.vk-app{max-width:1320px;--gold:#f4ce83;--vk-muted:#a0aec3}.vk-app [hidden]{display:none!important}.vk-app button,.vk-app input,.vk-app textarea,.vk-app select{font:inherit}.vk-app button{line-height:1.5}.vk-app input,.vk-app textarea,.vk-app select{width:100%;min-width:0;background:#0e1624;border:1px solid #324056;border-radius:9px;padding:12px;color:var(--text)}.vk-app textarea{resize:vertical;line-height:1.8}.vk-app label{display:block;font-size:12px;color:#bac7db;line-height:1.7;margin:0 0 8px}.vk-app label input,.vk-app label select{margin-top:7px}.vk-app input:focus-visible,.vk-app textarea:focus-visible,.vk-app select:focus-visible{outline:2px solid var(--mint);outline-offset:2px}.vk-app h2,.vk-app h3,.vk-app h4,.vk-app p{overflow-wrap:anywhere}.vk-hero{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:48px 0 38px}.vk-hero h1{font-size:clamp(27px,3.1vw,40px);line-height:1.4}.vk-hero h1 span{color:var(--gold)}.vk-hero p:not(.eyebrow){color:var(--vk-muted);font-size:14px;line-height:1.9;margin-bottom:0}.vk-rank{width:260px;display:grid;grid-template-columns:60px 1fr;gap:18px;align-items:center;padding:20px 24px;border:1px solid #5a4932;border-radius:18px;background:linear-gradient(135deg,#f4ce8310,transparent)}.vk-crown{color:var(--gold);font-size:63px;line-height:1}.vk-rank>div{display:flex;flex-direction:column;gap:5px}.vk-rank span:not(.vk-crown){font-size:11px;color:var(--gold)}.vk-rank strong{font-size:25px}.vk-rank #rank-next{color:var(--vk-muted);font-size:10px}.vk-app progress{appearance:none;width:100%;height:5px;border:none;border-radius:20px;overflow:hidden;background:#263146}.vk-app progress::-webkit-progress-bar{background:#263146}.vk-app progress::-webkit-progress-value{background:var(--mint);border-radius:20px}.vk-rank progress{grid-column:1/-1}.vk-rank progress::-webkit-progress-value{background:var(--gold)}.vk-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:30px;align-items:start}.vk-sidebar{padding:22px 18px;border:1px solid var(--border);border-radius:16px;background:#121b29}.vk-section-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}.vk-section-head h2,.vk-section-head h3{font-size:16px;letter-spacing:-.4px;margin:0}.vk-muted{color:var(--vk-muted);font-size:12px;line-height:1.8}.vk-badge{display:inline-block;flex-shrink:0;padding:5px 9px;background:#9bf6cf10;color:var(--mint);border:1px solid #9bf6cf25;border-radius:7px;font-size:10px;letter-spacing:.5px}.vk-book-list{display:flex;flex-direction:column;gap:8px;margin:22px 0}.vk-book{padding:14px 12px;text-align:left;border:1px solid transparent;border-radius:10px;background:#182335;width:100%;overflow-wrap:anywhere}.vk-book[aria-pressed=true]{background:#9bf6cf0d;border-color:#659582;color:var(--mint)}.vk-book strong{display:block;font-size:13px;line-height:1.6}.vk-book span{display:block;font-size:11px;color:var(--vk-muted);margin-top:6px}.vk-inline{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.vk-inline input{flex:1;min-width:100px}.vk-primary,.vk-secondary,.vk-icon{border-radius:9px;padding:11px 17px;font-weight:700;border:1px solid transparent;display:inline-flex;align-items:center;justify-content:center;text-decoration:none;white-space:nowrap}.vk-primary{background:var(--mint);color:#10271e}.vk-primary:hover{background:#c3ffe3}.vk-secondary,.vk-icon{background:#1c2a3e;border-color:#34465e;color:#d1dded}.vk-secondary:hover,.vk-icon:hover{background:#2b3c53}.vk-icon{padding:9px 13px;font-size:20px}.vk-text{border:0;background:none;color:var(--vk-muted);font-size:12px;padding:9px 0;text-decoration:underline;text-underline-offset:4px}.vk-text:hover{color:var(--text)}.danger{color:#f5afba}.vk-book-settings{font-size:12px;color:var(--vk-muted);border-top:1px solid var(--border);margin-top:20px;padding-top:18px}.vk-book-settings summary,.vk-format-help summary{cursor:pointer}.vk-book-settings form{margin-top:18px}.vk-book-settings form button{margin-top:10px}.vk-storage-note{margin-top:26px;padding-top:20px;border-top:1px solid var(--border);font-size:10px;color:var(--vk-muted);line-height:1.9}.vk-storage-note>span{color:var(--gold);font-size:22px}.vk-storage-note button{width:100%;font-size:11px}.vk-current{display:flex;justify-content:space-between;align-items:center;gap:15px;padding:5px 0 22px}.vk-current .eyebrow{font-size:9px}.vk-current h2{font-size:23px;margin:0;letter-spacing:-.6px}.vk-current>span{font-size:11px;flex-shrink:0}.vk-tabs{display:flex;gap:25px;border-bottom:1px solid var(--border);margin-bottom:24px}.vk-tabs button{padding:12px 0 16px;border:0;border-bottom:2px solid transparent;background:none;color:var(--vk-muted);font-weight:600}.vk-tabs button[aria-selected=true]{color:var(--mint);border-color:var(--mint)}.vk-study-settings{display:flex;flex-wrap:wrap;align-items:flex-end;gap:12px;margin-bottom:22px}.vk-study-settings label{flex:1;min-width:140px;margin:0}.vk-study-settings button{padding:12px 18px}.vk-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-bottom:20px}.vk-metrics>div{padding:16px;background:#141e2e;border:1px solid var(--border);border-radius:12px}.vk-metrics span{display:block;color:var(--vk-muted);font-size:10px}.vk-metrics strong{display:block;margin-top:10px;font-size:24px;font-weight:600}.vk-metrics>div:nth-child(3) strong{color:var(--gold)}.vk-arena{padding:26px;border:1px solid #344a47;border-radius:18px;background:radial-gradient(ellipse at top left,#9bf6cf09,transparent 65%),#111a29;min-height:420px}.vk-arena-top{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px}.vk-arena>progress{margin-bottom:24px}.vk-empty{text-align:center;padding:30px 5px}.vk-empty h3{font-size:23px;line-height:1.6;letter-spacing:-.6px;margin:13px 0}.vk-empty p{font-size:13px;color:var(--vk-muted);line-height:1.9}.vk-empty button{margin-top:16px}.vk-empty-crown{font-size:60px;color:var(--gold);display:inline-block;line-height:1;filter:drop-shadow(0 0 25px #f4ce8325)}#question-instruction{font-size:12px;font-weight:500;color:var(--vk-muted);margin:0 0 15px}.vk-prompt{font-size:23px;line-height:1.7;margin:10px 0 25px;white-space:pre-wrap}.vk-options{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.vk-option{background:#19273a;border:1px solid #34455e;padding:18px;border-radius:10px;text-align:left;line-height:1.8;overflow-wrap:anywhere}.vk-option:hover:not(:disabled){border-color:var(--mint);background:#203b37}.vk-option[data-state=wrong]{border-color:#e995a5;color:#ffbfcc}.vk-option[data-state=correct]{border-color:var(--mint);color:var(--mint)}.vk-feedback{min-height:28px;font-size:14px;line-height:1.8;color:#d0daea;margin:22px 0 12px}.vk-feedback[data-state=correct]{color:var(--mint)}.vk-feedback[data-state=wrong]{color:#ffc2ce}.vk-question-footer{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-top:20px}.vk-question-footer>div{gap:20px}.vk-answer-detail{padding:18px;background:#9bf6cf08;border-left:3px solid var(--mint);border-radius:4px 10px 10px 4px;line-height:1.9}.vk-answer-detail strong{font-size:17px;overflow-wrap:anywhere}.vk-answer-detail p{margin-bottom:0;white-space:pre-wrap}.vk-translation-button{background:#f4ce8312;border:1px solid #f4ce8350;border-radius:8px;color:var(--gold);padding:10px 15px;font-weight:600}.vk-translation{padding:18px 20px;background:#f4ce830a;border-left:3px solid var(--gold);border-radius:4px 10px 10px 4px;line-height:2;font-size:15px;white-space:pre-wrap}.vk-original{line-height:1.9;color:#cfdaec;background:#1b2940;padding:15px;border-radius:9px;white-space:pre-wrap}.vk-answer-tray{display:flex;align-items:flex-start;align-content:flex-start;gap:8px;flex-wrap:wrap;min-height:95px;background:#0b1320;border:1px dashed #4f685e;border-radius:12px;padding:15px;margin:15px 0 20px}.vk-answer-tray:empty:after{content:'문장 조각을 여기에 모아보세요';color:#8a9ab1;font-size:12px;padding:12px 0}.vk-token-bank{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}.vk-token{background:#1e3140;border:1px solid #42616b;border-radius:8px;padding:10px 12px;font-size:13px;text-align:left;line-height:1.6;overflow-wrap:anywhere;max-width:100%}.vk-token:hover:not(:disabled){border-color:var(--mint)}.vk-answer-tray .vk-token{background:#234239;border-color:#51816c}.vk-token:disabled{opacity:.25}.vk-footnote{font-size:11px;color:var(--vk-muted);line-height:1.9;padding:10px 0}.vk-panel{padding:24px;border:1px solid var(--border);border-radius:14px;background:#121b2a;margin-bottom:20px}.vk-panel .vk-section-head{margin-bottom:20px}.vk-panel form>label{margin-top:18px}.vk-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-bottom:15px}.vk-entry-list{margin-top:20px}.vk-entry{border-top:1px solid var(--border);padding:18px 0}.vk-entry-top{display:flex;align-items:center;justify-content:space-between;gap:12px}.vk-entry-top .vk-inline{gap:12px}.vk-entry strong{font-size:14px;display:block;margin:14px 0 8px;line-height:1.8;white-space:pre-wrap;overflow-wrap:anywhere}.vk-entry p{line-height:1.9;font-size:13px;white-space:pre-wrap}.vk-entry .vk-muted{font-size:11px}.vk-upload{position:relative;display:flex!important;align-items:center;flex-direction:column;border:1px dashed #536c7c;border-radius:12px;background:#192a3822;padding:28px 12px;margin:20px 0!important;cursor:pointer;text-align:center;gap:10px}.vk-upload>span:first-child{font-size:28px;color:var(--mint)}.vk-upload>span:last-of-type{font-size:11px;color:var(--vk-muted)}.vk-upload input{font-size:11px;max-width:290px;padding:8px}.vk-import-preview{padding:18px;background:#9bf6cf08;border:1px solid #426256;border-radius:10px;margin-top:20px}.vk-import-preview h4{margin:0 0 15px}.vk-preview-row{font-size:12px;line-height:1.9;padding:10px 0;border-top:1px solid var(--border);overflow-wrap:anywhere;white-space:pre-wrap}.vk-format-help{color:var(--vk-muted);font-size:12px;line-height:1.9}.vk-format-help summary{color:var(--text);font-size:14px;font-weight:600}.vk-format-help pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#0c1523;padding:14px;border-radius:8px;font:12px/1.9 inherit}.vk-format-help code{color:#c0ead9;overflow-wrap:anywhere}.vk-alert{background:#462b2e;padding:16px;border:1px solid #bd7c89;border-radius:9px;color:#ffd0d9;line-height:1.8}.vk-app-status{font-size:13px;line-height:1.8;min-height:25px;color:var(--mint)}.vk-app-status[data-error=true],#import-status[data-error=true]{color:#ffc2ce}.vk-main{min-width:0}.vk-app .footer{margin-top:45px}
@media(max-width:1050px){.vk-layout{grid-template-columns:210px minmax(0,1fr);gap:20px}.vk-current{align-items:flex-start;flex-direction:column;gap:8px}.vk-study-settings button{width:100%}.vk-rank{width:230px;flex-shrink:0}.vk-tabs{gap:24px}.vk-arena{padding:22px}.vk-metrics{gap:8px}.vk-metrics>div{padding:13px 10px}}
@media(max-width:760px){.vk-app{max-width:650px!important}.vk-hero{padding:30px 0;gap:20px;align-items:flex-start;flex-direction:column}.vk-hero h1{font-size:29px}.vk-hero p:not(.eyebrow){font-size:13px}.vk-rank{width:100%;grid-template-columns:45px 1fr 110px;padding:15px 18px;gap:15px}.vk-crown{font-size:44px}.vk-rank strong{font-size:21px}.vk-rank progress{grid-column:auto}.vk-layout{grid-template-columns:minmax(0,1fr);gap:28px}.vk-sidebar{padding:18px}.vk-book-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));margin:15px 0;max-height:270px;overflow:auto}.vk-storage-note{margin-top:15px;padding-top:12px;display:flex;align-items:center;flex-wrap:wrap;gap:10px}.vk-storage-note p{flex:1;margin:0}.vk-storage-note button{width:auto}.vk-book-settings{margin-top:15px;padding-top:14px}.vk-current{flex-direction:row}.vk-current h2{font-size:20px}.vk-tabs{justify-content:space-between;gap:12px}.vk-tabs button{font-size:13px}.vk-panel{padding:20px}.vk-app .footer{flex-direction:column;gap:10px}.vk-metrics span{font-size:9px}.vk-metrics strong{font-size:22px}.vk-app .hub-nav{font-size:11px;gap:12px}.vk-form-grid{grid-template-columns:minmax(0,1fr)}.vk-hero .eyebrow{font-size:9px}}
@media(max-width:420px){.vk-app{padding:0 14px}.vk-hero h1{font-size:27px}.vk-rank{grid-template-columns:38px 1fr 85px;gap:10px}.vk-current{flex-direction:column}.vk-metrics{gap:6px}.vk-metrics>div{padding:12px 8px}.vk-arena{padding:18px 15px}.vk-arena-top .vk-muted{font-size:10px}.vk-arena-top .vk-badge{font-size:9px}.vk-prompt{font-size:21px}.vk-options{grid-template-columns:minmax(0,1fr)}.vk-option{padding:13px}.vk-token{font-size:12px;padding:9px 10px}.vk-panel{padding:18px 14px}.vk-section-head{flex-wrap:wrap}.vk-panel .vk-badge{font-size:9px}.vk-inline>.vk-primary{flex-shrink:0}.vk-question-footer{flex-direction:column}.vk-empty h3{font-size:20px}.vk-study-settings label{min-width:110px}.vk-book strong{font-size:12px}}
.vk-app .vk-token{position:relative;cursor:grab;touch-action:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}.vk-app .vk-token:disabled{cursor:default}.vk-app .vk-token.vk-drag-source{opacity:.3}.vk-app .vk-drop-active{outline:2px solid var(--mint);outline-offset:4px;background-color:#9bf6cf0d}.vk-token.vk-drop-before:before,.vk-token.vk-drop-after:after{content:'';position:absolute;top:0;bottom:0;width:3px;border-radius:3px;background:var(--mint);box-shadow:0 0 9px #9bf6cf80;pointer-events:none}.vk-token.vk-drop-before:before{left:-6px}.vk-token.vk-drop-after:after{right:-6px}.vk-drag-ghost{position:fixed;z-index:1000;pointer-events:none;transform:translate(-50%,-50%);border-color:var(--mint);background:#234239;box-shadow:0 12px 30px #0007;opacity:.95;font:13px/1.6 'DM Sans','Noto Sans KR',sans-serif}.vk-dragging,.vk-dragging *{cursor:grabbing!important}
.vk-correct-popup[hidden]{display:none}.vk-correct-popup{position:fixed;z-index:1100;top:24px;right:24px;width:min(390px,calc(100vw - 32px));padding:24px;border:1px solid #ff8998;border-radius:20px;color:#fff5f5;background:radial-gradient(ellipse at top left,#ff6b7a30,transparent 70%),linear-gradient(135deg,#7b2036,#3d1728);box-shadow:0 18px 65px #0008,0 0 35px #ff6b7a20;pointer-events:none;animation:vk-correct-appear .24s ease-out}.vk-correct-icon{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:#ff7b8d;color:#451421;font-size:26px;font-weight:800;float:left;margin:0 12px 14px 0}.vk-correct-eyebrow{font-size:9px;letter-spacing:1.6px;color:#ffc3cc;margin:2px 25px 5px 0}.vk-correct-popup h2{font-size:21px;margin:0 0 18px;line-height:1.5;letter-spacing:-.5px}.vk-correct-english{clear:both;max-height:180px;overflow:auto;font-size:16px;line-height:1.9;overflow-wrap:anywhere;margin:0 0 16px}.vk-correct-close{position:absolute;right:10px;top:8px;width:34px;height:34px;border:0;background:none;border-radius:8px;color:#ffcfda;font-size:25px;pointer-events:auto}.vk-correct-bottom{display:flex;justify-content:space-between;align-items:center;gap:12px;border-top:1px solid #ffb6c333;padding-top:14px;color:#ffd3dc;font-size:12px;font-weight:600}.vk-correct-bottom button{border:1px solid #ffc0cc66;background:#ff9bac18;color:#fff1f5;border-radius:8px;padding:9px 12px;font-size:12px;pointer-events:auto}.vk-correct-popup button:hover{background:#ffabbc33}.vk-correct-popup button:focus-visible{outline:2px solid #fff0f5;outline-offset:2px}@keyframes vk-correct-appear{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:600px){.vk-correct-popup{top:16px;right:16px;padding:20px}.vk-correct-popup h2{font-size:19px}.vk-correct-english{font-size:14px;max-height:140px}}
@media(prefers-reduced-motion:reduce){.vk-app *{scroll-behavior:auto;transition:none}.vk-correct-popup{animation:none}}
.vk-audio-controls{display:flex;justify-content:flex-end;margin:-8px 0 14px}.vk-audio-controls button{font-size:11px;padding:7px 12px}.vk-audio-controls button[aria-pressed=true]{color:var(--mint);border-color:#537f70;background:#9bf6cf0a}
.vk-score-panel{padding:24px;background:linear-gradient(120deg,#1e263e,#112832);border:1px solid #354a60;border-radius:15px;margin:0 0 22px}.vk-score-panel h3{font-size:21px;margin:8px 0 12px}.vk-score-panel>.vk-muted{line-height:1.8;font-size:12px}.vk-score-buttons{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;margin:20px 0 14px}.vk-score-button{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:9px;min-height:76px;border:1px solid #435573;border-radius:10px;background:#121c2d;color:#ebf4ff;cursor:pointer}.vk-score-button:hover{border-color:#9bf6cf;background:#203a3a}.vk-score-button[aria-pressed=true]{border-color:#9bf6cf;background:#9bf6cf19;box-shadow:0 0 18px #9bf6cf0c}.vk-score-button strong{font-size:14px}.vk-score-button span{font-size:9px;color:#a7beca;letter-spacing:1px}.vk-score-note{margin-bottom:0}.vk-score-button:focus-visible{outline:2px solid #9bf6cf;outline-offset:4px}@media(max-width:650px){.vk-score-panel{padding:19px 15px}.vk-score-panel h3{font-size:18px}.vk-score-buttons{grid-template-columns:repeat(2,minmax(0,1fr))}.vk-score-button:first-child{grid-column:1/-1;min-height:60px}.vk-score-button{min-height:68px}}
.vk-example-countdown{background:#151e31;color:#f8fafc;border:1px solid #687b9d;border-radius:20px;padding:30px;max-width:calc(100vw - 36px);width:390px;text-align:center;box-shadow:0 25px 90px #0009}.vk-example-countdown::backdrop{background:#060a16cc;backdrop-filter:blur(5px)}.vk-example-countdown h2{font-size:19px}.vk-example-countdown p{font-size:12px;color:#aabbcd;margin-bottom:22px}.vk-countdown-circle{position:relative;display:grid;place-items:center;width:175px;height:175px;margin:25px auto}.vk-countdown-circle svg{position:absolute;inset:0;width:100%;height:100%;transform:rotate(-90deg)}.vk-countdown-circle circle{fill:none;stroke-width:5}.vk-countdown-track{stroke:#2b4053}.vk-countdown-ring{stroke:#9bf6cf;stroke-linecap:round}.vk-countdown-circle strong{font-size:75px;font-weight:700}
.vk-question-timer{display:flex;align-items:center;justify-content:flex-end;gap:10px;margin:8px 0 18px;color:#c5eadc}.vk-question-timer>span{font-size:12px}.vk-small-clock{width:46px;height:46px;position:relative;display:grid;place-items:center;flex-shrink:0}.vk-small-clock svg{position:absolute;inset:0;width:100%;height:100%;transform:rotate(-90deg)}.vk-small-clock circle{fill:none;stroke-width:3}.vk-small-track{stroke:#344b56}.vk-small-ring{stroke:#9bf6cf;stroke-linecap:round}.vk-small-clock strong{font-size:20px}.vk-question-timer[data-urgent=true]{color:#ffc2ce}.vk-question-timer[data-urgent=true] .vk-small-ring{stroke:#fb7185}.vk-question-timer button{font-size:11px;padding:7px 10px}@media(max-width:420px){.vk-question-timer{gap:7px}.vk-question-timer>span{font-size:10px}.vk-small-clock{width:40px;height:40px}}

.vk-question-timer[data-kind=word] .vk-small-clock{width:86px;height:86px}.vk-question-timer[data-kind=word] .vk-small-clock strong{font-size:40px}.vk-question-timer[data-kind=word]>span{font-size:14px}.vk-question-timer[data-kind=word] .vk-small-ring{filter:drop-shadow(0 0 4px #9bf6cf40)}@media(max-width:420px){.vk-question-timer[data-kind=word] .vk-small-clock{width:72px;height:72px}.vk-question-timer[data-kind=word] .vk-small-clock strong{font-size:34px}.vk-question-timer[data-kind=word]>span{font-size:12px}}

.vk-favorites-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:18px 0;padding:16px;flex-wrap:wrap;border:1px solid #b84b62;border-radius:12px;background:#351b29;color:#ffd5dd}.vk-favorites-bar>span{font-weight:700}.vk-word-heading{display:flex;align-items:center;gap:12px}.vk-word-heading strong{min-width:0;overflow-wrap:anywhere}
.vk-app .vk-favorite,.vk-app #favorites-study{background:#591f32;border:1px solid #f07890;color:#ffe4ea;font-weight:700;box-shadow:0 3px 12px #e344661a;transition:background-color .15s,border-color .15s}.vk-app .vk-favorite:hover,.vk-app #favorites-study:hover:not(:disabled){background:#7a263e;border-color:#ffa3b5;color:#fff}.vk-app .vk-favorite[aria-pressed="true"]{background:#bd2948;border-color:#ff9db1;color:#fff;box-shadow:0 0 0 2px #ff6b8726}.vk-app .vk-favorite[aria-pressed="true"]:hover{background:#d63254}.vk-app .vk-favorite:focus-visible,.vk-app #favorites-study:focus-visible{outline:3px solid #ffb1c1;outline-offset:3px}.vk-app .vk-text.vk-favorite{min-width:40px;min-height:40px;padding:6px 10px;border-radius:9px;font-size:22px;line-height:1;text-decoration:none}.vk-app #favorites-study:disabled{background:#38232d;border-color:#875263;color:#cda5b0;box-shadow:none}#question-favorite{margin:12px 0;padding:13px 20px;font-size:15px}