:root{color-scheme:light;--green:#315e69}*{box-sizing:border-box}body{margin:0;background:#f3f7f8;color:#24343b;font:18px/1.6 system-ui,sans-serif}header{padding:20px 5%;background:#fff;border-bottom:1px solid #cbd8dc;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}header a{display:flex;align-items:center;gap:12px;color:var(--green);text-decoration:none}main{max-width:760px;margin:40px auto;padding:0 24px}h1{font:600 clamp(30px,5vw,44px)/1.2 Georgia,serif}.notice{padding:16px;border-left:4px solid var(--green);background:#eaf1f3}.tabs{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0}button,input,select{font:inherit;border:1px solid #72878e;border-radius:8px;min-height:48px;padding:10px 14px}button{cursor:pointer;background:#fff;color:var(--green)}button[aria-pressed=true],#submit{background:var(--green);color:#fff}form{padding:24px;background:#fff;border:1px solid #cbd8dc;border-radius:12px}form label{display:grid;gap:8px;margin:0 0 20px}input{width:100%;min-width:0}small{font-size:16px}#account-status{margin-bottom:0}button:focus-visible,input:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid var(--green);outline-offset:4px}[hidden]{display:none!important}@media(max-width:480px){main{padding:0 16px;margin:24px auto}form{padding:18px}.tabs button{width:100%}header{padding:16px}header label{display:grid;gap:6px;width:100%}}