/* ===== 专业打击乐编排器样式 ===== */
/* 文件名: professional-drum-machine.css */

/* 基础变量定义 */
:root {
  --primary-color: #ff6b35;
  --secondary-color: #1e88e5;
  --accent-color: #ffd54f;
  --dark-bg: #121212;
  --darker-bg: #0a0a0a;
  --card-bg: #1e1e1e;
  --text-primary: #ffffff;
  --text-secondary: #b0b0b0;
  --success-color: #4caf50;
  --warning-color: #ff9800;
  --danger-color: #f44336;
  --border-radius: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --glow: 0 0 20px rgba(255, 107, 53, 0.5);
}

/* 基础重置与字体 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: 'Inter', sans-serif;
  background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  padding: 20px;
}

/* 容器样式 */
.drum-machine-container {
  max-width: 1200px;
  margin: 0 auto;
  background: rgba(30, 30, 30, 0.8);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 头部样式 */
.drum-machine-header {
  background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
  padding: 25px 30px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.drum-machine-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="rgba(255,255,255,0.1)"/></svg>');
  background-size: cover;
}

.drum-machine-title {
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 8px;
  position: relative;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.drum-machine-subtitle {
  font-size: 1.1rem;
  opacity: 0.9;
  font-weight: 400;
  position: relative;
}

/* 鼓组音色选择区域 */
.drum-sounds-section {
  padding: 25px 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.section-title {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title::before {
  content: '';
  display: block;
  width: 4px;
  height: 20px;
  background: var(--primary-color);
  border-radius: 2px;
}

.drum-pads-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 15px;
}

.drum-pad {
  background: linear-gradient(145deg, #252525, #1a1a1a);
  border: none;
  border-radius: var(--border-radius);
  padding: 20px 15px;
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 5px 5px 10px #0d0d0d, -5px -5px 10px #2a2a2a;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.drum-pad::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0) 100%);
  opacity: 0;
  transition: var(--transition);
}

.drum-pad:hover {
  transform: translateY(-5px);
  box-shadow: 8px 8px 16px #0a0a0a, -8px -8px 16px #2e2e2e;
}

.drum-pad:hover::before {
  opacity: 1;
}

.drum-pad.active {
  background: linear-gradient(145deg, var(--primary-color), #e55a2b);
  box-shadow: inset 5px 5px 10px #cc5526, inset -5px -5px 10px #ff7144;
}

.drum-pad.playing {
  animation: pulse 0.3s ease;
  box-shadow: var(--glow);
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.drum-icon {
  font-size: 1.8rem;
  margin-bottom: 5px;
}

/* 节奏编排器 */
.sequencer-section {
  padding: 25px 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sequencer-container {
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--border-radius);
  padding: 20px;
  overflow-x: auto;
}

.sequencer-grid {
  display: grid;
  grid-template-columns: 120px repeat(16, 1fr);
  gap: 8px;
  min-width: 900px;
}

.step-label {
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  padding: 12px 8px;
  font-size: 0.9rem;
}

.drum-row-label {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  padding: 12px 15px;
  font-size: 0.9rem;
  gap: 8px;
}

.drum-row-label::before {
  content: '';
  display: block;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--primary-color);
}

.step-cell {
  height: 50px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
}

.step-cell:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: scale(1.05);
}

.step-cell.active {
  background: var(--primary-color);
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 0 15px rgba(255, 107, 53, 0.5);
}

.step-cell.playing {
  background: var(--secondary-color);
  border-color: rgba(255, 255, 255, 0.5);
  box-shadow: 0 0 15px rgba(30, 136, 229, 0.5);
}

.step-cell.active.playing {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  box-shadow: 0 0 20px rgba(255, 107, 53, 0.7);
}

/* 控制面板 */
.controls-section {
  padding: 25px 30px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
}

.control-btn {
  padding: 14px 20px;
  background: linear-gradient(145deg, #252525, #1a1a1a);
  color: var(--text-primary);
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  transition: var(--transition);
  box-shadow: 5px 5px 10px #0d0d0d, -5px -5px 10px #2a2a2a;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.control-btn:hover {
  transform: translateY(-3px);
  box-shadow: 8px 8px 16px #0a0a0a, -8px -8px 16px #2e2e2e;
}

.control-btn.play {
  background: linear-gradient(145deg, var(--success-color), #3d8b40);
}

.control-btn.stop {
  background: linear-gradient(145deg, var(--danger-color), #c62828);
}

.control-btn.record {
  background: linear-gradient(145deg, var(--warning-color), #e65100);
}

.control-btn.save {
  background: linear-gradient(145deg, var(--secondary-color), #1565c0);
}

/* 节奏模式选择器 */
.patterns-section {
  padding: 25px 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.pattern-selector {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}

.pattern-btn {
  padding: 12px 15px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius);
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  font-weight: 500;
}

.pattern-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-3px);
}

.pattern-btn.active {
  background: var(--primary-color);
  border-color: var(--primary-color);
  box-shadow: 0 5px 15px rgba(255, 107, 53, 0.3);
}

/* 音效控制 */
.mixer-section {
  padding: 25px 30px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
}

.slider-container {
  margin-bottom: 15px;
}

.slider-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-weight: 500;
}

.slider-value {
  color: var(--accent-color);
  font-weight: 600;
}

.slider {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.1);
  outline: none;
  -webkit-appearance: none;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

.slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}

/* 输出日志 */
.output-section {
  padding: 25px 30px;
  background: rgba(0, 0, 0, 0.3);
}

.output-container {
  background: rgba(0, 0, 0, 0.5);
  border-radius: var(--border-radius);
  padding: 20px;
  max-height: 200px;
  overflow-y: auto;
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
}

.output-line {
  margin: 8px 0;
  padding: 10px 15px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 6px;
  border-left: 3px solid var(--primary-color);
  animation: fadeIn 0.3s ease;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
  .drum-machine-title {
    font-size: 2.2rem;
  }
  
  .drum-pads-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .sequencer-grid {
    grid-template-columns: 80px repeat(8, 1fr);
    min-width: 600px;
  }
  
  .controls-section {
    grid-template-columns: 1fr;
  }
  
  .pattern-selector {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 加载动画 */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* 状态指示器 */
.status-indicator {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  margin-right: 8px;
}

.status-ready { background: var(--success-color); }
.status-working { background: var(--warning-color); }
.status-error { background: var(--danger-color); }