:root {
  --bg0: #0c0d10;
  --bg1: #15171c;
  --steel: #2a2e38;
  --steel-hi: #3d4454;
  --amber: #e8a04a;
  --amber-dim: #a66f2a;
  --mint: #7ec8a3;
  --rose: #d47878;
  --ice: #8eb4d4;
  --violet: #b49ad4;
  --text: #e8e6e1;
  --muted: #8a8790;
  --pad: #1a1c22;
  --glow: rgba(232, 160, 74, 0.35);
  --font-display: "Bebas Neue", Impact, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --gap: 0.65rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg0);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 14px;
  -webkit-tap-highlight-color: transparent;
}

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  z-index: 0;
}

body > * {
  position: relative;
  z-index: 1;
}

.top {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.5rem 0.75rem;
  border-bottom: 1px solid var(--steel);
  background: linear-gradient(180deg, #12141a 0%, var(--bg0) 100%);
}

.brand h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 6vw, 3.4rem);
  letter-spacing: 0.04em;
  line-height: 0.9;
  color: var(--amber);
  text-shadow: 0 0 40px var(--glow);
}

.tag {
  margin: 0.25rem 0 0;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.65rem;
}

.top-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.5rem;
}

.meta {
  color: var(--muted);
  font-size: 0.72rem;
}

.midi-btn {
  min-width: 4.5rem;
  cursor: pointer;
}

.midi-btn.midi-on {
  border-color: var(--mint);
  color: var(--mint);
}

.midi-btn.midi-off {
  border-color: var(--rose);
  color: var(--rose);
}

.midi-btn.midi-wait {
  border-color: var(--amber, #e6b84d);
  color: var(--amber, #e6b84d);
}


.export-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 0.35rem);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 10rem;
  padding: 0.4rem;
  background: var(--bg1);
  border: 1px solid var(--steel-hi);
  z-index: 20;
}

.mobile-tabs {
  display: none;
  gap: 0;
  border-bottom: 1px solid var(--steel);
}

.tab-btn {
  flex: 1;
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.08em;
  padding: 0.65rem;
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.tab-btn.active {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.workspace {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  padding: 1.1rem 1rem 2.5rem;
  max-width: 1280px;
  margin: 0 auto;
  align-items: start;
}

.column {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  min-width: 0;
}

.col-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1rem;
}

.col-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.75rem;
  letter-spacing: 0.06em;
  color: var(--text);
}

.col-sub {
  margin: 0;
  color: var(--muted);
  font-size: 0.68rem;
  flex: 1;
}

.col-actions {
  display: flex;
  gap: 0.35rem;
}

.stage-panels {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
}

.column.has-kit .dropzone.cropping {
  min-height: 14rem;
  max-height: none;
}

.crop-panel {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  width: 100%;
  min-width: 0;
}

.crop-title {
  margin: 0;
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.crop-file {
  color: var(--text);
}

.crop-wave {
  width: 100%;
  min-height: 88px;
  border: 1px solid var(--steel);
  background: #0f1014;
  border-radius: 2px;
  overflow: hidden;
}

.crop-meta {
  font-size: 0.7rem;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.sampler-col .crop-meta {
  color: var(--violet);
}

.crop-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: flex-end;
}

.crop-actions .btn {
  min-width: 5.5rem;
}


.panel {
  width: 100%;
  border: 1px solid var(--steel);
  background:
    radial-gradient(ellipse at 50% 0%, rgba(232, 160, 74, 0.07), transparent 55%),
    var(--bg1);
}

.dropzone {
  display: grid;
  place-items: center;
  cursor: pointer;
  border-style: dashed;
  /* Compact drop header — not a giant square */
  aspect-ratio: auto;
  min-height: 6.5rem;
  max-height: 8.5rem;
  padding: 0.75rem 1rem;
  transition: border-color 0.2s, box-shadow 0.2s, max-height 0.2s;
  touch-action: manipulation;
}

.dropzone.cropping {
  cursor: default;
  min-height: 14rem;
  max-height: none;
  height: auto;
  place-items: stretch;
  padding: 0.75rem;
}

.dropzone:hover,
.dropzone:focus-visible,
.dropzone.drag {
  border-color: var(--amber);
  box-shadow: inset 0 0 0 1px var(--amber-dim), 0 0 40px rgba(232, 160, 74, 0.08);
  outline: none;
}

.sampler-col .dropzone.drag,
.sampler-col .dropzone:hover {
  border-color: var(--violet);
  box-shadow: inset 0 0 0 1px rgba(180, 154, 212, 0.5);
}

.drop-inner {
  text-align: center;
  padding: 0.75rem;
}

.drop-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  letter-spacing: 0.06em;
}

.drop-sub {
  margin: 0.4rem 0 0;
  color: var(--muted);
  font-size: 0.68rem;
}

.drop-pipe {
  margin: 0.55rem 0 0;
  color: var(--amber-dim);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.sampler-col .drop-pipe {
  color: var(--violet);
}

.progress {
  width: min(360px, 90%);
  text-align: center;
  padding: 1rem;
}

.progress.hidden,
.hidden {
  display: none !important;
}

.progress-bar {
  height: 4px;
  background: var(--steel);
  overflow: hidden;
}

.progress-bar > div {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--amber-dim), var(--amber));
  transition: width 0.2s ease;
}

.sampler-col .progress-bar > div {
  background: linear-gradient(90deg, #7a6299, var(--violet));
}

.progress p {
  margin: 0.65rem 0 0;
  color: var(--muted);
  font-size: 0.75rem;
}

.deck-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.4rem;
}

.bank-ctrl {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.bank-btn {
  min-width: 2rem;
  padding: 0.35rem 0.45rem;
}

.bank-label {
  font-family: var(--font-display);
  font-size: 1.3rem;
  letter-spacing: 0.08em;
  min-width: 5rem;
  text-align: center;
}

.hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.62rem;
  line-height: 1.4;
}

kbd {
  display: inline-block;
  padding: 0.05rem 0.28rem;
  border: 1px solid var(--steel-hi);
  background: var(--pad);
  font-size: 0.6rem;
}

.pad-grid {
  display: grid;
  gap: var(--gap);
  padding: var(--gap);
  border-style: solid;
  touch-action: pan-y;
  aspect-ratio: auto;
}

.drum-grid {
  grid-template-columns: repeat(3, 1fr);
  /* Keep drums roughly square overall without forcing dropzones */
  aspect-ratio: 1;
  max-height: min(520px, 70vw);
}

.sampler-grid {
  /* 4×4: QWER / ASDF / ZXCV / TYUI */
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: minmax(7rem, auto);
  aspect-ratio: auto;
  max-height: none;
}

.pad {
  position: relative;
  background: linear-gradient(160deg, #22252e 0%, var(--pad) 55%, #12131a 100%);
  border: 1px solid var(--steel);
  border-radius: 4px;
  padding: 0.45rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 5.25rem;
  min-width: 0;
  overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transition: transform 0.06s, box-shadow 0.06s, border-color 0.1s, opacity 0.15s;
  user-select: none;
  cursor: grab;
}

.sampler-grid .pad {
  min-height: 7rem;
  padding: 0.55rem;
  gap: 0.25rem;
}

.pad:active {
  cursor: grabbing;
}

.pad.empty {
  opacity: 0.35;
  cursor: default;
}

.pad.flash {
  transform: scale(0.97);
  border-color: var(--amber);
  box-shadow: 0 0 20px var(--glow), inset 0 0 16px rgba(232, 160, 74, 0.15);
}

.sampler-col .pad.flash {
  border-color: var(--violet);
  box-shadow: 0 0 20px rgba(180, 154, 212, 0.35);
}

.pad.drag-src {
  opacity: 0.45;
}

.pad.drag-over {
  border-color: var(--amber);
  box-shadow: inset 0 0 0 1px var(--amber);
}

.pad-key {
  position: absolute;
  top: 0.25rem;
  right: 0.3rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--muted);
  opacity: 0.7;
  pointer-events: none;
}

.sampler-grid .pad-key {
  font-size: 1.15rem;
}

.pad-kind {
  font-size: 0.55rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  width: fit-content;
  max-width: calc(100% - 1.4rem);
  padding: 0.1rem 0.3rem;
  border-radius: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sampler-grid .pad-kind {
  font-size: 0.58rem;
}

.pad.kick .pad-kind { background: rgba(126, 200, 163, 0.2); color: var(--mint); }
.pad.snare .pad-kind { background: rgba(232, 160, 74, 0.2); color: var(--amber); }
.pad.hat .pad-kind { background: rgba(142, 180, 212, 0.2); color: var(--ice); }
.pad.unknown .pad-kind { background: rgba(212, 120, 120, 0.2); color: var(--rose); }
.pad.chop .pad-kind { background: rgba(180, 154, 212, 0.22); color: var(--violet); }

.pad-name {
  width: 100%;
  margin-top: 0.25rem;
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid transparent;
  border-radius: 2px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  padding: 0.22rem 0.28rem;
  cursor: text;
}

.sampler-grid .pad-name {
  font-size: 0.72rem;
  padding: 0.28rem 0.32rem;
  min-height: 1.6rem;
}

.pad-name:hover {
  border-color: var(--steel-hi);
}

.pad-name:focus {
  outline: none;
  border-color: var(--amber);
  background: rgba(0, 0, 0, 0.35);
}

.pad-actions {
  display: flex;
  gap: 0.15rem;
  margin-top: auto;
  padding-top: 0.2rem;
}

.pad-fx {
  display: none;
  position: absolute;
  inset: 0;
  z-index: 5;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.45rem;
  background: rgba(12, 13, 16, 0.96);
  border-radius: 4px;
  overflow: auto;
}

.pad.fx-open {
  z-index: 6;
  overflow: visible;
}

.pad.fx-open .pad-fx {
  display: flex;
}

.fx-row {
  display: grid;
  grid-template-columns: 2.4rem 1fr 2.4rem;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.58rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.fx-row input[type="range"] {
  width: 100%;
  accent-color: var(--amber);
  cursor: pointer;
}

.sampler-col .fx-row input[type="range"] {
  accent-color: var(--violet);
}

.fx-val {
  font-variant-numeric: tabular-nums;
  color: var(--text);
  text-align: right;
  font-size: 0.58rem;
}

.fx-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  margin-top: 0.15rem;
}

.fx-btns .btn.tiny {
  flex: 1 1 auto;
  min-width: 3.4rem;
}

.btn {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid var(--steel-hi);
  background: var(--steel);
  color: var(--text);
  padding: 0.35rem 0.55rem;
  cursor: pointer;
  border-radius: 2px;
}

.btn:hover:not(:disabled) {
  border-color: var(--amber);
  color: var(--amber);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn.primary {
  background: var(--amber);
  border-color: var(--amber);
  color: #1a1208;
  font-weight: 600;
}

.btn.primary:hover:not(:disabled) {
  color: #1a1208;
  filter: brightness(1.05);
}

.btn.ghost {
  background: transparent;
}

.btn.tiny {
  padding: 0.2rem 0.28rem;
  font-size: 0.58rem;
  flex: 1;
  min-width: 0;
  min-height: 1.55rem;
}

.sampler-grid .btn.tiny {
  padding: 0.28rem 0.3rem;
  font-size: 0.62rem;
  min-height: 1.75rem;
}

.btn.danger {
  color: var(--rose);
  border-color: rgba(212, 120, 120, 0.45);
}

.btn.danger:hover:not(:disabled) {
  border-color: var(--rose);
  color: var(--rose);
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
  justify-content: center;
}

.pill {
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.12rem 0.3rem;
  border: 1px solid var(--steel);
}

.pill.kick { color: var(--mint); }
.pill.snare { color: var(--amber); }
.pill.hat { color: var(--ice); }
.pill.unknown { color: var(--rose); }
.pill.chop { color: var(--violet); }

footer {
  text-align: center;
  padding: 1.25rem 1rem 2.25rem;
  color: var(--muted);
  font-size: 0.68rem;
}

footer a {
  color: var(--amber-dim);
}

/* —— Looper screen (separate from pads workspace) —— */
body[data-screen="looper"] #workspace,
body[data-screen="looper"] #mobile-tabs,
body[data-screen="looper"] > footer {
  display: none;
}

body[data-screen="pads"] #looper-screen,
body:not([data-screen="looper"]) #looper-screen {
  display: none;
}

body[data-screen="looper"] #looper-screen {
  display: flex;
}

body[data-screen="looper"] #btn-looper {
  border-color: var(--amber);
  color: var(--amber);
}

.looper-screen {
  flex-direction: column;
  gap: 0.85rem;
  max-width: 960px;
  margin: 0 auto;
  padding: 0.75rem 1rem 2rem;
  min-height: calc(100vh - 5rem);
}

.looper-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1rem;
}

.looper-head h2 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  letter-spacing: 0.06em;
  margin: 0;
  font-weight: 400;
}

.looper-hint {
  margin: 0;
}

.looper-transport {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 0.75rem;
  background: var(--bg1);
  border: 1px solid var(--steel);
}

.loop-field {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.loop-field input,
.loop-field select {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text);
  background: var(--pad);
  border: 1px solid var(--steel);
  padding: 0.3rem 0.4rem;
  min-width: 3.5rem;
}

.loop-field input[type="number"] {
  width: 4rem;
}

.loop-rec-btn.recording {
  border-color: var(--rose);
  color: var(--rose);
  animation: loop-pulse 1s ease-in-out infinite;
}

.loop-rec-btn.waiting {
  border-color: var(--amber);
  color: var(--amber);
}

.loop-track {
  cursor: pointer;
}

@keyframes loop-pulse {
  50% { opacity: 0.55; }
}

.loop-status {
  margin-left: auto;
}

.looper-playhead-wrap {
  position: relative;
  height: 3px;
  background: var(--steel);
  border-radius: 1px;
  overflow: hidden;
}

.looper-playhead {
  position: absolute;
  top: 0;
  left: 0;
  width: 2px;
  height: 100%;
  background: var(--amber);
  transform: translateX(0);
  will-change: transform;
}

.loop-crop {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 0.55rem 0.65rem;
  background: var(--bg1);
  border: 1px solid var(--steel);
}

.loop-crop.hidden {
  display: none;
}

.loop-crop-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
}

.loop-crop-label {
  font-family: var(--font-display);
  letter-spacing: 0.06em;
  font-size: 1.1rem;
  color: var(--amber);
  margin-right: 0.25rem;
}

.loop-crop-wave-wrap {
  position: relative;
  height: 56px;
  touch-action: none;
  user-select: none;
}

.loop-crop-wave {
  display: block;
  width: 100%;
  height: 56px;
  border-radius: 2px;
}

.loop-crop-sel {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0%;
  right: 0%;
  background: rgba(232, 160, 74, 0.12);
  border-left: 2px solid var(--amber);
  border-right: 2px solid var(--amber);
  pointer-events: none;
}

.loop-crop-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 14px;
  margin-left: -7px;
  pointer-events: auto;
  cursor: ew-resize;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(232, 160, 74, 0.35) 40%,
    rgba(232, 160, 74, 0.35) 60%,
    transparent 100%
  );
}

.loop-crop-handle-start {
  left: 0;
}

.loop-crop-handle-end {
  left: 100%;
}

.loop-crop-ph {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  margin-left: -1px;
  background: var(--mint);
  pointer-events: none;
  left: 0%;
}

.loop-crop-shift-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
}

.loop-crop-shift-row input[type="range"] {
  width: 8rem;
  accent-color: var(--amber);
}

.loop-track.selected {
  border-color: var(--ice);
  box-shadow: inset 3px 0 0 var(--ice);
}

.loop-track .loop-wave-wrap {
  position: relative;
}

.loop-track-ph {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  margin-left: -1px;
  background: var(--mint);
  pointer-events: none;
  left: 0%;
  opacity: 0.85;
}

.looper-tracks {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.loop-track {
  display: grid;
  grid-template-columns: 2.5rem 1fr auto;
  gap: 0.55rem;
  align-items: center;
  padding: 0.55rem 0.65rem;
  background: var(--bg1);
  border: 1px solid var(--steel);
}

.loop-track.armed {
  border-color: var(--amber-dim);
  box-shadow: inset 3px 0 0 var(--amber);
}

.loop-track.recording {
  border-color: var(--rose);
}

.loop-track-num {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-align: center;
}

.loop-track.armed .loop-track-num {
  color: var(--amber);
}

.loop-wave-wrap {
  position: relative;
  min-width: 0;
}

.loop-wave {
  display: block;
  width: 100%;
  height: 48px;
  border-radius: 2px;
}

.loop-meter {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0%;
  background: var(--mint);
  pointer-events: none;
}

.loop-track-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: flex-end;
}

.loop-track-actions .btn.on {
  border-color: var(--mint);
  color: var(--mint);
}

.loop-track-actions .btn.arm-on {
  border-color: var(--amber);
  color: var(--amber);
}

@media (max-width: 640px) {
  .loop-track {
    grid-template-columns: 2rem 1fr;
  }

  .loop-track-actions {
    grid-column: 1 / -1;
    justify-content: flex-start;
  }
}

@media (max-width: 1099px) {
  .mobile-tabs {
    display: flex;
  }

  .workspace {
    grid-template-columns: 1fr;
    padding-top: 0.75rem;
  }

  .workspace[data-tab="sampler"] .drums-col,
  .workspace[data-tab="drums"] .sampler-col {
    display: none;
  }

  .drum-grid {
    max-height: none;
  }

  .sampler-grid {
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: minmax(6.5rem, auto);
  }
}

@media (max-width: 560px) {
  .top {
    flex-direction: column;
    align-items: flex-start;
  }

  .col-head {
    flex-direction: column;
    align-items: flex-start;
  }
}