:where(.landing-root){--brand-navy:#0d1b3d;--brand-navy-700:#142552;--brand-navy-600:#1b3068;--brand-navy-500:#2a4485;--brand-teal:#14bba6;--brand-teal-600:#0fa391;--brand-teal-500:#2bd0bb;--brand-teal-400:#5fdccd;--brand-teal-200:#b5e8dd;--brand-teal-100:#d4f5f0;--brand-teal-50:#ebfaf7;--ink-900:#0d1b3d;--ink-800:#1a2a52;--ink-700:#2d3d66;--ink-600:#4a5878;--ink-500:#6b7794;--ink-400:#95a0b8;--ink-300:#bfc7d8;--ink-200:#e1e6f0;--ink-100:#eef1f7;--ink-50:#f6f8fc;--paper:#fff;--bg-app:var(--ink-50);--bg-canvas:var(--paper);--bg-sunken:var(--ink-100);--bg-inverse:var(--brand-navy);--bg-accent-soft:var(--brand-teal-50);--fg-1:var(--ink-900);--fg-2:var(--ink-700);--fg-3:var(--ink-500);--fg-4:var(--ink-400);--fg-on-navy:#fff;--fg-on-teal:#fff;--fg-link:var(--brand-teal-600);--border-subtle:var(--ink-200);--border-default:var(--ink-300);--border-strong:var(--ink-700);--border-focus:var(--brand-teal);--success:#14bba6;--success-bg:#e5f8f4;--warning:#f5a524;--warning-bg:#fef3dc;--warning-emphasis:#a56612;--danger:#e5484d;--danger-bg:#fce8e9;--danger-border:#f3b4b6;--danger-emphasis:#c73e42;--info:#3d7cff;--info-bg:#e5eeff;--info-emphasis:#1d4ed8;--subject-math:#6d28d9;--subject-math-bg:#ede9fe;--subject-rw:#0369a1;--subject-rw-bg:#e0f2fe;--subject-verbal:#c8741b;--subject-verbal-bg:#fff3e5;--review:#f59e0b;--review-bg:#fffbeb;--warning-soft:#fffcf5;--warning-soft-edge:#fde8a8;--brand-teal-soft:#f7fbfb;--brand-teal-soft-edge:#14bba647;--info-soft:#fafbff;--info-soft-edge:#c7d6fb;--difficulty-1:#14bba6;--difficulty-2:#12af9c;--difficulty-3:#0fa391;--difficulty-4:#0f9583;--difficulty-5:#0f8674;--font-sans:"Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, system-ui, sans-serif;--font-display:var(--font-bricolage), "Bricolage Grotesque", "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;--font-serif:"Source Serif 4", Georgia, "Times New Roman", serif;--font-mono:"JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;--font-brand:var(--font-display);--fs-12:.75rem;--fs-13:.8125rem;--fs-14:.875rem;--fs-15:.9375rem;--fs-16:1rem;--fs-18:1.125rem;--fs-20:1.25rem;--fs-24:1.5rem;--fs-28:1.75rem;--fs-32:2rem;--fs-40:2.5rem;--fs-48:3rem;--fs-56:3.5rem;--fs-64:4rem;--lh-tight:1.1;--lh-snug:1.25;--lh-normal:1.45;--lh-relaxed:1.6;--tracking-tight:-.02em;--tracking-normal:0em;--tracking-wide:.04em;--tracking-caps:.08em;--space-0:0;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--space-12:48px;--space-16:64px;--space-20:80px;--space-24:96px;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-xl:20px;--radius-2xl:28px;--radius-pill:999px;--shadow-xs:0 1px 2px #0d1b3d0f;--shadow-sm:0 2px 4px #0d1b3d0f, 0 1px 2px #0d1b3d0a;--shadow-md:0 6px 16px #0d1b3d14, 0 2px 4px #0d1b3d0a;--shadow-lg:0 16px 40px #0d1b3d1f, 0 4px 12px #0d1b3d0f;--shadow-pop:0 24px 60px #0d1b3d2e;--shadow-teal-glow:0 8px 24px #14bba652;--shadow-inset:inset 0 1px 0 #fff9;--ease-out:cubic-bezier(.22, 1, .36, 1);--ease-in-out:cubic-bezier(.65, 0, .35, 1);--ease-bounce:cubic-bezier(.34, 1.56, .64, 1);--duration-fast:.12s;--duration-base:.2s;--duration-slow:.32s;--container-narrow:720px;--container-base:1080px;--container-wide:1280px;--sidebar-w:72px;--sidebar-w-expanded:248px;--topbar-h:64px;color:var(--fg-1);font-family:var(--font-sans);font-size:var(--fs-16);line-height:var(--lh-normal)}:where(.landing-root) .t-display-1{font-family:var(--font-display);font-size:var(--fs-64);font-weight:800;line-height:var(--lh-tight);letter-spacing:var(--tracking-tight)}:where(.landing-root) .t-display-2{font-family:var(--font-display);font-size:var(--fs-48);font-weight:800;line-height:var(--lh-tight);letter-spacing:var(--tracking-tight)}:where(.landing-root) .t-h1{font-family:var(--font-display);font-size:var(--fs-32);font-weight:700;line-height:var(--lh-snug);letter-spacing:var(--tracking-tight)}:where(.landing-root) .t-h2{font-family:var(--font-display);font-size:var(--fs-24);font-weight:700;line-height:var(--lh-snug);letter-spacing:-.01em}:where(.landing-root) .t-h3{font-family:var(--font-display);font-size:var(--fs-20);font-weight:600;line-height:var(--lh-snug)}:where(.landing-root) .t-h4{font-family:var(--font-sans);font-size:var(--fs-16);font-weight:700;line-height:var(--lh-snug)}:where(.landing-root) .t-body-lg{font-size:var(--fs-18);line-height:var(--lh-relaxed);color:var(--fg-1)}:where(.landing-root) .t-body{font-size:var(--fs-16);line-height:var(--lh-normal);color:var(--fg-1)}:where(.landing-root) .t-body-sm{font-size:var(--fs-14);line-height:var(--lh-normal);color:var(--fg-2)}:where(.landing-root) .t-meta{font-size:var(--fs-13);line-height:var(--lh-snug);color:var(--fg-3)}:where(.landing-root) .t-eyebrow{font-size:var(--fs-12);text-transform:uppercase;letter-spacing:var(--tracking-caps);color:var(--brand-teal-600);font-weight:700}:where(.landing-root) .t-question{font-family:var(--font-serif);font-size:var(--fs-18);line-height:var(--lh-relaxed);color:var(--fg-1)}:where(.landing-root) .t-mono{font-family:var(--font-mono);font-size:var(--fs-13)}:where(.landing-root) .t-num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}:where(.landing-root) .t-strong{font-weight:700}:where(.landing-root) .t-fg-1{color:var(--fg-1)}:where(.landing-root) .t-fg-2{color:var(--fg-2)}:where(.landing-root) .t-fg-3{color:var(--fg-3)}:where(.landing-root) .t-teal{color:var(--brand-teal-600)}:where(.landing-root) *,:where(.landing-root) :before,:where(.landing-root) :after{box-sizing:border-box}html:has(.landing-root){scroll-behavior:smooth}:where(.landing-root){-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;background:var(--bg-canvas);color:var(--fg-1);font-family:var(--font-sans);font-size:var(--fs-16);line-height:var(--lh-normal);margin:0;overflow-x:clip}:where(.landing-root) ::selection{background:color-mix(in srgb, var(--brand-teal) 28%, transparent)}:where(.landing-root) a{color:inherit;text-decoration:none}:where(.landing-root) img{max-width:100%;display:block}:where(.landing-root) button{font-family:inherit}:where(.landing-root) .wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}:where(.landing-root) .wrap-narrow{max-width:940px}:where(.landing-root) section{position:relative}:where(.landing-root) .eyebrow{font-size:var(--fs-12);letter-spacing:var(--tracking-caps);text-transform:uppercase;color:var(--brand-teal-600);align-items:center;gap:8px;font-weight:800;display:inline-flex}:where(.landing-root) .eyebrow:before{content:"";background:var(--brand-teal);border-radius:2px;width:18px;height:2px;display:inline-block}:where(.landing-root) .eyebrow.on-navy{color:var(--brand-teal-400)}:where(.landing-root) .eyebrow.center{justify-content:center}:where(.landing-root) .display{font-family:var(--font-display);letter-spacing:var(--tracking-tight);font-weight:800;line-height:1.04}:where(.landing-root) .lede{color:var(--fg-2);font-size:var(--fs-20);line-height:var(--lh-relaxed)}:where(.landing-root) .btn{font-weight:700;font-size:var(--fs-15);border-radius:var(--radius-md);cursor:pointer;transition:transform var(--duration-fast) var(--ease-out), background var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out);white-space:nowrap;border:1px solid #0000;justify-content:center;align-items:center;gap:9px;padding:13px 22px;line-height:1;display:inline-flex}:where(.landing-root) .btn:active{transform:scale(.97)}:where(.landing-root) .btn-primary{background:var(--brand-teal);color:#fff;box-shadow:var(--shadow-teal-glow)}:where(.landing-root) .btn-primary:hover{background:var(--brand-teal-500);transform:translateY(-1px);box-shadow:0 10px 30px #14bba66b}:where(.landing-root) .btn-navy{background:var(--brand-navy);color:#fff}:where(.landing-root) .btn-navy:hover{background:var(--brand-navy-700);transform:translateY(-1px)}:where(.landing-root) .btn-ghost{color:var(--fg-1);border-color:var(--border-default);background:0 0}:where(.landing-root) .btn-ghost:hover{background:var(--bg-sunken);border-color:var(--border-strong)}:where(.landing-root) .btn-ghost.on-navy{color:#fff;border-color:#ffffff3d}:where(.landing-root) .btn-ghost.on-navy:hover{background:#ffffff14;border-color:#fff6}:where(.landing-root) .btn-lg{font-size:var(--fs-16);border-radius:var(--radius-md);padding:16px 28px}:where(.landing-root) .btn .arr{transition:transform var(--duration-base) var(--ease-out)}:where(.landing-root) .btn:hover .arr{transform:translate(3px)}:where(.landing-root) .contact-fab{display:none}:where(.landing-root) .logo{align-items:center;display:inline-flex}:where(.landing-root) .logo-img{width:auto;height:30px;display:block}:where(.landing-root) .on-navy .logo-img{filter:brightness(0)invert()}:where(.landing-root) [data-reveal]{transition:opacity .8s var(--ease-out), transform .85s var(--ease-out);transition-delay:var(--rd,0s);will-change:opacity, transform}:where(.landing-root) [data-reveal][data-pending]{opacity:0;transform:translateY(44px)}:where(.landing-root) [data-reveal][data-in]{opacity:1;transform:none}:where(.landing-root) [data-reveal=fade][data-pending]{transform:none}:where(.landing-root) [data-reveal=scale][data-pending]{transform:translateY(40px)scale(.9)}:where(.landing-root) [data-reveal=left][data-pending]{transform:translate(-80px)rotate(-1.6deg)}:where(.landing-root) [data-reveal=right][data-pending]{transform:translate(80px)rotate(1.6deg)}@media (max-width:767px){:where(.landing-root) [data-reveal=left][data-pending],:where(.landing-root) [data-reveal=right][data-pending]{transform:translateY(44px)}}:where(.landing-root) .hero [data-reveal]{opacity:1;animation:heroRise .75s var(--ease-out) both;animation-delay:var(--rd,0s);transition:none;transform:none}@keyframes heroRise{0%{opacity:0;transform:translateY(28px)}to{opacity:1;transform:none}}@media (prefers-reduced-motion:reduce){:where(.landing-root) .hero [data-reveal]{animation:none}html:has(.landing-root){scroll-behavior:auto}:where(.landing-root) [data-reveal]{opacity:1!important;transition:none!important;transform:none!important}}:where(.landing-root) .card{background:var(--bg-canvas);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}:where(.landing-root) .chip{border-radius:var(--radius-pill);background:var(--bg-sunken);color:var(--fg-2);align-items:center;gap:6px;padding:4px 10px;font-size:12px;font-weight:600;display:inline-flex}:where(.landing-root) .chip-dot{border-radius:50%;width:6px;height:6px}:where(.landing-root) .subj-math{background:var(--subject-math-bg);color:var(--subject-math)}:where(.landing-root) .subj-rw{background:var(--subject-rw-bg);color:var(--subject-rw)}:where(.landing-root) .tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}:where(.landing-root) .mono{font-family:var(--font-mono)}:where(.landing-root) .hero{padding:64px 0 56px;position:relative;overflow:hidden}:where(.landing-root) .hero-grid{grid-template-columns:1.05fr .95fr;align-items:center;gap:56px;display:grid}:where(.landing-root) .hero.layout-centered .hero-grid{text-align:center;grid-template-columns:1fr;justify-items:center;gap:40px}:where(.landing-root) .hero.layout-centered .hero-copy{max-width:760px}:where(.landing-root) .hero.layout-centered .hero-cta,:where(.landing-root) .hero.layout-centered .hero-proof{justify-content:center}:where(.landing-root) .hero.layout-centered .hero-visual{width:100%;max-width:880px}:where(.landing-root) .hero-badge{border-radius:var(--radius-pill);background:var(--bg-canvas);border:1px solid var(--border-subtle);box-shadow:var(--shadow-xs);color:var(--fg-2);align-items:center;gap:9px;margin-bottom:22px;padding:7px 7px 7px 14px;font-size:13px;font-weight:600;display:inline-flex}:where(.landing-root) .hero-badge b{color:var(--fg-1);font-weight:700}:where(.landing-root) .hero-badge .tag{white-space:nowrap;letter-spacing:.04em;text-transform:uppercase;background:var(--brand-teal-50);color:var(--brand-teal-600);border-radius:var(--radius-pill);flex-shrink:0;align-items:center;gap:4px;padding:4px 9px;font-size:11px;font-weight:800;display:inline-flex}:where(.landing-root) .hero h1{font-family:var(--font-display);letter-spacing:-.03em;color:var(--brand-navy);margin:0 0 22px;font-size:clamp(40px,5.4vw,66px);font-weight:800;line-height:1.02}:where(.landing-root) .hero h1 .accent{color:var(--brand-teal-600);white-space:nowrap;background:linear-gradient(#0000 64%,#14bba633 64%);position:relative}:where(.landing-root) .hero h1 .accent .uline{z-index:-1;height:10px;position:absolute;bottom:2px;left:0;right:0}:where(.landing-root) .hero-sub{color:var(--fg-2);max-width:540px;margin:0 0 30px;font-size:clamp(17px,1.5vw,20px);line-height:1.55}:where(.landing-root) .hero.layout-centered .hero-sub{margin-left:auto;margin-right:auto}:where(.landing-root) .hero-cta{flex-wrap:wrap;align-items:center;gap:14px;display:flex}:where(.landing-root) .hero-proof{flex-wrap:wrap;align-items:center;gap:26px;margin-top:34px;display:flex}:where(.landing-root) .hero-proof .item{flex-direction:column;gap:3px;display:flex}:where(.landing-root) .hero-proof .num{font-family:var(--font-display);color:var(--brand-navy);letter-spacing:-.02em;font-size:26px;font-weight:800}:where(.landing-root) .hero-proof .lbl{color:var(--fg-3);max-width:130px;font-size:12.5px;font-weight:500;line-height:1.3}:where(.landing-root) .hero-proof .sep{background:var(--border-subtle);width:1px;height:34px}:where(.landing-root) .hero-glow{pointer-events:none;z-index:0;filter:blur(8px);background:radial-gradient(circle,#14bba629,#14bba600 62%);width:720px;height:720px;position:absolute;top:-220px;right:-180px}:where(.landing-root) .hero-glow.two{background:radial-gradient(circle,#0d1b3d0f,#0d1b3d00 60%);width:560px;height:560px;top:180px;left:-260px;right:auto}:where(.landing-root) .hero .wrap{z-index:1;position:relative}:where(.landing-root) .bg-navy{background:var(--brand-navy);color:#fff}:where(.landing-root) .bg-navy h1{color:#fff}:where(.landing-root) .bg-navy .hero-sub{color:#ffffffbd}:where(.landing-root) .bg-navy .hero-badge{color:#ffffffd1;background:#ffffff0f;border-color:#ffffff24}:where(.landing-root) .bg-navy .hero-badge b,:where(.landing-root) .bg-navy .hero-proof .num{color:#fff}:where(.landing-root) .bg-navy .hero-proof .lbl{color:#fff9}:where(.landing-root) .bg-navy .hero-proof .sep{background:#ffffff29}:where(.landing-root) .bg-navy .hero-glow{background:radial-gradient(circle,#14bba642,#14bba600 62%)}:where(.landing-root) .bg-navy h1 .accent{color:var(--brand-teal-400)}:where(.landing-root) .logoband{border-bottom:1px solid var(--border-subtle);padding:40px 0 52px}:where(.landing-root) .logoband-cap{text-align:center;color:var(--fg-3);letter-spacing:.01em;margin-bottom:26px;font-size:13px;font-weight:600}:where(.landing-root) .logoband-grid{grid-template-columns:repeat(6,1fr);gap:16px;display:grid}:where(.landing-root) .logo-slot-wrap{border-radius:var(--radius-md);background:var(--bg-app);border:1px dashed var(--border-default);height:76px;transition:border-color var(--duration-base), background var(--duration-base), transform var(--duration-base);justify-content:center;align-items:center;display:flex}:where(.landing-root) .logo-slot-wrap:hover{border-color:var(--brand-teal-400);transform:translateY(-2px)}:where(.landing-root) image-slot{width:100%;height:100%}:where(.landing-root) .sec{padding:92px 0}:where(.landing-root) .sec-head{max-width:680px;margin-bottom:52px}:where(.landing-root) .sec-head.center{text-align:center;margin-left:auto;margin-right:auto}:where(.landing-root) .sec-title{font-family:var(--font-display);letter-spacing:-.025em;color:var(--brand-navy);margin:16px 0 0;font-size:clamp(30px,3.6vw,46px);font-weight:800;line-height:1.06}:where(.landing-root) .sec-sub{font-size:var(--fs-18);color:var(--fg-2);margin-top:18px;line-height:1.6}:where(.landing-root) .bg-app{background:var(--bg-app)}:where(.landing-root) .bg-sunken-sec{background:var(--bg-sunken)}:where(.landing-root) .feat-grid{grid-template-columns:repeat(6,1fr);gap:22px;display:grid}:where(.landing-root) .feat{background:var(--bg-canvas);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out), border-color var(--duration-base);flex-direction:column;padding:26px;display:flex;position:relative;overflow:hidden}:where(.landing-root) .feat:hover{box-shadow:var(--shadow-md);border-color:var(--brand-teal-200);transform:translateY(-4px)}:where(.landing-root) .feat.span3{grid-column:span 3}:where(.landing-root) .feat.span2{grid-column:span 2}:where(.landing-root) .feat-ico{background:var(--brand-teal-50);width:46px;height:46px;color:var(--brand-teal-600);border-radius:12px;place-items:center;margin-bottom:18px;display:grid}:where(.landing-root) .feat-ico svg{width:24px;height:24px}:where(.landing-root) .feat h3{font-family:var(--font-display);letter-spacing:-.01em;color:var(--brand-navy);margin:0 0 8px;font-size:20px;font-weight:700}:where(.landing-root) .feat p{color:var(--fg-2);margin:0;font-size:14.5px;line-height:1.55}:where(.landing-root) .feat-visual{margin-top:20px}:where(.landing-root) .mini-bar{background:var(--ink-100);border-radius:999px;height:7px;overflow:hidden}:where(.landing-root) .mini-bar>i{background:var(--brand-teal);border-radius:999px;height:100%;display:block}:where(.landing-root) .mini-row{align-items:center;gap:10px;margin-bottom:9px;display:flex}:where(.landing-root) .mini-row .nm{color:var(--fg-2);flex:none;width:96px;font-size:12px}:where(.landing-root) .mini-row .pct{font-size:11px;font-family:var(--font-mono);color:var(--fg-3);text-align:right;flex:none;width:30px}:where(.landing-root) .orbs{flex-wrap:wrap;gap:7px;display:flex}:where(.landing-root) .orb{border-radius:50%;width:17px;height:17px}:where(.landing-root) .orb.r{background:var(--brand-teal)}:where(.landing-root) .orb.w{background:var(--danger)}:where(.landing-root) .orb.p{background:var(--review)}:where(.landing-root) .orb.u{background:var(--ink-200)}:where(.landing-root) .bubble{border-radius:14px;max-width:78%;padding:9px 13px;font-size:13px;line-height:1.4}:where(.landing-root) .bubble.in{background:var(--bg-sunken);color:var(--fg-1);border-bottom-left-radius:4px;align-self:flex-start}:where(.landing-root) .bubble.out{background:var(--brand-teal);color:var(--fg-on-teal);border-bottom-right-radius:4px;align-self:flex-end;font-weight:500}:where(.landing-root) .calc-keys{grid-template-columns:repeat(4,1fr);gap:6px;display:grid}:where(.landing-root) .calc-key{background:var(--bg-sunken);height:26px;font-size:11px;font-family:var(--font-mono);color:var(--fg-2);border-radius:6px;place-items:center;display:grid}:where(.landing-root) .calc-key.eq{background:var(--brand-navy);color:#fff}:where(.landing-root) .preview-stage{position:relative}:where(.landing-root) .qscreen{background:var(--bg-canvas);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);width:100%;overflow:hidden}:where(.landing-root) .qs-top{border-bottom:1px solid var(--border-subtle);background:var(--bg-canvas);align-items:center;gap:14px;padding:14px 20px;display:flex}:where(.landing-root) .qs-pos{color:var(--fg-1);font-size:13px;font-weight:700}:where(.landing-root) .qs-pos b{color:var(--brand-navy)}:where(.landing-root) .qs-timer{font-family:var(--font-mono);color:var(--fg-2);background:var(--bg-app);border:1px solid var(--border-subtle);border-radius:var(--radius-pill);align-items:center;gap:7px;padding:5px 11px;font-size:13px;font-weight:600;display:inline-flex}:where(.landing-root) .qs-timer .pulse{background:var(--brand-teal);width:7px;height:7px;animation:qpulse 2s var(--ease-in-out) infinite;border-radius:50%}@keyframes qpulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.7)}}:where(.landing-root) .qs-tools{gap:8px;margin-left:auto;display:flex}:where(.landing-root) .qs-tool{color:var(--fg-2);border:1px solid var(--border-subtle);border-radius:var(--radius-md);background:var(--bg-canvas);align-items:center;gap:6px;padding:6px 11px;font-size:12.5px;font-weight:600;display:inline-flex}:where(.landing-root) .qs-tool svg{width:15px;height:15px}:where(.landing-root) .qs-body{padding:24px 26px 26px}:where(.landing-root) .qs-meta{flex-wrap:wrap;gap:8px;margin-bottom:18px;display:flex}:where(.landing-root) .qs-diff{margin-left:auto}:where(.landing-root) .qs-stem{font-family:var(--font-serif);color:var(--fg-1);margin:0 0 20px;font-size:18px;line-height:1.62}:where(.landing-root) .qs-stem .eq{font-family:var(--font-mono);background:var(--bg-app);border-radius:5px;padding:1px 6px;font-weight:600}:where(.landing-root) .choice{border:1px solid var(--border-subtle);background:var(--bg-canvas);transition:all .35s var(--ease-out);border-radius:16px;align-items:center;gap:14px;margin-bottom:10px;padding:15px 18px;display:flex;position:relative}:where(.landing-root) .choice .key{border:2px solid var(--border-default);width:30px;height:30px;color:var(--fg-3);transition:all .3s var(--ease-out);background:0 0;border-radius:50%;flex:none;place-items:center;font-size:15px;font-weight:700;display:grid}:where(.landing-root) .choice .txt{color:var(--fg-2);font-size:15px;transition:color .3s}:where(.landing-root) .choice.sel{border-color:var(--brand-navy);background:var(--brand-teal-50)}:where(.landing-root) .choice.sel .key{border-color:var(--brand-navy);background:var(--brand-navy);color:#fff}:where(.landing-root) .choice.sel .txt{color:var(--fg-1);font-weight:500}:where(.landing-root) .choice.correct{border-color:var(--brand-teal);background:var(--success-bg)}:where(.landing-root) .choice.correct .key{border-color:var(--brand-teal-600);background:var(--brand-teal-600);color:#fff}:where(.landing-root) .choice.correct .txt{color:var(--brand-teal-600);font-weight:600}:where(.landing-root) .choice.wrong{border-color:var(--danger);background:var(--danger-bg)}:where(.landing-root) .choice.wrong .key{border-color:var(--danger);background:var(--danger);color:#fff}:where(.landing-root) .choice.wrong .txt{color:var(--danger-emphasis)}:where(.landing-root) .choice.dim{opacity:.5}:where(.landing-root) .choice .tick{opacity:0;transition:all .3s var(--ease-bounce);margin-left:auto;transform:scale(.6)}:where(.landing-root) .choice.correct .tick{opacity:1;transform:scale(1)}:where(.landing-root) .choice .tick svg{width:20px;height:20px;display:block}:where(.landing-root) .qs-explain{opacity:0;max-height:158px;transition:opacity .45s var(--ease-out), background .45s var(--ease-out), border-color .45s var(--ease-out);background:0 0;border:1px solid #0000;border-radius:14px;margin-top:16px;overflow:hidden}:where(.landing-root) .qs-explain.show{opacity:1;border-color:var(--brand-teal-200);background:var(--brand-teal-soft,#f7fbfb)}:where(.landing-root) .hero-free .qs-explain{max-height:0;transition:max-height .55s var(--ease-out), opacity .4s var(--ease-out), margin-top .4s var(--ease-out), background .45s, border-color .45s;margin-top:0}:where(.landing-root) .hero-free .qs-explain.show{max-height:220px;margin-top:16px}:where(.landing-root) .qs-explain .inner{padding:16px 18px}:where(.landing-root) .qs-explain .lab{letter-spacing:.08em;text-transform:uppercase;color:var(--brand-teal-600);align-items:center;gap:8px;font-size:11px;font-weight:800;display:flex}:where(.landing-root) .qs-explain .ans{border:2px solid var(--brand-teal-600);background:var(--brand-teal-50);min-width:34px;height:30px;color:var(--brand-teal-600);border-radius:8px;place-items:center;padding:0 8px;font-size:15px;font-weight:800;display:inline-grid}:where(.landing-root) .qs-explain p{color:var(--fg-2);margin:10px 0 0;font-size:14px;line-height:1.55}:where(.landing-root) .qs-nav{border-top:1px solid var(--border-subtle);background:var(--bg-app);align-items:center;gap:8px;padding:14px 20px;display:flex}:where(.landing-root) .qs-nav .label{color:var(--fg-3);margin-right:4px;font-size:12px;font-weight:600}:where(.landing-root) .qnav-orb{width:22px;height:22px;font-size:11px;font-weight:700;font-family:var(--font-mono);border-radius:7px;place-items:center;display:grid}:where(.landing-root) .qnav-orb.r{background:var(--brand-teal);color:#fff}:where(.landing-root) .qnav-orb.w{background:var(--danger);color:#fff}:where(.landing-root) .qnav-orb.p{background:var(--review);color:#fff}:where(.landing-root) .qnav-orb.u{background:var(--bg-canvas);color:var(--fg-3);border:1px solid var(--border-default)}:where(.landing-root) .qnav-orb.cur{outline:2px solid var(--brand-navy);outline-offset:2px}:where(.landing-root) .preview-float{background:var(--bg-canvas);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);z-index:3;animation:floaty 5s var(--ease-in-out) infinite;padding:14px 16px;position:absolute}@keyframes floaty{0%,to{transform:translateY(0)}50%{transform:translateY(-9px)}}:where(.landing-root) .preview-float.a{animation-delay:0s;top:-26px;right:-30px}:where(.landing-root) .preview-float.b{animation-delay:1.4s;bottom:-28px;left:-34px}:where(.landing-root) .loop-grid{grid-template-columns:repeat(4,1fr);gap:18px;margin-top:12px;display:grid}:where(.landing-root) .loop-step{padding-top:26px;position:relative}:where(.landing-root) .loop-step .n{font-family:var(--font-mono);color:var(--brand-teal-600);background:var(--brand-teal-50);border-radius:9px;place-items:center;width:30px;height:30px;margin-bottom:14px;font-size:12px;font-weight:700;display:grid}:where(.landing-root) .loop-step h4{font-family:var(--font-display);color:var(--brand-navy);margin:0 0 7px;font-size:17px;font-weight:700}:where(.landing-root) .loop-step p{color:var(--fg-2);margin:0;font-size:14px;line-height:1.5}:where(.landing-root) .loop-step .line{background:repeating-linear-gradient(90deg, var(--border-default) 0 5px, transparent 5px 11px);height:2px;position:absolute;top:41px;left:44px;right:-9px}:where(.landing-root) .loop-step:last-child .line{display:none}:where(.landing-root) .tutor-split{grid-template-columns:1fr 1fr;align-items:center;gap:56px;display:grid}:where(.landing-root) .tutor-list{flex-direction:column;gap:18px;margin-top:28px;display:flex}:where(.landing-root) .tutor-item{align-items:flex-start;gap:14px;display:flex}:where(.landing-root) .tutor-item .ck{background:var(--brand-teal-50);width:26px;height:26px;color:var(--brand-teal-600);border-radius:8px;flex:none;place-items:center;margin-top:1px;display:grid}:where(.landing-root) .tutor-item .ck svg{width:16px;height:16px}:where(.landing-root) .tutor-item h4{color:var(--brand-navy);margin:0 0 3px;font-size:16px;font-weight:700}:where(.landing-root) .tutor-item p{color:var(--fg-2);margin:0;font-size:14px;line-height:1.5}:where(.landing-root) .bg-navy .sec-title,:where(.landing-root) .bg-navy .loop-step h4,:where(.landing-root) .bg-navy .tutor-item h4{color:#fff}:where(.landing-root) .bg-navy .sec-sub,:where(.landing-root) .bg-navy .loop-step p,:where(.landing-root) .bg-navy .tutor-item p{color:#ffffffb8}:where(.landing-root) .bg-navy .loop-step .n,:where(.landing-root) .bg-navy .tutor-item .ck{color:var(--brand-teal-400);background:#14bba629}:where(.landing-root) .bg-navy .card{background:#ffffff0d;border-color:#ffffff1f}:where(.landing-root) .dashmock{background:var(--bg-canvas);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);overflow:hidden}:where(.landing-root) .dashmock .dm-top{border-bottom:1px solid var(--border-subtle);align-items:center;gap:10px;padding:13px 18px;display:flex}:where(.landing-root) .dashmock .dm-avatar{background:var(--brand-navy);color:#fff;border-radius:9px;place-items:center;width:30px;height:30px;font-size:12px;font-weight:700;display:grid}:where(.landing-root) .dashmock .dm-body{flex-direction:column;gap:14px;padding:18px;display:flex}:where(.landing-root) .quote-grid{grid-template-columns:repeat(3,1fr);gap:22px;display:grid}:where(.landing-root) .quote{background:var(--bg-canvas);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base);flex-direction:column;padding:28px;display:flex}:where(.landing-root) .quote:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}:where(.landing-root) .quote .mark{font-family:var(--font-display);color:var(--brand-teal);height:22px;font-size:44px;line-height:.5}:where(.landing-root) .quote .role-tag{letter-spacing:.07em;text-transform:uppercase;color:var(--brand-teal-600);margin-bottom:14px;font-size:11px;font-weight:800}:where(.landing-root) .quote blockquote{color:var(--fg-1);flex:1;margin:0;font-size:16px;font-weight:500;line-height:1.6}:where(.landing-root) .quote .who{border-top:1px solid var(--border-subtle);align-items:center;gap:12px;margin-top:22px;padding-top:18px;display:flex}:where(.landing-root) .quote .ava{color:#fff;border-radius:11px;flex:none;place-items:center;width:40px;height:40px;font-size:14px;font-weight:700;display:grid}:where(.landing-root) .quote .who .nm{color:var(--brand-navy);font-size:14px;font-weight:700}:where(.landing-root) .quote .who .meta{color:var(--fg-3);font-size:12.5px}:where(.landing-root) .stat-band{grid-template-columns:repeat(3,1fr);gap:24px;margin-top:56px;display:grid}:where(.landing-root) .stat{text-align:center}:where(.landing-root) .stat .big{font-family:var(--font-display);letter-spacing:-.03em;color:var(--brand-navy);background:linear-gradient(180deg, var(--brand-navy), var(--brand-navy-500));-webkit-background-clip:text;background-clip:text;font-size:clamp(38px,4.4vw,54px);font-weight:800}:where(.landing-root) .stat .cap{color:var(--fg-2);margin-top:6px;font-size:14px}:where(.landing-root) .bg-navy .stat .big{color:#fff;background:linear-gradient(180deg, #fff, var(--brand-teal-400));-webkit-background-clip:text;background-clip:text}:where(.landing-root) .bg-navy .stat .cap{color:#ffffffa8}:where(.landing-root) .bg-navy .quote{background:#ffffff0d;border-color:#ffffff1f}:where(.landing-root) .bg-navy .quote blockquote,:where(.landing-root) .bg-navy .quote .who .nm{color:#fff}:where(.landing-root) .bg-navy .quote .who{border-top-color:#ffffff1f}:where(.landing-root) .cta{background:var(--brand-navy);border-radius:var(--radius-2xl);text-align:center;padding:72px 56px;position:relative;overflow:hidden}:where(.landing-root) .cta-glow{pointer-events:none;background:radial-gradient(circle,#14bba647,#14bba600 60%);width:700px;height:700px;position:absolute;top:40%;left:50%;transform:translate(-50%,-50%)}:where(.landing-root) .cta h2{font-family:var(--font-display);letter-spacing:-.03em;color:#fff;margin:0 0 16px;font-size:clamp(32px,4.2vw,52px);font-weight:800;line-height:1.04;position:relative}:where(.landing-root) .cta p{font-size:var(--fs-18);color:#ffffffbd;max-width:560px;margin:0 auto 30px;line-height:1.55;position:relative}:where(.landing-root) .cta .hero-cta{justify-content:center;position:relative}@media (max-width:1000px){:where(.landing-root) .hero-grid{grid-template-columns:1fr;gap:40px}:where(.landing-root) .hero-visual{max-width:620px}:where(.landing-root) .feat-grid{grid-template-columns:repeat(4,1fr)}:where(.landing-root) .feat.span3{grid-column:span 4}:where(.landing-root) .feat.span2{grid-column:span 2}:where(.landing-root) .tutor-split{grid-template-columns:1fr;gap:36px}:where(.landing-root) .quote-grid{grid-template-columns:1fr}:where(.landing-root) .loop-grid{grid-template-columns:repeat(2,1fr);row-gap:30px}:where(.landing-root) .loop-step .line{display:none}:where(.landing-root) .logoband-grid{grid-template-columns:repeat(3,1fr)}}@media (max-width:680px){:where(.landing-root) .wrap{padding:0 20px}:where(.landing-root) .contact-fab{z-index:1500;border-radius:var(--radius-pill);color:#fff;cursor:pointer;background:#25d366;border:none;justify-content:center;align-items:center;width:56px;height:56px;display:inline-flex;position:fixed;bottom:18px;right:18px;box-shadow:0 8px 24px #25d36666}:where(.landing-root) .sec{padding:64px 0}:where(.landing-root) .hero{padding:40px 0}:where(.landing-root) .feat-grid{grid-template-columns:1fr}:where(.landing-root) .feat.span3,:where(.landing-root) .feat.span2{grid-column:span 1}:where(.landing-root) .stat-band{grid-template-columns:1fr;gap:32px}:where(.landing-root) .preview-float{display:none}:where(.landing-root) .cta{padding:48px 24px}:where(.landing-root) .logoband-grid{grid-template-columns:repeat(2,1fr)}}:where(.landing-root) .hero-pillars{flex-wrap:wrap;align-items:center;gap:12px;margin-top:34px;display:flex}:where(.landing-root) .hp-item{border-radius:var(--radius-pill);background:var(--bg-canvas);border:1px solid var(--border-subtle);box-shadow:var(--shadow-xs);color:var(--fg-1);align-items:center;gap:9px;padding:8px 14px 8px 9px;font-size:13px;font-weight:650;display:inline-flex}:where(.landing-root) .hp-ic{background:var(--brand-teal-50);width:26px;height:26px;color:var(--brand-teal-600);border-radius:8px;flex:none;place-items:center;display:grid}:where(.landing-root) .bg-navy .hp-item{color:#fff;background:#ffffff0f;border-color:#ffffff24}:where(.landing-root) .bg-navy .hp-ic{color:var(--brand-teal-400);background:#14bba62e}:where(.landing-root) .schoolband{border-top:1px solid var(--border-subtle);border-bottom:1px solid var(--border-subtle);background:var(--bg-app);padding:46px 0 50px}:where(.landing-root) .sb-cap{text-align:center;letter-spacing:var(--tracking-caps);text-transform:uppercase;color:var(--brand-teal-600);margin:0 0 26px;font-size:12px;font-weight:800}:where(.landing-root) .sb-row{flex-wrap:wrap;justify-content:center;align-items:stretch;gap:14px;display:flex}:where(.landing-root) .school{border-radius:var(--radius-md);background:var(--bg-canvas);border:1px solid var(--border-subtle);box-shadow:var(--shadow-xs);transition:transform var(--duration-base) var(--ease-out), border-color var(--duration-base), box-shadow var(--duration-base);align-items:center;gap:11px;padding:11px 18px 11px 12px;display:inline-flex}:where(.landing-root) .school:hover{border-color:var(--brand-teal-200);box-shadow:var(--shadow-sm);transform:translateY(-2px)}:where(.landing-root) .school-abbr{background:var(--brand-navy);color:#fff;width:40px;height:40px;font-family:var(--font-display);letter-spacing:-.02em;border-radius:9px;flex:none;place-items:center;font-size:13px;font-weight:800;display:grid}:where(.landing-root) .school-name{color:var(--brand-navy);max-width:150px;font-size:14px;font-weight:700;line-height:1.2}:where(.landing-root) .sb-sub{text-align:center;color:var(--fg-3);margin:26px 0 0;font-size:14px}:where(.landing-root) .pillar{padding:104px 0}:where(.landing-root) .pillar-row{grid-template-columns:1fr 1.08fr;align-items:center;gap:64px;display:grid}:where(.landing-root) .pillar-row.reverse{grid-template-columns:1.08fr 1fr}:where(.landing-root) .pillar-row.reverse .pillar-copy{order:2}:where(.landing-root) .pillar-row.reverse .pillar-visual{order:1}:where(.landing-root) .pill-num{font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--brand-teal-600);align-items:center;gap:9px;font-size:12px;font-weight:700;display:inline-flex}:where(.landing-root) .pill-num:before{content:"";background:var(--brand-teal);border-radius:2px;width:22px;height:2px}:where(.landing-root) .pillar-title{font-family:var(--font-display);letter-spacing:-.03em;color:var(--brand-navy);margin:18px 0 0;font-size:clamp(32px,3.8vw,50px);font-weight:800;line-height:1.04}:where(.landing-root) .pillar-lede{font-size:var(--fs-18);color:var(--fg-2);max-width:480px;margin:20px 0 0;line-height:1.6}:where(.landing-root) .pillar-points{flex-direction:column;gap:13px;margin:28px 0 0;padding:0;list-style:none;display:flex}:where(.landing-root) .pillar-points li{color:var(--fg-1);align-items:flex-start;gap:12px;font-size:15px;font-weight:550;line-height:1.45;display:flex}:where(.landing-root) .pp-ck{background:var(--brand-teal-50);width:24px;height:24px;color:var(--brand-teal-600);border-radius:7px;flex:none;place-items:center;margin-top:1px;display:grid}:where(.landing-root) .tutor-points{grid-template-columns:1fr 1fr;gap:22px 26px;margin-top:30px;display:grid}:where(.landing-root) .tp{align-items:flex-start;gap:13px;display:flex}:where(.landing-root) .tp-ic{background:var(--brand-teal-50);width:38px;height:38px;color:var(--brand-teal-600);border-radius:11px;flex:none;place-items:center;display:grid}:where(.landing-root) .tp h4{font-family:var(--font-display);color:var(--brand-navy);margin:1px 0 4px;font-size:16px;font-weight:700}:where(.landing-root) .tp p{color:var(--fg-2);margin:0;font-size:13.5px;line-height:1.5}:where(.landing-root) .pillar.bg-navy .pillar-title,:where(.landing-root) .pillar.bg-navy .tp h4{color:#fff}:where(.landing-root) .pillar.bg-navy .pillar-lede,:where(.landing-root) .pillar.bg-navy .pillar-points li,:where(.landing-root) .pillar.bg-navy .tp p{color:#ffffffbd}:where(.landing-root) .pillar.bg-navy .pp-ck,:where(.landing-root) .pillar.bg-navy .tp-ic{color:var(--brand-teal-400);background:#14bba62e}:where(.landing-root) .solve-visual{position:relative}:where(.landing-root) .sv-qcard{z-index:1;padding:22px 24px 26px;position:relative}:where(.landing-root) .sv-meta{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:16px;display:flex}:where(.landing-root) .sv-stem{font-family:var(--font-serif);color:var(--fg-1);margin:0;font-size:18px;line-height:1.6}:where(.landing-root) .sv-stem .eq{font-family:var(--font-mono);background:var(--bg-app);border-radius:5px;padding:1px 6px;font-size:15px;font-weight:600}:where(.landing-root) .sv-calc-chip{color:var(--brand-teal-600);background:var(--brand-teal-50);border:1px solid var(--brand-teal-100);border-radius:var(--radius-pill);white-space:nowrap;align-items:center;gap:6px;margin-left:auto;padding:5px 11px;font-size:12px;font-weight:700;display:inline-flex}:where(.landing-root) .qs-tool.active{background:var(--brand-teal-50);border-color:var(--brand-teal-200);color:var(--brand-teal-600)}:where(.landing-root) .calcpane{z-index:2;background:var(--bg-canvas);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);width:304px;box-shadow:var(--shadow-lg);animation:floaty 6s var(--ease-in-out) infinite;margin:-18px 0 0 auto;position:relative;overflow:hidden}:where(.landing-root) .cp-head{background:var(--brand-navy);align-items:center;gap:9px;padding:9px 13px;display:flex}:where(.landing-root) .cp-dots{gap:5px;display:inline-flex}:where(.landing-root) .cp-dots i{background:#ffffff47;border-radius:50%;width:8px;height:8px}:where(.landing-root) .cp-dots i:first-child{background:var(--brand-teal)}:where(.landing-root) .cp-title{color:#ffffffd9;letter-spacing:.01em;font-size:12px;font-weight:600}:where(.landing-root) .cp-body{grid-template-columns:1.05fr .95fr;display:grid}:where(.landing-root) .cp-exprs{border-right:1px solid var(--border-subtle);flex-direction:column;gap:8px;padding:10px 9px;display:flex}:where(.landing-root) .cp-expr{align-items:center;gap:8px;font-size:11.5px;display:flex}:where(.landing-root) .cp-expr .mono{font-family:var(--font-mono);color:var(--brand-navy);white-space:nowrap;font-weight:600}:where(.landing-root) .cp-i{background:var(--bg-app);width:18px;height:18px;color:var(--fg-3);border-radius:5px;flex:none;place-items:center;font-size:10px;font-weight:700;display:grid}:where(.landing-root) .cp-expr.add{color:var(--fg-4)}:where(.landing-root) .cp-graph{background:var(--bg-canvas);min-height:132px}:where(.landing-root) .cp-graph svg{width:100%;height:100%;display:block}:where(.landing-root) .texplain,:where(.landing-root) .progdash{background:var(--bg-canvas);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);max-width:520px;padding:24px 26px}:where(.landing-root) .pd-head{justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px;display:flex}:where(.landing-root) .pd-eyebrow{letter-spacing:var(--tracking-caps);text-transform:uppercase;color:var(--brand-teal-600);font-size:11px;font-weight:800}:where(.landing-root) .pd-overall{color:var(--fg-2);font-size:13.5px}:where(.landing-root) .pd-overall b{font-family:var(--font-mono);color:var(--brand-navy);margin-left:3px;font-weight:800}:where(.landing-root) .pd-bars{flex-direction:column;gap:11px;display:flex}:where(.landing-root) .progdash .mini-row .nm{width:130px;color:var(--fg-1);font-size:13px;font-weight:550}:where(.landing-root) .progdash .mini-bar{height:8px}:where(.landing-root) .progdash .mini-bar>i{transition:width .9s var(--ease-out)}:where(.landing-root) .progdash .mini-row .pct{width:36px;font-size:12px}:where(.landing-root) .pd-weak{background:var(--brand-teal-50);border:1px solid var(--brand-teal-100);color:var(--brand-navy);border-radius:12px;align-items:center;gap:11px;margin-top:18px;padding:12px 14px;font-size:13.5px;line-height:1.4;display:flex}:where(.landing-root) .pd-weak b{font-weight:700}:where(.landing-root) .pd-weak-ic{background:var(--brand-teal);width:28px;height:28px;color:var(--fg-on-teal);border-radius:8px;flex:none;place-items:center;display:grid}:where(.landing-root) .pd-mistakes{border-top:1px solid var(--border-subtle);margin-top:18px;padding-top:18px}:where(.landing-root) .pd-m-head{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}:where(.landing-root) .pd-m-lab{color:var(--brand-navy);font-size:13px;font-weight:700}:where(.landing-root) .pd-m-count{font-size:12px;font-weight:800;font-family:var(--font-mono);color:#fff;background:var(--danger);border-radius:999px;padding:2px 9px}:where(.landing-root) .pd-chips{flex-wrap:wrap;gap:8px;display:flex}:where(.landing-root) .pd-chip{color:var(--fg-1);background:var(--bg-app);border:1px solid var(--border-subtle);white-space:nowrap;border-radius:999px;align-items:center;gap:7px;padding:6px 11px;font-size:12.5px;font-weight:600;display:inline-flex}:where(.landing-root) .pd-chip b{color:var(--fg-3);font-weight:700}:where(.landing-root) .pd-dot{border-radius:50%;flex:none;width:8px;height:8px}:where(.landing-root) .scorecard{background:var(--brand-navy);border:1px solid var(--brand-navy-700);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);color:#fff;max-width:460px;padding:26px 28px;position:relative;overflow:hidden}:where(.landing-root) .sc-glow{pointer-events:none;background:radial-gradient(circle,#14bba64d,#14bba600 62%);width:360px;height:360px;position:absolute;top:-150px;right:-120px}:where(.landing-root) .sc-top{justify-content:space-between;align-items:flex-start;gap:12px;display:flex;position:relative}:where(.landing-root) .sc-lab{letter-spacing:var(--tracking-caps);text-transform:uppercase;color:var(--brand-teal-400);margin-bottom:7px;font-size:11px;font-weight:800}:where(.landing-root) .sc-big{font-family:var(--font-display);letter-spacing:-.03em;color:#fff;font-size:54px;font-weight:800;line-height:1}:where(.landing-root) .sc-goal{color:#ffffffb8;white-space:nowrap;background:#ffffff14;border:1px solid #ffffff24;border-radius:999px;flex:none;padding:6px 12px;font-size:12.5px;font-weight:600}:where(.landing-root) .sc-goal b{color:#fff;font-family:var(--font-mono);margin-left:3px}:where(.landing-root) .sc-track{background:#ffffff1f;border-radius:999px;height:8px;margin:40px 0 24px;position:relative}:where(.landing-root) .sc-track-fill{background:linear-gradient(90deg, var(--brand-teal-600), var(--brand-teal));box-shadow:var(--shadow-teal-glow);border-radius:999px;position:absolute;top:0;bottom:0;left:0}:where(.landing-root) .sc-track-goal{background:#ffffff73;border-radius:2px;width:2px;height:18px;position:absolute;top:50%;transform:translate(-50%,-50%)}:where(.landing-root) .sc-flag{clip-path:polygon(0 0,100% 0,100% 70%,50% 100%,0 70%);background:#ffffff8c;width:12px;height:9px;position:absolute;top:-7px;left:1px}:where(.landing-root) .sc-tick{width:7px;height:7px;transition:background var(--duration-base) var(--ease-out), box-shadow var(--duration-base);background:#ffffff38;border-radius:50%;margin-left:-3.5px;position:absolute;top:50%;transform:translateY(-50%)}:where(.landing-root) .sc-tick.on{background:#fff;box-shadow:0 0 0 3px #14bba64d}:where(.landing-root) .sc-thumb{border:3px solid var(--brand-teal);z-index:3;background:#fff;border-radius:50%;width:20px;height:20px;margin-left:-10px;position:absolute;top:50%;left:0;transform:translateY(-50%);box-shadow:0 0 0 5px #14bba62e,0 6px 16px #14bba68c}:where(.landing-root) .scorecard.is-done .sc-thumb{animation:sc-land .52s var(--ease-bounce)}@keyframes sc-land{0%{transform:translateY(-50%)scale(1)}40%{transform:translateY(-50%)scale(1.32)}to{transform:translateY(-50%)scale(1)}}:where(.landing-root) .sc-thumb-val{white-space:nowrap;font-family:var(--font-mono);color:var(--fg-on-teal);background:var(--brand-teal);border-radius:7px;padding:3px 8px;font-size:12px;font-weight:700;position:absolute;bottom:calc(100% + 9px);left:50%;transform:translate(-50%);box-shadow:0 4px 12px #14bba673}:where(.landing-root) .sc-thumb-val:after{content:"";border:5px solid #0000;border-top-color:var(--brand-teal);position:absolute;top:100%;left:50%;transform:translate(-50%)}:where(.landing-root) .sc-tests-lab{letter-spacing:.06em;text-transform:uppercase;color:#ffffff80;margin-bottom:13px;font-size:11px;font-weight:800}:where(.landing-root) .sc-test{opacity:.5;transition:opacity var(--duration-base) var(--ease-out);align-items:center;gap:12px;margin-bottom:10px;display:flex}:where(.landing-root) .sc-test.reached{opacity:1}:where(.landing-root) .sc-test-n{color:#ffffffb3;flex:none;width:50px;font-size:12.5px}:where(.landing-root) .sc-test-bar{background:#ffffff1a;border-radius:999px;flex:1;height:7px;overflow:hidden}:where(.landing-root) .sc-test-bar>i{background:linear-gradient(90deg, var(--brand-teal-600), var(--brand-teal));height:100%;transition:width .55s var(--ease-out);border-radius:999px;display:block}:where(.landing-root) .sc-test-s{text-align:right;width:44px;font-size:12.5px;font-weight:700;font-family:var(--font-mono);color:#fff;transition:color var(--duration-base);flex:none}:where(.landing-root) .sc-test:not(.reached) .sc-test-s{color:#fff6}:where(.landing-root) .sc-foot{color:#fffc;border-top:1px solid #ffffff1f;align-items:center;gap:8px;margin-top:16px;padding-top:16px;font-size:13px;display:flex}:where(.landing-root) .sc-foot svg{color:var(--brand-teal-400);flex:none}:where(.landing-root) .testi{padding:104px 0;overflow:hidden}:where(.landing-root) .testi-head{text-align:center;max-width:680px;margin:0 auto}:where(.landing-root) .testi-title{font-family:var(--font-display);letter-spacing:-.03em;color:var(--brand-navy);margin:16px 0 0;font-size:clamp(30px,3.6vw,46px);font-weight:800;line-height:1.05}:where(.landing-root) .testi-lede{font-size:var(--fs-18);color:var(--fg-2);max-width:520px;margin:16px auto 0;line-height:1.6}:where(.landing-root) .testi-rows{flex-direction:column;gap:22px;margin-top:52px;display:flex;-webkit-mask-image:linear-gradient(90deg,#0000,#000 9% 91%,#0000);mask-image:linear-gradient(90deg,#0000,#000 9% 91%,#0000)}:where(.landing-root) .testi-cta{justify-content:center;margin-top:40px;display:flex}:where(.landing-root) .tmarquee{overflow:hidden}:where(.landing-root) .tmarquee-track{will-change:transform;gap:22px;width:max-content;animation:46s linear infinite testi-scroll;display:flex}:where(.landing-root) .tmarquee-track.rev{animation-duration:54s;animation-direction:reverse}@keyframes testi-scroll{0%{transform:translate(0)}to{transform:translate(-50%)}}@media (prefers-reduced-motion:reduce){:where(.landing-root) .tmarquee-track{animation:none}}:where(.landing-root) .tcard{box-sizing:border-box;background:var(--bg-canvas);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);width:366px;box-shadow:var(--shadow-sm);transition:transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base), border-color var(--duration-base);flex-direction:column;flex:none;margin:0;padding:22px 24px;display:flex}:where(.landing-root) .tcard:hover{box-shadow:var(--shadow-md);border-color:var(--brand-teal-100);transform:translateY(-4px)}:where(.landing-root) .tcard-top{justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;display:flex}:where(.landing-root) .tcard-gain{font-size:12.5px;font-weight:700;font-family:var(--font-mono);color:var(--brand-teal-600);background:var(--brand-teal-50);border:1px solid var(--brand-teal-100);border-radius:var(--radius-pill);align-items:center;gap:6px;padding:4px 10px;display:inline-flex}:where(.landing-root) .tcard-gain svg{color:var(--brand-teal)}:where(.landing-root) .tcard-stars{color:var(--brand-teal);gap:2px;display:inline-flex}:where(.landing-root) .tcard-q{color:var(--fg-1);text-wrap:pretty;flex:auto;margin:0;padding-bottom:22px;font-size:15px;font-weight:500;line-height:1.58}:where(.landing-root) .tcard-by{border-top:1px solid var(--border-subtle);align-items:center;gap:12px;margin-top:auto;padding-top:16px;display:flex}:where(.landing-root) .tcard-by b{color:var(--brand-navy);font-size:13px;font-weight:700;display:block}:where(.landing-root) .tcard-by i{color:var(--fg-3);margin-top:1px;font-size:11.5px;font-style:normal;display:block}@media (max-width:560px){:where(.landing-root) .tcard{width:300px}}:where(.landing-root) .dtrick{background:var(--bg-canvas);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);max-width:460px;box-shadow:var(--shadow-lg);overflow:hidden}:where(.landing-root) .dt-graph{background:#0b1530;padding:6px}:where(.landing-root) .dt-graph svg{aspect-ratio:220/150;width:100%;height:auto;display:block}:where(.landing-root) .dt-tip{color:var(--fg-2);border-top:1px solid var(--border-subtle);align-items:flex-start;gap:9px;padding:14px 18px;font-size:13.5px;line-height:1.45;display:flex}:where(.landing-root) .dt-tip svg{color:var(--brand-teal-600);flex:none;margin-top:2px}:where(.landing-root) .dt-chips{flex-wrap:wrap;gap:8px;padding:0 18px 18px;display:flex}:where(.landing-root) .dt-chip{color:var(--brand-teal-600);background:var(--brand-teal-50);border:1px solid var(--brand-teal-100);border-radius:999px;padding:5px 11px;font-size:12px;font-weight:600}:where(.landing-root) .tx-meta{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:16px;display:flex}:where(.landing-root) .tx-assigned{color:var(--subject-verbal);background:var(--subject-verbal-bg);border-radius:var(--radius-pill);align-items:center;gap:6px;margin-left:auto;padding:4px 10px;font-size:11.5px;font-weight:700;display:inline-flex}:where(.landing-root) .tx-stem{font-family:var(--font-serif);color:var(--fg-1);margin:0 0 16px;font-size:18px;line-height:1.58}:where(.landing-root) .tx-stem .eq{font-family:var(--font-mono);background:var(--bg-app);border-radius:5px;padding:1px 6px;font-size:15px;font-weight:600}:where(.landing-root) .tx-answer{border:1px solid var(--brand-teal);background:var(--success-bg);border-radius:14px;align-items:center;gap:12px;margin-bottom:18px;padding:12px 16px;display:flex}:where(.landing-root) .tx-key{background:var(--brand-teal-600);color:#fff;border-radius:50%;flex:none;place-items:center;width:30px;height:30px;font-size:15px;font-weight:700;display:grid}:where(.landing-root) .tx-key-txt{color:var(--brand-teal-600);font-size:15px;font-weight:600}:where(.landing-root) .tx-correct{color:var(--brand-teal-600);align-items:center;gap:5px;margin-left:auto;font-size:12.5px;font-weight:700;display:inline-flex}:where(.landing-root) .tx-explain{border:1px solid var(--brand-teal-200);background:var(--brand-teal-soft,#f7fbfb);border-radius:14px;padding:16px 18px}:where(.landing-root) .tx-ex-head{align-items:center;gap:11px;margin-bottom:12px;display:flex}:where(.landing-root) .tx-ex-name{color:var(--brand-navy);font-size:13.5px;font-weight:800}:where(.landing-root) .tx-ex-sub{color:var(--fg-3);margin-top:1px;font-size:11.5px}:where(.landing-root) .tx-pencil{background:var(--brand-teal);width:30px;height:30px;color:var(--fg-on-teal);border-radius:9px;place-items:center;margin-left:auto;display:grid}:where(.landing-root) .tx-ex-body{color:var(--fg-2);margin:0;font-size:14px;line-height:1.62}:where(.landing-root) .tx-ex-body .eq{font-family:var(--font-mono);background:var(--bg-canvas);border:1px solid var(--border-subtle);border-radius:4px;padding:1px 5px;font-size:12.5px;font-weight:600}:where(.landing-root) .avatar{color:#fff;font-weight:700;font-family:var(--font-display);letter-spacing:-.01em;border-radius:11px;flex:none;place-items:center;display:grid}:where(.landing-root) .share{padding:110px 0;position:relative;overflow:hidden}:where(.landing-root) .share-glow{pointer-events:none;z-index:0;filter:blur(4px);background:radial-gradient(circle,#14bba638,#14bba600 62%);width:760px;height:760px;position:absolute;top:-160px;left:-200px}:where(.landing-root) .share-glow.two{background:radial-gradient(circle,#14bba629,#14bba600 62%);width:620px;height:620px;inset:auto -200px -220px auto}:where(.landing-root) .share .wrap{z-index:1;position:relative}:where(.landing-root) .share-head{text-align:center;max-width:760px;margin:0 auto 52px}:where(.landing-root) .share-title{font-family:var(--font-display);letter-spacing:-.03em;color:#fff;margin:16px 0 0;font-size:clamp(32px,4.4vw,56px);font-weight:800;line-height:1.05}:where(.landing-root) .share-title .accent{color:var(--brand-teal-400);white-space:nowrap;background:linear-gradient(#0000 64%,#14bba642 64%);position:relative}:where(.landing-root) .share-lede{font-size:var(--fs-18);color:#ffffffbd;max-width:620px;margin:22px auto 0;line-height:1.6}:where(.landing-root) .share-grid{grid-template-columns:1fr auto 1fr;align-items:center;gap:28px;max-width:940px;margin:0 auto;display:grid}:where(.landing-root) .share-col{min-width:0}:where(.landing-root) .share-col-cap{color:#fff;align-items:center;gap:9px;margin-bottom:14px;font-size:13px;font-weight:700;display:inline-flex}:where(.landing-root) .scc-ic{width:28px;height:28px;color:var(--brand-teal-400);background:#14bba633;border-radius:8px;flex:none;place-items:center;display:grid}:where(.landing-root) .share-arrow{flex-direction:column;align-items:center;gap:8px;display:flex}:where(.landing-root) .sa-ring{background:var(--brand-teal);width:54px;height:54px;color:var(--fg-on-teal);box-shadow:var(--shadow-teal-glow);animation:floaty 4.5s var(--ease-in-out) infinite;border-radius:50%;place-items:center;display:grid}:where(.landing-root) .sa-lbl{letter-spacing:.1em;text-transform:uppercase;color:var(--brand-teal-400);font-size:11px;font-weight:800}:where(.landing-root) .thread{background:var(--bg-canvas);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);flex-direction:column;display:flex;overflow:hidden}:where(.landing-root) .th-head{border-bottom:1px solid var(--border-subtle);align-items:center;gap:11px;padding:13px 16px;display:flex}:where(.landing-root) .th-head-txt{flex:1;min-width:0}:where(.landing-root) .th-eyebrow{letter-spacing:.1em;text-transform:uppercase;color:var(--brand-teal-600);white-space:nowrap;font-size:9.5px;font-weight:800}:where(.landing-root) .th-name{color:var(--brand-navy);white-space:nowrap;font-size:14px;font-weight:700}:where(.landing-root) .th-online{color:var(--brand-teal-600);white-space:nowrap;flex:none;align-items:center;gap:6px;margin-left:auto;font-size:11px;font-weight:700;display:inline-flex}:where(.landing-root) .th-online .dot{background:var(--brand-teal);border-radius:50%;width:7px;height:7px;animation:1.6s ease-in-out infinite pulseDot;box-shadow:0 0 0 4px #14bba638}:where(.landing-root) .th-body{scrollbar-width:none;flex-direction:column;gap:10px;height:318px;padding:16px;display:flex;overflow-y:auto}:where(.landing-root) .th-body::-webkit-scrollbar{display:none}:where(.landing-root) .msg{flex-direction:column;gap:4px;max-width:86%;display:flex}:where(.landing-root) .msg.in{align-self:flex-start;align-items:flex-start}:where(.landing-root) .msg.out{align-self:flex-end;align-items:flex-end}:where(.landing-root) .msg-text{border-radius:15px;padding:9px 13px;font-size:13.5px;line-height:1.42}:where(.landing-root) .msg.in .msg-text{background:var(--ink-100);color:var(--ink-900);border-bottom-left-radius:5px}:where(.landing-root) .msg.out .msg-text{background:var(--brand-teal-50);color:var(--brand-navy);border:1px solid var(--brand-teal-100);border-bottom-right-radius:5px;font-weight:500}:where(.landing-root) .msg-q{background:var(--bg-canvas);border:1px solid var(--border-subtle);box-shadow:var(--shadow-xs);border-radius:12px;max-width:240px;padding:10px 12px}:where(.landing-root) .msg-q-lab{letter-spacing:.12em;text-transform:uppercase;color:var(--brand-teal-600);margin-bottom:5px;font-size:9px;font-weight:800}:where(.landing-root) .msg-q-eq{color:var(--fg-1);font-size:13px;font-weight:600;line-height:1.5}:where(.landing-root) .msg-q-stem{font-family:var(--font-serif);color:var(--fg-1);margin-top:5px;font-size:13px;line-height:1.4}:where(.landing-root) .msg.enter{animation:none}@media (prefers-reduced-motion:no-preference){:where(.landing-root) .msg.enter{animation:msgIn .42s var(--ease-out) both}}@keyframes msgIn{0%{opacity:0;transform:translateY(9px)scale(.97)}to{opacity:1;transform:none}}:where(.landing-root) .typing{background:var(--ink-100);border-radius:15px 15px 15px 5px;gap:4px;padding:11px 14px;display:inline-flex}:where(.landing-root) .msg.out .typing{background:var(--brand-teal-50);border:1px solid var(--brand-teal-100);border-bottom-right-radius:5px;border-bottom-left-radius:15px}:where(.landing-root) .typing span{background:var(--ink-400);width:6px;height:6px;animation:typedot 1.2s var(--ease-in-out) infinite;border-radius:50%}:where(.landing-root) .typing span:nth-child(2){animation-delay:.18s}:where(.landing-root) .typing span:nth-child(3){animation-delay:.36s}@keyframes typedot{0%,60%,to{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-3px)}}:where(.landing-root) .th-composer{border-top:1px solid var(--border-subtle);align-items:center;gap:10px;padding:11px 13px;display:flex}:where(.landing-root) .th-input{color:var(--fg-4);background:var(--bg-app);border:1px solid var(--border-subtle);border-radius:var(--radius-pill);flex:1;padding:9px 14px;font-size:13px}:where(.landing-root) .th-send{background:var(--brand-navy);color:#fff;border-radius:50%;flex:none;place-items:center;width:34px;height:34px;display:grid}:where(.landing-root) .thread.accent .th-eyebrow{color:var(--subject-rw)}:where(.landing-root) .share-foot{text-align:center;font-size:var(--fs-18);color:#ffffffe6;font-weight:600;font-family:var(--font-display);margin:46px auto 0}:where(.landing-root) .share.treat-teal{background:linear-gradient(160deg, #0b2e33, var(--brand-navy) 70%)}:where(.landing-root) .share.treat-teal .share-glow{background:radial-gradient(circle,#14bba652,#14bba600 62%)}:where(.landing-root) .support{padding:92px 0}:where(.landing-root) .support-head{text-align:center;margin-bottom:34px}:where(.landing-root) .support-grid{grid-template-columns:1fr 1fr;gap:24px;display:grid}:where(.landing-root) .support-card{background:var(--bg-canvas);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);transition:transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base);padding:30px}:where(.landing-root) .support-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}:where(.landing-root) .sc-ico{background:var(--brand-teal-50);width:46px;height:46px;color:var(--brand-teal-600);border-radius:12px;place-items:center;margin-bottom:18px;display:grid}:where(.landing-root) .support-card h3{font-family:var(--font-display);letter-spacing:-.01em;color:var(--brand-navy);margin:0 0 8px;font-size:21px;font-weight:700}:where(.landing-root) .support-card>p{color:var(--fg-2);max-width:360px;margin:0 0 22px;font-size:14.5px;line-height:1.55}:where(.landing-root) .sc-visual{margin-top:4px}:where(.landing-root) .support-card .mini-row .nm{width:128px;color:var(--fg-1);font-size:13px;font-weight:550}:where(.landing-root) .support-card .mini-bar{height:8px}:where(.landing-root) .support-card .mini-bar>i{transition:width .9s var(--ease-out)}:where(.landing-root) .support-card .mini-row .pct{width:36px;font-size:12px}:where(.landing-root) .mistakes-flow{flex-direction:column;gap:0;display:flex}:where(.landing-root) .mf-step{align-items:center;gap:14px;padding:7px 0;display:flex;position:relative}:where(.landing-root) .mf-ico{z-index:1;border-radius:11px;flex:none;place-items:center;width:38px;height:38px;display:grid;position:relative}:where(.landing-root) .mf-t{color:var(--brand-navy);font-size:14.5px;font-weight:700}:where(.landing-root) .mf-s{color:var(--fg-3);margin-top:1px;font-size:12.5px}:where(.landing-root) .mf-line{background:repeating-linear-gradient(180deg, var(--border-default) 0 4px, transparent 4px 8px);width:2px;height:22px;position:absolute;top:45px;left:18px}:where(.landing-root) .meet-grid{grid-template-columns:.82fr 1.18fr;grid-template-areas:"photo head""photo body";align-items:center;gap:0 56px;display:grid}:where(.landing-root) .meet-photo-wrap{grid-area:photo}:where(.landing-root) .meet-head{grid-area:head}:where(.landing-root) .meet-body{grid-area:body}:where(.landing-root) .meet-photo-wrap{aspect-ratio:4/5;border-radius:var(--radius-xl);border:1px solid var(--border-subtle);box-shadow:var(--shadow-lg);background:var(--bg-app);position:relative;overflow:hidden}:where(.landing-root) .meet-photo-wrap image-slot{width:100%;height:100%}:where(.landing-root) .meet-badge{color:var(--brand-navy);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border-radius:var(--radius-pill);box-shadow:var(--shadow-sm);background:#ffffffeb;align-items:center;gap:6px;padding:7px 12px;font-size:12px;font-weight:700;display:inline-flex;position:absolute;bottom:16px;left:16px}:where(.landing-root) .meet-name{font-family:var(--font-display);letter-spacing:-.02em;color:var(--brand-navy);margin:14px 0 0;font-size:clamp(30px,3.4vw,42px);font-weight:800}:where(.landing-root) .meet-title{color:var(--brand-teal-600);margin-top:6px;font-size:15px;font-weight:700}:where(.landing-root) .meet-bio{font-size:var(--fs-18);color:var(--fg-2);text-align:justify;max-width:520px;margin:20px 0 0;line-height:1.62}:where(.landing-root) .meet-ph{color:var(--fg-4);font-size:14px;font-style:italic}:where(.landing-root) .meet-involve{background:var(--brand-teal-50);border:1px solid var(--brand-teal-100);max-width:520px;color:var(--brand-navy);border-radius:14px;align-items:center;gap:12px;margin-top:22px;padding:16px 18px;font-size:14.5px;font-weight:550;line-height:1.5;display:flex}:where(.landing-root) .mi-ic{background:var(--brand-teal);width:30px;height:30px;color:var(--fg-on-teal);border-radius:9px;flex:none;place-items:center;display:grid}:where(.landing-root) .meet-schools{margin-top:22px}:where(.landing-root) .ms-lab{letter-spacing:.08em;text-transform:uppercase;color:var(--fg-3);margin-bottom:6px;font-size:11px;font-weight:800;display:block}:where(.landing-root) .ms-list{color:var(--brand-navy);font-size:14px;font-weight:600;line-height:1.5}:where(.landing-root) .meet-cta{flex-wrap:wrap;align-items:center;gap:13px;margin-top:30px;display:flex}@media (max-width:1000px){:where(.landing-root) .pillar{padding:76px 0}:where(.landing-root) .pillar-row,:where(.landing-root) .pillar-row.reverse{grid-template-columns:1fr;gap:44px}:where(.landing-root) .pillar-row.reverse .pillar-copy{order:1}:where(.landing-root) .pillar-row.reverse .pillar-visual{order:2}:where(.landing-root) .pillar-lede{max-width:none}:where(.landing-root) .solve-visual{padding-bottom:0;padding-right:0}:where(.landing-root) .calcpane{width:100%;margin-top:16px;animation:none;position:static}:where(.landing-root) .cp-graph{min-height:150px}:where(.landing-root) .share-grid{grid-template-columns:1fr;gap:22px;max-width:460px}:where(.landing-root) .share-arrow{flex-direction:row;gap:12px}:where(.landing-root) .sa-ring{transform:rotate(90deg)}:where(.landing-root) .support-grid{grid-template-columns:1fr}:where(.landing-root) .meet-grid{grid-template-columns:1fr;grid-template-areas:"head""photo""body";row-gap:20px}:where(.landing-root) .meet-photo-wrap{max-width:360px}:where(.landing-root) .tutor-points{grid-template-columns:1fr;gap:18px}}@media (max-width:680px){:where(.landing-root) .pillar{padding:60px 0}:where(.landing-root) .share{padding:70px 0}:where(.landing-root) .support{padding:60px 0}:where(.landing-root) .school-name{max-width:none}:where(.landing-root) .texplain{padding:20px}:where(.landing-root) .th-body{height:280px}:where(.landing-root) .meet-bio{font-size:16px}}:where(.landing-root) .cp-dot{border-radius:50%;flex-shrink:0;width:12px;height:12px}:where(.landing-root) .cp-curve-anim{stroke-dasharray:600;stroke-dashoffset:600px;animation:1.5s cubic-bezier(.4,0,.2,1) .4s forwards solv-draw}:where(.landing-root) .desmos-live{border:1px solid var(--border-subtle);border-radius:12px;width:100%;height:460px;position:relative;overflow:hidden}:where(.landing-root) .desmos-zoom{width:100%;height:100%}:where(.landing-root) .desmos-block{z-index:6;cursor:default;background:0 0;position:absolute;inset:0}@media (max-width:640px){:where(.landing-root) .desmos-live{height:360px}}@media (min-width:1001px){:where(.landing-root) #desmos .dtrick{width:100%;max-width:540px}}@keyframes solv-draw{to{stroke-dashoffset:0}}:where(.landing-root) .sm-curve{stroke-dasharray:600;stroke-dashoffset:600px}:where(.landing-root) .sm-ix{transform-box:fill-box;transform-origin:50%;transform:scale(0)}:where(.landing-root) .pillar-visual[data-in] .sm-lin{animation:4.4s cubic-bezier(.4,0,.2,1) infinite sm-draw-loop}:where(.landing-root) .pillar-visual[data-in] .sm-par{animation:4.4s cubic-bezier(.4,0,.2,1) .2s infinite sm-draw-loop}:where(.landing-root) .pillar-visual[data-in] .sm-ix{animation:4.4s infinite sm-ix-loop,1.5s ease-in-out infinite sm-glow}@keyframes sm-draw-loop{0%{stroke-dashoffset:600px}38%{stroke-dashoffset:0}86%{stroke-dashoffset:0}to{stroke-dashoffset:600px}}@keyframes sm-ix-loop{0%,34%{transform:scale(0)}44%{transform:scale(1.35)}54%,84%{transform:scale(1)}to{transform:scale(0)}}@keyframes sm-glow{0%,to{filter:drop-shadow(0 0 1px var(--brand-teal))}50%{filter:drop-shadow(0 0 5px var(--brand-teal)) drop-shadow(0 0 10px var(--brand-teal))}}:where(.landing-root) .testi-rows:hover .tmarquee-track{animation-play-state:running}:where(.landing-root) .solve-mock{border-radius:var(--radius-xl);border:1px solid var(--border-subtle);box-shadow:var(--shadow-lg);background:var(--bg-canvas);overflow:hidden}:where(.landing-root) .sm-head{background:var(--brand-navy);align-items:center;gap:10px;padding:10px 14px;display:flex}:where(.landing-root) .sm-title{color:#ffffffe0;letter-spacing:.01em;font-size:12.5px;font-weight:600}:where(.landing-root) .sm-q{color:#fff9;margin-left:auto;font-size:11.5px}:where(.landing-root) .sm-body{grid-template-columns:1fr 1.02fr;display:grid}:where(.landing-root) .sm-calc{background:var(--bg-app);border-right:1px solid var(--border-subtle);flex-direction:column;display:flex}:where(.landing-root) .sm-bar{border-bottom:1px solid var(--border-subtle);background:var(--bg-canvas);align-items:center;gap:8px;padding:6px 10px;display:flex}:where(.landing-root) .sm-bar-plus{background:var(--brand-teal-50);width:22px;height:22px;color:var(--brand-teal-600);border-radius:6px;place-items:center;font-size:16px;font-weight:700;line-height:1;display:grid}:where(.landing-root) .sm-bar-col{color:var(--fg-4);margin-left:auto;font-size:15px;font-weight:700;line-height:1}:where(.landing-root) .sm-exprs{border-bottom:1px solid var(--border-subtle);flex-direction:column;display:flex}:where(.landing-root) .sm-expr{color:var(--fg-1);border-bottom:1px solid var(--border-subtle);align-items:center;gap:9px;padding:8px 10px 8px 0;font-size:12.5px;display:flex}:where(.landing-root) .sm-expr:last-child{border-bottom:none}:where(.landing-root) .sm-n{text-align:center;width:26px;color:var(--fg-4);border-right:1px solid var(--border-subtle);flex:none;align-self:stretch;place-items:center;font-size:10.5px;font-weight:700;display:grid}:where(.landing-root) .sm-graph{background:var(--bg-canvas);flex:1;min-height:168px}:where(.landing-root) .sm-graph svg{width:100%;height:100%;display:block}:where(.landing-root) .sm-q-pane{flex-direction:column;gap:13px;padding:16px 18px 18px;display:flex}:where(.landing-root) .sm-meta{flex-wrap:wrap;gap:6px;display:flex}:where(.landing-root) .sm-stem{font-family:var(--font-serif);color:var(--fg-1);margin:0;font-size:14.5px;line-height:1.55}:where(.landing-root) .sm-choices{flex-direction:column;gap:7px;margin-top:2px;display:flex}:where(.landing-root) .sm-choice{border:1px solid var(--border-subtle);color:var(--fg-1);border-radius:10px;align-items:center;gap:10px;padding:9px 12px;font-size:13px;display:flex}:where(.landing-root) .sm-choice .k{background:var(--bg-app);width:24px;height:24px;color:var(--fg-3);border-radius:50%;flex:none;justify-content:center;align-items:center;font-size:12px;font-weight:700;line-height:1;display:flex}:where(.landing-root) .sm-choice.correct{border-color:var(--brand-teal);background:var(--brand-teal-50)}:where(.landing-root) .sm-choice.correct .k{background:var(--brand-teal);color:#fff}@media (max-width:1000px){:where(.landing-root) .sm-body{grid-template-columns:1fr}:where(.landing-root) .sm-calc{border-right:none;border-bottom:1px solid var(--border-subtle)}}:where(.landing-root) .ktex-wrap{display:inline}:where(.landing-root) .ktex-wrap .katex{font-size:.97em}:where(.landing-root) .qs-nav{grid-template-columns:1fr auto 1fr;align-items:center;gap:8px;padding:12px 16px;display:grid}:where(.landing-root) .qs-nav-side{align-items:center;display:flex}:where(.landing-root) .qs-nav-btns{justify-content:flex-end;gap:8px}:where(.landing-root) .qnav-pill{border:1px solid var(--border-default);background:var(--bg-canvas);color:var(--fg-2);cursor:default;border-radius:999px;align-items:center;gap:7px;padding:7px 15px;font-size:12.5px;font-weight:600;display:inline-flex}:where(.landing-root) .qnav-pill b{color:var(--brand-navy);font-weight:800}:where(.landing-root) .qnav-btn{border:1px solid var(--border-default);background:var(--bg-canvas);color:var(--fg-1);cursor:default;border-radius:999px;align-items:center;gap:6px;padding:8px 16px;font-size:12.5px;font-weight:650;line-height:1;display:inline-flex}:where(.landing-root) .qnav-btn.primary{background:var(--brand-navy);border-color:var(--brand-navy);color:#fff}:where(.landing-root) .qs-top{grid-template-columns:1fr auto 1fr;gap:12px;display:grid}:where(.landing-root) .qs-top-side{align-items:center;display:flex}:where(.landing-root) .qs-timer{justify-self:center}:where(.landing-root) .qs-tools{justify-self:end;margin-left:0}:where(.landing-root) .qs-explain .lab .ans{text-transform:none}:where(.landing-root) .hero-pillars{justify-content:center;gap:10px 9px}:where(.landing-root) .hp-break{border:0;flex-basis:100%;width:100%;height:0;margin:0;padding:0}@media (max-width:560px){:where(.landing-root) .hp-break{display:none}}:where(.landing-root) .sb-marquee{overflow:hidden;-webkit-mask:linear-gradient(90deg,#0000,#000 7% 93%,#0000);mask:linear-gradient(90deg,#0000,#000 7% 93%,#0000)}:where(.landing-root) .sb-track{align-items:stretch;width:max-content;animation:48s linear infinite sb-scroll;display:flex}@keyframes sb-scroll{to{transform:translate(-50%)}}:where(.landing-root) .school{border-radius:var(--radius-md);background:var(--bg-canvas);border:1px solid var(--border-subtle);box-shadow:var(--shadow-xs);flex:none;align-items:center;gap:13px;margin-right:14px;padding:12px 20px;display:inline-flex}:where(.landing-root) .school:hover{transform:none}:where(.landing-root) .school-logo{flex:none;place-items:center;width:54px;height:54px;display:grid}:where(.landing-root) .school-logo img{object-fit:contain;max-width:100%;max-height:100%}:where(.landing-root) .school-name{color:var(--brand-navy);white-space:normal;-webkit-line-clamp:2;-webkit-box-orient:vertical;max-width:160px;font-size:13.5px;font-weight:700;line-height:1.25;display:-webkit-box;overflow:hidden}@media (prefers-reduced-motion:reduce){:where(.landing-root) .sb-track{flex-wrap:wrap;justify-content:center;width:auto;animation:none}}:where(.landing-root) .faq-list{flex-direction:column;gap:12px;display:flex}:where(.landing-root) .faq-item{background:var(--paper);border:1px solid var(--border-subtle);border-radius:16px;padding:0 22px}:where(.landing-root) .faq-item[open]{border-color:var(--brand-teal-200)}:where(.landing-root) .faq-item summary{cursor:pointer;font-family:var(--font-display);color:var(--brand-navy);padding:20px 28px 20px 0;font-size:18px;font-weight:700;line-height:1.35;list-style:none;position:relative}:where(.landing-root) .faq-item summary::-webkit-details-marker{display:none}:where(.landing-root) .faq-item summary:after{content:"+";color:var(--brand-teal-600);font-size:24px;font-weight:500;position:absolute;top:50%;right:0;transform:translateY(-50%)}:where(.landing-root) .faq-item[open] summary:after{content:"−"}:where(.landing-root) .faq-item summary:focus-visible{outline:2px solid var(--brand-teal);outline-offset:2px;border-radius:8px}:where(.landing-root) .faq-item p{color:var(--fg-2);margin:0;padding:0 0 22px;font-size:16px;line-height:1.65}
