/* NISPS Journey — Design C */
/* Phases that dissolve: Explore -> Teach -> Perform */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

:root {
  --bg: #0d0d0d;
  --glass-bg: rgba(13, 13, 13, 0.6);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-blur: 16px;
  --accent: #ff6a00;
  --accent-dim: rgba(255, 106, 0, 0.2);
  --accent-glow: rgba(255, 106, 0, 0.4);
  --danger: #ff4466;
  --text: #e0e0e0;
  --text-dim: rgba(255, 255, 255, 0.45);
  --text-muted: rgba(255, 255, 255, 0.25);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-pill: 6px;
  --transition: 400ms cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: 200ms ease-out;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  font-size: 13px;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

/* ============================================================
   Canvas
   ============================================================ */
#vis-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 0;
  transition: height var(--transition);
}

.app.phase-teach #vis-canvas,
.app.phase-teach #synth-vis-canvas {
  height: 40vh;
}

/* Synth visualizer canvas */
#synth-vis-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 0;
  transition: height var(--transition);
}

/* ============================================================
   Phase dots (top-center)
   ============================================================ */
.phase-dots {
  position: fixed;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  gap: 10px;
  padding: 6px 14px;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  transition: opacity var(--transition);
}

.phase-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1.5px solid var(--text-dim);
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: all var(--transition-fast);
}

.phase-dot.active {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}

.phase-dot:hover {
  border-color: var(--text);
}

/* ============================================================
   Heatmap strip
   ============================================================ */
.heatmap-strip {
  position: fixed;
  top: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  transition: opacity var(--transition);
  cursor: pointer;
}

.heatmap-cells {
  display: flex;
  gap: 1px;
  height: 16px;
}

.heatmap-cell {
  flex: 0 0 auto;
  width: 14px;
  height: 16px;
  background: #1a1a1a;
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}

.heatmap-bar {
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 50%;
  transition: width 0.1s ease-out;
  border-radius: 2px;
}

.heatmap-strip.wide .heatmap-cell {
  width: 3px;
  height: 16px;
}

.heatmap-count {
  font-size: 11px;
  color: var(--text-dim);
  white-space: nowrap;
  min-width: 16px;
  text-align: right;
}

.heatmap-tooltip {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 6px;
  padding: 4px 10px;
  background: rgba(0, 0, 0, 0.85);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  font-size: 11px;
  color: var(--text);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.heatmap-tooltip.show {
  opacity: 1;
}

/* ============================================================
   Mode pill (top-left)
   ============================================================ */
.mode-pill {
  position: fixed;
  top: 12px;
  left: 56px;
  z-index: 100;
  display: flex;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  overflow: hidden;
  transition: opacity var(--transition);
}

.mode-opt {
  padding: 5px 14px;
  font-size: 12px;
  color: var(--text-dim);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.mode-opt.active {
  color: var(--accent);
  background: var(--accent-dim);
}

/* ============================================================
   Explore phase prompts
   ============================================================ */
.explore-prompt {
  position: fixed;
  top: 35%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 50;
  text-align: center;
  pointer-events: none;
  transition: opacity var(--transition);
}

.prompt-text {
  font-size: 18px;
  color: var(--text-dim);
  animation: fadeSlideIn 800ms ease-out forwards;
  opacity: 0;
  animation-delay: 1s;
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.explore-ctas {
  position: fixed;
  bottom: calc(180px + var(--safe-bottom));
  left: 50%;
  transform: translateX(-50%);
  z-index: 60;
  display: flex;
  gap: 12px;
  transition: opacity var(--transition);
}

.cta-pill {
  padding: 10px 22px;
  font-size: 14px;
  color: var(--text);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.cta-pill:hover, .cta-pill:active {
  border-color: var(--text-dim);
}

.cta-pill.primary {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

.cta-pill.primary:hover, .cta-pill.primary:active {
  background: rgba(255, 106, 0, 0.3);
}

/* ============================================================
   Joystick
   ============================================================ */
.joystick-area {
  position: fixed;
  z-index: 85;
  width: 150px;
  height: 150px;
  transition: all var(--transition);
}

/* Phase 1: bottom-center */
.app.phase-explore .joystick-area {
  bottom: calc(24px + var(--safe-bottom));
  left: 50%;
  transform: translateX(-50%);
  width: 150px;
  height: 150px;
  opacity: 1;
}

/* Phase 2: left side, smaller */
.app.phase-teach .joystick-area {
  bottom: auto;
  top: calc(40vh + 16px);
  left: 16px;
  transform: none;
  width: 120px;
  height: 120px;
  opacity: 1;
}

/* Phase 2 RL: left side, same as examples */
.app.phase-teach[data-teach-mode="rl"] .joystick-area {
  left: 16px;
  transform: none;
  top: calc(40vh + 16px);
}

/* Phase 3: ghost, bottom-center, smaller */
.app.phase-perform .joystick-area {
  bottom: calc(60px + var(--safe-bottom));
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 120px;
  opacity: 0.55;
}

.joystick-canvas {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  touch-action: none;
}

/* Noise ring for RL mode */
.noise-ring {
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  opacity: 0;
  pointer-events: none;
  transition: all var(--transition-fast);
}

.app[data-teach-mode="rl"] .noise-ring {
  opacity: 0.5;
}

/* ============================================================
   Teach panel
   ============================================================ */
.teach-panel {
  position: fixed;
  top: 40vh;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 80;
  background: var(--bg);
  border-top: 1px solid var(--glass-border);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 0 16px 24px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
  transition: opacity var(--transition), transform var(--transition);
}

.app.phase-teach .teach-panel {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

/* Teach tabs */
.teach-tabs {
  display: flex;
  gap: 0;
  margin: 12px 0;
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-pill);
  overflow: hidden;
  border: 1px solid var(--glass-border);
}

.teach-tab {
  flex: 1;
  padding: 8px 0;
  font-size: 13px;
  color: var(--text-dim);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.teach-tab.active {
  color: var(--accent);
  background: var(--accent-dim);
}

/* Teach content sections */
.teach-content {
  transition: opacity var(--transition-fast);
}

.teach-layout {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-left: 136px; /* room for joystick on left */
}

.app.phase-teach[data-teach-mode="rl"] .teach-layout {
  padding-left: 136px;
}

/* Preset grid */
.preset-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.preset-thumb {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 6px;
  background: rgba(255, 255, 255, 0.03);
  border: 1.5px solid var(--glass-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-dim);
  font-size: 11px;
}

.preset-thumb.selected {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--accent);
}

.preset-thumb:hover {
  border-color: var(--text-dim);
}

.preset-canvas {
  width: 56px;
  height: 56px;
  border-radius: 4px;
  background: var(--bg);
}

/* Teach actions */
.teach-actions {
  display: flex;
  gap: 8px;
}

/* Minimap */
.minimap {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  align-self: center;
}

/* Fine-tune */
.fine-tune {
  margin-top: 4px;
}

.fine-tune summary {
  font-size: 12px;
  color: var(--text-dim);
  cursor: pointer;
  padding: 6px 0;
}

.param-sliders {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 12px;
  max-height: 200px;
  overflow-y: auto;
}

.param-slider-row {
  display: flex;
  align-items: center;
  gap: 4px;
}

.param-slider-row label {
  font-size: 10px;
  color: var(--text-dim);
  width: 50px;
  flex-shrink: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.param-slider-row input[type="range"] {
  flex: 1;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 2px;
  outline: none;
}

.param-slider-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}

/* RL sub-mode */
#teach-rl {
  padding-left: 136px;
}

.rl-hint {
  text-align: center;
  color: var(--text-dim);
  font-size: 13px;
  margin: 12px 0;
}

.thumb-icon {
  font-size: 16px;
}

.rl-buttons {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 16px;
}

.rl-btn {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 2px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: 2px;
  gap: 0;
}

.rl-icon {
  font-size: 28px;
  line-height: 1;
}

.rl-btn.up {
  border-color: rgba(0, 200, 160, 0.4);
  color: #00c8a0;
  background: rgba(0, 200, 160, 0.08);
}

.rl-btn.up:hover, .rl-btn.up:active {
  background: rgba(0, 200, 160, 0.2);
  box-shadow: 0 0 20px rgba(0, 200, 160, 0.3);
}

.rl-btn.down {
  border-color: rgba(220, 60, 20, 0.4);
  color: #dc3c14;
  background: rgba(220, 60, 20, 0.08);
}

.rl-btn.down:hover, .rl-btn.down:active {
  background: rgba(220, 60, 20, 0.2);
  box-shadow: 0 0 20px rgba(220, 60, 20, 0.3);
}

/* Synth section */
.synth-section {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.synth-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.synth-row label {
  font-size: 12px;
  color: var(--text-dim);
  min-width: 80px;
}

.synth-row input[type="range"] {
  flex: 1;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 2px;
  outline: none;
}

.synth-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}

.synth-row select {
  flex: 1;
  padding: 4px 8px;
  font-size: 12px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  outline: none;
}

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

/* Teach status bar */
.teach-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 8px;
  border-top: 1px solid var(--glass-border);
}

/* Done button */
.done-btn {
  display: block;
  width: 100%;
  padding: 12px;
  margin-top: 8px;
  font-size: 14px;
  color: var(--bg);
  background: var(--accent);
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.done-btn:hover, .done-btn:active {
  background: #ff8833;
}

/* ============================================================
   Buttons (shared)
   ============================================================ */
.action-btn {
  padding: 8px 16px;
  font-size: 13px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.action-btn:hover, .action-btn:active {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--text-dim);
}

.action-btn.primary {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

.action-btn.primary:hover {
  background: rgba(255, 106, 0, 0.3);
}

.action-btn.accent {
  background: rgba(255, 106, 0, 0.12);
  border-color: rgba(255, 106, 0, 0.3);
  color: var(--accent);
}

.action-btn.accent:hover {
  background: rgba(255, 106, 0, 0.2);
}

.action-btn.dim {
  color: var(--text-dim);
  border-color: transparent;
  background: transparent;
}

.action-btn.small {
  padding: 4px 10px;
  font-size: 11px;
}

/* Train button pulse animation */
.action-btn.accent.pulse {
  animation: trainPulse 1.5s ease-in-out infinite;
}

@keyframes trainPulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--accent-glow); }
  50%      { box-shadow: 0 0 12px 4px var(--accent-glow); }
}

/* ============================================================
   Edit pill (Phase 3)
   ============================================================ */
.edit-pill-wrap {
  position: fixed;
  bottom: calc(16px + var(--safe-bottom));
  left: 50%;
  transform: translateX(-50%);
  z-index: 80;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.app.phase-perform .edit-pill-wrap {
  opacity: 1;
  pointer-events: auto;
}

.edit-pill {
  padding: 10px 28px;
  font-size: 13px;
  color: var(--text);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.edit-pill:hover {
  border-color: var(--text-dim);
}

/* Audio control (Phase 3, synth mode) */
.audio-control {
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  transition: opacity var(--transition);
}

.audio-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  background: transparent;
  color: var(--text);
  font-size: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.audio-vol {
  width: 60px;
  height: 3px;
  -webkit-appearance: none;
  appearance: none;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 2px;
  outline: none;
}

.audio-vol::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}

/* ============================================================
   Phase visibility rules
   ============================================================ */

/* Explore: show prompts, CTAs; hide teach panel, edit pill */
.app.phase-explore .teach-panel,
.app.phase-explore .edit-pill-wrap,
.app.phase-explore .audio-control { opacity: 0; pointer-events: none; }

/* Teach: hide prompts, CTAs, edit pill */
.app.phase-teach .explore-prompt,
.app.phase-teach .explore-ctas,
.app.phase-teach .edit-pill-wrap,
.app.phase-teach .audio-control { opacity: 0; pointer-events: none; }

/* Perform: hide prompts, CTAs, teach panel */
.app.phase-perform .explore-prompt,
.app.phase-perform .explore-ctas,
.app.phase-perform .teach-panel { opacity: 0; pointer-events: none; }

/* Perform phase: auto-fade idle elements */
.app.phase-perform.idle .edit-pill-wrap {
  opacity: 0.1;
}
.app.phase-perform.idle .heatmap-strip {
  opacity: 0.15;
}
.app.phase-perform.idle .phase-dots {
  opacity: 0.15;
}
.app.phase-perform.idle .mode-pill {
  opacity: 0.15;
}

/* ============================================================
   Back button
   ============================================================ */
.back-btn {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 110;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  color: var(--text);
  text-decoration: none;
  font-size: 18px;
  line-height: 1;
  transition: all var(--transition-fast);
}

.back-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ============================================================
   RL key hints
   ============================================================ */
.key-hint {
  font-family: inherit;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  text-align: center;
  line-height: 1;
  margin-top: -1px;
}

/* ============================================================
   Follow mode
   ============================================================ */
.follow-indicator {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--accent);
  text-shadow: 0 0 8px var(--accent-glow);
  pointer-events: none;
}

.follow-pill {
  position: absolute;
  bottom: -24px;
  left: 50%;
  transform: translateX(-50%);
  padding: 2px 10px;
  font-size: 10px;
  color: var(--text-dim);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.follow-pill:hover {
  border-color: var(--text-dim);
}

.follow-pill.active {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-dim);
}

/* ============================================================
   Hidden utility
   ============================================================ */
.hidden {
  display: none !important;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (min-width: 600px) {
  .teach-layout {
    padding-left: 140px;
  }

  .preset-grid {
    grid-template-columns: repeat(3, 1fr);
    max-width: 400px;
  }

  .rl-buttons {
    gap: 60px;
  }
}

@media (max-width: 380px) {
  .preset-canvas {
    width: 44px;
    height: 44px;
  }

  .teach-layout {
    padding-left: 110px;
  }

  .cta-pill {
    padding: 8px 14px;
    font-size: 13px;
  }
}