styles.css

/* ==========================================================================
   ASCII Guitar Tab Editor — styles

   The chrome (buttons, dialogs, toasts, …) is Jelly UI web components; this
   file styles the custom parts: the monospace tab grid, block cards, chord
   popup, perform mode, and dialog content layout.

   Theme tokens mirror Jelly UI's palette (LIGHT_TOKENS / DARK_TOKENS in
   js/vendor/jelly.js) so the custom UI matches the components in both
   modes. The app follows the OS scheme, same as <jelly-theme mode="auto">.
   ========================================================================== */

/* --- Theme tokens (bridged to Jelly UI's palette) --- */

:root {
  color-scheme: light dark;

  --bg: oklch(0.9906 0.0017 247.84);      /* jelly background-muted */
  --card: oklch(1 0 0);                    /* jelly background-surface */
  --fg: oklch(0.2609 0.0238 267.11);       /* jelly foreground-default */
  --muted: oklch(0.503 0.0269 266.68);     /* jelly foreground-muted */
  --border: oklch(0.9439 0.004 286.32);    /* jelly border-default */
  --neutral: oklch(0.8884 0 0);            /* jelly background-neutral */
  --accent: oklch(0.5601 0.1577 249.8);    /* jelly background-accent / azure */
  --mint: oklch(0.5489 0.1374 151.7);
  --amber: oklch(0.5779 0.1495 51.54);
  --danger: oklch(0.5771 0.2152 27.33);    /* jelly rose */
  --purple: oklch(0.58 0.19 295);

  --cursor-bg: color-mix(in srgb, var(--fg) 16%, transparent);
  --cursor-ring: color-mix(in srgb, var(--fg) 28%, transparent);
  --sel-bg: color-mix(in srgb, var(--accent) 22%, transparent);
  --sel-bg-cursor: color-mix(in srgb, var(--accent) 45%, transparent);
  --shadow: 0 6px 24px color-mix(in srgb, var(--fg) 8%, transparent);

  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Fira Code", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: oklch(0.2198 0.006 236.84);      /* jelly dark background-default */
    --card: oklch(0.2514 0.0163 264.22);   /* jelly dark background-surface */
    --fg: oklch(0.9645 0.0054 274.97);
    --muted: oklch(0.7595 0.0259 265.54);
    --border: oklch(0.3674 0.0201 266.01);
    --neutral: oklch(0.3674 0.0201 266.01);
    --accent: oklch(0.7112 0.1559 250.96);
    --mint: oklch(0.72 0.15 151.7);
    --amber: oklch(0.75 0.14 65);
    --purple: oklch(0.72 0.16 295);
    --shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
  }
}

/* --- Base --- */

html,
body {
  min-height: 100%;
  background: var(--bg);
  color: var(--fg);
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.is-hidden {
  display: none !important;
}

/* --- Toolbar --- */

.toolbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  padding: 0.65rem 0.75rem;
  background: color-mix(in srgb, var(--card) 88%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.toolbar-spacer {
  margin-left: auto;
}

/* Compact jelly buttons (they default to a wide min-width) */
.tb-btn {
  --jelly-button-min-width: 0;
}

/* The mode pill changes hue with the mode — playful and glanceable */
#mode-control {
  --jelly-pill: var(--purple);
}

#mode-control[value="shift"] {
  --jelly-pill: var(--mint);
}

#mode-control[value="insert"] {
  --jelly-pill: var(--amber);
}

/* --- Layout --- */

.wrap {
  max-width: min(1200px, 96vw);
  margin: 1rem auto 4rem;
  padding: 0 1rem;
}

/* --- Blocks (cards) --- */

.block {
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--card);
  margin: 0.75rem 0 1rem;
  padding: 0.6rem 0.6rem 0.8rem 0.6rem;
  position: relative;
  min-width: fit-content;
  box-shadow: var(--shadow);
}

/* Docked text sits flush on top of its tab block */
.block.docked-text {
  margin-bottom: 0;
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  border-bottom: none;
  padding-bottom: 0;
}

.block.has-docked-text {
  margin-top: 0;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
  padding-top: 0;
}

.text-content {
  font: 16px/1.5 var(--mono);
  color: var(--fg);
  background: transparent;
  border: none;
  outline: none;
  width: 100%;
  min-width: calc((var(--line-length, 80) + 2) * 1ch);
  resize: none;
  padding: 0;
  min-height: 1.5em;
  overflow: hidden;
  box-sizing: border-box;
  white-space: pre;
}

.text-content::placeholder {
  color: var(--muted);
}

/* --- Per-block controls --- */

.block-controls {
  position: absolute;
  top: 0.35rem;
  bottom: 0.35rem;
  right: 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  align-items: flex-end;
  justify-content: flex-start;
  z-index: 12;
}

.block-btn {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg);
  padding: 0.2rem 0.55rem;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  opacity: 0.85;
  transition: transform 0.12s cubic-bezier(0.34, 1.56, 0.64, 1), border-color 0.15s ease, opacity 0.15s ease;
  display: flex;
  justify-content: center;
  align-items: center;
}

.block-btn:hover {
  border-color: var(--accent);
  opacity: 1;
  transform: scale(1.08);
}

.block-btn:active {
  transform: scale(0.88);
}

.block-btn-bottom {
  margin-top: auto;
}

.block-btn-equal {
  min-width: 2.6rem;
  text-align: center;
  padding-left: 0;
  padding-right: 0;
}

.block-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  transform: none;
}

.clipboard-btn.is-hidden {
  display: none !important;
}

.block-remove-handle {
  position: absolute;
  bottom: -10px;
  right: -12px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--danger) 55%, var(--border));
  background: color-mix(in srgb, var(--danger) 18%, var(--card));
  color: var(--danger);
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow);
  z-index: 11;
  transition: transform 0.12s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.15s ease;
}

.block-remove-handle:hover {
  background: color-mix(in srgb, var(--danger) 35%, var(--card));
  transform: scale(1.12);
}

.block-remove-handle:active {
  transform: scale(0.9);
}

.block-controls-docked {
  flex-direction: row;
  gap: 0.2rem;
  align-items: center;
  top: 0.2rem;
  bottom: auto;
}

.block-controls-docked .block-btn-bottom {
  margin-top: 0;
}

.block-controls-docked .block-btn {
  padding: 0.15rem 0.4rem;
}

/* --- Tab grid --- */

.line {
  font: 16px/1.5 var(--mono);
  white-space: pre;
  display: flex;
  align-items: baseline;
  position: relative;
}

.label {
  width: 2ch;
  min-width: 2ch;
  color: var(--mint);
  display: inline-flex;
  justify-content: flex-start;
  user-select: none;
  -webkit-user-select: none;
  cursor: default;
}

.chars {
  display: inline-flex;
}

.ch {
  display: inline-block;
  width: 1ch;
  min-width: 1ch;
  text-align: center;
  user-select: none;
  -webkit-user-select: none;
  cursor: text;
  border-radius: 4px;
}

/* --- Selection & cursor --- */

.ch.sel {
  background: var(--sel-bg);
  border-radius: 0;
}

.ch.sel-corner-tl {
  border-top-left-radius: 4px;
}

.ch.sel-corner-tr {
  border-top-right-radius: 4px;
}

.ch.sel-corner-bl {
  border-bottom-left-radius: 4px;
}

.ch.sel-corner-br {
  border-bottom-right-radius: 4px;
}

.ch.cursor {
  background: var(--cursor-bg);
  box-shadow: inset 0 0 0 1px var(--cursor-ring);
}

.ch.sel.cursor {
  background: var(--sel-bg-cursor);
}

/* --- Hidden keyboard input (iPad on-screen keyboard hook) --- */

#kbd {
  position: fixed;
  top: 50%;
  left: 50%;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
  transform: translateZ(0);
}

/* --- Note tooltip --- */

#note-tooltip {
  position: fixed;
  background: var(--card);
  color: var(--mint);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.4rem 0.6rem;
  font: 700 13px/1 var(--mono);
  pointer-events: none;
  z-index: 1000;
  display: none;
  box-shadow: var(--shadow);
}

#note-tooltip.visible {
  display: block;
}

/* --- Docked text & chords --- */

.docked-text-display {
  font: 16px/1.5 var(--mono);
  color: var(--fg);
  background: transparent;
  width: 100%;
  min-width: calc((var(--line-length, 80) + 2) * 1ch);
  padding: 0;
  min-height: 1.5em;
  white-space: pre;
  cursor: text;
  box-sizing: border-box;
  display: none;
}

.block.docked-text .docked-text-display {
  display: block;
}

.block.docked-text .text-content {
  display: none;
}

.block.docked-text.editing .docked-text-display {
  display: none;
}

.block.docked-text.editing .text-content {
  display: block;
}

.docked-text-display .chord {
  color: var(--accent);
  font-weight: bold;
  cursor: pointer;
  border-radius: 4px;
}

.docked-text-display .chord:hover {
  background: var(--sel-bg);
}

/* --- Chord popup --- */

#chord-popup {
  position: fixed;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  box-shadow: var(--shadow);
  z-index: 1000;
  display: none;
  min-width: 150px;
  text-align: center;
}

#chord-popup.visible {
  display: block;
  animation: chord-pop 0.18s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes chord-pop {
  from {
    transform: scale(0.92);
    opacity: 0;
  }

  to {
    transform: scale(1);
    opacity: 1;
  }
}

.chord-popup-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.chord-popup-header h4 {
  margin: 0;
  color: var(--accent);
  font-size: 16px;
  flex-grow: 1;
}

.chord-arrow {
  cursor: pointer;
  padding: 0 6px;
  color: var(--muted);
  font-weight: bold;
  user-select: none;
  font-size: 18px;
  line-height: 1;
  border-radius: 6px;
  transition: transform 0.12s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.chord-arrow:hover {
  color: var(--fg);
  transform: scale(1.2);
}

.chord-position-indicator {
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 4px;
}

.chord-insert-btn {
  margin-top: 8px;
  width: 100%;
  --jelly-button-min-width: 0;
}

.chord-not-found {
  font-size: 13px;
  color: var(--muted);
  padding: 0.5rem 0;
}

/* --- Live listening popover --- */

#listen-popover {
  display: none;
  position: fixed;
  z-index: 1001;
  width: min(340px, calc(100vw - 20px));
  max-height: calc(100vh - 20px);
  overflow: auto;
  box-sizing: border-box;
  padding: 0.85rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: color-mix(in srgb, var(--card) 96%, transparent);
  color: var(--fg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  scrollbar-width: none;
  -ms-overflow-style: none;
}

#listen-popover::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

#listen-popover.visible {
  display: block;
}

.listening-active .toolbar,
.listening-active #editor {
  opacity: 0.72;
}

.listen-header,
.listen-actions,
.listen-result-nav,
.listen-field,
.listen-pending {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.listen-header {
  justify-content: space-between;
  margin-bottom: 0.7rem;
}

.listen-header > div {
  display: flex;
  flex-direction: column;
}

.listen-header strong {
  font-size: 1.05rem;
}

.listen-header span,
.listen-field span,
.listen-confidence,
.listen-help {
  color: var(--muted);
  font-size: 0.75rem;
}

#listen-popover select,
#listen-popover input[type="range"] {
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.32rem 0.45rem;
  min-width: 0;
}

.listen-field {
  justify-content: space-between;
  margin: 0.45rem 0;
}

.listen-field select,
.listen-field input {
  width: 68%;
}

.listen-meter {
  height: 6px;
  margin: 0.65rem 0 0.35rem;
  overflow: hidden;
  border-radius: 999px;
  background: var(--neutral);
}

.listen-meter span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--mint), var(--amber));
  transition: width 80ms linear;
}

.listen-status {
  min-height: 1.2em;
  color: var(--muted);
  font-size: 0.78rem;
}

.listen-result {
  margin: 0.55rem 0;
  padding: 0.65rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg);
}

.listen-result-nav {
  justify-content: space-between;
}

.listen-result-nav button,
.listen-pending button {
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--card);
  color: var(--fg);
  cursor: pointer;
  min-width: 2rem;
  min-height: 1.8rem;
}

#listen-confidence {
  display: block;
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.72rem;
}

#listen-tab-preview {
  margin: 0.55rem auto;
  width: fit-content;
  min-width: 6ch;
  font: 14px/1.25 var(--mono);
  color: var(--fg);
}

.listen-candidate-nav span {
  flex: 1;
  overflow: hidden;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.76rem;
}

.listen-pending {
  justify-content: space-between;
  margin-top: 0.55rem;
  color: var(--amber);
  font-size: 0.75rem;
}

.listen-help {
  margin: 0.35rem 0 0.65rem;
  text-align: center;
}

.listen-actions {
  justify-content: flex-end;
  /* Jelly buttons paint oversized animation canvases. Keep that invisible
     bleed from making the popover itself appear scrollable. */
  overflow: clip;
}

@media (max-width: 600px) {
  #listen-popover {
    position: fixed;
    top: auto !important;
    right: 10px;
    bottom: max(10px, env(safe-area-inset-bottom));
    left: 10px !important;
    width: auto;
  }
}

/* --- Dialog content --- */

jelly-dialog h3 {
  margin: 0 0 0.9rem;
  font-size: 17px;
}

/* Jelly's canvas-painted controls (buttons, sliders, ...) intentionally
   paint a much larger canvas than their visible box, so the "wobble"
   press/release animation can overshoot without clipping. That invisible
   bleed still counts toward this wrapper's scrollable-overflow area, so
   without clipping it here every dialog gets a few pixels of pointless
   scroll. `overflow: clip` drops the invisible bleed without affecting
   this wrapper's own (visible-content-driven) size. */
.dialog-body {
  overflow: clip;
}

.dialog-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
  margin-top: 0.9rem;
  flex-wrap: wrap;
}

.confirm-message {
  margin: 0.25rem 0 0.5rem;
  font-size: 15px;
}

.settings-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  font-size: 14px;
}

.settings-controls {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-width: 0;
}

.settings-len-value {
  min-width: 2.5rem;
  text-align: center;
  font-weight: 600;
  font-family: var(--mono);
}

jelly-divider {
  margin: 0.75rem 0;
}

.dbx-hint {
  font-size: 13px;
  color: var(--muted);
  margin: 0 0 0.75rem;
}

.dbx-folder-text {
  font-size: 13px;
  max-width: 150px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.dbx-current-file {
  font-size: 12px;
  color: var(--muted);
  max-width: 180px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --- Text dialog --- */

.text-dialog {
  --jelly-dialog-width: min(1100px, calc(100vw - 2rem));
}

.text-modal-area {
  width: 100%;
  height: min(55vh, 30rem);
  font: 14px/1.4 var(--mono);
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.75rem;
  box-sizing: border-box;
  resize: none;
  outline: none;
}

.text-modal-area:focus {
  border-color: var(--accent);
}

.text-modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.9rem;
}

.text-modal-left,
.text-modal-right {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* --- Legend dialog --- */

.legend-sub {
  font-size: 13px;
  font-weight: 400;
  color: var(--muted);
}

.legend-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.legend-btn {
  --jelly-button-min-width: 0;
  --jelly-button-padding-inline: 14px;
  --jelly-button-font-size: 13px;
  width: 100%;
}

.legend-btn::part(button) {
  width: 100%;
  justify-content: flex-start;
  font-family: var(--mono);
}

.legend-info {
  background: var(--bg);
  border: 1px dashed var(--border);
  padding: 0.75rem;
  border-radius: 12px;
  font-size: 13px;
  color: var(--muted);
}

.legend-info p {
  margin: 0;
  line-height: 2;
}

.legend-code {
  font-family: var(--mono);
  color: var(--fg);
}

/* --- Dropbox dialogs --- */

.dbx-dialog {
  --jelly-dialog-width: min(520px, calc(100vw - 2rem));
}

jelly-breadcrumbs {
  display: block;
  margin-bottom: 0.5rem;
  overflow-x: auto;
}

.dbx-file-list {
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  max-height: min(300px, 45vh);
  min-height: 100px;
  background: var(--bg);
}

.dbx-file-item {
  width: 100%;
  padding: 0.55rem 0.75rem;
  font: 14px/1.4 var(--mono);
  cursor: pointer;
  border: none;
  border-bottom: 1px solid var(--border);
  background: transparent;
  color: var(--fg);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-align: left;
  transition: background 0.12s ease;
}

.dbx-file-item:last-child {
  border-bottom: none;
}

.dbx-file-item:hover {
  background: var(--sel-bg);
}

.dbx-file-item:active {
  background: var(--sel-bg-cursor);
}

.dbx-file-item .dbx-icon {
  color: var(--muted);
  font-size: 14px;
  min-width: 1.5em;
}

.dbx-file-item.folder .dbx-icon {
  color: var(--accent);
}

.dbx-parent-item {
  color: var(--accent);
  font-weight: 600;
}

.dbx-loading {
  text-align: center;
  padding: 1rem;
  color: var(--muted);
  font-size: 13px;
}

jelly-alert {
  margin: 0.5rem 0;
}

/* --- Perform mode (always a dark stage) --- */

.perform-overlay {
  position: fixed;
  inset: 0;
  background: #000;
  z-index: 300;
  display: flex;
  flex-direction: column;
}

.perform-scroller {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  scroll-behavior: auto;
  -webkit-overflow-scrolling: touch;
}

.perform-content {
  font-family: var(--mono);
  line-height: 1.4;
  padding: 1rem;
  padding-bottom: 0;
}

.perform-tab-block {
  margin: 0;
  padding: 0.25em 0;
  font: inherit;
  white-space: pre;
  color: #e8eaf0;
}

.perform-label {
  color: oklch(0.72 0.15 151.7);
}

.perform-text-block {
  color: oklch(0.7112 0.1559 250.96);
  font-weight: 600;
  font-family: inherit;
  font-size: inherit;
  padding: 0.75em 0 0.15em;
  white-space: pre-wrap;
}

.perform-text-block.perform-docked {
  padding-bottom: 0;
  margin-bottom: -0.15em;
}

.perform-end-spacer {
  height: 80vh;
}

.perform-controls {
  position: relative;
  overflow: visible;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 1rem;
  background: rgba(18, 21, 27, 0.92);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  flex-shrink: 0;
}

.perform-controls .perform-exit-btn {
  margin-left: auto;
}

.perform-speed-label {
  font: 600 13px/1 var(--mono);
  color: #9aa1ac;
  user-select: none;
}

.perform-speed-display {
  color: #e8eaf0;
  min-width: 2.5em;
  display: inline-block;
  text-align: center;
}

.perform-wait-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 301;
  pointer-events: none;
}

.perform-wait-fill {
  height: 100%;
  width: 0%;
  background: oklch(0.72 0.15 151.7);
}