:root{font-family:Space Grotesk,Segoe UI,sans-serif;color:#f7f1e8;background:radial-gradient(circle at top left,rgba(255,193,120,.28),transparent 28%),radial-gradient(circle at right,rgba(133,178,255,.24),transparent 26%),linear-gradient(145deg,#111017,#191423 55%,#241b19);line-height:1.4;font-weight:400}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}button,select{font:inherit}button{transition:transform .14s ease,background .14s ease,border-color .14s ease,box-shadow .14s ease}button:hover{transform:translateY(-1px)}.app-shell{max-width:1280px;margin:0 auto;padding:40px 24px 56px}.hero{margin-bottom:24px}.eyebrow{margin:0 0 12px;text-transform:uppercase;letter-spacing:.24em;color:#ffbf72}.hero h1{margin:0;font-size:clamp(2.4rem,6vw,4.8rem);line-height:.98}.lede{max-width:760px;color:#f7f1e8c7;font-size:1.05rem}.panel{-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#121420b3;border:1px solid rgba(255,255,255,.08);border-radius:24px;box-shadow:0 16px 40px #00000038}.control-panel{display:flex;gap:16px;align-items:end;padding:18px;margin-bottom:24px;flex-wrap:wrap}.field{display:flex;flex-direction:column;gap:8px;min-width:160px}.field label{font-size:.85rem;color:#f7f1e8b8}.field select,.primary,.secondary,.choice{border:1px solid transparent;border-radius:16px;padding:12px 16px}.field select{background:#ffffff14;color:inherit}.primary{background:linear-gradient(135deg,#ffbf72,#f58b54);color:#1f160f;font-weight:700}.secondary,.choice{background:#ffffff14;color:inherit}.dashboard{display:grid;gap:24px;grid-template-columns:minmax(0,2fr) minmax(300px,1fr)}.exercise-panel,.stats-panel{padding:24px}.panel-header{display:flex;justify-content:space-between;color:#f7f1e8ad;text-transform:uppercase;letter-spacing:.16em;font-size:.75rem}.exercise-panel h2,.stats-panel h3{margin-top:0}.message{min-height:24px;color:#ffd5a7}.message.correct{color:#8ff7bc}.message.wrong{color:#ff9696}.result-zone{display:flex;align-items:center;gap:18px;margin:20px 0 10px}.result-badge{display:grid;place-items:center;width:56px;height:56px;border-radius:50%;font-size:1.8rem;font-weight:700}.result-badge.correct{background:#5df2a32e;color:#5df2a3;box-shadow:0 0 0 8px #5df2a314}.result-badge.wrong{background:#ff6b6b2e;color:#ff7d7d;box-shadow:0 0 0 8px #ff6b6b14}.countdown-ring{display:grid;place-items:center;width:114px;height:114px;border-radius:50%;padding:8px}.countdown-center{display:grid;place-items:center;width:100%;height:100%;border-radius:50%;background:#10121cf2;text-align:center}.countdown-center strong{font-size:2rem;line-height:1}.countdown-center span{width:72px;font-size:.72rem;color:#f7f1e8b8}.choice-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin:20px 0}.choice.correct{background:#5df2a338;border-color:#5df2a380;color:#dbffeb}.choice.wrong{background:#ff6b6b33;border-color:#ff6b6b73;color:#ffe2e2}.choice.expected{background:#5df2a329;border-color:#5df2a359;box-shadow:0 0 0 2px #5df2a324 inset}.keyboard{display:grid;grid-template-columns:repeat(12,minmax(48px,1fr));gap:10px;margin-top:20px}.key{display:flex;flex-direction:column;justify-content:space-between;min-height:120px;padding:14px 10px;border-radius:18px}.key.white{background:linear-gradient(180deg,#fff7e8,#f0dbb8);color:#251c13}.key.black{background:linear-gradient(180deg,#394157,#151923)}.key span{font-weight:700}.key small{opacity:.8}.key.active{box-shadow:0 0 0 2px #ffbf728c}.key.correct{background:linear-gradient(180deg,#98ffcd,#3ac584);color:#0c2618;box-shadow:0 10px 24px #5df2a347}.key.wrong{background:linear-gradient(180deg,#ffb0b0,#ff6767);color:#381111;box-shadow:0 10px 24px #ff6b6b47}.key.expected{box-shadow:0 0 0 3px #5df2a399,0 10px 24px #5df2a329}.key.free-playing{background:linear-gradient(180deg,#ffda8e,#f59c3d);color:#2d1c08;box-shadow:0 10px 24px #ffbf7252}.melody-status{display:flex;justify-content:space-between;align-items:center;margin:20px 0;padding:14px 16px;border-radius:18px;background:#ffffff0f}.free-play-status{display:flex;justify-content:space-between;align-items:center;margin:20px 0;padding:16px 18px;border-radius:18px;background:linear-gradient(135deg,#ffbf7229,#ffffff0d)}.free-play-status strong{font-size:1.4rem;color:#ffcf92}.stats-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.stats-grid div{padding:14px;border-radius:18px;background:#ffffff0f}.stats-grid dt{color:#f7f1e8a3;font-size:.85rem}.stats-grid dd{margin:8px 0 0;font-size:1.5rem;font-weight:700}.history{display:grid;gap:10px}.history-item{display:flex;flex-direction:column;gap:6px;padding:12px 14px;border-radius:16px;background:#ffffff0d}.history-item.wrong{border:1px solid rgba(255,127,80,.35)}.history-item.correct{border:1px solid rgba(154,255,170,.2)}.mapping{display:flex;flex-wrap:wrap;gap:10px;color:#f7f1e8b3}.auto-next-hint{margin-top:16px;color:#f7f1e8b8}.history-empty{color:#f7f1e8a3}@media(max-width:960px){.dashboard{grid-template-columns:1fr}.keyboard{grid-template-columns:repeat(6,minmax(0,1fr))}.result-zone{justify-content:space-between}}@media(max-width:640px){.app-shell{padding:24px 16px 32px}.control-panel{align-items:stretch}.field,.primary,.secondary{width:100%}.keyboard{grid-template-columns:repeat(4,minmax(0,1fr))}.result-zone{flex-direction:column;align-items:flex-start}}