@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;600;800&family=Noto+Sans+SC:wght@300;400;500;700&display=swap";:root{--font-sans: "Outfit", "Inter", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--bg-base: #090d16;--bg-surface: #111726;--bg-surface-glass: rgba(17, 23, 38, .6);--border-color: rgba(255, 255, 255, .08);--border-color-hover: rgba(99, 102, 241, .3);--color-primary: #6366f1;--color-primary-light: rgba(99, 102, 241, .1);--color-primary-glow: rgba(99, 102, 241, .15);--color-success: #10b981;--color-success-light: rgba(16, 185, 129, .1);--color-error: #f43f5e;--color-error-light: rgba(244, 63, 94, .1);--color-warning: #f59e0b;--color-warning-light: rgba(245, 158, 11, .1);--txt-main: #f8fafc;--txt-muted: #94a3b8;--txt-muted-more: #64748b;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .15);--shadow-md: 0 8px 24px rgba(0, 0, 0, .25);--shadow-lg: 0 16px 48px rgba(0, 0, 0, .35);--radius-sm: 8px;--radius-md: 16px;--radius-lg: 24px}@media (prefers-color-scheme: light){:root{--bg-base: #f8fafc;--bg-surface: #ffffff;--bg-surface-glass: rgba(255, 255, 255, .7);--border-color: rgba(0, 0, 0, .06);--border-color-hover: rgba(99, 102, 241, .4);--color-primary: #4f46e5;--color-primary-light: rgba(79, 70, 229, .08);--color-primary-glow: rgba(79, 70, 229, .1);--color-success: #059669;--color-success-light: rgba(5, 150, 105, .08);--color-error: #e11d48;--color-error-light: rgba(225, 29, 72, .08);--color-warning: #d97706;--color-warning-light: rgba(217, 119, 6, .08);--txt-main: #0f172a;--txt-muted: #475569;--txt-muted-more: #64748b;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .05);--shadow-md: 0 8px 24px rgba(0, 0, 0, .08);--shadow-lg: 0 16px 48px rgba(0, 0, 0, .12)}}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}body{font-family:var(--font-sans);background-color:var(--bg-base);color:var(--txt-main);min-height:100vh;min-height:100dvh;width:100vw;display:flex;flex-direction:column;overflow-x:hidden;position:relative;line-height:1.5;transition:background-color .3s ease,color .3s ease}#app{flex:1;display:flex;flex-direction:column;width:100%;max-width:500px;margin:0 auto;background-color:var(--bg-base);box-shadow:0 0 40px #0000004d;position:relative;min-height:100vh;min-height:100dvh;overflow-x:hidden}#app:before{content:"";position:absolute;top:-10%;left:-20%;width:140%;height:60%;background:radial-gradient(circle,#6366f11f,#6366f100 70%);z-index:0;pointer-events:none}.page{position:relative;z-index:1;display:flex;flex-direction:column;flex:1;padding:20px 16px;animation:fadeIn .4s cubic-bezier(.16,1,.3,1);overflow-y:auto;overflow-x:hidden}.topbar{padding:12px 4px 20px;display:flex;flex-direction:column;gap:4px}.topbar h1{font-family:"Outfit",var(--font-sans);font-weight:800;font-size:28px;letter-spacing:-.5px;background:linear-gradient(135deg,var(--txt-main) 30%,var(--color-primary) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.topbar .sub{font-size:13px;color:var(--txt-muted);font-weight:500;text-transform:uppercase;letter-spacing:1px}.card{background:var(--bg-surface-glass);border:1px solid var(--border-color);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-radius:var(--radius-md);padding:16px;margin-bottom:16px;box-shadow:var(--shadow-sm);transition:border-color .3s ease,transform .3s ease,box-shadow .3s ease}.card:hover{border-color:var(--border-color-hover);box-shadow:var(--shadow-md)}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:12px}.stat-card{background:var(--bg-surface-glass);border:1px solid var(--border-color);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:var(--radius-md);padding:14px 8px;text-align:center;box-shadow:var(--shadow-sm);transition:all .3s cubic-bezier(.25,.8,.25,1)}.stat-card.pri{background:linear-gradient(135deg,#6366f114,#6366f105);border-color:#6366f133}.stat-card.succ{background:linear-gradient(135deg,#10b98114,#10b98105);border-color:#10b98133}.stat-card.err{background:linear-gradient(135deg,#f43f5e14,#f43f5e05);border-color:#f43f5e33}.stat-card .val{font-family:"Outfit",var(--font-sans);font-size:24px;font-weight:700;line-height:1.2}.stat-card.pri .val{color:var(--color-primary)}.stat-card.succ .val{color:var(--color-success)}.stat-card.err .val{color:var(--color-error)}.stat-card .lbl{font-size:11px;color:var(--txt-muted);margin-top:4px;font-weight:500}.home-actions{display:flex;flex-direction:column;gap:12px;margin-top:8px}.home-action{display:flex;align-items:center;gap:14px;background:var(--bg-surface-glass);border:1px solid var(--border-color);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:var(--radius-md);padding:16px;cursor:pointer;box-shadow:var(--shadow-sm);transition:all .25s cubic-bezier(.4,0,.2,1)}.home-action:hover{transform:translateY(-2px);border-color:var(--border-color-hover);box-shadow:var(--shadow-md);background:#6366f10a}.home-action:active{transform:translateY(0) scale(.98)}.home-action .icon{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:20px;box-shadow:var(--shadow-sm)}.home-action .icon.daily{background:#6366f126;color:#818cf8}.home-action .icon.practice{background:#f59e0b26;color:#fbbf24}.home-action .icon.wrong{background:#f43f5e26;color:#fb7185}.home-action .icon.fav{background:#10b98126;color:#34d399}.home-action .info{flex:1}.home-action .title{font-size:16px;font-weight:600;color:var(--txt-main)}.home-action .desc{font-size:12px;color:var(--txt-muted);margin-top:2px}.home-action .arrow{font-size:18px;color:var(--txt-muted-more);transition:transform .2s ease}.home-action:hover .arrow{transform:translate(3px);color:var(--color-primary)}.nav-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--border-color);background:var(--bg-surface-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);position:sticky;top:0;z-index:10}.nav-header .left-side{display:flex;align-items:center;gap:12px}.nav-header h2{font-size:17px;font-weight:700}.btn-icon{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;background:#ffffff0d;border:1px solid var(--border-color);transition:all .2s ease;font-size:16px}@media (prefers-color-scheme: light){.btn-icon{background:#00000008}}.btn-icon:hover{background:var(--color-primary-light);border-color:var(--color-primary);color:var(--color-primary);transform:scale(1.05)}.btn-icon:active{transform:scale(.95)}.quiz-container{display:flex;flex-direction:column;height:100vh;height:100dvh}.progress-wrap{padding:12px 16px;display:flex;align-items:center;gap:12px;background:#ffffff03}.progress-bar{flex:1;height:6px;background:#ffffff0f;border-radius:3px;overflow:hidden;position:relative}@media (prefers-color-scheme: light){.progress-bar{background:#0000000f}}.progress-fill{height:100%;background:linear-gradient(90deg,var(--color-primary) 0%,#818cf8 100%);border-radius:3px;transition:width .4s cubic-bezier(.4,0,.2,1);box-shadow:0 0 10px #6366f166}.question-counter{font-family:"Outfit",var(--font-sans);font-size:12px;color:var(--txt-muted);font-weight:600;white-space:nowrap}.quiz-scroll{flex:1;overflow-y:auto;padding:20px 16px;display:flex;flex-direction:column;gap:16px}.question-meta{display:flex;align-items:center;justify-content:space-between;font-size:12px}.badge{font-size:11px;font-weight:700;padding:4px 8px;border-radius:6px;letter-spacing:.5px}.badge-judge{background:#f59e0b26;color:#f59e0b;border:1px solid rgba(245,158,11,.3)}.badge-single{background:#6366f126;color:#818cf8;border:1px solid rgba(99,102,241,.3)}.badge-multi{background:#ec489926;color:#f472b6;border:1px solid rgba(236,72,153,.3)}.question-text{font-size:18px;font-weight:600;line-height:1.45;color:var(--txt-main);animation:slideUp .3s ease-out}.multi-hint{font-size:12px;color:var(--color-warning);background:var(--color-warning-light);border:1px solid rgba(245,158,11,.2);padding:8px 12px;border-radius:8px;font-weight:500}.options-list{display:flex;flex-direction:column;gap:12px}.opt-card{display:flex;align-items:center;gap:14px;background:var(--bg-surface-glass);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:16px;cursor:pointer;box-shadow:var(--shadow-sm);transition:all .25s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.opt-card:hover{transform:translateY(-1px);border-color:var(--border-color-hover);background:#ffffff0a}@media (prefers-color-scheme: light){.opt-card:hover{background:#00000003}}.opt-card:active{transform:scale(.98)}.opt-card .letter{width:32px;height:32px;border-radius:50%;background:#ffffff0d;border:1px solid var(--border-color);display:flex;align-items:center;justify-content:center;font-family:"Outfit",var(--font-sans);font-weight:700;font-size:14px;transition:all .2s ease;flex-shrink:0}@media (prefers-color-scheme: light){.opt-card .letter{background:#00000008}}.opt-card .text{font-size:15px;color:var(--txt-main);flex:1}.opt-card.selected{border-color:var(--color-primary);background:var(--color-primary-glow)}.opt-card.selected .letter{background:var(--color-primary);border-color:var(--color-primary);color:#fff;box-shadow:0 0 8px #6366f166}.opt-card.correct{border-color:var(--color-success)!important;background:var(--color-success-light)!important}.opt-card.correct .letter{background:var(--color-success)!important;border-color:var(--color-success)!important;color:#fff!important}.opt-card.wrong{border-color:var(--color-error)!important;background:var(--color-error-light)!important}.opt-card.wrong .letter{background:var(--color-error)!important;border-color:var(--color-error)!important;color:#fff!important}.bottom-bar{padding:16px;border-top:1px solid var(--border-color);background:var(--bg-surface-glass);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}.btn{width:100%;height:52px;border-radius:var(--radius-md);border:none;font-size:16px;font-weight:600;font-family:var(--font-sans);cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:all .25s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow-sm)}.btn:active{transform:scale(.97)}.btn-pri{background:linear-gradient(135deg,var(--color-primary) 0%,#4f46e5 100%);color:#fff;box-shadow:0 4px 14px #6366f14d}.btn-pri:hover{box-shadow:0 6px 20px #6366f166}.btn-pri:disabled{background:var(--border-color);color:var(--txt-muted-more);box-shadow:none;cursor:not-allowed}.btn-out{background:transparent;border:1px solid var(--border-color);color:var(--txt-main)}.btn-out:hover{background:#ffffff08;border-color:var(--txt-muted-more)}@media (prefers-color-scheme: light){.btn-out:hover{background:#00000005}}.btn-sm{height:36px;padding:0 16px;font-size:13px;border-radius:var(--radius-sm)}.btn-ghost{background:transparent;box-shadow:none;border:1px solid transparent}.btn-ghost:hover{background:#ffffff0a}.answer-feedback{border-radius:var(--radius-md);padding:16px;font-size:14px;line-height:1.6;font-weight:500;animation:slideUp .35s cubic-bezier(.16,1,.3,1);margin-top:8px;border:1px solid transparent}.answer-feedback.ok{background:var(--color-success-light);border-color:#10b98133;color:var(--color-success)}.answer-feedback.fail{background:var(--color-error-light);border-color:#f43f5e33;color:var(--color-error)}.result-wrap{background:var(--bg-surface-glass);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:32px 16px;text-align:center;box-shadow:var(--shadow-md);margin-bottom:24px;display:flex;flex-direction:column;align-items:center}.result-emoji{font-size:64px;animation:bounce 2s infinite}.result-pct{font-family:"Outfit",var(--font-sans);font-size:56px;font-weight:800;color:var(--color-primary);margin-top:12px;line-height:1.1}.result-summary{font-size:15px;color:var(--txt-muted);margin-top:4px}.result-stats{display:flex;gap:32px;margin-top:24px;border-top:1px solid var(--border-color);padding-top:20px;width:80%;justify-content:center}.result-stat .n{font-family:"Outfit",var(--font-sans);font-size:24px;font-weight:700}.result-stat .l{font-size:11px;color:var(--txt-muted);margin-top:4px}.wrong-list{display:flex;flex-direction:column;gap:12px;margin-bottom:16px}.wrong-item{display:flex;align-items:flex-start;gap:12px;background:var(--bg-surface-glass);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:16px;cursor:pointer;transition:all .25s ease;position:relative}.wrong-item:hover{border-color:var(--border-color-hover);background:#ffffff05}.wrong-item .content{flex:1}.wrong-item .q{font-size:14px;font-weight:500;line-height:1.5;color:var(--txt-main);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.wrong-item .meta{display:flex;align-items:center;gap:8px;margin-top:8px}.wrong-item .action-btn{width:28px;height:28px;border-radius:50%;border:none;background:#ffffff0d;color:var(--txt-muted);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;font-size:12px}@media (prefers-color-scheme: light){.wrong-item .action-btn{background:#00000008}}.wrong-item .action-btn:hover{background:#f43f5e26;color:var(--color-error);transform:scale(1.1)}.input-group{display:flex;gap:10px;width:100%}.input-field{flex:1;height:44px;border-radius:var(--radius-sm);border:1px solid var(--border-color);background:#ffffff08;color:var(--txt-main);padding:0 16px;font-size:14px;font-family:var(--font-sans);outline:none;transition:all .25s ease}@media (prefers-color-scheme: light){.input-field{background:#00000005}}.input-field:focus{border-color:var(--color-primary);background:#ffffff0d;box-shadow:0 0 10px #6366f126}.toast-container{position:fixed;top:24px;left:50%;transform:translate(-50%);z-index:1000;display:flex;flex-direction:column;gap:8px;pointer-events:none;width:90%;max-width:320px}.toast{background:linear-gradient(135deg,#1e1b4b,#312e81);border:1px solid rgba(99,102,241,.5);color:#fff!important;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:var(--radius-sm);padding:12px 20px;font-size:14px;font-weight:600;box-shadow:0 20px 25px -5px #0006,0 10px 10px -5px #0006;display:flex;align-items:center;gap:10px;pointer-events:auto;animation:toastIn .35s cubic-bezier(.16,1,.3,1) forwards}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes slideUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes toastIn{0%{opacity:0;transform:translate3d(0,-20px,0) scale(.9)}to{opacity:1;transform:translateZ(0) scale(1)}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-8px)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.skeleton{background:linear-gradient(90deg,#ffffff08 25%,#ffffff14,#ffffff08 75%);background-size:200% 100%;animation:shimmer 1.5s infinite linear;border-radius:var(--radius-sm);display:block}@media (prefers-color-scheme: light){.skeleton{background:linear-gradient(90deg,#00000008 25%,#0000000f,#00000008 75%);background-size:200% 100%}}.skeleton-text{height:16px;margin-bottom:8px;width:100%}.skeleton-title{height:24px;margin-bottom:16px;width:60%;border-radius:var(--radius-sm)}.skeleton-card{height:80px;border-radius:var(--radius-md);margin-bottom:12px;border:1px solid var(--border-color)}.tabs-container{display:flex;gap:8px;margin-bottom:16px;overflow-x:auto;padding:4px 2px;scrollbar-width:none}.tabs-container::-webkit-scrollbar{display:none}.tab-btn{padding:8px 16px;border-radius:var(--radius-sm);border:1px solid var(--border-color);font-size:13px;font-weight:600;cursor:pointer;transition:all .25s cubic-bezier(.4,0,.2,1);background:var(--bg-surface-glass);color:var(--txt-muted);white-space:nowrap;box-shadow:var(--shadow-sm)}.tab-btn:hover{border-color:var(--border-color-hover);color:var(--txt-main)}.tab-btn:active{transform:scale(.96)}.tab-btn.active{background:var(--color-primary-glow);border-color:var(--color-primary);color:var(--color-primary);box-shadow:0 0 10px #6366f133}