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

:root {
  --bg: #0a0a0f;
  --surface: #12121a;
  --border: #1e1e2e;
  --text: #e0e0e8;
  --dim: #666680;
  --accent: #a855f7;
  --accent2: #06b6d4;
  --glow: rgba(168, 85, 247, 0.3);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 13px;
  overflow: hidden;
  height: 100vh;
  width: 100vw;
}

#main-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
}

/* Top Bar */
#top-bar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 40px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 12px;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(18, 18, 26, 0.85);
}

#top-bar button {
  background: var(--border);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-family: inherit;
  font-size: 12px;
  transition: background 0.15s;
}
#top-bar button:hover { background: var(--accent); border-color: var(--accent); }

#bpm-display {
  color: var(--accent);
  font-weight: bold;
  min-width: 70px;
}

#audio-status {
  color: var(--dim);
  font-size: 11px;
}

.spacer { flex: 1; }

#prompt-hint {
  color: var(--dim);
  font-size: 11px;
}
#prompt-hint kbd {
  background: var(--border);
  padding: 1px 5px;
  border-radius: 3px;
  font-family: inherit;
}

/* Prompt Overlay */
#prompt-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 200;
  justify-content: center;
  align-items: flex-start;
  padding-top: 20vh;
  backdrop-filter: blur(4px);
}
#prompt-overlay.open { display: flex; }

#prompt-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  width: 560px;
  padding: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 40px var(--glow);
}

#prompt-input {
  width: 100%;
  background: transparent;
  border: none;
  color: var(--text);
  font-family: inherit;
  font-size: 16px;
  outline: none;
}
#prompt-input::placeholder { color: var(--dim); }

#prompt-status {
  margin-top: 10px;
  color: var(--dim);
  font-size: 11px;
  min-height: 16px;
}

/* Bottom Dock - Layer Stack */
#bottom-dock {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: rgba(18, 18, 26, 0.85);
  border-top: 1px solid var(--border);
  backdrop-filter: blur(12px);
  z-index: 100;
  padding: 8px 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
}

.layer-card {
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  min-width: 180px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  transition: border-color 0.15s;
  flex-shrink: 0;
}
.layer-card.selected { border-color: var(--accent); box-shadow: 0 0 10px var(--glow); }
.layer-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}
.layer-card-name {
  font-size: 11px;
  font-weight: bold;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.layer-card-remove {
  background: none;
  border: none;
  color: var(--dim);
  cursor: pointer;
  font-size: 14px;
  padding: 0 2px;
  line-height: 1;
}
.layer-card-remove:hover { color: #f44; }

.layer-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
}
.layer-controls select {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 3px;
  font-size: 10px;
  font-family: inherit;
  padding: 1px 3px;
}
.layer-controls input[type="range"] {
  width: 60px;
  accent-color: var(--accent);
}

#add-layer-btn {
  background: var(--border);
  border: 1px dashed var(--dim);
  color: var(--dim);
  border-radius: 6px;
  padding: 6px 16px;
  cursor: pointer;
  font-family: inherit;
  font-size: 18px;
  flex-shrink: 0;
  transition: border-color 0.15s, color 0.15s;
}
#add-layer-btn:hover { border-color: var(--accent); color: var(--accent); }

/* Right Panel - Knobs */
#right-panel {
  position: fixed;
  top: 40px; right: 0; bottom: 60px;
  width: 240px;
  background: rgba(18, 18, 26, 0.85);
  border-left: 1px solid var(--border);
  backdrop-filter: blur(12px);
  z-index: 100;
  padding: 12px;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.2s;
}
#right-panel.open { transform: translateX(0); }

#knobs-title {
  font-size: 11px;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.knob-group {
  margin-bottom: 12px;
}
.knob-label {
  font-size: 11px;
  color: var(--dim);
  margin-bottom: 4px;
}
.knob-group input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}
.knob-group input[type="color"] {
  width: 100%;
  height: 28px;
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: 4px;
  cursor: pointer;
}
.knob-group select {
  width: 100%;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px;
  font-family: inherit;
  font-size: 12px;
}
.knob-value {
  font-size: 10px;
  color: var(--accent);
  text-align: right;
}

/* Library Panel */
#library-panel {
  display: none;
  position: fixed;
  top: 40px; left: 0; bottom: 60px;
  width: 280px;
  background: rgba(18, 18, 26, 0.92);
  border-right: 1px solid var(--border);
  backdrop-filter: blur(12px);
  z-index: 100;
  padding: 12px;
  overflow-y: auto;
}
#library-panel.open { display: block; }

#library-title {
  font-size: 11px;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

#library-search {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: inherit;
  font-size: 12px;
  padding: 6px 8px;
  border-radius: 4px;
  margin-bottom: 10px;
  outline: none;
}
#library-search:focus { border-color: var(--accent); }

.lib-item {
  background: var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  margin-bottom: 6px;
  cursor: pointer;
  transition: background 0.15s;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.lib-item:hover { background: #252538; }
.lib-item-name { font-size: 12px; font-weight: bold; }
.lib-item-prompt { font-size: 10px; color: var(--dim); margin-top: 2px; }
.lib-item-delete {
  background: none;
  border: none;
  color: var(--dim);
  cursor: pointer;
  font-size: 14px;
  padding: 2px 4px;
}
.lib-item-delete:hover { color: #f44; }

/* Command Menu */
#cmd-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 250;
  justify-content: center;
  align-items: flex-start;
  padding-top: 15vh;
  backdrop-filter: blur(4px);
}
#cmd-overlay.open { display: flex; }
#cmd-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  width: 420px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 40px var(--glow);
  overflow: hidden;
}
#cmd-search {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  padding: 12px 14px;
  outline: none;
}
#cmd-search::placeholder { color: var(--dim); }
#cmd-list {
  max-height: 320px;
  overflow-y: auto;
}
.cmd-item {
  padding: 8px 14px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.1s;
}
.cmd-item:hover, .cmd-item.active { background: var(--border); }
.cmd-item-label { font-size: 13px; }
.cmd-item-key {
  font-size: 10px;
  color: var(--dim);
  background: var(--bg);
  padding: 2px 6px;
  border-radius: 3px;
}

/* Context Menu */
#context-menu {
  display: none;
  position: fixed;
  z-index: 300;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 0;
  min-width: 180px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.5);
}
#context-menu.open { display: block; }
.ctx-item {
  padding: 6px 14px;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.1s;
}
.ctx-item:hover { background: var(--border); }
.ctx-danger { color: #f44; }
.ctx-danger:hover { background: rgba(255,68,68,0.15); }

/* Remix Dialog */
#remix-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 250;
  justify-content: center;
  align-items: flex-start;
  padding-top: 20vh;
  backdrop-filter: blur(4px);
}
#remix-overlay.open { display: flex; }
#remix-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  width: 500px;
  padding: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 40px var(--glow);
}
.remix-field { margin-bottom: 10px; }
.remix-field label {
  display: block;
  font-size: 11px;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}
.remix-field input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  padding: 8px 10px;
  border-radius: 6px;
  outline: none;
}
.remix-field input:focus { border-color: var(--accent); }
#remix-status {
  color: var(--dim);
  font-size: 11px;
  min-height: 16px;
  margin-bottom: 8px;
}
.remix-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}
.remix-actions button {
  background: var(--border);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  font-size: 12px;
}
#remix-generate { background: var(--accent); border-color: var(--accent); }
#remix-generate:hover { opacity: 0.9; }
#remix-cancel:hover { background: #252538; }

/* Layer visibility */
.layer-card.hidden-layer { opacity: 0.4; }
.layer-vis-btn {
  background: none;
  border: none;
  color: var(--accent2);
  cursor: pointer;
  font-size: 13px;
  padding: 0 3px;
  line-height: 1;
}
.layer-vis-btn.off { color: var(--dim); }

/* Scrollbar */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }