:root{font-family:Hiragino Sans,Noto Sans JP,sans-serif;color:#1a1a1a;background:#f6f4ef}*{box-sizing:border-box}body{margin:0}.shell{display:grid;grid-template-columns:220px 1fr;min-height:100vh}aside{background:#1f2a24;color:#fff;padding:24px 16px}aside .brand-link{display:block;margin-bottom:8px}aside .emeishi-logo-small{height:40px;width:auto;display:block}aside nav{display:flex;flex-direction:column;gap:8px;margin-top:24px}aside a{color:#d7e3db;text-decoration:none}aside a.active{color:#fff;font-weight:600}main{padding:32px}.auth-shell{min-height:100vh;display:grid;place-items:center;align-content:center;gap:20px}.auth-brand .emeishi-logo-large{height:56px;width:auto;display:block}.card{width:360px;background:#fff;padding:24px;border-radius:16px;display:grid;gap:12px;box-shadow:0 8px 32px #0001}.card input{padding:10px 12px;border:1px solid #d5d0c6;border-radius:8px}.emeishi-btn{padding:10px 14px;border:0;border-radius:8px;cursor:pointer}.emeishi-btn-primary{background:#1f6b4a;color:#fff}.error{color:#b42318}