:root{color-scheme:light dark;--bg: #f8f6f2;--surface: #ffffff;--surface-2: #f0ede7;--ink: #17181c;--muted: #5b5e66;--line: #e3e0da;--accent: #2f55d4;--accent-ink: #ffffff;--accent-soft: #e7ecff;--on-soft: #1c3080;--correct: #1d7a47;--correct-soft: #e4f3ea;--on-correct: #ffffff;--incorrect: #a4312a;--incorrect-soft: #f9e8e6;--on-incorrect: #ffffff;--notice-bg: #fff6df;--notice-line: #e8cf86;--notice-ink: #4d3a05;--focus: #2f55d4;--glass: rgb(255 255 255 / 72%);--glass-line: rgb(23 24 28 / 8%);--shadow-sm: 0 1px 2px rgb(23 24 28 / 5%), 0 6px 18px rgb(23 24 28 / 5%);--shadow-lg: 0 2px 6px rgb(23 24 28 / 8%), 0 28px 60px -12px rgb(30 45 110 / 28%);--brand: #2f55d4;--brand-deep: #2443ad;--brand-tint: #9db2ff;--r-sm: 8px;--r-md: 14px;--r-lg: 22px;--r-xl: 28px;--wrap: 1180px;--prose: 68ch;--font: -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--display: -apple-system, BlinkMacSystemFont, "SF Pro Display", system-ui, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}@media(prefers-color-scheme:dark){:root{--bg: #0f1012;--surface: #16171a;--surface-2: #1d1e22;--ink: #eceae6;--muted: #a7a9b0;--line: #2b2c31;--accent: #9db2ff;--accent-ink: #0f1b4d;--accent-soft: #22347a;--on-soft: #dbe2ff;--correct: #63cf92;--correct-soft: #12291c;--on-correct: #06240f;--incorrect: #f08b83;--incorrect-soft: #331a18;--on-incorrect: #3a0d09;--notice-bg: #2c2410;--notice-line: #6b5a1f;--notice-ink: #f1e3b0;--focus: #9db2ff;--glass: rgb(30 31 35 / 72%);--glass-line: rgb(255 255 255 / 9%);--shadow-sm: 0 1px 2px rgb(0 0 0 / 30%);--shadow-lg: 0 2px 6px rgb(0 0 0 / 40%), 0 28px 60px -12px rgb(0 0 0 / 70%)}}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:5.5rem}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:1.0625rem;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-wrap:break-word;overflow-x:clip}img,svg{display:block;max-width:100%}a{color:var(--accent);text-underline-offset:.18em;text-decoration-thickness:.08em}a:hover{text-decoration-thickness:.14em}:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:4px}h1,h2,h3{margin:0 0 .5em;font-family:var(--display);font-weight:700;line-height:1.1;letter-spacing:-.022em;text-wrap:balance}h1{font-size:clamp(2.5rem,2rem + 3.2vw,4rem);font-weight:750;line-height:1.02;letter-spacing:-.038em}h2{font-size:clamp(1.9rem,1.55rem + 1.9vw,3rem);letter-spacing:-.03em}h3{font-size:1.2rem;font-weight:650;line-height:1.25;letter-spacing:-.014em}p{margin:0 0 1em}sup{font-size:.6em;line-height:0}ul,ol{margin:0 0 1em;padding-left:1.3em}li{margin-bottom:.4em}.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:max(20px,4vw)}.icon{flex:none;width:1.15em;height:1.15em}.sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}.skip-link{position:absolute;left:16px;top:-100px;z-index:100;background:var(--accent);color:var(--accent-ink);padding:12px 16px;border-radius:var(--r-sm);font-weight:650}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:saturate(1.5) blur(14px);-webkit-backdrop-filter:saturate(1.5) blur(14px);border-bottom:1px solid color-mix(in srgb,var(--line) 70%,transparent)}.site-header .wrap{display:flex;flex-wrap:wrap;align-items:center;gap:8px 16px;min-height:68px}.brand{display:inline-flex;align-items:center;gap:10px;min-height:44px;margin-right:auto;color:var(--ink);font-family:var(--display);font-weight:700;font-size:1.15rem;letter-spacing:-.022em;text-decoration:none}.brand img{width:32px;height:32px;border-radius:8px}.nav{display:flex;gap:0 2px}.nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 12px;color:var(--muted);font-weight:550;font-size:.95rem;text-decoration:none;white-space:nowrap;border-radius:999px}.nav a:hover,.nav a[aria-current=page]{color:var(--ink);background:color-mix(in srgb,var(--ink) 7%,transparent)}.header-cta{min-height:44px;padding-inline:18px;font-size:.95rem;white-space:nowrap}.site-footer{margin-top:clamp(64px,9vw,112px);border-top:1px solid var(--line);background:var(--surface-2);font-size:.95rem;color:var(--muted)}.site-footer .wrap{padding-block:56px 40px}.footer-grid{display:grid;gap:32px;grid-template-columns:minmax(0,2fr) repeat(3,minmax(0,1fr));margin-bottom:24px}.footer-brand p{max-width:30ch;margin:8px 0 0}.site-footer h2{margin-bottom:8px;font-family:var(--font);font-size:.8rem;font-weight:650;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.site-footer ul{list-style:none;padding:0;margin:0}.site-footer li{margin:0}.footer-mail a{display:inline-block;padding-block:8px;color:var(--ink);text-decoration:none}.site-footer li a{display:inline-flex;align-items:center;min-height:40px;color:var(--ink);text-decoration:none}.site-footer li a:hover,.footer-mail a:hover{text-decoration:underline}.footer-mail{margin:0 0 16px;font-weight:600;overflow-wrap:anywhere}.site-footer .fine{max-width:82ch;font-size:.86rem;margin:0 0 8px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 24px;border-radius:999px;border:1.5px solid transparent;font:inherit;font-weight:650;text-decoration:none;cursor:pointer;transition:transform .15s ease-out,background-color .15s ease-out}.btn-primary{background:var(--accent);color:var(--accent-ink)}.btn-primary:hover{transform:translateY(-1px)}.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}.btn-ghost:hover{background:var(--surface-2)}.store-buttons{display:flex;flex-wrap:wrap;gap:12px;margin:0;padding:0;list-style:none}.store-buttons li{margin:0}.store-btn{display:inline-flex;flex-direction:column;justify-content:center;min-height:60px;min-width:190px;padding:8px 24px;border-radius:var(--r-md);background:var(--ink);color:var(--bg);text-decoration:none;line-height:1.2;transition:transform .15s ease-out}.store-btn small{font-size:.74rem;font-weight:500;opacity:.8}.store-btn strong{font-family:var(--display);font-size:1.2rem;font-weight:650;letter-spacing:-.015em}.store-btn:hover{transform:translateY(-1px)}.link-arrow{display:inline-flex;align-items:center;gap:6px;min-height:44px;font-weight:650;text-decoration:none}.link-arrow:hover{text-decoration:underline}.link-arrow .icon{transition:transform .15s ease-out}.link-arrow:hover .icon{transform:translate(3px)}.hero{position:relative;padding-block:clamp(32px,5vw,72px) clamp(40px,5vw,72px);overflow:clip}.hero:before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(60rem 36rem at 78% 28%,color-mix(in srgb,var(--brand-tint) 26%,transparent),transparent 70%),radial-gradient(40rem 26rem at 6% 0%,color-mix(in srgb,var(--brand-tint) 11%,transparent),transparent 70%)}.hero-grid{display:grid;gap:clamp(32px,5vw,72px);align-items:center;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr)}.eyebrow{margin:0 0 18px;color:var(--accent);font-size:.95rem;font-weight:650;letter-spacing:.01em}.h1-accent{display:block;color:var(--accent)}.lede{max-width:50ch;margin-bottom:28px;font-size:clamp(1.1rem,1rem + .5vw,1.3rem);line-height:1.5;color:var(--muted)}.hero-links{margin:12px 0 18px}.hero-facts{display:flex;flex-wrap:wrap;gap:4px 18px;margin:0;padding:0;list-style:none;font-size:.95rem;color:var(--muted)}.hero-facts li{display:inline-flex;align-items:center;gap:6px;margin:0}.hero-facts .icon{color:var(--accent)}.stage{position:relative;display:flex;flex-direction:column;align-items:center;gap:16px}.stage-fan{position:absolute;inset:0;pointer-events:none}.stage-fan span{position:absolute;top:7%;left:50%;width:min(78%,20rem);height:76%;border-radius:44px}.stage-fan span:first-child{background:var(--brand-tint);transform:translate(-72%) rotate(-11deg)}.stage-fan span:last-child{background:var(--brand);transform:translate(-28%) rotate(9deg)}.stage-note{position:relative;display:flex;align-items:flex-start;gap:8px;max-width:21rem;margin:0;padding:8px 14px;border-radius:var(--r-md);background:var(--glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--glass-line);font-size:.86rem;line-height:1.4}.stage-note .icon{margin-top:1px;color:var(--accent)}.phone{position:relative;width:min(100%,20.5rem);padding:9px;border-radius:3.1rem;background:#111214;box-shadow:var(--shadow-lg),inset 0 0 0 1.5px #3a3c42}.screen{position:relative;display:flex;flex-direction:column;height:39rem;overflow:hidden;border-radius:2.55rem;background:var(--bg);color:var(--ink);font-size:.875rem;line-height:1.4}.screen:before{content:"";position:absolute;inset:40% 0 0;background:linear-gradient(to bottom,transparent,color-mix(in srgb,var(--brand-tint) 16%,transparent));pointer-events:none}.status-bar{position:relative;z-index:3;display:flex;flex:none;align-items:center;justify-content:space-between;padding:11px 22px 3px;font-size:.78rem;font-weight:650}.island{width:5rem;height:1.35rem;border-radius:999px;background:#000}.battery{position:relative;width:1.4rem;height:.7rem;border-radius:3px;background:currentColor}.battery:after{content:"";position:absolute;top:25%;right:-3px;width:2px;height:50%;border-radius:0 2px 2px 0;background:currentColor}.glass{background:var(--glass);backdrop-filter:blur(14px) saturate(1.3);-webkit-backdrop-filter:blur(14px) saturate(1.3);border:1px solid var(--glass-line);box-shadow:0 6px 18px #17181c12}.app-bar{position:sticky;top:4px;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:8px;margin:6px 10px 0;padding:6px 12px 6px 8px;border-radius:1.5rem}.app-bar-mark{width:1.3rem;height:1.3rem;color:var(--muted)}.pill{display:inline-flex;align-items:center;gap:5px;padding:5px 12px;border-radius:999px;background:color-mix(in srgb,var(--ink) 7%,transparent);color:var(--muted);font-size:.8rem;font-weight:600;line-height:1.3}.pill-accent{background:var(--accent);color:var(--accent-ink)}.screen-scroll{position:relative;flex:1;min-height:0;overflow-y:auto;scrollbar-width:thin;overscroll-behavior:auto;padding-bottom:5.5rem}.screen-scroll:focus-visible{outline-offset:-3px}.screen-body{position:relative;padding:12px 16px 10px}.stem-mock{display:block;width:100%;margin:0;padding:0;font-family:var(--display);font-size:1.14rem;font-weight:650;line-height:1.28;letter-spacing:-.012em}.stem-mock+.opt{margin-top:12px}.instr{margin:8px 0 12px;color:var(--muted);font-size:.86rem;font-weight:550}.opt{position:relative;display:flex;gap:10px;align-items:flex-start;margin:0 0 8px;padding:10px 12px;border:1.5px solid var(--line);border-radius:var(--r-md);background:var(--surface);line-height:1.35}.opt-letter{display:grid;flex:none;place-items:center;width:1.65rem;height:1.65rem;border:1.5px solid var(--line);border-radius:50%;font-size:.8rem;font-weight:650}.opt-body{flex:1;min-width:0;padding-top:1px}.opt-text{display:block}.opt-verdict{display:block;margin-top:4px;font-size:.8rem;font-weight:700;color:var(--muted)}.opt-expl{display:block;margin-top:1px;color:var(--muted);font-size:.78rem}.opt-mark{width:1.25rem;height:1.25rem;margin-top:2px}.state-other .opt-text,.demo:has(.opt-input:checked) .is-distractor:not(:has(.opt-input:checked)) .opt-text{color:var(--muted)}.state-missed,.demo:has(.opt-input:checked) .is-key{border-color:var(--correct)}.state-missed .opt-verdict,.state-missed .opt-mark,.demo:has(.opt-input:checked) .is-key .opt-verdict,.demo:has(.opt-input:checked) .is-key .opt-mark{color:var(--correct)}.state-missed .opt-letter,.demo:has(.opt-input:checked) .is-key .opt-letter{border-color:var(--correct);color:var(--correct)}.state-wrong,.is-distractor:has(.opt-input:checked){border-color:var(--incorrect);background:var(--incorrect-soft)}.state-wrong .opt-verdict,.state-wrong .opt-mark,.is-distractor:has(.opt-input:checked) .opt-verdict,.is-distractor:has(.opt-input:checked) .opt-mark{color:var(--incorrect)}.state-wrong .opt-letter,.is-distractor:has(.opt-input:checked) .opt-letter{border-color:var(--incorrect);background:var(--incorrect);color:var(--on-incorrect)}.is-key:has(.opt-input:checked){background:var(--correct-soft)}.demo:has(.opt-input:checked) .is-key:has(.opt-input:checked) .opt-letter{border-color:var(--correct);background:var(--correct);color:var(--on-correct)}.bar{position:absolute;left:10px;right:10px;bottom:10px;z-index:2;display:flex;align-items:center;gap:10px;min-height:4rem;padding:8px 12px;border-radius:1.5rem}.bar-hint{flex:1;color:var(--muted);font-size:.8rem;text-align:center}.bar-badge{display:grid;flex:none;place-items:center;width:2.2rem;height:2.2rem;border-radius:50%}.bar-badge .icon{width:1.25rem;height:1.25rem;stroke-width:2.6}.bar-badge.is-correct{background:var(--correct);color:var(--on-correct)}.bar-badge.is-wrong{background:var(--incorrect);color:var(--on-incorrect)}.bar-text{flex:1;min-width:0;line-height:1.25}.bar-text strong{display:block;font-size:1rem}.bar-text strong.is-correct{color:var(--correct)}.bar-text strong.is-wrong{color:var(--incorrect)}.bar-text small{display:block;color:var(--muted);font-size:.74rem}.bar-next{display:inline-flex;flex:none;align-items:center;justify-content:center;gap:5px;min-height:2.75rem;padding:0 16px;border-radius:999px;background:var(--accent);color:var(--accent-ink);font-weight:650;text-decoration:none}.bar-next .icon{stroke-width:2.4}.mock-label{margin:0 0 6px;color:var(--muted);font-weight:650}.why{margin-bottom:12px;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);line-height:1.45}.takeaway-mock{margin-bottom:14px;padding:12px 14px;border-radius:var(--r-md);background:var(--accent-soft);color:var(--on-soft);font-weight:620;line-height:1.35}.takeaway-mock span{display:block;margin-bottom:2px;font-size:.76rem;font-weight:650;opacity:.75}.source-chips{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:10px}.source-chip{display:inline-flex;gap:7px;align-items:flex-start;min-height:2.75rem;padding:7px 12px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);color:var(--ink);font-size:.78rem;font-weight:550;line-height:1.3;text-decoration:none}.source-chip .icon{margin-top:1px;color:var(--accent)}.checked{display:flex;gap:6px;align-items:flex-start;margin:0 0 12px;color:var(--muted);font-size:.76rem;line-height:1.35}.checked u{color:var(--accent)}.actions-mock,.vis{display:flex;flex-wrap:wrap;gap:8px}.action-pill{display:inline-flex;align-items:center;gap:6px;min-height:2.5rem;padding:0 14px;border:1px solid var(--line);border-radius:999px;background:var(--surface);font-size:.85rem;font-weight:600}.action-pill.is-tonal{border-color:transparent;background:var(--accent-soft);color:var(--on-soft)}.action-pill.is-plain{border-color:transparent;background:none;padding-inline:4px;color:var(--accent)}.demo-set{min-width:0;margin:0;padding:0;border:0}.demo .opt{cursor:pointer;transition:border-color .15s ease-out,background-color .15s ease-out}.demo .opt:hover{border-color:var(--accent)}.demo .opt:has(.opt-input:focus-visible){outline:3px solid var(--focus);outline-offset:2px}.opt-input{position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:pointer}.demo:not(:has(.opt-input:checked)) .opt-after,.demo:not(:has(.opt-input:checked)) .opt-mark,.demo:not(:has(.opt-input:checked)) .demo-reveal,.demo:not(:has(.opt-input:checked)) .demo-next,.demo:has(.opt-input:checked) .demo-when-idle,.demo-when-right,.demo-when-wrong{display:none}.demo:has(.is-key .opt-input:checked) .demo-when-right,.demo:has(.is-distractor .opt-input:checked) .demo-when-wrong{display:contents}.opt:has(.opt-input:checked) .v-other,.opt:not(:has(.opt-input:checked)) .v-chosen{display:none}.demo .is-distractor:not(:has(.opt-input:checked)) .opt-mark{display:none}.demo-reveal{margin-top:14px}.section{padding-block:clamp(56px,8vw,104px) 0}.section-head{max-width:44rem;margin-bottom:clamp(28px,4vw,44px)}.section-head p:last-child{margin:0;color:var(--muted);font-size:clamp(1.05rem,1rem + .25vw,1.2rem);line-height:1.5}.kicker,.section-head .kicker{margin:0 0 12px;color:var(--accent);font-size:.82rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}.fineprint{max-width:78ch;margin:20px 0 0;color:var(--muted);font-size:.875rem;line-height:1.5}.credit{margin-top:24px}.counts{border-block:1px solid var(--line);background:var(--surface)}.counts-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px 32px;margin:0;padding:clamp(20px,3vw,32px) 0;list-style:none}.counts-grid li{margin:0}.counts-grid strong{display:block;font-family:var(--display);font-size:clamp(1.8rem,1.4rem + 1.6vw,2.6rem);font-weight:700;line-height:1.1;letter-spacing:-.03em;font-variant-numeric:tabular-nums}.counts-grid span{display:block;margin-top:4px;color:var(--muted);font-size:.92rem;line-height:1.35}.steps-scroll{overflow-x:auto;scrollbar-width:none}.steps-scroll::-webkit-scrollbar{display:none}.steps-scroll:focus-visible{outline-offset:-3px}.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;max-width:var(--wrap);margin:0 auto;padding:8px max(20px,4vw) 28px;list-style:none}.steps>li{display:flex;flex-direction:column;align-items:center;margin:0;padding:24px 20px 0;overflow:hidden;border:1px solid var(--line);border-radius:var(--r-xl);background:var(--surface)}.step-copy{align-self:stretch;margin-bottom:20px}.step-no{display:grid;place-items:center;width:2rem;height:2rem;margin-bottom:12px;border-radius:50%;background:var(--accent-soft);color:var(--on-soft);font-weight:700;font-size:.95rem}.step-copy h3{margin-bottom:4px;font-size:1.3rem}.step-copy p{margin:0;color:var(--muted);font-size:1rem;line-height:1.5}.phone-static{--crop: 3.5rem;margin-top:auto;margin-bottom:calc(-1 * var(--crop));width:min(100%,18rem);box-shadow:0 2px 6px #00000014,0 18px 36px -12px #1e2d6e40,inset 0 0 0 1.5px #3a3c42}.phone-static .screen{height:38rem;font-size:.8rem}.phone-static .screen-body{flex:1;min-height:0;overflow:hidden;padding-bottom:5.5rem}.phone-static .bar{bottom:calc(var(--crop) + 10px)}.phone-static .stem-mock{font-size:1.02rem}.trust{margin-top:clamp(56px,8vw,104px);padding-block:clamp(56px,7vw,96px);background:var(--brand-deep);color:#fff}.trust-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(32px,5vw,72px);align-items:start}.trust .kicker{color:#c9d5ff}.trust h2{color:#fff}.trust-lead{max-width:34rem;color:#e4e9ff;font-size:clamp(1.05rem,1rem + .25vw,1.2rem);line-height:1.5}.trust a{color:#fff}.trust-sources{margin-top:28px;padding:20px 22px 10px;border:1px solid rgb(255 255 255 / 22%);border-radius:var(--r-lg);background:#ffffff14}.trust-sources-num{margin-bottom:12px;color:#e4e9ff;font-size:.97rem;line-height:1.35}.trust-sources-num strong{display:block;color:#fff;font-family:var(--display);font-size:2.2rem;font-weight:700;line-height:1.1;letter-spacing:-.03em}.trust-sources ul{margin:0 0 6px;padding:0;list-style:none;font-size:.9rem;color:#e4e9ff}.trust-sources li{display:flex;justify-content:space-between;gap:16px;margin:0;padding:7px 0;border-top:1px solid rgb(255 255 255 / 15%)}.trust-sources li span:last-child{font-variant-numeric:tabular-nums}.trust-points{display:grid;gap:12px;margin:0;padding:0;list-style:none}.trust-points li{display:flex;gap:14px;margin:0;padding:18px 20px;border-radius:var(--r-lg);background:var(--surface);color:var(--ink)}.trust-points li>div{min-width:0}.trust-points h3{margin-bottom:4px}.trust-points p{margin:0;color:var(--muted);font-size:.97rem;line-height:1.5}.trust-points a{color:var(--accent)}.trust-icon{display:grid;flex:none;place-items:center;width:2.4rem;height:2.4rem;border-radius:50%;background:var(--accent-soft);color:var(--on-soft)}.trust-points .is-flag{box-shadow:inset 0 0 0 2px var(--accent)}.format-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;margin:0;padding:0;list-style:none}.format-grid li{display:flex;margin:0}.format{display:flex;flex:1;flex-direction:column;gap:12px;min-height:7rem;padding:16px;border:1px solid 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