/**
 * suno-lyrics.css · Suno 字幕三层 UX
 * suno-lyrics-css-marker-v1
 *
 * Layer 1 · 静态歌词面板
 * Layer 2 · 卡拉 OK 逐字高亮
 * Layer 3 · 小浮窗（右下固定）
 *
 * 设计规范：CCFF00 accent / glassmorphism / 与 suno-workstation.css 同风格
 * 2026-05-13 v1 · engineer 创建
 */

/* ══════════════════════════════════════════════════
   变量
══════════════════════════════════════════════════ */
:root {
  --sl-accent:        #CCFF00;
  --sl-accent-glow:   rgba(204, 255, 0, 0.25);
  --sl-bg-panel:      rgba(255,255,255,0.03);
  --sl-bg-karaoke:    rgba(10,10,18,0.95);
  --sl-border:        rgba(255,255,255,0.08);
  --sl-text:          rgba(255,255,255,0.72);
  --sl-text-dim:      rgba(255,255,255,0.38);
  --sl-radius:        12px;
}

/* ══════════════════════════════════════════════════
   Layer 1 · 歌词面板容器
══════════════════════════════════════════════════ */
.sl-panel {
  margin-top: 14px;
  border-top: 1px solid var(--sl-border);
  padding-top: 12px;
}

/* ── 面板头部（按钮行）──────────────────────────── */
.sl-header {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.sl-toggle-btn,
.sl-karaoke-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: var(--sl-bg-panel);
  border: 1px solid var(--sl-border);
  border-radius: 20px;
  color: var(--sl-text);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.sl-toggle-btn:hover,
.sl-karaoke-btn:hover {
  border-color: var(--sl-accent);
  color: var(--sl-accent);
}

.sl-toggle-btn[aria-expanded="true"] {
  border-color: rgba(204,255,0,0.4);
  color: var(--sl-accent);
}

.sl-badge-free {
  font-size: 10px;
  padding: 1px 5px;
  background: rgba(204,255,0,0.12);
  color: var(--sl-accent);
  border-radius: 6px;
  border: 1px solid rgba(204,255,0,0.25);
  letter-spacing: 0.2px;
}

/* ── 静态歌词体 ─────────────────────────────────── */
.sl-static-body {
  margin-top: 10px;
  padding: 14px 16px;
  background: var(--sl-bg-panel);
  border: 1px solid var(--sl-border);
  border-radius: var(--sl-radius);
  backdrop-filter: blur(20px);
  max-height: 260px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(204,255,0,0.25) transparent;
}

.sl-static-body::-webkit-scrollbar {
  width: 4px;
}
.sl-static-body::-webkit-scrollbar-track {
  background: transparent;
}
.sl-static-body::-webkit-scrollbar-thumb {
  background: rgba(204,255,0,0.25);
  border-radius: 2px;
}

.sl-lyric-line {
  font-size: 14px;
  line-height: 1.85;
  color: var(--sl-text);
  margin: 0;
  padding: 1px 0;
}

.sl-line-gap {
  height: 8px;
}

.sl-loading {
  font-size: 12px;
  color: var(--sl-text-dim);
  text-align: center;
  padding: 16px 0;
  animation: sl-pulse 1.4s ease-in-out infinite;
}

.sl-empty {
  font-size: 12px;
  color: var(--sl-text-dim);
  text-align: center;
  padding: 16px 0;
  font-style: italic;
}

@keyframes sl-pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* ══════════════════════════════════════════════════
   Layer 2 · 卡拉 OK 逐字体
══════════════════════════════════════════════════ */
.sl-karaoke-body {
  margin-top: 10px;
  padding: 14px 16px;
  background: rgba(10,10,18,0.88);
  border: 1px solid rgba(204,255,0,0.15);
  border-radius: var(--sl-radius);
  backdrop-filter: blur(24px);
  max-height: 200px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(204,255,0,0.2) transparent;
}

.sl-karaoke-body::-webkit-scrollbar {
  width: 3px;
}
.sl-karaoke-body::-webkit-scrollbar-thumb {
  background: rgba(204,255,0,0.2);
  border-radius: 2px;
}

.sl-karaoke-scroll {
  display: flex;
  flex-wrap: wrap;
  gap: 2px 6px;
  line-height: 1.9;
}

/* 每个逐字词 */
.sl-kw {
  display: inline-block;
  font-size: 15px;
  color: rgba(255,255,255,0.35);
  border-radius: 4px;
  padding: 0 1px;
  transition: color 0.18s ease, text-shadow 0.18s ease, transform 0.15s ease;
  cursor: default;
}

.sl-kw-active {
  color: var(--sl-accent);
  text-shadow: 0 0 14px var(--sl-accent-glow), 0 0 6px rgba(204,255,0,0.5);
  transform: scale(1.12);
  font-weight: 700;
}

/* 降级：无 timing 时显示静态歌词 */
.sl-karaoke-fallback p {
  font-size: 13px;
  line-height: 1.8;
  color: var(--sl-text-dim);
  margin: 0;
}

/* ══════════════════════════════════════════════════
   Layer 3 · 小浮窗（右下固定）
══════════════════════════════════════════════════ */
.sl-floating {
  position: fixed;
  bottom: 24px;
  right: 20px;
  width: 240px;
  background: rgba(10,10,18,0.96);
  border: 1px solid rgba(204,255,0,0.22);
  border-radius: 14px;
  padding: 10px 14px 12px;
  z-index: 99998;
  backdrop-filter: blur(24px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.55), 0 0 0 1px rgba(204,255,0,0.08);
  animation: sl-float-in 0.28s cubic-bezier(0.34,1.56,0.64,1);
}

@keyframes sl-float-in {
  from { opacity: 0; transform: translateY(12px) scale(0.95); }
  to   { opacity: 1; transform: translateY(0)   scale(1); }
}

.sl-floating-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.sl-floating-title {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  color: var(--sl-text-dim);
  letter-spacing: 0.3px;
}

.sl-floating-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  background: transparent;
  border: none;
  border-radius: 50%;
  color: var(--sl-text-dim);
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
  padding: 0;
}
.sl-floating-close:hover {
  color: var(--sl-accent);
  background: rgba(204,255,0,0.08);
}

.sl-floating-line {
  font-size: 14px;
  font-weight: 600;
  color: var(--sl-accent);
  text-shadow: 0 0 10px var(--sl-accent-glow);
  min-height: 22px;
  letter-spacing: 0.5px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ══════════════════════════════════════════════════
   响应式：手机端压缩浮窗
══════════════════════════════════════════════════ */
@media (max-width: 480px) {
  .sl-floating {
    width: calc(100vw - 32px);
    right: 16px;
    bottom: 16px;
  }

  .sl-static-body {
    max-height: 200px;
  }

  .sl-karaoke-body {
    max-height: 160px;
  }
}