:root{--ink:#172839;--muted:#576879;--blue:#1949bd;--deep:#123270;--paper:#faf9f5;--line:#d9dee0;--soft:#eef3fa;--white:#fff;--orange:#c76b40;--radius:5px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;color:var(--ink);background:var(--paper);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;font-size:16px;line-height:1.9;-webkit-font-smoothing:antialiased}h1,h2,h3,p{margin-top:0}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled,input:disabled{cursor:default}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #c76b40;outline-offset:4px}a:hover{color:var(--blue)}button:hover{filter:brightness(.96)}img{max-width:100%;height:auto}button{border:0}strong{font-weight:650}.wrap{width:min(1180px,calc(100% - 96px));margin-inline:auto}.header{display:flex;align-items:center;justify-content:space-between;gap:30px;width:min(1300px,calc(100% - 64px));margin:auto;padding:25px 0;border-bottom:1px solid var(--line)}.brand{display:inline-flex;align-items:center;gap:9px;font-size:22px;font-weight:750;letter-spacing:.02em;line-height:1.3;white-space:nowrap}.brand img{border-radius:10px}.brand small{display:block;font-size:9px;letter-spacing:.19em;font-weight:600;margin-top:3px;color:var(--muted)}nav{display:flex;align-items:center;gap:33px;font-size:13px;font-weight:600}nav [aria-current=page]{color:var(--blue)}.nav-app{border-bottom:1px solid var(--ink);padding-bottom:3px}.skip{position:absolute;top:-100px;left:10px;padding:10px;background:#fff;z-index:10}.skip:focus{top:10px}.eyebrow{font-size:11px;font-weight:700;letter-spacing:.13em;line-height:1.5;color:var(--blue);margin-bottom:22px}.little-line{display:inline-block;background:var(--blue);height:2px;width:25px;vertical-align:middle;margin-right:9px}.hero{display:grid;grid-template-columns:1.07fr 1fr;align-items:center;gap:32px;padding-top:58px;padding-bottom:55px;min-height:650px}.hero h1{font-size:clamp(35px,3.45vw,51px);line-height:1.65;letter-spacing:.02em;margin-bottom:20px;font-weight:750}.blue{color:var(--blue)}.hero-desc{font-size:17px;line-height:2.2;color:var(--muted);margin-bottom:30px}.actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px}.button{display:inline-flex;align-items:center;justify-content:center;gap:24px;padding:14px 23px;min-height:54px;border:1px solid var(--blue);background:var(--blue);color:#fff;border-radius:var(--radius);font-size:13px;font-weight:650;line-height:1.7;text-align:center;transition:background .15s}.button:hover{background:var(--deep);color:#fff}.button span{font-size:19px;font-weight:400}.button.secondary{background:transparent;color:var(--ink);border-color:var(--line)}.text-link{display:inline-flex;align-items:center;gap:15px;background:none;padding:5px 0;font-weight:600;font-size:13px;border-bottom:1px solid currentColor;line-height:1.7;color:inherit}.fine{font-size:11px;line-height:1.9;color:var(--muted);margin-top:16px}.hero-art{position:relative}.hero-art img{width:100%;display:block}.art-caption{display:block;text-align:right;font-size:10px;letter-spacing:.08em;color:var(--muted);margin-top:-10px}.principles{border-block:1px solid var(--line)}.principle-grid{display:grid;grid-template-columns:1fr 1.1fr 1fr}.principle-grid p{font-size:12px;margin:0;padding:22px 14px;border-right:1px solid var(--line)}.principle-grid p:first-child{padding-left:0}.principle-grid p:last-child{border-right:none}.principle-grid span{font-family:Georgia,serif;font-style:italic;font-size:18px;color:var(--blue);margin-right:12px}.section{padding-block:100px}.section h2{font-size:30px;line-height:1.8;letter-spacing:.02em;font-weight:700}.tool-intro{display:grid;grid-template-columns:1fr 1fr;gap:100px;align-items:center}.tool-intro>div>p:not(.eyebrow){color:var(--muted);font-size:14px;line-height:2.2;margin-bottom:28px}.paper-example{background:#fff;padding:33px 40px;border:1px solid var(--line);border-left:5px solid var(--blue);box-shadow:8px 8px 0 #edece7;transform:rotate(1deg);max-width:480px}.paper-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px;padding-bottom:16px;border-bottom:1px solid var(--ink)}.paper-top>span{font-size:20px;letter-spacing:.1em;font-weight:700}.paper-top small{font-size:10px;color:var(--muted)}.sample-row{display:grid;grid-template-columns:85px 1fr;align-items:start;border-bottom:1px solid #e3e7e9;padding:13px 0;font-size:13px}.sample-row>span,.sample-next>span{font-size:11px;color:var(--muted)}.sample-row p{margin:0}.sample-next{padding-top:17px}.sample-next p{font-size:14px;color:var(--blue);margin:8px 0 0;font-weight:600}.guides-section{background:#eeefeb}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:35px}.section-heading h2{margin:0}.section-heading>p{font-size:12px;color:var(--muted);margin-bottom:6px}.guide{display:grid;grid-template-columns:60px 1fr 20px;gap:25px;border-top:1px solid #cdd3d4;padding:28px 10px;align-items:center}.guide:last-child{border-bottom:1px solid #cdd3d4}.guide-number{font:italic 30px Georgia,serif;color:var(--blue)}.guide .eyebrow{font-size:10px;margin-bottom:7px}.guide h3{font-size:19px;font-weight:650;margin-bottom:5px;line-height:1.7}.guide p{font-size:12px;color:var(--muted);margin:0}.guide>span:last-child{font-size:22px}.app-section{display:grid;grid-template-columns:.9fr 1.2fr;gap:100px}.app-heading>img{border:1px solid #e4e8ed;border-radius:20px;margin-bottom:20px}.app-heading>.eyebrow{margin-bottom:13px}.app-heading p:last-child{font-size:14px;color:var(--muted)}.app-feature{padding:0 0 24px;margin-bottom:24px;border-bottom:1px solid var(--line)}.app-feature>span{font-size:10px;letter-spacing:.13em;font-weight:700;color:var(--blue)}.app-feature h3{font-size:17px;margin:7px 0 8px;line-height:1.8}.app-feature p{font-size:13px;color:var(--muted);margin:0}.distribution{padding-top:10px}.distribution strong{font-size:14px}.distribution p{font-size:12px;color:var(--muted);margin-top:8px}.closing{background:var(--deep);color:#fff;padding:68px 0 73px;text-align:center}.closing .eyebrow{color:#c8d6f2}.closing h2{font-size:34px;line-height:1.8;margin-bottom:25px}.button.light{background:var(--white);color:var(--deep);border-color:var(--white)}.footer{width:min(1180px,calc(100% - 96px));margin:0 auto;padding:45px 0 25px;display:grid;grid-template-columns:1fr 1fr;gap:15px}.footer .brand{font-size:21px}.footer p{font-size:11px;color:var(--muted);margin:8px 0}.footer-links{display:flex;justify-content:flex-end;align-items:start;flex-wrap:wrap;gap:12px 24px;font-size:11px}.footer>small{grid-column:1/-1;font-size:10px;letter-spacing:.04em;color:var(--muted);border-top:1px solid var(--line);padding-top:20px;margin-top:18px}.breadcrumb{display:inline-block;font-size:12px;color:var(--muted);margin-bottom:32px}.tool-head{padding-top:36px;padding-bottom:35px}.tool-head .breadcrumb{margin-bottom:25px}.tool-head .eyebrow{margin-bottom:15px}.tool-head h1{font-size:36px;line-height:1.65;margin-bottom:15px}.tool-head>p:not(.eyebrow){font-size:14px;color:var(--muted)}.tool-badges{display:flex;flex-wrap:wrap;gap:12px;font-size:10px;color:var(--blue);font-weight:650}.tool-badges>span{border:1px solid #b8c8e6;padding:3px 10px;border-radius:3px}.mobile-break{display:none}.tool-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:55px;align-items:start;margin-bottom:90px}.log-form{border:1px solid var(--line);background:#fff}.form-section{padding:28px 30px;border-bottom:1px solid var(--line)}.form-title{display:flex;align-items:center;gap:15px;margin-bottom:22px}.form-title>span{font:italic 24px Georgia,serif;color:var(--blue)}.form-title h2{font-size:18px;margin:0}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:21px 22px}.field{display:flex;flex-direction:column;gap:7px;min-width:0;font-size:12px;font-weight:600}.field>span{display:flex;gap:10px;align-items:center}.field small{font-size:9px;color:var(--muted);font-weight:400}.field.wide{grid-column:1/-1}input,select,textarea{border:1px solid #bac4ce;border-radius:4px;background:#fff;color:var(--ink);padding:10px 11px;width:100%;min-width:0;max-width:100%;font-size:16px;line-height:1.7;font-weight:400}input:disabled{background:#f1f3f4;color:#6c7a83}input::placeholder,textarea::placeholder{color:#7b8893;font-size:12px}textarea{resize:vertical;min-height:100px}input[type=date],input[type=time]{min-height:50px;-webkit-appearance:none;appearance:none}input[type=radio]{width:16px;height:16px;accent-color:var(--blue);margin:0;flex-shrink:0}.result-group{padding:0;border:0;display:flex;flex-wrap:wrap;gap:14px;margin:0 0 22px}.result-group legend{font-size:12px;font-weight:600;margin-bottom:10px}.result-group label{display:flex;align-items:center;gap:8px;border:1px solid var(--line);border-radius:4px;padding:9px 12px;font-size:12px;cursor:pointer}.result-group label:has(input:checked){border-color:var(--blue);background:var(--soft);color:var(--blue)}.save-area{padding:28px 30px;background:#f1f5fb}.save-area h2{font-size:17px;margin-bottom:8px}.save-area>p{font-size:11px;color:var(--muted)}.save-area .actions{gap:14px}.save-area .button{font-size:12px;padding-inline:18px;min-height:48px}.reset-link{background:none;text-decoration:underline;font-size:11px;color:var(--muted);padding:0;margin-top:5px}.side-box{padding:23px 0;border-top:1px solid var(--line)}.side-box .eyebrow{font-size:9px;margin-bottom:14px}.side-box h2{font-size:15px;line-height:1.8;margin-bottom:12px}.side-box p{font-size:12px;color:var(--muted)}.side-box .text-link{font-size:11px}.side-box>a:not(.text-link){display:block;font-size:12px;padding:9px 0;border-bottom:1px solid var(--line);line-height:1.8}.share-tool{width:100%;background:var(--soft);border:1px solid #bccce5;color:var(--blue);padding:14px;font-size:11px;font-weight:600;line-height:1.8;border-radius:4px}.tool-sidebar>.fine{font-size:10px;margin-top:9px}.tool-sidebar textarea{font-size:12px;margin-top:10px}.article{max-width:850px;padding-top:38px;padding-bottom:65px}.article .eyebrow{margin-top:15px}.article h1{font-size:36px;line-height:1.8;letter-spacing:.02em;margin-bottom:22px}.article-meta{font-size:11px;color:var(--muted);margin-bottom:45px;padding-bottom:24px;border-bottom:1px solid var(--line)}.article-body{font-size:15px;line-height:2.1}.article-body h2{font-size:22px;line-height:1.8;margin-top:45px;margin-bottom:17px}.article-body>p{margin-bottom:22px}.article-body .lead{font-size:18px;color:var(--muted);line-height:2.1}.article-body li{margin-bottom:12px}.article-body ul{padding-left:24px}.example{border-left:3px solid var(--blue);background:#f0f3f7;padding:22px 28px;margin:30px 0}.example>span{font-size:10px;color:var(--muted);font-weight:650}.example p{font-size:14px;margin:8px 0 0}.checklist{padding:24px 28px;background:#f0f3f7}.checklist h2{margin-top:0}.checklist li::marker{color:var(--blue)}.article-cta{padding:35px;border:1px solid var(--line);margin-top:50px;text-align:center}.article-cta p{font-size:19px}.article-cta small{display:block;font-size:11px;color:var(--muted);margin-top:12px}.related{max-width:850px;border-top:1px solid var(--line);padding:30px 0 60px}.related h2{font-size:14px}.related a{display:block;font-size:13px;padding:12px 0;border-bottom:1px solid var(--line)}.note{padding:25px;border:1px solid var(--line);margin-bottom:40px;font-size:14px}.note a{text-decoration:underline}.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);background:var(--ink);color:white;font-size:12px;padding:12px 20px;border-radius:5px;box-shadow:0 4px 20px #17283922;width:max-content;max-width:calc(100% - 32px);z-index:15;opacity:0;pointer-events:none;transition:opacity .15s,transform .15s}.toast.visible{opacity:1;transform:translate(-50%,0)}.print-record{display:none}.print-toolbar{padding-top:35px;margin-bottom:35px}.print-toolbar .button{margin-left:25px}.blank-sheet{background:#fff;max-width:850px;margin:30px auto 70px;padding:40px;border:1px solid var(--line)}.sheet-title{display:flex;justify-content:space-between;align-items:center;border-bottom:2px solid var(--ink);padding-bottom:15px}.sheet-title h1{margin:0;font-size:28px}.sheet-title>span{font-size:10px;letter-spacing:.09em}.sheet-message{font-size:11px;margin:16px 0 28px;color:var(--muted)}.blank-row{display:grid;grid-template-columns:95px 1fr 95px 1fr;min-height:65px;border-bottom:1px solid var(--line);gap:13px;align-items:center;font-size:11px}.blank-row strong{font-size:11px}.blank-line{min-height:75px;border-bottom:1px solid var(--line);padding-top:15px;font-size:11px}.blank-notes{min-height:140px;border-bottom:1px solid var(--line);padding-top:15px;font-size:11px;background:repeating-linear-gradient(transparent 0,transparent 34px,#f0f2f4 34px,#f0f2f4 35px)}.blank-notes strong,.blank-notes span{display:block}.blank-notes span{font-size:10px;color:var(--muted);margin-top:3px}.sheet-bottom{font-size:10px;margin:25px 0 0;text-align:right;color:var(--muted)}
@media(min-width:1500px){.hero{min-height:680px}.hero h1{font-size:54px}}@media(max-width:1000px){.wrap,.footer{width:calc(100% - 56px)}.header{width:calc(100% - 48px)}nav{gap:20px}.hero{gap:0;min-height:570px;padding-block:50px}.hero h1{font-size:36px}.hero .actions{gap:14px}.hero-desc{font-size:15px}.tool-intro,.app-section{gap:50px}.principle-grid p{font-size:10px;padding-inline:8px}.principle-grid span{margin-right:6px}.section{padding-block:75px}.section h2{font-size:25px}.tool-layout{gap:30px;grid-template-columns:minmax(0,1fr) 230px}.form-section,.save-area{padding:24px}.result-group{gap:8px}.result-group label{padding:8px;font-size:11px}}@media(max-width:720px){.wrap,.footer{width:calc(100% - 40px)}.header{width:calc(100% - 32px);padding:17px 0;gap:12px}.brand{font-size:18px}.brand img{width:32px;height:32px;border-radius:8px}.brand small{font-size:7px}nav{gap:10px;font-size:10px}nav>a:nth-child(2){display:none}.nav-app{font-size:10px}.hero{grid-template-columns:1fr;gap:28px;padding-top:40px;padding-bottom:25px;min-height:0}.hero h1{font-size:37px;line-height:1.65;margin-bottom:17px;letter-spacing:.02em}.eyebrow{font-size:10px;margin-bottom:20px}.hero-desc{font-size:14px;margin-bottom:25px}.hero .button{font-size:12px;padding:13px 17px}.hero .text-link{font-size:11px}.hero-art{width:min(430px,100%);margin:auto}.hero-art img{max-height:400px}.art-caption{font-size:9px}.hero .fine{font-size:10px}.principle-grid{grid-template-columns:1fr}.principle-grid p,.principle-grid p:first-child{font-size:12px;padding:13px 0;border-right:0;border-bottom:1px solid var(--line)}.principle-grid p:last-child{border-bottom:0}.principle-grid span{margin-right:18px}.section{padding-block:60px}.section h2{font-size:26px}.tool-intro{grid-template-columns:1fr;gap:35px}.tool-intro>div>p:not(.eyebrow){font-size:13px}.paper-example{width:calc(100% - 8px);padding:25px;margin-right:8px}.sample-row{grid-template-columns:75px 1fr}.section-heading{display:block;margin-bottom:26px}.section-heading>p{margin-top:15px}.guide{grid-template-columns:35px 1fr 16px;gap:15px;padding:24px 0}.guide-number{font-size:25px}.guide h3{font-size:16px}.guide p{font-size:11px;line-height:1.9}.guide .eyebrow{font-size:9px}.app-section{grid-template-columns:1fr;gap:35px}.app-heading>img{width:70px;height:70px}.app-heading h2 br{display:none}.app-heading p:last-child br{display:none}.app-feature h3{font-size:16px}.closing{padding:55px 0}.closing h2{font-size:30px}.footer{grid-template-columns:1fr;padding-top:30px}.footer-links{justify-content:start;gap:10px 20px;margin-top:8px}.footer>small{margin-top:7px}.tool-head{padding-top:25px;padding-bottom:25px}.tool-head h1{font-size:31px}.tool-head>p:not(.eyebrow){font-size:12px}.mobile-break{display:block}.tool-layout{grid-template-columns:1fr;gap:30px;margin-bottom:50px}.form-section,.save-area{padding:23px 18px}.form-title h2{font-size:17px}.form-grid{gap:19px 15px}.field{font-size:11px}.result-group{gap:8px}.result-group label{padding:8px 10px;font-size:11px}.save-area .actions{gap:12px}.save-area .button{font-size:11px;padding:12px}.save-area .text-link{font-size:11px}.side-box{padding:20px 0}.side-box h2{font-size:14px}.article{padding-top:25px;padding-bottom:45px}.article h1{font-size:29px;line-height:1.8}.article-body{font-size:14px}.article-body .lead{font-size:16px}.article-body h2{font-size:20px;margin-top:35px}.example{padding:18px}.example p{font-size:13px}.article-cta{padding:25px 15px}.article-cta p{font-size:17px}.article-meta{margin-bottom:30px}.related{padding-top:25px;padding-bottom:35px}.blank-sheet{width:calc(100% - 24px);padding:18px;margin-top:20px}.blank-row{grid-template-columns:70px 1fr;gap:8px;min-height:100px;padding:12px 0}.print-toolbar .button{margin:20px 0 0;display:flex}.sheet-title h1{font-size:23px}.sheet-title>span{font-size:8px}.blank-line{min-height:65px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}@media print{@page{size:A4;margin:16mm}body{background:white;font-size:11pt;color:#111}.header,.footer,.print-toolbar,.toast,.skip{display:none!important}.blank-sheet{width:100%;max-width:none;margin:0;padding:0;border:0}.blank-row{grid-template-columns:95px 1fr 90px 1fr;min-height:60px;gap:10px;padding:0}.blank-notes{min-height:140px}.sheet-title h1{font-size:26px}.printing-record main>*:not(.print-record){display:none!important}.printing-record .print-record{display:block!important;width:100%;padding:0}.print-record pre{white-space:pre-wrap;overflow-wrap:anywhere;font:12pt/2 -apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN",sans-serif}.print-record h1{font-size:24pt}.printing-record .print-record{display:block}a{color:inherit;text-decoration:none}}

/* App Store screen previews */
.hero-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;margin:0;min-height:500px;padding:24px 16px 18px;border-radius:20px;background:radial-gradient(ellipse at 72% 20%,#d9eaff 0%,#f1f6fa 62%,#f5f6f3 100%)}
.hero-screen .screen-image{width:min(238px,78%);display:block}
.hero-screen img,.screen-card img,.article-screen img{display:block;width:100%;height:auto;max-height:none;border-radius:12px;box-shadow:0 8px 28px #142f5b23}
.hero-screen figcaption,.article-screen small{color:var(--muted);font-size:11px}
.screen-section{padding-block:70px 32px}
.screen-gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.screen-card{margin:0;display:flex;flex-direction:column;align-items:center;padding:20px 16px 18px;background:#f0f5fb;border:1px solid #d9e4ef;border-radius:16px;gap:17px}
.screen-card .screen-image{width:min(100%,205px);display:block}
.screen-card figcaption{width:min(100%,225px);font-size:14px}
.screen-card figcaption p,.article-screen figcaption p{margin:4px 0 0;color:var(--muted);font-size:13px}
.article-screen{display:grid;grid-template-columns:minmax(110px,195px) minmax(0,1fr);align-items:center;gap:24px;margin:32px 0;padding:22px;background:#eef4fb;border-radius:14px}
.article-screen figcaption strong{font-size:17px}
.article-screen small{display:block;margin-top:9px}
.article-store{display:inline-flex;margin-top:13px}
@media(max-width:720px){
 .hero-screen{width:100%;min-height:0;padding:20px 12px 16px}
 .hero-screen .screen-image{width:min(188px,76%)}
 .screen-section{padding-block:45px 18px}
 .screen-gallery{grid-template-columns:1fr;gap:14px}
 .screen-card{display:grid;grid-template-columns:minmax(110px,42%) minmax(0,1fr);padding:14px;gap:15px}
 .article-screen{grid-template-columns:minmax(90px,42%) minmax(0,1fr);padding:14px;gap:14px}
 .article-screen figcaption strong{font-size:15px}
}