/* CSS Variables for Cyber DAW Theme */
:root {
  /* Light Mode (Secondary) */
  --bg-primary: #f0f2f5;
  --bg-secondary: #ffffff;
  --text-primary: #1a1a1a;
  --text-secondary: #6b7280;
  --border-color: #d1d5db;
  --card-bg: #ffffff;
  --visualizer-bg: #ffffff;
  --visualizer-border: #00ffff;
  --accent-cyan: #00ffff;
  --accent-magenta: #ff00ff;
  --accent-green: #00ff88;
  --accent-purple: #8b5cf6;
  --accent-primary: #2563eb;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-glow-cyan: 0 0 20px rgba(0, 255, 255, 0.3);
  --shadow-glow-magenta: 0 0 20px rgba(255, 0, 255, 0.3);
  --shadow-glow-green: 0 0 20px rgba(0, 255, 136, 0.3);
  --grid-pattern: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%2300ffff' stroke-width='1' opacity='0.1'%3E%3Cpath d='M0 20h40M20 0v40'/%3E%3C/g%3E%3C/svg%3E");
}

[data-theme="dark"] {
  /* Dark Mode (Primary - DAW Style) */
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --border-color: #21262d;
  --card-bg: #0d1117;
  --visualizer-bg: #010409;
  --visualizer-border: #00ffff;
  --accent-cyan: #00ffff;
  --accent-magenta: #ff00ff;
  --accent-green: #00ff88;
  --accent-purple: #8b5cf6;
  --accent-primary: #3b82f6;
  --shadow-sm: 0 0 10px rgba(0, 0, 0, 0.8);
  --shadow-md: 0 0 20px rgba(0, 0, 0, 0.8);
  --shadow-lg: 0 0 30px rgba(0, 0, 0, 0.9);
  --shadow-glow-cyan: 0 0 20px rgba(0, 255, 255, 0.6), 0 0 40px rgba(0, 255, 255, 0.3);
  --shadow-glow-magenta: 0 0 20px rgba(255, 0, 255, 0.6), 0 0 40px rgba(255, 0, 255, 0.3);
  --shadow-glow-green: 0 0 20px rgba(0, 255, 136, 0.6), 0 0 40px rgba(0, 255, 136, 0.3);
  --grid-pattern: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%2300ffff' stroke-width='1' opacity='0.08'%3E%3Cpath d='M0 20h40M20 0v40'/%3E%3C/g%3E%3C/svg%3E");
}

/* Global Styles */
body {
  background-color: var(--bg-primary) !important;
  background-image: var(--grid-pattern);
  color: var(--text-primary) !important;
  transition: background-color 0.3s ease, color 0.3s ease;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  letter-spacing: -0.01em;
}

/* Container Max Width */
.container {
  max-width: 1200px;
}

.main-container {
  max-width: 1400px;
  padding-top: 2rem;
  padding-bottom: 3rem;
}

/* Desktop Only (992px+) */
@media (min-width: 992px) {
  .sticky-sidebar {
    position: sticky;
    top: 2rem;
  }

  midi-visualizer {
    height: 125px !important;
    max-height: 125px !important;
  }

  .hero-section {
    min-height: 400px;
  }
}

/* Hero Section - Cyber DAW Style */
.hero-section {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  border-radius: 2px;
  box-shadow: var(--shadow-lg), inset 0 0 100px rgba(0, 255, 255, 0.05);
  border: 2px solid var(--accent-cyan);
  overflow: hidden;
  margin-bottom: 3rem;
  position: relative;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    var(--grid-pattern),
    linear-gradient(90deg, transparent 0%, rgba(0, 255, 255, 0.05) 50%, transparent 100%);
  pointer-events: none;
  animation: scan 8s linear infinite;
}

@keyframes scan {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.6; }
}

[data-theme="dark"] .hero-section {
  background: linear-gradient(135deg, #0a0e1a 0%, #1a1a2e 100%);
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-glow-cyan), var(--shadow-lg);
}

.hero-content {
  color: white !important;
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  color: white !important;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.hero-content p {
  color: rgba(255, 255, 255, 0.9) !important;
  line-height: 1.7;
}

.hero-guide-btn {
  border-radius: 0.5rem;
}

.hero-image {
  border: 3px solid rgba(255, 255, 255, 0.3);
}

/* Form Styles */
.form-title {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  text-transform: uppercase;
  color: var(--accent-cyan);
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

#textForm {
  background-color: var(--bg-secondary) !important;
  border: 2px solid var(--border-color) !important;
  box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.5), var(--shadow-sm);
}

#textForm .d-grid {
  gap: 0.5rem;
}

/* Card Styles - Cyber DAW */
.card {
  background-color: var(--card-bg) !important;
  border: 2px solid var(--border-color) !important;
  box-shadow: var(--shadow-sm), inset 0 0 50px rgba(0, 0, 0, 0.5);
  border-radius: 2px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
  animation: cardScan 3s linear infinite;
}

@keyframes cardScan {
  0% { left: -100%; }
  100% { left: 100%; }
}

.card:hover {
  box-shadow: var(--shadow-glow-cyan), var(--shadow-md);
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
}

.bg-light {
  background-color: var(--bg-secondary) !important;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.border {
  border-color: var(--border-color) !important;
}

.text-muted {
  color: var(--text-secondary) !important;
}

#response {
  background-color: var(--bg-secondary);
  border: 2px solid var(--accent-cyan);
  border-radius: 2px;
  color: var(--text-primary);
  font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
  line-height: 1.8;
  font-size: 0.95rem;
  box-shadow: inset 0 0 20px rgba(0, 255, 255, 0.1), var(--shadow-glow-cyan);
  text-shadow: 0 0 2px rgba(0, 255, 255, 0.3);
}

/* Buttons - Cyber Style */
.btn {
  border-radius: 2px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 0.75rem;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.3s, height 0.3s;
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn:hover {
  transform: translateY(-2px);
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-purple) 100%);
  border-color: var(--accent-cyan);
  color: #000;
  font-weight: 700;
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-magenta) 100%);
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-glow-cyan);
  color: #000;
}

/* Large Buttons - もっと大きく目立つように */
.btn-lg {
  font-size: 1.1rem !important;
  padding: 1rem 1.75rem !important;
  font-weight: 700 !important;
  letter-spacing: 0.1em !important;
}

.btn-outline-secondary {
  border-color: var(--border-color);
  color: var(--text-primary);
}

.btn-outline-secondary:hover {
  background-color: var(--bg-secondary);
  border-color: var(--text-secondary);
  color: var(--text-primary);
}

.btn-outline-primary {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  font-size: 0.875rem;
  padding: 0.375rem 0.75rem;
}

.btn-outline-primary:hover {
  background-color: var(--accent-primary);
  color: white;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2);
}

.btn-outline-primary:active {
  background-color: var(--accent-secondary) !important;
  border-color: var(--accent-secondary) !important;
}

/* MIDI Player */
midi-player {
  border-radius: 0.5rem;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-bottom: 2rem;
}

/* MIDI Visualizer - DAW Style */
midi-visualizer {
  height: 400px !important;
  max-height: 400px !important;
  min-height: 300px;
  display: block;
  overflow-y: auto;
  background-color: var(--visualizer-bg);
  border: 2px solid var(--visualizer-border);
  border-radius: 2px;
  box-shadow: var(--shadow-glow-cyan), inset 0 0 50px rgba(0, 0, 0, 0.8);
  position: relative;
}

midi-visualizer::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--grid-pattern);
  pointer-events: none;
  opacity: 0.3;
}

/* Tablet & Mobile (<992px) */
@media (max-width: 991px) {
  midi-visualizer {
    height: 350px !important;
    max-height: 350px !important;
  }

  .hero-section {
    margin-bottom: 2rem;
  }

  .hero-content h1 {
    font-size: 2rem !important;
  }

  .main-container {
    padding-top: 1rem;
  }

  /* モバイルではワードリストを全表示（スクロールなし） */
  #button-container {
    max-height: none;
    overflow-y: visible;
  }

  .keyword-category-words {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 0.375rem;
  }
}

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

/* Dark Mode Inversion for html-midi-player (Shadow DOM workaround) */
[data-theme="dark"] midi-player {
  filter: invert(0.9) hue-rotate(180deg);
}

/* Piano Roll - ダークモード: 黒背景 */
[data-theme="dark"] midi-visualizer[type="piano-roll"] {
  filter: invert(0.95);
  box-shadow: var(--shadow-glow-cyan), inset 0 0 30px rgba(0, 0, 0, 0.8);
}

/* Score View - ダークモード: 黒背景・白譜面 */
[data-theme="dark"] midi-visualizer[type="staff"] {
  filter: invert(0.95);
  box-shadow: var(--shadow-glow-cyan), inset 0 0 30px rgba(0, 0, 0, 0.8);
}

/* ライトモード: 両方とも白背景 */
midi-visualizer[type="piano-roll"],
midi-visualizer[type="staff"] {
  background-color: #ffffff !important;
}

/* Dark Mode Toggle Button */
#theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1050;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s ease;
}

#theme-toggle:hover {
  transform: scale(1.1);
}

[data-theme="dark"] #theme-toggle {
  background-color: var(--bg-secondary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

/* Form Control Styling - 白背景で目立つように */
.form-control {
  font-size: 1.1rem !important;
  padding: 0.875rem 1rem !important;
  font-weight: 500;
  border: 2px solid var(--accent-cyan);
  background-color: #ffffff !important;
  color: #000000 !important;
  border-radius: 2px;
}

.form-control:focus {
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-glow-cyan);
  background-color: #ffffff !important;
}

/* Form Floating - ラベル位置調整 */
.form-floating > .form-control,
.form-floating > .form-select {
  padding-top: 1.75rem !important;
  padding-bottom: 0.75rem !important;
}

.form-floating > label {
  padding: 1rem 1rem;
  font-size: 0.9rem;
  color: #666666;
  font-weight: 500;
}

.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label,
.form-floating > .form-select:focus ~ label,
.form-floating > .form-select ~ label {
  opacity: 0.65;
  transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
}

/* Form Select Styling - 白背景で目立つように */
.form-select {
  border-radius: 2px;
  border: 2px solid var(--accent-cyan);
  background-color: #ffffff !important;
  color: #000000 !important;
  font-size: 1.1rem !important;
  padding: 0.875rem 3rem 0.875rem 1rem !important;
  font-weight: 600;
}

.form-select:focus {
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-glow-cyan);
  background-color: #ffffff !important;
}

/* Keyword Category Styles */
#button-container {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  padding: 1rem;
}

.keyword-category-header {
  width: 100%;
  margin-top: 1rem;
  margin-bottom: 0.75rem;
  padding: 0.5rem 0;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
}

.keyword-category-header:first-child {
  margin-top: 0;
}

.keyword-category-header::before {
  content: '';
  display: inline-block;
  width: 3px;
  height: 12px;
  background: var(--accent-primary);
  margin-right: 0.5rem;
  border-radius: 2px;
}

/* カテゴリ別カラー - Neon Style */
.keyword-category-emotion {
  color: var(--accent-magenta);
  text-shadow: 0 0 10px rgba(255, 0, 255, 0.5);
}

.keyword-category-emotion::before {
  background: var(--accent-magenta);
  box-shadow: 0 0 10px var(--accent-magenta);
}

.keyword-category-genre {
  color: var(--accent-purple);
  text-shadow: 0 0 10px rgba(139, 92, 246, 0.5);
}

.keyword-category-genre::before {
  background: var(--accent-purple);
  box-shadow: 0 0 10px var(--accent-purple);
}

.keyword-category-theory {
  color: var(--accent-green);
  text-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

.keyword-category-theory::before {
  background: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green);
}

/* カテゴリ別ボタン - Cyber Neon Style */
.btn-outline-emotion {
  border-color: var(--accent-magenta);
  color: var(--accent-magenta);
  background: rgba(255, 0, 255, 0.05);
  font-size: 0.7rem;
  padding: 0.375rem 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-outline-emotion:hover {
  background-color: var(--accent-magenta);
  border-color: var(--accent-magenta);
  color: #000;
  box-shadow: var(--shadow-glow-magenta);
  text-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
}

.btn-outline-emotion:active {
  background-color: var(--accent-magenta) !important;
  border-color: var(--accent-magenta) !important;
  transform: scale(0.95);
}

.btn-outline-genre {
  border-color: var(--accent-purple);
  color: var(--accent-purple);
  background: rgba(139, 92, 246, 0.05);
  font-size: 0.7rem;
  padding: 0.375rem 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-outline-genre:hover {
  background-color: var(--accent-purple);
  border-color: var(--accent-purple);
  color: #000;
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.6), 0 0 40px rgba(139, 92, 246, 0.3);
  text-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
}

.btn-outline-genre:active {
  background-color: var(--accent-purple) !important;
  border-color: var(--accent-purple) !important;
  transform: scale(0.95);
}

.btn-outline-theory {
  border-color: var(--accent-green);
  color: var(--accent-green);
  background: rgba(0, 255, 136, 0.05);
  font-size: 0.7rem;
  padding: 0.375rem 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-outline-theory:hover {
  background-color: var(--accent-green);
  border-color: var(--accent-green);
  color: #000;
  box-shadow: var(--shadow-glow-green);
  text-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
}

.btn-outline-theory:active {
  background-color: var(--accent-green) !important;
  border-color: var(--accent-green) !important;
  transform: scale(0.95);
}

.keyword-category-words {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 0.5rem;
  width: 100%;
  margin-bottom: 0.75rem;
}


/* Card Header - Cyber Style */
.card-header {
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-bottom: 2px solid var(--border-color);
  padding: 0.875rem 1.25rem;
  position: relative;
}

.card-header::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 30%;
  height: 2px;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
}

.card-header.bg-info {
  background: linear-gradient(135deg, #0d1117 0%, #161b22 100%) !important;
  border: none;
  border-bottom: 2px solid var(--accent-cyan);
  color: var(--accent-cyan) !important;
  text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.card-header.bg-success {
  background: linear-gradient(135deg, #0d1117 0%, #161b22 100%) !important;
  border: none;
  border-bottom: 2px solid var(--accent-green);
  color: var(--accent-green) !important;
  text-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

/* Download Button */
#downloadLink {
  box-shadow: var(--shadow-sm);
}

/* Scrollbar Styling */
#button-container::-webkit-scrollbar {
  width: 8px;
}

#button-container::-webkit-scrollbar-track {
  background: var(--bg-primary);
  border-radius: 4px;
}

#button-container::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

#button-container::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* Small Mobile (<576px) */
@media (max-width: 576px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .hero-section .row {
    padding: 2rem 1rem !important;
  }

  form {
    padding: 1.5rem !important;
  }
}