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var(--line-strong);min-height:60px;font-family:var(--font-display);box-shadow:0 4px 0 var(--line-strong);background:#fff;border-radius:16px;font-size:1.6rem;transition:transform 60ms}.numpad button:active{box-shadow:0 1px 0 var(--line-strong);transform:translateY(3px)}.numpad button.go{background:var(--leaf);border-color:var(--leaf-deep);box-shadow:0 4px 0 var(--leaf-deep);color:#fff;grid-row:span 2}.numpad button.del{background:var(--paper-2)}.numpad button:disabled{opacity:.35}.fb{border-radius:16px;align-items:center;gap:14px;padding:14px 18px;animation:.3s both rise;display:flex}.fb.ok{border:2px solid var(--leaf);background:#e8f7e4}.fb.ng{border:2px solid var(--coral);background:#fdeae7}.fb .big{font-family:var(--font-display);font-size:1.35rem}.fb .txt{color:var(--ink-soft);font-size:.98rem}.fb .xp{font-family:var(--font-display);color:var(--leaf-deep);white-space:nowrap;margin-left:auto}.fb 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.badges{flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:14px;display:flex}.result .badge{background:var(--paper-2);border:2px solid var(--sun);border-radius:999px;align-items:center;gap:6px;padding:6px 12px;font-weight:700;animation:.5s both pop;display:inline-flex}.result .acts{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.result .hint{color:var(--ink-faint);margin:12px 0 0;font-size:.9rem}.step-foot{margin-top:26px}.step-foot h3{color:var(--ink-soft);margin-bottom:10px;font-size:1.05rem}.mini-path{flex-wrap:wrap;gap:8px;display:flex}.mini-path a{width:42px;height:42px;font-family:var(--font-display);border:2px solid var(--line-strong);color:var(--ink-soft);background:#fff;border-radius:50%;place-items:center;display:grid}.mini-path a.done{background:var(--c);border-color:var(--c);color:#fff}.mini-path a.cur{background:var(--sun);border-color:var(--sun-deep);color:var(--ink);box-shadow:0 0 0 3px #fff, 0 0 0 5px 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var(--coral));border-radius:999px;height:100%;display:block}.stats{grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:10px;display:grid}.stat-tile{border:2px solid var(--line);text-align:center;background:#fff;border-radius:16px;padding:14px}.stat-tile b{font-family:var(--font-display);font-size:1.7rem;display:block}.stat-tile span{color:var(--ink-soft);font-size:.88rem}.days{align-items:flex-end;gap:4px;height:90px;padding-top:10px;display:flex}.days .d{flex-direction:column;flex:1;justify-content:flex-end;align-items:center;gap:4px;height:100%;display:flex}.days .d i{background:var(--leaf);border-radius:6px 6px 2px 2px;width:100%;max-width:26px;min-height:2px;display:block}.days .d i.zero{background:var(--paper-3)}.days .d small{color:var(--ink-faint);font-size:.65rem}.badge-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;display:grid}.badge-tile{border:2px solid var(--line);text-align:center;background:#fff;border-radius:16px;padding:12px}.badge-tile.on{border-color:var(--sun);background:#fff8dd}.badge-tile .ic{font-size:1.8rem}.badge-tile b{font-family:var(--font-display);font-weight:400;display:block}.badge-tile small{color:var(--ink-faint);font-size:.8rem}.badge-tile.off{opacity:.55;filter:grayscale()}.stage-rows{gap:10px;display:grid}.stage-row{border:2px solid var(--line);background:#fff;border-radius:14px;grid-template-columns:120px 1fr auto;align-items:center;gap:12px;padding:10px 14px;display:grid}.stage-row .bar{background:var(--paper-3);border-radius:999px;height:12px;overflow:hidden}.stage-row .bar i{background:var(--c);height:100%;display:block}.stage-row .n{color:var(--ink-soft);white-space:nowrap;font-size:.9rem}@media (max-width:520px){.stage-row{grid-template-columns:1fr}}.code-box{word-break:break-all;background:var(--paper-2);border:2px solid var(--line);border-radius:12px;max-height:110px;padding:10px;font-family:ui-monospace,monospace;font-size:.8rem;overflow:auto}textarea.code-in{border:2px solid var(--line-strong);width:100%;min-height:70px;font:inherit;border-radius:12px;padding:10px;font-size:.85rem}input.name-in{border:2px solid var(--line-strong);width:100%;font:inherit;border-radius:12px;padding:10px 12px}.msg{color:var(--leaf-deep);font-size:.9rem;font-weight:700}.msg.err{color:var(--coral-deep)}.empty{text-align:center;color:var(--ink-soft);padding:30px}.practice-tools{justify-content:flex-end;margin-bottom:4px;display:flex}.practice-tools.is-center{justify-content:center;margin:14px 0 0}.sound-toggle{color:#33594b;cursor:pointer;background:#fff;border:1px solid #d9e4dc;border-radius:12px;align-items:center;gap:6px;min-height:40px;padding:0 12px;font-size:.86rem;font-weight:700;display:inline-flex}.sound-toggle:hover{background:#f1f7f2}.sound-toggle[aria-pressed=false]{color:#6a716c;background:#f4f4f1}.sound-toggle.is-compact{border-radius:9px;min-height:32px;margin-left:6px;padding:0 8px;font-size:.7rem}.demo-toolbar>.sound-toggle span{white-space:nowrap}.experience-grid>*{min-width:0}@media (max-width:520px){.sound-toggle.is-compact{justify-content:center;width:32px;padding:0}.sound-toggle.is-compact span{clip:rect(0, 0, 0, 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}}