:root{--bg: #f4f8ff;--card: #ffffff;--ink: #22314e;--brand: #4f7cff;--brand-dark: #3a5fd0;--good: #2fbf71;--bad: #ff6b6b;--shadow: 0 6px 18px rgba(40, 70, 140, .12);--radius: 18px}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:Comic Sans MS,Trebuchet MS,Segoe UI,system-ui,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);min-height:100vh}.nav-btn,.btn,.tile,.link-btn{-webkit-tap-highlight-color:transparent;-webkit-user-select:none;user-select:none;touch-action:manipulation}#app{max-width:960px;margin:0 auto;padding:16px}@media (min-width: 700px){#app{max-width:1100px;padding:24px}}.app-header{text-align:center;margin-bottom:12px}.app-title{font-size:clamp(1.8rem,5vw,2.6rem);margin:8px 0}.badges-row{display:flex;justify-content:center;gap:10px;margin-bottom:12px}.stars-badge,.streak-badge{display:inline-block;font-weight:700;font-size:1.1rem;padding:6px 16px;border-radius:999px;box-shadow:var(--shadow)}.stars-badge{background:#fff8e1;color:#b8860b}.streak-badge{background:#ffe9e1;color:#c0472b}.app-nav{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}.nav-btn{border:none;background:var(--card);color:var(--ink);font:inherit;font-size:1rem;padding:12px 18px;border-radius:999px;cursor:pointer;box-shadow:var(--shadow);min-height:48px}.nav-btn.active{background:var(--brand);color:#fff}.app-view{margin-top:20px}.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;text-align:center}.big-symbol{font-size:clamp(3rem,12vw,6rem);font-weight:700;line-height:1.1}.btn{border:none;background:var(--brand);color:#fff;font:inherit;font-size:1.1rem;padding:14px 22px;border-radius:14px;cursor:pointer;min-height:52px;min-width:52px;box-shadow:var(--shadow)}.btn:hover{background:var(--brand-dark)}.btn:disabled{opacity:.5;cursor:not-allowed}.play-btn{margin-top:14px;font-size:1rem;padding:10px 16px;min-height:44px}.tile-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(84px,1fr));gap:12px;margin-top:20px}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:16px;margin-top:20px}.tile{background:var(--card);border:3px solid transparent;border-radius:14px;padding:16px 8px;font-size:1.8rem;cursor:pointer;box-shadow:var(--shadow);min-height:64px}.tile.correct{border-color:var(--good);background:#eafff2}.tile.wrong{border-color:var(--bad);background:#fff0f0}.tile.slot{border:3px dashed #c9d4ea;background:transparent;cursor:default;color:var(--ink)}.tile.slot.filled{border-style:solid;border-color:var(--brand);background:#eaf0ff}.activity-controls{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:16px}.feedback{font-size:1.4rem;margin-top:16px;min-height:1.6em}.feedback.good{color:var(--good)}.feedback.bad{color:var(--bad)}.notice{color:var(--bad);font-size:.95rem;margin-top:8px}.dashboard-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:14px;margin:20px 0}.stat-tile{background:#f5f7ff;border-radius:14px;padding:16px 8px}.stat-value{font-size:1.8rem;font-weight:700}.stat-label{font-size:.95rem;color:var(--ink);opacity:.75;margin-top:4px}.nav-badge{display:inline-block;min-width:1.4em;padding:0 6px;margin-left:4px;border-radius:999px;background:var(--bad);color:#fff;font-size:.85rem;font-weight:700;line-height:1.4em;text-align:center}.nav-btn.active .nav-badge{background:#fff;color:var(--brand)}.link-btn{display:inline-block;margin-top:12px;padding:12px 20px;border-radius:14px;background:var(--brand);color:#fff;font-weight:700;text-decoration:none;min-height:48px}.link-btn:hover{background:var(--brand-dark)}.practice-count{font-weight:700;font-size:1.1rem;margin:8px 0}@media (min-width: 700px){.big-symbol{font-size:clamp(4rem,9vw,7rem)}.card{padding:32px}.tile-grid{grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:18px}.tile{font-size:2.2rem;padding:22px 10px;min-height:84px}.card-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px}.nav-btn{font-size:1.05rem;padding:14px 22px}.btn{font-size:1.15rem}}@media (min-width: 1000px) and (orientation: landscape){.card-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}}