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4)}.sm\:text-2xl{font-size:var(--text-2xl);line-height:var(--tw-leading,var(--text-2xl--line-height))}.sm\:text-3xl{font-size:var(--text-3xl);line-height:var(--tw-leading,var(--text-3xl--line-height))}.sm\:text-4xl{font-size:var(--text-4xl);line-height:var(--tw-leading,var(--text-4xl--line-height))}.sm\:text-5xl{font-size:var(--text-5xl);line-height:var(--tw-leading,var(--text-5xl--line-height))}.sm\:text-8xl{font-size:var(--text-8xl);line-height:var(--tw-leading,var(--text-8xl--line-height))}.sm\:text-base{font-size:var(--text-base);line-height:var(--tw-leading,var(--text-base--line-height))}.sm\:text-lg{font-size:var(--text-lg);line-height:var(--tw-leading,var(--text-lg--line-height))}.sm\:text-sm{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}.sm\:text-xl{font-size:var(--text-xl);line-height:var(--tw-leading,var(--text-xl--line-height))}.sm\:text-xs{font-size:var(--text-xs);line-height:var(--tw-leading,var(--text-xs--line-height))}}@media (min-width:48rem){.md\:h-12{height:calc(var(--spacing) * 12)}.md\:h-16{height:calc(var(--spacing) * 16)}.md\:w-12{width:calc(var(--spacing) * 12)}.md\:w-14{width:calc(var(--spacing) * 14)}.md\:w-28{width:calc(var(--spacing) * 28)}.md\:p-4{padding:calc(var(--spacing) * 4)}.md\:p-6{padding:calc(var(--spacing) * 6)}.md\:text-2xl{font-size:var(--text-2xl);line-height:var(--tw-leading,var(--text-2xl--line-height))}.md\:text-lg{font-size:var(--text-lg);line-height:var(--tw-leading,var(--text-lg--line-height))}.md\:text-sm{font-size:var(--text-sm);line-height:var(--tw-leading,var(--text-sm--line-height))}.md\:text-xl{font-size:var(--text-xl);line-height:var(--tw-leading,var(--text-xl--line-height))}}@media (min-width:64rem){.lg\:w-1\/2{width:50%}.lg\:flex-row{flex-direction:row}}}@font-face{font-family:Comic Neue;src:url(/fonts/comic-neue-400.woff2)format("woff2");font-style:normal;font-weight:400;font-display:swap}@font-face{font-family:Comic 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var(--line);box-shadow:var(--shadow);background:#fffffff5}.hero-card{isolation:isolate;background:radial-gradient(circle at 8% 18%,#ffe07042 0 11rem,#0000 11.1rem),radial-gradient(circle at 92% 15%,#ffcbdb40 0 12rem,#0000 12.1rem),linear-gradient(145deg,#fffdf7,#f8fffc);border-radius:42px;grid-template-columns:minmax(0,1.08fr) minmax(420px,.92fr);align-items:center;gap:18px;min-height:610px;padding:50px 34px 36px 54px;display:grid;position:relative;overflow:hidden}.hero-card:before{content:"";z-index:-1;background:#e9f9f2;border-radius:50%;width:330px;height:330px;position:absolute;bottom:-190px;left:-155px}.hero-content{z-index:2;text-align:left;padding:15px 0;position:relative}.eyebrow{color:#d94361;background:#fdecef;border:2px solid #ef7890;border-radius:999px;margin:0 0 24px;padding:10px 20px;font-weight:900}.hero-content .eyebrow{display:inline-flex}.hero-card h1{color:#111827;letter-spacing:-3px;margin:0;font-size:clamp(3.15rem,5.3vw,5.35rem);line-height:.98}.hero-copy{color:#4b5563;max-width:620px;margin:24px 0 20px;font-size:clamp(1.08rem,1.65vw,1.32rem);font-weight:800;line-height:1.5}.hero-offer{gap:4px;width:fit-content;margin:0 0 24px;display:grid}.hero-offer strong{color:#c92f58;letter-spacing:-.8px;font-size:clamp(1.65rem,2.8vw,2.35rem);line-height:1.05}.hero-offer span{color:#46566b;font-size:.9rem;font-weight:900;line-height:1.35}.tag-row{flex-wrap:wrap;justify-content:flex-start;gap:10px;margin:8px 0 28px;display:flex}.tag{border:3px solid;border-radius:16px;padding:10px 22px;font-weight:900}.tag-yellow{color:#9a6410;background:#fff9e8;border-color:#ffd578}.tag-green{color:#238558;background:#effcf5;border-color:#a9e9c5}.tag-blue{color:#2d5d9e;background:#eef5ff;border-color:#b9d5fa}.button{border:0;border-radius:16px;justify-content:center;align-items:center;min-height:52px;padding:13px 24px;font-weight:900;transition:transform .15s,box-shadow .15s;display:inline-flex}.button:hover{transform:translateY(-2px)}.button:focus-visible{outline-offset:2px;outline:4px solid #39aeda47}input:focus-visible{outline-offset:2px;outline:4px solid #39aeda47}.button-primary{color:#fff;background:linear-gradient(135deg,#197bb9,#2ead78);box-shadow:0 7px #c8e4eb}.button-secondary{color:var(--navy);background:#edf6fa}.button-danger{color:#9b2342;background:#ffe6ed}.hero-button{letter-spacing:.1px;border:3px solid #0000;border-radius:19px;gap:12px;min-height:66px;padding:16px 28px;font-size:1.16rem}.hero-buy-button{color:#fff;background:linear-gradient(135deg,#ed3f72,#ff7a45);border-color:#fff;min-width:300px;font-size:1.32rem;box-shadow:0 8px #c7375e,0 15px 28px #d6365f3d}.hero-buy-button:hover{box-shadow:0 10px #c7375e,0 18px 32px #d6365f47}.hero-buy-button:focus-visible{outline-color:#ed3f7252}.hero-free-button{color:#12698e;background:#f4fcff;border-color:#42acd1;min-width:265px;box-shadow:0 7px #c8e8f3}.hero-free-button:hover{background:#e9f9ff;box-shadow:0 9px #c8e8f3}.hero-actions{flex-wrap:wrap;align-items:stretch;gap:16px;display:flex}.hero-visual{background:radial-gradient(circle at 50% 64%,#daf7eae6 0 45%,#0000 45.5%);border-radius:48% 48% 32% 32%;justify-content:center;align-items:center;min-width:0;min-height:530px;display:flex;position:relative}.hero-visual img{object-fit:contain;filter:drop-shadow(0 16px 12px #185b7b29);width:108%;max-width:660px;height:auto;display:block;transform:translateY(14px)}.info-grid{grid-template-columns:repeat(4,1fr);gap:18px;margin-top:36px;display:grid}.info-card{text-align:center;border-width:3px;border-radius:28px;padding:28px}.clay-info-icon{object-fit:cover;border-radius:26px;width:96px;height:96px;margin:0 auto;display:block;box-shadow:0 8px 18px #245c771f}.info-card h2{margin:12px 0 8px;font-size:1.25rem}.info-card p{color:var(--text);margin:0;line-height:1.6}.home-product-section{text-align:center;padding:88px 0 64px}.home-section-label{color:#d83d68;letter-spacing:1.2px;margin:0 0 12px;font-size:.82rem;font-weight:1000}.home-product-section>h2{color:#142f58;margin:0;font-size:clamp(2.35rem,4.6vw,4.1rem);line-height:1.05}.home-section-copy{color:#526b87;max-width:720px;margin:19px auto 34px;font-size:1.08rem;font-weight:800;line-height:1.6}.home-product-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;display:grid}.home-product-card{background:#fffffff5;border:3px solid #c7eaf5;border-radius:28px;min-width:0;padding:27px 22px;box-shadow:0 9px #237aa014}.home-product-card:nth-child(2){border-color:#f0c9d7}.home-product-card:nth-child(3){border-color:#f0d281}.home-product-card:nth-child(4){border-color:#afe2c8}.home-product-card h3{color:#173e70;font-family:var(--font-student);margin:15px 0 8px;font-size:1.42rem}.home-product-card p{color:#58718c;margin:0;font-weight:750;line-height:1.55}.home-final-offer{color:#fff;background:linear-gradient(135deg,#143b6a,#236f83);border-radius:32px;grid-template-columns:1fr auto;align-items:center;gap:42px;margin:8px 0 18px;padding:38px 42px;display:grid;box-shadow:0 18px 45px #18415b2e}.home-trust-block{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 24px;display:grid}.home-trust-block p{color:#f2fbff;margin:0;font-weight:900;line-height:1.4}.home-final-cta{text-align:center;justify-items:center;gap:10px;min-width:350px;display:grid}.home-final-cta small{color:#ffd978;letter-spacing:1px;font-weight:1000}.home-final-cta h2{color:#fff;margin:0;font-size:clamp(2.1rem,3.5vw,3.15rem);line-height:1}.home-final-cta .button{width:100%;min-height:60px}.home-mobile-buy-bar{display:none}.site-footer{text-align:center;color:#4f6b8c;border-top:2px solid #dceef3;margin-top:46px;padding:26px 20px}.site-footer strong{color:#123f7b;font-size:1.15rem}.site-footer strong span{color:#e9506c}.site-footer p{margin:7px 0 0}.footer-clay-icon{object-fit:cover;border-radius:22px;width:74px;height:74px;margin:0 auto 10px;display:block}.footer-policy-link{color:#258267;margin-top:12px;font-weight:900;display:inline-flex}.page-center{place-items:center;min-height:100vh;padding:28px 16px 56px;display:grid}.auth-layout{grid-template-columns:.92fr 1.08fr;align-items:stretch;gap:26px;width:min(1040px,100%);display:grid}.welcome-panel{color:#fff;box-shadow:var(--shadow);background:linear-gradient(145deg,#164b8b,#29a6bf);border-radius:34px;padding:48px;position:relative;overflow:hidden}.welcome-panel:after{content:"★";color:#ffffff29;font-size:6rem;position:absolute;bottom:15px;right:28px}.welcome-panel h1{margin:24px 0 16px;font-size:clamp(2.2rem,5vw,4rem);line-height:1}.welcome-panel p{color:#e8faff;font-size:1.15rem;line-height:1.65}.auth-clay-icon{object-fit:cover;border:4px solid #ffffffb3;border-radius:26px;width:92px;height:92px;margin:28px 0 0;display:block;box-shadow:0 9px 22px #09305b33}.back-link{gap:8px;font-weight:900;display:inline-flex}.panel{border-width:4px;border-radius:34px;padding:42px}.panel h2{margin:0 0 8px;font-size:2rem}.muted{color:var(--text);line-height:1.55}.form{gap:18px;margin-top:28px;display:grid}.field{gap:8px;display:grid}.field label{font-weight:900}.field input,.search-input{width:100%;color:var(--navy);background:#fff;border:3px solid #d9e9f1;border-radius:16px;padding:15px 17px}.code-input{letter-spacing:2px;text-transform:uppercase}.notice{border-radius:14px;padding:12px 15px;font-weight:800;line-height:1.45}.notice-error{color:#a02a4a;background:#ffedf1;border:2px solid #ffc9d8}.notice-success{color:#247d55;background:#eafaf1;border:2px solid #bcebd1}.form-footnote{color:#6a7f99;text-align:center;font-size:.92rem}.reset-page .panel{align-self:stretch}.password-requirements{color:#4f6b8c;background:#f5fcff;border:2px solid #cfe9f4;border-radius:16px;gap:6px;padding:16px 18px;line-height:1.4;display:grid}.password-requirements strong{color:var(--navy)}.password-requirements span:before{content:"✓ ";color:var(--green);font-weight:900}.button:disabled{cursor:not-allowed;opacity:.62;transform:none}.portal-shell{width:min(1220px,100% - 30px);margin:0 auto;padding:28px 0 70px}.portal-header{justify-content:space-between;align-items:center;gap:16px;margin-bottom:28px;display:flex}.portal-actions{align-items:center;gap:10px;display:flex}.portal-intro{box-shadow:var(--shadow);background:linear-gradient(135deg,#e7f8ff,#fff8dc);border:4px solid #fff;border-radius:32px;padding:34px}.portal-intro h1{margin:0;font-size:clamp(2rem,5vw,3.8rem)}.portal-intro p{color:var(--text);font-weight:800}.portal-section{margin-top:42px}.portal-section-head{justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:20px;display:flex}.portal-section-head h2{margin:2px 0 5px;font-size:clamp(1.8rem,4vw,2.8rem)}.portal-section-head p{color:var(--text);margin:0;font-weight:800}.portal-section-label{letter-spacing:1.5px;text-transform:uppercase;font-size:.86rem;color:var(--pink)!important}.portal-count{color:#247d55;background:#e8f9ef;border-radius:999px;flex:none;padding:10px 16px;font-weight:900}.portal-ebook-grid{grid-template-columns:repeat(2,1fr);gap:20px;display:grid}.portal-ebook-card{border:3px solid var(--line);background:#fff;border-radius:26px;grid-template-columns:165px 1fr;gap:20px;min-width:0;padding:17px;display:grid;box-shadow:0 8px #237aa017}.portal-ebook-cover{aspect-ratio:.707;background:#f7fbfd;border:2px solid #e5eef2;border-radius:17px;overflow:hidden}.portal-ebook-cover img{object-fit:cover;width:100%;height:100%;display:block}.portal-ebook-copy{flex-direction:column;min-width:0;display:flex}.portal-ebook-copy h3{margin:6px 0 8px;font-size:1.25rem}.portal-ebook-copy p{color:var(--text);margin:0 0 18px;line-height:1.5}.portal-ebook-actions{flex-wrap:wrap;gap:8px;margin-top:auto;display:flex}.portal-ebook-actions .button{min-height:44px;padding:10px 14px;font-size:.88rem}.portal-footer{border-top:2px solid #dceef3;justify-content:center;gap:25px;margin-top:46px;padding:25px 10px;display:flex}.portal-footer a{color:#258267;font-weight:900}.subject-menu{grid-template-columns:repeat(2,1fr);gap:18px;margin-top:28px;display:grid}.subject-card{background:#fff;border:3px solid;border-radius:27px;grid-template-columns:72px 1fr auto;align-items:center;gap:18px;min-width:0;min-height:142px;padding:22px;transition:transform .16s,box-shadow .16s;display:grid;box-shadow:0 9px #237aa017}.subject-card:hover{transform:translateY(-3px);box-shadow:0 12px #237aa01c}.subject-card:focus-visible{outline-offset:3px;outline:4px solid #39aeda47}.subject-card-bm{background:linear-gradient(135deg,#f7fdff,#eefaff);border-color:#a8ddf0}.subject-card-math{background:linear-gradient(135deg,#fffdf5,#fff5d5);border-color:#f0cc72}.subject-icon{color:#fff;background:#258fbd;border-radius:22px;place-items:center;width:72px;height:72px;font-size:2rem;font-weight:900;display:grid;box-shadow:0 7px #d4edf6}.subject-card-math .subject-icon{color:#7b5107;box-shadow-color:#f5e7bd;background:#ffd064}.subject-card>span:nth-child(2){gap:3px;min-width:0;display:grid}.subject-card small{color:#dd4e73;letter-spacing:1px;text-transform:uppercase;font-size:.75rem;font-weight:900}.subject-card strong{color:var(--navy);font-size:clamp(1.3rem,3vw,1.8rem)}.subject-card em{color:var(--text);font-style:normal;font-weight:800}.subject-card>b{color:#2386aa;font-size:1.75rem}.subject-card-math>b{color:#b77908}.subject-content-head{background:#f8fdff;border:3px solid #c7eaf5;border-radius:25px;margin-bottom:-18px;padding:28px 30px;scroll-margin-top:22px}.subject-content-head h2{margin:3px 0 6px;font-size:clamp(1.65rem,4vw,2.45rem)}.subject-content-head p{color:var(--text);margin:0;font-weight:800}.portal-section-compact{margin-top:28px}.exercise-grid{grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px;display:grid}.exercise-card{border:3px solid var(--line);background:#fff;border-radius:24px;flex-direction:column;min-height:180px;padding:22px;display:flex;box-shadow:0 8px #237aa017}.exercise-card .num{color:#15789f;background:#e2f6fd;border-radius:14px;place-items:center;width:44px;height:44px;font-weight:900;display:grid}.exercise-card h2{margin:18px 0 5px;font-size:1.22rem}.exercise-card p{color:var(--text);margin:0 0 18px}.exercise-card .button{margin-top:auto}.minimal-portal{flex-direction:column;width:min(980px,100% - 30px);min-height:100vh;display:flex}.minimal-portal-hero{text-align:center;padding:30px 18px 20px}.minimal-portal-hero>span{margin-bottom:10px;font-size:2.8rem;display:block}.minimal-portal-hero h1{color:#123f7b;font-family:var(--font-student);margin:0;font-size:clamp(2.8rem,8vw,5rem);line-height:1}.minimal-portal-hero p{color:#6c8299;margin:12px 0 0;font-size:1.05rem;font-weight:900}.minimal-subject-grid{grid-template-columns:repeat(2,1fr);gap:26px;width:min(780px,100%);margin:24px auto 25px;display:grid}.minimal-subject-card{text-align:center;background:#fff;border:4px solid;border-radius:36px;flex-direction:column;justify-content:center;align-items:center;min-height:355px;padding:28px 24px;transition:transform .16s,box-shadow .16s;display:flex;box-shadow:0 13px #237aa017}.minimal-subject-card:hover{transform:translateY(-5px);box-shadow:0 18px #237aa01a}.minimal-subject-card:focus-visible{outline-offset:4px;outline:5px solid #39aeda42}.minimal-subject-bm{background:linear-gradient(160deg,#f6fdff,#e9f8ff);border-color:#91d5ed}.minimal-subject-math{background:linear-gradient(160deg,#fffdf6,#fff5d7);border-color:#f0cf79}.minimal-subject-icon{background:#fffaf1;border:4px solid #ffffffe6;border-radius:40px;width:155px;height:155px;display:block;overflow:hidden;box-shadow:0 10px #cceaf5,0 18px 32px #1d59761f}.minimal-subject-icon img{object-fit:cover;width:100%;height:100%;display:block}.minimal-subject-math .minimal-subject-icon{box-shadow:0 10px #f6e5b7,0 18px 32px #825b121c}.minimal-subject-card strong{color:#123f7b;font-family:var(--font-student);margin-top:25px;font-size:clamp(1.9rem,4vw,2.55rem);font-weight:700}.minimal-subject-card em{color:#237d5b;background:#fff;border-radius:999px;margin-top:13px;padding:9px 19px;font-style:normal;font-weight:900}.minimal-subject-math em{color:#9c660a}.minimal-portal .portal-footer{margin-top:auto}.minimal-subject-shell{width:min(1120px,100% - 30px);margin:0 auto;padding:28px 0 70px}.minimal-subject-title{min-height:250px;box-shadow:var(--shadow);text-align:center;border:4px solid #fff;border-radius:34px;flex-direction:column;justify-content:center;align-items:center;padding:34px;display:flex;position:relative;overflow:hidden}.minimal-title-bm{background:radial-gradient(circle at 10% 15%,#fffc 0 4rem,#0000 4.1rem),linear-gradient(145deg,#def5ff,#f4fcff)}.minimal-title-math{background:radial-gradient(circle at 90% 16%,#ffffffbf 0 4rem,#0000 4.1rem),linear-gradient(145deg,#fff4c9,#fffaf0)}.minimal-back{color:#317b9c;background:#ffffffd1;border-radius:999px;padding:9px 14px;font-weight:900;position:absolute;top:23px;left:25px}.minimal-subject-title>span{color:#fff;background:#278fba;border-radius:24px;place-items:center;width:78px;height:78px;font-size:2.2rem;font-weight:900;display:grid;box-shadow:0 8px #237aa024}.minimal-title-math>span{color:#76510a;background:#ffd36a}.minimal-subject-title h1{color:#123f7b;margin:20px 0 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#f1cf76;border-radius:999px;margin:28px 0 10px;padding:8px 14px;font-size:.8rem;font-weight:900;display:table;color:#936008!important}.math-menu-hero h1{color:#123f7b;letter-spacing:-2px;margin:0;font-size:clamp(2.8rem,7vw,5rem);line-height:1}.math-menu-hero>p:last-child{max-width:650px;color:var(--text);margin:18px 0 0;font-size:1.08rem;font-weight:800;line-height:1.55}.math-exercise-section{margin-top:42px}.math-exercise-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;display:grid}.math-exercise-card{background:#fff;border:4px solid #b9dff0;border-radius:28px;flex-direction:column;min-width:0;min-height:390px;display:flex;overflow:hidden;box-shadow:0 10px #237aa017}.math-card-visual{color:#123f7b;min-height:145px;font-family:var(--font-student);background:linear-gradient(145deg,#e7f8ff,#effcf5);justify-content:center;align-items:center;gap:15px;padding:20px;display:flex}.math-card-visual span{background:#ffffffd1;border:4px solid #fffc;border-radius:24px;place-items:center;width:78px;height:78px;font-size:3rem;display:grid;box-shadow:0 7px #237aa01f}.math-card-visual b{color:#165487;background:#ffffffc2;border-radius:15px;padding:10px 15px;font-size:clamp(1.35rem,3vw,2rem)}.math-card-copy{flex-direction:column;flex:1;align-items:flex-start;padding:25px;display:flex}.math-card-label{color:#b27006;text-transform:uppercase;letter-spacing:1px;margin:0 0 8px;font-size:.78rem;font-weight:900}.math-card-copy h2{margin:0 0 9px;font-size:clamp(1.45rem,3vw,2rem);line-height:1.1}.math-card-copy>p:not(.math-card-label){color:var(--text);margin:0 0 22px;font-weight:800;line-height:1.5}.math-open-button{color:#fff;background:linear-gradient(135deg,#268ec0,#2d9a6b);width:100%;margin-top:auto;box-shadow:0 7px #d1e9ed}.math-tone-orange{border-color:#f1cc77}.math-tone-orange .math-card-visual{background:linear-gradient(145deg,#fff6d9,#ffeadc)}.math-tone-orange 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9px}.sifir-name-label{color:#475569;text-align:left;margin-bottom:7px;font-weight:900;display:block}.sifir-name-input{color:#123f7b;text-align:center;text-transform:uppercase;background:#fff;border:3px solid #d7e2e8;border-radius:15px;outline:0;width:100%;padding:14px 16px;font-family:inherit;font-size:1.22rem;font-weight:900;box-shadow:inset 0 2px 4px #1e40550d}.sifir-name-input:focus{background:#f3fbff;border-color:#58b9db}.sifir-name-error{color:#b42343;margin:8px 0 0;font-weight:900}.sifir-action{color:#fff;border:0;border-radius:15px;width:100%;margin-top:14px;padding:15px 18px;font-family:inherit;font-size:1.05rem;font-weight:900;transition:transform .1s,box-shadow .1s;box-shadow:0 5px #0000002e}.sifir-action:active{box-shadow:none;transform:translateY(5px)}.sifir-start-button{background:#1597c8}.sifir-start-button:hover{background:#087fac}.sifir-cancel-button{background:#ed6478}.sifir-cancel-button:hover{background:#d94d64}.sifir-replay-button{background:#31a56c}.sifir-replay-button:hover{background:#238d59}.sifir-game-screen{padding:17px}.sifir-game-status{background:#eefaff;border:2px solid #ccecf6;border-radius:15px;justify-content:space-between;align-items:center;gap:14px;margin-bottom:13px;padding:10px 13px;display:flex}.sifir-game-status>div{text-align:left;min-width:0;display:grid}.sifir-game-status>div:last-child{text-align:right;flex:none}.sifir-game-status small,.sifir-result-grid small{color:#8795a8;letter-spacing:.8px;text-transform:uppercase;font-size:.72rem;font-weight:900}.sifir-game-status strong{color:#0872a8;text-overflow:ellipsis;text-transform:uppercase;white-space:nowrap;overflow:hidden}.sifir-game-status>div:last-child strong{color:#d4860f;font-size:1.3rem}.sifir-progress-text{color:#55708a;margin:-8px 0 11px;font-size:.84rem;font-weight:900}.sifir-result-grid{grid-template-columns:repeat(2,1fr);gap:10px;margin:20px 0;display:grid}.sifir-result-grid>div{background:#fff9e8;border:2px solid #f0d089;border-radius:15px;gap:3px;padding:14px 8px;display:grid}.sifir-result-grid>div:last-child{background:#edf9fd;border-color:#b7e2f0}.sifir-result-grid strong{color:#d3830c;font-size:2rem}.sifir-result-grid>div:last-child strong{color:#0872a8}@keyframes sifir-pop{0%{opacity:0;transform:scale(.86)}to{opacity:1;transform:scale(1)}}.sifir-pop{animation:.38s cubic-bezier(.18,.89,.32,1.28) both sifir-pop}.admin-shell{width:min(1120px,100% - 28px);margin:0 auto;padding:36px 0 70px}.admin-head{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:24px;display:flex}.admin-head h1{margin:0 0 4px}.admin-grid{grid-template-columns:340px 1fr;gap:22px;display:grid}.admin-card{border:3px solid var(--line);background:#fff;border-radius:24px;padding:24px;box-shadow:0 8px #237aa014}.admin-card h2{margin-top:0}.admin-trial-card{background:linear-gradient(135deg,#faf8ff,#f1fbff);border-color:#c6baf7;justify-content:space-between;align-items:center;gap:28px;margin-bottom:22px;display:flex}.admin-trial-card .eyebrow{color:#5f49af;background:#eeeaff;border-color:#c6baf7;margin-bottom:14px;display:inline-flex}.admin-trial-card h2{margin-bottom:7px}.admin-writing-card{background:linear-gradient(135deg,#f4fff9,#f1fbff);border-color:#9edac1}.admin-writing-card .eyebrow{color:#247d55;background:#e7f8ed;border-color:#a9e9c5}.button-trial{color:#fff;background:linear-gradient(135deg,#6d55c7,#2b9dc3);flex:none;box-shadow:0 7px #d7d0f0}.admin-payment-card{grid-template-columns:.8fr 1.2fr;align-items:center;gap:30px;margin-bottom:22px;display:grid}.admin-payment-card 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.button{width:100%}.manual-activation-note{text-align:left;max-width:none}}.buyer-list{gap:12px;margin-top:18px;display:grid}.buyer-row{border:2px solid #e0edf3;border-radius:18px;grid-template-columns:1fr auto;align-items:center;gap:10px;padding:16px;display:grid}.buyer-row h3{margin:0 0 3px}.buyer-row p{color:var(--text);margin:0;font-size:.92rem}.buyer-actions{flex-wrap:wrap;justify-content:flex-end;gap:7px;display:flex}.buyer-actions .button{min-height:40px;padding:8px 12px;font-size:.86rem}.admin-support-card{margin-top:22px}.admin-support-head{justify-content:space-between;align-items:flex-end;gap:20px;display:flex}.admin-support-head .eyebrow{margin-bottom:12px;display:inline-flex}.admin-support-head h2{margin-bottom:4px}.support-message-list{gap:14px;margin-top:20px;display:grid}.support-message-row{background:#fbfeff;border:2px solid #cceaf4;border-radius:20px;padding:20px}.sifir-trial-shell{width:min(680px,100% - 20px);min-height:100vh;font-family:var(--font-student);margin:0 auto;padding:22px 0 48px}.sifir-trial-top{justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;display:flex}.sifir-private-badge{color:#5f49af;background:#f2efff;border:2px solid #c6baf7;border-radius:999px;justify-content:center;align-items:center;padding:11px 16px;font-weight:900;display:inline-flex}.sifir-card{text-align:center;background:#fff;border:4px solid #e8f1f5;border-radius:30px;padding:25px;box-shadow:0 16px 35px #1f587721}.sifir-kicker{color:#5f49af;text-transform:uppercase;letter-spacing:1.3px;background:#eeeaff;border-radius:999px;margin:0 0 8px;padding:7px 14px;font-size:.78rem;font-weight:900;display:inline-flex}.sifir-card h1{color:#0872a8;margin:0;font-size:clamp(2rem,7vw,3rem);line-height:1.05}.sifir-subtitle{color:#64748b;text-transform:uppercase;letter-spacing:2px;margin:7px 0 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#dcebf3;border-radius:28px;display:block}.support-message-row.is-resolved{opacity:.72;background:#f7f9fa;border-color:#e1e9ed}.support-message-meta{justify-content:space-between;align-items:center;gap:12px;display:flex}.support-message-meta time{color:#6a7f99;font-size:.84rem;font-weight:800}.support-message-row h3{margin:13px 0 5px}.support-sender{color:#55718f;margin:0}.support-sender a{color:#187fa6;text-decoration:underline}.support-message-body{white-space:pre-wrap;color:#405b78;line-height:1.6}.support-message-row .buyer-actions{justify-content:flex-start}.status-progress{color:#99610b;background:#fff2bf;border-color:#f1cf69}.exercise-feedback-trigger{z-index:70;right:max(16px, env(safe-area-inset-right));bottom:max(16px, env(safe-area-inset-bottom));color:#164b72;min-height:48px;font-family:var(--font-ui), "Nunito", sans-serif;cursor:pointer;background:#fff;border:3px solid #b7e2f3;border-radius:999px;align-items:center;gap:8px;padding:10px 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#0a2d4847}.exercise-feedback-close{color:#526f88;cursor:pointer;background:#edf7fb;border:0;border-radius:50%;width:40px;height:40px;font-size:1.8rem;line-height:1;position:absolute;top:12px;right:14px}.exercise-feedback-heading{align-items:center;gap:13px;padding-right:42px;display:flex}.exercise-feedback-heading>span{background:#e5f7ff;border-radius:18px;place-items:center;width:54px;height:54px;font-size:1.65rem;display:grid}.exercise-feedback-heading p{color:#e7587c;font:900 .78rem/1 var(--font-ui), "Nunito", sans-serif;text-transform:uppercase;letter-spacing:.08em;margin:0 0 2px}.exercise-feedback-heading h2{color:var(--navy);margin:0}.exercise-feedback-exercise{color:#245276;background:#f3fbfe;border:2px solid #d7eef7;border-radius:16px;justify-content:space-between;gap:12px;margin:18px 0;padding:13px 15px;display:flex}.exercise-feedback-exercise span{color:#70869a;font:800 .82rem/1.4 var(--font-ui), "Nunito", 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h1{color:var(--navy);text-align:center;text-overflow:ellipsis;white-space:nowrap;margin:0;font-size:clamp(.92rem,3vw,1.15rem);line-height:1.2;overflow:hidden}.document-viewer-toolbar .button{white-space:nowrap;min-height:42px;padding:9px 13px}.document-viewer-actions{align-items:center;gap:8px;display:flex}.document-print-button{color:#174d38;background:#dff7e9;box-shadow:0 5px #c1e7d1}.document-print-button:disabled{opacity:.55;cursor:wait}.pdf-pages{background:#dfe9ed;gap:22px;width:min(1050px,100%);min-height:calc(100dvh - 70px);margin:0 auto;padding:22px 12px 28px;display:grid}.pdf-loading,.pdf-viewer-error{z-index:12;width:min(520px,100% - 24px);color:var(--navy);text-align:center;background:#fffffff7;border:2px solid #bad9e4;border-radius:18px;justify-content:center;align-items:center;gap:12px;margin:10px auto;padding:18px;display:flex;position:sticky;top:82px;box-shadow:0 8px 24px #19465b24}.pdf-loading span{border:4px solid #d8edf4;border-top-color:#268eb5;border-radius:50%;flex:none;width:24px;height:24px;animation:.8s linear infinite pdf-spin}.pdf-viewer-error{color:#97314d;border-color:#f3c5cf;flex-direction:column;position:relative;top:auto}.pdf-page-card{background:#fff;border-radius:5px;width:fit-content;max-width:100%;margin:0 auto;overflow:hidden;box-shadow:0 8px 24px #19374633}.pdf-page-card canvas{background:#fff;max-width:100%;height:auto;display:block}.pdf-page-card figcaption{color:#5e7180;text-align:center;background:#f7fafb;padding:7px;font-size:.75rem;font-weight:800}.pdf-print-help{padding:13px 16px calc(13px + env(safe-area-inset-bottom));color:#3d6070;text-align:center;background:#f7fcfe;margin:0;font-size:.84rem;font-weight:800}@keyframes pdf-spin{to{transform:rotate(360deg)}}.game-hero{text-align:center;border:4px solid var(--line);box-shadow:var(--shadow);background:#fff;border-radius:30px;padding:36px 22px}.game-hero h1{margin:10px 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#41547621}.sales-hero:before{content:"";z-index:-1;pointer-events:none;border:2px solid #ffffffbf;border-radius:31px;position:absolute;inset:18px}.sales-hero-copy{z-index:3;position:relative}.sales-kicker{color:#bd2448;letter-spacing:.7px;background:#ffffffb3;border:2px solid #ef6f8b;border-radius:999px;width:fit-content;padding:10px 18px;font-size:.82rem;font-weight:1000;display:inline-flex}.sales-hero h1{color:#10192b;letter-spacing:-3.5px;margin:25px 0 22px;font-size:clamp(3.2rem,5.4vw,5.65rem);font-weight:1000;line-height:.99}.sales-hero h1 em{color:#e2355d;font-style:normal}.sales-lead{color:#3f4a60;max-width:650px;margin:0;font-size:clamp(1.1rem,1.6vw,1.35rem);font-weight:800;line-height:1.55}.sales-proof{flex-wrap:wrap;gap:11px;margin:27px 0 30px;display:flex}.sales-proof span{color:#314157;background:#fffc;border:2px solid #34445d1a;border-radius:999px;padding:10px 15px;font-weight:900;box-shadow:0 5px 15px 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20px;display:flex;position:absolute;box-shadow:0 19px 30px #26395433}.ebook-cover small{letter-spacing:.4px;font-size:.62rem;font-weight:1000}.ebook-cover b{margin:35px 0 24px;font-size:2.05rem;line-height:1.04}.ebook-cover span{background:#ffffffa6;border-radius:999px;margin-top:auto;padding:7px 10px;font-size:.7rem;font-weight:900}.ebook-cover-back{color:#133f6e;background:linear-gradient(145deg,#dff8ff,#fff4c9);top:18px;right:0;transform:rotate(13deg)}.ebook-cover-front{color:#183e6a;background:linear-gradient(145deg,#fff6c8,#ffdce7);top:0;left:10px}.floating-label{z-index:6;color:#253651;background:#fff;border:3px solid #fff;border-radius:999px;padding:12px 16px;font-weight:1000;position:absolute;box-shadow:0 10px 30px #23355024}.floating-label-one{bottom:23%;left:-4%}.floating-label-two{bottom:11%;right:-2%}.sales-strip{color:#334157;background:#fff;border:2px solid #e8edf3;border-radius:24px;grid-template-columns:repeat(4,1fr);gap:20px;width:min(1050px,100% - 38px);margin:35px auto 0;padding:28px 35px;display:grid;box-shadow:0 15px 40px #41547614}.sales-strip span{text-align:center;justify-content:center;align-items:center;gap:10px;font-weight:900;display:flex}.sales-strip b{color:#e2355d;font-size:1.8rem}.sales-growth-note{color:#59677c;text-align:center;width:min(890px,100% - 44px);margin:18px auto 0;font-size:1rem;font-weight:850;line-height:1.55}.sales-section{text-align:center;width:min(1120px,100% - 32px);margin:0 auto;padding:110px 0}.sales-section-label{color:#e2355d;letter-spacing:1.1px;margin:0 0 17px;font-size:.85rem;font-weight:1000}.sales-section h2,.sales-offer h2{color:#121c30;letter-spacing:-2px;margin:0;font-size:clamp(2.5rem,4.7vw,4.4rem);font-weight:1000;line-height:1.06}.sales-section h2 span{color:#248f75}.sales-section-intro{color:#59677d;max-width:750px;margin:24px auto 42px;font-size:1.18rem;font-weight:750;line-height:1.6}.problem-grid,.package-grid,.steps-grid{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}.problem-grid 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p{color:#66758a;margin:0;font-weight:750;line-height:1.45}.exercise-preview-card>small{color:#267aa0;background:#eaf8fd;border-radius:999px;width:fit-content;margin:auto 5px 0 68px;padding:7px 11px;font-weight:900}.sales-math-grid{text-align:left;grid-template-columns:repeat(3,1fr);gap:18px;display:grid}.sales-math-card{background:linear-gradient(145deg,#fff,#f0fbff);border:3px solid #c8e8f5;border-radius:24px;grid-template-columns:54px 1fr;gap:15px;min-height:205px;padding:23px;display:grid;position:relative;overflow:hidden;box-shadow:0 10px #2884a914}.sales-math-card:last-child:nth-child(3n+1){grid-column:2}.sales-math-icon{background:#fff;border-radius:17px;place-items:center;width:54px;height:54px;font-size:1.85rem;display:grid;box-shadow:0 6px 18px #264e6d1a}.sales-math-icon.is-image{overflow:hidden}.sales-math-icon.is-image img{object-fit:cover;width:100%;height:100%;display:block}.sales-math-card small{color:#3784a6;letter-spacing:.6px;text-transform:uppercase;font-size:.72rem;font-weight:1000}.sales-math-card h3{color:#172238;margin:5px 0 8px;font-size:1.16rem;line-height:1.25}.sales-math-card p{color:#66758a;margin:0;font-size:.9rem;font-weight:750;line-height:1.45}.sales-math-card>b{color:#276f92;width:fit-content;font-family:var(--font-student);background:#ffffffd9;border-radius:999px;grid-column:1/-1;margin-top:auto;padding:7px 12px}.sales-math-orange{background:linear-gradient(145deg,#fff,#fff8df);border-color:#f3d17e}.sales-math-green{background:linear-gradient(145deg,#fff,#effbf5);border-color:#a8e2c7}.sales-math-pink{background:linear-gradient(145deg,#fff,#fff1f6);border-color:#f2bed0}.sales-math-purple{background:linear-gradient(145deg,#fff,#f7f3ff);border-color:#d5c8f4}.sales-math-yellow{background:linear-gradient(145deg,#fff,#fff9dc);border-color:#f1da83}.preview-reassurance-math{margin-top:28px}.ebook-preview-section{background:linear-gradient(#fff7df,#fffdf6);width:100%;padding-inline:max(16px,50% - 560px)}.ebook-preview-grid{grid-template-columns:repeat(3,1fr);align-items:stretch;gap:24px;display:grid}.ebook-preview-card{background:#fff;border:3px solid #caeaf4;border-radius:28px;margin:0;padding:17px 17px 23px;box-shadow:0 15px 38px #3a4f691a}.ebook-preview-card:nth-child(2){border-color:#f1b7ca}.ebook-preview-card:nth-child(3){border-color:#a9e4c8}.ebook-page-frame{background:#f8fcfd;border-radius:18px;height:540px;overflow:hidden}.ebook-page-frame img{object-fit:contain;width:100%;height:100%;display:block}.ebook-preview-card figcaption{gap:7px;margin-top:18px;display:grid}.ebook-preview-card figcaption b{color:#172238;font-size:1.32rem}.ebook-preview-card figcaption span{color:#607188;font-size:1rem;font-weight:800}.bm-standalone-shell{background:#f5fbfd;width:100%;min-height:100dvh}.bm-standalone-frame{background:#f5fbfd;border:0;width:100%;height:100dvh;display:block}.preview-reassurance{flex-wrap:wrap;justify-content:center;gap:12px;margin-top:36px;display:flex}.preview-reassurance span{color:#237d5b;background:#fff;border:2px solid #a9e4c8;border-radius:999px;padding:11px 17px;font-weight:900}.demo-section{text-align:left;grid-template-columns:1fr .78fr;align-items:center;gap:80px;display:grid}.demo-section h2{max-width:680px}.demo-copy>p:not(.sales-section-label){color:#59677d;font-size:1.15rem;font-weight:750;line-height:1.6}.demo-list{gap:13px;margin:30px 0 0;padding:0;list-style:none;display:grid}.demo-list li{background:#fff;border:2px solid #e9edf2;border-radius:18px;align-items:center;gap:15px;padding:16px;display:flex}.demo-list li>span{background:#edf9fd;border-radius:14px;place-items:center;width:50px;height:50px;font-size:1.5rem;display:grid}.demo-list b,.demo-list small{display:block}.demo-list b{font-size:1.07rem}.demo-list small{color:#68758b;margin-top:3px;font-weight:700}.phone-demo{text-align:center;color:#174779;background:#fff;border:14px solid #172238;border-radius:55px;width:min(410px,100%);min-height:660px;margin:0 auto;padding:34px 24px;position:relative;box-shadow:0 28px 70px #23355038}.phone-speaker{background:#172238;border-radius:0 0 12px 12px;width:100px;height:15px;margin:-35px auto 28px}.phone-demo>small{color:#4a6f91;font-weight:900}.demo-picture{background:#fbfeff;border:4px solid #bce9f8;border-radius:24px;place-items:center;width:240px;height:240px;margin:25px auto;font-size:8rem;display:grid}.demo-answer{justify-content:center;align-items:flex-end;font-size:4.8rem;font-weight:1000;line-height:1;display:flex}.demo-answer i{color:#154b84;font-style:normal}.demo-answer b{border-bottom:8px solid #35a16a;padding-bottom:3px}.demo-options{grid-template-columns:repeat(3,1fr);gap:8px;margin:25px 0 18px;display:grid}.demo-options span{color:#6783a0;border:3px solid #dfeaf0;border-radius:14px;padding:14px 4px;font-size:1.3rem;font-weight:1000}.demo-options .demo-correct{color:#238558;background:#e8fbf1;border-color:#43b67d}.demo-praise{color:#21825a;background:#e7f9ef;border-radius:999px;padding:10px 14px;font-weight:1000;display:inline-flex}.benefits-section{background:#fff2da;width:100%;padding-inline:max(16px,50% - 560px)}.benefits-grid{grid-template-columns:repeat(2,1fr);gap:14px;max-width:980px;margin:45px auto 0;display:grid}.benefits-grid div{text-align:left;background:#fffc;border-radius:16px;align-items:center;gap:14px;padding:18px 20px;display:flex}.benefits-grid span{color:#fff;background:#2a9c72;border-radius:50%;flex:none;place-items:center;width:33px;height:33px;font-weight:1000;display:grid}.steps-grid{margin-top:48px}.steps-grid article{padding:30px;position:relative}.steps-grid article:not(:last-child):after{content:"→";color:#cfdae3;font-size:2.1rem;font-weight:1000;position:absolute;top:48px;right:-22px}.steps-grid article>span{color:#fff;background:#172238;border-radius:22px;place-items:center;width:72px;height:72px;margin:0 auto 22px;font-size:2rem;font-weight:1000;display:grid;box-shadow:0 8px #dce5eb}.steps-grid b{font-size:1.28rem;display:block}.steps-grid p{color:#647087;font-weight:700;line-height:1.55}.sales-offer{color:#fff;background:linear-gradient(135deg,#152139,#223a5d);border-radius:36px;grid-template-columns:1.1fr .9fr;align-items:center;gap:60px;width:min(1120px,100% - 32px);margin:20px auto 0;padding:65px;display:grid;box-shadow:0 28px 70px #16233933}.sales-offer h2{color:#fff;margin:22px 0}.sales-offer>div:first-child>p{color:#dbe8f5;font-size:1.15rem;font-weight:750;line-height:1.6}.sales-offer ul{color:#eaf6ff;gap:12px;padding:0;font-weight:900;list-style:none;display:grid}.offer-card{text-align:center;color:#172238;background:#fff;border-radius:28px;padding:38px 32px;box-shadow:0 15px #0000001f}.offer-card>small{color:#e2355d;letter-spacing:1px;font-weight:1000}.normal-price{color:#7a8798;justify-content:center;align-items:center;gap:9px;margin:20px auto 2px;font-weight:900;display:flex}.normal-price del{color:#a84a60;font-size:1.25rem;text-decoration-thickness:3px}.offer-card>.launch-price{color:#152139;letter-spacing:-5px;margin:0;font-size:clamp(4.5rem,8vw,6.7rem);line-height:1;display:block}.launch-price sup{color:#258267;letter-spacing:0;vertical-align:top;margin-right:7px;font-size:.35em;position:relative;top:.24em}.price-saving{color:#9b6207;background:#fff7dc;border:2px solid #ffd77e;border-radius:999px;width:fit-content;margin:10px auto 17px;padding:7px 14px;font-weight:1000}.offer-card>p{color:#647087;font-weight:700;line-height:1.5}.sales-buy-button{color:#fff;background:linear-gradient(135deg,#e2355d,#e66b42);width:100%;margin:10px 0 16px;box-shadow:0 8px #f4d5d9}.sales-bottom-buy{color:#fff;background:linear-gradient(135deg,#e2355d,#e66b42);min-height:58px;margin-top:34px;font-size:1.04rem;box-shadow:0 8px 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