:root{color-scheme:dark;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif;background:#0c1b28;color:#eef1f3;line-height:1.7}
*{box-sizing:border-box}body{margin:0}main{width:min(100% - 40px,460px);margin:auto;padding:max(30px,env(safe-area-inset-top)) 0 max(28px,env(safe-area-inset-bottom))}header{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}.wordmark{font-family:Georgia,serif;font-size:30px;letter-spacing:-1px}.dot{color:#d1b28d}.tag{color:#aebac6;font-size:12px;border:1px solid #344653;border-radius:20px;padding:4px 12px}.panel{background:#132635;border:1px solid #2a3f4f;border-radius:22px;padding:32px 26px}.book{height:96px;width:76px;border-radius:4px 12px 12px 4px;background:linear-gradient(90deg,#233d50 10%,#627d92 12%,#4e6d83 15%,#4e6d83 92%,#e2ded2 93%);border:1px solid #91a5b0;box-shadow:5px 5px 0 #09151f;margin-bottom:30px;display:grid;place-items:center}.book span{font-family:Georgia,serif;font-size:35px;color:#e5e1d7}.eyebrow{font-size:10px;letter-spacing:2px;color:#b8c6ce}h1{font-size:28px;line-height:1.6;letter-spacing:.04em;margin:12px 0 18px;font-weight:500}.intro,footer{color:#b2bfca;font-size:13px}#status{background:#0c1b28;border-radius:10px;padding:14px 16px;font-size:13px;margin:24px 0 20px;overflow-wrap:anywhere}#status[data-error=true]{border:1px solid #b77f70;color:#f0c9bd}button,input{font:inherit}button{min-height:48px;width:100%;border:1px solid transparent;border-radius:10px;cursor:pointer;padding:10px 14px;touch-action:manipulation}.primary{background:#e3ddd0;color:#172735;font-size:14px;font-weight:600}.quiet{margin-top:12px;background:transparent;border-color:#3f5362;color:#c5d0d8;font-size:13px}button:disabled{opacity:.5;cursor:wait}button:focus-visible,input:focus-visible{outline:3px solid #94bed9;outline-offset:3px}.success{font-size:12px;color:#c0d7b6}h2{font-size:17px;font-weight:500;overflow-wrap:anywhere}label{display:block;font-size:12px;color:#b2bfca;margin:20px 0 8px}input{width:100%;min-height:48px;background:#0c1b28;color:#eef1f3;border:1px solid #4c6170;border-radius:8px;padding:10px 12px;margin-bottom:16px;font-size:16px}footer{text-align:center;font-size:11px;margin-top:22px;line-height:1.9}[hidden]{display:none!important}@media(max-width:360px){main{width:calc(100% - 24px)}.panel{padding:26px 20px}h1{font-size:25px}}