*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:#102342;background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic",sans-serif;font-size:15px;line-height:1.7}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}.site-header{height:76px;display:flex;align-items:center;justify-content:space-between;padding:0 32px;border-bottom:1px solid #e8eef5;background:#fff;position:relative;z-index:20}.brand{display:flex;align-items:center;gap:12px;line-height:1.25}.brand-icon{font-family:Georgia,serif;font-size:34px;line-height:1}.brand strong{display:block;font-size:20px;letter-spacing:.02em}.brand small{display:block;color:#526482;font-size:11px;margin-top:5px}.top-nav{display:flex;gap:34px;font-size:13px;font-weight:700}.top-nav a:hover,.breadcrumb a:hover{color:#267765}.menu-button{display:none}.layout{display:grid;grid-template-columns:280px minmax(0,1fr);min-height:calc(100vh - 76px)}.sidebar{background:#f7fafe;border-right:1px solid #e8eef5;padding:14px 12px 28px}.sidebar nav{position:sticky;top:16px}.side-home,.side-index{display:flex;gap:10px;align-items:center;padding:9px 13px;margin-bottom:3px;border-radius:9px;font-weight:700;font-size:13px}.side-home.active,.side-index.active,.side-home:hover,.side-index:hover{background:#e5f0fc;color:#0b4288}.side-part>a{display:grid;grid-template-columns:51px 1fr 12px;gap:4px;align-items:center;padding:8px 9px;border-radius:7px;font-size:12px;line-height:1.4}.side-part>a:hover,.part-current{background:#edf4fc}.side-part>a span:first-child{white-space:nowrap}.chevron{font-size:14px}.subnav{padding:1px 0 4px 52px;display:grid;gap:2px;font-size:10px;line-height:1.45}.subnav>*{padding:6px 5px;border-radius:6px}.subnav>span{color:#64748b}.subnav a.selected,.subnav a:hover{background:#e5f0fc;color:#0b4288;font-weight:700}main{min-width:0}.hero{min-height:calc(100vh - 76px);position:relative;overflow:hidden;background:linear-gradient(115deg,#edf5fc 0%,#e9f4fc 55%,#f1f8fd 100%);padding:56px clamp(40px,6vw,100px) 42px;display:flex;flex-direction:column;align-items:center}.hero-copy{width:min(100%,1020px);position:relative;z-index:1}.eyebrow{color:#2d8076;letter-spacing:.16em;font-weight:800;font-size:11px;margin:0 0 10px}.hero h1{font-size:clamp(40px,4.3vw,66px);line-height:1.22;margin:0 0 18px;letter-spacing:.02em}.lead{font-size:18px;line-height:1.85;margin:0;max-width:590px;color:#354762}.bank-art{position:absolute;width:clamp(280px,32vw,430px);right:1.5%;top:63px;opacity:.92}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;width:min(100%,1020px);margin-top:50px;position:relative;z-index:1}.feature{background:#fff;border:1px solid #edf2f7;border-radius:9px;min-height:160px;padding:19px 25px;text-align:center;box-shadow:0 4px 18px #dbe7f133}.feature-icon{font-family:Georgia,serif;font-size:34px;line-height:1.1}.feature h2{font-size:16px;margin:9px 0 6px}.feature p{color:#526482;font-size:13px;line-height:1.65;margin:0;text-align:left}.primary-cta{margin-top:27px;background:#389574;color:#fff;border-radius:100px;display:flex;gap:18px;align-items:center;justify-content:center;width:min(400px,100%);min-height:50px;font-weight:800;box-shadow:0 4px 8px #75bca444}.primary-cta:hover{background:#2f8266}.hero-note{font-size:12px;color:#61738e;margin:11px 0 0;text-align:center}.mobile-break{display:none}.page-wrap{max-width:970px;margin:0 auto;padding:32px 50px 72px}.breadcrumb{display:flex;gap:10px;flex-wrap:wrap;color:#667993;font-size:11px;margin:0 0 30px}.page-heading{margin-bottom:28px}.page-heading h1,.article-title h1{font-size:32px;line-height:1.4;margin:0 0 10px;letter-spacing:.01em}.page-heading>p:last-child{color:#526482;margin:0}.toc-feature{border:1px solid #dbe7f1;border-radius:10px;padding:26px 28px;margin-bottom:17px;box-shadow:0 3px 15px #ebf1f660}.part-label{font-size:11px;font-weight:800;color:#287269;letter-spacing:.12em}.toc-feature h2{font-size:23px;margin:4px 0 7px}.toc-feature>p{font-size:13px;color:#60718a;line-height:1.7;margin:0 0 18px}.toc-row{display:flex;justify-content:space-between;gap:16px;align-items:center;padding:14px 15px;border:1px solid #e1e9f1;border-radius:7px;margin-top:9px}.toc-row strong,.toc-row small{display:block}.toc-row strong{font-size:14px}.toc-row small{font-size:11px;color:#71829b;margin-top:3px}.toc-row.muted{color:#526482;background:#fbfcfe}.toc-row.available{color:#0b4c99;background:#f9fcff}.toc-row.available:hover{background:#edf6ff;border-color:#a9c8e9}.status{font-size:11px;white-space:nowrap;color:#548779;font-weight:700}.toc-list{border:1px solid #e1e9f1;border-radius:9px;overflow:hidden}.toc-part{display:flex;align-items:center;gap:14px;min-height:45px;border-bottom:1px solid #e1e9f1;padding:8px 17px;font-size:13px}.toc-part:last-child{border-bottom:0}.toc-part>span{font-size:11px;white-space:nowrap;color:#65758d}.toc-part>strong{font-weight:600}.toc-part>em{font-size:11px;font-style:normal;color:#8796aa;margin-left:auto;white-space:nowrap}.article-wrap{max-width:920px}.article-title{display:flex;align-items:end;justify-content:space-between;gap:18px;border-bottom:1px solid #e8eef5;padding-bottom:18px}.article-title h1{font-size:30px;margin:0}.read-button{white-space:nowrap;border:1px solid #badbcf;background:#fff;color:#247c60;border-radius:6px;padding:7px 15px;font-size:12px;font-weight:800}.read-button:hover,.read-button.is-read{background:#eaf7ef}.article-body{max-width:720px}.article-body section{margin-top:30px}.article-body h2{font-size:18px;border-left:4px solid #6d8fac;padding-left:11px;margin:0 0 12px}.article-body p,.article-body li{font-size:14px;line-height:1.85;color:#334563}.article-body ul{padding-left:23px;margin:4px 0}.diagram{border:1px solid #dde8f0;background:#f8fbfe;border-radius:9px;padding:28px 22px 17px;margin:21px 0}.diagram-flow{display:flex;align-items:center;justify-content:center;gap:8px}.node{border:1.5px solid #a4b8cb;border-radius:7px;text-align:center;padding:11px 10px;min-width:106px;background:#fff;line-height:1.45}.node strong,.node small{display:block}.node strong{font-size:13px}.node small{font-size:10px}.node.person{border:0;background:transparent;min-width:75px}.node-icon{display:block;font-size:27px;line-height:1}.node.frontend{background:#e4f0ff;border-color:#72a4e6}.node.api{background:#fff5e6;border-color:#e6b467}.node.supabase{background:#e4f7ec;border-color:#7ac59d}.node.database{background:#f0eaff;border-color:#a890e1}.arrow{font-size:24px;color:#304761;line-height:1}.database-link{display:flex;flex-direction:column;align-items:flex-end;padding-right:13px;line-height:1}.database-link>span{font-size:23px;margin-right:49px}.table-scroll{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:12px}th,td{border:1px solid #dce4ed;padding:9px 12px;text-align:left}th{background:#f3f6fa}td:first-child{white-space:nowrap}.article-bottom{display:flex;justify-content:space-between;align-items:center;gap:15px;border-top:1px solid #e7edf3;margin-top:34px;padding-top:20px}.article-bottom>a{border:1px solid #d3dee9;border-radius:6px;padding:8px 16px;font-size:12px}.article-bottom>a:hover{background:#f5f9fd}
@media(max-width:1100px){.layout{grid-template-columns:235px minmax(0,1fr)}.site-header{padding:0 22px}.sidebar{padding-inline:8px}.side-part>a{font-size:11px;grid-template-columns:46px 1fr 10px}.hero{padding:55px 35px 35px}.bank-art{width:300px;right:0;top:75px;opacity:.65}.feature-grid{margin-top:60px}.feature{padding:17px}.page-wrap{padding:30px 35px 65px}}
@media(max-width:700px){.site-header{height:64px;padding:0 16px}.brand-icon{font-size:29px}.brand strong{font-size:16px}.brand small{font-size:9px}.top-nav{display:none}.menu-button{display:flex;align-items:center;gap:5px;border:1px solid #d6e2ed;border-radius:7px;background:#fff;color:#102342;padding:7px 10px;font-size:12px;font-weight:700}.layout{display:block;min-height:calc(100vh - 64px)}.sidebar{display:none;position:absolute;z-index:15;top:64px;left:0;right:0;box-shadow:0 15px 22px #14264024;max-height:calc(100vh - 64px);overflow:auto}.menu-open .sidebar{display:block}.hero{min-height:calc(100vh - 64px);padding:37px 21px 34px;align-items:stretch}.hero-copy{z-index:1}.hero h1{font-size:42px;margin-bottom:16px}.mobile-break{display:block}.lead{font-size:15px;line-height:1.75}.lead br{display:none}.bank-art{position:relative;width:88%;max-width:340px;align-self:center;right:auto;top:auto;margin:-2px 0 -2px;opacity:.95}.feature-grid{grid-template-columns:1fr;gap:10px;margin-top:0}.feature{min-height:0;padding:12px 16px;text-align:left;display:grid;grid-template-columns:36px 1fr;column-gap:10px}.feature-icon{grid-row:span 2;font-size:28px;align-self:center}.feature h2{font-size:14px;margin:0 0 2px}.feature p{font-size:11px;line-height:1.5}.primary-cta{align-self:center;margin-top:22px}.hero-note{font-size:11px}.page-wrap{padding:22px 19px 54px}.breadcrumb{margin-bottom:22px;font-size:10px}.page-heading h1{font-size:27px}.page-heading>p:last-child{font-size:13px}.toc-feature{padding:20px 16px}.toc-feature h2{font-size:19px}.toc-row{padding:11px;gap:8px}.toc-row strong{font-size:12px}.toc-row small{font-size:10px}.status{font-size:10px}.toc-part{gap:9px;padding:8px 10px;font-size:11px}.toc-part>span,.toc-part>em{font-size:9px}.article-title{align-items:start}.article-title h1{font-size:25px}.article-title .read-button{margin-top:29px;padding:6px 8px;font-size:10px}.article-body section{margin-top:26px}.article-body h2{font-size:16px}.article-body p,.article-body li{font-size:13px}.diagram{padding:17px 12px}.diagram-flow{display:grid;grid-template-columns:1fr 20px 1fr;gap:5px}.diagram-flow .node{min-width:0;padding:8px 4px}.diagram-flow .arrow:nth-of-type(4){display:none}.diagram-flow .node.supabase{grid-column:3}.diagram-flow .node.api{grid-column:1}.diagram-flow .arrow:nth-of-type(3){grid-column:2;transform:rotate(180deg)}.diagram-flow .node.person{grid-column:1}.diagram-flow .arrow:nth-of-type(1){grid-column:2}.diagram-flow .node.frontend{grid-column:3}.database-link{padding-right:0;align-items:center}.database-link>span{margin-right:0}.node.database{width:45%}.node strong{font-size:11px}.node small{font-size:9px}}