/* Tracing Town — shared stylesheet (original, MIT-style free for this site) */
:root{
  --paper:#FFFDF6;
  --bg:#F4EFE3;
  --card:#FFFFFF;
  --ink:#33302A;
  --muted:#6B6557;
  --teal:#2F7E6B;
  --teal-dark:#225F50;
  --teal-soft:#E4F0EB;
  --amber:#E8963C;
  --amber-soft:#FBEEDC;
  --line:#E2DAC6;
  --red:#C0392B;
  --radius:14px;
  --shadow:0 2px 10px rgba(60,50,20,.08);
  --font-body:'Trebuchet MS','Segoe UI',system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  --font-kid:'Comic Sans MS','Comic Sans','Segoe Print','Chalkboard SE','Marker Felt',cursive;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);line-height:1.65}
img,svg{max-width:100%}
a{color:var(--teal-dark)}
a:hover{color:var(--amber)}

/* ---------- header ---------- */
.site-header{background:linear-gradient(135deg,#2F7E6B 0%,#3E9A82 100%);color:#fff;box-shadow:var(--shadow)}
.header-inner{max-width:1100px;margin:0 auto;padding:10px 18px;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:9px;text-decoration:none;color:#fff;font-family:var(--font-kid);font-size:1.35rem;font-weight:700;letter-spacing:.3px}
.brand:hover{color:#fff}
.brand svg{width:34px;height:34px}
.nav-links{display:flex;flex-wrap:wrap;gap:2px;margin-left:auto}
.nav-links a{color:#EAF6F1;text-decoration:none;padding:6px 10px;border-radius:8px;font-size:.95rem;font-weight:600}
.nav-links a:hover{background:rgba(255,255,255,.15);color:#fff}
.nav-links a.active{background:#fff;color:var(--teal-dark)}

/* ---------- layout ---------- */
.container{max-width:1100px;margin:0 auto;padding:18px 18px 40px}
.page{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px 30px;margin-top:8px}
.crumbs{font-size:.85rem;margin:0 0 4px;color:var(--muted)}
.crumbs a{color:var(--teal-dark)}
.crumbs .sep{margin:0 5px;color:#B9AE93}
h1{font-family:var(--font-kid);color:var(--teal-dark);font-size:2rem;margin:.2em 0 .25em;line-height:1.2}
h2{font-family:var(--font-kid);color:var(--teal-dark);font-size:1.4rem;margin:1.4em 0 .4em}
h3{font-size:1.08rem;margin:1.1em 0 .3em;color:#453F33}
p{margin:.55em 0}
.sub{color:var(--muted);font-size:1.05rem;margin-top:-.2em}
ul,ol{padding-left:1.3em}
li{margin:.28em 0}
.lead{font-size:1.08rem}

/* ---------- buttons / toolbar ---------- */
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:14px 0 4px}
.btn{display:inline-flex;align-items:center;gap:7px;border:none;cursor:pointer;border-radius:10px;padding:10px 18px;font-size:1rem;font-weight:700;text-decoration:none;font-family:var(--font-body);line-height:1.2}
.btn-primary{background:var(--teal);color:#fff}
.btn-primary:hover{background:var(--teal-dark);color:#fff}
.btn-amber{background:var(--amber);color:#fff}
.btn-amber:hover{background:#cf7f28;color:#fff}
.btn-ghost{background:#fff;color:var(--teal-dark);border:2px solid var(--teal)}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber)}
.btn[disabled],.btn.coming-soon{background:#DCD6C6;color:#8B8572;cursor:not-allowed}
.toolbar .hint{font-size:.85rem;color:var(--muted)}

/* ---------- worksheet sheet ---------- */
.worksheet{background:#fff;border:2px dashed var(--line);border-radius:12px;padding:10px;margin:12px 0 6px;overflow-x:auto}
.worksheet svg{display:block;margin:0 auto;width:100%;height:auto}
.worksheet-title{font-family:var(--font-kid);color:var(--teal-dark);text-align:center;margin:6px 0 0;font-size:1.1rem}
.sheet-caption{font-size:.85rem;color:var(--muted);text-align:center;margin:4px 0 0}

/* ---------- cards / grids ---------- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;margin:14px 0}
.card{display:block;background:var(--paper);border:2px solid var(--line);border-radius:12px;padding:12px;text-align:center;text-decoration:none;color:var(--ink);transition:transform .12s,border-color .12s}
.card:hover{transform:translateY(-2px);border-color:var(--amber);color:var(--ink)}
.card .big{font-family:var(--font-kid);font-size:2rem;color:var(--teal);line-height:1.2}
.card .lbl{font-weight:600;font-size:.9rem;margin-top:2px}
.card .tag{display:inline-block;font-size:.72rem;background:var(--amber-soft);color:#8a5412;border-radius:20px;padding:1px 9px;margin-top:4px}
.card-wide{grid-column:1/-1;text-align:left;display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.card-wide .big{font-size:1.7rem}
.card-wide .lbl{font-size:1.05rem}
.card-wide p{margin:.15em 0 0;font-size:.9rem;color:var(--muted)}
.hero-grid{grid-template-columns:repeat(auto-fill,minmax(230px,1fr))}
.card .icon{font-size:2.2rem;line-height:1.2}
.chip{display:inline-block;background:var(--teal-soft);color:var(--teal-dark);border-radius:20px;padding:2px 12px;font-size:.82rem;font-weight:700;margin:2px 3px 2px 0}

/* ---------- related ---------- */
.related{margin-top:26px;padding-top:14px;border-top:2px dotted var(--line)}
.related .grid{grid-template-columns:repeat(auto-fill,minmax(130px,1fr))}
.related a.card .big{font-size:1.6rem}

/* ---------- FAQ ---------- */
.faq{margin-top:26px}
.faq details{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:8px 14px;margin:8px 0}
.faq summary{cursor:pointer;font-weight:700;color:var(--teal-dark)}
.faq details p{margin:.4em 0 .2em}

/* ---------- generator ---------- */
.gen-layout{display:grid;grid-template-columns:340px 1fr;gap:20px;align-items:start}
@media(max-width:900px){.gen-layout{grid-template-columns:1fr}}
.control-panel{background:var(--paper);border:2px solid var(--line);border-radius:12px;padding:16px}
.control-panel label{display:block;font-weight:700;font-size:.9rem;margin:12px 0 3px;color:#453F33}
.control-panel input[type=text],.control-panel select{border:2px solid var(--line);border-radius:8px;padding:8px 10px;font-size:1.02rem;width:100%;background:#fff;color:var(--ink)}
.control-panel input:focus,.control-panel select:focus{outline:none;border-color:var(--teal)}
.control-panel .row-inline{display:flex;gap:12px;align-items:center}
.control-panel input[type=checkbox]{width:18px;height:18px;accent-color:var(--teal)}
.check-line{display:flex;gap:8px;align-items:center;font-weight:600;margin-top:10px}
.error{display:none;color:var(--red);background:#FBE9E7;border-radius:8px;padding:8px 10px;font-size:.9rem;margin-top:10px}
.error.show{display:block}
.preview-wrap{background:#fff;border:2px dashed var(--line);border-radius:12px;padding:12px;overflow:auto}
.preview-wrap svg{width:100%;height:auto;display:block}
.meta-note{font-size:.8rem;color:var(--muted);margin-top:6px;text-align:center}

/* ---------- play ---------- */
.play-stage{background:var(--paper);border:2px solid var(--line);border-radius:14px;padding:14px;text-align:center}
.play-stage canvas{background:#fff;border-radius:10px;max-width:100%;touch-action:none;cursor:crosshair;box-shadow:inset 0 0 0 2px var(--line)}
.play-msg{font-family:var(--font-kid);font-size:1.4rem;color:var(--teal-dark);min-height:2em;margin:.4em 0}
.progress-track{height:12px;background:#EDE6D2;border-radius:20px;max-width:420px;margin:8px auto;overflow:hidden}
.progress-fill{height:100%;width:0%;background:linear-gradient(90deg,#2F7E6B,#E8963C);border-radius:20px;transition:width .3s}
.play-picker{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:12px}
.play-picker .btn{font-family:var(--font-kid);font-size:1.05rem}
.kid-note{background:var(--amber-soft);border-radius:12px;padding:12px 16px;margin:18px 0 0;font-size:.95rem}

/* ---------- ad placeholder / coming soon ---------- */
.ad-slot{border:2px dashed #D8CCB0;background:repeating-linear-gradient(45deg,#FBF7EC,#FBF7EC 12px,#F6EFDC 12px,#F6EFDC 24px);border-radius:10px;color:#A29474;text-align:center;padding:12px;margin:18px 0;font-size:.82rem}
.ad-slot.leaderboard{min-height:60px;display:flex;align-items:center;justify-content:center}
.coming-soon-note{color:var(--muted);font-size:.9rem}

/* ---------- footer ---------- */
.site-footer{background:#2B2923;color:#CFC9B8;margin-top:30px}
.footer-inner{max-width:1100px;margin:0 auto;padding:26px 18px;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px}
.site-footer h4{color:#fff;font-family:var(--font-kid);margin:.2em 0 .5em;font-size:1.05rem}
.site-footer a{color:#CFC9B8;display:block;padding:2px 0;text-decoration:none;font-size:.92rem}
.site-footer a:hover{color:#fff;text-decoration:underline}
.footer-base{max-width:1100px;margin:0 auto;padding:0 18px 20px;font-size:.8rem;color:#9C9583}
.footer-base a{display:inline;padding:0;color:#B8B09B}
.footer-base a:hover{color:#fff}
.divider{margin:0 6px}

/* ---------- info / contact ---------- */
.contact-methods a{font-weight:700}
.form-note{background:var(--amber-soft);border-radius:10px;padding:10px 14px;font-size:.9rem}
.note-box{background:var(--teal-soft);border-left:4px solid var(--teal);border-radius:8px;padding:10px 14px;margin:12px 0;font-size:.95rem}
kbd{background:#eee;border-radius:5px;padding:0 6px;border:1px solid #ccc;font-size:.85em}

/* ---------- print ---------- */
@page{size:A4 portrait;margin:11mm 10mm}
@media print{
  body{background:#fff;color:#000}
  .site-header,.site-footer,.crumbs,.toolbar,.related,.faq,.ad-slot,.no-print,.kid-note{display:none!important}
  .container{max-width:none;padding:0}
  .page{box-shadow:none;border:none;padding:0;margin:0;border-radius:0}
  .worksheet{border:none;padding:0;border-radius:0;margin:0}
  h1{font-size:1.5rem;margin-top:0}
  .sub{color:#444}
  a{color:#000;text-decoration:none}
  .print-break-avoid{break-inside:avoid}
}