/* Editor pages — no site zoom/font-size pollution */
@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@400;500&family=Quicksand:wght@400;500;700&display=swap");

:root {
  --sm-font-body: "Quicksand", system-ui, sans-serif;
  --sm-font-display: "Poppins", "Quicksand", system-ui, sans-serif;
}

html.editor-page,
html.editor-page body,
html:has(.editor-layout),
html:has(.editor-layout) body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  max-height: 100dvh;
  overflow: hidden;
  position: static;
  font-size: 16px;
  font-family: var(--sm-font-display, "Poppins", "Quicksand", sans-serif);
  background-color: var(--editor-bg, #0a0a0f);
}

.editor-layout {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  background: var(--editor-bg, #0a0a0f);
  overflow: hidden;
  isolation: isolate;
  position: relative;
  padding-bottom: env(safe-area-inset-bottom, 0px);
  box-sizing: border-box;
}

.editor-chrome {
  flex: 0 0 auto;
  position: relative;
  z-index: 1;
  min-height: 52px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 6px 16px;
  flex-wrap: wrap;
  row-gap: 6px;
  background: linear-gradient(
    180deg,
    var(--editor-bar-top, #14141f) 0%,
    var(--editor-bar-bottom, #101018) 100%
  );
  border-bottom: 3px solid var(--editor-bar-border, var(--editor-accent, var(--smr-accent, var(--sm-accent))));
  box-shadow: none;
  min-width: 0;
}

.editor-chrome-cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 8px 12px;
  flex: 1 1 auto;
  min-width: 0;
}

.editor-chrome-tools {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 4px;
  flex-wrap: wrap;
  min-width: 0;
}

.editor-chrome-tool {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--sm-font-body, "Quicksand", sans-serif);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--editor-muted, var(--sm-muted, #a8abb8));
  white-space: nowrap;
}

.editor-chrome-tool input {
  width: 52px;
  padding: 5px 7px;
  border-radius: 6px;
  border: 1px solid var(--editor-border, rgba(255, 255, 255, 0.18));
  background: rgba(0, 0, 0, 0.28);
  color: var(--editor-text, var(--sm-text, #eef0f4));
  font-family: inherit;
  font-size: 12px;
}

.editor-chrome-mix {
  gap: 6px;
}

.editor-chrome-mix-btn {
  border: 1px solid var(--editor-chrome-border, var(--editor-border, rgba(255, 255, 255, 0.14)));
  background: rgba(0, 0, 0, 0.35);
  color: #fff;
  border-radius: 8px;
  min-height: 32px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.editor-chrome-mix-btn.active {
  background: var(--editor-accent, var(--smr-accent, var(--sm-accent)));
  border-color: transparent;
}

.editor-chrome-midi select {
  min-height: 32px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: #0a0a0f;
  color: #fff;
  max-width: min(42vw, 220px);
}

.editor-chrome--track {
  gap: 12px;
  padding: 8px 12px;
}

.track-mode-root .track-column-title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--sm-link, var(--editor-accent, var(--sm-accent)));
}

.editor-chrome--compact {
  min-height: 0;
  padding: 0;
  border-bottom: none;
  background: transparent;
  box-shadow: none;
}

.editor-chrome-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  flex: 0 1 auto;
  min-width: 0;
  overflow: hidden;
}

.editor-chrome-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  flex-wrap: wrap;
  justify-content: flex-end;
  max-width: 100%;
  min-width: 0;
}

.editor-chrome-link {
  font-family: var(--sm-font-body, "Quicksand", sans-serif);
  font-size: 13px;
  font-weight: 600;
  color: var(--editor-text, var(--sm-text, #eef0f4));
  text-decoration: none;
  padding: 6px 12px;
  min-height: 34px;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

button.editor-chrome-link {
  appearance: none;
  -webkit-appearance: none;
  border: none;
  cursor: pointer;
  background: transparent;
  font-family: inherit;
}

.editor-chrome-link:hover {
  color: var(--editor-text, var(--sm-text, #fff));
  background: color-mix(in srgb, var(--editor-accent, var(--smr-accent, var(--sm-accent))) 22%, transparent);
  border-color: color-mix(in srgb, var(--editor-accent, var(--smr-accent, var(--sm-accent))) 40%, transparent);
}

.editor-chrome-settings {
  appearance: none;
  -webkit-appearance: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  background: transparent;
  color: var(--editor-text, var(--sm-text, #eef0f4));
  padding: 6px 10px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
}

.editor-chrome-settings::before {
  content: none;
}

.editor-chrome-settings:hover {
  color: #fff;
  background: color-mix(in srgb, var(--editor-accent, var(--smr-accent, var(--sm-accent))) 28%, transparent);
}

.editor-chrome-settings.active {
  color: #fff;
  background: color-mix(in srgb, var(--editor-accent, var(--smr-accent, var(--sm-accent))) 32%, transparent);
}

.editor-settings-panel {
  flex: 0 0 auto;
  border-bottom: 1px solid color-mix(in srgb, var(--editor-chrome-border, var(--editor-bar-border, var(--editor-accent, var(--smr-accent, var(--sm-accent))))) 35%, transparent);
  background: linear-gradient(
    180deg,
    var(--editor-bar-bottom, #101018),
    var(--editor-bg, #0a0a0f)
  );
  max-height: min(52vh, 420px);
  overflow: auto;
}

.editor-settings-panel-inner {
  padding: 14px 16px 16px;
  max-width: 520px;
}

.editor-settings-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.editor-settings-panel-head h2 {
  margin: 0;
  font-family: var(--sm-font-body, "Quicksand", sans-serif);
  font-size: 1rem;
  color: #fff;
}

.editor-settings-close {
  appearance: none;
  border: none;
  background: transparent;
  color: #ffffffaa;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 4px 8px;
}

.editor-settings-close:hover {
  color: #fff;
}

.editor-settings-panel label {
  display: block;
  font-size: 0.78rem;
  color: #ffffff99;
  margin: 10px 0 6px;
}

.editor-settings-panel select,
.editor-settings-panel input[type="text"] {
  width: 100%;
  box-sizing: border-box;
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: #0a0a0f;
  color: #fff;
  font-family: inherit;
  font-size: 0.9rem;
}

.editor-settings-check {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 12px;
  font-size: 0.82rem;
  color: #ffffffaa;
}

.editor-settings-actions {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.editor-settings-apply {
  flex: 1;
  margin: 0;
  padding: 10px 16px;
  font-size: 0.9rem;
}

.editor-palette-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 8px 0 4px;
}

.editor-palette-swatch {
  width: 24px;
  height: 24px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.08);
}

.editor-settings-muted,
.custom-palette-editor .custom-palette-hint {
  margin: 0 0 10px;
  font-size: 0.78rem;
  color: #ffffff77;
  line-height: 1.4;
}

.custom-palette-editor--editor .custom-palette-grid {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 6px;
}

.custom-palette-editor--editor .custom-palette-save-controls input[type="text"],
.custom-palette-editor--editor .custom-palette-saved-controls select {
  width: 100%;
  box-sizing: border-box;
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: #0a0a0f;
  color: #fff;
  font-family: inherit;
  font-size: 0.9rem;
}

.custom-palette-editor--editor .custom-palette-saved-row label,
.custom-palette-editor--editor .custom-palette-save-row label {
  display: block;
  font-size: 0.78rem;
  color: #ffffff99;
  margin: 10px 0 6px;
}

.custom-palette-editor--editor .custom-palette-saved-msg {
  color: #86efac;
  font-size: 0.78rem;
}

.editor-chrome-spacer {
  flex: 1;
}

.editor-shell {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  background-color: #0a0a0f;
  overflow: hidden;
}

.editor-frame {
  /* Iframes as flex items use intrinsic/content height as flex-basis.
     height:0 + flex-grow makes the host fill the space under EditorNav.
     EditorFrame also writes an explicit pixel height so the nested
     document's viewport matches the painted box (otherwise #bottom can
     sit in a 0-height iframe under the parent chrome). */
  flex: 1 1 0%;
  align-self: stretch;
  width: 100%;
  min-width: 0;
  min-height: 0;
  height: 0;
  border: 0;
  background: #0a0a0f;
  display: block;
  position: relative;
  z-index: 4;
  pointer-events: auto;
}

.editor-loading {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: stretch;
  color: #fff;
  font-family: var(--sm-font-body, "Quicksand", sans-serif);
  background:
    radial-gradient(circle at 50% 20%, rgba(96, 165, 250, 0.16), transparent 55%),
    #0a0a0f;
}

.editor-loading .smr-loading-overlay,
.editor-layout .editor-loading-shell {
  opacity: 1 !important;
  display: flex !important;
}

.editor-loading .editor-nav-back {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2147483001;
}

.editor-incompatible {
  display: none;
  text-align: center;
  padding: 20px;
  color: #fff;
  height: 100%;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.track-mode-loading {
  color: var(--sm-text, var(--editor-text, #eef0f4));
  background: var(--sm-bg, var(--editor-bg, #0a0a0f));
  min-height: 100vh;
  min-height: 100dvh;
}

.track-mode-root {
  --track-chrome-divider: rgba(255, 255, 255, 0.1);
  background-color: var(--editor-bg, var(--sm-bg, #0a0a0f));
  height: 100vh;
  height: 100dvh;
  margin: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  color: var(--sm-text, #eef0f4);
}

.track-mode-root #horizontal {
  flex: 1 1 auto;
  min-height: 0;
  white-space: nowrap;
  outline: 4px solid var(--track-chrome-divider);
  -webkit-overflow-scrolling: touch;
  background: var(--editor-bg, #0a0a0f);
  contain: layout style paint;
}

.track-mode-root #horizontal.list-layout {
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-gutter: stable;
  scrollbar-width: thin;
  box-sizing: border-box;
  /* Overlay scrollbars on Windows Chrome can ignore gutter and paint on iframes. */
  padding-bottom: 12px;
  overscroll-behavior-x: contain;
  scroll-behavior: auto;
}

.track-mode-root #horizontal.list-layout::-webkit-scrollbar {
  height: 12px;
}

.track-mode-root #horizontal.list-layout::-webkit-scrollbar-track {
  background: color-mix(in srgb, var(--editor-bg, #0a0a0f) 88%, var(--editor-accent, var(--smr-accent, var(--sm-accent))) 12%);
}

.track-mode-root #horizontal.list-layout::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--editor-accent, var(--smr-accent, var(--sm-accent))) 42%, var(--editor-bg, #0a0a0f) 58%);
  border-radius: 6px;
  border: 2px solid color-mix(in srgb, var(--editor-bg, #0a0a0f) 88%, var(--editor-accent, var(--smr-accent, var(--sm-accent))) 12%);
}

.track-mode-root #horizontal.list-layout::-webkit-scrollbar-thumb:hover {
  background: var(--editor-accent, var(--smr-accent, var(--sm-accent)));
}

.track-mode-root .track-column {
  display: inline-flex;
  flex-direction: column;
  vertical-align: top;
  width: var(--track-column-width, 1200px);
  height: 100%;
  min-height: 0;
  border-right: 4px solid var(--track-chrome-divider);
  box-sizing: border-box;
  white-space: normal;
  contain: layout style paint;
}

.track-mode-root--edit #horizontal.list-layout .track-column {
  contain-intrinsic-size: var(--track-column-width, 1200px) 720px;
}

.track-mode-root .track-column-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  height: 40px;
  padding: 0 14px;
  margin: 0;
  border: none;
  cursor: pointer;
  font: inherit;
  background: linear-gradient(
    180deg,
    var(--editor-bar-top, #1a1a22) 0%,
    var(--editor-bar-bottom, #12151e) 100%
  );
  border-bottom: 2px solid var(--editor-bar-border, var(--editor-accent, var(--smr-accent, var(--sm-accent))));
  color: var(--sm-text, #fff);
  box-sizing: border-box;
}

.track-mode-root .track-column-toolbar {
  display: flex;
  align-items: stretch;
  flex-shrink: 0;
  width: 100%;
  position: relative;
  z-index: 3;
}

.track-mode-root .track-column-toolbar .track-column-header {
  flex: 1 1 auto;
  min-width: 0;
  border-bottom: none;
}

.track-mode-root .track-column-toolbar {
  background: linear-gradient(
    180deg,
    var(--editor-bar-top, #1a1a22) 0%,
    var(--editor-bar-bottom, #12151e) 100%
  );
  border-bottom: 2px solid var(--editor-bar-border, var(--editor-accent, var(--smr-accent, var(--sm-accent))));
}

.track-mode-root .track-column-remove {
  flex: 0 0 36px;
  width: 36px;
  border: none;
  margin: 0;
  padding: 0;
  cursor: pointer;
  font: inherit;
  font-size: 22px;
  line-height: 1;
  color: var(--sm-text, #fff);
  background: transparent;
}

.track-mode-root .track-column-remove:hover:not(:disabled) {
  color: #fff;
  background: color-mix(in srgb, #ef4444 55%, transparent);
}

.track-mode-root .track-column-remove:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.track-mode-root .track-column-add {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  vertical-align: top;
  width: 160px;
  height: 100%;
  min-height: 0;
  border: none;
  border-right: 4px solid var(--track-chrome-divider);
  background: color-mix(in srgb, var(--editor-bg, #0a0a0f) 88%, var(--editor-accent, var(--smr-accent, var(--sm-accent))) 12%);
  color: var(--sm-text, #fff);
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

.track-mode-root .track-column-add span {
  font-size: 36px;
  line-height: 1;
  font-weight: 500;
}

.track-mode-root .track-column-add:hover:not(:disabled) {
  background: color-mix(in srgb, var(--editor-bg, #0a0a0f) 72%, var(--editor-accent, var(--smr-accent, var(--sm-accent))) 28%);
}

.track-mode-root .track-column-add:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.track-mode-root .track-column-chevron {
  font-size: 11px;
  opacity: 0.72;
  margin-left: auto;
}

.track-mode-root--compact-labels .track-column-header {
  height: 32px;
  padding: 0 10px;
  font-size: 13px;
}

.track-mode-root--compact-labels .track-column-remove {
  flex-basis: 28px;
  width: 28px;
  font-size: 18px;
}

.track-mode-root .track-column--collapsed {
  width: 56px;
  min-width: 56px;
}

.track-mode-root .track-column--collapsed .track-column-toolbar {
  flex-direction: column;
  width: 56px;
  height: 100%;
}

.track-mode-root .track-column--collapsed .track-column-header {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  height: 100%;
  min-height: 120px;
  padding: 10px 0;
}

.track-mode-root .track-column--collapsed .track-column-remove {
  flex: 0 0 36px;
  height: 36px;
  width: 100%;
}

.track-mode-root .track-column-collapsed-placeholder {
  flex: 1;
  min-height: 80px;
  background: color-mix(in srgb, var(--editor-bg, #0a0a0f) 92%, var(--editor-accent, var(--smr-accent, var(--sm-accent))) 8%);
}

.track-mode-boot-banner {
  flex-shrink: 0;
  padding: 8px 16px;
  text-align: center;
  font-size: 13px;
  color: var(--editor-muted, var(--sm-muted, #a8abb8));
  background: color-mix(in srgb, var(--editor-bg, #0a0a0f) 90%, var(--editor-accent, var(--smr-accent, var(--sm-accent))) 10%);
  border-bottom: 1px solid var(--editor-border, rgba(255, 255, 255, 0.12));
}

.track-mode-drop-overlay {
  position: fixed;
  inset: 72px 0 88px;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 600;
  color: var(--editor-text-on-accent, #fff);
  background: color-mix(in srgb, var(--editor-accent, var(--smr-accent, var(--sm-accent))) 22%, transparent);
  border: 3px dashed var(--editor-accent, var(--smr-accent, var(--sm-accent)));
  z-index: 40;
}

.track-mode-root--busy .track-mode-bottom-actions .button:not(:disabled) {
  opacity: 0.72;
}

.track-mode-import-btn::before {
  opacity: 1;
}

#bottom.track-mode-bottom #import-button.track-mode-import-btn {
  min-width: 48px;
}

.track-mode-root .track-column-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.track-mode-root .track-play-btn {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 6px;
  color: var(--sm-text-on-accent, #fff);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  background: var(--sm-surface, rgba(0, 0, 0, 0.35));
  border: 1px solid var(--sm-border, rgba(255, 255, 255, 0.14));
  padding-left: 2px;
}

.track-mode-root .track-play-btn:hover {
  filter: brightness(1.12);
}

.track-mode-root .track-play-btn.playing {
  background: var(--editor-accent, var(--smr-accent, var(--sm-accent)));
  border-color: transparent;
  padding-left: 0;
}

.track-mode-root .track-column .track-iframe--hidden {
  display: none !important;
  visibility: hidden;
  pointer-events: none;
}

.track-mode-root .track-column-loading-placeholder {
  flex: 1;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sm-muted, rgba(255, 255, 255, 0.55));
  font-size: 13px;
  font-weight: 600;
  background: rgba(0, 0, 0, 0.18);
  border-radius: 8px;
  margin: 4px 8px 8px;
}

.track-mode-root .track-column .track-iframe {
  flex: 1 1 auto;
  width: 100%;
  min-height: 0;
  height: auto;
  border: 0;
  display: block;
  pointer-events: auto;
}

.track-mode-root #horizontal.showcase-layout {
  display: grid;
  grid-template-columns: repeat(var(--showcase-cols, 2), minmax(0, 1fr));
  grid-template-rows: repeat(var(--showcase-rows, 2), minmax(0, 1fr));
  align-items: stretch;
  align-content: stretch;
  justify-items: stretch;
  gap: 0;
  padding: 0;
  margin: 0;
  white-space: normal;
  overflow: hidden;
  min-height: 0;
  contain: layout style;
}

.track-mode-root--showcase #horizontal {
  outline: none;
  flex: 1 1 0;
  min-height: 0;
  height: 100%;
}

.track-mode-root--showcase .track-column {
  display: flex;
  flex-direction: column;
  width: auto;
  height: 100%;
  min-width: 0;
  min-height: 0;
  align-self: stretch;
  overflow: hidden;
  position: relative;
  border: none;
  border-right: 1px solid var(--track-chrome-divider);
  border-bottom: 1px solid var(--track-chrome-divider);
  box-sizing: border-box;
  content-visibility: visible;
  contain: layout style paint;
}

.track-mode-root--showcase .track-column-header {
  display: none;
}

.track-mode-root--showcase .track-column-toolbar {
  display: none !important;
}

.track-mode-root--showcase .track-column-remove {
  width: 28px;
  height: 28px;
  flex-basis: 28px;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.55);
  font-size: 18px;
}

.track-mode-root--showcase .track-column .track-iframe {
  /* Flex item: height:0 avoids the iframe's intrinsic 300×150 box so every
     pane reports the same viewport to Song Maker's tile-size math. */
  flex: 1 1 0%;
  align-self: stretch;
  width: 100%;
  height: 0;
  min-width: 0;
  min-height: 0;
}

.track-mode-root .track-iframe {
  border: 0;
  vertical-align: top;
}

.track-mode-root--showcase .editor-chrome--compact {
  display: none !important;
}

.track-mode-root .track-grid-toggle {
  display: none !important;
}

.editor-chrome--track .track-grid-toggle.active {
  background: var(--editor-accent, var(--smr-accent, var(--sm-accent)));
  color: #fff;
}

.track-mode-root #edit-link {
  display: none !important;
  visibility: hidden !important;
  pointer-events: none !important;
}

.track-mode-root #bottom.track-mode-bottom {
  flex: 0 0 auto;
  position: relative;
  left: auto;
  bottom: auto;
  width: 100%;
  height: auto;
  min-height: 56px;
  background-color: transparent;
  background-image: linear-gradient(
    180deg,
    var(--editor-bottom-top, var(--editor-bar-top, #0c0c12)),
    var(--editor-bottom-bottom, var(--editor-bg, #0a0a0f))
  );
  border-top: 4px solid var(--editor-bottom-border, var(--editor-bar-border, var(--editor-accent, var(--smr-accent, var(--sm-accent)))));
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: clamp(8px, 2vmin, 24px);
  padding: 8px clamp(8px, 2vmin, 16px) max(10px, env(safe-area-inset-bottom, 0px));
  box-sizing: border-box;
}

.track-mode-bottom-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: clamp(8px, 2vmin, 24px);
  min-width: 0;
}

.track-mode-playback-start {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 6px 12px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--smr-muted, #cbd5e1);
  font-size: 12px;
  line-height: 1.2;
  cursor: default;
  user-select: none;
}

.track-mode-playback-start.is-armed {
  background: rgba(96, 165, 250, 0.22);
  border-color: var(--smr-link, #60a5fa);
  box-shadow: 0 0 0 2px rgba(96, 165, 250, 0.35);
  cursor: pointer;
}

.track-mode-playback-start-label {
  font-weight: 600;
  white-space: nowrap;
}

.track-mode-playback-start-hint,
.track-playback-start-note {
  display: none !important;
}

.track-mode-root #bottom.track-mode-bottom .button,
.track-mode-root #bottom.track-mode-bottom .clear-button {
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  width: clamp(52px, 10vmin, 80px);
  height: clamp(52px, 10vmin, 80px);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  color: transparent;
  font-size: 0;
  background-color: transparent;
  background-repeat: no-repeat;
  background-position: center;
  pointer-events: auto;
}

.track-mode-root #bottom.track-mode-bottom #play-button {
  width: clamp(52px, 10vmin, 80px);
  height: clamp(52px, 10vmin, 80px);
}

.track-mode-root #bottom.track-mode-bottom #play-button::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: 50%;
  background-color: var(--editor-accent, var(--smr-accent, var(--sm-accent)));
  background-image: url("data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMjZweCIgaGVpZ2h0PSIzM3B4IiB2aWV3Qm94PSIwIDAgMjYgMzMiIHZlcnNpb249IjEuMSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48ZyBmaWxsPSIjRkZGRkZGIiB0cmFuc2Zvcm09InRyYW5zbGF0ZSgtNDEuMDAwMDAwLCAtMzMuMDAwMDAwKSI+PGcgdHJhbnNmb3JtPSJ0cmFuc2xhdGUoMjMuMDAwMDAwLCAyMi4wMDAwMDApIj48cG9seWdvbiBwb2ludHM9IjE4LjMzMzMzMzMgMTEuNDU4MzMzMyAxOC4zMzMzMzMzIDQzLjU0MTY2NjcgNDMuNTQxNjY2NyAyNy41Ii8+PC9nPjwvZz48L3N2Zz4=");
  background-size: 44%;
  background-repeat: no-repeat;
  background-position: center;
}

.track-mode-root #bottom.track-mode-bottom #play-button:hover::before {
  background-color: color-mix(in srgb, var(--editor-accent, var(--smr-accent, var(--sm-accent))) 82%, #fff);
}

.track-mode-root #bottom.track-mode-bottom #play-button.playing::before {
  background-color: color-mix(in srgb, var(--editor-accent, var(--smr-accent, var(--sm-accent))) 72%, #000);
  background-image: url("data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMjZweCIgaGVpZ2h0PSIzM3B4IiB2aWV3Qm94PSIwIDAgMjYgMzMiIHZlcnNpb249IjEuMSIgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIj48ZyBmaWxsPSIjRkZGRkZGIiB0cmFuc2Zvcm09InRyYW5zbGF0ZSgtNDEuMDAwMDAwLCAtMzMuMDAwMDAwKSI+PGcgdHJhbnNmb3JtPSJ0cmFuc2xhdGUoMjMuMDAwMDAwLCAyMi4wMDAwMDApIj48cmVjdCB4PSIxNiIgeT0xMS40NTgzMzMzIHR3aWR0aD0iNS41IiBoZWlnaHQ9IjMyLjA4MzMzMzMiLz48cmVjdCB4PSIzMS41IiB5PSIxMS40NTgzMzMzIHR3aWR0aD0iNS41IiBoZWlnaHQ9IjMyLjA4MzMzMzMiLz48L2c+PC9nPjwvc3ZnPg==");
}

.track-mode-root #bottom.track-mode-bottom #import-button::before,
.track-mode-root #bottom.track-mode-bottom #save-button::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: 50%;
  background-color: rgba(0, 0, 0, 0.58);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.14);
  background-size: 44%;
  background-repeat: no-repeat;
  background-position: center;
}

.track-mode-root #bottom.track-mode-bottom #import-button::before {
  background-image: url(/song-maker/images/icon-btn-import.svg);
}

.track-mode-root #bottom.track-mode-bottom #save-button::before {
  background-image: url(/song-maker/images/icon-btn-save.svg);
}

.track-mode-root #bottom.track-mode-bottom #import-button:hover::before,
.track-mode-root #bottom.track-mode-bottom #save-button:hover::before {
  background-color: var(--sm-surface-hover, rgba(255, 255, 255, 0.08));
  box-shadow:
    inset 0 0 0 1px var(--sm-border-strong, rgba(255, 255, 255, 0.22)),
    0 0 0 1px var(--editor-accent, var(--smr-accent, var(--sm-accent)));
}

.track-mode-root .track-save-status {
  position: static;
  color: var(--sm-muted, #ccc);
  font-size: clamp(12px, 2vmin, 14px);
  white-space: nowrap;
  min-width: 0;
}

.track-mode-root #bottom.track-mode-bottom .track-mode-ungrid-btn {
  position: static;
  transform: none;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: clamp(4px, 1vmin, 8px);
  min-width: clamp(72px, 14vmin, 96px);
  height: clamp(36px, 7vmin, 44px);
  padding: 0 clamp(12px, 2.5vmin, 16px);
  margin-left: auto;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  font-family: inherit;
  font-size: clamp(12px, 2vmin, 14px);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--sm-text, #fff);
  background-color: var(--sm-surface, rgba(0, 0, 0, 0.58));
  box-shadow: inset 0 0 0 1px var(--sm-border, rgba(255, 255, 255, 0.14));
}

.track-mode-root #bottom.track-mode-bottom .track-mode-ungrid-btn::before {
  content: "";
  flex-shrink: 0;
  width: clamp(14px, 2.5vmin, 18px);
  height: clamp(14px, 2.5vmin, 18px);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round'%3E%3Cline x1='4' y1='6' x2='20' y2='6'/%3E%3Cline x1='4' y1='12' x2='20' y2='12'/%3E%3Cline x1='4' y1='18' x2='20' y2='18'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  opacity: 0.92;
}

.track-mode-root #bottom.track-mode-bottom .track-mode-ungrid-btn:hover {
  background-color: var(--sm-surface-hover, rgba(255, 255, 255, 0.08));
  box-shadow:
    inset 0 0 0 1px var(--sm-border-strong, rgba(255, 255, 255, 0.22)),
    0 0 0 1px var(--editor-accent, var(--smr-accent, var(--sm-accent)));
}

.track-mode-root #bottom.track-mode-bottom .track-mode-ungrid-btn:hover::before {
  opacity: 1;
}

.track-mode-root #bottom.track-mode-bottom .track-mode-add-btn {
  color: var(--sm-text, #fff) !important;
  font-size: clamp(28px, 6vmin, 40px) !important;
  font-weight: 500;
  line-height: 1;
  background: var(--sm-surface, rgba(0, 0, 0, 0.58));
  box-shadow: inset 0 0 0 2px var(--sm-border, rgba(255, 255, 255, 0.18));
}

.track-mode-root #bottom.track-mode-bottom .track-mode-add-btn:hover:not(:disabled) {
  box-shadow:
    inset 0 0 0 2px var(--editor-accent, var(--smr-accent, var(--sm-accent))),
    0 0 0 1px var(--editor-accent, var(--smr-accent, var(--sm-accent)));
}

.track-mode-root #bottom.track-mode-bottom .track-mode-add-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.track-mode-root .editor-chrome--compact {
  position: static;
  flex: 0 0 auto;
  padding: 8px 12px;
  background: linear-gradient(
    180deg,
    var(--editor-bar-top, #14141f) 0%,
    var(--editor-bar-bottom, #101018) 100%
  );
  border-bottom: 3px solid var(--editor-bar-border, var(--editor-accent, var(--smr-accent, var(--sm-accent))));
  min-height: 42px;
  justify-content: space-between;
}

.editor-chrome--track .track-grid-toggle {
  margin-left: auto;
}

.track-mode-root .editor-settings-panel {
  flex: 0 0 auto;
  z-index: 20;
}

.track-mode-root .editor-chrome--compact .editor-chrome-link {
  background: var(--sm-surface, rgba(0, 0, 0, 0.35));
  border: 1px solid var(--sm-border, rgba(255, 255, 255, 0.14));
  color: var(--sm-text, #fff);
  min-width: clamp(64px, 12vmin, 88px);
  height: clamp(36px, 7vmin, 44px);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.track-mode-root .editor-chrome--compact .editor-chrome-link:hover {
  background: color-mix(in srgb, var(--editor-accent, var(--smr-accent, var(--sm-accent))) 28%, transparent);
  border-color: color-mix(in srgb, var(--editor-accent, var(--smr-accent, var(--sm-accent))) 45%, transparent);
  color: var(--sm-text, #fff);
}

@media (max-width: 960px) {
  .editor-chrome {
    padding: 6px 10px;
    gap: 8px;
    flex-wrap: wrap;
    min-height: 0;
  }

  .editor-chrome-brand {
    font-size: 13px;
    max-width: min(48vw, 180px);
    flex: 0 1 auto;
  }

  .editor-chrome-cluster {
    flex: 1 1 180px;
    justify-content: flex-end;
  }

  .editor-chrome-tools {
    margin-left: 0;
  }

  .editor-chrome-nav {
    margin-left: 0;
    gap: 4px;
  }

  .editor-chrome-link {
    min-height: 40px;
    padding: 8px 12px;
    font-size: 12px;
  }
}

@media (max-width: 720px) {
  .editor-chrome-cluster {
    flex: 1 1 100%;
    justify-content: flex-start;
  }

  .editor-chrome-tools,
  .editor-chrome-nav {
    width: 100%;
    justify-content: flex-start;
  }

  .track-mode-root {
    --track-column-width: min(100vw, 1200px);
  }

  .track-mode-root--narrow #horizontal.list-layout,
  .track-mode-root #horizontal.list-layout {
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    overflow-y: auto;
    white-space: normal;
    padding-bottom: 8px;
  }

  .track-mode-root #horizontal.list-layout .track-column {
    display: flex;
    width: 100%;
    min-width: 0;
    height: auto;
    min-height: min(78dvh, 640px);
    border-right: none;
    border-bottom: 4px solid color-mix(in srgb, var(--editor-bg, #0a0a0f) 88%, var(--editor-accent, var(--smr-accent, var(--sm-accent))) 12%);
  }

  .track-mode-root #horizontal.list-layout .track-column-add {
    width: 100%;
    min-height: 88px;
    height: auto;
    flex-direction: row;
    border-right: none;
  }

  .track-mode-root--showcase #horizontal.showcase-layout {
    grid-template-columns: repeat(var(--showcase-cols, 1), minmax(0, 1fr));
    grid-template-rows: repeat(var(--showcase-rows, 1), minmax(0, 1fr));
    overflow-x: hidden;
    overflow-y: auto;
  }

  .track-mode-root--showcase .track-column {
    min-height: 0;
  }

  .track-mode-root--showcase .track-column-toolbar {
    display: none !important;
  }

  .track-mode-root--showcase .track-column-remove {
    width: 44px;
    height: 40px;
    flex-basis: 44px;
    border-radius: 0;
    font-size: 22px;
  }

  .track-mode-root .track-save-status {
    display: none;
  }

  .track-mode-root .track-column-remove {
    flex-basis: 44px;
    width: 44px;
    min-height: 40px;
  }
}

@media (max-width: 600px) {
  .editor-chrome-brand {
    max-width: min(42vw, 160px);
  }
}

@media (min-width: 721px) and (max-width: 960px) {
  .track-mode-root--showcase #horizontal.showcase-layout {
    grid-template-columns: repeat(var(--showcase-cols, 2), minmax(0, 1fr));
    grid-template-rows: repeat(var(--showcase-rows, 2), minmax(0, 1fr));
    overflow-y: auto;
  }

  .track-mode-root--showcase .track-column {
    min-height: 0;
  }
}

@media (max-height: 520px) and (orientation: landscape) {
  .editor-chrome-cluster {
    flex: 1 1 100%;
    justify-content: flex-start;
  }

  .editor-chrome-tools,
  .editor-chrome-nav {
    width: auto;
    flex: 1 1 auto;
  }

  .track-mode-root #horizontal.list-layout {
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    overflow-y: auto;
  }

  .track-mode-root #horizontal.list-layout .track-column {
    width: 100%;
    min-height: 88dvh;
  }

  .track-mode-root--showcase #horizontal.showcase-layout {
    grid-template-columns: repeat(var(--showcase-cols, 1), minmax(0, 1fr));
    grid-template-rows: repeat(var(--showcase-rows, 1), minmax(0, 1fr));
    overflow-y: auto;
  }
}

@media (max-height: 520px) and (orientation: landscape) {
  .editor-chrome {
    flex-wrap: wrap;
    padding: 4px 10px;
    gap: 6px;
  }

  .editor-chrome-cluster {
    flex: 1 1 100%;
    justify-content: flex-start;
  }

  .track-mode-root #bottom.track-mode-bottom {
    padding-top: 6px;
    padding-bottom: max(8px, env(safe-area-inset-bottom, 0px));
  }
}

@media (min-width: 2400px) {
  .track-mode-root #horizontal.list-layout {
    scroll-behavior: auto;
  }
}

@media (max-width: 767px) {
  .editor-chrome-link {
    min-height: 44px;
  }

  .editor-chrome-tool input {
    min-height: 36px;
  }
}

/* Parent chrome / settings: one native thumb, no overlay. Vendor pseudos stay split. */
.editor-chrome input[type="range"],
.editor-settings-panel input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 28px;
  margin: 0;
  background: transparent;
}

.editor-chrome input[type="range"]::-webkit-slider-runnable-track,
.editor-settings-panel input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
}

.editor-chrome input[type="range"]::-webkit-slider-thumb,
.editor-settings-panel input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  margin-top: -5px;
  border-radius: 50%;
  background: var(--editor-accent, var(--smr-accent, var(--sm-accent)));
  border: none;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.85);
}

.editor-chrome input[type="range"]::-moz-range-track,
.editor-settings-panel input[type="range"]::-moz-range-track {
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
}

.editor-chrome input[type="range"]::-moz-range-thumb,
.editor-settings-panel input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--editor-accent, var(--smr-accent, var(--sm-accent)));
  border: none;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.85);
}

.editor-chrome input[type="range"]::-ms-track,
.editor-settings-panel input[type="range"]::-ms-track {
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  border-color: transparent;
  color: transparent;
}

.editor-chrome input[type="range"]::-ms-thumb,
.editor-settings-panel input[type="range"]::-ms-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--editor-accent, var(--smr-accent, var(--sm-accent)));
  border: none;
}

/* Device class also activates compact editor chrome in Safari desktop mode. */
html.smr-device-mobile .editor-chrome {
  padding: 6px 10px;
  gap: 8px;
  flex-wrap: wrap;
  min-height: 0;
}

html.smr-device-mobile .editor-chrome-brand {
  flex: 0 1 auto;
  max-width: min(190px, 46vw);
  min-width: 0;
  overflow: visible;
}

html.smr-device-mobile .editor-chrome-brand .site-logo {
  height: 34px;
  max-width: 100%;
  overflow: visible;
}

html.smr-device-mobile .editor-chrome-brand .site-logo > svg {
  width: auto;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
}

html.smr-device-mobile .editor-chrome-cluster {
  flex: 1 1 180px;
  justify-content: flex-end;
}

html.smr-device-mobile .editor-chrome-link {
  min-height: 40px;
  padding: 8px 10px;
  font-size: 12px;
}

html.smr-device-mobile .track-mode-root {
  --track-column-width: min(100vw, 1200px);
}

html.smr-device-mobile .track-mode-root #horizontal.list-layout {
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  overflow-y: auto;
  white-space: normal;
}

html.smr-device-mobile .track-mode-root #horizontal.list-layout .track-column {
  display: flex;
  width: 100%;
  min-width: 0;
  height: auto;
  min-height: min(78dvh, 640px);
}

@media (max-height: 500px) and (orientation: landscape) {
  html.smr-device-mobile .editor-chrome {
    flex-wrap: nowrap;
    padding: 3px 6px;
    gap: 5px;
    min-height: 38px;
  }

  html.smr-device-mobile .editor-chrome-brand {
    flex: 0 0 auto;
    max-width: 140px;
  }

  html.smr-device-mobile .editor-chrome-brand .site-logo {
    height: 28px;
  }

  html.smr-device-mobile .editor-chrome-cluster {
    flex: 1 1 auto;
    flex-wrap: nowrap;
    justify-content: flex-end;
    min-width: 0;
  }

  html.smr-device-mobile .editor-chrome-tools,
  html.smr-device-mobile .editor-chrome-nav {
    width: auto;
    flex: 0 1 auto;
    flex-wrap: nowrap;
    gap: 3px;
  }

  html.smr-device-mobile .editor-chrome-tool {
    gap: 3px;
    font-size: 11px;
  }

  html.smr-device-mobile .editor-chrome-tool input {
    width: 42px;
    min-height: 30px;
    padding: 3px 5px;
  }

  html.smr-device-mobile .editor-chrome-link,
  html.smr-device-mobile .track-mode-root .editor-chrome--compact .editor-chrome-link {
    min-width: 0;
    min-height: 30px;
    height: 30px;
    padding: 4px 7px;
    font-size: 11px;
  }

  html.smr-device-mobile .track-mode-root #horizontal.list-layout .track-column {
    min-height: calc(100dvh - 92px);
  }

  html.smr-device-mobile .track-mode-root #bottom.track-mode-bottom {
    min-height: 46px;
    flex-wrap: nowrap;
    gap: 6px;
    padding: 3px 6px max(4px, env(safe-area-inset-bottom, 0px));
  }

  html.smr-device-mobile .track-mode-bottom-actions {
    flex-wrap: nowrap;
    gap: 5px;
  }

  html.smr-device-mobile .track-mode-root #bottom.track-mode-bottom .button,
  html.smr-device-mobile .track-mode-root #bottom.track-mode-bottom .clear-button,
  html.smr-device-mobile .track-mode-root #bottom.track-mode-bottom #play-button {
    width: 34px;
    height: 34px;
  }

  html.smr-device-mobile .track-mode-root #bottom.track-mode-bottom .track-mode-ungrid-btn {
    min-width: 62px;
    height: 32px;
    padding-inline: 8px;
    font-size: 11px;
  }
}