/* ===== SpecEnvoy Edu — Chinese tools — shared styles (scoped .cn-*) ===== */
.cn-wide { max-width: 900px; }
.cn-lead { color: var(--muted); font-size: 16.5px; max-width: 680px; margin: -4px 0 16px; }

/* a Chinese font stack that renders simplified characters cleanly + a "kai"
   (textbook / handwriting) feel where we want it */
.cn-hanzi { font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif; }
.cn-kai { font-family: "Kaiti SC", "STKaiti", "KaiTi", "PingFang SC", serif; }

/* tool sub-nav chips (on the hub + between tools) */
.cn-tools { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 18px; }
.cn-tools a { font-size: 13.5px; color: var(--muted); text-decoration: none; border: 1px solid var(--border);
  background: var(--card); border-radius: 999px; padding: 7px 14px; }
.cn-tools a:hover { color: var(--ink); border-color: rgba(91,134,236,.5); }
.cn-tools a.on { color: #fff; background: var(--accent); border-color: var(--accent); }

/* lesson picker */
.cn-pick { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 6px 0 14px; }
.cn-pick .lbl { font-size: 13px; color: var(--muted); }
.cn-btn { font: inherit; font-size: 14px; font-weight: 600; color: var(--ink); background: var(--card);
  border: 1px solid var(--border); border-radius: 999px; padding: 8px 15px; cursor: pointer;
  -webkit-tap-highlight-color: transparent; }
.cn-btn:hover { background: rgba(255,255,255,.08); }
.cn-btn.on { background: var(--accent); border-color: var(--accent); color: #fff; }
.cn-btn.sm { padding: 6px 12px; font-size: 13px; }
.cn-btn.play { background: var(--accent); border-color: var(--accent); color: #fff; }
.cn-btn:disabled { opacity: .45; cursor: default; }
.cn-btns { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 12px 0; }

/* the cream "paper" panel where Chinese text is shown */
.cn-paper { background: #f7f5ef; color: #1a1a1a; border-radius: 14px; padding: 20px 20px 22px; }
.cn-paper.dark { background: #0f1730; color: var(--ink); }

/* Reader: a run of tappable words, each with pinyin above (ruby) */
.cn-reader { line-height: 2.5; font-size: 26px; }
.cn-reader .ln { display: block; margin: 2px 0; }
.cn-word { display: inline-flex; flex-direction: column; align-items: center; vertical-align: bottom;
  cursor: pointer; border-radius: 7px; padding: 2px 3px 0; transition: background .12s; }
.cn-word:hover { background: #e8e2d0; }
.cn-word.on { background: #ffe08a; }
.cn-word.punct { cursor: default; }
.cn-word.punct:hover { background: transparent; }
.cn-word .py { font-size: 12px; line-height: 1.1; height: 14px; color: #8a7f66; font-family: -apple-system, sans-serif; }
.cn-reader.hidepy .cn-word .py { visibility: hidden; }
.cn-word .hz { font-size: 26px; }
/* tone-coloured pinyin option */
.cn-reader.tone .cn-word .py { color: inherit; }

/* word popup card (Reader) */
.cn-pop { border: 1px solid var(--border); background: var(--card); border-radius: 14px; padding: 14px 16px;
  margin: 14px 0; display: flex; align-items: center; gap: 16px; min-height: 64px; }
.cn-pop .big { font-size: 40px; line-height: 1; }
.cn-pop .meta { flex: 1; }
.cn-pop .meta .py { font-size: 18px; color: var(--accent); font-weight: 600; }
.cn-pop .meta .en { font-size: 15px; color: var(--ink); margin-top: 2px; }
.cn-pop .meta .hint { font-size: 12px; color: var(--muted); margin-top: 4px; }
.cn-pop .say { font-size: 22px; }

/* big character display (Cards / Write) */
.cn-char { font-size: 120px; line-height: 1; text-align: center; }
.cn-facecard { background: #f7f5ef; color: #1a1a1a; border-radius: 16px; padding: 26px; text-align: center;
  min-height: 260px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; }
.cn-facecard .py { font-size: 26px; color: #c2410c; font-weight: 600; min-height: 30px; }
.cn-facecard .en { font-size: 18px; color: #333; min-height: 24px; }
.cn-facecard .words { font-size: 15px; color: #555; margin-top: 6px; }
.cn-facecard .tap { font-size: 13px; color: #8a7f66; }

/* progress + meters */
.cn-meter { height: 8px; border-radius: 999px; background: var(--card); border: 1px solid var(--border); overflow: hidden; margin: 10px 0; }
.cn-meter > span { display: block; height: 100%; background: var(--accent); width: 0; transition: width .3s; }
.cn-stat { font-size: 13px; color: var(--muted); }
.cn-stat b { color: var(--ink); }

/* grading buttons */
.cn-grade { display: flex; gap: 10px; margin-top: 12px; }
.cn-grade .again { border-color: rgba(194,37,92,.5); }
.cn-grade .got { border-color: rgba(47,158,68,.5); }

/* Write: the田字-style box + Hanzi Writer target */
.cn-writegrid { display: flex; flex-wrap: wrap; gap: 18px; align-items: flex-start; }
.cn-tianzi { position: relative; width: 240px; height: 240px; background: #fff; border: 2px solid #d9534f;
  border-radius: 6px; }
.cn-tianzi::before, .cn-tianzi::after { content: ""; position: absolute; background: repeating-linear-gradient(
  to right, #f0a9a6 0 6px, transparent 6px 12px); }
.cn-tianzi::before { left: 0; right: 0; top: 50%; height: 1px; background-size: 12px 1px;
  background-image: repeating-linear-gradient(to right, #eeb 0 6px, transparent 6px 12px); }
.cn-tianzi .cross-h, .cn-tianzi .cross-v { position: absolute; background: #f0b8b6; }
.cn-tianzi .cross-h { left: 0; right: 0; top: 50%; height: 1px; }
.cn-tianzi .cross-v { top: 0; bottom: 0; left: 50%; width: 1px; }
.cn-writetarget { width: 240px; height: 240px; }
.cn-writegrid .side { flex: 1; min-width: 220px; }
.cn-writegrid .side .py { font-size: 24px; color: var(--accent); font-weight: 700; }
.cn-writegrid .side .en { font-size: 16px; color: var(--ink); margin: 2px 0 8px; }

/* character strip (pick a char) */
.cn-strip { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 6px; }
.cn-strip .c { width: 46px; height: 46px; border: 1px solid var(--border); background: var(--card);
  border-radius: 10px; font-size: 24px; display: flex; align-items: center; justify-content: center; cursor: pointer; }
.cn-strip .c:hover { border-color: rgba(91,134,236,.6); }
.cn-strip .c.on { background: var(--accent); border-color: var(--accent); color: #fff; }
.cn-strip .c.done { box-shadow: inset 0 -3px 0 #2f9e44; }

/* Tones: the four-tone buttons + contour glyphs */
.cn-tonebtns { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 14px 0; max-width: 520px; }
.cn-tonebtn { border: 1px solid var(--border); background: var(--card); border-radius: 12px; padding: 14px 8px;
  cursor: pointer; text-align: center; }
.cn-tonebtn:hover { border-color: rgba(91,134,236,.6); }
.cn-tonebtn.right { background: rgba(47,158,68,.18); border-color: #2f9e44; }
.cn-tonebtn.wrong { background: rgba(194,37,92,.18); border-color: #c2255c; }
.cn-tonebtn .num { font-size: 22px; font-weight: 800; }
.cn-tonebtn .nm { font-size: 12px; color: var(--muted); }
.cn-tonebtn .contour { font-size: 22px; }

/* Sentences: scrambled word tiles */
.cn-slot, .cn-bank { display: flex; flex-wrap: wrap; gap: 8px; min-height: 56px; padding: 10px;
  border: 1px dashed var(--border); border-radius: 12px; margin: 8px 0; align-content: flex-start; }
.cn-slot { background: rgba(59,111,224,.06); }
.cn-tile { font-size: 22px; padding: 6px 12px; background: #f7f5ef; color: #1a1a1a; border-radius: 10px;
  cursor: pointer; border: 1px solid #d9d2c0; user-select: none; }
.cn-tile:hover { background: #efe9d8; }
.cn-tile .tpy { display: block; font-size: 11px; color: #8a7f66; text-align: center; }
.cn-ok { color: #2f9e44; font-weight: 700; } .cn-no { color: #c2255c; font-weight: 700; }

.cn-note { font-size: 13px; color: var(--muted); margin-top: 14px; line-height: 1.5; }
.cn-note a { color: var(--accent); }
.cn-warn { font-size: 13px; color: #e8a13a; background: rgba(232,161,58,.1); border: 1px solid rgba(232,161,58,.3);
  border-radius: 10px; padding: 9px 13px; margin: 10px 0; }

/* hub cards reuse the site .card, but a compact tool grid too */
.cn-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; margin: 16px 0; }
.cn-grid .card { margin: 0; }
.cn-grid .card .ic { font-size: 26px; }

/* voice picker */
.cn-voicerow { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 8px 0; }
.cn-voicesel { font: inherit; font-size: 13px; color: var(--ink); background: var(--card);
  border: 1px solid var(--border); border-radius: 8px; padding: 6px 9px; max-width: 260px; }
.cn-voicesel option { color: #111; }

/* ---- v3 additions (packs rebuild) ---- */
.cn-btn.ghost { background: transparent; border: 1px dashed var(--border); color: var(--muted); }
.cn-btn.ghost:hover { border-color: var(--accent); color: var(--accent); }
.cn-famword { display: inline-flex; flex-direction: column; align-items: center; gap: 2px; padding: 8px 12px;
  border: 1px solid var(--border); border-radius: 12px; background: var(--card); cursor: pointer; }
.cn-famword:hover { border-color: var(--accent); }
.cn-famword .hz { font-size: 22px; }
.cn-famword .py { font-size: 12px; color: var(--muted); }
.cn-famword .en { font-size: 11px; color: var(--muted); max-width: 140px; text-align: center; }
.cn-charstrip { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0; }
.cn-charstrip button { font-size: 20px; min-width: 44px; padding: 8px 6px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--card); color: var(--ink); cursor: pointer; }
.cn-charstrip button.on { border-color: var(--accent); background: rgba(59,111,224,.12); }
.cn-charstrip button .b { display: block; font-size: 9px; color: var(--muted); }
.cn-pyinput { font: 20px/1.4 ui-monospace, monospace; width: min(280px, 70vw); padding: 10px 14px;
  border: 2px solid var(--border); border-radius: 12px; background: var(--card); color: var(--ink); text-align: center; }
.cn-pyinput.ok { border-color: #2c7a2c; } .cn-pyinput.bad { border-color: #b3261e; }
.cn-blank { display: inline-block; min-width: 1.4em; border-bottom: 2px solid var(--accent); cursor: pointer; color: transparent; }
.cn-blank.shown { color: inherit; border-bottom-color: transparent; }
.cn-progrow { display: flex; align-items: center; gap: 10px; margin: 6px 0; }
.cn-progrow .nm { width: 130px; font-size: 13px; color: var(--muted); }
.cn-progrow .bar { flex: 1; height: 10px; border-radius: 999px; background: var(--card); border: 1px solid var(--border); overflow: hidden; }
.cn-progrow .bar > span { display: block; height: 100%; background: var(--accent); }
.cn-progrow .n { font-size: 12px; color: var(--muted); min-width: 64px; text-align: right; }
/* buttons sitting INSIDE the light .cn-paper card need light-context colors
   (page vars are dark-theme; without this they render ghost-dark-on-light) */
.cn-paper .cn-btn { background: #fff; color: #123; border-color: #d9d2c0; }
.cn-paper .cn-btn:hover { background: #f2ecdb; }
.cn-paper .cn-btn.on, .cn-paper .cn-btn.play { color: #fff; }