/* ===== 配色生成器 ===== */
.generator-panel {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 24px;
  align-items: start;
}

/* 控制面板 */
.gen-controls {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: all var(--transition);
  box-shadow: var(--shadow);
}
.gen-controls:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--accent-soft);
}

.gen-row { display: flex; flex-direction: column; gap: 6px; }
.gen-row label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.gen-row input[type="range"] {
  accent-color: var(--accent);
  width: 100%;
  cursor: pointer;
  height: 6px;
}

/* 配色理论按钮组 */
.theory-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.theory-btn {
  padding: 9px 6px;
  border: 1.5px solid var(--border);
  background: var(--surface-soft);
  border-radius: var(--radius-xs);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-spring);
  text-align: center;
  color: var(--text-muted);
}
.theory-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-gradient-soft);
  transform: translateY(-1px);
}
.theory-btn.active {
  background: var(--accent-gradient);
  color: #fff;
  border-color: transparent;
  box-shadow: var(--shadow-accent);
}

/* 生成器操作按钮 */
.gen-actions {
  display: flex;
  gap: 8px;
  padding-top: 2px;
}
.gen-actions .btn-primary { flex: 1; }
.gen-actions .btn-secondary {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.gen-actions .btn-secondary [data-icon] { width: 15px; height: 15px; }

/* 预览区 */
.gen-preview {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  box-shadow: var(--shadow);
}
.gen-preview:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--accent-soft);
}

.gen-preview-colors {
  display: flex;
  min-height: 280px;
}
.gen-preview-colors .gen-swatch {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding: 20px 8px;
  gap: 8px;
  cursor: pointer;
  transition: all var(--transition-spring);
  position: relative;
}
.gen-preview-colors .gen-swatch:hover { flex: 1.6; }
.gen-preview-colors .gen-swatch:active { flex: 2.2; }

.gen-swatch-code {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 650;
  padding: 5px 10px;
  background: rgba(0,0,0,.18);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border-radius: var(--radius-xs);
  color: #fff;
  text-shadow: 0 1px 2px rgba(0,0,0,.3);
  transition: transform var(--transition), background var(--transition);
  letter-spacing: 0.3px;
}
.gen-swatch:hover .gen-swatch-code {
  transform: scale(1.06);
  background: rgba(0,0,0,.3);
}
.gen-swatch-rgb {
  font-size: 11px;
  color: rgba(255,255,255,.82);
  font-weight: 500;
}

/* 预览操作栏 */
.gen-preview-actions {
  display: flex;
  gap: 8px;
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  transition: border-color var(--transition-slow);
}
.gen-preview-actions .btn-small [data-icon] { width: 13px; height: 13px; }