/* AMY Studio - Main Workstation Stylesheet */
:root {
  --bg-app: #07090e;
  --bg-header: #0e121b;
  --bg-panel: #121622;
  --bg-card: #171c2b;
  --bg-card-hover: #1f253a;
  --bg-darker: #0a0d14;
  --border-subtle: #202738;
  --border-focus: #00f0ff;
  --text-main: #f1f5f9;
  --text-dim: #94a3b8;
  --text-muted: #64748b;
  --accent-cyan: #00f0ff;
  --accent-cyan-glow: rgba(0, 240, 255, 0.4);
  --accent-gold: #ffb700;
  --accent-gold-glow: rgba(255, 183, 0, 0.35);
  --accent-green: #00ff88;
  --accent-green-glow: rgba(0, 255, 136, 0.35);
  --accent-red: #ff3366;
  --accent-red-glow: rgba(255, 51, 102, 0.35);
  --accent-purple: #b366ff;
  --accent-purple-glow: rgba(179, 102, 255, 0.35);
  --oled-green: #00ffaa;
  --oled-bg: #030806;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
}

body {
  background-color: var(--bg-app);
  color: var(--text-main);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ══════════════════════════════════════════════════════════
   HEADER BAR
   ══════════════════════════════════════════════════════════ */
header.app-header {
  background: var(--bg-header);
  border-bottom: 1px solid var(--border-subtle);
  padding: 8px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--accent-cyan), #0066ff);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Orbitron', monospace, sans-serif;
  font-weight: 900;
  font-size: 16px;
  color: #000;
  box-shadow: 0 0 14px var(--accent-cyan-glow);
}

.brand-info h1 {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-info .tagline {
  font-size: 10px;
  color: var(--text-muted);
}

.version-badge {
  font-size: 9px;
  font-family: 'JetBrains Mono', monospace;
  background: rgba(0, 240, 255, 0.12);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 240, 255, 0.3);
  padding: 1px 5px;
  border-radius: 4px;
}

.header-center {
  display: flex;
  align-items: center;
  gap: 12px;
}

.patch-selector-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 4px 8px;
}

.patch-dropdown {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  padding: 5px 10px;
  border-radius: 6px;
  outline: none;
  cursor: pointer;
  min-width: 200px;
}

.patch-dropdown:focus {
  border-color: var(--accent-cyan);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Button Component */
.btn {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}

.btn:hover {
  background: var(--bg-card-hover);
  border-color: #3b4563;
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), #0077ff);
  color: #000;
  border: none;
  font-weight: 700;
  box-shadow: 0 2px 10px var(--accent-cyan-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #33f3ff, #1a88ff);
  box-shadow: 0 4px 16px var(--accent-cyan-glow);
}

.btn-danger {
  background: linear-gradient(135deg, var(--accent-red), #99002b);
  color: #fff;
  border: none;
  font-weight: 700;
}

.btn-gold {
  background: linear-gradient(135deg, var(--accent-gold), #cc7a00);
  color: #000;
  border: none;
  font-weight: 700;
}

.btn-icon {
  padding: 6px 8px;
}

/* Status Indicator Pill */
.status-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 16px;
  font-size: 10px;
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-muted);
}

.dot.online {
  background: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
}

.dot.warning {
  background: var(--accent-gold);
  box-shadow: 0 0 8px var(--accent-gold);
}

.dot.error {
  background: var(--accent-red);
  box-shadow: 0 0 8px var(--accent-red);
}

/* ══════════════════════════════════════════════════════════
   NAVIGATION TABS
   ══════════════════════════════════════════════════════════ */
nav.view-tabs {
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 16px;
}

.tabs-group {
  display: flex;
  gap: 2px;
}

.tab-button {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-dim);
  font-size: 11px;
  font-weight: 600;
  padding: 10px 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}

.tab-button:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.03);
}

.tab-button.active {
  color: var(--accent-cyan);
  border-bottom-color: var(--accent-cyan);
  background: rgba(0, 240, 255, 0.05);
}

.master-controls-bar {
  display: flex;
  align-items: center;
  gap: 12px;
}

.volume-slider-group {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-dim);
}

input[type="range"] {
  accent-color: var(--accent-cyan);
  height: 4px;
  border-radius: 2px;
  background: var(--border-subtle);
  outline: none;
  cursor: pointer;
}

/* ══════════════════════════════════════════════════════════
   MAIN WORKSPACE LAYOUT
   ══════════════════════════════════════════════════════════ */
main.workspace {
  flex: 1;
  display: flex;
  overflow: hidden;
  background: var(--bg-app);
}

.view-container {
  flex: 1;
  display: none;
  overflow-y: auto;
  padding: 14px;
  gap: 14px;
}

.view-container.active {
  display: flex;
  flex-direction: column;
}

/* ══════════════════════════════════════════════════════════
   STUDIO PANELS & CARDS
   ══════════════════════════════════════════════════════════ */
.panel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
}

.panel-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-bottom: 6px;
}

.card-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 6px;
}

.card-title .highlight {
  color: var(--accent-cyan);
}

/* Parameter Grid */
.param-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(64px, 1fr));
  gap: 10px;
}

.param-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.param-label {
  font-size: 9px;
  font-weight: 600;
  color: var(--text-dim);
  text-align: center;
  white-space: nowrap;
}

.param-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--accent-cyan);
}

/* Rotary Knob Component */
.knob-container {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #2a3144, #121520);
  border: 2px solid #38425e;
  box-shadow: 0 3px 8px rgba(0,0,0,0.5), inset 0 2px 3px rgba(255,255,255,0.12);
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.knob-container:hover {
  border-color: var(--accent-cyan);
}

.knob-pointer {
  position: absolute;
  width: 3px;
  height: 16px;
  background: var(--accent-cyan);
  top: 4px;
  border-radius: 2px;
  transform-origin: 50% 18px;
  transform: rotate(-135deg);
  box-shadow: 0 0 8px var(--accent-cyan);
  transition: transform 0.04s ease-out;
}

.knob-pointer.gold {
  background: var(--accent-gold);
  box-shadow: 0 0 8px var(--accent-gold);
}

.knob-pointer.green {
  background: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
}

/* Graphical Envelope Display */
.envelope-canvas-box {
  background: var(--bg-darker);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  height: 100px;
  position: relative;
  overflow: hidden;
}

.envelope-canvas-box canvas {
  width: 100%;
  height: 100%;
}

/* ══════════════════════════════════════════════════════════
   MACRO BAR (SMK-S3)
   ══════════════════════════════════════════════════════════ */
.macro-section {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.macro-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 8px;
}

.macro-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 8px 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  transition: border-color 0.15s ease;
}

.macro-card:hover {
  border-color: var(--accent-gold);
}

.macro-name {
  font-size: 9px;
  font-weight: 700;
  color: var(--accent-gold);
  text-transform: uppercase;
}

/* ══════════════════════════════════════════════════════════
   ESP32-S3 OLED DISPLAY SIMULATOR (284 x 76)
   ══════════════════════════════════════════════════════════ */
.oled-container {
  background: #000;
  border: 3px solid #1c2233;
  border-radius: 8px;
  padding: 4px;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: inset 0 0 16px #000, 0 0 14px rgba(0, 255, 170, 0.15);
}

canvas#oledDisplayCanvas {
  width: 568px; /* 284 * 2 */
  height: 152px; /* 76 * 2 */
  max-width: 100%;
  image-rendering: pixelated;
  background: #000;
}

/* ══════════════════════════════════════════════════════════
   SEQUENCER GRID & DRUMS
   ══════════════════════════════════════════════════════════ */
.sequencer-track-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.track-header {
  width: 90px;
  font-size: 10px;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-dim);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.track-steps-container {
  display: flex;
  gap: 4px;
  flex: 1;
}

.seq-step {
  flex: 1;
  aspect-ratio: 1.2;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 8px;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-muted);
  transition: all 0.1s ease;
}

.seq-step:hover {
  border-color: var(--accent-cyan);
}

.seq-step.active {
  background: linear-gradient(135deg, var(--accent-green), #00994d);
  color: #000;
  font-weight: 700;
  border-color: #ffffff;
  box-shadow: 0 0 10px var(--accent-green-glow);
}

.seq-step.current {
  outline: 2px solid var(--accent-gold);
}

.seq-step:nth-child(4n + 1) {
  border-left: 2px solid #3b4666;
}

/* ══════════════════════════════════════════════════════════
   PERFORMANCE KEYBOARD & VISUALIZERS (FOOTER)
   ══════════════════════════════════════════════════════════ */
footer.performance-footer {
  background: var(--bg-header);
  border-top: 1px solid var(--border-subtle);
  display: grid;
  grid-template-columns: 240px 1fr 280px;
  gap: 12px;
  padding: 10px 16px;
  align-items: center;
}

/* Wheels */
.wheels-section {
  display: flex;
  gap: 12px;
  align-items: center;
}

.wheel-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.wheel-track {
  width: 26px;
  height: 90px;
  background: #090c14;
  border: 2px solid var(--border-subtle);
  border-radius: 4px;
  position: relative;
  cursor: pointer;
  overflow: hidden;
}

.wheel-thumb {
  position: absolute;
  width: 100%;
  height: 20px;
  background: linear-gradient(180deg, #3a445e, #1a1e2b);
  border-top: 1px solid #5a688e;
  border-bottom: 1px solid #000;
  top: 35px;
  border-radius: 2px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.6);
}

.wheel-label {
  font-size: 8px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* Piano Keyboard */
.piano-keyboard-container {
  height: 100px;
  background: #080b12;
  border: 2px solid #1a2130;
  border-radius: 8px;
  padding: 6px;
  display: flex;
  position: relative;
  overflow: hidden;
}

.piano-keys {
  display: flex;
  width: 100%;
  height: 100%;
  position: relative;
}

.key-white {
  flex: 1;
  background: linear-gradient(180deg, #f8fafc 0%, #cbd5e1 100%);
  border: 1px solid #475569;
  border-radius: 0 0 4px 4px;
  cursor: pointer;
  position: relative;
  z-index: 1;
  transition: background 0.05s ease;
}

.key-white:active, .key-white.active {
  background: linear-gradient(180deg, #00f0ff 0%, #0099ff 100%);
  box-shadow: 0 0 14px var(--accent-cyan-glow);
}

.key-black {
  position: absolute;
  width: 2.8%;
  height: 60%;
  background: linear-gradient(180deg, #1e293b 0%, #020617 100%);
  border: 1px solid #000;
  border-radius: 0 0 3px 3px;
  cursor: pointer;
  z-index: 2;
  transition: background 0.05s ease;
}

.key-black:active, .key-black.active {
  background: linear-gradient(180deg, #ffb700 0%, #cc7a00 100%);
  box-shadow: 0 0 12px var(--accent-gold-glow);
}

/* Visualizer Box */
.visualizer-box {
  background: var(--bg-darker);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  height: 90px;
  overflow: hidden;
  position: relative;
}

.visualizer-box canvas {
  width: 100%;
  height: 100%;
}

/* ══════════════════════════════════════════════════════════
   MIDI LOG & TERMINAL OVERLAYS
   ══════════════════════════════════════════════════════════ */
.terminal-window {
  background: #020408;
  border: 1px solid #1c2638;
  border-radius: 8px;
  padding: 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  height: 200px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.terminal-line {
  line-height: 1.4;
  color: #a0aec0;
}

.terminal-line.success { color: var(--accent-green); }
.terminal-line.warn { color: var(--accent-gold); }
.terminal-line.error { color: var(--accent-red); }
.terminal-line.info { color: var(--accent-cyan); }

/* Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-app);
}

::-webkit-scrollbar-thumb {
  background: var(--border-subtle);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: #384566;
}

/* ══════════════════════════════════════════════════════════
   KEYBOARD SPLIT ZONES
   ══════════════════════════════════════════════════════════ */
.piano-key.zone-lower.white {
  background: #102130 !important;
  border-bottom: 3px solid var(--accent-cyan) !important;
}
.piano-key.zone-lower.black {
  background: #061520 !important;
  border-bottom: 3px solid var(--accent-cyan) !important;
}
.piano-key.zone-upper.white {
  background: #11281e !important;
  border-bottom: 3px solid var(--accent-green) !important;
}
.piano-key.zone-upper.black {
  background: #061c12 !important;
  border-bottom: 3px solid var(--accent-green) !important;
}

/* ══════════════════════════════════════════════════════════
   PERFORMANCE HUD / LIVE STAGE MODE (FULLSCREEN)
   ══════════════════════════════════════════════════════════ */
.performance-hud-overlay {
  position: fixed;
  inset: 0;
  background: #04060b;
  z-index: 10000;
  display: none;
  flex-direction: column;
  padding: 24px 32px;
  gap: 16px;
  overflow-y: auto;
  animation: hudFadeIn 0.2s ease-out;
}

.performance-hud-overlay.active {
  display: flex;
}

@keyframes hudFadeIn {
  from { opacity: 0; transform: scale(0.98); }
  to { opacity: 1; transform: scale(1.0); }
}

.hud-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #192338;
  padding-bottom: 14px;
}

.hud-title {
  font-family: 'Orbitron', monospace, sans-serif;
  font-weight: 900;
  font-size: 20px;
  letter-spacing: 1px;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
}

.hud-tag {
  background: rgba(0, 240, 255, 0.15);
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 4px;
}

.hud-visualizer-container {
  width: 100%;
  height: 120px;
  background: #020408;
  border: 1px solid rgba(0, 240, 255, 0.3);
  border-radius: 8px;
  display: flex;
  gap: 4px;
  padding: 4px;
}

.hud-macros-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 12px;
}

.hud-macro-card {
  background: #0c111e;
  border: 1px solid #202b42;
  border-radius: 8px;
  padding: 12px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: all 0.15s ease;
}

.hud-macro-card:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(0, 240, 255, 0.25);
}

.hud-macro-name {
  font-size: 11px;
  font-weight: 800;
  color: #cbd5e1;
  letter-spacing: 0.5px;
}

.hud-macro-val {
  font-family: 'Orbitron', monospace;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-gold);
}

.hud-scenes-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 10px;
}

.hud-scene-slot {
  background: #101626;
  border: 1px solid #202b40;
  border-radius: 8px;
  padding: 14px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.hud-scene-slot.active {
  background: linear-gradient(135deg, #00f0ff, #0066ff);
  color: #000 !important;
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.4);
}

.hud-scene-slot.active .hud-scene-name {
  color: #000 !important;
}

.hud-scene-name {
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 100%;
  text-align: center;
  color: #e2e8f0;
}