/* ==========================================================================
   VoiceLab 2.0 Ultimate - Pro Studio Sidebar & Bauhaus Block Design
   Inspired by Professional Audio Workstations & Modern Design Systems
   ========================================================================== */

:root {
  --bg-primary: #121212;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #242424;
  --bg-card: #1c1c1c;
  --bg-card-hover: rgba(26, 38, 58, 0.85);
  --bg-sidebar: #161616;
  
  --border-subtle: #333333;
  --border-medium: #555555;
  --border-focus: #3b82f6;

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* Voice Categories */
  --color-low: #c41e14;
  --color-caution: #f59e0b;
  --color-positive: #f5a300;
  --color-high: #38bdf8;
  --color-cooldown: #06b6d4;
  --color-game: #a855f7;
  --color-piano: #ec4899;
  
  --accent-primary: #c41e14;
  --accent-primary-hover: #a3180f;
  --accent-glow: rgba(59, 130, 246, 0.25);

  --font-display: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: ui-monospace, 'Cascadia Mono', 'Liberation Mono', Menlo, monospace;

  --sidebar-width: 256px;
  --sidebar-collapsed-width: 68px;
  --header-height: 58px;

  --radius-sm: 0px;
  --radius-md: 0px;
  --radius-lg: 0px;
  --radius-full: 0px;

  --shadow-sm: 3px 3px 0 #000;
  --shadow-md: 5px 5px 0 #000;
  --shadow-lg: 8px 8px 0 #000;
  
  --transition-fast: 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.08) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(16, 185, 129, 0.06) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text-primary);
  font-family: var(--font-sans);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 1024px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.25s ease, color 0.25s ease;
}

/* ==========================================================================
   HEADER WITH PERSISTENT GLOBAL PITCH HUD
   ========================================================================== */
.app-header {
  background: var(--bg-secondary);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  height: var(--header-height);
  padding: 0 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  z-index: 100;
  flex-shrink: 0;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.sidebar-toggle-btn {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.sidebar-toggle-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

.brand-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--accent-primary), var(--color-positive));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 2px 10px rgba(5, 150, 105, 0.35);
}

.brand-title h1 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 6px;
}

.brand-badge {
  font-size: 0.62rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 1px 6px;
  border-radius: var(--radius-full);
  background: rgba(16, 185, 129, 0.18);
  color: var(--color-positive);
  border: 1px solid rgba(16, 185, 129, 0.35);
  white-space: nowrap;
}

/* Persistent Mini-Pitch HUD in Header */
.global-pitch-hud {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-full);
  padding: 4px 12px;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}
.global-pitch-hud:hover {
  background: var(--bg-card-hover);
  border-color: var(--color-positive);
}

.hud-pitch-val {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-primary);
  min-width: 60px;
  text-align: right;
}

.hud-note-pill {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
}

.hud-target-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background: rgba(100, 116, 139, 0.2);
  color: var(--text-muted);
}
.hud-target-badge.active {
  background: rgba(16, 185, 129, 0.25);
  color: var(--color-positive);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
}

.hud-vu-mini {
  width: 32px;
  height: 4px;
  background: var(--bg-secondary);
  border-radius: 2px;
  overflow: hidden;
}
.hud-vu-fill {
  height: 100%;
  width: 0%;
  background: var(--color-positive);
  transition: width 0.06s ease;
}

/* Header Controls */
.header-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.lang-switcher-group {
  display: flex;
  align-items: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 2px;
  gap: 2px;
}

.lang-pill {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.74rem;
  font-weight: 700;
  padding: 4px 7px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.lang-pill:hover { color: var(--text-primary); }
.lang-pill.active {
  background: var(--accent-primary);
  color: #ffffff;
}

.sidetone-control-wrap {
  display: flex;
  align-items: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 4px 8px;
}

.sidetone-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.sidetone-btn.active { color: var(--color-positive); }

.mic-select-group {
  display: flex;
  align-items: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 2px 6px;
  gap: 4px;
}

.select-wrapper select {
  background: transparent;
  color: var(--text-primary);
  border: none;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  padding: 4px;
  outline: none;
  cursor: pointer;
  max-width: 140px;
}
.select-wrapper select option {
  background: #111827;
  color: var(--text-primary);
}

.icon-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 6px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.icon-btn:hover { color: var(--text-primary); background: rgba(255, 255, 255, 0.08); }

.btn-primary {
  background: var(--accent-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  padding: 7px 14px;
  font-size: 0.82rem;
  font-weight: 700;
  font-family: var(--font-sans);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
  box-shadow: 0 2px 10px rgba(59, 130, 246, 0.35);
}
.btn-primary:hover { background: var(--accent-primary-hover); transform: translateY(-1px); }
.btn-primary.btn-active { background: #dc2626; box-shadow: 0 2px 10px rgba(220, 38, 38, 0.4); }
.btn-primary:disabled, .btn-secondary:disabled, .btn-record:disabled {
  cursor: wait;
  opacity: 0.65;
  transform: none;
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn-secondary:hover { background: var(--bg-card-hover); border-color: var(--text-muted); }

/* ==========================================================================
   APP BODY LAYOUT: PRO STUDIO SIDEBAR + WORKSPACE CANVAS
   ========================================================================== */
.app-studio-layout {
  display: flex;
  height: calc(100vh - var(--header-height));
  width: 100vw;
  overflow: hidden;
}

/* Sidebar Navigation */
.app-sidebar {
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 12px 8px;
  overflow-y: auto;
  flex-shrink: 0;
  transition: width var(--transition-normal), transform var(--transition-normal);
  z-index: 90;
}

.app-sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
}

.sidebar-nav-section {
  margin-bottom: 16px;
}

.sidebar-group-label {
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 6px 10px 4px 10px;
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.app-sidebar.collapsed .sidebar-group-label {
  display: none;
}

.sidebar-nav-btn {
  width: 100%;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 8px 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: left;
  margin-bottom: 2px;
  transition: all var(--transition-fast);
  white-space: nowrap;
  overflow: hidden;
}

.sidebar-nav-btn svg {
  flex-shrink: 0;
}

.sidebar-nav-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

.sidebar-nav-btn.active {
  background: rgba(59, 130, 246, 0.15);
  border-color: rgba(59, 130, 246, 0.4);
  color: #60a5fa;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.2);
}
.app-sidebar.collapsed .sidebar-nav-btn span {
  display: none;
}

.sidebar-footer-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px;
  text-align: center;
  margin-top: auto;
}
.app-sidebar.collapsed .sidebar-footer-card {
  display: none;
}

/* Main Content Workspace */
.app-main-workspace {
  flex: 1;
  overflow-y: auto;
  padding: 18px 24px 40px 24px;
  position: relative;
  display: flex;
  flex-direction: column;
}

.tab-panel {
  display: none;
  animation: fadeIn 0.18s ease-in-out;
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
}
.tab-panel.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Cards with Glassmorphism */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: border-color var(--transition-fast);
}
.card:hover {
  border-color: rgba(255, 255, 255, 0.14);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.card-title {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Dashboard Grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 16px;
  align-items: stretch;
  margin-bottom: 16px;
}
@media (max-width: 1080px) { .dashboard-grid { grid-template-columns: 1fr; } }

/* Live Pitch Hero & Audio Aura */
.pitch-hero-card {
  text-align: center;
  padding: 20px 16px;
  position: relative;
  overflow: hidden;
}

.frequency-display {
  margin: 10px 0;
  position: relative;
  display: inline-block;
  padding: 10px 20px;
}

.audio-aura {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.15) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.audio-aura.active {
  opacity: 1;
  animation: pulseAura 1.5s infinite ease-in-out;
}

@keyframes pulseAura {
  0%, 100% { transform: translate(-50%, -50%) scale(0.9); opacity: 0.4; }
  50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.9; }
}

.frequency-value-wrap {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
}

.frequency-value {
  font-family: var(--font-mono);
  font-size: 3.6rem;
  font-weight: 800;
  line-height: 1;
  color: var(--text-primary);
  min-height: 3.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  text-shadow: 0 0 20px rgba(255, 255, 255, 0.15);
}

.frequency-unit { font-size: 1.2rem; font-weight: 600; color: var(--text-muted); }

.note-display {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 10px;
}

.note-tag {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-medium);
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: var(--radius-md);
  color: var(--text-primary);
  min-width: 60px;
}

.cents-tag { font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-secondary); }

.category-badge {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--bg-tertiary);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.category-badge.range-low { background: rgba(239, 68, 68, 0.15); color: var(--color-low); border-color: rgba(239, 68, 68, 0.4); }
.category-badge.range-below { background: rgba(245, 158, 11, 0.15); color: var(--color-caution); border-color: rgba(245, 158, 11, 0.4); }
.category-badge.range-inside { background: rgba(16, 185, 129, 0.2); color: var(--color-positive); border-color: rgba(16, 185, 129, 0.5); box-shadow: 0 0 14px rgba(16, 185, 129, 0.25); }
.category-badge.range-above { background: rgba(56, 189, 248, 0.15); color: var(--color-high); border-color: rgba(56, 189, 248, 0.4); }

.quality-badges-row { display: flex; justify-content: center; gap: 8px; margin-top: 8px; }
.alert-badge { font-size: 0.72rem; font-weight: 600; padding: 2px 8px; border-radius: var(--radius-full); display: inline-flex; align-items: center; gap: 4px; }
.alert-badge.fry-active { background: rgba(239, 68, 68, 0.2); color: #ef4444; border: 1px solid rgba(239, 68, 68, 0.5); }
.alert-badge.stable { background: rgba(16, 185, 129, 0.12); color: #10b981; }

.target-gauge-section { background: var(--bg-secondary); border-radius: var(--radius-md); padding: 8px 10px; border: 1px solid var(--border-subtle); margin-top: 10px; }
.gauge-labels { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); align-items: end; font-size: 0.64rem; line-height: 1.2; color: var(--text-muted); margin-bottom: 5px; }
.gauge-labels span { min-width: 0; text-align: center; overflow-wrap: anywhere; }
.gauge-labels span:first-child { text-align: left; }
.gauge-labels span:last-child { text-align: right; }
.gauge-track { height: 12px; background: var(--bg-tertiary); border-radius: var(--radius-full); position: relative; overflow: hidden; display: flex; }
.gauge-zone { height: 100%; }
.gauge-zone.range-low { width: 28%; background: rgba(239, 68, 68, 0.4); }
.gauge-zone.range-below { width: 18%; background: rgba(245, 158, 11, 0.4); }
.gauge-zone.range-inside { width: 32%; background: rgba(16, 185, 129, 0.65); }
.gauge-zone.range-above { width: 22%; background: rgba(56, 189, 248, 0.4); }

.gauge-needle { position: absolute; top: 0; bottom: 0; width: 3px; background: #ffffff; border-radius: 2px; transform: translateX(-50%); left: 0%; transition: left 0.08s ease-out; box-shadow: 0 0 6px rgba(255,255,255,0.8); }
.vu-meter-wrap { margin-top: 10px; display: flex; align-items: center; gap: 8px; }
.vu-label { font-size: 0.72rem; color: var(--text-muted); min-width: 40px; }
.vu-bar-bg { flex: 1; height: 5px; background: var(--bg-tertiary); border-radius: 3px; overflow: hidden; }
.vu-bar-fill { height: 100%; width: 0%; background: linear-gradient(90deg, #10b981 70%, #f59e0b 90%, #ef4444 100%); transition: width 0.06s ease-out; }

.canvas-container { position: relative; flex: 1; min-height: 260px; background: var(--bg-secondary); border-radius: var(--radius-md); border: 1px solid var(--border-subtle); overflow: hidden; }
canvas#pitchCanvas { width: 100%; height: 100%; display: block; }

/* Features Grid */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.stat-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin-bottom: 12px; }
.stat-box { background: var(--bg-secondary); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 8px; text-align: center; }
.stat-label { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; margin-bottom: 2px; }
.stat-number { font-family: var(--font-mono); font-size: 1.25rem; font-weight: 700; color: var(--text-primary); }
.stat-unit { font-size: 0.74rem; font-weight: 400; color: var(--text-muted); }

.target-percent-wrap { background: var(--bg-secondary); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 10px; }
.target-percent-header { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 5px; }
.target-percent-val { font-family: var(--font-mono); font-size: 1.15rem; font-weight: 700; color: var(--color-positive); }
.progress-bar-bg { height: 7px; background: var(--bg-tertiary); border-radius: 4px; overflow: hidden; }
.progress-bar-fill { height: 100%; width: 0%; background: var(--color-positive); border-radius: 4px; transition: width 0.3s ease; }

.resonance-meter-wrap { background: var(--bg-secondary); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 12px; margin-bottom: 10px; }
.resonance-labels { display: flex; justify-content: space-between; font-size: 0.74rem; font-weight: 500; margin-bottom: 5px; }
.resonance-bar-bg { height: 10px; background: var(--bg-tertiary); border-radius: var(--radius-full); overflow: hidden; }
.resonance-bar-fill { height: 100%; width: 50%; background: linear-gradient(90deg, #64748b 0%, #3b82f6 50%, #10b981 100%); transition: width 0.1s ease-out; }
.spectral-balance-badge { font-family: var(--font-mono); font-size: 0.72rem; font-weight: 700; color: var(--color-positive); }
.resonance-tip { font-size: 0.74rem; color: var(--text-secondary); line-height: 1.35; margin-top: 8px; background: rgba(59, 130, 246, 0.08); border-left: 3px solid var(--accent-primary); padding: 6px 10px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }

.record-controls { display: flex; gap: 8px; align-items: center; margin-bottom: 10px; flex-wrap: wrap; }
.btn-record { background: var(--bg-secondary); border: 1px solid #ef4444; color: #ef4444; padding: 7px 12px; border-radius: var(--radius-md); font-weight: 600; font-size: 0.8rem; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; }
.btn-record:hover { background: rgba(239, 68, 68, 0.15); }
.btn-record.recording { background: #ef4444; color: white; }

audio#playbackAudio { width: 100%; height: 34px; border-radius: var(--radius-md); outline: none; }

.tone-generator-row { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-bottom: 10px; background: var(--bg-secondary); padding: 8px; border-radius: var(--radius-md); border: 1px solid var(--border-subtle); }
.tone-btn { background: var(--bg-tertiary); border: 1px solid var(--border-medium); color: var(--text-primary); font-family: var(--font-mono); font-size: 0.78rem; font-weight: 600; padding: 5px 8px; border-radius: var(--radius-sm); cursor: pointer; }
.tone-btn:hover { background: var(--bg-card-hover); border-color: var(--color-positive); color: var(--color-positive); }
.tone-btn.active { background: var(--color-positive); color: #0b1c14; border-color: var(--color-positive); font-weight: 700; }

.phrase-box { background: var(--bg-secondary); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 12px; margin-bottom: 10px; min-height: 80px; display: flex; flex-direction: column; justify-content: center; }
.phrase-category { font-size: 0.68rem; text-transform: uppercase; color: var(--text-muted); letter-spacing: 0.05em; margin-bottom: 3px; }
.phrase-text { font-size: 0.95rem; font-weight: 500; color: var(--text-primary); line-height: 1.35; }
.phrase-hint { font-size: 0.74rem; color: var(--color-caution); margin-top: 4px; }

/* Voice Quality & Diagnostics Layout */
.quality-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 1024px) { .quality-layout { grid-template-columns: 1fr; } }
.quality-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; margin: 14px 0; }
.quality-card-stat { background: var(--bg-secondary); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 12px; text-align: center; }
.quality-val { font-family: var(--font-mono); font-size: 1.8rem; font-weight: 800; color: var(--text-primary); margin-bottom: 2px; }
.quality-label { font-size: 0.76rem; font-weight: 700; text-transform: uppercase; color: var(--text-secondary); }
.quality-hint { font-size: 0.68rem; color: var(--text-muted); margin-top: 4px; }
.tempo-display-box { background: var(--bg-secondary); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 14px; display: flex; align-items: center; justify-content: space-between; margin-top: 10px; }
.tempo-val { font-family: var(--font-mono); font-size: 2.2rem; font-weight: 800; color: var(--accent-primary); }
.standard-reading-box { align-items: flex-start; gap: 18px; }
.standard-reading-text { max-width: 620px; margin: 8px 0; color: var(--text-primary); font-size: 0.8rem; line-height: 1.5; }
.histo-container { position: relative; height: 220px; background: var(--bg-secondary); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); overflow: hidden; }
canvas#histogramCanvas { width: 100%; height: 100%; display: block; }

/* Adaptive coaching workspace */
.coach-layout { display: grid; grid-template-columns: minmax(0, 1fr) 350px; gap: 16px; align-items: start; }
.coach-main-card { padding: 22px; min-height: 620px; }
.coach-sidebar { display: flex; flex-direction: column; gap: 14px; }
.section-kicker { display: block; margin-bottom: 4px; color: var(--accent-primary); font-size: 0.68rem; font-weight: 800; letter-spacing: 0.09em; }
.coach-main-card h2, .report-card h2 { font-size: 1.15rem; margin-bottom: 4px; }
.coach-main-card p, .report-card p { color: var(--text-secondary); font-size: 0.8rem; line-height: 1.45; }
.coach-stage { margin-top: 18px; padding: 18px; border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); background: color-mix(in srgb, var(--bg-secondary) 88%, transparent); }
.coach-stage-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 14px; margin-bottom: 14px; }
.coach-stage h3, .coach-sidebar h3 { font-size: 0.92rem; margin-bottom: 4px; }
.privacy-chip { display: inline-flex; white-space: nowrap; align-items: center; border: 1px solid rgba(16, 185, 129, 0.35); color: var(--color-positive); background: rgba(16, 185, 129, 0.08); padding: 3px 8px; border-radius: var(--radius-full); font-size: 0.68rem; font-weight: 700; }
.safety-check-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-bottom: 16px; }
.check-tile { display: flex; align-items: flex-start; gap: 8px; padding: 10px; border: 1px solid var(--border-subtle); border-radius: var(--radius-md); background: var(--bg-tertiary); color: var(--text-secondary); font-size: 0.78rem; line-height: 1.35; }
.check-tile.urgent { border-color: rgba(239, 68, 68, 0.28); }
.check-tile input, .settings-check input { accent-color: var(--accent-primary); margin-top: 2px; }
.field-stack { display: flex; flex-direction: column; gap: 5px; color: var(--text-secondary); font-size: 0.76rem; font-weight: 600; }
.field-stack input, .field-stack select, .field-stack textarea, .report-controls select { width: 100%; border: 1px solid var(--border-medium); border-radius: var(--radius-md); background: var(--bg-tertiary); color: var(--text-primary); padding: 8px 10px; font: inherit; resize: vertical; }
.rating-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 12px 0 16px; }
.rating-grid label { display: grid; grid-template-columns: 1fr auto; gap: 5px 8px; padding: 10px; background: var(--bg-secondary); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); color: var(--text-secondary); font-size: 0.76rem; font-weight: 700; }
.rating-grid input { grid-column: 1 / -1; width: 100%; accent-color: var(--accent-primary); }
.rating-grid output { color: var(--text-primary); font-family: var(--font-mono); font-size: 0.95rem; }
.coach-safety-message { padding: 12px; margin-bottom: 12px; border-radius: var(--radius-md); border: 1px solid rgba(245, 158, 11, 0.5); background: rgba(245, 158, 11, 0.1); color: var(--text-primary); font-size: 0.8rem; line-height: 1.45; }
.coach-safety-message.stop { border-color: rgba(239, 68, 68, 0.55); background: rgba(239, 68, 68, 0.1); }
.coach-environment-message { margin: -6px 0 14px; padding: 9px 11px; border-left: 4px solid var(--color-caution); background: rgba(245, 158, 11, 0.08); color: var(--text-secondary); font-size: 0.76rem; line-height: 1.4; }
.coach-caution-actions { display: flex; justify-content: flex-end; gap: 8px; margin: -3px 0 12px; }
.coach-primary-action { width: 100%; justify-content: center; padding: 11px 18px; }
.focus-compass { min-width: 0; margin: 18px 0; padding: 15px; border: 2px solid var(--border-medium); background: var(--bg-secondary); }
.focus-compass legend { padding: 0 7px; color: var(--text-primary); font-family: var(--font-display); font-size: 0.94rem; font-weight: 800; letter-spacing: 0.02em; }
.focus-compass > p { margin: 0 0 12px; }
.focus-compass > .focus-compass-note { margin-top: -5px; color: var(--text-muted); font-size: 0.72rem; }
.focus-option-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(135px, 1fr)); gap: 8px; }
.focus-option { position: relative; display: flex; min-height: 58px; cursor: pointer; }
.focus-option input { position: absolute; inline-size: 1px; block-size: 1px; opacity: 0; }
.focus-option span { display: flex; width: 100%; align-items: center; padding: 10px; border: 2px solid var(--border-subtle); background: var(--bg-tertiary); color: var(--text-secondary); font-size: 0.74rem; font-weight: 750; line-height: 1.25; transition: border-color var(--transition-fast), background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast); }
.focus-option:hover span { border-color: var(--accent-primary); color: var(--text-primary); transform: translateY(-1px); }
.focus-option input:focus-visible + span { outline: 3px solid color-mix(in srgb, var(--accent-primary) 45%, transparent); outline-offset: 2px; }
.focus-option input:checked + span { border-color: var(--accent-primary); background: color-mix(in srgb, var(--accent-primary) 18%, var(--bg-tertiary)); color: var(--text-primary); box-shadow: inset 5px 0 0 var(--accent-primary); }
.focus-detail-card { margin-top: 12px; padding: 13px; border: 1px solid var(--border-medium); background: color-mix(in srgb, var(--bg-tertiary) 82%, transparent); }
.focus-detail-heading, .active-focus-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.focus-detail-heading strong, .active-focus-heading strong { color: var(--text-primary); font-size: 0.9rem; }
.focus-example { margin-top: 9px; padding: 9px 10px; border-left: 3px solid var(--accent-primary); background: var(--bg-secondary); color: var(--text-secondary); font-size: 0.78rem; line-height: 1.45; }
.focus-mode-badge { display: inline-flex; align-items: center; min-height: 24px; padding: 3px 8px; border: 1px solid var(--border-medium); background: var(--bg-secondary); color: var(--accent-primary); font-size: 0.65rem; font-weight: 800; letter-spacing: 0.04em; text-transform: uppercase; white-space: nowrap; }
.focus-poles { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 8px; margin: 9px 0; padding: 8px 10px; border: 1px dashed var(--border-medium); color: var(--text-secondary); font-size: 0.73rem; text-align: center; }
.focus-cue-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(130px, 0.45fr); gap: 9px; align-items: end; margin-top: 12px; }
.focus-cue-text { grid-column: 1 / -1; }
.focus-cue-grid button { justify-self: start; }
.focus-cue-status { align-self: center; color: var(--color-positive); font-size: 0.72rem; }
.hygiene-reference-card { margin: 14px 0; border: 1px solid var(--border-medium); background: var(--bg-tertiary); color: var(--text-secondary); }
.hygiene-reference-card summary { display: flex; flex-direction: column; gap: 2px; padding: 11px 13px; cursor: pointer; color: var(--text-primary); font-size: 0.8rem; font-weight: 750; }
.hygiene-reference-card summary small { color: var(--text-muted); font-size: 0.68rem; font-weight: 500; line-height: 1.35; }
.hygiene-reference-card ul { margin: 0; padding: 2px 32px 10px; color: var(--text-secondary); font-size: 0.74rem; line-height: 1.5; }
.hygiene-reference-card > p { margin: 0 13px 12px; padding-top: 9px; border-top: 1px solid var(--border-subtle); color: var(--text-muted); }
.hygiene-reference-card.compact { margin: 14px 0 0; }
.active-focus-card { margin-bottom: 13px; padding: 13px; border: 2px solid var(--accent-primary); background: color-mix(in srgb, var(--accent-primary) 8%, var(--bg-secondary)); }
.active-focus-card > p { margin: 8px 0 10px; color: var(--text-secondary); }
.coach-focus-signal { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 7px 12px; align-items: center; padding: 9px 10px; border: 1px solid var(--border-subtle); background: var(--bg-tertiary); color: var(--text-secondary); font-size: 0.72rem; }
.coach-focus-signal > strong { color: var(--text-primary); font-family: var(--font-mono); font-size: 0.82rem; }
.coach-focus-signal canvas { grid-column: 1 / -1; width: 100%; height: 92px; border: 1px solid var(--border-subtle); background: #080d16; }
.coach-focus-level-track { grid-column: 1 / -1; height: 10px; overflow: hidden; border: 1px solid var(--border-medium); background: var(--bg-secondary); }
.coach-focus-level-track span { display: block; width: 0; height: 100%; background: var(--accent-primary); transition: width 80ms linear; }
.coach-sample-strip { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px 12px; align-items: center; margin: 12px 0; padding: 11px; border: 1px solid var(--border-subtle); border-radius: var(--radius-md); background: var(--bg-secondary); }
.coach-sample-strip strong { display: block; color: var(--text-primary); font-size: 0.78rem; }
.coach-sample-strip small { display: block; margin-top: 2px; color: var(--text-muted); font-size: 0.68rem; line-height: 1.35; }
.coach-sample-strip audio { grid-column: 1 / -1; width: 100%; height: 34px; }
.coach-duration { color: var(--text-muted); font-size: 0.72rem; }
.coach-duration strong { margin-left: 4px; color: var(--text-primary); font-family: var(--font-mono); }
.early-stop-note { margin: -7px 0 14px; }
.danger-text { color: #f87171; }
.fit-options { display: flex; gap: 10px; padding: 12px; margin: 12px 0; border: 1px solid var(--border-subtle); border-radius: var(--radius-md); }
.fit-options legend { padding: 0 5px; color: var(--text-secondary); font-size: 0.76rem; font-weight: 700; }
.fit-options label { display: inline-flex; align-items: center; gap: 5px; color: var(--text-primary); font-size: 0.78rem; }
.fit-options input { accent-color: var(--accent-primary); }
.coach-result { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 14px; border-color: rgba(16, 185, 129, 0.35); }
.result-icon { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; background: rgba(16, 185, 129, 0.16); color: var(--color-positive); font-size: 1.3rem; font-weight: 800; }
.plan-card p { margin: 4px 0 10px; color: var(--text-muted); font-size: 0.72rem; }
.plan-actions, .report-actions { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 10px; }
.import-preview { margin-top: 10px; padding: 10px; border: 1px solid var(--border-subtle); border-radius: var(--radius-md); background: var(--bg-tertiary); color: var(--text-secondary); font-size: 0.74rem; line-height: 1.4; }
.practice-rhythm-card { display: flex; flex-direction: column; gap: 3px; padding: 14px; border-radius: var(--radius-lg); border: 1px solid rgba(59, 130, 246, 0.3); background: linear-gradient(135deg, rgba(59, 130, 246, 0.13), rgba(16, 185, 129, 0.08)); }
.practice-rhythm-card span { color: var(--text-secondary); font-size: 0.72rem; font-weight: 700; text-transform: uppercase; }
.practice-rhythm-card strong { font-family: var(--font-mono); color: var(--accent-primary); font-size: 1.55rem; }
.practice-rhythm-card small { color: var(--text-muted); line-height: 1.35; }
@media (max-width: 1120px) { .coach-layout { grid-template-columns: minmax(0, 1fr) 300px; } }
.workout-header-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.workout-step-pill { background: var(--bg-tertiary); border: 1px solid var(--border-medium); padding: 4px 12px; border-radius: var(--radius-full); font-size: 0.78rem; font-weight: 700; color: var(--accent-primary); }
.workout-timer-box { text-align: center; margin: 16px 0; }
.workout-timer-clock { font-family: var(--font-mono); font-size: 3.6rem; font-weight: 800; color: var(--text-primary); line-height: 1; }
.workout-instruction-card { background: var(--bg-secondary); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 18px; margin-bottom: 16px; }
.workout-instruction-title { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; color: var(--color-positive); margin-bottom: 6px; }
.workout-instruction-desc { font-size: 0.92rem; color: var(--text-primary); line-height: 1.45; margin-bottom: 10px; }
.workout-instruction-hint { font-size: 0.8rem; color: var(--text-secondary); background: var(--bg-tertiary); padding: 8px 12px; border-radius: var(--radius-md); border-left: 3px solid var(--color-caution); }
.workout-controls-row { display: flex; gap: 10px; justify-content: center; }

.streak-card { background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(16, 185, 129, 0.15)); border: 1px solid rgba(245, 158, 11, 0.3); border-radius: var(--radius-lg); padding: 14px; text-align: center; margin-bottom: 14px; }
.streak-number { font-family: var(--font-mono); font-size: 1.8rem; font-weight: 800; color: var(--color-caution); }
.workout-steps-checklist { display: flex; flex-direction: column; gap: 6px; }
.workout-step-item { background: var(--bg-secondary); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 8px 10px; display: flex; align-items: center; gap: 8px; font-size: 0.8rem; }
.workout-step-item.active { border-color: var(--accent-primary); background: rgba(59, 130, 246, 0.12); }
.workout-step-item.completed { border-color: var(--color-positive); color: var(--color-positive); }
@media (max-width: 1024px) {
  .coach-layout { grid-template-columns: 1fr; }
  .coach-sidebar { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .coach-sidebar > :last-child { grid-column: 1 / -1; }
}
@media (max-width: 700px) {
  .focus-cue-grid { grid-template-columns: 1fr; }
  .focus-cue-text { grid-column: auto; }
  .coach-caution-actions, .workout-controls-row { flex-direction: column; }
}

/* Teleprompter Layout */
.teleprompter-container { display: grid; grid-template-columns: 1fr 300px; gap: 16px; }
@media (max-width: 1024px) { .teleprompter-container { grid-template-columns: 1fr; } }
.teleprompter-reader-card { padding: 20px; display: flex; flex-direction: column; min-height: 480px; }
.teleprompter-text-window { flex: 1; background: rgba(7, 10, 16, 0.9); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 24px; font-size: 1.3rem; line-height: 1.8; overflow-y: auto; max-height: 360px; }
.tele-word { display: inline; padding: 2px 4px; border-radius: 4px; transition: all 0.15s ease; color: #94a3b8; }
.tele-word.current { background: rgba(255, 255, 255, 0.2); color: #ffffff; text-decoration: underline; }
.tele-word.target { background: rgba(16, 185, 129, 0.25); color: #34d399; font-weight: 600; }
.tele-word.low { background: rgba(239, 68, 68, 0.2); color: #f87171; }
.teleprompter-status-bar { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; padding: 8px 14px; background: var(--bg-secondary); border-radius: var(--radius-md); border: 1px solid var(--border-subtle); }

/* 🎮 Flappy Voice Game */
.game-layout { display: grid; grid-template-columns: 1fr 300px; gap: 16px; }
@media (max-width: 1024px) { .game-layout { grid-template-columns: 1fr; } }
.game-main-card { height: 500px; display: flex; flex-direction: column; position: relative; }
.game-hud { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; padding: 6px 12px; background: var(--bg-secondary); border-radius: var(--radius-md); border: 1px solid var(--border-subtle); }
.game-hud-stat { display: flex; align-items: baseline; gap: 6px; font-size: 0.82rem; color: var(--text-secondary); }
.game-hud-val { font-family: var(--font-mono); font-size: 1.25rem; font-weight: 800; color: #a855f7; }
.game-canvas-container { flex: 1; position: relative; background: linear-gradient(180deg, #090e1a 0%, #0d1527 50%, #080d18 100%); border-radius: var(--radius-md); border: 1px solid var(--border-subtle); overflow: hidden; }
canvas#gameCanvas { width: 100%; height: 100%; display: block; }
.game-overlay-modal { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(7, 10, 16, 0.85); backdrop-filter: blur(6px); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; z-index: 10; text-align: center; padding: 20px; }
.game-overlay-title { font-family: var(--font-display); font-size: 1.8rem; font-weight: 800; color: #e9d5ff; text-shadow: 0 0 20px rgba(168, 85, 247, 0.5); }

/* 🎹 Piano & Vocal Range */
.piano-layout { display: grid; grid-template-columns: 1fr; gap: 16px; }
.piano-keyboard-card { padding: 20px; display: flex; flex-direction: column; gap: 14px; }
.piano-container { position: relative; width: 100%; height: 160px; background: #090d14; border: 1px solid var(--border-medium); border-radius: var(--radius-md); padding: 8px 4px 4px 4px; display: flex; overflow-x: auto; box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.8); }
.piano-key { position: relative; cursor: pointer; user-select: none; transition: background-color 0.1s ease, transform 0.05s ease; display: flex; align-items: flex-end; justify-content: center; padding-bottom: 6px; font-family: var(--font-mono); font-size: 0.65rem; font-weight: 700; }
.piano-key.white { flex: 1; min-width: 26px; height: 100%; background: #f8fafc; color: #1e293b; border: 1px solid #cbd5e1; border-radius: 0 0 4px 4px; z-index: 1; }
.piano-key.white:hover { background: #e2e8f0; }
.piano-key.white.active { background: #10b981 !important; color: #ffffff !important; box-shadow: 0 0 16px rgba(16, 185, 129, 0.8); transform: translateY(2px); }
.piano-key.black { position: absolute; width: 18px; height: 60%; background: #0f172a; color: #94a3b8; border: 1px solid #334155; border-radius: 0 0 3px 3px; z-index: 2; font-size: 0.55rem; padding-bottom: 4px; transform: translateX(-50%); }
.piano-key.black:hover { background: #1e293b; }
.piano-key.black.active { background: #38bdf8 !important; color: #ffffff !important; box-shadow: 0 0 16px rgba(56, 189, 248, 0.8); }
.vocal-range-display-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; }
.range-stat-box { background: var(--bg-secondary); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 12px; text-align: center; }
.range-stat-title { font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; margin-bottom: 4px; }
.range-stat-val { font-family: var(--font-mono); font-size: 1.4rem; font-weight: 800; color: var(--color-piano); }
.passaggio-pills-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.passaggio-pill { padding: 4px 10px; border-radius: var(--radius-full); font-size: 0.75rem; font-weight: 600; }
.passaggio-pill.observed-low { background: rgba(239, 68, 68, 0.15); color: var(--color-low); border: 1px solid rgba(239, 68, 68, 0.3); }
.passaggio-pill.observed-span { background: rgba(16, 185, 129, 0.18); color: var(--color-positive); border: 1px solid rgba(16, 185, 129, 0.4); }
.passaggio-pill.observed-high { background: rgba(56, 189, 248, 0.15); color: var(--color-high); border: 1px solid rgba(56, 189, 248, 0.3); }

/* Modal Editor */
.modal-overlay { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background: rgba(0, 0, 0, 0.7); backdrop-filter: blur(4px); z-index: 210; display: none; align-items: center; justify-content: center; }
.modal-overlay.open { display: flex; }
.modal-box { background: var(--bg-secondary); backdrop-filter: blur(20px); border: 1px solid var(--border-medium); border-radius: var(--radius-lg); width: 600px; max-width: 90vw; padding: 24px; box-shadow: var(--shadow-lg); }
.modal-textarea { width: 100%; height: 180px; background: var(--bg-tertiary); color: var(--text-primary); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 12px; font-family: var(--font-sans); font-size: 0.95rem; resize: vertical; outline: none; margin-bottom: 16px; }

/* Cool-Down */
.cooldown-layout { display: grid; grid-template-columns: 1fr 320px; gap: 16px; }
@media (max-width: 1024px) { .cooldown-layout { grid-template-columns: 1fr; } }
.cooldown-card { background: linear-gradient(180deg, rgba(16, 26, 38, 0.85), rgba(14, 22, 32, 0.85)); border: 1px solid rgba(6, 182, 212, 0.3); border-radius: var(--radius-lg); padding: 24px; text-align: center; display: flex; flex-direction: column; justify-content: space-between; min-height: 480px; }
.breathing-circle-wrap { position: relative; width: 160px; height: 160px; margin: 16px auto; display: flex; align-items: center; justify-content: center; }
.breathing-circle { width: 100%; height: 100%; border-radius: 50%; background: radial-gradient(circle, rgba(6, 182, 212, 0.3) 0%, rgba(6, 182, 212, 0.05) 70%); border: 2px solid var(--color-cooldown); animation: breatheAnimation 8s infinite ease-in-out; }
@keyframes breatheAnimation { 0%, 100% { transform: scale(0.85); opacity: 0.5; } 50% { transform: scale(1.15); opacity: 1; box-shadow: 0 0 30px rgba(6, 182, 212, 0.4); } }
.breathing-text { position: absolute; font-size: 1.1rem; font-weight: 700; color: #e0f2fe; }

/* 2D Voice Map */
.map-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 16px; align-items: start; }
@media (max-width: 1024px) { .map-layout { grid-template-columns: 1fr; } }
.analysis-side-column { display: flex; flex-direction: column; gap: 14px; }
.chart-target-badge { font-size: 0.78rem; color: var(--color-positive); font-weight: 700; text-align: right; }
.map-header-actions { display: flex; align-items: center; justify-content: flex-end; gap: 8px; min-width: 0; }
.map-reset-btn { padding: 4px 8px; font-size: 0.72rem; flex: 0 0 auto; }
.chart-note { margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--border-subtle); color: var(--text-muted); font-size: 0.72rem; line-height: 1.45; }
.map-canvas-card { height: clamp(480px, calc(100vh - 150px), 700px); display: flex; flex-direction: column; }
.map-canvas-container { flex: 1; position: relative; background: #070a10; border-radius: var(--radius-md); border: 1px solid var(--border-subtle); overflow: hidden; }
canvas#voiceMapCanvas { width: 100%; height: 100%; display: block; }
.map-live-readout { display: grid; grid-template-columns: 1fr auto; gap: 3px 10px; align-items: baseline; background: var(--bg-secondary); border: 1px solid var(--border-medium); padding: 10px; margin-bottom: 8px; }
.map-live-readout > span { color: var(--text-secondary); font-size: 0.74rem; font-weight: 700; }
.map-live-readout > strong { color: var(--text-primary); font-family: var(--font-mono); font-size: 0.86rem; text-align: right; }
.map-live-readout > small { grid-column: 1 / -1; color: var(--text-muted); font-size: 0.7rem; line-height: 1.35; }
.map-axis-guide { display: grid; gap: 8px; }
.map-axis-card { background: var(--bg-secondary); border: 1px solid var(--border-subtle); padding: 10px; }
.map-axis-title { color: var(--accent-primary); font-size: 0.78rem; font-weight: 700; margin-bottom: 4px; }
.map-axis-desc { color: var(--text-secondary); font-size: 0.74rem; line-height: 1.4; }
.map-range-note { display: flex; flex-direction: column; gap: 3px; margin-top: 8px; padding: 9px 10px; border: 1px solid rgba(16, 185, 129, 0.35); background: rgba(16, 185, 129, 0.07); color: var(--text-secondary); font-size: 0.72rem; line-height: 1.4; }
.map-range-note strong { color: var(--color-positive); font-size: 0.76rem; }
@media (max-width: 1180px) {
  .map-canvas-card > .card-header { align-items: flex-start; flex-direction: column; }
  .map-header-actions { justify-content: space-between; width: 100%; }
  .chart-target-badge { text-align: left; }
}
@media (max-width: 1024px) {
  .map-canvas-card { height: clamp(440px, calc(100vh - 240px), 540px); }
  .analysis-side-column .map-axis-guide { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 620px) {
  .map-header-actions, .analysis-side-column .map-axis-guide { grid-template-columns: 1fr; flex-direction: column; align-items: stretch; }
  .map-reset-btn { width: 100%; }
}

/* Formants */
.formant-matrix-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 16px; align-items: start; }
@media (max-width: 1024px) { .formant-matrix-layout { grid-template-columns: 1fr; } }
.formant-canvas-card { height: clamp(480px, calc(100vh - 150px), 700px); display: flex; flex-direction: column; }
.formant-canvas-container { flex: 1; position: relative; background: #070a10; border-radius: var(--radius-md); border: 1px solid var(--border-subtle); overflow: hidden; }
canvas#formantCanvas { width: 100%; height: 100%; display: block; }

/* Melody Trainer */
.melody-trainer-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 16px; align-items: start; }
@media (max-width: 1024px) { .melody-trainer-layout { grid-template-columns: 1fr; } }
.melody-canvas-card { height: clamp(480px, calc(100vh - 150px), 700px); display: flex; flex-direction: column; }
.melody-canvas-container { flex: 1; position: relative; background: #070a10; border-radius: var(--radius-md); border: 1px solid var(--border-subtle); overflow: hidden; }
canvas#melodyCanvas { width: 100%; height: 100%; display: block; }
.melody-exercise-list { display: flex; flex-direction: column; gap: 8px; max-height: 320px; overflow-y: auto; }
.exercise-item { background: var(--bg-secondary); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 10px; cursor: pointer; transition: all var(--transition-fast); }
.exercise-item:hover { background: var(--bg-card-hover); border-color: var(--accent-primary); }
.exercise-item.active { background: rgba(59, 130, 246, 0.12); border-color: var(--accent-primary); }
.score-display-box { background: var(--bg-secondary); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 12px; text-align: center; margin-top: 10px; }
.score-number { font-family: var(--font-mono); font-size: 2rem; font-weight: 800; color: var(--color-positive); }
.melody-results { text-align: left; }
.melody-result-row { display: flex; justify-content: space-between; gap: 12px; padding: 5px 0; font-size: 0.76rem; color: var(--text-secondary); }
.melody-result-row strong { color: var(--text-primary); font-family: var(--font-mono); white-space: nowrap; }
.melody-hint { margin-top: 8px; color: var(--text-muted); font-size: 0.72rem; line-height: 1.4; }

/* Spectrogram */
.spectrogram-card {
  height: calc(100vh - var(--header-height) - 58px);
  min-height: 620px;
  display: flex;
  flex-direction: column;
}
.spectrogram-plot {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr) 28px 22px;
  margin: 0;
}
.spectrogram-frequency-axis {
  grid-column: 1;
  grid-row: 1;
  position: relative;
  min-height: 0;
}
.spectrogram-axis-title {
  color: var(--text-secondary);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.035em;
}
.spectrogram-frequency-title {
  position: absolute;
  top: 50%;
  left: 0;
  writing-mode: vertical-rl;
  transform: translateY(-50%) rotate(180deg);
  white-space: nowrap;
}
.spectrogram-frequency-ticks {
  position: absolute;
  inset: 0 0 0 25px;
}
.spectrogram-axis-tick,
.spectrogram-time-tick,
.spectrogram-axis-corner {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  line-height: 1;
  white-space: nowrap;
}
.spectrogram-axis-tick {
  position: absolute;
  top: var(--axis-position);
  right: 10px;
  transform: translateY(-50%);
}
.spectrogram-axis-tick.edge-start { transform: none; }
.spectrogram-axis-tick.edge-end { transform: translateY(-100%); }
.spectrogram-container {
  position: relative;
  min-width: 0;
  min-height: 0;
  background: #000000;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
}
.spectrogram-plot-area {
  grid-column: 2;
  grid-row: 1;
}
canvas#spectrogramCanvas {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  display: block;
}
.spectrogram-grid {
  position: absolute;
  z-index: 2;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.spectrogram-grid-line {
  position: absolute;
  display: block;
  background: rgba(148, 163, 184, 0.17);
}
.spectrogram-grid-line.horizontal {
  top: var(--grid-position);
  left: 0;
  width: 100%;
  height: 1px;
}
.spectrogram-grid-line.vertical {
  top: 0;
  left: var(--grid-position);
  width: 1px;
  height: 100%;
}
.spectrogram-axis-corner {
  grid-column: 1;
  grid-row: 2;
  align-self: start;
  justify-self: end;
  padding: 8px 10px 0 0;
}
.spectrogram-time-axis {
  grid-column: 2;
  grid-row: 2;
  position: relative;
  min-width: 0;
}
.spectrogram-time-tick {
  position: absolute;
  top: 8px;
  left: var(--axis-position);
  transform: translateX(-50%);
}
.spectrogram-time-tick.edge-start { transform: none; }
.spectrogram-time-tick.edge-end { transform: translateX(-100%); }
.spectrogram-time-title {
  grid-column: 2;
  grid-row: 3;
  align-self: end;
  justify-self: center;
}
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}
.chart-empty-state { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; padding: 20px; color: var(--text-muted); font-size: 0.8rem; text-align: center; pointer-events: none; background: radial-gradient(circle, rgba(15, 23, 42, 0.35), transparent 55%); }
.spectrogram-plot-area .chart-empty-state { z-index: 3; }
.chart-empty-state[hidden] { display: none !important; }

/* Journal & Trends */
.journal-layout { display: grid; grid-template-columns: 1fr; gap: 16px; }
.trend-chart-card { height: 250px; margin-bottom: 16px; }
canvas#trendCanvas { width: 100%; height: 100%; display: block; }
.milestones-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; margin-bottom: 16px; }
.milestone-badge-card { background: var(--bg-secondary); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); padding: 10px; display: flex; align-items: center; gap: 10px; opacity: 0.45; }
.milestone-badge-card.unlocked { opacity: 1.0; border-color: rgba(245, 158, 11, 0.4); background: rgba(245, 158, 11, 0.08); }
.journal-entries-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
.journal-card { background: var(--bg-secondary); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); padding: 14px; display: flex; flex-direction: column; gap: 10px; }
.empty-state { text-align: center; padding: 40px 16px; color: var(--text-muted); background: var(--bg-secondary); border: 1px dashed var(--border-medium); border-radius: var(--radius-lg); }
.report-card { display: grid; grid-template-columns: minmax(0, 1fr) minmax(360px, 0.8fr); gap: 18px; align-items: start; }
.report-controls { display: grid; gap: 8px; }
.report-overlay { position: fixed; inset: 0; z-index: 500; overflow-y: auto; padding: 28px; background: #eef2f7; color: #111827; }
.printable-report { max-width: 920px; margin: 0 auto 72px; padding: 42px; background: #fff; color: #111827; border-radius: 12px; box-shadow: 0 18px 50px rgba(15, 23, 42, 0.18); font-family: system-ui, sans-serif; }
.printable-report h1 { margin: 0 0 4px; font-size: 1.7rem; }
.printable-report h2 { margin: 26px 0 9px; padding-bottom: 6px; border-bottom: 1px solid #dbe3ed; font-size: 1rem; }
.printable-report p, .printable-report li, .printable-report td, .printable-report th { font-size: 0.78rem; line-height: 1.45; }
.printable-report table { width: 100%; border-collapse: collapse; }
.printable-report th, .printable-report td { padding: 7px; border-bottom: 1px solid #e5e7eb; text-align: left; vertical-align: top; }
.printable-report .report-disclaimer { margin-top: 28px; padding: 10px; background: #f3f4f6; border-radius: 6px; color: #4b5563; }
.report-overlay-actions { position: fixed; right: 28px; bottom: 20px; display: flex; gap: 8px; padding: 8px; border-radius: var(--radius-lg); background: var(--bg-secondary); box-shadow: var(--shadow-lg); }
.share-overlay { position: fixed; inset: 0; z-index: 520; display: grid; place-items: center; overflow-y: auto; padding: 24px; background: rgba(3, 7, 18, 0.84); backdrop-filter: blur(8px); }
.share-dialog { width: min(860px, 100%); max-height: calc(100vh - 48px); overflow-y: auto; padding: 22px; border: 2px solid var(--accent-primary); background: var(--bg-secondary); box-shadow: 12px 12px 0 color-mix(in srgb, var(--accent-primary) 28%, transparent); }
.share-dialog-header { display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; padding-bottom: 14px; border-bottom: 1px solid var(--border-medium); }
.share-dialog-header h2 { margin: 8px 0 4px; font-family: var(--font-display); font-size: 1.15rem; }
.share-dialog-header p { color: var(--text-secondary); font-size: 0.78rem; line-height: 1.45; }
.share-dialog-header .icon-btn { flex: 0 0 auto; font-size: 1.3rem; }
.share-session-summary, .share-export-summary { display: flex; justify-content: space-between; gap: 14px; margin: 14px 0; padding: 10px 12px; border: 1px solid var(--border-medium); background: var(--bg-tertiary); color: var(--text-secondary); font-size: 0.78rem; }
.share-session-summary span, .share-export-summary span { color: var(--text-primary); font-family: var(--font-mono); font-weight: 750; }
.share-audio-heading { display: flex; justify-content: space-between; gap: 14px; align-items: flex-end; }
.share-audio-heading strong, .share-audio-heading small { display: block; }
.share-audio-heading strong { font-size: 0.82rem; }
.share-audio-heading small { margin-top: 3px; color: var(--text-muted); font-size: 0.7rem; }
.share-audio-list { display: grid; gap: 7px; max-height: 300px; overflow-y: auto; margin-top: 10px; padding-right: 3px; }
.share-audio-option { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px 10px; align-items: center; padding: 9px 11px; border: 1px solid var(--border-subtle); background: var(--bg-tertiary); color: var(--text-secondary); font-size: 0.74rem; }
.share-audio-selection { display: flex; min-width: 0; align-items: center; gap: 10px; cursor: pointer; }
.share-audio-option input { accent-color: var(--accent-primary); }
.share-audio-option strong { display: block; overflow: hidden; color: var(--text-primary); text-overflow: ellipsis; white-space: nowrap; }
.share-audio-preview { grid-column: 1 / -1; padding-left: 25px; }
.share-audio-option audio { display: block; width: min(100%, 420px); height: 32px; }
.share-audio-option em { display: block; margin-top: 3px; color: var(--text-muted); font-size: 0.7rem; }
.share-audio-option small { color: var(--text-muted); font-family: var(--font-mono); white-space: nowrap; }
.share-size-limit { display: block; margin-top: -8px; color: var(--text-muted); font-size: 0.68rem; }
.share-confirm-text { color: var(--text-secondary); font-size: 0.74rem; }
.share-dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 14px; }
.share-dialog .report-disclaimer { margin: 14px 0 0; padding: 9px 11px; border-left: 4px solid var(--accent-primary); background: var(--bg-tertiary); color: var(--text-muted); font-size: 0.7rem; line-height: 1.45; }
.settings-check { display: flex !important; align-items: flex-start; gap: 8px; font-weight: 500 !important; }

@media (max-width: 1024px) { .report-card { grid-template-columns: 1fr; } }

@media print {
  body > :not(#reportOverlay) { display: none !important; }
  #reportOverlay { display: block !important; position: static; padding: 0; background: white; overflow: visible; }
  .report-overlay-actions { display: none !important; }
  .printable-report { max-width: none; margin: 0; padding: 12mm; border-radius: 0; box-shadow: none; }
  @page { margin: 10mm; }
}

[hidden] { display: none !important; }

/* Settings Drawer */
.settings-drawer { position: fixed; top: 0; right: -420px; width: 380px; max-width: 90vw; height: 100vh; background: var(--bg-secondary); backdrop-filter: blur(24px); border-left: 1px solid var(--border-medium); box-shadow: var(--shadow-lg); z-index: 200; transition: right 0.3s cubic-bezier(0.16, 1, 0.3, 1); display: flex; flex-direction: column; padding: 20px; overflow-y: auto; }
.settings-drawer.open { right: 0; }
.settings-overlay { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background: rgba(0, 0, 0, 0.65); backdrop-filter: blur(4px); z-index: 199; opacity: 0; pointer-events: none; transition: opacity 0.25s ease; }
.settings-overlay.open { opacity: 1; pointer-events: auto; }
.setting-group { margin-bottom: 16px; }
.setting-group label { display: block; font-size: 0.82rem; font-weight: 600; color: var(--text-primary); margin-bottom: 4px; }
.range-wrap { display: flex; align-items: center; gap: 10px; }
.range-wrap input[type="range"] { flex: 1; accent-color: var(--accent-primary); }
.range-wrap input[type="number"], .working-range-settings input { width: 100%; min-width: 0; border: 1px solid var(--border-medium); background: var(--bg-tertiary); color: var(--text-primary); padding: 8px 10px; font: inherit; }
.range-val { flex: 0 0 58px; min-width: 58px; font-family: var(--font-mono); font-size: 0.82rem; color: var(--text-primary); text-align: right; white-space: nowrap; }
.working-range-settings { display: grid; gap: 8px; padding: 12px; border: 1px solid var(--border-medium); background: color-mix(in srgb, var(--bg-tertiary) 82%, transparent); }
.working-range-settings label { margin-bottom: 0; }
.working-range-status { font-size: 0.78rem; color: var(--text-secondary); line-height: 1.4; }
.working-range-candidates { display: grid; gap: 6px; }
.working-range-candidate { display: flex; justify-content: space-between; align-items: center; gap: 8px; width: 100%; padding: 8px 10px; border: 1px solid var(--border-subtle); background: var(--bg-secondary); color: var(--text-primary); text-align: left; cursor: pointer; }
.working-range-candidate small { color: var(--text-muted); }
.range-lock-message { margin: 10px 0; padding: 10px 12px; border: 1px solid var(--color-caution); background: color-mix(in srgb, var(--color-caution) 12%, var(--bg-secondary)); color: var(--text-primary); font-size: 0.8rem; line-height: 1.45; }
.training-disclaimer { font-size: 0.72rem; color: var(--text-muted); line-height: 1.45; padding: 10px; margin: 4px 0 16px; border: 1px solid var(--border-subtle); border-radius: var(--radius-md); background: var(--bg-tertiary); }

/* Compact desktop header for the supported small-laptop range. */
@media (min-width: 1280px) and (max-width: 1499px) {
  .app-header { gap: 8px; }
  .hud-target-badge, .hud-vu-mini, .sidetone-control-wrap { display: none; }
  .select-wrapper select { max-width: 120px; }
}

@media (min-width: 1024px) and (max-width: 1279px) {
  .app-header { padding: 0 10px; gap: 7px; }
  .brand-icon, .brand-badge, .sidetone-control-wrap { display: none; }
  .brand-section, .header-controls { gap: 5px; }
  .global-pitch-hud { gap: 5px; padding: 4px 7px; }
  .hud-target-badge, .hud-vu-mini { display: none; }
  .select-wrapper select { max-width: 92px; }
  .lang-pill { padding: 4px 5px; font-size: 0.68rem; }
  .btn-primary { padding-left: 10px; padding-right: 10px; }
}

@media (max-width: 768px) {
  .app-sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    bottom: 0;
    transform: translateX(-100%);
    box-shadow: var(--shadow-lg);
  }
  .app-sidebar.mobile-open {
    transform: translateX(0);
  }
}