@import "https://fonts.googleapis.com/css2?family=Nunito:wght@500;600;700;800&display=swap";:root{--color-bg:#fef6e4;--color-surface:#fff;--color-surface-hover:#fff3d6;--color-primary:#f582ae;--color-primary-hover:#f06292;--color-secondary:#8bd3dd;--color-accent:#f3d250;--color-text:#2d334a;--color-text-muted:#7a7fa0;--color-correct:#4caf50;--color-correct-bg:#e8f5e9;--color-wrong:#e57373;--color-wrong-bg:#fce4ec;--color-border:#e8dcc8;--color-baroque:#a78bfa;--color-classical:#60a5fa;--color-romantic:#f472b6;--color-20th:#34d399;--radius:12px;--radius-lg:20px;--radius-pill:999px;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:40px;--font-sans:"Nunito", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--shadow-sm:0 1px 3px #00000014;--shadow-md:0 4px 12px #0000001a;--shadow-lg:0 8px 24px #0000001f}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);min-height:100vh;line-height:1.6}#root{min-height:100vh}.layout{background:var(--color-bg);flex-direction:column;min-height:100dvh;display:flex}.header{padding:var(--space-sm) var(--space-md);padding-top:max(var(--space-sm), env(safe-area-inset-top));background:var(--color-primary);color:#fff;z-index:10;box-shadow:var(--shadow-sm);justify-content:space-between;align-items:center;display:flex;position:sticky;top:0}.header__title{letter-spacing:-.02em;font-size:1.1rem;font-weight:800}.main{width:100%;max-width:480px;padding:var(--space-md);padding-bottom:calc(72px + var(--space-md) + env(safe-area-inset-bottom,0px));-webkit-overflow-scrolling:touch;flex:1;margin:0 auto;overflow-y:auto}.bottom-nav{background:var(--color-surface);border-top:2px solid var(--color-border);padding-bottom:env(safe-area-inset-bottom,0px);z-index:10;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -2px 8px #0000000f}.bottom-nav__btn{color:var(--color-text-muted);font-family:var(--font-sans);padding:var(--space-sm) 0;cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border:none;flex-direction:column;flex:1;align-items:center;gap:2px;font-size:.8rem;font-weight:700;transition:color .15s;display:flex}.bottom-nav__btn--active{color:var(--color-primary)}.bottom-nav__icon{font-size:1.4rem;line-height:1;transition:transform .2s}.bottom-nav__btn--active .bottom-nav__icon{animation:2s ease-in-out infinite gentle-bounce}.bottom-nav__version{right:var(--space-sm);bottom:calc(env(safe-area-inset-bottom,0px) + 2px);color:var(--color-text-muted);opacity:.4;pointer-events:none;font-size:.6rem;position:absolute}.btn{border-radius:var(--radius);cursor:pointer;font-family:var(--font-sans);padding:var(--space-sm) var(--space-md);-webkit-tap-highlight-color:transparent;border:none;font-size:1rem;font-weight:700;transition:all .15s}.btn:disabled{opacity:.4;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff;padding:var(--space-md) var(--space-lg);border-radius:var(--radius-pill);width:100%;box-shadow:var(--shadow-md);letter-spacing:.02em;font-size:1.1rem}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover);box-shadow:var(--shadow-lg);transform:translateY(-1px)}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-lg{padding:var(--space-md) var(--space-xl);font-size:1.2rem}.btn-option{background:var(--color-surface);color:var(--color-text);border:2px solid var(--color-border);padding:var(--space-md);text-align:center;border-radius:var(--radius);min-height:52px;box-shadow:var(--shadow-sm);font-size:1rem;font-weight:600;transition:all .15s}.btn-option:hover{background:var(--color-surface-hover);border-color:var(--color-primary);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-option:active{background:var(--color-surface-hover);border-color:var(--color-primary);transform:translateY(0)}.header__logout{color:#fff;font-family:var(--font-sans);padding:var(--space-xs) var(--space-md);border-radius:var(--radius-pill);cursor:pointer;background:#fff3;border:none;font-size:.75rem;font-weight:700}.login{min-height:100dvh;padding:var(--space-md);background:var(--color-bg);justify-content:center;align-items:center;display:flex}.login-card{text-align:center;padding:var(--space-xl);width:100%;max-width:360px}.login__emoji{margin-bottom:var(--space-md);font-size:4rem;line-height:1;animation:3s ease-in-out infinite gentle-float}.login-card h1{margin-bottom:var(--space-sm);color:var(--color-text);font-size:2rem;font-weight:800}.login__subtitle{color:var(--color-text-muted);margin-bottom:var(--space-lg);font-size:1rem;font-weight:500;line-height:1.5}.login .btn-primary{background:#1db954}.login .btn-primary:hover:not(:disabled){background:#1ed760}.player{align-items:center;gap:var(--space-md);padding:var(--space-md);background:var(--color-surface);border-radius:var(--radius-lg);margin-bottom:var(--space-md);box-shadow:var(--shadow-md);display:flex;position:relative}.player__disc-wrapper{flex-shrink:0}.player__disc{background:conic-gradient(from 0deg, var(--color-primary) 0deg, var(--color-accent) 90deg, var(--color-secondary) 180deg, var(--color-primary) 360deg);width:56px;height:56px;box-shadow:var(--shadow-sm);border-radius:50%;justify-content:center;align-items:center;display:flex}.player__disc--spinning{animation:3s linear infinite spin}.player__disc-inner{background:var(--color-surface);border:3px solid var(--color-border);border-radius:50%;width:18px;height:18px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes gentle-bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-4px)}}@keyframes gentle-pulse{0%,to{transform:scale(1)}50%{transform:scale(1.08)}}@keyframes gentle-float{0%,to{transform:translateY(0)rotate(0)}25%{transform:translateY(-3px)rotate(2deg)}75%{transform:translateY(2px)rotate(-2deg)}}@keyframes shimmer{0%,to{opacity:1}50%{opacity:.7}}.player__info{flex:1;min-width:0}.player__track-name{white-space:nowrap;text-overflow:ellipsis;color:var(--color-text);font-size:.95rem;font-weight:700;overflow:hidden}.player__artist{color:var(--color-text-muted);font-size:.8rem;font-weight:500}.player__mystery{color:var(--color-primary);font-size:1rem;font-style:italic;font-weight:700;animation:2.5s ease-in-out infinite shimmer}.player__play-btn{background:var(--color-primary);color:#fff;cursor:pointer;width:48px;height:48px;box-shadow:var(--shadow-sm);border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:1.3rem;transition:all .15s;display:flex}.player__play-btn:hover:not(:disabled){background:var(--color-primary-hover);transform:scale(1.1);box-shadow:0 4px 16px #f582ae66}.player__play-btn:disabled{opacity:.4;cursor:not-allowed}.quiz-view{gap:var(--space-md);flex-direction:column;display:flex}.quiz-prompt{text-align:center;padding:var(--space-lg) 0}.quiz-prompt__emoji{margin-bottom:var(--space-sm);font-size:3rem;line-height:1;animation:2s ease-in-out infinite gentle-bounce}.quiz-prompt p{margin-bottom:var(--space-lg);color:var(--color-text-muted);font-size:1.1rem;font-weight:600}.quiz-section{animation:.3s fadeIn}.quiz-section h2{margin-bottom:var(--space-md);text-align:center;font-size:1.2rem;font-weight:800}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.quiz-options{gap:var(--space-sm);display:grid}.quiz-options--period{grid-template-columns:1fr 1fr}.quiz-options--period .btn-option:first-child{border-color:var(--color-baroque);color:var(--color-baroque)}.quiz-options--period .btn-option:nth-child(2){border-color:var(--color-classical);color:var(--color-classical)}.quiz-options--period .btn-option:nth-child(3){border-color:var(--color-romantic);color:var(--color-romantic)}.quiz-options--period .btn-option:nth-child(4){border-color:var(--color-20th);color:var(--color-20th)}.quiz-options--period .btn-option:first-child:hover{background:#f0ebff}.quiz-options--period .btn-option:nth-child(2):hover{background:#e8f3ff}.quiz-options--period .btn-option:nth-child(3):hover{background:#fce4ec}.quiz-options--period .btn-option:nth-child(4):hover{background:#e0f7ef}.quiz-options--composer{grid-template-columns:1fr}.feedback{padding:var(--space-lg);border-radius:var(--radius-lg);text-align:center;animation:.3s fadeIn}.feedback--correct{background:var(--color-correct-bg);border:2px solid var(--color-correct)}.feedback--incorrect{background:var(--color-wrong-bg);border:2px solid var(--color-wrong)}.feedback__emoji{margin-bottom:var(--space-sm);font-size:3rem;line-height:1;animation:1.5s ease-in-out infinite gentle-pulse}.feedback h2{margin-bottom:var(--space-md);font-size:1.4rem;font-weight:800}.feedback--correct h2{color:var(--color-correct)}.feedback--incorrect h2{color:var(--color-wrong)}.feedback__track-info{background:var(--color-surface);border-radius:var(--radius);padding:var(--space-md);margin-bottom:var(--space-md);text-align:left;box-shadow:var(--shadow-sm)}.feedback__piece{margin-bottom:var(--space-sm);color:var(--color-text);font-size:1rem;font-weight:700}.feedback__detail{gap:var(--space-sm);margin-bottom:var(--space-xs);font-size:.85rem;font-weight:500;display:flex}.feedback__answers{margin-bottom:var(--space-sm)}.feedback__row{justify-content:center;align-items:center;gap:var(--space-sm);margin-bottom:var(--space-sm);flex-wrap:wrap;font-size:.95rem;font-weight:600;display:flex}.feedback__label{color:var(--color-text-muted);text-align:right;min-width:100px;font-weight:500}.feedback__answer.correct{color:var(--color-correct);font-weight:700}.feedback__answer.wrong{color:var(--color-wrong);text-decoration:line-through}.feedback__correct{color:var(--color-correct);font-weight:700}.feedback .btn-primary{margin-top:var(--space-md)}.feedback__notes{background:var(--color-surface);border-radius:var(--radius);padding:var(--space-md);margin-top:var(--space-md);text-align:left;box-shadow:var(--shadow-sm);border-left:4px solid var(--color-secondary)}.feedback__notes-title{margin-bottom:var(--space-sm);color:var(--color-text);font-size:.95rem;font-weight:800}.feedback__notes-subtitle{margin-top:var(--space-sm);margin-bottom:var(--space-xs);color:var(--color-text);font-size:.85rem;font-weight:700}.feedback__notes-list{padding-left:var(--space-lg);color:var(--color-text-muted);font-size:.8rem;font-weight:500;line-height:1.7}.feedback__notes-list li{margin-bottom:2px}.feedback__notes-composers{margin-top:var(--space-sm);color:var(--color-primary);font-size:.8rem;font-weight:700}.score-bar{justify-content:center;align-items:center;gap:var(--space-lg);padding:var(--space-sm) var(--space-md);background:var(--color-surface);border-radius:var(--radius-pill);box-shadow:var(--shadow-sm);margin-bottom:var(--space-md);font-size:.9rem;font-weight:700;display:flex}.score-bar__item{align-items:center;gap:var(--space-xs);display:flex}.score-bar__value{color:var(--color-primary);font-weight:800}.score-bar__streak{color:var(--color-accent)}.score-bar__fire{animation:1s ease-in-out infinite gentle-pulse;display:inline-block}.history h2{margin-bottom:var(--space-md);font-weight:800}.history__empty{color:var(--color-text-muted);text-align:center;padding:var(--space-xl);font-weight:500}.history__list{gap:var(--space-sm);flex-direction:column;display:flex}.history__item{padding:var(--space-md);background:var(--color-surface);border-radius:var(--radius);box-shadow:var(--shadow-sm);border-left:4px solid #0000}.history__item--correct{border-left-color:var(--color-correct)}.history__item--wrong{border-left-color:var(--color-wrong)}.history__track{margin-bottom:var(--space-xs);font-weight:700}.history__details{gap:var(--space-xs);color:var(--color-text-muted);flex-direction:column;font-size:.875rem;font-weight:500;display:flex}.history__time{color:var(--color-text-muted);margin-top:var(--space-xs);font-size:.75rem}.stats h2{margin-bottom:var(--space-md);font-weight:800}.stats h3{margin-top:var(--space-lg);margin-bottom:var(--space-sm);color:var(--color-text-muted);font-size:1rem;font-weight:700}.stats__overview{gap:var(--space-sm);grid-template-columns:repeat(2,1fr);display:grid}.stats__card{background:var(--color-surface);padding:var(--space-md);border-radius:var(--radius);text-align:center;box-shadow:var(--shadow-sm)}.stats__value{color:var(--color-primary);font-size:1.75rem;font-weight:800}.stats__label{color:var(--color-text-muted);margin-top:var(--space-xs);font-size:.75rem;font-weight:600}.stats__table{gap:var(--space-xs);flex-direction:column;display:flex}.stats__row{padding:var(--space-sm) var(--space-md);background:var(--color-surface);border-radius:var(--radius);box-shadow:var(--shadow-sm);justify-content:space-between;font-size:.875rem;font-weight:600;display:flex}.countdown-bar{background:var(--color-border);border-radius:var(--radius-pill);width:100%;height:8px;margin-bottom:var(--space-md);overflow:hidden}.countdown-bar__fill{background:linear-gradient(90deg, var(--color-secondary), var(--color-primary));border-radius:var(--radius-pill);transform-origin:0;height:100%;transition:transform .1s linear}.quiz-prompt__actions{gap:var(--space-sm);flex-direction:column;display:flex}.btn-secondary{color:var(--color-text-muted);border:2px solid var(--color-border);padding:var(--space-md) var(--space-lg);border-radius:var(--radius-pill);width:100%;font-size:1rem;font-weight:700;font-family:var(--font-sans);cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;transition:all .15s}.btn-secondary:hover{border-color:var(--color-secondary);color:var(--color-text);background:#8bd3dd1a}.player__volume-btn{background:var(--color-bg);cursor:pointer;-webkit-tap-highlight-color:transparent;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:1.1rem;transition:all .15s;display:flex}.player__volume-btn:hover{background:var(--color-surface-hover);transform:scale(1.1)}.player__volume-popup{background:var(--color-surface);border-radius:var(--radius);padding:var(--space-sm) var(--space-md);box-shadow:var(--shadow-lg);border:2px solid var(--color-border);align-items:center;gap:var(--space-xs);z-index:5;flex-direction:column;min-width:160px;animation:.15s fadeIn;display:flex;position:absolute;bottom:calc(100% + 8px);right:0}.player__volume-label{color:var(--color-text-muted);font-size:.75rem;font-weight:700}.player__volume-slider{appearance:none;background:var(--color-border);border-radius:var(--radius-pill);cursor:pointer;outline:none;width:100%;height:6px}.player__volume-slider::-webkit-slider-thumb{appearance:none;background:var(--color-primary);border:3px solid var(--color-surface);width:20px;height:20px;box-shadow:var(--shadow-sm);cursor:pointer;border-radius:50%;transition:transform .1s}.player__volume-slider::-webkit-slider-thumb:hover{transform:scale(1.2)}.player__volume-slider::-moz-range-thumb{background:var(--color-primary);border:3px solid var(--color-surface);width:20px;height:20px;box-shadow:var(--shadow-sm);cursor:pointer;border-radius:50%}.player__disc--loading{animation:1.2s ease-in-out infinite disc-loading}@keyframes disc-loading{0%,to{opacity:.7;transform:scale(1)}50%{opacity:1;transform:scale(1.05)}}.update-banner{justify-content:center;align-items:center;gap:var(--space-md);padding:var(--space-sm) var(--space-md);background:linear-gradient(135deg, var(--color-secondary), var(--color-accent));border-radius:var(--radius);margin-bottom:var(--space-md);color:var(--color-text);box-shadow:var(--shadow-sm);font-size:.85rem;font-weight:700;animation:.3s fadeIn;display:flex}.update-banner__btn{background:var(--color-surface);border-radius:var(--radius-pill);padding:var(--space-xs) var(--space-md);font-family:var(--font-sans);cursor:pointer;color:var(--color-text);box-shadow:var(--shadow-sm);-webkit-tap-highlight-color:transparent;border:none;font-size:.8rem;font-weight:700;transition:all .15s}.update-banner__btn:hover{box-shadow:var(--shadow-md);transform:scale(1.05)}.loading{text-align:center;padding:var(--space-xl);color:var(--color-text-muted);font-weight:600}.warning{text-align:center;padding:var(--space-md);color:var(--color-wrong);font-weight:600}