/* Times Tables with Fuzz & Cola — My Mini Cat (kid-friendly, mobile-first) */
@font-face{font-family:Fredoka;src:url(/assets/fonts/fredoka.woff2) format("woff2");font-weight:300 700;font-display:swap}
:root{
  --ink:#4A2E3E;--soft:#7A5A6C;--pink:#FF9EC4;--coral:#FF7A8A;--lilac:#AE8CFF;
  --mint:#5FD8A9;--sky:#5CC0F5;--sun:#FFE27A;--card:#fff;--line:rgba(170,100,160,.18);
  --ok:#3FB98A;--try:#FFA552;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;min-height:100dvh;color:var(--ink);
  font:18px/1.5 Fredoka,ui-rounded,"SF Pro Rounded","Nunito","Segoe UI",system-ui,sans-serif;
  background:linear-gradient(180deg,#FFF0F6,#F3EAFF 55%,#EAF6FF) fixed;
}
.skip{position:absolute;inset-inline-start:-999px;top:0}.skip:focus{inset-inline-start:8px;top:8px;background:#fff;padding:8px;z-index:9;border-radius:8px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
[hidden]{display:none!important}
button,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
a{color:#C2477F}

.tt-top{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;max-width:720px;margin:0 auto;padding:10px 14px}
.tt-home{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:999px;background:#fff;text-decoration:none;color:var(--ink);font-weight:700;box-shadow:0 2px 8px var(--line)}
.tt-badge{margin-inline-start:auto;font-weight:800;color:var(--coral);background:#fff;padding:6px 12px;border-radius:999px;box-shadow:0 2px 8px var(--line)}
.tt-lang select{border:2px solid #FFC2D8;border-radius:999px;padding:6px 10px;background:#fff;font-weight:600}

.tt-app{max-width:720px;margin:0 auto;padding:4px 14px 28px}
.tt-card{background:var(--card);border-radius:24px;padding:18px 18px 20px;margin:12px 0;box-shadow:0 6px 24px rgba(170,100,160,.12)}
.tt-title{font-size:clamp(26px,6vw,36px);line-height:1.15;margin:.1em 0 .35em;text-align:center}
.tt-lead{text-align:center;color:var(--soft);margin:0 0 14px;font-size:17px}
.tt-guides{display:flex;justify-content:center;align-items:flex-end;gap:10px;margin:4px 0 14px}
.tt-guides img{width:88px;height:auto;filter:drop-shadow(0 6px 10px rgba(74,46,62,.18));animation:bob 2.8s ease-in-out infinite}
.tt-guides img.cola{width:78px;animation-delay:.4s}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
@media(prefers-reduced-motion:reduce){.tt-guides img{animation:none}}

.tt-bubble{background:#FFF7FB;border:2px solid #FFC2D8;border-radius:18px;padding:12px 14px;margin:0 0 14px;position:relative;text-align:center;font-weight:600}
.tt-bubble::after{content:"";position:absolute;left:50%;bottom:-8px;width:14px;height:14px;background:#FFF7FB;border-right:2px solid #FFC2D8;border-bottom:2px solid #FFC2D8;transform:translateX(-50%) rotate(45deg)}

.tt-row{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;align-items:center;margin:10px 0}
.tt-toggle{display:inline-flex;background:#FFF0F6;border-radius:999px;padding:4px;gap:2px}
.tt-toggle button{padding:8px 14px;border-radius:999px;font-weight:700;color:var(--soft)}
.tt-toggle button.on{background:linear-gradient(135deg,var(--pink),var(--lilac));color:#fff;box-shadow:0 3px 0 rgba(0,0,0,.06)}

.tt-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:12px 0}
@media(max-width:420px){.tt-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.tt-tile{
  aspect-ratio:1;border-radius:20px;border:3px solid #FFC2D8;background:#FFF7FB;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-weight:800;font-size:22px;color:var(--ink);box-shadow:0 3px 0 rgba(170,100,160,.12);
  transition:transform .12s ease;
}
.tt-tile:hover,.tt-tile:focus-visible{transform:translateY(-2px);outline:3px solid var(--lilac);outline-offset:2px}
.tt-tile small{font-size:12px;font-weight:600;color:var(--soft)}
.tt-tile.done{border-color:var(--mint);background:#E8FFF5}
.tt-tile.done::after{content:"⭐";font-size:14px}
.tt-tile:nth-child(6n+2){border-color:#FFCF9F;background:#FFF4E8}
.tt-tile:nth-child(6n+3){border-color:#A9E8CB;background:#E8FFF5}
.tt-tile:nth-child(6n+4){border-color:#A9D5FA;background:#EAF6FF}
.tt-tile:nth-child(6n+5){border-color:#CDBBFF;background:#F3EAFF}
.tt-tile:nth-child(6n+6){border-color:#F5DD7A;background:#FFF8D6}

.tt-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:12px 22px;border-radius:999px;font-weight:800;text-decoration:none;
  color:#fff;background:linear-gradient(135deg,var(--coral),#FFA552);box-shadow:0 4px 0 rgba(0,0,0,.08);
}
.tt-btn.mint{background:linear-gradient(135deg,var(--mint),#3FB98A)}
.tt-btn.lilac{background:linear-gradient(135deg,var(--lilac),#7B6CFF)}
.tt-btn.sky{background:linear-gradient(135deg,var(--sky),#3AA8E8)}
.tt-btn.ghost{background:#fff;color:var(--ink);border:2px solid #FFC2D8;box-shadow:none}
.tt-btn:disabled{opacity:.45;cursor:not-allowed}
.tt-btn:focus-visible{outline:3px solid var(--lilac);outline-offset:2px}
.tt-actions{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:14px}

.tt-progress{display:flex;align-items:center;gap:10px;margin:8px 0 14px}
.tt-bar{flex:1;height:12px;border-radius:999px;background:#FFE1EC;overflow:hidden}
.tt-bar>i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--pink),var(--lilac));border-radius:999px;transition:width .25s ease}
.tt-step{font-weight:700;font-size:14px;color:var(--soft);white-space:nowrap}

.tt-fact{text-align:center}
.tt-eq{font-size:clamp(28px,8vw,42px);font-weight:800;margin:6px 0 12px;letter-spacing:.02em}
.tt-eq .op{color:var(--coral);margin:0 .15em}
.tt-eq .ans{color:#3FB98A}
.tt-groups{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin:10px 0 6px}
.tt-group{
  display:flex;flex-wrap:wrap;gap:3px;justify-content:center;align-content:center;
  min-width:56px;max-width:120px;padding:8px;border-radius:16px;background:#FFF7FB;border:2px dashed #FFC2D8;
}
.tt-group span{font-size:clamp(16px,4.5vw,22px);line-height:1}
.tt-count{text-align:center;font-weight:700;color:var(--soft);margin:4px 0 0}

.tt-check{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center;margin-top:12px}
.tt-check input{
  width:100%;min-height:52px;border:3px solid #FFC2D8;border-radius:16px;padding:10px 14px;
  font-size:24px;font-weight:800;text-align:center;background:#fff;
}
.tt-check input:focus{outline:3px solid var(--lilac);border-color:var(--lilac)}

.tt-fb{min-height:28px;text-align:center;font-weight:700;margin:10px 0 0}
.tt-fb.ok{color:var(--ok)}.tt-fb.try{color:var(--try)}

.tt-choices{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}
.tt-choice{
  min-height:56px;border-radius:18px;border:3px solid #FFC2D8;background:#FFF7FB;
  font-size:24px;font-weight:800;box-shadow:0 3px 0 rgba(170,100,160,.1);
}
.tt-choice.right{border-color:var(--ok);background:#E8FFF5;color:var(--ok)}
.tt-choice.wrong{border-color:var(--coral);background:#FFE8EC;opacity:.7}
.tt-choice:disabled{cursor:default}

.tt-stars{text-align:center;font-size:32px;letter-spacing:4px;margin:8px 0}
.tt-stars .off{opacity:.25;filter:grayscale(1)}
.tt-timer{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;background:#FFF4E8;font-weight:700;font-size:15px;color:var(--soft)}
.tt-timer.warn{background:#FFE8EC;color:var(--coral)}

.tt-mode{display:grid;grid-template-columns:1fr;gap:10px;margin-top:8px}
@media(min-width:520px){.tt-mode{grid-template-columns:1fr 1fr}}
.tt-mode a,.tt-mode button{
  display:flex;flex-direction:column;align-items:flex-start;gap:4px;text-align:start;
  padding:14px 16px;border-radius:20px;border:3px solid #FFC2D8;background:#FFF7FB;
  text-decoration:none;color:var(--ink);font-weight:700;box-shadow:0 3px 0 rgba(170,100,160,.1);
}
.tt-mode .mi{font-size:28px}.tt-mode small{font-weight:600;color:var(--soft)}

.tt-opts{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;align-items:center;margin:10px 0}
.tt-opts label{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#FFF0F6;font-weight:700;font-size:15px;cursor:pointer}
.tt-opts input{width:18px;height:18px;accent-color:var(--coral)}

.tt-foot{max-width:720px;margin:0 auto;padding:8px 16px 28px;text-align:center;color:var(--soft);font-size:15px}
.tt-links{display:flex;flex-wrap:wrap;gap:6px 10px;justify-content:center}
.tt-links a{text-decoration:none;font-weight:700;color:var(--ink)}
.tt-small{font-size:13px;opacity:.85}

.tt-list{list-style:none;padding:0;margin:10px 0;display:grid;gap:8px}
.tt-list li{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 14px;border-radius:16px;background:#FFF7FB;border:2px solid #FFE1EC;font-weight:700}
.tt-list .ok{color:var(--ok)}

.tt-confetti{position:fixed;inset:0;pointer-events:none;overflow:hidden;z-index:20}
.tt-confetti i{position:absolute;top:-10px;font-size:18px;animation:fall 1.4s ease-in forwards}
@keyframes fall{to{transform:translateY(110vh) rotate(360deg);opacity:0}}
@media(prefers-reduced-motion:reduce){.tt-confetti{display:none}}

/* --- Method path, meaning lesson, story, diploma (fun & warm) --- */
.tt-research{
  text-align:center;font-size:14px;font-weight:700;color:#C2477F;
  background:#FFF0F6;border-radius:14px;padding:8px 12px;margin:0 0 8px;
}
.tt-grownups{
  text-align:center;font-size:12px;color:var(--soft);margin:0 0 12px;line-height:1.4;
}
.tt-gu-label{font-weight:800;color:var(--ink)}
.tt-suggest{
  text-align:center;font-weight:800;color:#C2477F;margin:8px 0 0;
  background:#FFF7FB;border:2px dashed #FFC2D8;border-radius:14px;padding:8px 12px;
}
.tt-tile.rec{outline:3px solid var(--coral);outline-offset:2px;transform:translateY(-2px)}
.tt-tile.locked{opacity:.45;cursor:not-allowed;filter:grayscale(.35)}
.tt-tile.locked:hover,.tt-tile.locked:focus-visible{transform:none;outline:none}

.tt-array{
  display:inline-flex;flex-direction:column;gap:4px;margin:8px auto;padding:10px 12px;
  border-radius:16px;background:#F3EAFF;border:2px solid #CDBBFF;
}
.tt-array-row{display:flex;gap:4px;justify-content:center}
.tt-array-row span{font-size:clamp(14px,3.8vw,20px);line-height:1}
.tt-same{
  font-weight:700;color:#7B6CFF;background:#F3EAFF;border-radius:12px;
  padding:8px 12px;margin:8px auto;max-width:28em;font-size:15px;
}
.tt-skiprow{
  display:flex;flex-wrap:wrap;gap:4px 2px;justify-content:center;align-items:center;
  margin:8px 0 4px;font-weight:800;
}
.tt-skip{
  display:inline-flex;min-width:36px;height:36px;align-items:center;justify-content:center;
  border-radius:12px;background:#EAF6FF;border:2px solid #A9D5FA;font-size:15px;padding:0 6px;
}
.tt-skip.on{background:linear-gradient(135deg,var(--pink),var(--lilac));color:#fff;border-color:transparent}
.tt-skipdot{color:var(--soft);font-weight:700;padding:0 2px}
.tt-groups.compact .tt-group{min-width:40px;padding:4px;max-width:90px}
.tt-groups.compact .tt-group span{font-size:14px}

.tt-phase{
  text-align:center;font-size:13px;font-weight:700;color:var(--soft);margin:0 0 4px;
}
.tt-tip{
  margin:8px auto 0;max-width:28em;padding:8px 12px;border-radius:12px;
  background:#FFF8D6;border:2px solid #F5DD7A;font-weight:700;font-size:14px;color:var(--ink);
}
.tt-hintbtn{
  display:inline-block;margin:8px auto 0;padding:6px 14px;border-radius:999px;
  background:#FFF4E8;border:2px solid #FFCF9F;font-weight:700;font-size:14px;color:var(--soft);
}

.tt-storycard{
  background:linear-gradient(135deg,#FFF7FB,#EAF6FF);border:3px solid #FFC2D8;
  border-radius:20px;padding:16px;margin:8px 0 12px;text-align:center;font-weight:700;
}
.tt-storyemoji{font-size:40px;display:block;margin-bottom:6px}

.tt-diploma-wrap{text-align:center}
.tt-diploma{
  position:relative;margin:10px auto;padding:22px 18px 18px;max-width:420px;
  background:
    radial-gradient(circle at 12% 18%,rgba(255,158,196,.25),transparent 40%),
    radial-gradient(circle at 88% 12%,rgba(174,140,255,.22),transparent 40%),
    linear-gradient(180deg,#FFFCF8,#FFF0F6 60%,#F3EAFF);
  border:4px solid #FF9EC4;border-radius:24px;
  box-shadow:0 0 0 6px #fff,0 0 0 10px #AE8CFF,0 10px 28px rgba(170,100,160,.18);
}
.tt-dip-seal{font-size:42px;margin-bottom:4px}
.tt-dip-from{font-weight:800;color:#C2477F;margin:0;letter-spacing:.04em;text-transform:uppercase;font-size:13px}
.tt-dip-title{font-size:clamp(22px,5.5vw,30px);margin:6px 0 10px;color:var(--ink)}
.tt-dip-cats{display:flex;justify-content:center;align-items:flex-end;gap:8px;margin:4px 0 10px}
.tt-dip-cats img{width:72px;height:auto;filter:drop-shadow(0 4px 8px rgba(74,46,62,.15))}
.tt-dip-cats img.cola{width:64px}
.tt-dip-congrats{font-weight:700;margin:0 0 10px;color:var(--soft)}
.tt-dip-name{display:block;margin:0 auto 10px;max-width:260px}
.tt-dip-name input{
  width:100%;min-height:48px;border:3px dashed #FFC2D8;border-radius:14px;
  text-align:center;font-weight:800;font-size:20px;background:#fff;padding:8px;
}
.tt-dip-name input:focus{outline:3px solid var(--lilac);border-style:solid}
.tt-dip-line{font-weight:800;font-size:17px;margin:8px 0;color:var(--ink)}
.tt-dip-stars{font-size:28px;letter-spacing:4px;margin:6px 0}
.tt-dip-date{font-weight:700;color:var(--soft);font-size:14px;margin:4px 0}
.tt-dip-sign{font-weight:800;color:#C2477F;margin:8px 0 4px}
.tt-dip-research{font-size:12px;color:var(--soft);margin:8px 0 0;font-weight:600}

@media print{
  body{background:#fff!important}
  .tt-top,.tt-foot,.tt-actions,.tt-row,.skip,.tt-lang{display:none!important}
  .tt-app{max-width:none;padding:0}
  .tt-card{box-shadow:none;margin:0;border-radius:0}
  .tt-diploma{box-shadow:none;break-inside:avoid}
}
/* link card to the next lesson (Add & Subtract) */
.tt-next-lesson{display:flex;align-items:center;gap:12px;margin:14px auto 2px;max-width:420px;padding:12px 16px;border-radius:20px;background:linear-gradient(135deg,#e0f4ff,#fff0f6);border:2px dashed #8fd3ff;color:#4a2b3b;text-decoration:none;font-size:16px;line-height:1.3;text-align:start}
.tt-next-lesson>span:first-child{font-size:26px;white-space:nowrap}
.tt-next-lesson small{font-size:13px;opacity:.8}
.tt-next-lesson:hover,.tt-next-lesson:focus-visible{border-style:solid;transform:translateY(-1px)}