*,:after,:before{box-sizing:border-box}body,html{margin:0;padding:0;height:100%;font-family:system-ui,-apple-system,Segoe UI,sans-serif}.auth-shell{min-height:100vh;display:grid;place-items:center;background:#f5f5f7;padding:16px}.auth-card{width:min(420px,100%);background:#fff;border-radius:12px;padding:32px;box-shadow:0 4px 24px rgba(0,0,0,.06)}.auth-card h1{margin:0 0 4px;font-size:24px}.auth-card p.muted{margin:0 0 24px;color:#666;font-size:14px}.auth-card form{display:flex;flex-direction:column;gap:12px}.auth-card label{font-size:13px;font-weight:500;color:#333}.auth-card input{width:100%;padding:10px 12px;font-size:14px;border:1px solid #d0d0d6;border-radius:8px;outline:none;transition:border-color .15s}.auth-card input:focus{border-color:#5b3eff}.auth-card button{margin-top:8px;padding:10px 16px;font-size:14px;font-weight:500;background:#5b3eff;color:#fff;border:none;border-radius:8px;cursor:pointer;transition:background .15s}.auth-card button:hover{background:#4a2eef}.auth-card button:disabled{opacity:.6;cursor:not-allowed}.auth-card .err{color:#c62828;font-size:13px}.auth-card .footer{margin-top:16px;font-size:13px;color:#666;text-align:center}.auth-card .footer a{color:#5b3eff;text-decoration:none}.auth-card .footer a:hover{text-decoration:underline}.app-header{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;border-bottom:1px solid #e5e5e9;background:#fff}.app-header .brand{font-weight:600;font-size:16px;color:#333;text-decoration:none}.app-header .user-menu{display:flex;align-items:center;gap:12px;font-size:14px;color:#555}.app-header button{padding:6px 12px;font-size:13px;background:transparent;border:1px solid #d0d0d6;border-radius:6px;cursor:pointer;color:#333}.app-header button:hover{background:#f5f5f7}.app-content{padding:24px;max-width:1200px;margin:0 auto}