.streak-banner{background:var(--bg-white);border:1px solid var(--border-color);border-radius:12px;align-items:center;gap:10px;padding:10px 14px;transition:border-color .3s;display:flex}.streak-banner.streak-active{border-color:var(--streak-flame)}.streak-banner.streak-compact{border-radius:8px;gap:8px;padding:6px 10px}.streak-flame-icon{flex-shrink:0;justify-content:center;align-items:center;display:flex}.streak-flame-animated svg{animation:1.5s ease-in-out infinite flamePulse}@keyframes flamePulse{0%,to{transform:scale(1)translateY(0)}25%{transform:scale(1.08)translateY(-1px)}50%{transform:scale(1)translateY(0)}75%{transform:scale(1.04)translateY(-.5px)}}.streak-today-done svg{filter:drop-shadow(0 0 4px var(--streak-flame))}.streak-info{flex-direction:column;flex:1;gap:4px;min-width:0;display:flex}.streak-days{color:var(--text-dark);font-size:.95rem;font-weight:700}.streak-inactive .streak-days{color:var(--text-muted)}.streak-milestone-track{align-items:center;gap:6px;display:flex}.streak-milestone-bar{background:var(--border-color);border-radius:2px;flex:1;height:4px;overflow:hidden}.streak-milestone-fill{background:linear-gradient(90deg, var(--streak-flame), var(--streak-flame-dark));height:100%;transition:width .4s var(--ease-smooth);border-radius:2px}.streak-milestone-label{color:var(--text-muted);white-space:nowrap;font-size:.7rem}.streak-freeze{opacity:.5;flex-shrink:0;align-items:center;gap:2px;display:flex}.streak-freeze.has-freeze{opacity:1}.streak-freeze-count{color:var(--freeze-blue);font-size:.75rem;font-weight:600}.streak-freeze:not(.has-freeze) .streak-freeze-count{color:var(--text-muted)}.streak-loading-placeholder{background:linear-gradient(90deg, var(--bg-light) 25%, var(--border-color) 50%, var(--bg-light) 75%);background-size:200% 100%;border-radius:6px;width:100%;height:24px;animation:1.5s infinite shimmer}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}
.xp-popup-layer{z-index:1100;pointer-events:none;flex-direction:column-reverse;align-items:center;gap:6px;display:flex;position:fixed;bottom:80px;left:50%;transform:translate(-50%)}.xp-popup-item{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);animation:xpPopFloat 1.2s var(--ease-out-expo) forwards;background:#fffffff2;border-radius:20px;align-items:center;gap:6px;padding:6px 16px;display:inline-flex;box-shadow:0 2px 12px #0000001a}.xp-popup-bonus{border:1px solid var(--xp-gold);background:linear-gradient(135deg,#f1c40f26,#f39c121a)}.xp-popup-plus{color:var(--xp-gold);font-size:1rem;font-weight:700}.xp-popup-bonus .xp-popup-plus{background:linear-gradient(135deg, var(--xp-gold), var(--streak-flame));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.xp-popup-mult{color:var(--streak-flame);font-size:.78rem;font-weight:600}@keyframes xpPopFloat{0%{opacity:0;transform:translateY(20px)scale(.8)}20%{opacity:1;transform:translateY(-4px)scale(1.05)}40%{transform:translateY(-16px)scale(1)}to{opacity:0;transform:translateY(-60px)scale(.9)}}
.lum-overlay{z-index:2000;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#0009;justify-content:center;align-items:center;animation:.4s ease-out lumOverlayIn;display:flex;position:fixed;inset:0}@keyframes lumOverlayIn{0%{opacity:0}to{opacity:1}}.lum-content{background:var(--bg-white);animation:lumContentIn .5s var(--ease-celebratory) forwards;border-radius:24px;flex-direction:column;align-items:center;gap:6px;width:90vw;max-width:360px;padding:40px 48px;display:flex;position:relative;overflow:hidden;box-shadow:0 20px 60px #0000004d}@keyframes lumContentIn{0%{opacity:0;transform:scale(.7)translateY(40px)}60%{opacity:1;transform:scale(1.04)translateY(-4px)}to{opacity:1;transform:scale(1)translateY(0)}}.lum-glow{pointer-events:none;background:radial-gradient(circle,#f1c40f33 0%,#f1c40f0d 40%,#0000 70%);border-radius:50%;width:160%;height:160%;animation:2s ease-in-out infinite lumGlowPulse;position:absolute;top:-60%;left:-30%}@keyframes lumGlowPulse{0%,to{opacity:.6;transform:scale(1)}50%{opacity:1;transform:scale(1.1)}}.lum-radial-burst{pointer-events:none;background:conic-gradient(#0000 0deg,#f1c40f14 10deg,#0000 20deg,#f1c40f14 30deg,#0000 40deg,#f1c40f14 50deg,#0000 60deg,#f1c40f14 70deg,#0000 80deg,#f1c40f14 90deg,#0000 100deg,#f1c40f14 110deg,#0000 120deg);width:200%;height:200%;animation:8s linear infinite lumBurstSpin;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}@keyframes lumBurstSpin{0%{transform:translate(-50%,-50%)rotate(0)}to{transform:translate(-50%,-50%)rotate(360deg)}}.lum-heading{color:var(--xp-gold);letter-spacing:.05em;margin-bottom:8px;font-size:1.1rem;font-weight:600;position:relative}.lum-level-number{animation:lumNumberBounce .6s var(--ease-spring) .3s both;align-items:baseline;gap:4px;display:flex;position:relative}@keyframes lumNumberBounce{0%{opacity:0;transform:scale(.3)}50%{opacity:1;transform:scale(1.15)}to{opacity:1;transform:scale(1)}}.lum-lv-prefix{color:var(--text-light);font-size:1.2rem;font-weight:700}.lum-lv-value{background:linear-gradient(135deg, var(--xp-gold), var(--streak-flame));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:3rem;font-weight:800;line-height:1}.lum-title-ja{color:var(--text-dark);font-size:1.3rem;font-weight:700;animation:.5s .6s both lumTitleFade;position:relative}.lum-title-zh{color:var(--text-light);font-size:.9rem;animation:.5s .8s both lumTitleFade;position:relative}@keyframes lumTitleFade{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.lum-congrats{color:var(--text-dark);margin-top:12px;font-size:.95rem;position:relative}.lum-xp-total{color:var(--text-light);font-size:.82rem;position:relative}.lum-dismiss-btn{background:linear-gradient(135deg, var(--xp-gold), var(--streak-flame));color:#fff;cursor:pointer;border:none;border-radius:24px;margin-top:20px;padding:10px 32px;font-size:1rem;font-weight:700;transition:transform .15s,box-shadow .15s;position:relative;box-shadow:0 4px 16px #f1c40f4d}.lum-dismiss-btn:hover{transform:translateY(-1px);box-shadow:0 6px 20px #f1c40f66}.lum-dismiss-btn:active{transform:scale(.97)}
.bem-overlay{z-index:2100;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:#000000a6;justify-content:center;align-items:center;animation:.4s ease-out bemOverlayIn;display:flex;position:fixed;inset:0}@keyframes bemOverlayIn{0%{opacity:0}to{opacity:1}}.bem-content{background:var(--bg-white);animation:bemContentIn .5s var(--ease-celebratory,cubic-bezier(.34, 1.56, .64, 1)) forwards;border-radius:24px;flex-direction:column;align-items:center;gap:8px;width:90vw;max-width:360px;padding:40px 48px;display:flex;position:relative;overflow:hidden;box-shadow:0 20px 60px #0000004d}@keyframes bemContentIn{0%{opacity:0;transform:scale(.65)translateY(40px)}60%{opacity:1;transform:scale(1.05)translateY(-4px)}to{opacity:1;transform:scale(1)translateY(0)}}.bem-glow{pointer-events:none;background:radial-gradient(circle,#f1c40f38 0%,#f1c40f0f 40%,#0000 70%);border-radius:50%;width:160%;height:160%;animation:2s ease-in-out infinite bemGlowPulse;position:absolute;top:-60%;left:-30%}@keyframes bemGlowPulse{0%,to{opacity:.6;transform:scale(1)}50%{opacity:1;transform:scale(1.12)}}.bem-particles{pointer-events:none;position:absolute;inset:0;overflow:hidden}.bem-particle{background:var(--xp-gold,#f1c40f);opacity:0;width:6px;height:6px;animation:bemParticleFloat 2.5s ease-out calc(var(--i) * .15s) infinite;border-radius:50%;position:absolute}.bem-particle:nth-child(odd){background:var(--streak-flame,#e67e22);width:4px;height:4px}.bem-particle:nth-child(3n){background:#fff;width:3px;height:3px;box-shadow:0 0 4px #f1c40f99}@keyframes bemParticleFloat{0%{opacity:0;transform:translate(calc(180px * cos(var(--i) * 30deg)), calc(180px * sin(var(--i) * 30deg))) scale(0);top:50%;left:50%}15%{opacity:1;transform:translate(calc(40px * cos(var(--i) * 30deg)), calc(40px * sin(var(--i) * 30deg))) scale(1)}to{opacity:0;transform:translate(calc(120px * cos(var(--i) * 30deg + 10deg)), calc(-80px + 120px * sin(var(--i) * 30deg))) scale(.3)}}.bem-heading{color:var(--xp-gold,#f1c40f);letter-spacing:.06em;margin-bottom:8px;font-size:1rem;font-weight:600;animation:.5s .2s both bemFadeUp;position:relative}.bem-icon-wrapper{border:3px solid var(--xp-gold,#f1c40f);width:80px;height:80px;animation:bemIconBounce .6s var(--ease-spring,cubic-bezier(.34, 1.56, .64, 1)) .3s both;background:linear-gradient(135deg,#fff8e1 0%,#fff3cd 100%);border-radius:50%;justify-content:center;align-items:center;display:flex;position:relative;box-shadow:0 4px 20px #f1c40f4d}.bem-icon{font-size:2.5rem;line-height:1}@keyframes bemIconBounce{0%{opacity:0;transform:scale(.2)}50%{opacity:1;transform:scale(1.15)}to{opacity:1;transform:scale(1)}}.bem-name-ja{color:var(--text-dark);margin-top:4px;font-size:1.3rem;font-weight:700;animation:.5s .5s both bemFadeUp;position:relative}.bem-name-zh{color:var(--text-light);font-size:.9rem;animation:.5s .6s both bemFadeUp;position:relative}.bem-condition{color:var(--text-light);margin-top:4px;font-size:.82rem;animation:.5s .7s both bemFadeUp;position:relative}@keyframes bemFadeUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.bem-dismiss-btn{background:linear-gradient(135deg, var(--xp-gold,#f1c40f), var(--streak-flame,#e67e22));color:#fff;cursor:pointer;border:none;border-radius:24px;margin-top:20px;padding:10px 32px;font-size:1rem;font-weight:700;transition:transform .15s,box-shadow .15s;animation:.5s .8s both bemFadeUp;position:relative;box-shadow:0 4px 16px #f1c40f4d}.bem-dismiss-btn:hover{transform:translateY(-1px);box-shadow:0 6px 20px #f1c40f66}.bem-dismiss-btn:active{transform:scale(.97)}@media (max-width:480px){.bem-content{padding:32px 24px}.bem-icon-wrapper{width:68px;height:68px}.bem-icon{font-size:2rem}.bem-name-ja{font-size:1.15rem}}
.sm-overlay{z-index:9999;background:#00000080;justify-content:center;align-items:center;animation:.3s fadeIn;display:flex;position:fixed;inset:0;overflow:hidden}.sm-card{z-index:1;background:var(--bg-white);text-align:center;width:90%;max-width:320px;animation:fadeInUp .4s var(--ease-spring) forwards;border-radius:20px;flex-direction:column;align-items:center;gap:12px;padding:32px 40px;display:flex;position:relative;box-shadow:0 8px 40px #00000026}.sm-tier-bronze .sm-card{border:2px solid var(--badge-bronze)}.sm-tier-silver .sm-card{border:2px solid var(--badge-silver)}.sm-tier-gold .sm-card{border:2px solid var(--badge-gold);box-shadow:0 8px 40px #ffd70033}.sm-tier-diamond .sm-card{border:2px solid var(--badge-diamond);box-shadow:0 8px 40px #b9f2ff4d}.sm-tier-legendary .sm-card{border:2px solid var(--xp-gold);box-shadow:0 8px 40px #f1c40f4d}.sm-fullscreen{background:radial-gradient(circle,#f1c40f26,#0009)}.sm-emoji{width:56px;height:56px;color:var(--streak-flame);line-height:0}.sm-emoji svg{width:100%;height:100%}.sm-emoji-bounce{animation:smEmojiBounce .6s var(--ease-spring) forwards}@keyframes smEmojiBounce{0%{opacity:0;transform:scale(.3)}50%{opacity:1;transform:scale(1.2)}to{opacity:1;transform:scale(1)}}.sm-title{color:var(--text-dark);margin:0;font-size:1.4rem;font-weight:800}.sm-days{color:var(--streak-flame);margin:0;font-size:1rem;font-weight:600}.sm-subtitle{color:var(--text-light);margin:0;font-size:.88rem}.sm-dismiss-btn{background:linear-gradient(135deg, var(--streak-flame), var(--streak-flame-dark));color:#fff;cursor:pointer;border:none;border-radius:24px;margin-top:8px;padding:10px 32px;font-size:1rem;font-weight:600;transition:transform .15s,box-shadow .15s}.sm-dismiss-btn:hover{transform:translateY(-1px);box-shadow:0 4px 16px #f39c124d}.sm-dismiss-btn:active{transform:scale(.96)}.sm-confetti{pointer-events:none;position:absolute;inset:0;overflow:hidden}.sm-confetti-piece{border-radius:2px;animation:3s ease-in-out forwards smConfettiFall;position:absolute;top:-10px}@keyframes smConfettiFall{0%{opacity:1;transform:translateY(0)rotate(0)}to{opacity:0;transform:translateY(calc(100vh + 20px))rotate(720deg)}}
.lsc-overlay{z-index:1900;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#00000080;justify-content:center;align-items:center;animation:.3s ease-out lscOverlayIn;display:flex;position:fixed;inset:0}.lsc-overlay.lsc-exiting{animation:.3s ease-in forwards lscOverlayOut}@keyframes lscOverlayIn{0%{opacity:0}to{opacity:1}}@keyframes lscOverlayOut{0%{opacity:1}to{opacity:0}}.lsc-card{background:var(--bg-white);width:92vw;max-width:400px;animation:lscCardIn .45s var(--ease-celebratory) forwards;border-radius:20px;flex-direction:column;display:flex;position:relative;overflow:hidden;box-shadow:0 16px 48px #0003}.lsc-exiting .lsc-card{animation:.25s ease-in forwards lscCardOut}@keyframes lscCardIn{0%{opacity:0;transform:scale(.85)translateY(30px)}60%{opacity:1;transform:scale(1.02)translateY(-2px)}to{opacity:1;transform:scale(1)translateY(0)}}@keyframes lscCardOut{0%{opacity:1;transform:scale(1)translateY(0)}to{opacity:0;transform:scale(.95)translateY(20px)}}.lsc-top-bar{background:linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));flex-shrink:0;height:5px}.lsc-header{text-align:center;padding:24px 28px 8px}.lsc-title{color:var(--text-dark);margin:0;font-size:1.25rem;font-weight:700;line-height:1.4}.lsc-divider{background:var(--border-color);height:1px;margin:12px 28px}.lsc-stats{flex-direction:column;gap:8px;padding:0 28px;display:flex}.lsc-stat-row{justify-content:space-between;align-items:center;display:flex}.lsc-stat-label{color:var(--text-light);font-size:.92rem;font-weight:500}.lsc-stat-value{color:var(--text-dark);font-size:.95rem;font-weight:700}.lsc-stat-value.lsc-xp{color:var(--xp-gold)}.lsc-stat-value.lsc-accuracy-high{color:var(--correct-green)}.lsc-stat-value.lsc-accuracy-mid{color:var(--accent)}.lsc-stat-value.lsc-accuracy-low{color:var(--error-warm)}.lsc-gamification{text-align:center;padding:0 28px}.lsc-streak{color:var(--streak-flame);margin-bottom:4px;font-size:1.05rem;font-weight:700}.lsc-level-info{color:var(--text-light);margin-bottom:8px;font-size:.88rem;font-weight:500}.lsc-progress-bar-container{align-items:center;gap:8px;margin-bottom:4px;padding:0 28px;display:flex}.lsc-progress-track{background:#edf2f7;border-radius:4px;flex:1;height:8px;overflow:hidden}.lsc-progress-fill{background:linear-gradient(90deg, var(--xp-gold), var(--streak-flame));height:100%;transition:width .6s var(--ease-smooth);border-radius:4px}.lsc-progress-label{color:var(--text-muted);white-space:nowrap;font-size:.78rem;font-weight:500}.lsc-actions{gap:12px;padding:20px 28px 24px;display:flex}.lsc-btn{cursor:pointer;border:none;border-radius:12px;flex:1;justify-content:center;align-items:center;gap:6px;padding:11px 16px;font-size:.92rem;font-weight:600;transition:transform .12s,box-shadow .12s;display:flex}.lsc-btn:active{transform:scale(.97)}.lsc-btn-share{color:var(--text-dark);background:#edf2f7}.lsc-btn-share:hover{background:#e2e8f0}.lsc-btn-continue{background:linear-gradient(135deg, var(--primary), #3b3ad4);color:#fff;box-shadow:0 4px 12px #4948ec4d}.lsc-btn-continue:hover{transform:translateY(-1px);box-shadow:0 6px 16px #4948ec66}.lsc-btn-share.lsc-sharing{opacity:.7;pointer-events:none}@media (max-width:480px){.lsc-card{border-radius:16px;max-width:96vw}.lsc-header{padding:20px 20px 6px}.lsc-stats,.lsc-gamification,.lsc-progress-bar-container{padding-left:20px;padding-right:20px}.lsc-divider{margin-left:20px;margin-right:20px}.lsc-actions{flex-direction:column;padding:16px 20px 20px}}
.dsc-overlay{z-index:1900;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#00000080;justify-content:center;align-items:center;animation:.3s ease-out dscOverlayIn;display:flex;position:fixed;inset:0}.dsc-overlay.dsc-exiting{animation:.3s ease-in forwards dscOverlayOut}@keyframes dscOverlayIn{0%{opacity:0}to{opacity:1}}@keyframes dscOverlayOut{0%{opacity:1}to{opacity:0}}.dsc-card{background:var(--bg-white);width:92vw;max-width:380px;animation:dscCardIn .45s var(--ease-celebratory) forwards;border-radius:20px;flex-direction:column;display:flex;position:relative;overflow:hidden;box-shadow:0 16px 48px #0003}.dsc-exiting .dsc-card{animation:.25s ease-in forwards dscCardOut}@keyframes dscCardIn{0%{opacity:0;transform:scale(.85)translateY(30px)}60%{opacity:1;transform:scale(1.02)translateY(-2px)}to{opacity:1;transform:scale(1)translateY(0)}}@keyframes dscCardOut{0%{opacity:1;transform:scale(1)translateY(0)}to{opacity:0;transform:scale(.95)translateY(20px)}}.dsc-top-bar{background:linear-gradient(90deg, var(--success), var(--primary), var(--accent));flex-shrink:0;height:5px}.dsc-header{text-align:center;padding:24px 28px 4px}.dsc-title{color:var(--text-dark);margin:0;font-size:1.2rem;font-weight:700}.dsc-date{color:var(--text-light);margin-top:4px;font-size:.85rem}.dsc-divider{background:var(--border-color);height:1px;margin:14px 28px}.dsc-stats{flex-direction:column;gap:8px;padding:0 28px;display:flex}.dsc-stat-row{justify-content:space-between;align-items:center;display:flex}.dsc-stat-label{color:var(--text-light);font-size:.92rem;font-weight:500}.dsc-stat-value{color:var(--text-dark);font-size:.95rem;font-weight:700}.dsc-stat-value.dsc-xp{color:var(--xp-gold)}.dsc-motivation{text-align:center;padding:0 28px}.dsc-streak{color:var(--streak-flame);margin-bottom:6px;font-size:1.05rem;font-weight:700}.dsc-encouragement{color:var(--text-light);font-size:.92rem;font-weight:500}.dsc-actions{gap:12px;padding:20px 28px 24px;display:flex}.dsc-btn{cursor:pointer;border:none;border-radius:12px;flex:1;justify-content:center;align-items:center;gap:6px;padding:11px 16px;font-size:.92rem;font-weight:600;transition:transform .12s,box-shadow .12s;display:flex}.dsc-btn:active{transform:scale(.97)}.dsc-btn-share{color:var(--text-dark);background:#edf2f7}.dsc-btn-share:hover{background:#e2e8f0}.dsc-btn-home{background:linear-gradient(135deg, var(--success), #059669);color:#fff;box-shadow:0 4px 12px #10b9814d}.dsc-btn-home:hover{transform:translateY(-1px);box-shadow:0 6px 16px #10b98166}.dsc-btn-share.dsc-sharing{opacity:.7;pointer-events:none}@media (max-width:480px){.dsc-card{border-radius:16px;max-width:96vw}.dsc-header{padding:20px 20px 4px}.dsc-stats,.dsc-motivation{padding-left:20px;padding-right:20px}.dsc-divider{margin-left:20px;margin-right:20px}.dsc-actions{flex-direction:column;padding:16px 20px 20px}}
.auth-overlay{z-index:9999;-webkit-backdrop-filter:blur(16px)saturate(1.4);background:#ffffff73;justify-content:center;align-items:center;animation:.3s ease-out authOverlayIn;display:flex;position:fixed;inset:0}@keyframes authOverlayIn{0%{opacity:0}to{opacity:1}}.auth-modal{background:#fff;border-radius:20px;width:400px;max-width:92vw;padding:32px;animation:.35s cubic-bezier(.4,0,.2,1) authModalIn;box-shadow:0 20px 60px #0000001a,0 0 0 1px #0000000a}@keyframes authModalIn{0%{opacity:0;transform:translateY(12px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}.auth-modal-brand{justify-content:space-between;align-items:center;margin-bottom:28px;display:flex}.auth-modal-brand-main{align-items:center;gap:14px;display:flex}.auth-modal-logo{color:#fff;background:linear-gradient(135deg,#4948ec,#6b46f3);border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;font-size:.85rem;font-weight:800;display:flex;box-shadow:0 4px 12px #4948ec33}.auth-modal-close{color:#94a3b8;cursor:pointer;background:0 0;border:none;padding:0;font-size:28px;line-height:1}.auth-modal-close:hover{color:#0f172a}.auth-modal-title{color:#121c34;margin:0;font-size:1.2rem;font-weight:700}.auth-modal-subtitle{color:#8b95a5;margin:2px 0 0;font-size:.85rem}.auth-modal-error{color:#dc2626;background:#fef2f2;border-radius:10px;justify-content:space-between;align-items:center;gap:8px;margin-bottom:16px;padding:10px 14px;font-size:.85rem;display:flex}.auth-modal-error button{color:#dc2626;cursor:pointer;background:0 0;border:none;padding:0;font-size:1.1rem;line-height:1}.auth-modal-form{flex-direction:column;gap:12px;display:flex}.auth-modal-input{color:#121c34;background:#f9fafb;border:1px solid #e5e7eb;border-radius:12px;height:48px;padding:0 16px;font-size:.95rem;transition:border-color .15s,box-shadow .15s}.auth-modal-input:focus{background:#fff;border-color:#4948ec;outline:none;box-shadow:0 0 0 3px #4948ec1a}.auth-modal-input::placeholder{color:#b0b8c4}.auth-modal-submit{color:#fff;cursor:pointer;background:linear-gradient(135deg,#4948ec,#6b46f3);border:none;border-radius:12px;height:48px;font-size:.95rem;font-weight:600;transition:box-shadow .2s,transform .15s}.auth-modal-submit:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 20px #4948ec4d}.auth-modal-submit:active:not(:disabled){transform:translateY(0)}.auth-modal-submit:disabled{opacity:.6;cursor:not-allowed}.auth-modal-spinner{border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:18px;height:18px;animation:.6s linear infinite authSpin;display:inline-block}@keyframes authSpin{to{transform:rotate(360deg)}}.auth-modal-divider{color:#c0c7d1;align-items:center;gap:12px;margin:20px 0;font-size:.8rem;display:flex}.auth-modal-divider:before,.auth-modal-divider:after{content:"";background:#e5e7eb;flex:1;height:1px}.auth-modal-google{color:#334155;cursor:pointer;background:#fff;border:1px solid #e5e7eb;border-radius:12px;justify-content:center;align-items:center;gap:10px;width:100%;height:48px;font-size:.95rem;font-weight:500;transition:background .15s,border-color .15s,box-shadow .15s;display:flex}.auth-modal-google:hover:not(:disabled){background:#f9fafb;border-color:#d1d5db;box-shadow:0 2px 8px #0000000a}.auth-modal-google:disabled{opacity:.6;cursor:not-allowed}.auth-modal-sent{text-align:center;padding:8px 0}.auth-modal-sent-icon{margin-bottom:12px}.auth-modal-sent h3{color:#121c34;margin:0 0 8px;font-size:1.1rem;font-weight:700}.auth-modal-sent p{color:#475569;margin:0;font-size:.9rem}.auth-modal-sent strong{color:#4948ec}.auth-modal-sent-hint{color:#8b95a5;margin-top:4px;font-size:.82rem}.auth-modal-link-btn{color:#4948ec;cursor:pointer;background:0 0;border:none;border-radius:8px;margin-top:16px;padding:6px 16px;font-size:.88rem;font-weight:600;transition:background .15s}.auth-modal-link-btn:hover{background:#4948ec0f}@media (max-width:480px){.auth-modal{border-radius:16px;padding:24px 20px}}
:root{--primary:#4948ec;--primary-light:#4948ec14;--secondary:#6366f3;--accent:#f7633b;--success:#10b981;--text-dark:#121c34;--text-light:#121c3499;--text-muted:#121c3466;--bg-light:#f8f8f9;--bg-white:#fff;--border-color:#e5e7eb;--sidebar-width:360px;--error:#ef4444;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--radius-2xl:24px;--radius-pill:999px;--radius-nav:50px;--shadow-xs:0 1px 3px #121c340a;--shadow-sm:0 4px 16px #121c3408;--shadow-md:0 4px 20px #121c340d;--shadow-lg:0 14px 28px #6366f138;--space-xs:4px;--space-sm:8px;--space-md:12px;--space-lg:16px;--space-xl:20px;--space-2xl:24px;--space-3xl:32px;--space-4xl:48px;--ease-spring:cubic-bezier(.34, 1.56, .64, 1);--ease-smooth:cubic-bezier(.4, 0, .2, 1);--ease-bounce:cubic-bezier(.68, -.55, .265, 1.55);--ease-out-expo:cubic-bezier(.19, 1, .22, 1);--streak-flame:#f39c12;--streak-flame-dark:#e74c3c;--xp-gold:#f1c40f;--error-warm:#e17055;--badge-bronze:#cd7f32;--badge-silver:silver;--badge-gold:gold;--badge-diamond:#b9f2ff;--freeze-blue:#74b9ff;--combo-glow:#f1c40f4d;--correct-green:#00b894;--correct-green-light:#00b8941a;--error-warm-light:#e170551a;--ease-celebratory:cubic-bezier(.22, 1, .36, 1)}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-light);color:var(--text-dark);height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6;overflow:hidden}#root{height:100vh;overflow:hidden}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInLeft{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}@keyframes fadeInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes glow{0%,to{box-shadow:0 0 5px #4948ec80}50%{box-shadow:0 0 20px #4948eccc,0 0 30px #4948ec66}}@keyframes ripple{0%{opacity:.5;transform:scale(0)}to{opacity:0;transform:scale(4)}}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}@keyframes typing{0%{width:0}to{width:100%}}@keyframes heartbeat{0%,to{transform:scale(1)}14%{transform:scale(1.1)}28%{transform:scale(1)}42%{transform:scale(1.1)}70%{transform:scale(1)}}.app-container{flex-wrap:wrap;min-height:100vh;display:flex}.mobile-header{z-index:200;background:linear-gradient(135deg,#121c34 0%,#0d1425 100%);border-bottom:1px solid #374151;justify-content:space-between;align-items:center;height:56px;padding:0 16px;display:none;position:fixed;top:0;left:0;right:0}.menu-toggle{cursor:pointer;background:#ffffff1a;border:none;border-radius:10px;justify-content:center;align-items:center;width:40px;height:40px;transition:background .2s;display:flex}.menu-toggle:hover{background:#ffffff26}.hamburger{flex-direction:column;gap:4px;display:flex}.hamburger span{background:#fff;border-radius:1px;width:18px;height:2px;transition:all .3s;display:block}.mobile-title{color:#fff;font-size:1.1rem;font-weight:600}.mobile-progress{color:#10b981;background:#10b98133;border-radius:10px;justify-content:center;align-items:center;width:40px;height:40px;font-size:.75rem;font-weight:600;display:flex}.sidebar-overlay{z-index:150;opacity:0;pointer-events:none;background:#00000080;transition:opacity .3s;display:none;position:fixed;inset:0}.sidebar-overlay.open{opacity:1;pointer-events:auto}.sidebar-rail{z-index:110;background:#fff;border-right:1px solid #eceef2;flex-direction:column;justify-content:space-between;align-items:center;width:72px;height:100vh;padding:16px 0 12px;display:flex;position:fixed;top:0;left:0}.sidebar-rail-top{flex-direction:column;align-items:center;gap:24px;display:flex}.sidebar-rail-icon{color:#94a3b8;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:3px;width:56px;height:52px;text-decoration:none;transition:all .18s cubic-bezier(.4,0,.2,1);display:flex}.sidebar-rail-icon:hover{color:#475569;background:#f5f6f8}.sidebar-rail-icon.active{color:#4948ec;background:#4948ec14}.sidebar-rail-icon svg{flex-shrink:0}.sidebar-rail-label{letter-spacing:.01em;font-size:10px;font-weight:500;line-height:1}.sidebar-rail-ai-text{letter-spacing:-.03em;background:linear-gradient(135deg,#8b5cf6,#4948ec);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:13px;font-style:italic;font-weight:800}.sidebar-rail-icon-ai.active .sidebar-rail-ai-text{background:linear-gradient(135deg,#6b46f3,#4948ec);-webkit-background-clip:text;background-clip:text}.sidebar-rail-bottom{flex-direction:column;align-items:center;gap:14px;display:flex}.sidebar-rail-avatar{cursor:pointer;background:linear-gradient(135deg,#4948ec,#6b46f3);border:none;border-radius:50%;justify-content:center;align-items:center;width:34px;height:34px;padding:0;transition:box-shadow .2s,transform .15s;display:flex;overflow:hidden}.sidebar-rail-avatar:hover{transform:scale(1.06);box-shadow:0 0 0 3px #4948ec26}.sidebar-rail-avatar img{object-fit:cover;width:100%;height:100%}.sidebar-rail-avatar span{color:#fff;font-size:.75rem;font-weight:700}.sidebar-lang-switcher{justify-content:center;align-items:center;display:flex;position:relative}.sidebar-lang-btn{color:#475569;cursor:pointer;letter-spacing:-.02em;background:#ffffffe6;border:1.5px solid #e2e8f0;border-radius:10px;justify-content:center;align-items:center;width:32px;height:32px;font-size:.7rem;font-weight:700;transition:all .2s;display:flex}.sidebar-lang-btn:hover{color:#4948ec;background:#4948ec0d;border-color:#4948ec;transform:scale(1.08)}.sidebar-lang-popup{-webkit-backdrop-filter:blur(20px);z-index:9999;background:#fffffffa;border:1px solid #0000000f;border-radius:14px;min-width:150px;padding:6px;animation:.18s ease-out langPopIn;position:absolute;bottom:0;left:calc(100% + 10px);box-shadow:0 12px 40px #0000001f,0 0 0 1px #00000008}@keyframes langPopIn{0%{opacity:0;transform:translate(-4px)scale(.96)}to{opacity:1;transform:translate(0)scale(1)}}.sidebar-lang-option{cursor:pointer;text-align:left;background:0 0;border:none;border-radius:10px;align-items:center;gap:10px;width:100%;padding:8px 12px;transition:all .15s;display:flex}.sidebar-lang-option:hover{background:#f1f5f9}.sidebar-lang-option.active{background:#4948ec0f}.sidebar-lang-option-icon{color:#475569;background:#f1f5f9;border-radius:7px;flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;font-size:.7rem;font-weight:700;display:flex}.sidebar-lang-option.active .sidebar-lang-option-icon{color:#fff;background:#4948ec}.sidebar-lang-option-label{color:#334155;flex:1;font-size:.82rem;font-weight:500}.sidebar-lang-option.active .sidebar-lang-option-label{color:#4948ec;font-weight:600}.sidebar-lang-check{color:#4948ec;flex-shrink:0}.sidebar-panel{z-index:100;background:#fff;border-right:1px solid #eceef2;flex-direction:column;min-width:220px;max-width:400px;height:100vh;transition:width 50ms ease-out;animation:.25s cubic-bezier(.4,0,.2,1) panelSlideIn;display:flex;position:fixed;top:0;left:72px}@keyframes panelSlideIn{0%{opacity:0;transform:translate(-12px)}to{opacity:1;transform:translate(0)}}.sidebar-panel-header{border-bottom:1px solid #eceef2;padding:16px 16px 12px}.sidebar{display:none}.sidebar-header{padding:20px 20px 16px}.sidebar-brand-link{color:inherit;align-items:center;gap:10px;padding:0;text-decoration:none;display:flex}.sidebar-brand-link:hover .sidebar-brand-logo{box-shadow:0 4px 12px #4948ec40}.sidebar-brand-logo{color:#fff;letter-spacing:-.02em;background:linear-gradient(135deg,#4948ec,#6b46f3);border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:.78rem;font-weight:800;transition:box-shadow .2s;display:inline-flex;box-shadow:0 2px 8px #4948ec2e}.sidebar-brand-name{color:#121c34;letter-spacing:-.01em;font-size:1.05rem;font-weight:700}.sidebar-course-empty-hint{color:#9ca3af;margin:0;padding:16px;font-size:.85rem}.sidebar-streak-area{display:none}.overall-progress{flex-direction:column;gap:8px;display:flex}.overall-progress-bar{background:var(--border-color);border-radius:3px;flex:1;height:6px;overflow:hidden}.overall-progress-fill{height:100%;transition:width .5s var(--ease-out-expo);background:linear-gradient(90deg,#10b981,#4948ec);border-radius:3px}.overall-progress-fill.gojuon{background:linear-gradient(90deg,#10b981,#059669);transition:width .3s}.overall-progress-text{color:var(--text-light);white-space:nowrap;font-size:.75rem}.sidebar-streak{background:linear-gradient(135deg,#f59e0b1a,#fbbf2414);border:1px solid #f59e0b33;border-radius:10px;align-items:center;gap:6px;margin-bottom:12px;padding:8px 12px;font-size:.85rem;display:flex}.streak-fire{font-size:1.1rem;animation:2s ease-in-out infinite 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