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6px;}.ls-admin-sub{color:#64748B;font-size:14px;margin-bottom:18px;}.ls-admin-table{width:100%;border-collapse:collapse;font-size:13px;background:#fff;}.ls-admin-table th{background:#F8FAFC;color:#64748B;font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.5px;padding:9px 10px;text-align:left;border-bottom:2px solid #E2E8F0;}.ls-admin-table td{padding:9px 10px;border-bottom:1px solid #F1F5F9;vertical-align:top;}.ls-admin-cur{font-size:11.5px;color:#64748B;max-width:240px;}.ls-pill{display:inline-block;font-size:11px;font-weight:800;border-radius:99px;padding:2px 9px;background:#F1F5F9;color:#64748B;}.ls-pill-on{background:#ECFDF5;color:#0F766E;}.ls-pill-free{background:#FFF8E6;color:#7A5A00;}.ls-admin-act a{font-weight:800;color:#0D9488;text-decoration:none;}html.ls-nojs .ls-card,html.ls-nojs .ls-paywall-card,html.ls-nojs .ls-end,html.ls-nojs .ls-step-card{opacity:1;transform:none;}html.ls-nojs .ls-sticky{position:static;height:auto;}html.ls-nojs .ls-figures{height:auto;}html.ls-nojs .ls-figure{position:static;opacity:1;transform:none;margin-bottom:20px;}@media (prefers-reduced-motion:reduce){.ls-step-card,.ls-card,.ls-paywall-card,.ls-end,.ls-figure{transition:none !important;}.ls-step-card,.ls-card,.ls-paywall-card,.ls-end{opacity:1 !important;transform:none !important;}}.ls-meter{margin:0 auto 14px;max-width:300px;font-size:12.5px;font-weight:800;color:#7A5A00;}.ls-meter i{display:block;height:7px;border-radius:99px;background:#FFE9A8;margin-top:6px;overflow:hidden;}.ls-meter b{display:block;height:100%;background:#E0B429;border-radius:99px;}.ls-paywall-more{font-size:12.5px;font-weight:800;color:#94A3B8;margin-bottom:14px;}.ls-subjgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(158px,1fr));gap:14px;}.ls-subjcard{display:flex;flex-direction:column;align-items:center;text-align:center;gap:4px;padding:22px 14px 18px;border-radius:18px;text-decoration:none;color:inherit;background:#fff;border:2px solid #E7EDF3;border-top:4px solid var(--ls-accent);transition:transform .15s,box-shadow .15s,border-color .15s;}.ls-subjcard:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(15,23,42,.12);}.ls-subjcard-icon{font-size:40px;line-height:1;}.ls-subjcard-name{font-weight:900;font-size:15.5px;color:#1E293B;}.ls-subjcard-meta{font-size:11.5px;font-weight:800;color:#94A3B8;}.ls-crumbs2{font-size:12.5px;font-weight:800;color:#64748B;margin-bottom:8px;}.ls-crumbs2 a{color:var(--ls-accent,#0D9488);text-decoration:none;}.ls-sublabel{font-size:12px;font-weight:900;text-transform:uppercase;letter-spacing:.06em;color:#94A3B8;margin:4px 0 10px;}.ls-card-art{position:absolute;top:14px;left:14px;font-size:20px;line-height:1;}.ls-card{padding-top:42px;border-top:4px solid var(--ls-accent);}.ls-quota{max-width:340px;margin:14px auto 0;font-size:12.5px;font-weight:800;color:#475569;}.ls-quota i{display:block;height:7px;border-radius:99px;background:#E2E8F0;margin-top:6px;overflow:hidden;}.ls-quota b{display:block;height:100%;background:var(--ls-accent,#0D9488);border-radius:99px;}.ls-quota-up{display:inline-block;margin-top:7px;font-size:12px;font-weight:900;color:#B45309;text-decoration:none;}.ls-quota-max{background:#FFF8E6;border:2px solid #FFE9A8;color:#7A5A00;border-radius:99px;padding:6px 16px;display:inline-block;}.ls-emptycard{text-align:center;background:#F8FAFC;border:2px dashed #CBD5E1;border-radius:18px;padding:32px 20px;}.ls-emptycard h3{font-size:18px;font-weight:900;margin:0 0 8px;}.ls-emptycard p{color:#64748B;margin:0 0 16px;}.ls-paywall{padding-top:34px;}.ls-paywall-cut{padding-top:0;}.ls-filters{display:flex;flex-wrap:wrap;align-items:flex-end;gap:12px;margin:0 0 14px;padding:14px 16px;background:#F8FAFC;border:1.5px solid #E2E8F0;border-radius:12px;}.ls-filters label{display:flex;flex-direction:column;gap:5px;font-size:11.5px;font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:#64748B;}.ls-filters select{min-width:160px;min-height:38px;padding:7px 10px;border:1.5px solid #CBD5E1;border-radius:8px;font-size:13.5px;font-weight:700;background:#fff;}.ls-fbtn{min-height:38px;padding:8px 20px;background:#0D9488;color:#fff;border:none;border-radius:8px;font-weight:900;font-size:13.5px;cursor:pointer;}.ls-fclear{align-self:center;font-size:13px;font-weight:800;color:#64748B;text-decoration:none;}.ls-bulk{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;padding:12px 16px;background:#FFF9E8;border:1.5px solid #FFE9A8;border-radius:12px;}.ls-bulk-scope{font-size:13.5px;font-weight:700;color:#7A5A00;}.ls-bulk-acts{display:flex;gap:9px;flex-wrap:wrap;}.ls-bulk-btn{display:inline-block;padding:9px 16px;border-radius:8px;font-size:13px;font-weight:900;text-decoration:none;background:#fff;color:#7A5A00;border:1.5px solid #E0B429;}.ls-bulk-go{background:#16A34A;color:#fff;border-color:#15803D;}.ls-pill-filter{background:#DBEAFE;color:#1E40AF;}.ls-pill-audio{background:#F0FDFA;color:#0F766E;}.ls-admin-empty{padding:24px;text-align:center;color:#64748B;background:#F8FAFC;border-radius:12px;}.ls-classchip{display:inline-block;margin-top:10px;font-size:13px;font-weight:900;background:#F0FDFA;color:#0F766E;border:1.5px solid #99F6E4;border-radius:99px;padding:5px 15px;}.ls-offclass{display:flex;align-items:center;gap:10px;flex-wrap:wrap;max-width:1180px;margin:14px auto 0;padding:12px 16px;background:#FFF9E8;border:1.5px solid #FFE9A8;border-radius:12px;font-size:13.5px;font-weight:700;color:#7A5A00;}.ls-offclass-ico{font-size:17px;}.ls-offclass a{margin-left:auto;font-weight:900;color:#B45309;text-decoration:none;white-space:nowrap;}.ls-ad{margin:28px 0 8px;background:#fff;border:1px solid #E2E8F0;border-left:4px solid var(--c-navy,#0A2540);border-radius:16px;box-shadow:0 2px 10px rgba(15,23,42,.05);}.ls-ad-body{padding:22px 24px}.ls-ad-kicker{display:inline-block;font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;font-weight:900;color:var(--c-navy,#0A2540);background:#EEF2F7;padding:4px 11px;border-radius:999px;}.ls-ad h2{margin:11px 0 6px;font-size:1.3rem;line-height:1.25;font-weight:900;color:var(--c-navy,#0A2540);}.ls-ad p{margin:0;font-size:.92rem;line-height:1.55;color:#475569;max-width:64ch}.ls-ad-stats{display:flex;flex-wrap:wrap;gap:10px 26px;margin:16px 0 18px;padding:14px 0 0;border-top:1px solid #EEF2F7;}.ls-ad-stats div{display:flex;align-items:baseline;gap:6px}.ls-ad-stats b{font-size:1.15rem;font-weight:900;color:var(--c-navy,#0A2540);line-height:1}.ls-ad-stats span{font-size:.8rem;color:#64748B;font-weight:600}.ls-ad-cta{display:flex;flex-wrap:wrap;align-items:center;gap:16px}.ls-ad .ls-btn-main{background:var(--c-navy,#0A2540);color:#fff !important;border:none;padding:11px 22px;border-radius:var(--r-md,14px);font-size:14px;font-weight:800;box-shadow:none;}.ls-ad .ls-btn-main:hover{background:var(--c-navy-mid,#0D3D6B);transform:translateY(-2px);box-shadow:0 6px 20px rgba(10,37,64,.28);}.ls-ad-alt{font-size:.88rem;font-weight:700;color:var(--c-navy,#0A2540);text-decoration:underline;text-underline-offset:3px;}.ls-ad-alt:hover{color:var(--c-navy-mid,#0D3D6B)}.ls-ad-note{margin-top:14px !important;font-size:.82rem;color:#64748B}.ls-ad-note a{color:var(--c-navy,#0A2540);font-weight:700;text-decoration:underline}@media (max-width:720px){.ls-ad-body{padding:18px 18px}.ls-ad h2{font-size:1.15rem}.ls-ad-stats{gap:8px 18px}.ls-ad-cta{gap:12px}.ls-ad .ls-btn-main{width:100%;text-align:center}}.cr-box{max-width:620px;margin:26px auto 0;padding:18px 20px;background:#fff;border:1px solid #E2E8F0;border-radius:14px;text-align:center;}.cr-title{font-size:15px;font-weight:800;color:#0A2540;margin-bottom:10px;}.cr-stars{display:flex;justify-content:center;gap:6px;flex-wrap:wrap;}.cr-star{border:1px solid #E2E8F0;background:#F8FAFC;cursor:pointer;font-size:26px;line-height:1;color:#CBD5E1;border-radius:10px;padding:6px 12px;transition:color .12s,border-color .12s,transform .12s;}@media (max-width:480px){.cr-box{padding:14px 12px;}.cr-stars{gap:4px;}.cr-star{font-size:20px;padding:5px 8px;}}.cr-star:hover,.cr-star:focus-visible{color:#F59E0B;border-color:#F59E0B;transform:translateY(-2px);}.cr-stars:hover .cr-star{color:#F59E0B;border-color:#FDE68A;}.cr-stars .cr-star:hover ~ .cr-star{color:#CBD5E1;border-color:#E2E8F0;}.cr-scale{display:flex;justify-content:space-between;max-width:300px;margin:8px auto 0;font-size:11.5px;color:#94A3B8;font-weight:600;}.cr-summary{margin-top:10px;font-size:12.5px;color:#64748B;font-weight:700;}.qres-rating{margin-top:18px;}.ls-taster{background:linear-gradient(180deg,#F0FDF4,#fff);border:2px solid #86EFAC;border-radius:22px;padding:26px 22px;margin:0 0 30px;}.ls-taster-head{text-align:center;margin-bottom:20px}.ls-taster-head h2{font-size:clamp(1.15rem,3vw,1.5rem);font-weight:900;color:#14532D;margin:0 0 8px}.ls-taster-head p{color:#3F6212;font-size:14.5px;line-height:1.55;margin:0;max-width:520px;margin-left:auto;margin-right:auto}.ls-taster-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px}.ls-taster-card{display:flex;flex-direction:column;background:#fff;border:2px solid #BBF7D0;border-radius:18px;padding:18px 16px 15px;text-decoration:none;transition:transform .15s,box-shadow .15s,border-color .15s;}.ls-taster-card:hover{transform:translateY(-3px);border-color:#22C55E;box-shadow:0 12px 24px rgba(22,163,74,.18)}.ls-taster-icon{font-size:32px;line-height:1;margin-bottom:8px}.ls-taster-kicker{font-size:11px;font-weight:900;text-transform:uppercase;letter-spacing:.07em;color:#16A34A;margin-bottom:6px}.ls-taster-title{font-size:15.5px;font-weight:900;color:#14532D;line-height:1.4;margin-bottom:6px}.ls-taster-meta{font-size:12px;font-weight:700;color:#6B7280;margin-bottom:12px}.ls-taster-cta{margin-top:auto;align-self:flex-start;background:#16A34A;color:#fff;font-weight:900;font-size:13px;border-radius:99px;padding:8px 16px;box-shadow:0 3px 0 #14532D}.ls-pricing{margin:34px 0 0;background:linear-gradient(135deg,#0F172A,#1E293B);border-radius:24px;padding:40px 24px;color:#fff}.ls-pricing-inner{max-width:720px;margin:0 auto;text-align:center}.ls-pricing-kicker{display:inline-block;font-size:11.5px;font-weight:900;text-transform:uppercase;letter-spacing:.08em;color:#FDE68A;margin-bottom:10px}.ls-pricing h2{font-size:clamp(1.3rem,3.4vw,1.9rem);font-weight:900;margin:0 0 8px;color:#fff}.ls-pricing p{color:#CBD5E1;font-size:15px;line-height:1.6;margin:0 0 26px}.ls-pricing-plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:26px}.ls-plan{position:relative;background:rgba(255,255,255,.07);border:1.5px solid rgba(255,255,255,.16);border-radius:16px;padding:20px 14px;display:flex;flex-direction:column;gap:4px}.ls-plan-best{border-color:#FDE68A;background:rgba(253,230,138,.12)}.ls-plan-tag{position:absolute;top:-10px;left:50%;transform:translateX(-50%);background:#FDE68A;color:#78350F;font-size:10px;font-weight:900;text-transform:uppercase;letter-spacing:.06em;border-radius:99px;padding:3px 10px;white-space:nowrap}.ls-plan-name{font-size:12.5px;font-weight:800;color:#94A3B8;text-transform:uppercase;letter-spacing:.05em}.ls-plan-price{font-size:1.5rem;font-weight:900;color:#fff;line-height:1.2}.ls-plan-note{font-size:12.5px;color:#94A3B8;font-weight:600}.ls-pricing-cta{display:flex;flex-direction:column;align-items:center;gap:12px}.ls-pricing-alt{color:#CBD5E1;font-size:13.5px;font-weight:700;text-decoration:underline}.ls-pricing-alt:hover{color:#fff}@media(max-width:600px){.ls-taster{padding:20px 15px;border-radius:18px}.ls-pricing{padding:30px 16px;border-radius:20px}}.ls-end-perks{list-style:none;margin:0 auto 20px;padding:0;max-width:420px;text-align:left;display:grid;gap:9px;}.ls-end-perks li{font-size:14px;line-height:1.5;color:#374151;font-weight:600;background:#F8FAFC;border:1px solid #E2E8F0;border-radius:12px;padding:10px 13px;}.ls-end-note{margin:16px 0 0;font-size:13px;color:#64748B;line-height:1.55;}.ls-end-note a{color:#0D6E63;font-weight:800;text-decoration:underline;}.ls-read-card{display:flex;align-items:center;gap:14px;flex-wrap:wrap;max-width:640px;margin:22px auto 18px;padding:16px 20px;background:#fff;border:2px solid #CCFBF1;border-radius:16px;box-shadow:0 2px 10px rgba(15,42,61,.05);}.ls-btn-read{flex:0 0 auto;background:#0D9488;border-color:#0F766E;color:#fff;box-shadow:0 4px 0 #0F766E;font-size:15px;padding:11px 22px;}.ls-btn-read:hover{background:#0F766E;}.ls-btn-read:active{transform:translateY(3px);box-shadow:0 1px 0 #0F766E;}.ls-btn-read:focus-visible{outline:3px solid #0D9488;outline-offset:3px;}.ls-read-hint{flex:1 1 220px;min-width:0;font-size:13.5px;line-height:1.5;color:#64748B;}.ls-read-card.is-done{background:#F0FDF4;border-color:#BBF7D0;}.ls-read-tick{font-size:22px;line-height:1;flex:0 0 auto;}.ls-read-copy{display:flex;flex-direction:column;gap:2px;min-width:0;flex:1 1 auto;}.ls-read-copy .ls-read-hint{flex:0 1 auto;}.ls-read-copy b{font-size:15px;font-weight:900;color:#166534;}.ls-read-note{max-width:640px;margin:22px auto 18px;padding:12px 18px;background:#FEF3C7;border:2px solid #FDE68A;border-radius:14px;font-size:13.5px;font-weight:700;color:#92400E;text-align:center;}@media (max-width:560px){.ls-read-card{flex-direction:column;align-items:stretch;text-align:center;gap:10px;padding:14px 16px;}.ls-btn-read{width:100%;}.ls-read-hint{flex:1 1 auto;}.ls-read-card.is-done{flex-direction:row;text-align:left;align-items:center;}}.ls-related{max-width:760px;margin:36px auto 0;padding:26px 22px 20px;background:#fff;border:1.5px solid #E2E8F0;border-radius:18px;}.ls-related h2{font-size:1.3rem;font-weight:900;color:#152A3A;margin:0 0 6px;}.ls-related h3{font-size:.8rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:#64748B;margin:16px 0 8px;}.ls-rel-list{list-style:none;margin:0;padding:0;display:grid;gap:6px;}.ls-rel-list a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:12px;background:#F8FAFC;border:1px solid #EEF2F7;color:#152A3A;text-decoration:none;font-weight:700;font-size:14.5px;}.ls-rel-list a:hover{border-color:#0D9488;background:#F0FDFA;color:#0F766E;}.ls-rel-class{flex:none;font-size:11.5px;font-weight:800;color:#0F766E;background:#CCFBF1;border-radius:999px;padding:3px 9px;}.ls-rel-title{flex:1;min-width:0;}.ls-rel-free{flex:none;font-size:11px;font-weight:800;color:#92400E;background:#FEF3C7;border-radius:999px;padding:3px 8px;}.ls-rel-all{margin:16px 0 0;font-size:13.5px;color:#64748B;}.ls-rel-all a{color:#0D9488;font-weight:800;}@media (max-width:600px){.ls-related{margin:26px 12px 0;padding:20px 14px 16px;}}.ls-outline{max-width:760px;margin:0 auto 32px;padding:0 22px;}.ls-outline h2{font-size:1.1rem;font-weight:800;margin:26px 0 10px;color:var(--ls-ink,#0A2540);}.ls-outline-lead{font-size:1rem;line-height:1.7;color:var(--ls-ink-soft,#475569);margin:0;}.ls-outline-quote{margin:0;padding:14px 18px;border-left:3px solid #0D9488;background:rgba(13,148,136,.07);border-radius:0 10px 10px 0;font-size:.98rem;line-height:1.65;color:var(--ls-ink-soft,#475569);}.ls-outline-parts{margin:0;padding-left:22px;}.ls-outline-parts li{font-size:.97rem;line-height:1.55;margin:7px 0;color:var(--ls-ink-soft,#475569);font-weight:600;}.ls-practice{max-width:760px;margin:36px auto 0;padding:26px 22px 22px;background:linear-gradient(160deg,#F0FDFA 0%,#fff 60%);border:1.5px solid #99F6E4;border-radius:18px;}.ls-practice h2{font-size:1.3rem;font-weight:900;color:#152A3A;margin:0 0 6px;}.ls-prac-lead{margin:0 0 16px;color:#475569;font-size:.95rem;line-height:1.55;}.ls-prac-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px;}.ls-prac-col{background:#fff;border:1px solid #E2E8F0;border-radius:14px;padding:14px 16px;}.ls-prac-col h3{font-size:.95rem;font-weight:900;color:#0F172A;margin:0 0 6px;line-height:1.3;}.ls-prac-col p{font-size:.83rem;line-height:1.5;color:#64748B;margin:0 0 10px;}.ls-prac-col ul{list-style:none;margin:0;padding:0;display:grid;gap:6px;}.ls-prac-col li{font-size:.88rem;line-height:1.35;}.ls-prac-col a{color:#0F766E;font-weight:800;text-decoration:none;}.ls-prac-col a:hover{text-decoration:underline;}
.fx-confetti{position:absolute;inset:0;overflow:hidden;pointer-events:none;z-index:30;}.fx-confetti i{position:absolute;top:-12px;width:9px;height:14px;border-radius:2px;animation-name:fxFall;animation-timing-function:linear;animation-fill-mode:both;}@keyframes fxFall{0%{transform:translateY(-10px) rotate(0deg);opacity:1;}100%{transform:translateY(320px) rotate(540deg);opacity:0;}}@media (prefers-reduced-motion:reduce){.fx-confetti{display:none;}}
.ls-activity{margin-top:22px;padding:16px 18px;background:#F8FAFC;border:1px solid #E2E8F0;border-left:4px solid #0D9488;border-radius:12px;}.ls-activity.is-done{background:#F0FDF4;border-color:#BBF7D0;border-left-color:#16A34A;}.ls-activity-q{font-size:16px;font-weight:800;color:#0F766E;line-height:1.5;margin-bottom:12px;}.ls-activity-opts{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;}.ls-opt{min-height:48px;padding:11px 14px;background:#fff;border:2px solid #CBD5E1;border-radius:10px;font-family:inherit;font-size:15.5px;font-weight:700;color:#1E293B;line-height:1.4;text-align:left;cursor:pointer;transition:transform .12s,border-color .15s,background .15s;}.ls-opt:hover{border-color:#0D9488;}.ls-opt:active{transform:translateY(1px);}.ls-opt.is-right{background:#16A34A;border-color:#15803D;color:#fff;}.ls-opt.is-wrong{background:#FEF2F2;border-color:#E11D48;animation:lsShake .35s;}@keyframes lsShake{0%,100%{transform:translateX(0);}25%{transform:translateX(-6px);}75%{transform:translateX(6px);}}.ls-activity-say{margin-top:11px;font-size:14.5px;font-weight:700;color:#0F766E;min-height:22px;line-height:1.5;}@media (prefers-reduced-motion:reduce){.ls-opt,.ls-opt.is-wrong{transition:none !important;animation:none !important;}}.ls-worked{margin-top:22px;padding:18px 18px 16px;background:#FFFBEB;border:1px solid #FDE68A;border-radius:14px;}.ls-worked-head{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:900;letter-spacing:.04em;text-transform:uppercase;color:#92400E;margin-bottom:10px;}.ls-worked-ico{font-size:17px;}.ls-worked-problem{margin:0 0 14px;padding:11px 13px;background:#fff;border:1px solid #FDE68A;border-radius:10px;font-size:16px;font-weight:800;color:#1E293B;line-height:1.5;}.ls-worked-steps{margin:0;padding:0 0 0 4px;list-style:none;counter-reset:lsw;}.ls-worked-step{counter-increment:lsw;position:relative;padding:0 0 14px 34px;margin:0;border-left:2px solid #FCD34D;}.ls-worked-step:last-child{border-left-color:transparent;padding-bottom:4px;}.ls-worked-step::before{content:counter(lsw);position:absolute;left:-13px;top:0;width:24px;height:24px;border-radius:50%;background:#F59E0B;color:#fff;font-size:12.5px;font-weight:900;display:grid;place-items:center;}.ls-worked-do{font-size:15.5px;font-weight:800;color:#1E293B;line-height:1.55;}.ls-worked-show{margin:8px 0 2px;padding:9px 13px;background:#fff;border:2px solid #FCD34D;border-radius:9px;font-size:19px;font-weight:900;color:#0F172A;line-height:1.45;font-variant-numeric:tabular-nums;letter-spacing:.01em;white-space:pre-line;overflow-x:auto;}.ls-junior .ls-worked-show{font-size:23px;padding:11px 15px;}.ls-worked-why{margin-top:3px;font-size:14px;color:#78716C;line-height:1.6;}.ls-worked-answer{margin:12px 0 0;padding:10px 13px;background:#ECFDF5;border:1px solid #A7F3D0;border-radius:10px;font-size:15.5px;color:#065F46;}.ls-worked-controls{display:flex;align-items:center;gap:12px;margin-top:12px;}.ls-worked-next{min-height:44px;padding:10px 18px;background:#92400E;color:#fff;border:0;border-radius:10px;font-family:inherit;font-size:15px;font-weight:800;cursor:pointer;}.ls-worked-next:hover{background:#78350F;}.ls-worked-count{font-size:13px;font-weight:800;color:#A16207;}.ls-try{margin-top:16px;padding:15px 16px;background:#fff;border:2px solid #0D9488;border-radius:12px;}.ls-try.is-right{border-color:#16A34A;background:#F0FDF4;}.ls-try.is-wrong{animation:lsShake .35s;}.ls-try-head{font-size:13px;font-weight:900;letter-spacing:.04em;text-transform:uppercase;color:#0F766E;margin-bottom:9px;}.ls-try-problem{margin:0 0 12px;font-size:16px;font-weight:800;color:#1E293B;line-height:1.5;}.ls-try-form{display:flex;gap:9px;flex-wrap:wrap;}.ls-try-input{flex:1 1 180px;min-height:46px;padding:10px 13px;border:2px solid #CBD5E1;border-radius:10px;font-family:inherit;font-size:16px;font-weight:700;color:#1E293B;}.ls-try-input:focus{outline:0;border-color:#0D9488;}.ls-try-input:disabled{background:#F0FDF4;border-color:#16A34A;}.ls-try-check{min-height:46px;padding:10px 20px;background:#0D9488;color:#fff;border:0;border-radius:10px;font-family:inherit;font-size:15px;font-weight:800;cursor:pointer;}.ls-try-check:hover{background:#0F766E;}.ls-try-check:disabled{background:#16A34A;cursor:default;}.ls-try-say{margin-top:10px;font-size:14.5px;font-weight:700;color:#0F766E;min-height:21px;line-height:1.5;}.ls-try-reveal{margin-top:9px;font-size:14.5px;color:#475569;}.ls-try-reveal summary{cursor:pointer;font-weight:800;color:#0F766E;}.ls-try-reveal p{margin:7px 0 0;font-weight:800;color:#065F46;}@media (max-width:600px){.ls-worked{padding:15px 14px 14px;}.ls-worked-step{padding-left:29px;}.ls-try-form{flex-direction:column;}.ls-try-check{width:100%;}}@media (prefers-reduced-motion:reduce){.ls-try.is-wrong{animation:none !important;}}.ls-worked--young .ls-worked-show{margin:0 0 8px;font-size:24px;padding:13px 16px;text-align:center;border-width:3px;border-radius:12px;}.ls-worked--young .ls-worked-line{display:flex;align-items:flex-start;gap:10px;}.ls-worked--young .ls-worked-do{font-size:17px;flex:1;}.ls-worked--young .ls-worked-why{margin-top:6px;padding:7px 10px;font-size:14.5px;background:#FFF7ED;border-radius:8px;color:#7C2D12;}.ls-worked--young .ls-worked-step{padding-bottom:18px;}.ls-worked--young .ls-worked-head span:last-child{font-size:14px;}.ls-worked--young .ls-worked-next{min-height:52px;font-size:16.5px;}.ls-worked-line{display:flex;align-items:flex-start;gap:10px;}.ls-worked-line .ls-worked-do{flex:1;}.ls-worked-say{flex:0 0 auto;min-width:40px;min-height:40px;padding:0 8px;background:#fff;border:2px solid #FCD34D;border-radius:10px;font-size:18px;cursor:pointer;line-height:1;}.ls-worked-say:hover{background:#FFFBEB;}.ls-try-opts{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:10px;}.ls-try-opt{min-height:56px;padding:12px 14px;background:#fff;border:3px solid #CBD5E1;border-radius:14px;font-family:inherit;font-size:20px;font-weight:900;color:#1E293B;cursor:pointer;transition:transform .12s,border-color .15s,background .15s;}.ls-try-opt:hover{border-color:#0D9488;}.ls-try-opt.is-right{background:#16A34A;border-color:#15803D;color:#fff;}.ls-try-opt.is-wrong{background:#FEF2F2;border-color:#E11D48;animation:lsShake .35s;}.ls-try-opt:disabled{cursor:default;}.ls-junior .ls-worked--young .ls-worked-show{font-size:28px;}.ls-junior .ls-worked--young .ls-worked-do{font-size:19px;}.ls-junior .ls-try-opt{min-height:64px;font-size:23px;}