:root{--ink:#00052d;--blue:#2867d6;--muted:#53657e;--line:#dce4ef;--canvas:#f4f7fb;--panel:#fff;--radius:12px;color:var(--ink);background:var(--canvas);font-family:Inter,ui-sans-serif,system-ui,sans-serif;font-synthesis:none;line-height:1.6;scroll-behavior:smooth;scroll-padding-top:24px}
*{box-sizing:border-box}body{margin:0;min-width:320px}a{color:inherit;text-underline-offset:4px;text-decoration-thickness:1px}a:hover{color:var(--blue)}button,input{font:inherit}button{cursor:pointer}button:disabled,input:disabled{cursor:not-allowed;opacity:.55}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--blue);outline-offset:5px}::selection{background:#cde1ff;color:var(--ink)}svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}img{max-width:100%}[hidden]{display:none!important}.wrap{width:min(1184px,calc(100% - 80px));margin-inline:auto}.skip{position:absolute;left:24px;top:-80px;z-index:10;padding:12px 20px;background:var(--ink);color:white}.skip:focus{top:12px}.site-header{display:flex;align-items:center;gap:32px;min-height:100px;border-bottom:1px solid var(--line)}.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;letter-spacing:-.04em;font-size:25px;font-weight:750}.brand img{border-radius:9px}.site-header nav{display:flex;gap:32px;margin-left:auto}.site-header nav a{text-decoration:none;font-size:15px;font-weight:550;padding:12px 0}.site-header nav a[aria-current]{text-decoration:underline;color:var(--blue)}.button{display:inline-flex;justify-content:center;align-items:center;gap:16px;min-height:48px;padding:13px 21px;border:1px solid var(--blue);border-radius:9px;background:var(--blue);color:white;font-size:15px;line-height:1.4;font-weight:650;text-decoration:none;transition:background 150ms ease-out,color 150ms ease-out}.button:hover{background:#2058bc;color:white}.button.secondary{background:var(--panel);color:var(--ink);border-color:var(--line)}.button.secondary:hover{background:#edf4ff;color:var(--blue);border-color:#b8cbeb}.site-header .button{font-size:14px;gap:10px;min-height:44px;padding:10px 14px}.site-header .button svg{width:18px}.text-link{display:inline-flex;align-items:center;gap:12px;font-weight:600;font-size:15px;text-decoration:none}.text-link:hover{text-decoration:underline}.hero{display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:70px;padding-block:92px 96px}.hero h1{font-size:clamp(40px,4.8vw,64px);line-height:1.08;letter-spacing:-.04em;font-weight:720;margin:0 0 27px;text-wrap:balance}.hero h1 span{color:var(--blue)}.hero-copy>p{font-size:18px;color:var(--muted);max-width:48ch;margin:0}.actions{display:flex;align-items:center;flex-wrap:wrap;gap:24px;margin-top:32px}.hero-copy>.hero-note{font-size:13px;margin-top:20px}.tool-preview{margin:0;min-width:0;padding:25px 25px 0;background:var(--panel);border:1px solid var(--line);border-radius:16px;box-shadow:0 12px 36px #1727460d;overflow:hidden}.preview-top{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:14px;font-weight:650}.preview-top>span:first-child{display:flex;align-items:center;gap:10px}.preview-top img{border-radius:6px}.preview-top>span:last-child{border:1px solid var(--line);border-radius:7px;padding:5px 10px;color:var(--blue)}.preview-scale{position:relative;margin-block:42px 32px;padding:0 0 30px;isolation:isolate}.scale-labels{display:flex;justify-content:space-between;font-size:13px;font-variant-numeric:tabular-nums;color:var(--muted)}.scale-ticks{height:58px;margin-top:8px;background:repeating-linear-gradient(90deg,#a9b9d0 0 1px,transparent 1px 4%);mask-image:linear-gradient(#000 0 40%,transparent 40% 58%,#000 58%);border-top:1px solid #a9b9d0}.scale-reading{position:absolute;left:24%;top:23px;width:2px;height:78px;background:var(--blue);transition:translate 250ms cubic-bezier(.22,1,.36,1)}.scale-reading::before{content:"";position:absolute;left:-4px;top:-3px;width:10px;height:10px;border-radius:50%;background:var(--blue)}.tool-preview:hover .scale-reading,.tool-preview:focus-within .scale-reading{translate:0 -3px}.scale-unit{position:absolute;right:0;bottom:0;color:var(--muted);font-size:11px}.preview-readings{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding-top:20px;border-top:1px solid var(--line)}.preview-readings>div{display:grid;gap:6px}.preview-readings>div>span{color:var(--muted);font-size:12px}.preview-readings strong{font-size:34px;letter-spacing:-.035em;font-weight:650;font-variant-numeric:tabular-nums}.preview-readings small{font-size:14px;letter-spacing:0;font-weight:450}.tool-preview figcaption{font-size:11px;line-height:1.6;color:var(--muted);margin:20px 0}.preview-open{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:0 -25px;padding:16px 25px;border-top:1px solid var(--line);background:#f8faff;color:var(--blue);text-decoration:none;font-size:14px;font-weight:600}.preview-open:hover{background:#edf4ff}h2{font-size:clamp(27px,3vw,38px);line-height:1.18;letter-spacing:-.035em;font-weight:650;margin:0 0 20px;text-wrap:balance}h3{font-size:21px;line-height:1.35;letter-spacing:-.02em;font-weight:650;margin:0 0 8px}.tools-section{display:grid;grid-template-columns:1fr 1.8fr;gap:90px;padding-block:72px 100px;border-top:1px solid var(--line)}.section-intro p,.section-heading p{font-size:16px;color:var(--muted);margin:0;max-width:50ch}.tool-list{border-top:1px solid var(--line)}.tool-row{display:flex;align-items:center;gap:24px;padding:26px 0;border-bottom:1px solid var(--line);text-decoration:none}.tool-symbol{color:var(--blue);width:58px;flex-shrink:0;font-size:23px;letter-spacing:-.045em;font-weight:600;font-variant-numeric:tabular-nums}.tool-row>div{flex:1}.tool-row p{margin:0;color:var(--muted);font-size:14px;max-width:58ch}.tool-row>svg{margin-left:10px;color:var(--blue)}.tool-row:hover h3{color:var(--blue);text-decoration:underline}.field-section{background:#eaf1fc;padding-block:72px}.field-inner{display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:100px}.field-inner>div>p{font-size:17px;color:#425777;max-width:50ch;margin:0 0 28px}.field-sheet{background:var(--panel);padding:30px;border:1px solid #d1def2;border-radius:12px}.field-sheet>span{display:block;font-size:19px;font-weight:650;letter-spacing:-.02em}.field-sheet>p{font-size:13px!important;margin:8px 0 20px!important}.field-sheet>div{display:grid;grid-template-columns:1fr 1.6fr;gap:16px;border-top:1px solid var(--line);padding:15px 0;font-size:12px}.field-sheet>div>span{color:var(--muted)}.field-sheet>div>strong{font-weight:550}.field-sheet>small{display:block;color:var(--muted);font-size:11px;margin-top:8px}.guides-section{padding-block:100px 80px}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:32px;margin-bottom:38px}.section-heading h2{margin-bottom:14px}.section-heading>.text-link{flex-shrink:0}.guide-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:36px}.guide-row{text-decoration:none;border-top:1px solid #bacce8;padding:23px 0 0;display:flex;flex-direction:column;align-items:start}.guide-time{font-size:12px;color:var(--muted);margin-bottom:16px}.guide-row h3{font-size:23px;max-width:25ch}.guide-row p{font-size:14px;color:var(--muted);margin:10px 0 24px;max-width:42ch}.guide-row .text-link{color:var(--blue);margin-top:auto}.guide-row:hover h3{text-decoration:underline}.more-tools{padding-block:32px 70px}.more-tools h2{font-size:27px}.more-tools>div{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:36px}.more-tools a{position:relative;display:grid;gap:8px;padding:18px 35px 18px 0;border-top:1px solid var(--line);text-decoration:none}.more-tools strong{font-size:15px;font-weight:600}.more-tools span{font-size:13px;color:var(--muted);max-width:36ch}.more-tools svg{position:absolute;right:0;top:18px;width:18px}.closing{padding-block:60px 80px;text-align:center;border-top:1px solid var(--line)}.closing h2{font-size:38px}.closing p{color:var(--muted);margin:0 0 28px}.site-footer{display:grid;grid-template-columns:1fr auto;gap:32px;border-top:1px solid var(--line);padding-block:40px}.site-footer .brand{font-size:22px}.site-footer p{color:var(--muted);font-size:13px;margin:10px 0 0}.site-footer nav{display:grid;grid-template-columns:1fr 1fr;align-content:start;gap:12px 28px}.site-footer nav a{font-size:13px;text-decoration:none}.site-footer nav a:hover{text-decoration:underline}.site-footer .footer-note{grid-column:1/-1;font-size:11px;margin:0}.index-page{padding-block:64px 90px;min-height:65vh}.index-page>h1,.article-heading h1,.transfer-page>h1{font-size:clamp(36px,5vw,58px);line-height:1.12;letter-spacing:-.04em;font-weight:680;max-width:21ch;margin:0 0 24px;text-wrap:balance}.lead{font-size:20px;color:var(--muted);max-width:64ch;line-height:1.65;margin:0 0 36px}.index-page>.tool-list{max-width:900px;margin-top:48px}.index-page>.guide-list{margin-top:48px}.article-page{padding-block:36px 80px}.breadcrumbs{display:flex;gap:12px;align-items:center;font-size:13px;color:var(--muted);margin-bottom:42px}.breadcrumbs a{text-decoration:none}.breadcrumbs a:hover{text-decoration:underline}.article-heading{max-width:900px}.article-heading .lead{max-width:60ch}.article-heading .button{margin-bottom:16px}.reading-time{color:var(--muted);font-size:13px;margin:0}.article-layout{display:grid;grid-template-columns:minmax(0,74ch) minmax(180px,1fr);gap:80px;margin-top:52px;padding-top:36px;border-top:1px solid var(--line)}.prose{grid-column:1;grid-row:1;font-size:17px;line-height:1.85}.prose h2{font-size:28px;line-height:1.3;margin:44px 0 16px;letter-spacing:-.025em}.prose>h2:first-child{margin-top:0}.prose h3{font-size:21px;margin:32px 0 12px}.prose p{margin:0 0 22px}.prose li{margin-bottom:12px}.prose ul,.prose ol{padding-left:24px;margin-block:20px 28px}.prose strong{font-weight:650}.prose a:not(.button){color:#215abe}.prose table{width:100%;border-collapse:collapse;font-size:15px}.prose td,.prose th{text-align:left;border-bottom:1px solid var(--line);padding:12px 8px}.prose .formula{background:#eaf1fc;padding:20px;border-radius:9px;font-weight:600}.article-aside{grid-column:2;grid-row:1;font-size:13px}.article-aside nav{position:sticky;top:32px;display:grid;gap:14px}.article-aside nav>span{font-weight:650;margin-bottom:4px}.article-aside nav a{color:var(--muted);text-decoration:none}.article-aside nav a:hover{color:var(--blue);text-decoration:underline}.aside-link{display:flex;align-items:center;gap:12px;margin-top:32px;color:var(--blue);text-decoration:none}.sources{border-top:1px solid var(--line);margin-top:44px;padding-top:4px}.sources h2{font-size:22px}.sources li{font-size:14px;overflow-wrap:anywhere}.article-cta{padding:30px;background:#eaf1fc;border-radius:12px;margin-block:44px}.article-cta h2{font-size:26px;margin:0 0 14px}.article-cta p{font-size:16px;margin:0 0 20px}.data-notice{display:flex;align-items:center;justify-content:space-between;gap:20px;border:1px solid #b8cbeb;border-radius:10px;padding:20px;margin-bottom:40px;font-size:14px}.data-notice p{margin:0}.data-notice a{display:flex;align-items:center;gap:10px;color:var(--blue)}.transfer-page{padding-block:64px 80px;max-width:1000px}.origin-note{font-size:14px;color:var(--muted);overflow-wrap:anywhere}.transfer-steps{display:grid;grid-template-columns:1fr 1fr;gap:48px;margin-block:40px}.transfer-steps section{border-top:1px solid var(--line);padding-top:28px;min-width:0}.transfer-steps h2{font-size:25px}.transfer-steps p{color:var(--muted);font-size:15px}.transfer-page>p:not(.lead){font-size:14px;color:var(--muted)}.file-label{display:grid;gap:12px;margin-top:24px;font-size:14px;font-weight:600}.file-label input{width:100%;font-size:13px;color:var(--muted)}.file-label input::file-selector-button{background:white;border:1px solid var(--line);padding:10px;border-radius:7px;margin-right:12px;color:var(--ink);cursor:pointer}.transfer-steps [role=status]{min-height:48px;font-size:13px;color:#23466f;overflow-wrap:anywhere}
@media(min-width:1440px){.hero{padding-block:110px}.hero h1{font-size:68px}}
@media(max-width:1000px){.wrap{width:calc(100% - 48px)}.hero{gap:36px;padding-block:66px}.hero h1{font-size:46px}.hero-copy>p{font-size:17px}.actions{gap:18px}.actions>.text-link{font-size:14px}.tools-section{gap:44px;grid-template-columns:1fr 1.7fr}.field-inner{gap:48px}.guide-list,.more-tools>div{gap:24px}.preview-readings strong{font-size:29px}.article-layout{gap:40px;grid-template-columns:minmax(0,1fr) 180px}}
@media(max-width:760px){.site-header{min-height:86px;gap:18px;flex-wrap:wrap;padding-block:18px}.site-header .brand{font-size:23px}.site-header nav{gap:20px}.site-header .button{width:100%;min-height:42px}.hero{grid-template-columns:1fr;gap:42px;padding-block:52px 60px}.hero h1{font-size:clamp(39px,8vw,56px)}.hero-copy>p{max-width:58ch}.hero-note{max-width:none!important}.tool-preview{max-width:540px;width:100%;justify-self:center}.tools-section{grid-template-columns:1fr;gap:30px;padding-block:48px 60px}.section-intro h2 br{display:none}.section-intro p{max-width:60ch}.field-section{padding-block:48px}.field-inner{grid-template-columns:1fr;gap:32px}.field-sheet{max-width:540px;width:100%}.guides-section{padding-block:60px 48px}.section-heading{align-items:start;flex-direction:column;gap:20px;margin-bottom:30px}.guide-list{grid-template-columns:1fr;gap:30px}.guide-row{padding-top:20px}.guide-row h3{max-width:none;font-size:24px}.guide-row p{max-width:60ch;margin-bottom:18px}.guide-time{margin-bottom:12px}.more-tools>div{grid-template-columns:1fr;gap:0}.more-tools{padding-block:24px 48px}.more-tools a{padding-block:22px}.closing{padding-block:46px 60px}.closing h2{font-size:32px}.site-footer{grid-template-columns:1fr;gap:24px}.site-footer nav{max-width:460px}.article-layout{grid-template-columns:1fr;margin-top:36px;padding-top:28px}.article-aside{grid-column:1;grid-row:1}.article-layout>.prose{grid-column:1;grid-row:2}.article-aside nav{position:static;padding-bottom:24px;border-bottom:1px solid var(--line);gap:10px}.article-aside .aside-link{display:none}.article-heading .lead,.lead{font-size:18px}.article-heading h1{font-size:40px}.breadcrumbs{margin-bottom:30px}.prose{grid-column:1;grid-row:1;font-size:16px}.prose h2{font-size:25px}.data-notice{flex-direction:column;align-items:start}.transfer-steps{grid-template-columns:1fr;gap:24px}.transfer-page{padding-top:48px}}
@media(max-width:420px){.wrap{width:calc(100% - 36px)}.site-header nav{gap:15px}.site-header nav a{font-size:13px}.site-header .brand{font-size:22px}.brand img{width:30px;height:30px}.hero h1{font-size:40px}.hero-copy>p{font-size:16px}.actions{align-items:start;flex-direction:column;gap:20px}.actions>.button{width:100%}.preview-readings strong{font-size:30px}.preview-readings small{font-size:12px}.tool-preview{padding:20px 20px 0}.preview-open{margin-inline:-20px;padding-inline:20px}.tool-row{gap:14px;padding-block:23px}.tool-symbol{width:48px;font-size:21px}.tool-row h3{font-size:18px}.tool-row p{font-size:13px}.tool-row>svg{width:18px;margin:0}.field-sheet{padding:23px}.field-sheet>div{grid-template-columns:1fr;font-size:13px;gap:4px}.article-heading h1{font-size:35px}.article-cta{padding:24px}.article-cta .button{font-size:14px;gap:10px}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}