:root {
  --bg: #0a0c0f;
  --panel: #12151a;
  --panel-2: #171b21;
  --grid: #1f242c;
  --text: #dbe2e8;
  --text-dim: #6d7683;
  --before: #4fd3c4;
  --after: #ff8a3d;
  --danger: #ff5c5c;
  --ok: #7ee787;
  --success: #7ee787;
  --warn: #fbbf24;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
}

body { min-height: 100vh; padding: 20px; }

.wrap { max-width: 1400px; margin: 0 auto; }

/* Header */
header {
  margin-bottom: 24px;
  border-bottom: 1px solid var(--grid);
  padding-bottom: 16px;
}

header .eyebrow {
  color: var(--text-dim);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

header h1 {
  font-size: 28px;
  font-weight: 700;
  margin: 6px 0;
  font-family: 'Space Grotesk', sans-serif;
  letter-spacing: 0.01em;
}

header h1 span { color: var(--ok); }

header p {
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.6;
  max-width: 800px;
  margin: 0;
}

header p b { color: var(--text); }

/* Mic Banner */
.mic-banner {
  display: none;
  align-items: center;
  gap: 14px;
  background: linear-gradient(90deg, #5a3319, #3a1f0f);
  border: 1px solid var(--danger);
  border-radius: 8px;
  padding: 12px 18px;
  margin-bottom: 18px;
  animation: pulseBanner 2s ease-in-out infinite;
}

@keyframes pulseBanner {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 92, 92, 0.2); }
  50% { box-shadow: 0 0 12px 2px rgba(255, 92, 92, 0.15); }
}

.mic-banner .mic-icon {
  font-size: 22px;
  line-height: 1;
}

.mic-banner b {
  display: block;
  color: var(--danger);
  font-size: 12px;
  margin-bottom: 2px;
}

.mic-banner span {
  font-size: 11px;
  color: var(--text-dim);
}

/* Master Panel */
.master-panel {
  background: var(--panel);
  border: 1px solid var(--grid);
  border-radius: 10px;
  padding: 18px 20px;
  margin-bottom: 20px;
}

.master-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--grid);
  padding-bottom: 10px;
}

.master-header h2 {
  margin: 0;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.master-row {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.master-row:last-child { margin-bottom: 0; }

.master-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 200px;
  flex: 1;
}

.master-group label.grouplabel {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}

/* Aggregate Meter */
.master-meter-wrap {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--grid);
}

.master-meter-label {
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.master-meter-track {
  height: 10px;
  background: #05070a;
  border: 1px solid var(--grid);
  border-radius: 5px;
  overflow: hidden;
}

.master-meter-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #1f4b47, var(--ok));
  transition: width 0.05s linear, background 0.2s;
}

/* Buttons */
.btn {
  background: var(--panel-2);
  border: 1px solid var(--grid);
  color: var(--text);
  padding: 10px 18px;
  border-radius: 7px;
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, transform 0.1s, opacity 0.2s;
}

.btn:hover { border-color: #3a4250; transform: translateY(-1px); }

.btn.danger {
  background: var(--danger);
  color: #1a0000;
  border-color: var(--danger);
  font-weight: 700;
}

.btn.success {
  background: var(--success);
  color: #04211d;
  border-color: var(--success);
  font-weight: 700;
}

.btn.disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
  filter: grayscale(0.6);
}

.btnset {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.status { font-size: 12px; color: var(--text-dim); }

/* Sliders & Selects */
select {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--grid);
  border-radius: 6px;
  padding: 8px 10px;
  font-family: inherit;
  font-size: 12.5px;
  cursor: pointer;
}

select:focus { outline: 2px solid var(--after); outline-offset: 2px; }

.slider-field {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-dim);
}

.slider-field input[type="range"] {
  flex: 1;
  accent-color: var(--after);
  min-width: 120px;
}

.slider-field .val {
  color: var(--text);
  min-width: 44px;
  text-align: right;
  font-weight: 700;
}

/* Engine Grid */
.engine-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

/* Engine Card */
.engine-card {
  background: var(--panel);
  border: 1px solid var(--grid);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s;
}

.engine-card:hover { border-color: #2a3038; }

.engine-card.polarity-inverted {
  border-color: #5a3319;
  box-shadow: inset 0 0 0 1px #5a3319;
}

.engine-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  border-bottom: 2px solid;
  background: var(--panel-2);
  position: relative;
}

.engine-num {
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 0.1em;
}

.engine-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 15px;
  font-weight: 700;
  margin-top: 2px;
}

.engine-tag {
  font-size: 10px;
  color: var(--text-dim);
  margin-top: 2px;
}

.mode-badge {
  display: none;
  font-size: 9px;
  background: var(--after);
  color: #1a1000;
  padding: 2px 6px;
  border-radius: 4px;
  margin-top: 4px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.polarity-badge {
  display: none;
  font-size: 9px;
  background: var(--danger);
  color: #1a0000;
  padding: 2px 6px;
  border-radius: 4px;
  margin-top: 4px;
  margin-left: 4px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.engine-playbtn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: var(--grid);
  color: var(--text);
  font-size: 16px;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.engine-playbtn:hover { background: #3a4250; transform: scale(1.05); }
.engine-playbtn.running { background: var(--danger); color: #1a0000; }

/* Preview & Scope */
.curve-preview {
  width: 100%;
  height: 60px;
  background: #05070a;
  display: block;
  border-bottom: 1px solid var(--grid);
}

.engine-scope-wrap {
  padding: 12px;
  background: var(--bg);
}

.engine-scope {
  width: 100%;
  height: 80px;
  background: #05070a;
  border: 1px solid var(--grid);
  border-radius: 6px;
  display: block;
}

/* Card Controls */
.engine-controls {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid var(--grid);
  flex-wrap: wrap;
  align-items: center;
}

.engine-controls select,
.engine-controls input[type="range"] {
  accent-color: var(--ok);
}

.engine-controls select {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--grid);
  border-radius: 6px;
  padding: 6px 8px;
  font-family: inherit;
  font-size: 11px;
  flex: 1;
  min-width: 80px;
}

.engine-controls input[type="range"] {
  flex: 2;
  min-width: 100px;
}

/* Readout */
.engine-readout {
  display: flex;
  justify-content: space-between;
  padding: 10px 16px;
  border-top: 1px solid var(--grid);
  font-size: 11px;
  color: var(--text-dim);
  background: var(--panel-2);
}

.engine-readout b { color: var(--text); font-weight: 700; }

/* Settings Panel */
.settings-panel {
  background: var(--panel);
  border: 1px solid var(--grid);
  border-radius: 10px;
  padding: 18px 20px;
  margin-bottom: 24px;
}

.settings-panel h3 {
  margin: 0 0 8px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.settings-intro {
  color: var(--text-dim);
  font-size: 12px;
  margin: 0 0 16px;
  line-height: 1.5;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.setting-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: var(--panel-2);
  border: 1px solid var(--grid);
  border-radius: 8px;
  padding: 12px 14px;
  cursor: pointer;
  transition: border-color 0.15s;
}

.setting-row:hover { border-color: #3a4250; }

.setting-row input[type="checkbox"] {
  width: 16px;
  height: 16px;
  margin-top: 2px;
  accent-color: var(--ok);
  cursor: pointer;
  flex-shrink: 0;
}

.setting-text b {
  display: block;
  font-size: 12px;
  color: var(--text);
  margin-bottom: 3px;
}

.setting-text span {
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.4;
}

/* Settings Table */
.settings-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11.5px;
}

.settings-table thead {
  border-bottom: 1px solid var(--grid);
}

.settings-table th {
  text-align: left;
  padding: 8px 10px;
  color: var(--text-dim);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 10px;
}

.settings-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--grid);
  color: var(--text);
}

.settings-table tbody tr:last-child td {
  border-bottom: none;
}

.settings-table tbody tr:hover {
  background: var(--panel-2);
}

/* Footer */
footer {
  margin-top: 10px;
  color: var(--text-dim);
  font-size: 11px;
  line-height: 1.7;
  border-top: 1px solid var(--grid);
  padding-top: 16px;
}

footer b { color: var(--text); }

/* Responsive */
@media (max-width: 760px) {
  .engine-grid { grid-template-columns: 1fr; }
  .settings-grid { grid-template-columns: 1fr; }
  header h1 { font-size: 22px; }
  .master-row { flex-direction: column; }
  .master-group { min-width: auto; }
  .engine-controls { flex-direction: column; align-items: stretch; }
  .engine-controls input[type="range"] { width: 100%; }
  .btnset { flex-direction: column; }
  .btn { width: 100%; text-align: center; }
  .settings-table { font-size: 10.5px; }
  .settings-table th, .settings-table td { padding: 6px; }
}