/* V0.306 Morse Code — game-first training shell */
.mc306-page .mobile-dock{display:none!important}.mc306-core{margin:14px 0 18px}.mc306-hero{border:1px solid var(--line);border-radius:20px;background:var(--card);box-shadow:0 10px 28px rgba(20,27,45,.06);overflow:hidden}.mc306-toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding:12px 14px;border-bottom:1px solid var(--line)}.mc306-tabs{display:flex;gap:7px;flex-wrap:wrap;align-items:center}.mc306-tabs button,.mc306-chip{appearance:none;border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:999px;padding:9px 12px;font-weight:800;cursor:pointer;white-space:nowrap}.mc306-tabs button.active,.mc306-chip.active{background:#111827;color:white;border-color:#111827}.mc306-secondary{margin-left:auto;display:flex;gap:7px;flex-wrap:wrap}.mc306-secondary button{border-style:dashed}.mc306-setupbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding:10px 14px;background:var(--soft);border-bottom:1px solid var(--line)}.mc306-setupbar .mc306-levels{display:flex;gap:6px;flex-wrap:wrap}.mc306-setupbar button{border:1px solid var(--line);background:var(--card);border-radius:999px;padding:7px 10px;font-weight:750;cursor:pointer}.mc306-setupbar button.active{background:var(--ink);color:var(--card)}.mc306-setupbar .mc306-speednote{margin-left:auto;color:var(--muted);font-size:.88rem}.mc306-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;padding:12px 14px 0}.mc306-metric{border:1px solid var(--line);border-radius:13px;background:var(--soft);padding:9px 10px;min-width:0}.mc306-metric small{display:block;color:var(--muted);font-size:.72rem;text-transform:uppercase;letter-spacing:.04em}.mc306-metric strong{display:block;font-size:1.08rem;overflow:hidden;text-overflow:ellipsis}.mc306-player{padding:18px 14px 14px;text-align:center}.mc306-kicker{font-size:.76rem;text-transform:uppercase;letter-spacing:.08em;font-weight:850;color:var(--muted)}.mc306-prompt{font-size:clamp(2.4rem,11vw,5.4rem);font-weight:950;line-height:1.04;min-height:1.1em;margin:8px 0}.mc306-code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:clamp(1.45rem,6vw,2.9rem);letter-spacing:.16em;min-height:1.25em}.mc306-help{color:var(--muted);margin:8px auto 12px;max-width:640px;line-height:1.45}.mc306-playrow,.mc306-actions,.mc306-coach-actions{display:flex;gap:8px;justify-content:center;align-items:center;flex-wrap:wrap}.mc306-answer{display:flex;gap:8px;max-width:660px;margin:12px auto;align-items:stretch}.mc306-answer input{flex:1;min-width:0;padding:13px 14px;border:1px solid var(--line);border-radius:13px;font-size:1.1rem;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;text-align:center}.mc306-symbols{display:flex;justify-content:center;gap:8px;margin:8px auto}.mc306-symbols button{min-width:62px;font-size:1.35rem}.mc306-keywrap{max-width:560px;margin:12px auto}.mc306-key{width:min(100%,390px);min-height:92px;border:2px solid var(--line);border-radius:20px;background:var(--card);font-weight:900;font-size:1.05rem;touch-action:none;user-select:none}.mc306-key.pressed{transform:translateY(2px);box-shadow:inset 0 4px 10px rgba(0,0,0,.14)}.mc306-keycode{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:2rem;letter-spacing:.18em;min-height:2.4rem;margin:8px}.mc306-status{max-width:760px;margin:12px auto 0;text-align:left;border-radius:13px;background:var(--soft);padding:11px 13px;min-height:46px;line-height:1.45}.mc306-status.good{background:#ecfdf3}.mc306-status.bad{background:#fff3f2}.mc306-coach{max-width:760px;margin:10px auto 0;border:1px solid var(--line);border-radius:15px;padding:12px;background:var(--card);text-align:left}.mc306-coach strong{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.mc306-coach p{margin:0 0 9px}.mc306-bottom{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;padding:0 14px 14px}.mc306-weakstrip{padding:10px 14px;border-top:1px solid var(--line);background:var(--soft);font-size:.9rem;color:var(--muted)}.mc306-weakstrip strong{color:var(--ink)}.mc306-settings{margin:12px 0 0;border:1px solid var(--line);border-radius:16px;background:var(--card)}.mc306-settings>summary,.mc306-legacy>summary{cursor:pointer;font-weight:900;padding:13px 15px;list-style:none}.mc306-settings>summary::-webkit-details-marker,.mc306-legacy>summary::-webkit-details-marker{display:none}.mc306-settings-body{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;padding:0 14px 14px}.mc306-settings label{font-weight:750;font-size:.85rem}.mc306-settings select,.mc306-settings input{width:100%;margin-top:5px;padding:9px;border:1px solid var(--line);border-radius:10px;background:var(--card)}.mc306-overlay{position:fixed;inset:0;background:rgba(10,15,25,.55);display:grid;place-items:center;padding:18px;z-index:90}.mc306-overlay[hidden]{display:none}.mc306-result{width:min(620px,100%);background:var(--card);border-radius:20px;border:1px solid var(--line);padding:20px;box-shadow:0 25px 80px rgba(0,0,0,.24)}.mc306-result h2{margin:0 0 6px}.mc306-result-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:14px 0}.mc306-result-grid div{background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:9px}.mc306-result-grid small{display:block;color:var(--muted)}.mc306-legacy{border:1px solid var(--line);border-radius:18px;background:var(--card);margin:14px 0}.mc306-legacy .mc306-legacy-body{padding:0 14px 14px}.mc306-page .gameheader p{max-width:760px}.mc306-page .preview-note{font-size:.75rem}.mc306-page .mc306-legacy .m189-jump{position:static}.mc306-page .mc306-legacy .mc-guide{margin-bottom:12px}.mc306-page .mc306-legacy .mc-tabs{margin-top:12px}.mc306-page .mc306-legacy #m189Status{margin-bottom:0!important}
@media(max-width:720px){.mc306-page .gameheader{display:block;margin-bottom:8px}.mc306-page .gameheader .eyebrow{font-size:.68rem;padding:5px 8px}.mc306-page .gameheader h1{font-size:clamp(30px,10vw,38px);line-height:1.02;margin:8px 0 2px}.mc306-page .gameheader h1 small{display:none}.mc306-page .gameheader p,.mc306-page .gameheader .scorebox{display:none}.mc306-core{margin-top:6px}.mc306-page{padding-bottom:16px}.mc306-toolbar,.mc306-setupbar{padding:10px}.mc306-tabs,.mc306-secondary,.mc306-levels{overflow-x:auto;flex-wrap:nowrap;max-width:100%;padding-bottom:2px;scrollbar-width:none}.mc306-tabs::-webkit-scrollbar,.mc306-secondary::-webkit-scrollbar,.mc306-levels::-webkit-scrollbar{display:none}.mc306-secondary{margin-left:0;width:100%}.mc306-setupbar .mc306-speednote{width:100%;margin-left:0}.mc306-metrics{grid-template-columns:repeat(4,minmax(72px,1fr));overflow-x:auto;padding:10px 10px 0}.mc306-player{padding:14px 10px 10px}.mc306-answer{margin:10px 0}.mc306-answer input{font-size:1rem}.mc306-prompt{margin:4px 0}.mc306-help{margin:6px auto 9px}.mc306-bottom{padding:0 10px 10px}.mc306-settings-body{grid-template-columns:1fr 1fr}.mc306-result-grid{grid-template-columns:1fr 1fr}.mc306-page .topbar{position:static}.mc306-page .preview-note{display:none}}
@media(max-width:420px){.mc306-metrics{grid-template-columns:repeat(4,82px)}.mc306-toolbar{gap:6px}.mc306-tabs button,.mc306-chip{padding:8px 10px}.mc306-key{min-height:78px}.mc306-settings-body{grid-template-columns:1fr 1fr}.mc306-result{padding:16px}}