/* Harmonix LFP Specific Styling - Red Theme */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');

body.harmonix-page {
  --bg-color: #0c0404;
  --surface-color: rgba(30, 12, 12, 0.65);
  --surface-color-hover: rgba(45, 18, 18, 0.85);
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --primary-neon: #ef4444;    /* Crimson Red */
  --secondary-neon: #ff6b6b;  /* Coral Red */
  --accent-color: #f43f5e;    /* Rose */

  /* Harmonix specific variables mapped to the main ones */
  --bg-dark: var(--bg-color);
  --bg-card: var(--surface-color);
  --bg-card-hover: var(--surface-color-hover);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-accent: rgba(239, 68, 68, 0.4);

  --primary: var(--primary-neon);
  --primary-glow: rgba(239, 68, 68, 0.35);
  --primary-hover: var(--secondary-neon);

  --secondary: var(--accent-color);
  --secondary-glow: rgba(244, 63, 94, 0.35);

  --accent-cyan: #f43f5e;
  --accent-rose: #ef4444;
  --accent-emerald: #10b981;

  --text-main: var(--text-primary);
  --text-muted: var(--text-secondary);
  --text-dim: #64748b;

  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);

  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(239, 68, 68, 0.22) 0%, transparent 50%),
    radial-gradient(circle at 15% 35%, rgba(244, 63, 94, 0.15) 0%, transparent 45%),
    radial-gradient(circle at 85% 65%, rgba(255, 107, 107, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 50% 90%, rgba(239, 68, 68, 0.15) 0%, transparent 50%);
  background-attachment: fixed;
  background-size: 100% 800px, 700px 700px, 700px 700px, 800px 800px;
}

/* Background Ambient Red Sparkles overlay */
body.harmonix-page::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(2px 2px at 30px 40px, #ef4444, rgba(0,0,0,0)),
    radial-gradient(2px 2px at 60px 120px, #ff8b8b, rgba(0,0,0,0)),
    radial-gradient(3px 3px at 140px 60px, #ff3344, rgba(0,0,0,0)),
    radial-gradient(2px 2px at 220px 180px, #ef4444, rgba(0,0,0,0)),
    radial-gradient(3px 3px at 320px 110px, #ff6b6b, rgba(0,0,0,0));
  background-repeat: repeat;
  background-size: 350px 350px;
  opacity: 0.25;
  pointer-events: none;
  z-index: 1;
}

body.harmonix-page .navbar {
  background-color: rgba(12, 4, 4, 0.94);
  border-bottom: 1px solid rgba(239, 68, 68, 0.35);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5), 0 0 15px rgba(239, 68, 68, 0.15);
}

body.harmonix-page .logo .highlight {
  color: var(--primary-neon);
}

body.harmonix-page .nav-links a:not(.btn):hover {
  color: var(--primary-neon);
}

/* Layout Main Container */
main.harmonix-container {
  max-width: 1300px;
  margin: 120px auto 4rem; /* Top margin modified for Navbar offset */
  padding: 0 1.5rem 4rem;
  position: relative;
  z-index: 2;
}

.page-tab {
  display: none;
  animation: fadeIn 0.4s ease forwards;
}

.page-tab.active {
  display: block;
}

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

/* Glass Card */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  transition: var(--transition-normal);
}

.glass-panel:hover {
  border-color: rgba(255, 255, 255, 0.12);
}

/* DASHBOARD PAGE */
.hero-banner {
  text-align: center;
  padding: 3.5rem 2rem;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

.hero-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 20px;
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.2rem;
}

.hero-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #ffffff 30%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-title span {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto 2rem;
  line-height: 1.6;
}

.btn-cta {
  background: linear-gradient(135deg, var(--primary), #b91c1c);
  color: #fff;
  font-size: 1.1rem;
  font-weight: 700;
  padding: 0.9rem 2.2rem;
  border-radius: 30px;
  border: none;
  cursor: pointer;
  box-shadow: 0 0 25px var(--primary-glow);
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 35px rgba(239, 68, 68, 0.5);
  background: linear-gradient(135deg, var(--primary-hover), var(--primary));
}

.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.module-card {
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.module-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  transition: var(--transition-fast);
}

.module-card:hover::after {
  border-color: var(--primary);
}

.module-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--primary);
}

.module-card-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.module-card-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* INTERACTIVE GENERATOR PAGE */
.generator-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 1.5rem;
}

@media (max-width: 960px) {
  .generator-layout {
    grid-template-columns: 1fr;
  }
}

.control-group {
  margin-bottom: 1.4rem;
}

.control-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
}

.control-select, .control-input {
  width: 100%;
  background: rgba(15, 21, 37, 0.9);
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-fast);
}

.control-select:focus, .control-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 10px var(--primary-glow);
}

.btn-generate {
  width: 100%;
  background: linear-gradient(135deg, var(--secondary), #be123c);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  padding: 0.9rem;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  box-shadow: 0 0 20px var(--secondary-glow);
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
}

.btn-generate:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 30px rgba(244, 63, 94, 0.6);
  background: linear-gradient(135deg, #f43f5e, var(--secondary));
}

/* Playback Control Bar */
.playback-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  background: rgba(15, 21, 37, 0.8);
  border-radius: var(--radius-md);
  padding: 1rem 1.5rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--glass-border);
}

.playback-buttons {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.btn-play-master {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--primary);
  border: none;
  color: #000;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px var(--primary-glow);
  transition: var(--transition-fast);
}

.btn-play-master:hover {
  transform: scale(1.08);
}

.btn-stop-master {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.btn-stop-master:hover {
  background: rgba(255, 255, 255, 0.12);
}

.playback-setting {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Progression Chords Visual Display */
.progression-results {
  margin-bottom: 1.8rem;
}

.progression-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.progression-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
}

.progression-info-badge {
  font-size: 0.8rem;
  padding: 0.3rem 0.8rem;
  border-radius: 12px;
  background: rgba(239, 68, 68, 0.1);
  color: var(--primary-neon);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.speed-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  background: rgba(15, 21, 37, 0.7);
  border: 1px solid var(--glass-border);
  padding: 0.4rem 1rem;
  border-radius: 30px;
  transition: var(--transition-fast);
}

.speed-toggle.active {
  border-color: var(--primary);
  background: rgba(239, 68, 68, 0.1);
  box-shadow: 0 0 18px var(--primary-glow);
}

.speed-toggle-label {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.speed-toggle.active .speed-toggle-label {
  color: var(--primary);
}

.speed-toggle-status {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
  min-width: 26px;
  transition: var(--transition-fast);
}

.speed-toggle.active .speed-toggle-status {
  color: var(--primary);
}

/* Toggle Switch Component */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 24px;
  transition: var(--transition-fast);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  height: 18px;
  width: 18px;
  left: 2px;
  bottom: 2px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: var(--transition-fast);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.toggle-switch input:checked + .toggle-slider {
  background: rgba(239, 68, 68, 0.3);
  border-color: var(--primary);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(20px);
  background: var(--primary);
  box-shadow: 0 0 10px var(--primary-glow);
}

.chords-flex {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
}

.chord-card {
  background: rgba(15, 21, 37, 0.9);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 1.2rem;
  text-align: center;
  position: relative;
  transition: var(--transition-normal);
  cursor: pointer;
}

.chord-card.playing {
  border-color: var(--primary);
  background: rgba(239, 68, 68, 0.12);
  box-shadow: 0 0 20px var(--primary-glow);
  transform: translateY(-4px);
}

.chord-card-roman {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.4rem;
}

.chord-card-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 0.4rem;
}

.chord-card-function {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 6px;
  margin-bottom: 0.6rem;
}

.func-tonic { background: rgba(16, 185, 129, 0.15); color: #10b981; }
.func-subdominant { background: rgba(239, 68, 68, 0.15); color: var(--secondary-neon); }
.func-dominant { background: rgba(244, 63, 94, 0.15); color: var(--accent-color); }
.func-tritone { background: rgba(139, 92, 246, 0.15); color: #c084fc; }
.func-passing { background: rgba(239, 68, 68, 0.15); color: var(--primary); }

.chord-card-notes {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Piano Roll / Keyboard Visualizer */
.visualizer-section {
  margin-top: 2rem;
}

.visualizer-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.keyboard-container {
  display: flex;
  justify-content: center;
  background: #110505;
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  overflow-x: auto;
  position: relative;
  user-select: none;
}

.piano-keyboard {
  display: flex;
  position: relative;
  height: 120px;
}

.key-white {
  width: 26px;
  height: 120px;
  background: #e2e8f0;
  border: 1px solid #cbd5e1;
  border-radius: 0 0 4px 4px;
  box-sizing: border-box;
  z-index: 1;
  transition: background 0.15s ease;
  position: relative;
}

.key-black {
  width: 16px;
  height: 75px;
  background: #1e293b;
  border-radius: 0 0 3px 3px;
  margin-left: -8px;
  margin-right: -8px;
  z-index: 2;
  transition: background 0.15s ease;
  position: relative;
}

.key-white.active {
  background: var(--primary) !important;
  box-shadow: 0 0 15px var(--primary-glow);
}

.key-black.active {
  background: var(--secondary) !important;
  box-shadow: 0 0 15px var(--secondary-glow);
}

.key-label {
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.65rem;
  font-weight: 600;
  color: #475569;
}

.key-black .key-label {
  color: #94a3b8;
  bottom: 4px;
}

/* THEORY LIBRARY PAGE */
.theory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.theory-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 1.6rem;
}

.theory-card-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1rem;
}

.theory-card-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: rgba(239, 68, 68, 0.12);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.theory-card-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
}

.theory-card-body {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.theory-card-body p {
  margin-bottom: 0.8rem;
}

.theory-tag {
  display: inline-block;
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-main);
  margin-right: 0.4rem;
  margin-top: 0.4rem;
}