@layer theme{:root,:host{--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring:where(:not(iframe)){outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.absolute{position:absolute}}:root{--ink:#23334e;--muted:#6e7c91;--blue:#2464db;--line:#e5eaf1;--pale:#f3f7fd}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{color:var(--ink);background:#fff;margin:0;font-family:Arial,Hiragino Kaku Gothic ProN,Noto Sans JP,Meiryo,sans-serif;font-size:14px;line-height:1.8}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline-offset:4px;outline:3px solid #76aaff}header{border-bottom:1px solid var(--line)}.header-inner{justify-content:space-between;align-items:center;max-width:1160px;min-height:90px;margin:auto;padding:0 28px;display:flex}.brand{letter-spacing:.02em;align-items:center;gap:10px;font-size:20px;font-weight:750;display:flex}.brand-icon{color:#fff;background:var(--blue);border-radius:9px;justify-content:center;align-items:center;width:33px;height:36px;font-size:29px;line-height:1;display:inline-flex}.beta{color:var(--muted);margin-left:13px;font-size:10px;font-weight:400}.nav-link{font-size:12px;font-weight:600}.nav-link span{color:var(--blue);margin-left:12px}.hero{grid-template-columns:1.35fr 1fr;align-items:center;gap:36px;max-width:1160px;margin:auto;padding:72px 28px 65px;display:grid}.eyebrow{letter-spacing:.13em;color:var(--blue);align-items:center;gap:9px;font-size:11px;font-weight:700;display:flex}.eyebrow>span{background:var(--blue);border-radius:50%;width:7px;height:7px}h1,h2,h3,p{margin:0}.hero h1{letter-spacing:.025em;margin:20px 0;font-size:40px;font-weight:750;line-height:1.65}.hero h1 em{color:var(--blue);font-style:normal}.hero-copy>p{color:var(--muted);font-size:14px;line-height:2}.primary{background:var(--blue);color:#fff;border-radius:7px;align-items:center;gap:35px;margin-top:27px;padding:13px 22px;font-weight:700;display:inline-flex;box-shadow:0 5px 12px #2464db18}.primary:hover{background:#164dbb}.hero-notes{color:#65778e;gap:22px;margin-top:20px;font-size:11px;display:flex}.hero-notes span:first-letter{color:var(--blue)}.hero-art{background:radial-gradient(#e7f0ff 5%,#f5f8ff 55%,#0000 72%);justify-content:center;align-items:center;min-height:322px;display:flex;position:relative}.paper{z-index:1;background:#fff;border:1px solid #e4ebf6;border-radius:13px;width:310px;padding:23px;transform:rotate(-5deg);box-shadow:0 18px 45px #2b5c9e13}.paper-top{letter-spacing:.1em;color:#8597b3;justify-content:space-between;align-items:center;margin-bottom:20px;font-size:8px;display:flex}.mini-icon{color:var(--blue);background:#edf4ff;border-radius:5px;padding:1px 8px;font-size:16px}.paper>p{color:var(--muted);font-size:11px}.paper-equation{margin:3px 0 13px;font-size:30px;font-weight:600}.paper-equation span{color:#a2acc0;font-size:20px}.paper-result{color:var(--blue);border-top:1px dashed #dbe4f3;justify-content:space-between;align-items:center;padding-top:13px;display:flex}.paper-result>span{font-size:11px}.paper-result strong{font-size:34px}.paper-result small{font-size:14px}.paper-bottom{color:#8494a9;margin-top:12px;font-size:10px}.paper-bottom span{color:#519884;margin-right:6px}.orbit{color:#6a91d6;background:#fff;border:1px solid #e0e8f7;border-radius:13px;place-items:center;width:52px;height:52px;font-size:25px;display:grid;position:absolute;box-shadow:0 7px 20px #4375bc0b}.orbit-one{top:0;right:9px;transform:rotate(12deg)}.orbit-two{bottom:35px;left:0;transform:rotate(-12deg)}.art-caption{color:#7c8fae;letter-spacing:.08em;font-size:10px;position:absolute;bottom:-7px}.tools-section{border-top:1px solid var(--line);background:#fafbfd;padding:43px max(28px,50% - 552px) 48px;scroll-margin-top:20px}.section-heading{justify-content:space-between;align-items:end;gap:20px;margin-bottom:25px;display:flex}.section-heading h2{margin-top:6px;font-size:23px;font-weight:700}.section-heading>p{color:var(--muted);font-size:11px}.tool-grid{grid-template-columns:repeat(4,1fr);gap:18px;display:grid}.tool-card{border:1px solid var(--line);background:#fff;border-radius:10px;padding:22px 20px;transition:transform .15s,box-shadow .15s;position:relative;overflow:hidden}.tool-card:hover{border-color:#bad0f3;transform:translateY(-4px);box-shadow:0 10px 25px #213e6c0c}.card-top{justify-content:space-between;align-items:center;margin-bottom:19px;display:flex}.tool-icon{border-radius:11px;flex-shrink:0;place-items:center;width:44px;height:44px;font-size:25px;font-weight:600;display:inline-grid}.blue{color:#3975d7;background:#edf3ff}.orange{color:#d99845;background:#fff3e9}.green{color:#4b9b87;background:#eaf7f2;font-size:20px}.purple{color:#8d76c5;background:#f2effc;font-size:20px}.category{color:var(--muted);background:#f7f9fb;border-radius:4px;padding:3px 7px;font-size:9px}.tool-card h3{margin-bottom:8px;font-size:18px;font-weight:700}.tool-card>p{color:var(--muted);min-height:42px;font-size:11px;line-height:1.9}.card-bottom{color:#7c8ba0;border-top:1px solid #eef1f5;justify-content:space-between;align-items:center;gap:4px;margin-top:20px;padding-top:14px;font-size:10px;display:flex}.arrow{color:var(--blue);font-size:17px}.card-number{display:none}.promise{grid-template-columns:1.3fr 1fr 1fr 1.2fr;align-items:center;gap:28px;max-width:1160px;margin:auto;padding:39px 28px 44px;display:grid}.promise-title h2{margin-top:7px;font-size:14px;font-weight:700}.promise-icon{color:var(--blue);background:#edf3ff;border-radius:50%;padding:4px 8px}.promise h3{margin-bottom:6px;font-size:12px;font-weight:700}.promise p{color:var(--muted);font-size:10px;line-height:1.9}footer{border-top:1px solid var(--line);background:#f8fafc;padding:30px max(28px,50% - 552px) 16px}.footer-inner{justify-content:space-between;align-items:center;display:flex}.brand.small{font-size:14px}.small .brand-icon{border-radius:6px;width:25px;height:27px;font-size:22px}.footer-inner p{color:var(--muted);margin-top:10px;font-size:10px}.footer-inner nav{color:var(--muted);gap:23px;font-size:10px;display:flex}.copyright{text-align:right;color:#8895a7;margin-top:16px;font-size:9px}.skip{z-index:100;background:#fff;padding:10px;position:absolute;top:-80px;left:10px}.skip:focus{top:10px}.page-shell{max-width:1000px;margin:auto;padding:25px 28px 60px}.breadcrumb{color:var(--muted);margin-bottom:35px;font-size:11px}.breadcrumb a{color:var(--blue)}.tool-heading{align-items:center;gap:17px;margin-bottom:30px;display:flex}.tool-heading h1{font-size:30px;font-weight:700}.tool-heading p{color:var(--muted);font-size:13px}.tool-heading .tool-icon{width:59px;height:59px}.calculator{border:1px solid var(--line);border-radius:14px;grid-template-columns:1.1fr 1fr;display:grid;overflow:hidden;box-shadow:0 8px 25px #29436c05}.input-panel{padding:29px}.panel-title{align-items:center;gap:10px;margin-bottom:24px;display:flex}.panel-title>span{color:var(--blue);font-size:11px}.panel-title h2{font-size:17px;font-weight:700}.reset{color:var(--muted);background:0 0;border:0;margin-left:auto;padding:9px;font-size:11px}.field{margin-top:20px;display:block}.field>span,legend{margin-bottom:9px;font-size:12px;font-weight:600;display:block}.input-wrap{position:relative}.input-wrap input{padding-right:52px}.input-wrap>span{color:var(--muted);font-size:12px;position:absolute;top:13px;right:15px}input:not([type=checkbox]),select{width:100%;min-width:0;color:var(--ink);background:#fff;border:1px solid #d5dfec;border-radius:7px;min-height:48px;padding:11px 13px;font-size:16px;display:block}input[aria-invalid=true]{border-color:#c64646}fieldset{border:0;min-width:0;margin:20px 0 0;padding:0}.choices{gap:8px;display:flex}.choices button{color:#617086;background:#fff;border:1px solid #dce4ef;border-radius:7px;flex:1;min-height:45px;padding:9px 5px;font-size:12px}.choices .selected{border-color:var(--blue);color:var(--blue);background:#eef4ff;font-weight:700}.result-panel{border-left:1px solid var(--line);background:#f0f5fd;flex-direction:column;padding:30px;display:flex}.result-top{color:#587296;justify-content:space-between;font-size:12px;display:flex}.live-dot{color:var(--blue);font-size:10px}.live-dot:before{content:"";background:var(--blue);border-radius:50%;width:5px;height:5px;margin-right:6px;display:inline-block}.main-result{margin:47px 0 33px}.main-result h2{color:#5d7598;font-size:13px}.result-number{color:var(--blue);overflow-wrap:anywhere;font-variant-numeric:tabular-nums;font-size:clamp(26px,3.5vw,42px);font-weight:700;line-height:1.7}.result-number>span{margin-left:9px;font-size:16px}.main-result>p{color:var(--muted);font-size:12px}dl{margin:0}dl>div{border-top:1px solid #dbe5f3;justify-content:space-between;gap:12px;padding:14px 0;font-size:12px;display:flex}dd{text-align:right;overflow-wrap:anywhere;margin:0;font-weight:600}.result-note{color:#6b809e;margin-top:auto;padding-top:25px;font-size:10px}.explanation{border:1px solid var(--line);background:#fafbfd;border-radius:10px;margin-top:26px;padding:25px 28px}.explanation h2,.related h2{margin-bottom:11px;font-size:15px;font-weight:700}.explanation p{color:#697a91;margin-top:8px;font-size:12px}.error{color:#b33535;margin-top:6px;font-size:11px;display:block}.checkbox{align-items:center;gap:8px;min-height:44px;margin-top:22px;font-size:12px;display:flex}.checkbox input{width:18px;height:18px;accent-color:var(--blue)}.related{margin-top:38px}.related>div{gap:13px;display:flex}.related a{border:1px solid var(--line);border-radius:7px;flex:1;padding:15px;font-size:12px}.related a span{float:right;color:var(--blue)}.legal{max-width:800px;min-height:55vh;margin:45px auto 65px;padding:0 25px}.legal h1{margin-bottom:22px;font-size:28px;font-weight:700}.legal h2{margin:26px 0 8px;font-size:17px;font-weight:700}.legal p{color:var(--muted);margin-top:12px}.legal a{color:var(--blue)}@media (min-width:1400px){.hero{padding-top:90px;padding-bottom:85px}.tools-section{padding-top:52px;padding-bottom:60px}}@media (max-width:900px){.beta{display:none}.hero h1{font-size:32px}.hero{gap:10px}.paper{width:270px}.tool-grid,.promise{grid-template-columns:repeat(2,1fr)}.section-heading{flex-direction:column;align-items:start;gap:7px}.tool-card>p{min-height:0}}@media (max-width:600px){.header-inner{min-height:73px;padding:0 20px}.brand{font-size:16px}.nav-link{font-size:10px}.nav-link span{margin-left:3px}.brand-icon{width:28px;height:31px}.hero{grid-template-columns:1fr;gap:22px;padding:39px 23px 37px}.hero h1{margin-top:16px;font-size:29px}.hero-copy>p{font-size:12px}.hero-art{width:100%;max-width:360px;min-height:285px;margin:auto}.paper{width:270px;padding:20px}.orbit-one{top:7px;right:0}.orbit-two{bottom:28px;left:5px}.hero-notes{gap:17px}.tools-section{padding:30px 20px}.section-heading h2{font-size:20px}.tool-grid{gap:12px}.tool-card{padding:16px 13px}.card-top{align-items:start;gap:5px}.category{padding:2px 4px;font-size:8px}.tool-icon{width:36px;height:38px;font-size:21px}.tool-card h3{font-size:16px}.tool-card>p{min-height:42px;font-size:11px}.card-bottom{gap:3px;margin-top:14px;font-size:9px}.promise{gap:25px 17px;padding:29px 22px}.promise-title h2{font-size:12px}.footer-inner{flex-direction:column;align-items:start;gap:22px}.footer-inner nav{gap:20px}.copyright{text-align:left}.page-shell{padding:22px 18px 40px}.tool-heading h1{font-size:26px}.calculator{grid-template-columns:1fr}.input-panel,.result-panel{padding:23px}.result-panel{border-left:0;border-top:1px solid var(--line)}.main-result{margin:25px 0}.result-number{font-size:37px}.related>div{flex-direction:column}.explanation{padding:21px}.breadcrumb{margin-bottom:25px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.tool-card{transition:none}}