/* ============================================= */
/* MIDIocre Demo Player — FULL RETRO INTEGRATION */
/* Original + kick-ass WaReZ bomb wrapper        */
/* 100% no CDN, pure system fonts, theme-aware   */
/* ============================================= */

/* ───────────────── THEME VARIABLES (from original) ───────────────── */

[data-theme="midnight"] {
  --bg-body: #1a1a2e;
  --bg-card: #16213e;
  --bg-input: #0f3460;
  --bg-input-hover: #1a4a8a;
  --bg-viz: #0a1628;
  --text-primary: #e0e0e0;
  --text-secondary: #aaa;
  --text-muted: #888;
  --accent: #e94560;
  --accent-dim: rgba(233, 69, 96, 0.3);
  --accent-glow: rgba(233, 69, 96, 0.6);
  --border: #333;
  --shadow: rgba(0, 0, 0, 0.4);
  --key-white: #e0e0e0;
  --key-black: #1a1a2e;
  --key-active: #ff6b81;
  --key-black-active: #e94560;
  --waterfall-note: rgba(233, 69, 96, 0.8);
  --waterfall-trail: rgba(100, 149, 237, 0.5);
  --wave-fill: rgba(233, 69, 96, 0.25);
  --wave-stroke: #e94560;
  --wave-grid: rgba(255, 255, 255, 0.06);
}

[data-theme="synthwave"] {
  --bg-body: #0d0221;
  --bg-card: #150735;
  --bg-input: #240e4f;
  --bg-input-hover: #3a1a7a;
  --bg-viz: #08011a;
  --text-primary: #f0d0ff;
  --text-secondary: #b48ecf;
  --text-muted: #7a5a99;
  --accent: #ff2975;
  --accent-dim: rgba(255, 41, 117, 0.3);
  --accent-glow: rgba(255, 41, 117, 0.6);
  --border: #3a1a6a;
  --shadow: rgba(0, 0, 0, 0.6);
  --key-white: #e8d0ff;
  --key-black: #1a0838;
  --key-active: #ff2975;
  --key-black-active: #ff71a8;
  --waterfall-note: rgba(255, 41, 117, 0.8);
  --waterfall-trail: rgba(0, 255, 255, 0.45);
  --wave-fill: rgba(0, 255, 255, 0.15);
  --wave-stroke: #00ffff;
  --wave-grid: rgba(255, 41, 117, 0.08);
}

[data-theme="emerald"] {
  --bg-body: #0a1a0a;
  --bg-card: #0f2e1a;
  --bg-input: #1a4a2a;
  --bg-input-hover: #2a6a3a;
  --bg-viz: #061208;
  --text-primary: #c8f0d0;
  --text-secondary: #88b898;
  --text-muted: #5a8a6a;
  --accent: #00e676;
  --accent-dim: rgba(0, 230, 118, 0.3);
  --accent-glow: rgba(0, 230, 118, 0.6);
  --border: #1a3a2a;
  --shadow: rgba(0, 0, 0, 0.5);
  --key-white: #c8f0d0;
  --key-black: #0a1a0a;
  --key-active: #00e676;
  --key-black-active: #69f0ae;
  --waterfall-note: rgba(0, 230, 118, 0.8);
  --waterfall-trail: rgba(129, 199, 132, 0.4);
  --wave-fill: rgba(0, 230, 118, 0.15);
  --wave-stroke: #00e676;
  --wave-grid: rgba(0, 230, 118, 0.08);
}

[data-theme="frost"] {
  --bg-body: #e8ecf1;
  --bg-card: #f5f7fa;
  --bg-input: #dce3eb;
  --bg-input-hover: #c5d0dd;
  --bg-viz: #d0d8e2;
  --text-primary: #1a2a3a;
  --text-secondary: #4a5a6a;
  --text-muted: #7a8a9a;
  --accent: #2979ff;
  --accent-dim: rgba(41, 121, 255, 0.2);
  --accent-glow: rgba(41, 121, 255, 0.5);
  --border: #bcc8d8;
  --shadow: rgba(0, 0, 0, 0.1);
  --key-white: #f5f7fa;
  --key-black: #3a4a5a;
  --key-active: #2979ff;
  --key-black-active: #448aff;
  --waterfall-note: rgba(41, 121, 255, 0.7);
  --waterfall-trail: rgba(130, 177, 255, 0.4);
  --wave-fill: rgba(41, 121, 255, 0.15);
  --wave-stroke: #2979ff;
  --wave-grid: rgba(0, 0, 0, 0.06);
}

[data-theme="hakerman"] {
  --bg-body: #0a0a0a;
  --bg-card: #0d0d0d;
  --bg-input: #111;
  --bg-input-hover: #1a1a1a;
  --bg-viz: #050505;
  --text-primary: #33ff33;
  --text-secondary: #20cc20;
  --text-muted: #0f8a0f;
  --accent: #33ff33;
  --accent-dim: rgba(51, 255, 51, 0.15);
  --accent-glow: rgba(51, 255, 51, 0.5);
  --border: #1a2a1a;
  --shadow: rgba(0, 255, 0, 0.08);
  --key-white: #33ff33;
  --key-black: #0a0a0a;
  --key-active: #66ff66;
  --key-black-active: #33ff33;
  --waterfall-note: rgba(51, 255, 51, 0.9);
  --waterfall-trail: rgba(0, 180, 0, 0.35);
  --wave-fill: rgba(51, 255, 51, 0.12);
  --wave-stroke: #33ff33;
  --wave-grid: rgba(51, 255, 51, 0.06);
}

[data-theme="hakerman"] body,
[data-theme="hakerman"] #app {
  font-family: 'Courier New', 'Lucida Console', 'Consolas', monospace;
}

[data-theme="hakerman"] h1,
[data-theme="hakerman"] h2,
[data-theme="hakerman"] h3 {
  text-shadow: 0 0 8px rgba(51, 255, 51, 0.6);
}

[data-theme="hakerman"] .transport button {
  border: 1px solid rgba(51, 255, 51, 0.3);
  border-radius: 4px;
  text-shadow: 0 0 6px rgba(51, 255, 51, 0.8);
}

[data-theme="hakerman"] .viz-container {
  border: 1px solid rgba(51, 255, 51, 0.15);
  box-shadow: inset 0 0 30px rgba(51, 255, 51, 0.03);
}

[data-theme="hakerman"] select,
[data-theme="hakerman"] input[type="text"] {
  font-family: 'Courier New', monospace;
}

/* ═══════════════════════ BASE STYLES ═══════════════════════ */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  /* force system font for the inner app canvas */
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  background: var(--bg-body);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 2rem;
  transition: background 0.4s ease;
}

/* wrapper (outer visual border) may use chosen font */
.wrapper {
  font-family: var(--app-font);
}

#app {
  /* always use system font inside the playable area */
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif !important;
  max-width: 900px;
  width: 100%;
  background: var(--bg-card);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 8px 32px var(--shadow);
  transition: background 0.4s ease, box-shadow 0.4s ease;
}

/* ═══════════════════════ HEADER ═══════════════════════ */

header {
  text-align: center;
  margin-bottom: 1.5rem;
}

header h1 {
  font-size: 1.8rem;
  color: var(--accent);
  margin-bottom: 0.25rem;
  transition: color 0.4s ease;
}

header .tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
}

.header-controls {
  display: flex;
  justify-content: center;
  margin-top: 0.75rem;
  gap: 0.5rem;
}

.theme-picker {
  display: flex;
  gap: 4px;
  align-items: center;
  background: var(--bg-input);
  border-radius: 8px;
  padding: 3px;
  transition: background 0.3s ease;
}

#font-select {
  font-family: inherit;
  padding: 2px 4px;
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  margin-right: 6px;
}

/* font-selector-row is a transparent layout wrapper; hidden via font-picker-hidden on parent */
#font-selector-row {
  display: contents;
}

/* hide the font selector + its label when showFontSelector=false in config */
.font-picker-hidden #font-selector-row,
.font-picker-hidden label[for="font-select"] {
  display: none !important;
}

.theme-picker label[for="font-select"] {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-right: 4px;
}

.theme-btn {
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 6px;
  background: transparent;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.6;
}

.theme-btn:hover {
  background: var(--bg-input-hover);
  opacity: 0.9;
  transform: scale(1.1);
}

.theme-btn.active {
  background: var(--accent-dim);
  opacity: 1;
  box-shadow: 0 0 8px var(--accent-glow);
}

/* ═══════════════════════ CONTROLS ═══════════════════════ */

#controls {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.control-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.dropdowns {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  width: 100%;
}

.dropdowns label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
  min-width: 180px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.dropdowns select {
  padding: 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-input);
  color: var(--text-primary);
  font-size: 0.9rem;
  cursor: pointer;
  transition: background 0.3s, border-color 0.3s;
}

.dropdowns select:hover {
  border-color: var(--accent);
}

.select-with-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-buttons {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-btn {
  width: 24px;
  height: 20px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--bg-input);
  color: var(--text-secondary);
  font-size: 0.7rem;
  cursor: pointer;
  transition: background 0.3s, color 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  line-height: 1;
}

.nav-btn:hover {
  background: var(--bg-input-hover);
  color: var(--accent);
}

.transport {
  justify-content: center;
  gap: 0.5rem;
}

.transport button {
  width: 48px;
  height: 48px;
  border: none;
  border-radius: 50%;
  background: var(--bg-input);
  color: var(--accent);
  font-size: 1.4rem;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s, box-shadow 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.transport button:hover:not(:disabled) {
  background: var(--bg-input-hover);
  transform: scale(1.05);
  box-shadow: 0 0 12px var(--accent-dim);
}

.transport button:disabled {
  opacity: 0.4;
  cursor: default;
}

.transport button.transport-sm {
  width: 38px;
  height: 38px;
  font-size: 1.1rem;
}

.loop-toggle {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  cursor: pointer;
  margin-left: 1rem;
}

.loop-toggle input {
  cursor: pointer;
  accent-color: var(--accent);
}

.slider-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  font-size: 0.85rem;
  color: var(--text-secondary);
  min-width: 200px;
}

.slider-label input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
  height: 6px;
}

.slider-label span {
  min-width: 44px;
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
}

/* ═══════════════════════ VISUALIZATION ═══════════════════════ */

#progress-section {
  margin-bottom: 1rem;
}

.viz-toolbar {
  display: flex;
  gap: 4px;
  margin-bottom: 0.5rem;
  background: var(--bg-input);
  border-radius: 8px;
  padding: 3px;
  width: fit-content;
}

.viz-toggle {
  width: 36px;
  height: 28px;
  border: none;
  border-radius: 6px;
  background: transparent;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.5;
}

.viz-toggle:hover {
  background: var(--bg-input-hover);
  opacity: 0.8;
}

.viz-toggle.active {
  background: var(--accent-dim);
  opacity: 1;
}

.viz-container {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  background: var(--bg-viz);
  margin-bottom: 0.5rem;
  transition: background 0.4s ease;
}

.viz-container canvas {
  display: block;
  width: 100%;
  cursor: pointer;
}

#piano-canvas {
  height: 80px;
}

#waterfall-canvas {
  height: 200px;
}

#waveform-canvas {
  height: 120px;
}

#time-display {
  text-align: center;
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
  color: var(--text-secondary);
}

#voice-count {
  margin-left: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ═══════════════════════ STATUS ═══════════════════════ */

#status {
  border-top: 1px solid var(--border);
  padding-top: 0.75rem;
  transition: border-color 0.4s ease;
}

#status-text {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
}

/* ═══════════════════════ SF2 BUILDER ═══════════════════════ */

#sf2-builder {
  margin-top: 1.5rem;
  border-top: 1px solid var(--border);
  padding-top: 0.75rem;
  transition: border-color 0.4s ease;
}

.builder-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  padding: 0.5rem 0;
  -webkit-user-select: none;
  user-select: none;
}

.builder-header h2 {
  font-size: 1.1rem;
  color: var(--accent);
  margin: 0;
  transition: color 0.4s ease;
}

.builder-arrow {
  font-size: 1.2rem;
  color: var(--text-muted);
  transition: transform 0.3s ease;
}

.builder-arrow.open {
  transform: rotate(90deg);
}

.builder-body {
  display: none;
  animation: builderSlideIn 0.3s ease;
}

.builder-body.open {
  display: block;
}

@keyframes builderSlideIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.builder-row {
  display: flex;
  gap: 1rem;
  margin: 0.75rem 0;
  min-height: 240px;
}

.builder-sources,
.builder-selection {
  flex: 1;
  background: var(--bg-input);
  border-radius: 8px;
  padding: 0.75rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: background 0.3s ease;
}

.builder-sources h3,
.builder-selection h3 {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin: 0 0 0.5rem;
  flex-shrink: 0;
}

.builder-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-style: italic;
  padding: 0.5rem 0;
}

/* Catalog list (left panel) */
.catalog-list {
  flex: 1;
  overflow-y: auto;
  max-height: 300px;
}

.catalog-sf2 {
  margin-bottom: 0.5rem;
}

.catalog-sf2-header {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.5rem;
  background: var(--bg-card);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: background 0.2s;
}

.catalog-sf2-header:hover {
  background: var(--bg-input-hover);
}

.catalog-sf2-arrow {
  font-size: 0.65rem;
  transition: transform 0.2s;
  color: var(--text-muted);
}

.catalog-sf2-arrow.open {
  transform: rotate(90deg);
}

.catalog-sf2-count {
  margin-left: auto;
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 400;
}

.catalog-presets {
  display: none;
  padding-left: 0.25rem;
  margin-top: 0.25rem;
}

.catalog-presets.open {
  display: block;
}

.catalog-preset {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--text-primary);
  cursor: pointer;
  transition: background 0.15s;
}

.catalog-preset:hover {
  background: var(--bg-input-hover);
}

.catalog-preset input[type="checkbox"] {
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}

.catalog-preset .preset-id {
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  min-width: 50px;
}

.catalog-preset .preset-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.catalog-preset.selected {
  background: var(--accent-dim);
}

/* Select all button per SF2 */
.catalog-select-all {
  font-size: 0.65rem;
  color: var(--accent);
  background: none;
  border: 1px solid var(--accent);
  border-radius: 4px;
  padding: 1px 6px;
  cursor: pointer;
  margin-left: auto;
  transition: background 0.2s, color 0.2s;
}

.catalog-select-all:hover {
  background: var(--accent);
  color: var(--bg-card);
}

/* Selection list (right panel) */
.selection-list {
  flex: 1;
  overflow-y: auto;
  max-height: 260px;
}

.selection-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  color: var(--text-primary);
  transition: background 0.15s;
}

.selection-item:hover {
  background: var(--bg-input-hover);
}

.selection-item .sel-source {
  font-size: 0.65rem;
  color: var(--text-muted);
  max-width: 80px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.selection-item .sel-preset {
  flex: 1;
}

.selection-item .sel-remove {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 0 4px;
  opacity: 0.6;
  transition: opacity 0.2s;
}

.selection-item .sel-remove:hover {
  opacity: 1;
}

/* Builder form */
.builder-form {
  margin-top: 0.75rem;
  padding: 0.75rem;
  background: var(--bg-input);
  border-radius: 8px;
  transition: background 0.3s ease;
}

.builder-form h3 {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin: 0 0 0.5rem;
}

.builder-form-row {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.builder-form-row label {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.builder-form-row label.full-width {
  flex: 1 1 100%;
}

.builder-form-row input[type="text"] {
  padding: 0.4rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-body);
  color: var(--text-primary);
  font-size: 0.8rem;
  transition: border-color 0.2s;
}

.builder-form-row input[type="text"]:focus {
  outline: none;
  border-color: var(--accent);
}

.builder-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.75rem;
  gap: 1rem;
}

.overwrite-toggle {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
  cursor: pointer;
}

.overwrite-toggle input {
  accent-color: var(--accent);
  cursor: pointer;
}

.builder-btn {
  padding: 0.5rem 1.2rem;
  border: none;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s, box-shadow 0.2s;
}

.builder-btn:disabled {
  opacity: 0.4;
  cursor: default;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  box-shadow: 0 0 12px var(--accent-glow);
  transform: scale(1.02);
}

.btn-secondary {
  background: var(--bg-body);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--text-primary);
}

.build-result {
  margin-top: 0.5rem;
  padding: 0.5rem;
  border-radius: 6px;
  font-size: 0.75rem;
  display: none;
}

.build-result.success {
  display: block;
  background: rgba(0, 230, 118, 0.15);
  color: #69f0ae;
  border: 1px solid rgba(0, 230, 118, 0.3);
}

.build-result.error {
  display: block;
  background: rgba(255, 82, 82, 0.15);
  color: #ff5252;
  border: 1px solid rgba(255, 82, 82, 0.3);
}

.build-result.building {
  display: block;
  background: var(--accent-dim);
  color: var(--text-primary);
  border: 1px solid var(--accent);
}

/* ====================== RETRO BOMB WRAPPER ====================== */
.bomb-svg {
  display: block;
  width: 100%;
  height: auto;
  filter: drop-shadow(0 0 30px #00ffff);
}

/* optional spark/flame animations if elements present */
.spark {
  animation: fuseSpark 0.65s ease-in-out infinite alternate;
}
@keyframes fuseSpark {
  0% { opacity:0.3; transform:scale(0.6); }
  100% { opacity:1; transform:scale(1.4); }
}
#flame {
  animation: flameFlicker 0.12s linear infinite alternate;
}
@keyframes flameFlicker {
  0% { ry:18; rx:9; opacity:0.85; }
  100% { ry:22; rx:11; opacity:1; }
}

.wrapper {
  position: relative;
  border: 8px solid #ff0044;
  box-shadow: 0 0 80px #ff0044, inset 0 0 80px rgba(255,0,68,0.4);
  background: #110000;
  max-width: 960px;
  width: 100%;
  overflow: hidden;
  font-family: var(--app-font); /* maintain custom font */
}

.header {
  position: relative;          /* make overlay elements absolute to header */
  font-family: 'Courier New', monospace;
  font-size: 38px;
  color: #ff00ff;
  text-shadow: 0 0 15px #ff00ff, 0 0 30px #ff00ff;
  letter-spacing: 12px;
  text-align: center;
  padding: 12px 0;
  background: #440000;
  border-bottom: 6px solid #ff0044;
}

.footer {
  font-family: 'Courier New', monospace;
  font-size: 22px;
  color: #00ffcc;
  text-shadow: 0 0 12px #00ffcc;
  letter-spacing: 8px;
  text-align: center;
  padding: 12px 0;
  background: #220000;
  border-top: 6px solid #ff0044;
}

/* overlay the wrapper but sit beneath the core player */
.wrapper .scanlines {
  position: absolute; top:0; left:0; right:0; bottom:0;
  background: repeating-linear-gradient(to bottom, transparent 0px, transparent 4px, rgba(255,255,255,0.07) 4px, rgba(255,255,255,0.07) 8px);
  pointer-events: none; z-index: 1;
  animation: scan 4.5s linear infinite;
}
@keyframes scan { 0% {background-position:0 0;} 100% {background-position:0 600px;} }

.wrapper .crt {
  position: absolute; top:0; left:0; right:0; bottom:0;
  box-shadow: inset 0 0 120px rgba(0,0,0,0.9);
  pointer-events: none; z-index: 1;
}

/* inner #app now sits perfectly inside the glowing border */
#app {
  position: relative;
  z-index: 2;
  background: var(--bg-card);
  padding: 2rem;
  margin: 0 20px 20px 20px; /* breathing room inside the frame */
  border-radius: 0; /* no rounded corners - pure 90s box */
  box-shadow: none; /* we use the outer wrapper glow instead */
  transition: background 0.4s ease;
}

/* make all your controls pop against the CRT */
#controls, .viz-container, .transport button {
  border: 2px solid var(--border);
  box-shadow: inset 0 0 20px var(--shadow);
}

.transport button:hover:not(:disabled) {
  box-shadow: 0 0 20px var(--accent-glow);
}