/* ===================================================================
   Stagecraft — Practice Tool
   A plain, naturally-scrolling document: no fixed/sticky chrome, no
   100vh shell, no viewport-fit cover. Every tap target is in normal
   document flow — the one layout every browser, iOS included, gets right.
   =================================================================== */

:root {
  --bg: #0b0b0d;
  --panel: #141417;
  --panel-2: #17171b;
  --inset: #1c1c21;
  --raised: #26262c;
  --raised-2: #303037;
  --border: #2a2a31;
  --border-soft: #1f1f25;
  --text: #f4f4f5;
  --text-2: #a4a4ad;
  --text-3: #6f6f78;
  --amber: #fbbf24;
  --amber-deep: #f59e0b;
  --drums: #fbbf24;
  --bass: #fb923c;
  --vocals: #e879f9;
  --other: #60a5fa;
  --success: #34d399;
  --danger: #fb7185;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --r-lg: 16px;
  --r-md: 11px;
  --r-sm: 8px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  -webkit-text-size-adjust: 100%;
}
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  min-height: 100vh;
}
::selection {
  background: rgba(251, 191, 36, 0.3);
}
.tnum {
  font-variant-numeric: tabular-nums;
  font-family: var(--mono);
}

button,
input {
  font-family: inherit;
}
button {
  cursor: pointer;
  color: inherit;
  transition: background 0.12s ease, border-color 0.12s ease,
    color 0.12s ease, transform 0.07s ease, opacity 0.15s ease;
}
button:active {
  transform: scale(0.97);
}
button:disabled {
  cursor: default;
}

/* layout shell — a centered, naturally-scrolling column */
.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 15px 60px;
}

/* ---------------------------------------------------------- header */
.hdr {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 18px 4px 16px;
}
.hdr-mark {
  position: relative;
  width: 11px;
  height: 11px;
  flex-shrink: 0;
}
.hdr-dot {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 14px rgba(251, 191, 36, 0.55);
}
.hdr-dot::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--amber);
  animation: ping 2.4s cubic-bezier(0, 0, 0.2, 1) infinite;
}
@keyframes ping {
  0% {
    transform: scale(1);
    opacity: 0.5;
  }
  75%,
  100% {
    transform: scale(2.6);
    opacity: 0;
  }
}
.hdr-brand {
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: -0.015em;
}
.hdr-sub {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-3);
}
.hdr-spacer {
  flex: 1;
}
.hdr-keys {
  display: none;
  font-size: 11px;
  color: var(--text-3);
  gap: 12px;
}
.hdr-keys kbd {
  font-family: var(--mono);
  font-size: 10px;
  background: var(--raised);
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 5px;
  padding: 1px 5px;
  margin-right: 4px;
  color: var(--text-2);
}
.hdr-conn {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-3);
}
.hdr-conn::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
}
.hdr-conn[data-state="on"] {
  color: var(--success);
}

/* ---------------------------------------------------------- panels */
.panel {
  background: var(--panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  padding: 16px;
  margin-bottom: 13px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.022);
}
.player-panel {
  padding: 17px 16px 15px;
}
.panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 13px;
}
.panel-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-2);
}
.panel-aux {
  font-size: 10.5px;
  color: var(--text-3);
  text-transform: lowercase;
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---------------------------------------------------------- now playing */
.np {
  min-height: 56px;
}
.np-empty {
  display: flex;
  align-items: center;
  gap: 11px;
  color: var(--text-3);
  font-size: 14px;
  padding: 6px 2px;
}
.np-empty svg {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  color: var(--text-3);
}
.np-eyebrow {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-3);
}
.np-title {
  font-size: 23px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-top: 4px;
}
.np-artist {
  font-size: 13.5px;
  color: var(--text-2);
  margin-top: 4px;
}
.np-artist .feat {
  color: var(--text-3);
}
.np-row {
  display: flex;
  align-items: center;
  gap: 9px;
  flex-wrap: wrap;
  margin-top: 12px;
}
.np-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-3);
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  padding: 5px 9px;
}
.np-badge svg {
  width: 12px;
  height: 12px;
}
.np-progress {
  margin-top: 11px;
  height: 5px;
  border-radius: 999px;
  background: var(--inset);
  overflow: hidden;
}
.np-progress > i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--amber-deep), var(--amber));
  border-radius: 999px;
  transition: width 0.3s ease;
}
.np-error {
  margin-top: 10px;
  font-size: 12.5px;
  color: var(--danger);
  background: rgba(251, 113, 133, 0.08);
  border: 1px solid rgba(251, 113, 133, 0.25);
  border-radius: var(--r-sm);
  padding: 8px 10px;
}

/* ---------------------------------------------------------- waveform */
.wave-wrap {
  position: relative;
  margin: 15px 0 14px;
}
.wave {
  display: block;
  width: 100%;
  height: 116px;
  border-radius: var(--r-md);
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  cursor: crosshair;
  touch-action: none;
}
.wave-empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-3);
  pointer-events: none;
}
.wave-empty[hidden] {
  display: none;
}
.scrub {
  position: absolute;
  top: -32px;
  transform: translateX(-50%);
  background: var(--raised-2);
  color: var(--text);
  font-family: var(--mono);
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  pointer-events: none;
  white-space: nowrap;
}

/* ---------------------------------------------------------- transport */
.transport {
  display: flex;
  flex-direction: column;
  gap: 13px;
}
.t-times {
  display: flex;
  align-items: baseline;
  gap: 9px;
}
.t-cur {
  font-size: 33px;
  font-weight: 300;
  letter-spacing: -0.03em;
  line-height: 1;
}
.t-dur {
  font-size: 14px;
  color: var(--text-3);
}
.t-dur::before {
  content: "/ ";
}
.t-rem {
  margin-left: auto;
  font-size: 12px;
  color: var(--text-2);
}
.t-main {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}
.t-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: none;
  background: var(--raised);
  color: var(--text);
}
.t-btn:not(:disabled):active {
  background: var(--raised-2);
}
.t-btn svg {
  width: 21px;
  height: 21px;
}
.t-play {
  width: 64px;
  height: 64px;
  background: var(--amber);
  color: #1c1404;
  box-shadow: 0 4px 18px rgba(251, 191, 36, 0.28);
}
.t-play:not(:disabled):active {
  background: var(--amber-deep);
}
.t-play svg {
  width: 27px;
  height: 27px;
}
.t-btn:disabled {
  opacity: 0.38;
  box-shadow: none;
}
.t-vol {
  display: flex;
  align-items: center;
  gap: 11px;
}
.t-vol-ico {
  display: flex;
  color: var(--text-3);
  flex-shrink: 0;
}
.t-vol-ico svg {
  width: 18px;
  height: 18px;
}
.t-vol-val {
  font-size: 11px;
  color: var(--text-3);
  width: 26px;
  text-align: right;
}
.t-loop {
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
  padding-top: 12px;
  border-top: 1px solid var(--border-soft);
}
.t-loop-ico {
  display: flex;
  color: var(--text-3);
}
.t-loop-ico svg {
  width: 16px;
  height: 16px;
}
.t-loop-label {
  font-size: 11px;
  color: var(--text-3);
  margin-left: auto;
}
.t-loop-label[data-active="1"] {
  color: var(--amber);
}

/* ---------------------------------------------------------- chips */
.chip {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-2);
  background: var(--inset);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-sm);
  padding: 8px 12px;
  min-height: 38px;
}
.chip:active {
  background: var(--raised);
}
.chip[data-active="1"],
.chip-amber[data-active="1"] {
  border-color: rgba(251, 191, 36, 0.55);
  color: var(--amber);
  background: rgba(251, 191, 36, 0.1);
}
.chip-lg {
  min-height: 44px;
  padding: 10px 18px;
}

/* ---------------------------------------------------------- stems */
.stems {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.stem {
  --c: var(--text-2);
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
  padding: 13px 13px 12px;
  transition: opacity 0.2s ease, border-color 0.15s ease,
    box-shadow 0.15s ease;
}
.stem[data-solo="1"] {
  border-color: color-mix(in oklab, var(--c) 55%, transparent);
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--c) 30%, transparent),
    0 0 22px -8px color-mix(in oklab, var(--c) 60%, transparent);
}
.stem[data-audible="0"] {
  opacity: 0.4;
}
.stem-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.stem-name {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 14.5px;
  font-weight: 650;
  letter-spacing: -0.01em;
}
.stem-swatch {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--c);
  box-shadow: 0 0 8px color-mix(in oklab, var(--c) 70%, transparent);
}
.stem-val {
  font-size: 12px;
  color: var(--text-3);
}
.stem-sub {
  font-size: 9.5px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-3);
  margin-top: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.stem-slider {
  margin: 11px 0 13px;
}
.stem-btns {
  display: flex;
  gap: 7px;
}
.stem-btns .chip {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 8px 4px;
}
.stem-btns .chip svg {
  width: 13px;
  height: 13px;
}
.stem .chip[data-on="mute"] {
  border-color: rgba(251, 113, 133, 0.5);
  color: var(--danger);
  background: rgba(251, 113, 133, 0.1);
}
.stem .chip[data-on="solo"] {
  border-color: color-mix(in oklab, var(--c) 60%, transparent);
  color: var(--c);
  background: color-mix(in oklab, var(--c) 12%, transparent);
}

/* ---------------------------------------------------------- presets */
.presets {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
}
.preset {
  text-align: left;
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
  padding: 12px 13px;
}
.preset:active {
  border-color: rgba(251, 191, 36, 0.5);
}
.preset[data-active="1"] {
  border-color: rgba(251, 191, 36, 0.55);
  background: rgba(251, 191, 36, 0.07);
}
.preset-name {
  font-size: 13px;
  font-weight: 650;
}
.preset[data-active="1"] .preset-name {
  color: var(--amber);
}
.preset-hint {
  font-size: 10.5px;
  color: var(--text-3);
  margin-top: 3px;
  line-height: 1.35;
}

/* --------------------------------------------------------- repertoire */
.library {
  margin-top: 26px;
  scroll-margin-top: 8px;
}
.lib-head {
  padding: 0 4px 14px;
  border-bottom: 1px solid var(--border-soft);
}
.lib-title-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 5px;
}
.lib-name {
  flex: 1;
  min-width: 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lib-edit {
  flex-shrink: 0;
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-2);
  background: var(--inset);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-sm);
  padding: 8px 14px;
  min-height: 36px;
}
.lib-edit:active {
  background: var(--raised);
}
.lib-meta {
  font-size: 12px;
  color: var(--text-3);
  margin-top: 5px;
}

/* setlist bar — a wrapping row of pills, in normal flow (no sticky chrome) */
.setbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 14px 2px 2px;
}
.sl-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 9px 15px;
  min-height: 40px;
}
.sl-chip:active {
  background: var(--raised);
}
.sl-chip[data-active="1"] {
  color: var(--amber);
  border-color: rgba(251, 191, 36, 0.55);
  background: rgba(251, 191, 36, 0.1);
}
.sl-chip-count {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-3);
}
.sl-chip[data-active="1"] .sl-chip-count {
  color: var(--amber-deep);
}
.sl-chip-new {
  color: var(--text-3);
  border-style: dashed;
}

/* sort bar — reorders the song list; reuses the small .chip pill */
.sortbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
  padding: 11px 2px 2px;
}
.sortbar-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-3);
  margin-right: 3px;
}
.sortbar .chip {
  min-height: 34px;
  padding: 7px 11px;
}

/* setlist editor — an in-flow panel that expands; nothing fixed/sticky */
.sl-editor {
  margin-top: 13px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 14px;
}
.sl-editor[hidden] {
  display: none;
}
.sl-editor-top {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  align-items: center;
}
.sl-name {
  flex: 1;
  min-width: 170px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  background: var(--inset);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 11px 13px;
  min-height: 44px;
}
.sl-name:focus {
  outline: none;
  border-color: rgba(251, 191, 36, 0.5);
}
.sl-actions {
  display: flex;
  gap: 7px;
}
.sl-hint {
  font-size: 12px;
  color: var(--text-3);
  margin: 12px 2px 10px;
}
.sl-hint[data-err="1"] {
  color: var(--danger);
}
.sl-pick {
  display: grid;
  gap: 7px;
}
.pick {
  display: flex;
  align-items: center;
  gap: 11px;
  text-align: left;
  background: var(--panel-2);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
  padding: 10px 12px;
}
.pick:active {
  background: var(--raised);
}
.pick[data-on="1"] {
  border-color: rgba(251, 191, 36, 0.45);
  background: rgba(251, 191, 36, 0.07);
}
.pick-box {
  width: 21px;
  height: 21px;
  flex-shrink: 0;
  border-radius: 6px;
  border: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: transparent;
}
.pick-box svg {
  width: 14px;
  height: 14px;
}
.pick[data-on="1"] .pick-box {
  background: var(--amber);
  border-color: var(--amber);
  color: #1c1404;
}
.pick-main {
  flex: 1;
  min-width: 0;
}
.pick-title {
  display: block;
  font-size: 14px;
  font-weight: 550;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pick-sub {
  display: block;
  font-size: 11px;
  color: var(--text-3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 1px;
}
.chip-danger {
  color: var(--danger);
  border-color: rgba(251, 113, 133, 0.32);
}
.chip-danger:active {
  background: rgba(251, 113, 133, 0.12);
}

/* song list */
.songs {
  list-style: none;
  margin-top: 2px;
}
.songs-empty {
  color: var(--text-3);
  font-size: 13px;
  padding: 26px 10px;
  text-align: center;
  line-height: 1.5;
}
.song {
  display: flex;
  align-items: center;
  gap: 13px;
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-soft);
  padding: 13px 8px 13px 6px;
  position: relative;
  overflow: hidden;
}
.song:active {
  background: var(--panel);
}
.song[data-active="1"] {
  background: var(--panel);
}
.song[data-active="1"]::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  bottom: 7px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--amber);
}
.song-idx {
  font-size: 11px;
  color: var(--text-3);
  width: 20px;
  text-align: right;
  flex-shrink: 0;
}
.song-main {
  flex: 1;
  min-width: 0;
}
.song-title {
  display: block;
  font-size: 14.5px;
  font-weight: 550;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.song[data-active="1"] .song-title {
  color: #fff;
}
.song-sub {
  display: block;
  font-size: 11.5px;
  color: var(--text-3);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 2px;
}
.song-status {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-3);
}
.song-status svg {
  width: 15px;
  height: 15px;
}
.song-status[data-state="cached"] {
  color: var(--success);
}
.song-status[data-state="processing"] {
  color: var(--amber);
}
.song-bar {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  background: var(--amber);
  transition: width 0.3s ease;
}
.spin {
  animation: spin 0.9s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ---------------------------------------------------------- footer */
.ftr {
  margin-top: 28px;
  padding: 14px 4px 0;
  border-top: 1px solid var(--border-soft);
  display: flex;
  justify-content: space-between;
  gap: 14px;
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-3);
}
.ftr span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---------------------------------------------------------- range inputs */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 30px;
  background: transparent;
  touch-action: none;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 5px;
  border-radius: 999px;
  background: var(--inset);
}
input[type="range"]::-moz-range-track {
  height: 5px;
  border-radius: 999px;
  background: var(--inset);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  margin-top: -8.5px;
  border-radius: 50%;
  background: var(--thumb, #f4f4f5);
  border: 3px solid var(--bg);
  box-shadow: 0 1px 5px rgba(0, 0, 0, 0.55);
}
input[type="range"]::-moz-range-thumb {
  width: 19px;
  height: 19px;
  border-radius: 50%;
  background: var(--thumb, #f4f4f5);
  border: 3px solid var(--bg);
}
input[type="range"]:active::-webkit-slider-thumb {
  transform: scale(1.12);
}

/* ---------------------------------------------------------- wider screens */
@media (min-width: 760px) {
  .wrap {
    padding: 0 22px 70px;
  }
  .stems {
    grid-template-columns: repeat(4, 1fr);
  }
  .presets {
    grid-template-columns: repeat(5, 1fr);
  }
  .wave {
    height: 140px;
  }
  .hdr-keys {
    display: flex;
  }
  .np-title {
    font-size: 25px;
  }
  /* two-column song list — halves the scroll on tablet/desktop */
  .songs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 26px;
  }
  .songs-empty {
    grid-column: 1 / -1;
  }
  .sl-pick {
    grid-template-columns: 1fr 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::after {
    animation: none !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}