/* 英文单词发音练习 —— 样式
 * 变量、顶栏、卡片、按钮、选项区沿用 clock-learning 的规范，保持整个工具箱观感一致。
 */

:root {
  --bg: #f6f8fb;
  --card: #ffffff;
  --border: #e6e9ef;
  --text: #1f2937;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-soft: #eff4ff;
  --ok: #16a34a;
  --ok-soft: #f0fdf4;
  --bad: #dc2626;
  --warn: #b45309;
  --shadow: 0 1px 3px rgba(16,24,40,.06), 0 8px 24px rgba(16,24,40,.05);

  /* 口型调色板 */
  --skin: #ffd9b8;
  --skin-line: #e8b48c;
  --hair: #6b4a35;
  --lip: #e2697a;
  --lip-line: #c14b5e;
  --cavity: #7b3540;
  --tongue: #f2a0a8;
  --tooth: #ffffff;
  --tooth-line: #cdd5df;
  --palate: #f0b49a;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-text-size-adjust: 100%;
}

/* 顶部栏 */
.topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 24px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}
.topbar h1 { font-size: 18px; margin: 0; font-weight: 600; }
.back { color: var(--muted); text-decoration: none; font-size: 14px; white-space: nowrap; }
.back:hover { color: var(--accent); }

/* 布局：左（舞台 + 卡片/词表） / 右（进度） / 底部整行（选项） */
.layout {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 24px 64px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 24px;
  align-items: start;
}
.stage-pane { min-width: 0; }
.panel { align-self: stretch; }
.panel .card { position: sticky; top: 20px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px 24px 24px;
  box-shadow: var(--shadow);
}
.card h2 { margin: 0 0 6px; font-size: 16px; }
.hint { color: var(--muted); font-size: 12.5px; margin: 0 0 16px; }

/* ---------------- 模式切换 ---------------- */
.mode-tabs {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  margin-bottom: 18px;
  background: #f1f4f9;
  border-radius: 11px;
}
.tab {
  padding: 7px 18px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: background .15s, color .15s;
}
.tab:hover { color: var(--text); }
.tab.on { background: var(--card); color: var(--accent); font-weight: 600; box-shadow: 0 1px 2px rgba(16,24,40,.08); }

/* ---------------- 口型舞台 ---------------- */
.stage-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 16px;
  align-items: end;
  padding: 8px 0 4px;
}
.face-fig { margin: 0; display: flex; flex-direction: column; align-items: center; gap: 6px; }
.face-fig svg { width: 100%; height: auto; max-height: 250px; display: block; }
.face-fig figcaption { font-size: 12px; color: var(--muted); letter-spacing: .3px; }

/* — 正脸 — */
.ff-hair { fill: var(--hair); }
.ff-head { fill: var(--skin); stroke: var(--skin-line); stroke-width: 2; }
.ff-ear { fill: var(--skin); stroke: var(--skin-line); stroke-width: 2; }
.ff-brow { fill: none; stroke: var(--hair); stroke-width: 4.5; stroke-linecap: round; }
.ff-eye ellipse { fill: #fff; stroke: var(--skin-line); stroke-width: 1.5; }
.ff-eye circle { fill: #33445c; }
.ff-nose { fill: none; stroke: var(--skin-line); stroke-width: 3; stroke-linecap: round; }
.ff-cheek { fill: #ffb3a7; opacity: .38; }

#ffLips { fill: var(--lip); stroke: var(--lip-line); stroke-width: 1.4; }
#ffCavity { fill: var(--cavity); }
#ffTeeth { fill: var(--tooth); stroke: var(--tooth-line); stroke-width: .8; }
#ffTongue { fill: var(--tongue); }
/* 上齿咬下唇时，牙齿画在嘴唇之上 */
#ffTeeth.on-lip { fill: var(--tooth); stroke: var(--tooth-line); }
.ff-voice { opacity: 0; transition: opacity .18s ease; }
.ff-voice path { fill: none; stroke: var(--accent); stroke-width: 2.5; stroke-linecap: round; }
.ff-voice.on { opacity: .85; }

/* — 侧脸 — */
.pf-head { fill: var(--skin); stroke: var(--skin-line); stroke-width: 2; }
.pf-nose { fill: var(--skin); stroke: var(--skin-line); stroke-width: 2; }
.pf-palate { fill: none; stroke: var(--palate); stroke-width: 3; stroke-linecap: round; }
.pf-cavity { fill: var(--cavity); }
.pf-tongue { fill: var(--tongue); stroke: #dd8b93; stroke-width: 1.2; }
.pf-lip { fill: var(--lip); stroke: var(--lip-line); stroke-width: 1.4; }
.pf-teeth { fill: var(--tooth); stroke: var(--tooth-line); stroke-width: 1; }
/* 侧脸把嘴部放大到右侧一块，眼鼻只作淡淡示意 */
.face-side svg { position: relative; }

/* ---------------- 音素提示条 ---------------- */
.cue-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  min-height: 46px;
  margin: 6px 0 18px;
  padding: 9px 18px;
  border: 1px solid var(--border);
  border-radius: 13px;
  background: linear-gradient(180deg, #fbfcff, #f4f7ff);
  transition: opacity .2s ease;
}
.cue-bar.off { opacity: .45; }
.cue-ph {
  font-family: "Segoe UI", "DejaVu Sans", "Lucida Sans Unicode", sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
  min-width: 34px;
  text-align: center;
}
.cue-tip { font-size: 13.5px; color: var(--text); }
.cue-bar.idle .cue-ph { color: #b6c2d4; }
.cue-bar.idle .cue-tip { color: var(--muted); }

/* ---------------- 单词卡片 ---------------- */
.word-card {
  padding: 8px 0 4px;
  text-align: center;
}
.wc-top {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.wc-emoji { font-size: 30px; line-height: 1; }
.wc-word {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: .5px;
  line-height: 1.15;
  color: #141f33;
}
.wc-phonetic {
  margin-top: 4px;
  font-family: "Segoe UI", "DejaVu Sans", "Lucida Sans Unicode", sans-serif;
  font-size: 17px;
  color: var(--muted);
}
.wc-meaning { margin-top: 6px; font-size: 18px; color: #33445c; }
.wc-sentence {
  margin-top: 12px;
  font-size: 14.5px;
  color: var(--muted);
  font-style: italic;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px dashed var(--border);
}
.btn-slow { color: #b45309; border-color: #fed7aa; background: #fff7ed; font-weight: 600; }
.btn-slow:hover { background: #ffedd5; border-color: #f97316; color: #9a3412; }

/* 完成卡片 */
.done-card { text-align: center; padding: 14px 0 6px; }
.done-emoji { font-size: 46px; line-height: 1; }
.done-title { margin-top: 8px; font-size: 20px; font-weight: 700; color: var(--ok); }
.done-sub { margin: 6px 0 16px; font-size: 14px; color: var(--muted); }

/* ---------------- 词表点读 ---------------- */
.word-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 62vh;
  overflow-y: auto;
  padding-right: 4px;
}
.wl-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 11px;
  background: #fcfdff;
  transition: border-color .15s, background .15s, transform .05s;
}
.wl-row:hover { border-color: #c7d9fb; background: var(--accent-soft); }
.wl-row.playing { border-color: var(--accent); background: var(--accent-soft); box-shadow: 0 0 0 3px rgba(37,99,235,.1); }
.wl-row.done { background: var(--ok-soft); border-color: #bbf7d0; }
.wl-emoji { font-size: 22px; line-height: 1; flex-shrink: 0; width: 28px; text-align: center; }
.wl-main { flex: 1; min-width: 0; display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.wl-word { font-size: 17px; font-weight: 600; }
.wl-phon { font-family: "Segoe UI", "DejaVu Sans", "Lucida Sans Unicode", sans-serif; font-size: 13px; color: var(--muted); }
.wl-meaning { font-size: 13.5px; color: #4b5b73; }
.wl-tick { flex-shrink: 0; font-size: 15px; color: var(--ok); opacity: 0; width: 16px; text-align: center; }
.wl-row.done .wl-tick { opacity: 1; }
.wl-play {
  flex-shrink: 0;
  width: 36px; height: 36px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--card);
  font-size: 15px;
  cursor: pointer;
  transition: background .15s, border-color .15s, transform .05s;
}
.wl-play:hover { border-color: var(--accent); background: var(--accent-soft); }
.wl-play:active { transform: scale(.94); }
.wl-row.done .wl-play { border-color: #bbf7d0; }

/* ---------------- 右栏：进度 ---------------- */
.progress-wrap { margin: 4px 0 16px; }
.progress-bar {
  height: 9px;
  border-radius: 999px;
  background: #eef2f7;
  overflow: hidden;
}
.progress-bar span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, #22c55e, #16a34a);
  transition: width .3s ease;
}
.progress-text { margin-top: 8px; font-size: 13px; color: var(--muted); }

.panel-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.panel-actions .btn { flex: 1 1 auto; font-size: 13px; padding: 8px 10px; }

.tip-box {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--border);
  font-size: 13px;
  color: #4b5b73;
}
.tip-box p { margin: 0 0 10px; }
.tip-box p:last-child { margin-bottom: 0; }
.tip-box b { color: var(--accent); }
.tip-caveat { color: var(--muted); font-size: 12.5px; }
.tip-caveat b { color: var(--warn); }

.fallback-note {
  margin-top: 14px;
  padding: 9px 12px;
  border-radius: 10px;
  background: #fffbeb;
  border: 1px solid #fde68a;
  font-size: 12.5px;
  color: #92400e;
}

/* ---------------- 底部选项 ---------------- */
.options-card {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 34px;
  padding: 16px 24px;
}
.options-group { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.opts-title { font-size: 12.5px; color: var(--muted); letter-spacing: 1px; }
.opts-saved { font-size: 12px; color: #9aa3b2; }

.check { display: flex; align-items: center; gap: 7px; color: var(--text); font-size: 14px; cursor: pointer; }
.check input { accent-color: var(--accent); width: 16px; height: 16px; }
.mini { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.mini select {
  font: inherit;
  font-size: 13px;
  padding: 5px 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  max-width: 190px;
}
.mini select:hover { border-color: var(--accent); }

/* ---------------- 窄屏 ---------------- */
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; padding: 18px 14px 52px; gap: 16px; }
  .panel .card { position: static; }

  /* 两张脸仍并排，但整体缩小、靠上，让口型和单词同屏可见 */
  .stage-wrap { gap: 10px; }
  .face-fig svg { max-height: 168px; }
  .face-fig figcaption { font-size: 11px; }

  .wc-word { font-size: 33px; }
  .wc-emoji { font-size: 26px; }
  .wc-meaning { font-size: 16px; }

  .cue-bar { min-height: 42px; padding: 8px 12px; gap: 8px; margin-bottom: 14px; }
  .cue-ph { font-size: 18px; }
  .cue-tip { font-size: 12.5px; }

  .card-actions { gap: 8px; }
  .card-actions .btn { flex: 1 1 calc(50% - 8px); padding: 9px 10px; font-size: 13.5px; }

  .word-list { max-height: none; }
  .options-card { flex-direction: column; align-items: flex-start; gap: 12px; padding: 14px 16px; }
  .options-group { gap: 12px; }
  .mini select { max-width: 150px; }
}

@media (max-width: 420px) {
  .wl-phon { display: none; }
}

/* 系统开启「减少动态效果」：口型不做缓动过渡，直接切到目标形状 */
@media (prefers-reduced-motion: reduce) {
  .wl-row, .btn, .wl-play { transition: none; }
}