:root{--ink:#172033;--muted:#657188;--line:#cbd5e1;--accent:#176b87}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:#f1f5f9;color:var(--ink);font-family:"Hiragino Sans","Yu Gothic",sans-serif;padding:24px 16px}main{width:min(460px,100%);margin:7vh auto;background:#fff;border:1px solid var(--line);border-top:5px solid var(--accent);padding:28px}h1{font-size:23px;margin:0 0 16px}p{font-size:14px;line-height:1.8}label{display:block;margin:18px 0 8px;font-weight:700;font-size:14px}input{width:100%;min-height:48px;padding:10px 12px;border:1px solid #aeb9c8;border-radius:4px;font-size:16px}button{min-height:48px;padding:10px 14px;cursor:pointer;border-radius:4px;font-size:15px}.submit{width:100%;margin-top:22px;background:var(--accent);border:0;color:#fff;font-weight:700}.password-wrap{display:flex;gap:8px}.password-wrap input{min-width:0}.toggle{white-space:nowrap;border:1px solid var(--line);background:#f8fafc}.error{padding:12px;background:#fff1f0;border-left:4px solid #b42318}.notice{padding:12px;background:#edf6f8;border-left:4px solid var(--accent)}a{color:var(--accent)}.back{display:inline-block;margin-top:20px}.hint{color:var(--muted);font-size:12px}input:focus,button:focus-visible,a:focus-visible{outline:3px solid #8bc4d8;outline-offset:2px}[hidden]{display:none!important}