:root {
  --bg-start: #000000;
  --bg-end: #000000;
  --panel-light: #000000;
  --panel-light-text: #ffffff;
  --dark-start: #000000;
  --dark-end: #000000;
  --text: #ffffff;
  --muted: #383838;
  --line: #000000;
  --accent: #0016a8;
  --accent2: #820000;
  --button-bg: #000000;
  --button-text: #ffffff;
  --button-dark-bg: #000000;
  --button-dark-text: #ffffff;
  --primary-bg: #000000;
  --primary-text: #ffffff;
  --control-bg: #000000;
  --control-border: #000000;
  --control-value-bg: #000000;
  --canvas-bg: #000000;
  --sliderTrack: #000000;
  --warning: #f4ff54;
  --warning-text: #ff0000;
  --shadow: none;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #000;
  color: var(--text);
}
body {
  padding: 8px;
}
.page {
  max-width: 1400px;
  margin: 0 auto;
}
.app-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 10px;
  align-items: start;
}
.panel {
  border-radius: 16px;
  padding: 10px;
  box-shadow: var(--shadow);
  border: 1px solid #080808;
}
.panel.dark {
  background: linear-gradient(180deg, var(--dark-start) 0%, var(--dark-end) 100%);
  color: var(--text);
}
.panel.light {
  background: var(--panel-light);
  color: var(--panel-light-text);
}
.top-panel,
.side-panel {
  min-height: calc(100vh - 16px);
}
.topbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: end;
}
.field {
  display: grid;
  gap: 4px;
}
.field span,
.mini-title,
.saved-head,
.control-label,
.section-head h2 {
  font-weight: 700;
}
.field span,
.small-note,
.control-hint,
.warning,
.summary-k {
  font-size: 12px;
}
.field input,
.field select,
.controls-grid input[type="range"],
.controls-grid select,
button,
.like-button,
#savedPresetSelect {
  font: inherit;
}
.field select,
#savedPresetSelect,
select,
input[type="text"] {
  width: 100%;
  border-radius: 12px;
  border: 1px solid #111;
  background: #050505;
  color: #fff;
  padding: 10px 12px;
  height: 44px;
}
button, .like-button {
  border: 1px solid #111;
  background: var(--button-dark-bg);
  color: var(--button-dark-text);
  border-radius: 12px;
  padding: 10px 12px;
  cursor: pointer;
  min-height: 40px;
}
button.primary {
  background: var(--primary-bg);
  color: var(--primary-text);
  font-weight: 700;
}
.button-row, .saved-row { display: flex; align-items: center; }
.wrap { flex-wrap: wrap; }
.grow { flex: 1 1 auto; }
.compact-buttons {
  gap: 6px;
  margin-top: 8px;
}
.compact-buttons button,
.compact-file-btn {
  padding: 9px 11px;
  font-size: 14px;
}
.compact-status {
  min-width: 120px;
  padding: 10px 12px;
  border-radius: 12px;
  background: #050505;
  border: 1px solid #111;
  color: #fff;
  text-align: center;
  font-size: 14px;
}
.preview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 8px;
}
.preview-card {
  border-radius: 14px;
  border: 1px solid #111;
  background: #030303;
  padding: 8px;
}
.mini-title {
  margin-bottom: 6px;
  font-size: 13px;
}
canvas {
  width: 100%;
  height: 150px;
  background: #000;
  border-radius: 12px;
  border: 1px solid #0d0d0d;
}
.compact-summary {
  margin-top: 8px;
  border-radius: 14px;
  border: 1px solid #111;
  background: #030303;
  padding: 8px;
}
.summary-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}
.summary-item {
  display: grid;
  gap: 2px;
  padding: 6px 8px;
  border-radius: 10px;
  background: #050505;
  border: 1px solid #111;
}
.summary-item.wide {
  grid-column: span 1;
}
.summary-v {
  font-size: 13px;
  line-height: 1.25;
}
.formula-row {
  display: grid;
  gap: 4px;
  margin-top: 8px;
  padding: 8px;
  border-radius: 10px;
  background: #050505;
  border: 1px solid #111;
  color: #d8d8d8;
  font-size: 12px;
  overflow-wrap: anywhere;
}
.warning {
  margin-top: 8px;
  border-radius: 10px;
  border: 1px solid #222;
  background: #0b0b0b;
  padding: 8px;
  color: #8f8f8f;
  line-height: 1.3;
}
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 8px;
  margin-bottom: 8px;
}
.section-head h2 {
  margin: 0;
  font-size: 18px;
}
.controls-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
}
.control-card {
  border: 1px solid #111;
  background: var(--control-bg);
  border-radius: 12px;
  padding: 8px;
  display: grid;
  gap: 6px;
}
.control-top {
  display: flex;
  justify-content: space-between;
  gap: 6px;
  align-items: start;
}
.control-label {
  font-size: 13px;
  line-height: 1.15;
}
.control-hint {
  color: #6f6f6f;
  line-height: 1.15;
}
.control-value {
  background: var(--control-value-bg);
  color: #000;
  border-radius: 8px;
  padding: 3px 6px;
  min-width: 44px;
  text-align: right;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
}
input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
  margin: 0;
}
.checkbox-card {
  grid-column: 1 / -1;
  display: flex;
  gap: 8px;
  align-items: start;
}
.checkbox-card input {
  margin-top: 2px;
  accent-color: var(--accent);
}
.saved-inline {
  margin-top: 8px;
  border-top: 1px solid #111;
  padding-top: 8px;
}
.saved-row {
  gap: 6px;
}
.saved-row button {
  white-space: nowrap;
}
.mono {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.like-button {
  display: inline-flex;
  align-items: center;
}

@media (max-width: 980px) {
  .app-grid {
    grid-template-columns: 1fr;
  }
  .top-panel,
  .side-panel {
    min-height: auto;
  }
  .controls-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  body { padding: 6px; }
  .panel { padding: 8px; border-radius: 14px; }
  .topbar {
    grid-template-columns: 1fr;
  }
  .compact-status {
    min-width: 0;
    width: 100%;
  }
  .preview-grid {
    grid-template-columns: 1fr 1fr;
    gap: 6px;
  }
  canvas {
    height: 108px;
  }
  .controls-grid {
    grid-template-columns: 1fr 1fr;
    gap: 5px;
  }
  .control-card {
    padding: 7px;
  }
  .control-label { font-size: 12px; }
  .control-hint { display: none; }
  .summary-row {
    grid-template-columns: 1fr;
  }
  .summary-item { padding: 6px; }
  .compact-buttons {
    gap: 5px;
  }
  .compact-buttons button,
  .compact-file-btn {
    flex: 1 1 calc(25% - 5px);
    min-width: 0;
    justify-content: center;
    font-size: 13px;
    padding: 8px 8px;
  }
  .saved-row {
    flex-wrap: wrap;
  }
  .saved-row button {
    flex: 1 1 80px;
  }
}



/* Cross-browser robustness and mobile visibility fixes */
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
body {
  overflow-x: hidden;
}
.page,
.panel,
.preview-card,
.compact-summary,
.control-card,
.saved-inline {
  min-width: 0;
}
.field select,
#savedPresetSelect,
select,
input[type="text"],
button,
.like-button {
  min-width: 0;
  font-size: 16px; /* avoids iOS zoom on focus */
}
.button-row {
  gap: 6px;
}
.button-row > *,
.saved-row > * {
  min-width: 0;
}
.control-value {
  color: #ffffff;
  background: #0a0a0a;
  border: 1px solid #111;
}
.formula-row,
.summary-v,
.warning,
.saved-head,
.control-label {
  overflow-wrap: anywhere;
}
.formula-row {
  overflow-x: auto;
  scrollbar-width: thin;
}
.checkbox-card {
  flex-wrap: wrap;
}
.checkbox-card input {
  width: 24px;
  height: 24px;
}
input[type="range"] {
  background: transparent;
}
canvas {
  display: block;
  max-width: 100%;
}

@media (max-width: 820px) {
  .preview-grid,
  .controls-grid,
  .summary-row {
    grid-template-columns: 1fr;
  }
  .compact-buttons {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
  }
  .compact-buttons button,
  .compact-file-btn {
    width: 100%;
    justify-content: center;
  }
  .saved-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
  }
  #savedPresetSelect {
    grid-column: 1 / -1;
  }
}

@media (max-width: 560px) {
  body {
    padding: 4px;
  }
  .panel {
    padding: 8px;
    border-radius: 12px;
  }
  .compact-buttons {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .preview-grid,
  .controls-grid,
  .summary-row,
  .saved-row,
  .topbar {
    grid-template-columns: 1fr;
  }
  .saved-row button,
  .compact-buttons button,
  .compact-file-btn {
    width: 100%;
  }
  canvas {
    height: 112px;
  }
  .compact-status {
    width: 100%;
  }
}

/* -------------------------------------------------------------------------- */
/* Project editor additions: layering, automation and sequencing              */
/* -------------------------------------------------------------------------- */

.project-panel {
  margin-top: 10px;
  min-height: auto;
}
.panel-subsection {
  margin-top: 10px;
  border-top: 1px solid #111;
  padding-top: 10px;
}
.layers-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}
.layer-card {
  display: grid;
  gap: 8px;
  border: 1px solid #111;
  background: #050505;
  border-radius: 12px;
  padding: 10px;
}
.layer-card span {
  font-weight: 700;
  font-size: 13px;
}
.layer-card input[type="checkbox"] {
  width: 22px;
  height: 22px;
}
.automation-stack,
.sequence-stack {
  display: grid;
  gap: 10px;
}
.automation-card,
.sequence-card {
  border: 1px solid #111;
  background: #030303;
  border-radius: 14px;
  padding: 10px;
}
.sequence-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}
.sequence-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.sequence-grid,
.automation-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}
.sequence-empty {
  padding: 14px;
  border: 1px dashed #222;
  border-radius: 12px;
  color: #9a9a9a;
  background: #050505;
}
.timeline-canvas {
  width: 100%;
  height: 96px;
  margin: 10px 0;
  border: 1px solid #111;
  border-radius: 12px;
  background: #050505;
}
.bpm-field {
  max-width: 240px;
}
#sequenceBpmInput {
  width: 100%;
  border-radius: 12px;
  border: 1px solid #111;
  background: #050505;
  color: #fff;
  padding: 10px 12px;
  height: 44px;
}

@media (max-width: 980px) {
  .layers-grid,
  .sequence-grid,
  .automation-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .layers-grid,
  .sequence-grid,
  .automation-grid {
    grid-template-columns: 1fr;
  }
  .sequence-card-head {
    flex-direction: column;
    align-items: stretch;
  }
  .bpm-field {
    max-width: none;
  }
}