:root{--bg: #0e2472;--surface: #ffffff;--surface2: #ddeaff;--border: #90bef0;--white: #fff;--header-bg: #060e30;--header-border: #1a4499;--primary: #0099ff;--primary-dim: #007acc;--primary-dark: #003a88;--accent: #ff3300;--accent-dim: #cc2200;--gold: #ffdd00;--gold-dark: #aa8800;--success: #00cc44;--success-dark: #007722;--error: #ff2222;--error-dark: #880000;--warning: #ff8800;--warning-dark: #885500;--primary-rgb: 0 153 255;--accent-rgb: 255 51 0;--success-rgb: 0 204 68;--error-rgb: 255 34 34;--warning-rgb: 255 136 0;--text: #162040;--text-muted: #4a6090;--text-dim: #8090b0;--text-on-dark: #ffffff;--text-gold: #ffdd00;--ranking-gold: #ffd700;--ranking-silver: #b8c8d8;--ranking-bronze: #cd7f32;--speed-divine: #ff1111;--speed-explosive: #ff6600;--speed-fast: #ffaa00;--speed-nice: #00cc44;--speed-cool: #00aaff;--speed-safe: #0055ff;--speed-close: #aa00ff;--speed-wire: #ff00aa;--radius: 14px;--radius-sm: 10px;--shadow: 0 6px 30px rgb(0 0 0 / .5)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0;-webkit-user-select:none;user-select:none;cursor:default}input,textarea{-webkit-user-select:text;user-select:text;cursor:text}html,body{height:100%;font-family:"M PLUS Rounded 1c",Noto Sans SC,Noto Sans KR,sans-serif;background:linear-gradient(160deg,#1e3a9e,#0e2472 45%,#07163e);background-attachment:fixed;color:var(--text);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;overflow-x:hidden;overflow-y:hidden}#root{height:100%;display:flex;flex-direction:column}.screen{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px 20px;min-height:0;overflow-x:hidden;overflow-y:auto}.screen-top{justify-content:flex-start;padding:0;overflow:hidden}.game-header{width:100%;background:var(--header-bg);border-bottom:3px solid var(--header-border);padding:10px 16px;display:flex;align-items:center;gap:12px;color:var(--text-on-dark);flex-shrink:0;min-height:52px}.game-header-title{font-size:1rem;font-weight:800;color:var(--text-on-dark);flex:1;white-space:nowrap}.game-header-score{font-size:1rem;font-weight:900;color:var(--gold);white-space:nowrap}.game-header-hiscore{font-size:.85rem;font-weight:700;color:#ffffffa6;white-space:nowrap}.game-footer{width:100%;background:var(--header-bg);border-top:2px solid var(--header-border);padding:7px 16px;text-align:center;color:#ffffff73;font-size:.72rem;font-weight:600;flex-shrink:0}.game-footer-link{color:inherit;text-decoration:none}.game-footer-link:hover{text-decoration:underline}.game-panel{flex:1;width:100%;display:flex;flex-direction:column;align-items:center;padding:16px 16px 20px;gap:12px;overflow-y:auto;min-height:0}h1{font-size:2rem;font-weight:900}h2{font-size:1.5rem;font-weight:900;color:var(--text)}h3{font-size:1.2rem;font-weight:700}.title-quiz{display:block;font-size:4.5rem;font-weight:900;color:#fff;-webkit-text-stroke:3px #0044cc;text-stroke:3px #0044cc;text-shadow:0 5px 0 #002288,0 0 40px rgba(30 150 255 / .7);letter-spacing:-.02em;line-height:1}.title-5sec{display:block;font-size:2.2rem;font-weight:900;color:#f40;-webkit-text-stroke:2px #770000;text-stroke:2px #770000;text-shadow:0 3px 0 #550000,0 0 25px rgba(255 60 0 / .6);line-height:1.1}.title-game{font-size:2.2rem;font-weight:900;text-align:center;color:#fff;text-shadow:0 2px 0 #002288}.subtitle{color:#ffffffb3;font-size:.88rem;font-weight:600;text-align:center}.btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:18px 24px;border:none;border-radius:var(--radius);font-size:1.1rem;font-weight:900;font-family:inherit;cursor:pointer;transition:transform .08s,box-shadow .08s;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent;position:relative}.btn:active{transform:translateY(5px)!important}.btn:disabled{opacity:.4;cursor:not-allowed}.btn-primary{background:linear-gradient(180deg,#4bf,#07d);color:#fff;border:3px solid #005acc;box-shadow:0 7px #038,0 9px 24px #0000008c;text-shadow:0 1px 3px rgb(0 0 0 / .4)}.btn-primary:active{box-shadow:0 2px #038,0 3px 12px #0006!important}.btn-primary:hover:not(:disabled){background:linear-gradient(180deg,#5cf,#08e)}.btn-accent{background:linear-gradient(180deg,#4c7,#0a4);color:#fff;border:3px solid #008833;box-shadow:0 7px #041,0 9px 24px #0000008c;text-shadow:0 1px 3px rgb(0 0 0 / .4)}.btn-accent:active{box-shadow:0 2px #041,0 3px 12px #0006!important}.btn-accent:hover:not(:disabled){background:linear-gradient(180deg,#5d8,#0b5)}.btn-surface{background:linear-gradient(180deg,#f8fbff,#ddeaff);color:var(--text);border:3px solid #a0c4f0;box-shadow:0 6px #7aaade,0 8px 20px #0006;text-shadow:none}.btn-surface:active{box-shadow:0 2px #7aaade,0 3px 10px #0000004d!important}.btn-ghost{background:#ffffff1a;color:#ffffffd9;border:2px solid rgba(255 255 255 / .3);box-shadow:none}.btn-ghost:hover:not(:disabled){background:#ffffff2e;border-color:#ffffff80}.btn-danger{background:linear-gradient(180deg,#f44,#c00);color:#fff;border:3px solid #880000;box-shadow:0 6px #500,0 8px 20px #00000080}.btn-sm{padding:10px 18px;font-size:.92rem;border-radius:var(--radius-sm)}.card{background:var(--surface);border:2px solid var(--border);border-radius:var(--radius);padding:16px;width:100%;box-shadow:0 3px #8ab0e0}.input{width:100%;padding:14px 16px;background:var(--surface2);border:3px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-size:1rem;font-family:inherit;font-weight:700;outline:none;transition:border-color .2s,border-width .1s}.input:focus{border-color:var(--primary);background:#fff}.input::placeholder{color:var(--text-dim);font-weight:400}.input-label{font-size:.9rem;font-weight:800;color:var(--text-on-dark);margin-bottom:6px;display:block}.input-group{display:flex;flex-direction:column;gap:4px;width:100%}.timer-bar-wrap{width:100%;height:10px;background:#ffffff26;border-radius:5px;overflow:hidden;border:1px solid rgba(255 255 255 / .2)}.timer-bar{height:100%;border-radius:5px;transition:background-color .3s}.timer-cells{display:flex;gap:5px;width:100%}.timer-cell{flex:1;height:26px;background:#ffffff1f;border:2px solid rgba(255 255 255 / .25);border-radius:5px;transition:background-color .08s,border-color .08s}.timer-cell.filled{background:linear-gradient(180deg,#f33,#a00);border-color:#700;box-shadow:0 0 10px #f009,inset 0 1px #ff787866}.choices{display:flex;flex-direction:column;gap:8px;width:100%}.choice-btn{display:flex;align-items:center;gap:12px;width:100%;padding:12px 14px;background:#fff;border:3px solid #a8ccf0;border-radius:var(--radius-sm);color:var(--text);font-size:1rem;font-family:inherit;font-weight:700;cursor:pointer;text-align:left;transition:border-color .1s,background .1s,transform .08s,box-shadow .08s;-webkit-tap-highlight-color:transparent;min-height:54px;box-shadow:0 4px #7aaaee}.choice-btn:hover:not(:disabled){border-color:#09f;background:#e8f4ff;transform:translateY(-2px);box-shadow:0 6px #06c}.choice-btn:active:not(:disabled){transform:translateY(3px);box-shadow:0 1px #7aaaee}.choice-btn:disabled{cursor:default}.choice-btn.correct{background:linear-gradient(180deg,#cfd,#aec);border-color:#0a3;color:#051;box-shadow:0 4px #072,0 0 12px #00c83c59}.choice-btn.wrong{background:linear-gradient(180deg,#fcc,#faa);border-color:#c00;color:#600;box-shadow:0 4px #800,0 0 12px #dc00004d}.choice-btn.highlight-correct{background:#edfff4;border-color:#0c4;border-style:dashed}.choice-btn.selected{background:linear-gradient(180deg,#e0f0ff,#c8e8ff);border-color:#09f;box-shadow:0 4px #06c}.choice-num{display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:linear-gradient(180deg,#4af,#07d);border:2px solid #0055bb;color:#fff;font-size:.95rem;font-weight:900;flex-shrink:0;box-shadow:0 3px #038}.choice-btn.correct .choice-num{background:linear-gradient(180deg,#2e6,#0a3);border-color:#072;box-shadow:0 3px #041}.choice-btn.wrong .choice-num{background:linear-gradient(180deg,#f44,#c00);border-color:#800;box-shadow:0 3px #500}.stat-row{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:2px solid var(--border)}.stat-row:last-child{border-bottom:none}.stat-label{color:var(--text-muted);font-size:.9rem;font-weight:700}.stat-value{font-size:1.15rem;font-weight:900}.stat-value.highlight{color:var(--accent)}.pack-list{display:flex;flex-direction:column;width:100%;border-radius:var(--radius);overflow:hidden;border:2px solid #a8ccf0;box-shadow:0 4px #7aaaee}.pack-card{background:var(--surface);border-bottom:2px solid #c8def8;padding:14px 16px;cursor:pointer;transition:background .1s,transform .08s;-webkit-tap-highlight-color:transparent;display:flex;align-items:center;gap:12px}.pack-card:last-child{border-bottom:none}.card .pack-list{border:1px solid #c8def8;box-shadow:none;margin:0 -2px}.pack-card:nth-child(2n){background:#f0f6ff}.pack-card:hover{background:#cce8ff}.pack-card:active{transform:scale(.99)}.pack-card.selected{background:linear-gradient(90deg,#c0e4ff,#e4f4ff);border-color:#09f}.pack-title{font-size:1.15rem;font-weight:800;flex:1;color:var(--text)}.pack-meta{font-size:.78rem;color:var(--text-muted);font-weight:700}.pack-score-badge{display:flex;align-items:center;gap:3px;font-size:.88rem;font-weight:900;color:#960}.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:.72rem;font-weight:800}.badge-featured{background:#fff5b0;color:#750;border:2px solid #ffcc00}.badge-recommended{background:#ffe4cc;color:#c40;border:2px solid #ff8844}.player-list{display:flex;flex-direction:column;gap:8px;width:100%}.player-row{display:flex;align-items:center;gap:12px;padding:10px 14px;background:var(--surface);border-radius:var(--radius-sm);border:2px solid var(--border);box-shadow:0 3px #88aad8}.player-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(180deg,#4af,#07d);border:2px solid #0055bb;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:1rem;color:#fff;flex-shrink:0;box-shadow:0 3px #038}.player-name{flex:1;font-weight:800}.player-badge{font-size:.75rem;color:var(--text-muted);font-weight:700}.room-code-display{font-size:3.4rem;font-weight:900;letter-spacing:.22em;font-variant-numeric:tabular-nums;color:#fd0;-webkit-text-stroke:3px #885500;text-stroke:3px #885500;text-align:center;text-shadow:0 4px 0 #663300,0 0 28px rgba(255 220 0 / .5);-webkit-user-select:text;user-select:text;cursor:text}.countdown-number{font-size:10rem;font-weight:900;line-height:1;text-align:center;color:#fff;-webkit-text-stroke:4px #0044cc;text-stroke:4px #0044cc;text-shadow:0 7px 0 #002288,0 0 50px rgba(0 150 255 / .8)}@keyframes score-bar-grow{0%{transform:scaleX(0)}to{transform:scaleX(1)}}.score-bar-wrap{width:100%;height:12px;background:#c8d8f0;border-radius:6px;overflow:hidden;border:2px solid #a0bce0}.score-bar{height:100%;border-radius:6px;background:linear-gradient(90deg,#d00,#fc0);transform-origin:left;animation:score-bar-grow .8s cubic-bezier(.16,1,.3,1) both;box-shadow:inset 0 1px #fff6}.ranking-list{display:flex;flex-direction:column;gap:10px;width:100%}.ranking-row{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--surface);border:2px solid var(--border);border-radius:var(--radius-sm);box-shadow:0 4px #8ab0e0}.ranking-rank{font-size:1.4rem;font-weight:900;width:44px;text-align:center;flex-shrink:0}.ranking-rank.gold{color:#c80;-webkit-text-stroke:1px #664400;text-shadow:0 2px 0 #442200}.ranking-rank.silver{color:#5a7090;text-shadow:0 1px 0 #304050}.ranking-rank.bronze{color:#8d5030;text-shadow:0 1px 0 #4a2010}.ranking-name{flex:1;font-weight:800;font-size:1.05rem}.ranking-score{font-size:1.2rem;font-weight:900;color:#d00}.question-body{font-size:1.25rem;font-weight:700;line-height:1.45;text-align:center;padding:10px 0 4px}.question-number{font-size:1.6rem;font-weight:900;color:#fff;text-shadow:0 2px 0 #002288,0 0 18px rgba(0 150 255 / .5)}.score-display{display:flex;align-items:center;justify-content:space-between;width:100%}.score-current{font-size:1.4rem;font-weight:900;color:var(--gold);text-shadow:0 1px 0 #886600}@keyframes feedback-blink{0%,50%{opacity:1}51%,to{opacity:0}}@keyframes point-pop{0%{transform:scale(.5) translateY(-8px);opacity:0}55%{transform:scale(1.3) translateY(0);opacity:1}to{transform:scale(1) translateY(0);opacity:1}}.point-bonus{display:inline-block;animation:point-pop .4s ease-out forwards;font-weight:900}.speed-label{display:block;font-size:1.5rem;font-weight:900;margin-top:4px;animation:point-pop .35s ease-out forwards}.feedback-bar{width:100%;padding:14px;border-radius:var(--radius-sm);text-align:center;font-size:1.15rem;font-weight:900;margin-top:8px;border:3px solid}.feedback-bar.correct{background:linear-gradient(180deg,#0e5,#0a3);border-color:#072;color:#fff;text-shadow:0 1px 3px rgb(0 0 0 / .4);box-shadow:0 5px #041,0 0 20px #00c83c66}.feedback-bar.wrong{background:linear-gradient(180deg,#f44,#c00);border-color:#800;color:#fff;text-shadow:0 1px 3px rgb(0 0 0 / .4);box-shadow:0 5px #500,0 0 20px #dc000066}.feedback-bar.timeout{background:linear-gradient(180deg,#fa0,#c70);border-color:#850;color:#fff;text-shadow:0 1px 3px rgb(0 0 0 / .4);box-shadow:0 5px #530,0 0 20px #c8780066}.feedback-bar .speed-label{color:var(--white)!important}.stack{display:flex;flex-direction:column;gap:12px;width:100%}.stack-lg{gap:20px}.stack-sm{gap:8px}.row{display:flex;align-items:center;gap:10px}.spacer{flex:1}.text-center{text-align:center}.text-muted{color:var(--text-muted)}.text-success{color:var(--success)}.text-error{color:var(--error)}.text-accent{color:var(--accent)}.mt-auto{margin-top:auto}.mb-4{margin-bottom:16px}.divider{width:100%;height:2px;background:var(--border);border-radius:1px}.spinner{width:40px;height:40px;border:4px solid rgba(255 255 255 / .2);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes floatQ{0%{transform:translateY(110vh) rotate(-12deg);opacity:0}8%{opacity:1}92%{opacity:1}to{transform:translateY(-15vh) rotate(12deg);opacity:0}}.title-q-bg{position:absolute;top:0;right:0;bottom:0;left:0;overflow:hidden;pointer-events:none;z-index:0}.title-q{position:absolute;font-weight:900;font-family:Arial Black,Impact,Helvetica Neue,sans-serif;color:#3c78ff2e;line-height:1;animation:floatQ linear infinite;-webkit-user-select:none;user-select:none}@media(prefers-reduced-motion:reduce){.title-q-bg{display:none}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes pop{0%{transform:scale(.75);opacity:0}70%{transform:scale(1.08)}to{transform:scale(1);opacity:1}}@keyframes winner-pop{0%{transform:scale(.4) rotate(-8deg);opacity:0}60%{transform:scale(1.15) rotate(3deg);opacity:1}80%{transform:scale(.95) rotate(-1deg)}to{transform:scale(1) rotate(0);opacity:1}}.anim-fade{animation:fadeIn .35s ease both}.anim-pop{animation:pop .4s cubic-bezier(.175,.885,.32,1.275) both}input[type=checkbox].settings-check{-moz-appearance:none;appearance:none;-webkit-appearance:none;width:24px;height:24px;border:2.5px solid #90bef0;border-radius:6px;background:#ddeaff;cursor:pointer;position:relative;flex-shrink:0;transition:background .15s,border-color .15s}input[type=checkbox].settings-check:checked{background:#05c;border-color:#003a99}input[type=checkbox].settings-check:checked:after{content:"";position:absolute;left:6px;top:2px;width:7px;height:13px;border:3px solid #ffffff;border-top:none;border-left:none;transform:rotate(45deg)}input[type=range].settings-range{-webkit-appearance:none;-moz-appearance:none;appearance:none;height:6px;background:transparent;cursor:pointer;width:120px}input[type=range].settings-range::-webkit-slider-runnable-track{height:6px;border-radius:3px;background:#ddeaff;border:1px solid #b8d4f0}input[type=range].settings-range::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;background:linear-gradient(180deg,#4bf,#07d);border:2px solid #005acc;box-shadow:0 2px #038;margin-top:-7px;cursor:pointer}input[type=range].settings-range::-moz-range-track{height:6px;border-radius:3px;background:#ddeaff;border:1px solid #b8d4f0}input[type=range].settings-range::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:linear-gradient(180deg,#4bf,#07d);border:2px solid #005acc;cursor:pointer}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ffffff4d;border-radius:3px}