:root{font-family:Inter,"Noto Sans JP","Yu Gothic UI",Meiryo,system-ui,sans-serif;color:#202629;background:#f4f5f6;font-size:14px;color-scheme:light;--text:#202629;--muted:#59636b;--line:#dfe3e5;--accent:#12695e;--tint:#e9f3ef;--surface:#fff}
*{box-sizing:border-box}body{margin:0}a{color:var(--accent);text-underline-offset:3px}button,input{font:inherit;touch-action:manipulation}button,.button{border:1px solid transparent;border-radius:7px;padding:11px 16px;min-height:44px;line-height:1.5;cursor:pointer;text-align:center;font-weight:600}button:disabled{opacity:.5;cursor:default}.primary{background:var(--accent);color:white;text-decoration:none}.primary:hover:not(:disabled){background:#0b5249}.secondary{background:white;border-color:#cfd5d8;color:var(--text)}.secondary:hover:not(:disabled){background:#e9eded}.text-button{background:transparent;color:var(--muted);font-size:12px;padding-left:0;font-weight:400;text-decoration:underline}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #288d7e;outline-offset:3px}[hidden]{display:none!important}
.topbar{min-height:68px;background:white;border-bottom:1px solid var(--line);padding:15px 32px;display:flex;align-items:center;justify-content:space-between;gap:15px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text)}.brand strong{font-size:21px;letter-spacing:.04em}.brand-mark{display:grid;place-items:center;background:var(--accent);color:#fff;width:33px;height:33px;border-radius:9px;font-size:28px;font-weight:700}.topbar>a:last-child{font-size:12px}main{max-width:650px;margin:0 auto;padding:24px 24px 36px}.sandbox{padding:12px 16px;margin:0;background:var(--tint);color:#154e45;border:1px solid #c9ddd6;border-radius:7px;font-size:13px}.sandbox strong{margin-right:9px}.heading{padding:31px 0 17px}.eyebrow{font-size:12px;color:var(--muted);margin:0 0 12px}h1{font-size:32px;line-height:1.5;letter-spacing:-.03em;margin:0 0 13px;text-wrap:balance}h2{font-size:18px;margin:0;line-height:1.5}h3{font-size:14px;margin:0 0 8px}p{line-height:1.8}.heading>p:last-child{color:var(--muted);margin:0}.card{background:white;border:1px solid var(--line);border-radius:12px;padding:26px;margin-top:12px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:10px}.tag{color:var(--accent);background:var(--tint);border-radius:4px;padding:4px 7px;font-size:11px;white-space:nowrap}.features{padding-left:20px;line-height:1.9;margin:22px 0}.features li{margin-bottom:7px}.features li::marker{color:var(--accent)}.price-row{display:flex;align-items:baseline;gap:13px;flex-wrap:wrap;margin-top:25px}.price-row>span:last-child{font-size:12px;color:var(--muted)}.price{font-size:32px;font-weight:650;font-variant-numeric:tabular-nums}.fine{font-size:12px;line-height:1.8;color:var(--muted)}.wide{display:block;width:100%}.test-card{border-top:1px solid var(--line);padding-top:14px;font-size:12px}.test-card summary{cursor:pointer;padding:3px 0;color:var(--muted)}code{font-family:ui-monospace,monospace;font-size:13px}.notice{font-size:13px;line-height:1.8;color:var(--accent);margin:0 0 10px}.notice.error{color:#a13732}.recovery-section{border-top:1px solid var(--line);margin-top:25px;padding-top:23px}.recovery-section .secondary{font-size:12px}label{display:block;font-weight:600;font-size:12px;margin-bottom:8px}input{min-width:0;width:100%;height:44px;border:1px solid #cfd5d8;border-radius:6px;background:white;color:var(--text);padding:10px 12px}#key-result{margin-top:18px}#recovery-key{font-family:ui-monospace,monospace}#copy-key{margin-top:10px}#logout{margin-top:18px}.restore{border-top:1px solid var(--line);margin-top:30px;padding-top:25px}.restore h2{font-size:15px;margin-bottom:15px}.restore-row{display:flex;gap:8px}.restore-row input{flex:1}.restore-row button{white-space:nowrap;font-size:12px}footer{font-size:11px;color:var(--muted);line-height:1.9;margin-top:28px}footer a{display:inline-block;margin-top:8px}
@media(max-width:500px){.topbar{padding:13px 18px}main{padding:20px 16px 28px}.heading{padding-top:27px}h1{font-size:28px}.card{padding:20px}.sandbox{font-size:12px;padding:10px 12px}.section-heading{align-items:flex-start}.section-heading h2{font-size:16px}.price{font-size:29px}.features{font-size:13px}.restore-row{flex-wrap:wrap}.restore-row input{flex-basis:100%}.restore-row button{width:100%}}