/**
 * Gravity Chimes - Tool Specific Scoped Stylesheet
 * Copyright (c) 2026 kixking. All rights reserved.
 * 
 * CSS分離アーキテクチャ規約に準拠:
 * 基本CSS（style.css）の肥大化・カスケード汚染を防ぐため、
 * Gravity Chimes 固有のスタイルはすべて当ファイル（gc-* プレフィックス）で完全独立管理。
 */

/* ==========================================================================
   1. ツール共通レイアウト & テーマ
   ========================================================================== */

.gc-body {
  background-color: var(--bg-color, #0b0f19);
  color: var(--text-color, #e6edf3);
}

.gc-main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.5rem 1rem 3.5rem;
}

/* ヘッダー・導入カード */
.gc-hero-card {
  background: var(--card-bg, rgba(17, 24, 39, 0.75));
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
  border-radius: 16px;
  padding: 1.75rem 2rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.28);
  position: relative;
  overflow: hidden;
}

.gc-hero-card::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(0, 230, 255, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.gc-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #00f0ff;
  background: rgba(0, 240, 255, 0.1);
  padding: 0.3rem 0.75rem;
  border-radius: 9999px;
  border: 1px solid rgba(0, 240, 255, 0.25);
  margin-bottom: 0.85rem;
}

.gc-hero-badge-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #00f0ff;
  box-shadow: 0 0 10px #00f0ff;
  animation: gc-pulse 2s infinite;
}

@keyframes gc-pulse {
  0% { transform: scale(0.9); opacity: 0.6; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.6; }
}

.gc-title {
  font-family: var(--font-display, "Plus Jakarta Sans", sans-serif);
  font-size: clamp(1.6rem, 3.5vw, 2.3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
  color: var(--text-color, #ffffff);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.gc-desc {
  color: var(--text-muted, #94a3b8);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0 0 1rem;
  max-width: 800px;
}

/* オーディオ開始通知バナー */
.gc-audio-prompt {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0, 240, 255, 0.08);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: 10px;
  padding: 0.75rem 1.25rem;
  font-size: 0.88rem;
  color: var(--text-color, #e2e8f0);
}

.gc-audio-prompt-btn {
  background: linear-gradient(135deg, #00d2ff 0%, #00f0ff 100%);
  color: #05101a;
  font-weight: 600;
  font-size: 0.85rem;
  border: none;
  border-radius: 8px;
  padding: 0.45rem 1rem;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.35);
}

.gc-audio-prompt-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 22px rgba(0, 240, 255, 0.55);
}

/* ==========================================================================
   2. キャンバス・プレイグラウンド領域
   ========================================================================== */

.gc-playground {
  position: relative;
  background: #080b12;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 30px rgba(0, 240, 255, 0.06);
  margin-bottom: 1.5rem;
}

.gc-canvas-container {
  position: relative;
  width: 100%;
  height: 520px;
  max-height: 70vh;
  touch-action: none;
  cursor: crosshair;
}

#gravity-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* キャンバス上のオーバーレイ・フローティングツールバー */
.gc-floating-toolbar {
  position: absolute;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.4rem;
  background: rgba(13, 18, 30, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0.35rem 0.5rem;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
  z-index: 10;
  max-width: 90%;
  overflow-x: auto;
}

.gc-tool-btn {
  background: transparent;
  border: none;
  color: #94a3b8;
  padding: 0.45rem 0.85rem;
  border-radius: 9999px;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.18s ease;
  white-space: nowrap;
}

.gc-tool-btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

.gc-tool-btn.active {
  color: #06111e;
  background: #00f0ff;
  font-weight: 600;
  box-shadow: 0 0 14px rgba(0, 240, 255, 0.5);
}

/* キャンバス右上の統計・状態バッジ */
.gc-canvas-stats {
  position: absolute;
  bottom: 0.85rem;
  right: 1rem;
  display: flex;
  gap: 0.6rem;
  font-size: 0.76rem;
  color: #64748b;
  font-family: var(--font-mono, monospace);
  background: rgba(10, 14, 24, 0.7);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  pointer-events: none;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* ==========================================================================
   3. コントロールパネル
   ========================================================================== */

.gc-controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.gc-panel-card {
  background: var(--card-bg, rgba(17, 24, 39, 0.75));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
  border-radius: 14px;
  padding: 1.25rem 1.4rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

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

.gc-panel-title {
  font-size: 0.92rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #94a3b8;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
}

/* プリセット選択ボタングループ */
.gc-preset-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem;
}

.gc-preset-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 0.75rem;
  color: var(--text-color, #e2e8f0);
  font-size: 0.85rem;
  cursor: pointer;
  text-align: left;
  transition: all 0.18s ease;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.gc-preset-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(0, 240, 255, 0.35);
  transform: translateY(-1px);
}

.gc-preset-btn.active {
  background: rgba(0, 240, 255, 0.12);
  border-color: #00f0ff;
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.2);
}

.gc-preset-name {
  font-weight: 600;
  color: #ffffff;
}

.gc-preset-desc {
  font-size: 0.72rem;
  color: #94a3b8;
}

/* スライダー & セレクトコントロール */
.gc-control-row {
  margin-bottom: 1rem;
}

.gc-control-row:last-child {
  margin-bottom: 0;
}

.gc-control-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.84rem;
  color: var(--text-muted, #cbd5e1);
  margin-bottom: 0.4rem;
}

.gc-control-val {
  font-family: var(--font-mono, monospace);
  font-size: 0.8rem;
  color: #00f0ff;
  font-weight: 600;
}

.gc-slider {
  width: 100%;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: rgba(255, 255, 255, 0.12);
  border-radius: 4px;
  outline: none;
}

.gc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #00f0ff;
  cursor: pointer;
  box-shadow: 0 0 10px #00f0ff;
  transition: transform 0.1s;
}

.gc-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.gc-select {
  width: 100%;
  padding: 0.55rem 0.85rem;
  background: rgba(10, 14, 24, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  color: var(--text-color, #e2e8f0);
  font-size: 0.86rem;
  outline: none;
  cursor: pointer;
}

.gc-select:focus {
  border-color: #00f0ff;
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
}

/* 重力ピルボタン群 */
.gc-pill-group {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.gc-pill-btn {
  flex: 1;
  min-width: 60px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #94a3b8;
  padding: 0.45rem 0.6rem;
  border-radius: 8px;
  font-size: 0.8rem;
  cursor: pointer;
  text-align: center;
  transition: all 0.15s ease;
}

.gc-pill-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.gc-pill-btn.active {
  color: #00f0ff;
  background: rgba(0, 240, 255, 0.15);
  border-color: rgba(0, 240, 255, 0.4);
  font-weight: 600;
}

/* アクションバー（再生、クリア、録音） */
.gc-action-bar {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  background: var(--card-bg, rgba(17, 24, 39, 0.75));
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.08));
  border-radius: 14px;
  padding: 1rem 1.4rem;
  margin-bottom: 2rem;
}

.gc-action-left {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.gc-action-right {
  display: flex;
  gap: 0.6rem;
}

.gc-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  border-radius: 8px;
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s ease;
  border: 1px solid transparent;
}

.gc-btn-primary {
  background: linear-gradient(135deg, #00d2ff 0%, #00a2ff 100%);
  color: #05101a;
  box-shadow: 0 0 16px rgba(0, 210, 255, 0.35);
}

.gc-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 22px rgba(0, 210, 255, 0.5);
}

.gc-btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--text-color, #e2e8f0);
}

.gc-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.22);
}

.gc-btn-danger {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.3);
  color: #fca5a5;
}

.gc-btn-danger:hover {
  background: rgba(239, 68, 68, 0.22);
}

.gc-btn-rec {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.35);
  color: #f87171;
}

.gc-btn-rec.recording {
  background: #ef4444;
  color: #ffffff;
  box-shadow: 0 0 20px rgba(239, 68, 68, 0.6);
  animation: gc-rec-flash 1.2s infinite;
}

@keyframes gc-rec-flash {
  0% { opacity: 1; }
  50% { opacity: 0.7; }
  100% { opacity: 1; }
}

/* ==========================================================================
   4. レスポンシブ最適化
   ========================================================================== */

@media (max-width: 768px) {
  .gc-main {
    padding: 1rem 0.75rem 2.5rem;
  }

  .gc-hero-card {
    padding: 1.25rem 1rem;
  }

  .gc-canvas-container {
    height: 420px;
  }

  .gc-preset-group {
    grid-template-columns: 1fr;
  }

  .gc-floating-toolbar {
    top: 0.5rem;
    padding: 0.25rem 0.4rem;
  }

  .gc-tool-btn {
    padding: 0.35rem 0.6rem;
    font-size: 0.75rem;
  }

  .gc-action-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .gc-action-left,
  .gc-action-right {
    width: 100%;
    justify-content: stretch;
  }

  .gc-action-left .gc-btn,
  .gc-action-right .gc-btn {
    flex: 1;
    justify-content: center;
  }
}