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480px){._mainContainer_yw3sv_43{padding:var(--spacing-xs)}._exerciseSection_yw3sv_81,._chatbotSection_yw3sv_185,._workSpaceCard_yw3sv_347{padding:var(--spacing-sm)}._sectionTitle_yw3sv_857{font-size:1rem}._message_yw3sv_893{max-width:90%;font-size:.9rem}._title_yw3sv_29{font-size:1.25rem}._hintModal_yw3sv_711{padding:var(--spacing-lg);width:95%}}._bubbleRow_yw3sv_1493{display:flex;align-items:flex-end;gap:.7rem}._bubbleRow_yw3sv_1493._user_yw3sv_1505{flex-direction:row-reverse}._avatar_yw3sv_921{width:2rem;height:2rem;border-radius:50%;background:var(--accent-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem;box-shadow:0 2px 8px #4b5aef22;flex-shrink:0}._avatar_yw3sv_921._ia_yw3sv_1543{background:var(--accent-secondary)}._bubble_yw3sv_1493{max-width:80%;padding:.8rem 1.1rem;border-radius:1.2rem;font-size:1rem;line-height:1.5;animation:_fadeIn_yw3sv_1 .3s 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_popIn_71pvv_1{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}._confirmOverlay_71pvv_412{position:fixed;top:0;left:0;right:0;bottom:0;background:#1e293b73;z-index:2000;display:flex;align-items:center;justify-content:center;animation:_fadeIn_71pvv_1 .2s;pointer-events:auto}._confirmModal_71pvv_458{background:#fff;border-radius:1.2rem;box-shadow:0 8px 32px #4b5aef26;min-width:340px;max-width:90vw;padding:2.2rem 2rem 1.5rem;display:flex;flex-direction:column;align-items:center;animation:_popIn_71pvv_1 .2s}._confirmTitle_71pvv_471{font-size:1.15rem;font-weight:600;margin-bottom:1.2rem;color:var(--text-primary);text-align:center}._confirmActions_71pvv_479{display:flex;gap:1.2rem;margin-top:1.5rem}._confirmBtn_71pvv_485{padding:.7rem 1.5rem;border-radius:.7rem;border:none;font-size:1rem;font-weight:500;cursor:pointer;transition:background 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#0000001a;transform:translateY(-2px);border-color:#4b5aef}._cardHeader_71pvv_583{display:flex;align-items:center;gap:.75rem;margin-bottom:1rem}._conceptIcon_71pvv_590{width:2.5rem;height:2.5rem;background:#f3e8ff;border-radius:.5rem;display:flex;align-items:center;justify-content:center;color:#7c3aed;font-size:1.2rem}._conceptName_71pvv_602{font-weight:600;color:#7c3aed;font-size:.95rem}._exerciseTitle_71pvv_608{font-size:1.1rem;font-weight:600;color:#1e293b;margin-bottom:.75rem;line-height:1.3}._exercisePreview_71pvv_616{color:#64748b;font-size:.9rem;line-height:1.4;margin-bottom:1rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}._exerciseActions_71pvv_627{display:flex;gap:.5rem;margin-top:1rem}._previewButton_71pvv_633{background:none;border:1px solid #4B5AEF;color:#4b5aef;border-radius:.5rem;padding:.75rem;font-size:1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s 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