialog-content {
  padding: 1rem;
}

.shortcuts-dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.8rem;
}

.shortcuts-dialog-header h2 {
  margin: 0;
  font-size: 1rem;
}

.shortcuts-close-btn {
  inline-size: 2rem;
  block-size: 2rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface-soft);
  color: var(--ink);
  font: inherit;
  font-size: 1.15rem;
  line-height: 1;
  cursor: pointer;
}

.shortcuts-close-btn:hover {
  background: var(--surface);
}

.shortcut-list {
  display: grid;
  gap: 0.1rem;
}

.shortcut-row {
  min-block-size: 2.35rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.86rem;
}

.shortcut-row:last-child {
  border-bottom: 0;
}

.shortcut-keys {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.25rem;
  color: var(--muted);
  white-space: nowrap;
}

.shortcut-row kbd {
  min-inline-size: 1.7rem;
  padding: 0.2rem 0.4rem;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: var(--surface-soft);
  color: var(--ink);
  font: 600 0.72rem/1.1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  text-align: center;
  box-shadow: 0 1px 0 rgba(17, 24, 39, 0.08);
}

.shortcuts-dialog-note {
  margin: 0.75rem 0 0;
  color: var(--muted);
  font-size: 0.76rem;
}

/* Responsive and touch-device polish */
html {
  min-block-size: 100%;
}

body {
  min-block-size: 100dvh;
}

.app-shell,
.topbar,
.controls,
.canvas-wrap {
  min-inline-size: 0;
}

.settings-dialog {
  max-inline-size: calc(100vw - 1.5rem);
  max-block-size: calc(100dvh - 1.5rem);
  overflow: auto;
  overscroll-behavior: contain;
}

.settings-field input[type="text"],
.settings-field select,
#boardActionInput {
  inline-size: 100%;
  min-inline-size: 0;
}

@media (pointer: coarse) {
  .action,
  .board-code {
    min-block-size: 44px;
  }

  .action.compact {
    min-block-size: 42px;
  }

  .swatch {
    inline-size: 2rem;
    block-size: 2rem;
  }

  #colorPicker {
    inline-size: 2.75rem;
    block-size: 2.75rem;
  }

  .settings-field.settings-check {
    min-block-size: 44px;
    padding-block: 0.2rem;
  }

  .settings-field.settings-check input {
    inline-size: 1.25rem;
    block-size: 1.25rem;
    flex: 0 0 auto;
  }
}

@media (max-width: 900px) {
  .app-shell {
    gap: 0.75rem;
  }

  .topbar,
  .controls {
    border-radius: 10px;
  }

  .topbar {
    padding: 0.8rem 0.85rem;
  }

  .status-wrap {
    row-gap: 0.45rem;
  }
}

@media (max-width: 720px) {
  body {
    padding-top: max(0.65rem, env(safe-area-inset-top));
    padding-right: max(0.65rem, env(safe-area-inset-right));
    padding-bottom: max(0.65rem, env(safe-area-inset-bottom));
    padding-left: max(0.65rem, env(safe-area-inset-left));
  }

  :root {
    --tool-btn-size: 46px;
    --tool-icon-size: 21px;
  }

  .topbar {
    gap: 0.65rem;
  }

  .topbar h1 {
    font-size: 1.4rem;
  }

  .status-wrap {
    width: 100%;
    margin-top: 0;
  }

  .controls {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.5rem;
    padding: 0.6rem;
  }

  .tool-row {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.45rem;
  }

  .tool-row .tool-btn {
    inline-size: 100%;
    block-size: var(--tool-btn-size);
  }

  .controls > .control-group,
  .controls > .palette,
  .mobile-gesture-hint {
    grid-column: 1 / -1;
    width: 100%;
  }

  .controls > .action {
    width: 100%;
    min-inline-size: 0;
  }

  .controls > .history-btn {
    grid-column: span 1;
    inline-size: 100%;
    block-size: 46px;
  }

  #resetViewBtn {
    grid-column: span 1;
    padding-inline: 0.45rem;
  }

  #clearBoardBtn {
    grid-column: span 2;
  }

  .control-group {
    min-block-size: 46px;
    padding-inline: 0.15rem;
  }

  .control-group > span:first-child {
    flex: 0 0 auto;
  }

  #sizeSlider {
    min-inline-size: 0;
  }

  .palette {
    display: grid;
    grid-template-columns: repeat(8, minmax(0, 1fr));
    gap: 0.4rem;
  }

  .swatch {
    justify-self: center;
  }

  .mobile-gesture-hint {
    margin: -0.1rem 0 0;
    padding-inline: 0.15rem;
  }

  .canvas-wrap {
    padding: 0.35rem;
    border-radius: 10px;
  }

  #boardCanvas {
    height: clamp(360px, 62dvh, 620px);
    border-radius: 7px;
  }

  .canvas-readout {
    left: 0.75rem;
    bottom: 0.7rem;
  }

  .camera-move-hint {
    display: none !important;
  }

  .board-notifications {
    top: 0.7rem;
    width: calc(100% - 1rem);
  }

  .page-footer {
    padding-inline: 0.75rem;
    padding-bottom: env(safe-area-inset-bottom);
  }

  .settings-dialog,
  .export-dialog,
  .board-action-dialog,
  .shortcuts-dialog {
    inline-size: calc(100vw - 1rem);
    min-inline-size: 0;
    max-inline-size: 520px;
    max-block-size: calc(100dvh - max(1rem, env(safe-area-inset-top)) - max(1rem, env(safe-area-inset-bottom)));
    margin: auto;
    border-radius: 12px;
  }

  #settingsForm,
  #exportPngForm,
  #boardActionForm,
  .shortcuts-dialog-content {
    padding: 1rem;
  }

  .settings-field {
    margin-bottom: 0.75rem;
  }

  .settings-field input[type="text"],
  .settings-field select,
  #boardActionInput {
    min-block-size: 44px;
    font-size: 1rem;
  }

  .settings-field input[type="color"] {
    inline-size: 3.25rem;
    block-size: 2.75rem;
  }

  .settings-actions {
    gap: 0.55rem;
  }

  .settings-actions .action {
    flex: 1 1 0;
    min-block-size: 44px;
  }

  .settings-actions-top .action {
    flex: 0 1 auto;
  }

  .shortcut-row {
    gap: 0.6rem;
  }

  .shortcut-keys {
    flex-wrap: wrap;
  }
}

@media (max-width: 430px) {
  .status-wrap > * {
    flex: 1 1 calc(50% - 0.3rem);
    justify-content: center;
    text-align: center;
  }

  #boardCodePill {
    flex-basis: 100%;
  }

  .pill,
  .action.compact {
    font-size: 0.76rem;
  }

  .controls {
    gap: 0.45rem;
  }

  .control-group span {
    font-size: 0.86rem;
  }

  .palette {
    gap: 0.3rem;
  }

  .zoom-percentage,
  .mouse-coordinates {
    font-size: 0.68rem;
  }

  .shortcut-row {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.35rem;
  }

  .shortcut-keys {
    justify-content: flex-start;
  }
}

@media (max-height: 560px) and (orientation: landscape) {
  body {
    padding-block: max(0.4rem, env(safe-area-inset-top));
  }

  .app-shell {
    gap: 0.55rem;
  }

  .topbar {
    padding-block: 0.55rem;
  }

  .mobile-gesture-hint {
    display: none;
  }

  #boardCanvas {
    height: max(300px, calc(100dvh - 1rem));
  }

  .settings-dialog,
  .export-dialog,
  .board-action-dialog,
  .shortcuts-dialog {
    max-block-size: calc(100dvh - 0.75rem);
  }
}

.settings-preview-note {
  margin: -0.25rem 0 0.9rem;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.4;
}