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36px}.exercise-meta{color:var(--muted);flex-wrap:wrap;justify-content:space-between;gap:5px;margin-bottom:18px;font-size:12px;display:flex}.exercise-meta>span:first-child{color:var(--green-ink);font-weight:750}.exercise-main h1{margin-bottom:22px;font-size:24px;line-height:1.5}.exercise-main h1:focus{outline:none}.dialogue{background:#f0faff;border:2px solid #cbe8f5;border-radius:20px;align-items:flex-start;gap:12px;margin:0 0 24px;padding:16px 14px;display:flex}.guest-avatar{color:#09698f;background:#b9e9ff;border-radius:14px;flex-shrink:0;justify-content:center;align-items:center;width:40px;height:44px;display:flex}.dialogue>div:last-child{min-width:0}.dialogue p[lang=en]{margin:4px 0 7px;font-size:18px;font-weight:650;line-height:1.55}.dialogue .small-text{font-size:12px}.choice-list{gap:15px;display:grid}.choice{text-align:left;background:#fff;border:2px solid #dbe3e6;border-radius:17px;align-items:center;gap:12px;width:100%;min-height:66px;padding:14px 12px;font-size:17px;line-height:1.5;transition:background .15s,transform .15s,border-color .15s;display:flex;box-shadow:0 4px #dbe3e6}.choice>span[lang=en]{overflow-wrap:anywhere;min-width:0}.option-number{width:26px;height:28px;color:var(--muted);border:2px solid #dfe6e8;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;font-size:12px;font-weight:750;display:flex}.choice.selected,.word.selected,.pair.selected{color:#07577d;background:#e7f6ff;border-color:#1cb0f6;box-shadow:0 4px #1199da}.choice.selected .option-number{color:#07577d;border-color:#61c8f7}.choice:active:not(:disabled),.word:active:not(:disabled),.pair:active:not(:disabled){transform:translateY(3px)}.staff-caption{color:var(--muted);align-items:center;gap:8px;margin-top:24px;font-size:12px;display:flex}.staff-caption .hotel-art{flex-shrink:0;width:52px}.lesson-footer{width:100%;max-width:var(--phone-width);overscroll-behavior:contain;border:2px solid var(--line);z-index:20;background:#fff;border-bottom:0;border-radius:22px 22px 0 0;max-height:55dvh;position:fixed;bottom:0;left:50%;overflow-y:auto;transform:translate(-50%)}.footer-inner{padding:18px 20px calc(20px + env(safe-area-inset-bottom));gap:14px;display:grid}.footer-inner>.primary{width:100%}.footer-inner>p{font-size:12px;line-height:1.65}.feedback.correct{background:#e5facf;border-color:#b1df87}.feedback.incorrect{background:#fff0ef;border-color:#ffbdb7}.feedback strong{color:var(--green-ink);font-size:21px}.feedback.incorrect strong{color:var(--red-ink)}.feedback p{margin-top:6px;font-size:14px;line-height:1.65}.feedback p[lang=en]{font-size:17px;font-weight:700}.feedback .small-text{color:#405d32;font-size:12px}.feedback.incorrect .small-text{color:#80504b}.feedback.incorrect .primary{background:var(--coral);color:#3f0b12;box-shadow:0 5px #d52e3a}.feedback.incorrect .primary:active{box-shadow:0 1px #d52e3a}.sentence{margin:12px 0 28px;font-size:22px;line-height:1.9}.blank{text-align:center;min-width:68px;color:var(--green-ink);overflow-wrap:anywhere;border-bottom:3px solid #58cc02;max-width:100%;padding:0 5px;display:inline-block}.hint{color:var(--muted);margin-bottom:20px;font-size:14px}.word-bank{flex-wrap:wrap;justify-content:center;gap:10px;margin:22px 0;display:flex}.word{overflow-wrap:anywhere;background:#fff;border:2px solid #dce3e5;border-radius:13px;max-width:100%;min-height:46px;padding:8px 13px;font-size:17px;line-height:1.5;box-shadow:0 3px #dce3e5}.word.used{color:#0000;box-shadow:none;background:#e9eef0;border-color:#e9eef0}.answer-line{border-block:2px solid var(--line);flex-wrap:wrap;align-content:flex-start;align-items:center;gap:10px;min-height:120px;margin-bottom:24px;padding:16px 0;display:flex}.answer-line>.muted{font-size:14px}.input-label{margin-bottom:10px;font-size:14px;font-weight:800;display:block}textarea{resize:vertical;min-height:145px;font-size:18px;line-height:1.6}.exercise-main textarea+.small-text{margin-top:12px}.pairs{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;display:grid}.pairs>div{grid-auto-rows:1fr;gap:14px;display:grid}.pair{text-align:left;overflow-wrap:anywhere;background:#fff;border:2px solid #dce3e5;border-radius:15px;justify-content:space-between;align-items:center;gap:6px;width:100%;min-width:0;min-height:76px;padding:12px 9px;font-size:16px;line-height:1.5;display:flex;box-shadow:0 4px #dce3e5}.pair span[lang=en]{min-width:0}.pair.paired{color:var(--green-ink);background:#f0fce5;border-color:#a8d77f;box-shadow:0 4px #a8d77f}.pair-index{min-width:20px;height:22px;color:var(--green-ink);background:#c7ecab;border-radius:7px;justify-content:center;align-items:center;font-size:12px;font-weight:850;display:flex}.pairs+.small-text{margin-top:20px}.practice-tag{color:#775800;background:#fff6d0;border-radius:12px;margin-bottom:20px;padding:10px 12px;font-size:12px}.lesson-warning{margin:0 16px 10px}.modal{border:2px solid var(--line);width:410px;max-width:calc(100% - 32px);max-height:85dvh;color:var(--ink);background:#fff;border-radius:24px;margin:auto;padding:24px;position:fixed;overflow:auto;box-shadow:0 12px #163a3020}.modal::backdrop{background:#203b3d80}.modal h2{margin-bottom:14px;font-size:22px}.modal p{margin-top:10px;font-size:14px}.modal p.small-text{font-size:12px}.modal-actions{gap:16px;margin-top:24px;display:grid}.completion{text-align:center;padding:calc(32px + env(safe-area-inset-top)) 24px calc(32px + env(safe-area-inset-bottom));background:#fefff9;flex-direction:column;justify-content:center;align-items:center;display:flex}.completion .hotel-art{width:210px;animation:.7s ease-out celebrate}.completion .eyebrow{color:var(--green-ink);margin-top:16px;font-size:14px;font-weight:850}.completion h1{margin:10px 0 14px;font-size:26px}.completion>p{font-size:14px}.completion>p.muted{font-size:13px}.completion-stats{grid-template-columns:1fr 1fr;gap:14px;width:100%;margin:26px 0;display:grid}.completion-stats>div{background:#fff4b9;border:2px solid #ebd063;border-radius:18px;flex-direction:column;gap:8px;padding:18px 8px;display:flex}.completion-stats>div:nth-child(2){background:#eafbdf;border-color:#aadf7c}.completion-stats strong{color:#735500;font-size:30px}.completion-stats>div:nth-child(2) strong{color:var(--green-ink)}.completion-stats span{font-size:12px;font-weight:750}.completion .primary,.completion .secondary{width:100%;margin-top:20px}.completion .warning{margin-top:16px}.empty-page,.loading{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:22px;padding:32px 24px;display:flex}.loading{color:var(--muted);font-size:16px}@keyframes celebrate{0%{transform:translateY(12px)scale(.9)}60%{transform:translateY(-8px)rotate(-5deg)}to{transform:none}}@media (max-width:360px){.top-bar{gap:6px;padding-inline:12px}.mobile-brand{gap:5px;font-size:14px}.top-stats{gap:8px}.top-stats>span{gap:3px;font-size:14px}.top-stats svg{width:19px}.path-main{padding-inline:14px}.department-banner{padding:18px 14px}.department-banner h1{gap:6px}.department-banner h1 span{font-size:14px}.department-symbol{width:42px;height:52px}.department-symbol svg{width:30px}.stop-1 .node-row{transform:translate(-46px)}.stop-3 .node-row{transform:translate(46px)}.path-companion{width:94px;top:220px;right:0}.path-companion .hotel-art{width:94px}.path-companion>span{padding-inline:2px;font-size:12px}.node-copy{max-width:176px}.exercise-main{padding-inline:16px}.exercise-main h1{font-size:22px}.choice{gap:9px;padding-inline:10px;font-size:16px}.pairs{gap:10px}.pair{padding-inline:8px}.record-stats strong{font-size:20px}.history-list article{flex-wrap:wrap}.history-list article>span:first-child{min-width:130px}.achievement-grid{gap:10px}.achievement-grid article{padding:16px 10px}}@media (min-width:481px){.app-shell,.lesson-page,.completion,.empty-page,.loading{box-shadow:0 0 0 1px #dfe6d9,0 12px 60px #3653200d}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}